:root {
  --bg: #f4efe6;
  --bg-soft: #fbf8f3;
  --ink: #172026;
  --ink-soft: #37424a;
  --gold: #ba8f3f;
  --teal: #0f6d68;
  --teal-deep: #0a4e4a;
  --line: rgba(23, 32, 38, 0.14);
  --card: rgba(255, 255, 255, 0.82);
  --card-strong: #fffdfa;
  --shadow: 0 18px 40px rgba(16, 27, 33, 0.12);
  --radius: 18px;
  --max: 1180px;
  --speed: 0.35s;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Syne", "Segoe UI", sans-serif;
  color: var(--ink);
  background: radial-gradient(
      circle at 20% 15%,
      rgba(186, 143, 63, 0.16),
      transparent 35%
    ),
    linear-gradient(160deg, #f8f2e8 0%, #f1f7f5 55%, #ecf2f6 100%);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.site-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
}

.bg-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(4px);
  opacity: 0.45;
}

.orb-1 {
  width: min(42vw, 580px);
  aspect-ratio: 1;
  background: radial-gradient(
    circle at 35% 40%,
    rgba(186, 143, 63, 0.56),
    rgba(186, 143, 63, 0)
  );
  top: -12%;
  right: -8%;
  animation: drift 15s ease-in-out infinite;
}

.orb-2 {
  width: min(32vw, 420px);
  aspect-ratio: 1;
  background: radial-gradient(
    circle at 55% 50%,
    rgba(15, 109, 104, 0.45),
    rgba(15, 109, 104, 0)
  );
  bottom: 6%;
  left: -8%;
  animation: drift 18s ease-in-out infinite reverse;
}

.bg-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(
      rgba(23, 32, 38, 0.04) 1px,
      transparent 1px
    ),
    linear-gradient(90deg, rgba(23, 32, 38, 0.04) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: radial-gradient(circle at center, #000 40%, transparent 82%);
}

.site-header {
  width: min(var(--max), calc(100% - 2.4rem));
  margin: 1.2rem auto 0;
  padding: 0.6rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  position: sticky;
  top: 0.8rem;
  z-index: 20;
}

.brand {
  text-decoration: none;
  color: var(--ink);
  display: inline-flex;
  flex-direction: column;
  padding-inline: 0.24rem;
  flex-shrink: 0;
}

.brand-line {
  font-weight: 700;
  letter-spacing: 0.02em;
  font-size: 0.97rem;
}

.brand-sub {
  font-size: 0.64rem;
  color: var(--ink-soft);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.main-nav {
  margin-left: auto;
  display: flex;
  flex-wrap: nowrap;
  gap: 0.08rem;
  align-items: center;
  min-width: 0;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.28rem;
  margin-left: 0.35rem;
}

.lang-switch a {
  text-decoration: none;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 0.3rem 0.42rem;
  line-height: 1;
  background: rgba(255, 255, 255, 0.62);
  transition: border-color var(--speed), color var(--speed), background var(--speed);
}

.lang-switch a:hover,
.lang-switch a:focus-visible,
.lang-switch a.is-active {
  border-color: rgba(15, 109, 104, 0.44);
  color: var(--teal-deep);
  background: rgba(15, 109, 104, 0.1);
  outline: none;
}

.main-nav a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  padding: 0.5rem 0.62rem;
  border-radius: 999px;
  white-space: nowrap;
  transition: background var(--speed), color var(--speed), transform var(--speed);
}

.main-nav a:hover,
.main-nav a:focus-visible,
.main-nav a.is-active {
  background: rgba(15, 109, 104, 0.12);
  color: var(--teal-deep);
  outline: none;
}

.menu-toggle {
  display: none;
  margin-left: auto;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: #fff;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.menu-toggle span {
  width: 18px;
  height: 2px;
  background: var(--ink);
  display: block;
  transition: transform var(--speed), opacity var(--speed);
}

.menu-toggle.is-open span:first-child {
  transform: translateY(3.5px) rotate(45deg);
}

.menu-toggle.is-open span:last-child {
  transform: translateY(-3.5px) rotate(-45deg);
}

main {
  width: min(var(--max), calc(100% - 2.4rem));
  margin: 1.8rem auto 0;
  padding-bottom: 2.4rem;
}

.section {
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  margin-bottom: 1.15rem;
  padding: clamp(1.1rem, 2.2vw, 2rem);
}

.hero {
  display: grid;
  grid-template-columns: 1.25fr minmax(220px, 0.9fr);
  align-items: center;
  gap: clamp(1rem, 2.3vw, 2rem);
  background: linear-gradient(
      125deg,
      rgba(15, 109, 104, 0.12),
      rgba(255, 255, 255, 0.7)
    ),
    var(--card-strong);
}

.hero-text h1,
.inner-hero h1 {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-weight: 700;
  line-height: 0.98;
  letter-spacing: 0.01em;
  margin: 0.2rem 0 0.9rem;
  font-size: clamp(2.1rem, 6vw, 4.2rem);
}

.hero-text h1 span {
  color: var(--teal-deep);
}

.eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.73rem;
  font-weight: 700;
  color: var(--teal-deep);
}

.lead {
  margin: 0;
  max-width: 68ch;
  color: var(--ink-soft);
  line-height: 1.64;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.35rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  font-weight: 700;
  font-size: 0.86rem;
  letter-spacing: 0.03em;
  border-radius: 999px;
  border: 1px solid transparent;
  min-height: 42px;
  padding: 0.64rem 1.05rem;
  transition: transform var(--speed), box-shadow var(--speed), background var(--speed);
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.btn-primary {
  color: #fff;
  background: linear-gradient(120deg, var(--teal), var(--teal-deep));
  box-shadow: 0 10px 24px rgba(15, 109, 104, 0.25);
}

.btn-ghost {
  color: var(--teal-deep);
  border-color: rgba(15, 109, 104, 0.35);
  background: rgba(255, 255, 255, 0.68);
}

.hero-photo-frame {
  margin: 0;
  position: relative;
  justify-self: center;
  width: min(100%, 260px);
}

.hero-photo {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 26px;
  border: 4px solid rgba(255, 255, 255, 0.78);
  box-shadow: 0 22px 30px rgba(15, 38, 33, 0.2);
}

.hero-photo-frame figcaption {
  margin-top: 0.55rem;
  text-align: center;
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.stats {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.stat-card {
  border-radius: 14px;
  padding: 0.95rem;
  border: 1px solid var(--line);
  background: linear-gradient(160deg, #ffffff, #f7f8fa);
}

.stat-value {
  margin: 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: clamp(1.6rem, 3.8vw, 2.4rem);
  font-weight: 700;
  color: var(--teal-deep);
}

.stat-label {
  margin: 0.3rem 0 0;
  font-size: 0.84rem;
  color: var(--ink-soft);
  line-height: 1.45;
}

.section-title-wrap h2 {
  margin: 0.2rem 0 0;
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: clamp(1.7rem, 4.6vw, 2.7rem);
}

.feature-grid,
.project-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1rem;
}

.books-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1rem;
}

.books-grid-home {
  grid-template-columns: 1fr;
}

.stories-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
  margin-top: 1rem;
}

.stories-grid-home {
  grid-template-columns: 1fr;
}

.story-card {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 1rem;
}

.story-header h3 {
  margin: 0;
  font-size: clamp(1.3rem, 2.8vw, 1.85rem);
}

.story-period {
  margin: 0;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal-deep);
  font-weight: 700;
}

.story-subtitle {
  margin: 0.48rem 0 0;
  color: var(--ink-soft);
  line-height: 1.56;
  font-size: 0.9rem;
}

.story-quote {
  margin: 0.8rem 0 0;
  padding: 0.72rem 0.85rem;
  border-left: 3px solid var(--gold);
  border-radius: 0 10px 10px 0;
  background: linear-gradient(170deg, #fbf7ee, #f7fbfb);
  color: #2a3942;
  font-size: 0.88rem;
  line-height: 1.58;
}

.story-content {
  margin-top: 0.82rem;
}

.story-content p {
  margin: 0;
  color: var(--ink-soft);
  line-height: 1.62;
  font-size: 0.9rem;
}

.story-content p + p {
  margin-top: 0.7rem;
}

.story-details {
  margin-top: 0.82rem;
  border: 1px solid rgba(15, 109, 104, 0.22);
  border-radius: 12px;
  background: linear-gradient(168deg, #fcfefe, #f4faf9);
  overflow: hidden;
}

.story-details summary {
  cursor: pointer;
  padding: 0.62rem 0.78rem;
  font-weight: 700;
  color: var(--teal-deep);
  user-select: none;
}

.story-details summary::-webkit-details-marker {
  display: none;
}

.story-summary-close {
  display: none;
}

.story-details[open] .story-summary-open {
  display: none;
}

.story-details[open] .story-summary-close {
  display: inline;
}

.story-details[open] summary {
  border-bottom: 1px dashed rgba(15, 109, 104, 0.28);
}

.story-details .story-content {
  margin-top: 0;
  padding: 0.68rem 0.78rem 0.78rem;
}

.story-tags {
  margin-top: 0.78rem;
}

.story-actions {
  margin-top: 0.85rem;
}

.game-grid {
  display: grid;
  gap: 0.9rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1rem;
}

.game-card {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 1rem;
}

.game-card h3 {
  margin: 0;
}

.game-card p {
  margin: 0.55rem 0 0;
  color: var(--ink-soft);
  line-height: 1.58;
  font-size: 0.9rem;
}

.math-problem .project-kicker {
  margin-bottom: 0.35rem;
}

.math-problem h3 {
  margin: 0;
}

.math-problem h4 {
  margin: 0.78rem 0 0.2rem;
  font-size: 0.95rem;
  color: #123946;
}

.math-dialogue-line {
  margin-top: 0.4rem;
  padding-left: 0.65rem;
  border-left: 2px solid rgba(15, 109, 104, 0.25);
}

.math-solution {
  margin-top: 0.9rem;
  border: 1px solid rgba(15, 109, 104, 0.26);
  border-radius: 12px;
  background: linear-gradient(165deg, rgba(252, 255, 255, 0.95), rgba(242, 250, 249, 0.95));
  padding: 0.55rem 0.75rem 0.75rem;
}

.math-solution summary {
  cursor: pointer;
  font-weight: 700;
  color: var(--teal-deep);
}

.math-solution-content p {
  margin: 0.55rem 0 0;
  color: var(--ink-soft);
  line-height: 1.58;
  font-size: 0.9rem;
}

.math-combo-list {
  margin: 0.55rem 0 0;
  padding-left: 1rem;
  display: grid;
  gap: 0.22rem;
}

.math-combo-list li {
  color: var(--ink-soft);
  line-height: 1.5;
  font-size: 0.9rem;
}

.math-combo-list code {
  background: #f4f7f7;
  border: 1px solid rgba(15, 109, 104, 0.2);
  border-radius: 6px;
  padding: 0.08rem 0.35rem;
  font-size: 0.82rem;
  color: #123542;
}

.math-answer-final {
  margin-top: 0.66rem;
  padding-top: 0.45rem;
  border-top: 1px dashed rgba(15, 109, 104, 0.25);
}

.math-variant-title {
  margin-top: 0.62rem;
  font-weight: 700;
  color: #153f4d;
}

.dama-game {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 1rem;
}

.dama-game .dama-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.55rem 0.75rem;
  margin: 0 0 0.9rem;
}

.dama-game .dama-control-item {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  min-width: 140px;
}

.dama-game .dama-control-item-check {
  justify-content: flex-end;
  min-width: 220px;
}

.dama-game .dama-controls label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
}

.dama-game .dama-check-label {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  user-select: none;
}

.dama-game .dama-check-label input {
  width: 1rem;
  height: 1rem;
  accent-color: var(--teal-deep);
}

.dama-game .dama-controls select {
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.36rem 0.55rem;
  background: #fff;
  color: var(--ink);
  font: inherit;
  min-width: 120px;
}

.dama-game .dama-controls select:disabled {
  opacity: 0.62;
  cursor: not-allowed;
  background: #f4f4f4;
}

.dama-game .dama-control-item.is-disabled label {
  opacity: 0.7;
}

.dama-game .dama-controls .btn {
  margin-left: auto;
}

.dama-game .dama-control-note {
  margin: 0;
  width: 100%;
  color: var(--ink-soft);
  font-size: 0.78rem;
}

.dama-game .dama-status {
  margin: 0 0 0.8rem;
  min-height: 1.45rem;
  padding: 0.5rem 0.72rem;
  border-radius: 11px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.9);
  color: #0f3640;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.dama-game .dama-depth-info {
  margin: -0.35rem 0 0.85rem;
  min-height: 1.2rem;
  color: #485560;
  font-size: 0.82rem;
  font-weight: 600;
}

.dama-game #stats {
  margin: 0 0 0.9rem;
  border-collapse: collapse;
}

.dama-game #stats td,
.dama-game #stats th {
  border: 1px solid #333;
  padding: 4px 6px;
  text-align: center;
  background: #fff;
}

.dama-game .counter {
  display: inline-block;
  width: 32px;
  height: 28px;
  line-height: 28px;
  font-family: "Courier New", monospace;
  font-size: 20px;
  color: #0f0;
  background: #222;
  border-radius: 4px;
  box-shadow:
    inset 0 2px 2px rgba(255, 255, 255, 0.2),
    inset 0 -2px 3px rgba(0, 0, 0, 0.7),
    0 4px 6px rgba(0, 0, 0, 0.6);
  perspective: 200px;
}

.dama-game .counter.flip {
  animation: flip 0.4s ease;
}

.dama-game #board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  border: 2px solid #333;
  box-shadow: 0 8px 8px rgba(0, 0, 0, 0.4);
  width: min(100%, 480px);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  gap: 0;
  overflow: hidden;
  background: #8b5e33;
  transform-origin: center;
  transition: transform 0.25s ease;
  will-change: transform;
}

.dama-game #board.board-rotated {
  transform: rotate(180deg);
}

.dama-game .cell {
  width: 100%;
  height: 100%;
  position: relative;
}

.dama-game .cell.move-target {
  box-shadow: inset 0 0 0 3px rgba(15, 109, 104, 0.75);
}

.dama-game .cell.move-target::after {
  content: "";
  position: absolute;
  width: 28%;
  height: 28%;
  border-radius: 50%;
  background: rgba(15, 109, 104, 0.75);
  top: 36%;
  left: 36%;
  pointer-events: none;
}

.dama-game .light {
  background: linear-gradient(135deg, #f9f3e5, #d6c8a0);
}

.dama-game .dark {
  background: linear-gradient(135deg, #b78a60, #8b5e33);
}

.dama-game .piece {
  width: 66%;
  height: 66%;
  border-radius: 50%;
  position: absolute;
  top: 17%;
  left: 17%;
  cursor: move;
  box-shadow:
    inset 0 2px 2px rgba(255, 255, 255, 0.5),
    inset 0 -2px 2px rgba(0, 0, 0, 0.5),
    0 2px 2px rgba(0, 0, 0, 0.5);
}

.dama-game .piece.selected-piece {
  outline: 3px solid rgba(15, 109, 104, 0.85);
  outline-offset: 1px;
}

.dama-game .piece.can-move-piece {
  outline: 3px solid rgba(186, 143, 63, 0.86);
  outline-offset: 1px;
  animation: damaPulse 1.35s ease-in-out infinite;
}

.dama-game .piece.last-computer-piece {
  outline: 3px solid rgba(255, 214, 76, 0.96);
  outline-offset: 2px;
  box-shadow:
    inset 0 2px 2px rgba(255, 255, 255, 0.45),
    inset 0 -2px 2px rgba(0, 0, 0, 0.55),
    0 0 0 3px rgba(255, 214, 76, 0.34),
    0 4px 10px rgba(0, 0, 0, 0.46);
}

.dama-game .white-piece {
  background: linear-gradient(#fff, #dcdcdc);
}

.dama-game .black-piece {
  background: linear-gradient(#555, #000);
}

.dama-game .king {
  box-shadow:
    inset 0 2px 2px rgba(255, 255, 255, 0.6),
    inset 0 -2px 2px rgba(0, 0, 0, 0.6),
    0 2px 2px rgba(0, 0, 0, 0.6),
    0 6px 4px rgba(0, 0, 0, 0.6);
}

.dama-game .king::after {
  content: "";
  position: absolute;
  top: 4px;
  left: 4px;
  right: 4px;
  bottom: 4px;
  border-radius: 50%;
  background: inherit;
  box-shadow:
    inset 0 2px 2px rgba(255, 255, 255, 0.6),
    inset 0 -2px 2px rgba(0, 0, 0, 0.6);
}

.ttt-game {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(15, 109, 104, 0.28);
  background:
    radial-gradient(120% 90% at 100% 0%, rgba(15, 109, 104, 0.12), transparent 55%),
    radial-gradient(120% 90% at 0% 100%, rgba(186, 143, 63, 0.12), transparent 52%),
    linear-gradient(170deg, #ffffff 0%, #f4faf9 100%);
  padding: 1rem;
  box-shadow: 0 12px 30px rgba(11, 30, 40, 0.12);
}

.ttt-game::before {
  content: "";
  position: absolute;
  inset: -20% auto auto -12%;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(15, 109, 104, 0.18) 0%, rgba(15, 109, 104, 0) 70%);
  pointer-events: none;
}

.ttt-game::after {
  content: "";
  position: absolute;
  inset: auto -12% -22% auto;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(186, 143, 63, 0.16) 0%, rgba(186, 143, 63, 0) 72%);
  pointer-events: none;
}

.ttt-setup {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.75rem;
  align-items: end;
  padding: 0.72rem;
  border: 1px solid rgba(15, 109, 104, 0.18);
  border-radius: 14px;
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.94), rgba(246, 251, 250, 0.94));
}

.ttt-control {
  display: grid;
  gap: 0.35rem;
}

.ttt-control label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
}

.ttt-control select {
  border: 1px solid rgba(15, 109, 104, 0.28);
  border-radius: 10px;
  padding: 0.38rem 0.5rem;
  font: inherit;
  color: #18313c;
  background: linear-gradient(170deg, #ffffff, #eef6f5);
}

.ttt-control-action {
  justify-items: start;
}

.ttt-status {
  position: relative;
  z-index: 1;
  margin: 0.85rem 0 0;
  color: #0f3542;
  font-weight: 600;
  padding: 0.52rem 0.72rem;
  border: 1px solid rgba(15, 109, 104, 0.18);
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.86);
}

.ttt-status.celebrate,
.ttt-status.game-status-celebrate {
  color: #0f6d68;
  animation: game-status-celebrate 0.5s ease-in-out infinite alternate;
  border-color: rgba(15, 109, 104, 0.4);
  box-shadow:
    0 0 0 2px rgba(255, 226, 138, 0.36),
    0 12px 18px rgba(15, 109, 104, 0.22);
}

.ttt-warning {
  position: relative;
  z-index: 1;
  margin: 0.3rem 0 0;
  min-height: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #b91c1c;
  opacity: 0;
  transition: opacity 0.2s ease, transform 0.2s ease;
  transform: translateY(-2px);
}

.ttt-warning.visible {
  opacity: 1;
  transform: translateY(0);
  animation: ttt-warning-pulse 0.9s ease 1;
}

.ttt-board {
  position: relative;
  z-index: 1;
  margin: 0.95rem auto 0;
  padding: 0.42rem;
  width: min(100%, 360px);
  aspect-ratio: 1 / 1;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(3, 1fr);
  gap: 0.45rem;
  border-radius: 18px;
  border: 1px solid rgba(15, 109, 104, 0.22);
  background:
    linear-gradient(165deg, rgba(255, 255, 255, 0.95), rgba(239, 247, 246, 0.98)),
    linear-gradient(45deg, rgba(15, 109, 104, 0.08), rgba(186, 143, 63, 0.08));
  box-shadow:
    inset 0 2px 3px rgba(255, 255, 255, 0.8),
    0 12px 18px rgba(15, 109, 104, 0.12);
}

.ttt-cell {
  border: 1px solid rgba(15, 109, 104, 0.24);
  border-radius: 16px;
  background: linear-gradient(160deg, #ffffff 0%, #edf4f5 100%);
  color: #26424d;
  font-family: "Syne", sans-serif;
  font-size: clamp(1.95rem, 6.7vw, 2.85rem);
  font-weight: 700;
  cursor: pointer;
  transition:
    transform 0.12s ease,
    box-shadow 0.12s ease,
    border-color 0.12s ease,
    color 0.12s ease;
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.8);
  box-shadow:
    inset 0 2px 2px rgba(255, 255, 255, 0.85),
    inset 0 -2px 3px rgba(20, 36, 46, 0.11);
}

.ttt-cell:hover:not(:disabled),
.ttt-cell:focus-visible:not(:disabled) {
  transform: translateY(-2px);
  border-color: rgba(15, 109, 104, 0.44);
  box-shadow:
    0 10px 14px rgba(15, 109, 104, 0.18),
    inset 0 2px 2px rgba(255, 255, 255, 0.9),
    inset 0 -2px 3px rgba(20, 36, 46, 0.12);
  outline: none;
}

.ttt-cell:disabled {
  cursor: default;
  opacity: 1;
}

.ttt-cell.filled {
  border-color: rgba(15, 109, 104, 0.35);
}

.ttt-cell.symbol-x {
  color: #0f6d68;
}

.ttt-cell.symbol-o {
  color: #b07f2c;
}

.ttt-cell.just-played {
  animation: ttt-pop 0.28s ease;
}

.ttt-cell.win {
  border-color: rgba(186, 143, 63, 0.7);
  background: linear-gradient(165deg, #fff8e5 0%, #f5e6c4 100%);
  box-shadow:
    0 0 0 2px rgba(186, 143, 63, 0.22),
    0 9px 14px rgba(186, 143, 63, 0.2),
    inset 0 2px 2px rgba(255, 255, 255, 0.85),
    inset 0 -2px 3px rgba(126, 89, 26, 0.2);
  animation: ttt-win-pulse 0.9s ease-in-out infinite alternate;
}

.rev-game {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(15, 109, 104, 0.28);
  background:
    radial-gradient(110% 80% at 100% 0%, rgba(15, 109, 104, 0.13), transparent 55%),
    radial-gradient(90% 80% at 0% 100%, rgba(186, 143, 63, 0.14), transparent 60%),
    linear-gradient(168deg, #ffffff 0%, #f3faf8 100%);
  padding: 1rem;
  box-shadow: 0 14px 32px rgba(11, 30, 40, 0.13);
}

.rev-setup {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  align-items: end;
  padding: 0.72rem;
  border-radius: 14px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.95), rgba(244, 251, 249, 0.95));
}

.rev-control {
  display: grid;
  gap: 0.34rem;
}

.rev-control label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink);
}

.rev-control select {
  border: 1px solid rgba(15, 109, 104, 0.28);
  border-radius: 10px;
  padding: 0.38rem 0.52rem;
  font: inherit;
  color: #18313c;
  background: linear-gradient(170deg, #ffffff, #eef6f5);
}

.rev-control-action {
  justify-items: start;
}

.rev-metrics {
  margin-top: 0.8rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.6rem;
}

.rev-score-card {
  display: grid;
  gap: 0.25rem;
  padding: 0.62rem 0.72rem;
  border-radius: 12px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.88);
}

.rev-score-card span {
  font-size: 0.78rem;
  color: var(--ink-soft);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.rev-score-card strong {
  font-size: 1.35rem;
  line-height: 1;
  color: #153542;
}

.rev-depth,
.rev-status {
  margin: 0.7rem 0 0;
  padding: 0.5rem 0.72rem;
  border-radius: 11px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.9);
  color: #0f3542;
}

.rev-depth {
  font-size: 0.82rem;
}

.rev-status {
  font-size: 0.9rem;
  font-weight: 600;
}

.rev-status.celebrate,
.rev-status.game-status-celebrate,
.c4-status.celebrate,
.c4-status.game-status-celebrate,
.mm-status.celebrate,
.mm-status.game-status-celebrate,
.dama-status.game-status-celebrate,
.hex-status.game-status-celebrate,
.gm-status.game-status-celebrate,
.gm-status.celebrate {
  color: #0f6d68;
  border-color: rgba(15, 109, 104, 0.42);
  box-shadow:
    0 0 0 2px rgba(255, 226, 138, 0.36),
    0 12px 18px rgba(15, 109, 104, 0.22);
  animation: game-status-celebrate 0.5s ease-in-out infinite alternate;
}

.game-celebration-host {
  position: relative;
  overflow: hidden;
}

.game-celebration-overlay {
  position: absolute;
  inset: 0;
  z-index: 15;
  display: grid;
  place-items: center;
  pointer-events: none;
  opacity: 0;
  transform: scale(0.96);
}

.game-celebration-overlay.active {
  opacity: 1;
  animation: game-celebration-fade 3.1s ease-out forwards;
}

.game-celebration-backdrop {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 25% 20%, rgba(255, 232, 170, 0.66), rgba(255, 232, 170, 0) 45%),
    radial-gradient(circle at 80% 75%, rgba(15, 109, 104, 0.52), rgba(15, 109, 104, 0) 48%),
    rgba(8, 28, 35, 0.2);
  animation: game-celebration-pulse 0.48s ease-in-out 4 alternate;
}

.game-celebration-rays {
  position: absolute;
  width: 140%;
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    rgba(255, 226, 142, 0.35),
    rgba(255, 226, 142, 0.04) 12%,
    rgba(83, 210, 197, 0.32) 24%,
    rgba(83, 210, 197, 0.03) 36%,
    rgba(255, 226, 142, 0.35) 50%,
    rgba(255, 226, 142, 0.04) 62%,
    rgba(83, 210, 197, 0.32) 74%,
    rgba(83, 210, 197, 0.03) 86%,
    rgba(255, 226, 142, 0.35) 100%
  );
  filter: blur(1px);
  animation: game-celebration-spin 2.1s linear infinite;
}

.game-celebration-ring {
  position: absolute;
  width: clamp(170px, 42vw, 390px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  border: 3px solid rgba(255, 232, 170, 0.72);
  box-shadow:
    0 0 0 7px rgba(255, 232, 170, 0.22),
    0 0 28px rgba(255, 232, 170, 0.45);
  animation: game-celebration-ring 1.3s ease-out infinite;
}

.game-celebration-text {
  position: relative;
  z-index: 1;
  margin: 0;
  padding: 0.35rem 0.9rem;
  text-align: center;
  font-family: "Syne", "Segoe UI", sans-serif;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: clamp(1.2rem, 4.7vw, 2.4rem);
  color: #fff8de;
  text-shadow:
    0 2px 0 rgba(8, 18, 30, 0.7),
    0 0 18px rgba(255, 230, 148, 0.72),
    0 0 38px rgba(83, 210, 197, 0.5);
  transform: scale(0.85) rotate(-1deg);
  opacity: 0;
}

.game-celebration-overlay.outcome-ai-loss .game-celebration-backdrop {
  background:
    radial-gradient(circle at 20% 22%, rgba(255, 173, 119, 0.65), rgba(255, 173, 119, 0) 45%),
    radial-gradient(circle at 78% 74%, rgba(170, 44, 56, 0.56), rgba(170, 44, 56, 0) 50%),
    rgba(45, 18, 20, 0.24);
}

.game-celebration-overlay.outcome-ai-loss .game-celebration-rays {
  background: conic-gradient(
    from 0deg,
    rgba(255, 185, 122, 0.42),
    rgba(255, 185, 122, 0.06) 14%,
    rgba(219, 102, 102, 0.38) 28%,
    rgba(219, 102, 102, 0.05) 42%,
    rgba(255, 185, 122, 0.42) 58%,
    rgba(255, 185, 122, 0.06) 72%,
    rgba(219, 102, 102, 0.38) 86%,
    rgba(219, 102, 102, 0.05) 100%
  );
}

.game-celebration-overlay.outcome-ai-loss .game-celebration-ring {
  border-color: rgba(255, 185, 122, 0.76);
  box-shadow:
    0 0 0 7px rgba(255, 185, 122, 0.24),
    0 0 32px rgba(219, 102, 102, 0.52);
}

.game-celebration-overlay.outcome-ai-loss .game-celebration-text {
  color: #fff0dd;
  text-shadow:
    0 2px 0 rgba(45, 18, 20, 0.72),
    0 0 18px rgba(255, 185, 122, 0.76),
    0 0 36px rgba(219, 102, 102, 0.56);
}

.game-celebration-overlay.outcome-draw .game-celebration-backdrop {
  background:
    radial-gradient(circle at 24% 22%, rgba(168, 214, 247, 0.58), rgba(168, 214, 247, 0) 44%),
    radial-gradient(circle at 82% 74%, rgba(134, 158, 201, 0.5), rgba(134, 158, 201, 0) 49%),
    rgba(14, 27, 43, 0.24);
}

.game-celebration-overlay.outcome-draw .game-celebration-rays {
  background: conic-gradient(
    from 0deg,
    rgba(183, 225, 255, 0.38),
    rgba(183, 225, 255, 0.05) 12%,
    rgba(140, 187, 232, 0.34) 24%,
    rgba(140, 187, 232, 0.05) 36%,
    rgba(183, 225, 255, 0.38) 50%,
    rgba(183, 225, 255, 0.05) 62%,
    rgba(140, 187, 232, 0.34) 74%,
    rgba(140, 187, 232, 0.05) 86%,
    rgba(183, 225, 255, 0.38) 100%
  );
}

.game-celebration-overlay.outcome-draw .game-celebration-ring {
  border-color: rgba(186, 228, 255, 0.74);
  box-shadow:
    0 0 0 7px rgba(186, 228, 255, 0.22),
    0 0 30px rgba(140, 187, 232, 0.48);
}

.game-celebration-overlay.outcome-draw .game-celebration-text {
  color: #ecf7ff;
  text-shadow:
    0 2px 0 rgba(12, 25, 44, 0.76),
    0 0 18px rgba(186, 228, 255, 0.72),
    0 0 36px rgba(140, 187, 232, 0.54);
}

.game-celebration-overlay.active .game-celebration-text {
  animation: game-celebration-text 0.45s ease-out forwards, game-celebration-throb 0.75s ease-in-out 0.5s infinite alternate;
}

.game-celebration-host.is-celebrating {
  animation: game-celebration-shake 0.24s linear 9;
}

.rev-board {
  margin: 0.9rem auto 0;
  width: min(100%, 560px);
  max-width: 560px;
  aspect-ratio: 1 / 1;
  min-height: 280px;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  gap: 0.16rem;
  padding: 0.3rem;
  border-radius: 16px;
  border: 1px solid rgba(15, 109, 104, 0.3);
  background: linear-gradient(165deg, #0e5d57, #0a413f);
  box-shadow:
    inset 0 2px 4px rgba(255, 255, 255, 0.2),
    0 14px 20px rgba(9, 30, 34, 0.3);
}

@supports not (aspect-ratio: 1 / 1) {
  .rev-board {
    height: 560px;
  }
}

.rev-cell {
  border: none;
  border-radius: 7px;
  position: relative;
  cursor: pointer;
  transition: transform 0.08s ease, box-shadow 0.08s ease;
}

.rev-cell.light {
  background: linear-gradient(160deg, #1b8379, #0f6f67);
}

.rev-cell.dark {
  background: linear-gradient(160deg, #0f6f67, #0d5a54);
}

.rev-cell:hover:not(:disabled),
.rev-cell:focus-visible:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: inset 0 0 0 2px rgba(255, 255, 255, 0.32);
  outline: none;
}

.rev-cell:disabled {
  cursor: default;
}

.rev-cell.legal::after {
  content: "";
  position: absolute;
  width: 22%;
  aspect-ratio: 1;
  border-radius: 50%;
  top: 39%;
  left: 39%;
  background: rgba(255, 239, 173, 0.82);
  box-shadow: 0 0 0 2px rgba(12, 52, 50, 0.55);
}

.rev-cell.last-move {
  box-shadow: inset 0 0 0 3px rgba(255, 219, 102, 0.85);
}

.rev-disc {
  position: absolute;
  width: 76%;
  aspect-ratio: 1;
  border-radius: 50%;
  top: 12%;
  left: 12%;
  box-shadow:
    inset 0 2px 3px rgba(255, 255, 255, 0.35),
    inset 0 -2px 4px rgba(0, 0, 0, 0.35),
    0 2px 5px rgba(0, 0, 0, 0.35);
}

.rev-disc.black {
  background: linear-gradient(160deg, #2e2e2e, #060606);
}

.rev-disc.white {
  background: linear-gradient(160deg, #ffffff, #dddddd);
}

.c4-game {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(15, 109, 104, 0.28);
  background:
    radial-gradient(120% 95% at 100% 0%, rgba(15, 109, 104, 0.12), transparent 56%),
    radial-gradient(90% 90% at 0% 100%, rgba(186, 143, 63, 0.12), transparent 58%),
    linear-gradient(168deg, #ffffff 0%, #f3faf8 100%);
  padding: 1rem;
  box-shadow: 0 14px 32px rgba(11, 30, 40, 0.13);
}

.c4-setup {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  align-items: end;
  padding: 0.72rem;
  border-radius: 14px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.95), rgba(244, 251, 249, 0.95));
}

.c4-control {
  display: grid;
  gap: 0.34rem;
}

.c4-control label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink);
}

.c4-control select {
  border: 1px solid rgba(15, 109, 104, 0.28);
  border-radius: 10px;
  padding: 0.38rem 0.52rem;
  font: inherit;
  color: #18313c;
  background: linear-gradient(170deg, #ffffff, #eef6f5);
}

.c4-control-action {
  justify-items: start;
}

.c4-status,
.c4-depth {
  margin: 0.7rem 0 0;
  padding: 0.5rem 0.72rem;
  border-radius: 11px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.9);
  color: #0f3542;
}

.c4-status {
  font-size: 0.9rem;
  font-weight: 600;
}

.c4-depth {
  font-size: 0.82rem;
}

.c4-board {
  margin: 0.85rem auto 0;
  width: min(100%, 560px);
  max-width: 560px;
  aspect-ratio: 7 / 6;
  min-height: 320px;
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  grid-template-rows: repeat(6, 1fr);
  gap: 0.26rem;
  padding: 0.32rem;
  border-radius: 16px;
  border: 1px solid rgba(10, 63, 111, 0.45);
  background: linear-gradient(165deg, #1a64b1, #0f3f75);
  box-shadow:
    inset 0 2px 4px rgba(255, 255, 255, 0.2),
    0 14px 20px rgba(9, 30, 34, 0.3);
}

.c4-cell {
  border: none;
  border-radius: 8px;
  position: relative;
  cursor: pointer;
  background: transparent;
  padding: 0;
  transition: transform 0.08s ease;
}

.c4-cell::before {
  content: "";
  position: absolute;
  inset: 9%;
  border-radius: 50%;
  background: radial-gradient(circle at 34% 28%, #fdfefe, #dce8f0);
  box-shadow:
    inset 0 2px 3px rgba(255, 255, 255, 0.8),
    inset 0 -2px 4px rgba(7, 30, 47, 0.28);
}

.c4-cell:hover:not(:disabled),
.c4-cell:focus-visible:not(:disabled) {
  transform: translateY(-1px);
  outline: none;
}

.c4-cell.playable::before {
  box-shadow:
    inset 0 2px 3px rgba(255, 255, 255, 0.85),
    inset 0 -2px 4px rgba(7, 30, 47, 0.28),
    0 0 0 2px rgba(255, 224, 118, 0.58),
    0 0 10px rgba(255, 224, 118, 0.45);
}

.c4-cell:disabled {
  cursor: default;
}

.c4-disc {
  position: absolute;
  width: 76%;
  aspect-ratio: 1;
  border-radius: 50%;
  top: 12%;
  left: 12%;
  transform: scale(0.08);
  opacity: 0;
  box-shadow:
    inset 0 2px 3px rgba(255, 255, 255, 0.38),
    inset 0 -2px 4px rgba(0, 0, 0, 0.35),
    0 2px 5px rgba(0, 0, 0, 0.35);
  transition: transform 0.14s ease-out, opacity 0.14s ease-out;
}

.c4-cell.p1 .c4-disc {
  opacity: 1;
  transform: scale(1);
  background: linear-gradient(160deg, #ff6a64, #c91f1f);
}

.c4-cell.p2 .c4-disc {
  opacity: 1;
  transform: scale(1);
  background: linear-gradient(160deg, #ffe67f, #d6a610);
}

.c4-cell.last-move .c4-disc {
  box-shadow:
    inset 0 2px 3px rgba(255, 255, 255, 0.4),
    inset 0 -2px 4px rgba(0, 0, 0, 0.35),
    0 0 0 3px rgba(255, 236, 156, 0.72),
    0 0 12px rgba(255, 236, 156, 0.55);
}

@supports not (aspect-ratio: 7 / 6) {
  .c4-board {
    height: 480px;
  }
}

.gm-game {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(15, 109, 104, 0.28);
  background:
    radial-gradient(110% 92% at 100% 0%, rgba(15, 109, 104, 0.12), transparent 56%),
    radial-gradient(95% 90% at 0% 100%, rgba(186, 143, 63, 0.12), transparent 58%),
    linear-gradient(168deg, #ffffff 0%, #f3faf8 100%);
  padding: 1rem;
  box-shadow: 0 14px 32px rgba(11, 30, 40, 0.13);
}

.gm-setup {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(132px, 1fr));
  gap: 0.62rem;
  align-items: end;
  padding: 0.66rem;
  border-radius: 14px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.95), rgba(244, 251, 249, 0.95));
}

.gm-control {
  display: grid;
  gap: 0.34rem;
  min-width: 0;
}

.gm-control label {
  font-size: 0.79rem;
  font-weight: 600;
  color: var(--ink);
}

.gm-control select {
  border: 1px solid rgba(15, 109, 104, 0.28);
  border-radius: 10px;
  padding: 0.32rem 0.48rem;
  min-height: 36px;
  font-size: 0.95rem;
  font: inherit;
  color: #18313c;
  background: linear-gradient(170deg, #ffffff, #eef6f5);
  width: 100%;
  min-width: 0;
}

.gm-control-action {
  justify-items: end;
  align-self: end;
}

.gm-control-action .btn {
  min-height: 38px;
  padding: 0.54rem 0.9rem;
  font-size: 0.82rem;
  white-space: nowrap;
}

.gm-status,
.gm-info {
  margin: 0.7rem 0 0;
  padding: 0.5rem 0.72rem;
  border-radius: 11px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.9);
  color: #0f3542;
}

.gm-status {
  font-size: 0.9rem;
  font-weight: 600;
}

.gm-info {
  font-size: 0.82rem;
}

.gm-board-shell {
  margin-top: 0.75rem;
  border-radius: 14px;
  border: 1px solid rgba(15, 109, 104, 0.22);
  background:
    linear-gradient(170deg, rgba(255, 255, 255, 0.95), rgba(238, 248, 247, 0.95)),
    linear-gradient(45deg, rgba(15, 109, 104, 0.06), rgba(186, 143, 63, 0.08));
  padding: 0.56rem;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
}

.gm-board {
  --gm-cell-size: 1.56rem;
  width: min(100%, 680px);
  min-width: calc(var(--gm-size, 13) * 1.56rem);
  min-height: calc(var(--gm-size, 13) * 1.56rem);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(var(--gm-size, 13), var(--gm-cell-size));
  grid-template-rows: repeat(var(--gm-size, 13), var(--gm-cell-size));
  grid-auto-rows: 1fr;
  gap: 0.18rem;
  border-radius: 12px;
  background:
    linear-gradient(135deg, rgba(9, 44, 62, 0.1), rgba(8, 45, 38, 0.06)),
    linear-gradient(170deg, #f7fcfb, #e9f4f2);
  border: 1px solid rgba(17, 66, 89, 0.18);
  padding: 0.3rem;
}

.gm-cell {
  border: 1px solid rgba(17, 66, 89, 0.14);
  border-radius: 8px;
  background: linear-gradient(155deg, #ffffff 0%, #ecf5f3 100%);
  aspect-ratio: 1 / 1;
  width: var(--gm-cell-size);
  height: var(--gm-cell-size);
  min-width: var(--gm-cell-size);
  min-height: var(--gm-cell-size);
  display: grid;
  place-items: center;
  cursor: pointer;
  touch-action: manipulation;
  padding: 0;
  transition:
    transform 0.11s ease,
    border-color 0.11s ease,
    box-shadow 0.11s ease,
    background 0.11s ease;
}

.gm-cell.playable:hover,
.gm-cell.playable:focus-visible {
  transform: translateY(-1px);
  border-color: rgba(15, 109, 104, 0.5);
  box-shadow: 0 0 0 2px rgba(15, 109, 104, 0.15);
  outline: none;
}

.gm-cell:disabled {
  cursor: default;
}

.gm-piece {
  width: 72%;
  aspect-ratio: 1;
  border-radius: 50%;
  transform: scale(0.08);
  opacity: 0;
  box-shadow:
    inset 0 2px 3px rgba(255, 255, 255, 0.32),
    inset 0 -2px 3px rgba(0, 0, 0, 0.35),
    0 2px 5px rgba(0, 0, 0, 0.28);
  transition: transform 0.13s ease-out, opacity 0.13s ease-out;
}

.gm-cell.p1 .gm-piece {
  opacity: 1;
  transform: scale(1);
  background: linear-gradient(160deg, #3d4247, #0b0d0f);
}

.gm-cell.p2 .gm-piece {
  opacity: 1;
  transform: scale(1);
  background: linear-gradient(160deg, #ffffff, #dce2e8);
}

.gm-cell.last-move .gm-piece {
  box-shadow:
    inset 0 2px 3px rgba(255, 255, 255, 0.34),
    inset 0 -2px 3px rgba(0, 0, 0, 0.35),
    0 0 0 2px rgba(255, 232, 145, 0.95),
    0 0 12px rgba(255, 232, 145, 0.58);
}

.mm-game {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(15, 109, 104, 0.28);
  background:
    radial-gradient(110% 90% at 100% 0%, rgba(15, 109, 104, 0.12), transparent 56%),
    radial-gradient(95% 90% at 0% 100%, rgba(186, 143, 63, 0.12), transparent 58%),
    linear-gradient(168deg, #ffffff 0%, #f3faf8 100%);
  padding: 1rem;
  box-shadow: 0 14px 32px rgba(11, 30, 40, 0.13);
}

.mm-setup {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.62rem;
  align-items: end;
  padding: 0.62rem;
  border-radius: 14px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.95), rgba(244, 251, 249, 0.95));
}

.mm-control {
  display: grid;
  gap: 0.34rem;
  min-width: 0;
}

.mm-control-mode {
  grid-column: span 2;
}

.mm-control label {
  font-size: 0.79rem;
  font-weight: 600;
  color: var(--ink);
}

.mm-control select {
  border: 1px solid rgba(15, 109, 104, 0.28);
  border-radius: 10px;
  padding: 0.31rem 0.46rem;
  min-height: 36px;
  font-size: 0.95rem;
  font: inherit;
  color: #18313c;
  background: linear-gradient(170deg, #ffffff, #eef6f5);
  width: 100%;
  min-width: 0;
}

.mm-control-check {
  align-self: center;
}

.mm-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
  font-size: 0.78rem;
  font-weight: 600;
  line-height: 1.2;
  color: #123945;
}

.mm-checkbox input[type='checkbox'] {
  width: 1rem;
  height: 1rem;
  accent-color: #0f6d68;
  flex: 0 0 auto;
}

.mm-control-action {
  justify-items: end;
  align-self: end;
}

.mm-control-action .btn {
  min-height: 38px;
  padding: 0.54rem 0.9rem;
  font-size: 0.82rem;
  white-space: nowrap;
}

.mm-status,
.mm-meta {
  margin: 0.7rem 0 0;
  padding: 0.5rem 0.72rem;
  border-radius: 11px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.9);
  color: #0f3542;
}

.mm-status {
  font-size: 0.9rem;
  font-weight: 600;
}

.mm-meta {
  font-size: 0.82rem;
}

.mm-workspace {
  margin-top: 0.82rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.mm-mode-panel.hidden {
  display: none;
}

.mm-panel {
  border-radius: 14px;
  border: 1px solid rgba(15, 109, 104, 0.22);
  background: rgba(255, 255, 255, 0.92);
  padding: 0.78rem;
}

.mm-panel h3 {
  margin: 0;
  font-size: 1rem;
}

.mm-current-row {
  margin-top: 0.62rem;
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 0.45rem;
}

.mm-slot {
  border: 1px solid rgba(15, 109, 104, 0.25);
  border-radius: 12px;
  background: linear-gradient(160deg, #ffffff 0%, #edf4f5 100%);
  width: 100%;
  aspect-ratio: 1 / 1;
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: border-color 0.12s ease, box-shadow 0.12s ease, transform 0.12s ease;
}

.mm-slot.active {
  border-color: rgba(15, 109, 104, 0.62);
  box-shadow: 0 0 0 2px rgba(15, 109, 104, 0.2);
}

.mm-slot:hover:not(:disabled),
.mm-slot:focus-visible:not(:disabled) {
  transform: translateY(-1px);
  border-color: rgba(15, 109, 104, 0.52);
  outline: none;
}

.mm-slot:disabled {
  cursor: default;
}

.mm-readonly-row .mm-slot {
  cursor: default;
}

.mm-slot-placeholder {
  width: 56%;
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #f6f8f8, #d9e2e8);
  box-shadow: inset 0 1px 2px rgba(255, 255, 255, 0.72), inset 0 -2px 3px rgba(10, 24, 36, 0.2);
}

.mm-peg {
  width: 64%;
  aspect-ratio: 1;
  border-radius: 50%;
  position: relative;
  display: grid;
  place-items: center;
  box-shadow:
    inset 0 2px 2px rgba(255, 255, 255, 0.4),
    inset 0 -2px 3px rgba(0, 0, 0, 0.3),
    0 1px 3px rgba(0, 0, 0, 0.25);
}

.mm-peg.mm-peg-small {
  width: 18px;
  min-width: 18px;
}

.mm-peg-label {
  font-size: 0.74rem;
  line-height: 1;
  font-weight: 800;
  letter-spacing: 0.01em;
  text-shadow:
    0 1px 2px rgba(0, 0, 0, 0.45),
    0 0 1px rgba(255, 255, 255, 0.55);
  user-select: none;
  pointer-events: none;
}

.mm-peg-label-small {
  font-size: 0.58rem;
}

.mm-palette {
  margin-top: 0.7rem;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.45rem;
}

.mm-color-btn {
  border: 1px solid rgba(255, 255, 255, 0.75);
  border-radius: 999px;
  width: 100%;
  min-height: 36px;
  display: grid;
  place-items: center;
  font: inherit;
  cursor: pointer;
  box-shadow: 0 3px 8px rgba(8, 20, 31, 0.24), inset 0 2px 2px rgba(255, 255, 255, 0.38);
  transition: transform 0.12s ease, box-shadow 0.12s ease;
}

.mm-color-btn-label {
  font-size: 0.84rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0.01em;
  text-shadow:
    0 1px 2px rgba(0, 0, 0, 0.48),
    0 0 1px rgba(255, 255, 255, 0.5);
  user-select: none;
  pointer-events: none;
}

.mm-color-btn:hover:not(:disabled),
.mm-color-btn:focus-visible:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 6px 12px rgba(8, 20, 31, 0.28), inset 0 2px 2px rgba(255, 255, 255, 0.4);
  outline: none;
}

.mm-color-btn:disabled {
  cursor: default;
  filter: grayscale(0.22);
  opacity: 0.82;
}

.mm-actions {
  margin-top: 0.72rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.46rem;
}

.mm-actions .btn {
  min-height: 38px;
  font-size: 0.79rem;
}

.mm-feedback-form {
  margin-top: 0.68rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(130px, 1fr));
  gap: 0.5rem;
  padding: 0.56rem;
  border-radius: 12px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(248, 252, 251, 0.94);
}

.mm-history {
  margin-top: 0.62rem;
  display: grid;
  gap: 0.42rem;
}

.mm-history-empty {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.mm-history-row {
  border-radius: 11px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.94);
  padding: 0.4rem 0.54rem;
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr) minmax(88px, 120px);
  align-items: center;
  gap: 0.5rem;
}

.mm-history-index {
  font-size: 0.76rem;
  font-weight: 700;
  color: #1d4d5b;
}

.mm-history-guess {
  display: flex;
  flex-wrap: wrap;
  gap: 0.28rem;
}

.mm-history-feedback {
  justify-self: end;
}

.mm-feedback-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.2rem;
  min-width: 70px;
}

.mm-fb-dot {
  width: 11px;
  aspect-ratio: 1;
  border-radius: 50%;
  justify-self: center;
  box-shadow: inset 0 1px 1px rgba(255, 255, 255, 0.52), inset 0 -1px 2px rgba(0, 0, 0, 0.32);
}

.mm-fb-black {
  background: #111827;
}

.mm-fb-white {
  background: #f8fafc;
  border: 1px solid rgba(17, 24, 39, 0.3);
}

.mm-fb-none {
  font-size: 0.72rem;
  color: #54636e;
  font-weight: 700;
  padding-left: 0.25rem;
}

.mm-secret {
  margin-top: 0.72rem;
  border: 1px solid rgba(186, 143, 63, 0.4);
  border-radius: 12px;
  background: linear-gradient(170deg, rgba(255, 251, 239, 0.95), rgba(246, 251, 250, 0.95));
  padding: 0.55rem 0.7rem;
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.mm-secret strong {
  font-size: 0.82rem;
  color: #17424d;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.mm-secret-pegs {
  display: flex;
  gap: 0.28rem;
  flex-wrap: wrap;
}

.mm-secret.hidden {
  display: none;
}

.dl-game {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(15, 109, 104, 0.28);
  background:
    radial-gradient(110% 90% at 100% 0%, rgba(15, 109, 104, 0.12), transparent 55%),
    radial-gradient(95% 90% at 0% 100%, rgba(186, 143, 63, 0.12), transparent 58%),
    linear-gradient(168deg, #ffffff 0%, #f3faf8 100%);
  padding: 1rem;
  box-shadow: 0 14px 32px rgba(11, 30, 40, 0.13);
}

.dl-setup {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(155px, 1fr));
  gap: 0.68rem;
  align-items: end;
  padding: 0.68rem;
  border-radius: 14px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.95), rgba(244, 251, 249, 0.95));
}

.dl-control {
  display: grid;
  gap: 0.34rem;
  min-width: 0;
}

.dl-control label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--ink);
}

.dl-control select {
  border: 1px solid rgba(15, 109, 104, 0.28);
  border-radius: 10px;
  padding: 0.34rem 0.48rem;
  min-height: 36px;
  font: inherit;
  color: #18313c;
  background: linear-gradient(170deg, #ffffff, #eef6f5);
  width: 100%;
}

.dl-control-action {
  justify-items: end;
}

.dl-control-action .btn {
  min-height: 38px;
  white-space: nowrap;
}

.dl-status,
.dl-info {
  margin: 0.7rem 0 0;
  padding: 0.5rem 0.72rem;
  border-radius: 11px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.9);
  color: #0f3542;
}

.dl-status {
  font-size: 0.9rem;
  font-weight: 600;
}

.dl-info {
  font-size: 0.82rem;
}

.dl-metrics {
  margin-top: 0.68rem;
  display: grid;
  gap: 0.5rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.dl-metric {
  border-radius: 12px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.94);
  padding: 0.48rem 0.58rem;
  display: grid;
  gap: 0.16rem;
  justify-items: center;
}

.dl-metric span {
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #315461;
  font-weight: 700;
}

.dl-metric strong {
  font-family: "Cormorant Garamond", Georgia, serif;
  font-size: 1.4rem;
  color: #0f3a47;
  line-height: 1;
}

.dl-board-shell {
  margin-top: 0.75rem;
  border-radius: 14px;
  border: 1px solid rgba(15, 109, 104, 0.22);
  background:
    linear-gradient(170deg, rgba(255, 255, 255, 0.95), rgba(238, 248, 247, 0.95)),
    linear-gradient(45deg, rgba(15, 109, 104, 0.06), rgba(186, 143, 63, 0.08));
  padding: 0.56rem;
}

.dl-board {
  width: min(100%, 640px);
  margin: 0 auto;
  display: grid;
  gap: 0.16rem;
  aspect-ratio: 1 / 1;
}

.dl-dot-cell,
.dl-line-cell,
.dl-box {
  border-radius: 8px;
  display: grid;
  place-items: center;
}

.dl-dot-cell {
  background: rgba(255, 255, 255, 0.6);
}

.dl-dot {
  width: 34%;
  min-width: 6px;
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(160deg, #355463, #102b38);
  box-shadow: 0 1px 2px rgba(11, 30, 40, 0.4);
}

.dl-line-cell {
  background: rgba(255, 255, 255, 0.58);
}

.dl-line {
  border: none;
  border-radius: 999px;
  background: rgba(150, 174, 184, 0.4);
  padding: 0;
  margin: 0;
  transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.12s ease;
}

.dl-line-h {
  width: 100%;
  height: 34%;
}

.dl-line-v {
  width: 34%;
  height: 100%;
}

.dl-line.open {
  background: rgba(150, 174, 184, 0.34);
}

.dl-line.playable {
  cursor: pointer;
  background: rgba(15, 109, 104, 0.28);
}

.dl-line.playable:hover,
.dl-line.playable:focus-visible {
  transform: scale(1.06);
  background: rgba(15, 109, 104, 0.52);
  box-shadow: 0 0 0 2px rgba(15, 109, 104, 0.2);
  outline: none;
}

.dl-line:disabled {
  cursor: default;
}

.dl-line.p1 {
  background: linear-gradient(90deg, #0f7e77, #0a544f);
}

.dl-line.p2 {
  background: linear-gradient(90deg, #c89a45, #926726);
}

.dl-line.last-move {
  box-shadow: 0 0 0 2px rgba(255, 224, 146, 0.92), 0 0 12px rgba(255, 224, 146, 0.55);
}

.dl-box {
  border: 1px solid rgba(15, 109, 104, 0.12);
  background: rgba(255, 255, 255, 0.94);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.06em;
}

.dl-box.empty {
  color: transparent;
}

.dl-box.p1 {
  color: #0a4b47;
  background: linear-gradient(155deg, rgba(15, 109, 104, 0.2), rgba(255, 255, 255, 0.95));
  border-color: rgba(15, 109, 104, 0.38);
}

.dl-box.p2 {
  color: #5f400f;
  background: linear-gradient(155deg, rgba(186, 143, 63, 0.28), rgba(255, 255, 255, 0.95));
  border-color: rgba(186, 143, 63, 0.42);
}

.hex-game {
  position: relative;
  overflow: hidden;
  border-radius: 16px;
  border: 1px solid rgba(15, 109, 104, 0.28);
  background:
    radial-gradient(110% 90% at 100% 0%, rgba(15, 109, 104, 0.12), transparent 55%),
    radial-gradient(90% 90% at 0% 100%, rgba(186, 143, 63, 0.13), transparent 58%),
    linear-gradient(168deg, #ffffff 0%, #f3faf8 100%);
  padding: 1rem;
  box-shadow: 0 14px 32px rgba(11, 30, 40, 0.13);
}

.hex-setup {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  align-items: end;
  padding: 0.72rem;
  border-radius: 14px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: linear-gradient(155deg, rgba(255, 255, 255, 0.95), rgba(244, 251, 249, 0.95));
}

.hex-control {
  display: grid;
  gap: 0.34rem;
}

.hex-control label {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--ink);
}

.hex-control select {
  border: 1px solid rgba(15, 109, 104, 0.28);
  border-radius: 10px;
  padding: 0.38rem 0.52rem;
  font: inherit;
  color: #18313c;
  background: linear-gradient(170deg, #ffffff, #eef6f5);
}

.hex-control-check {
  align-self: center;
}

.hex-checkbox {
  display: inline-flex;
  align-items: center;
  gap: 0.48rem;
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1.2;
  color: #123945;
}

.hex-checkbox input[type='checkbox'] {
  width: 1rem;
  height: 1rem;
  accent-color: #0f6d68;
  flex: 0 0 auto;
}

.hex-control-action {
  display: grid;
  gap: 0.45rem;
  justify-items: start;
}

.hex-control-action .btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  filter: grayscale(0.25);
}

.hex-info,
.hex-status {
  margin: 0.7rem 0 0;
  padding: 0.5rem 0.72rem;
  border-radius: 11px;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.9);
  color: #0f3542;
}

.hex-info {
  font-size: 0.83rem;
}

.hex-status {
  font-size: 0.9rem;
  font-weight: 600;
}

.hex-legend {
  margin-top: 0.7rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.hex-legend-item {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.36rem 0.58rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  border: 1px solid rgba(15, 109, 104, 0.2);
  background: rgba(255, 255, 255, 0.92);
  color: #22414e;
}

.hex-dot {
  width: 0.72rem;
  aspect-ratio: 1;
  border-radius: 50%;
  display: inline-block;
}

.hex-dot-blue {
  background: linear-gradient(160deg, #5aa7ff, #1d5ed8);
}

.hex-dot-red {
  background: linear-gradient(160deg, #ff7b7b, #d33434);
}

.hex-board-shell {
  position: relative;
  margin-top: 0.78rem;
  border-radius: 14px;
  border: 1px solid rgba(15, 109, 104, 0.22);
  background:
    linear-gradient(170deg, rgba(255, 255, 255, 0.95), rgba(238, 248, 247, 0.95)),
    linear-gradient(45deg, rgba(15, 109, 104, 0.06), rgba(186, 143, 63, 0.08));
  padding: 0.45rem;
  overflow: auto;
}

.hex-board-shell::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  background:
    linear-gradient(to bottom, rgba(46, 123, 233, 0.78) 0 6px, transparent 6px calc(100% - 6px), rgba(46, 123, 233, 0.78) calc(100% - 6px) 100%),
    linear-gradient(to right, rgba(217, 73, 73, 0.78) 0 6px, transparent 6px calc(100% - 6px), rgba(217, 73, 73, 0.78) calc(100% - 6px) 100%),
    radial-gradient(circle at 0 0, rgba(217, 73, 73, 0.74) 0 10px, rgba(46, 123, 233, 0.74) 10px 20px, transparent 21px),
    radial-gradient(circle at 100% 0, rgba(46, 123, 233, 0.74) 0 10px, rgba(217, 73, 73, 0.74) 10px 20px, transparent 21px),
    radial-gradient(circle at 0 100%, rgba(46, 123, 233, 0.74) 0 10px, rgba(217, 73, 73, 0.74) 10px 20px, transparent 21px),
    radial-gradient(circle at 100% 100%, rgba(217, 73, 73, 0.74) 0 10px, rgba(46, 123, 233, 0.74) 10px 20px, transparent 21px);
}

.hex-board {
  width: 100%;
  min-width: 320px;
  min-height: 320px;
  display: block;
  margin: 0 auto;
}

.hex-edge-layer {
  pointer-events: none;
}

.hex-edge-line-blue,
.hex-edge-line-red {
  fill: none;
  stroke-linecap: round;
  opacity: 0.96;
  filter: drop-shadow(0 0 4px rgba(255, 255, 255, 0.3));
}

.hex-edge-line-blue {
  stroke: #2e7be9;
}

.hex-edge-line-red {
  stroke: #d94949;
}

.hex-corner-shared {
  stroke: rgba(255, 255, 255, 0.92);
  stroke-width: 1.5;
  filter: drop-shadow(0 0 6px rgba(255, 255, 255, 0.42));
}

.hex-cell-svg {
  stroke: rgba(11, 57, 56, 0.52);
  stroke-width: 1.5;
  transition:
    transform 0.12s ease,
    filter 0.12s ease,
    stroke 0.12s ease,
    stroke-width 0.12s ease;
}

.hex-cell-svg.hex-empty {
  fill: rgba(219, 236, 234, 0.96);
}

.hex-cell-svg.hex-blue {
  fill: linear-gradient(160deg, #63adff, #1d5ed8);
  fill: #2e7be9;
}

.hex-cell-svg.hex-red {
  fill: linear-gradient(160deg, #ff8e8e, #cb2e2e);
  fill: #d94949;
}

.hex-cell-svg.hex-legal {
  stroke: rgba(255, 214, 97, 0.96);
  stroke-width: 2.6;
  filter: drop-shadow(0 0 6px rgba(255, 214, 97, 0.55));
  cursor: pointer;
}

.hex-cell-svg.hex-legal:hover,
.hex-cell-svg.hex-legal:focus-visible {
  transform: translateY(-1px);
  stroke-width: 3;
  filter: drop-shadow(0 0 10px rgba(255, 214, 97, 0.72));
}

.hex-cell-svg.hex-last-move {
  stroke: rgba(255, 249, 195, 0.98);
  stroke-width: 3.2;
  filter: drop-shadow(0 0 8px rgba(255, 238, 150, 0.72));
}

.rules-list {
  margin: 0.8rem 0 0;
  padding-left: 1.1rem;
  color: var(--ink-soft);
  display: grid;
  gap: 0.45rem;
  line-height: 1.55;
  font-size: 0.9rem;
}

.books-actions {
  margin-top: 1rem;
}

.book-card {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.95rem;
  display: grid;
  grid-template-columns: minmax(140px, 210px) 1fr;
  gap: 1rem;
  align-items: start;
}

.book-cover-wrap {
  width: 100%;
  max-width: 210px;
}

.book-cover {
  width: 100%;
  height: auto;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: 0 14px 24px rgba(11, 30, 40, 0.18);
  object-fit: cover;
}

.book-body h3 {
  margin: 0;
  font-size: 1.22rem;
}

.book-year {
  margin: 0;
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--teal-deep);
  font-weight: 700;
}

.book-subtitle,
.book-description {
  margin: 0.45rem 0 0;
  line-height: 1.58;
  color: var(--ink-soft);
  font-size: 0.89rem;
}

.book-excerpt {
  margin: 0.7rem 0 0;
  padding: 0.7rem 0.8rem;
  border-left: 3px solid var(--gold);
  background: linear-gradient(170deg, #fbf7ee, #f7fbfb);
  color: #2a3942;
  border-radius: 0 10px 10px 0;
  font-size: 0.86rem;
  line-height: 1.55;
}

.book-tags {
  margin-top: 0.75rem;
}

.book-actions {
  margin-top: 0.8rem;
  display: flex;
  gap: 0.55rem;
  flex-wrap: wrap;
}

.feature-card,
.project-card {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 1rem;
  text-decoration: none;
  color: inherit;
  transition: transform var(--speed), box-shadow var(--speed), border-color var(--speed);
}

.feature-card:hover,
.feature-card:focus-visible,
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 14px 24px rgba(26, 45, 52, 0.12);
  border-color: rgba(15, 109, 104, 0.35);
  outline: none;
}

.feature-card h3,
.project-card h3 {
  margin: 0;
  font-size: 1.05rem;
}

.feature-card p,
.project-card p {
  margin: 0.5rem 0 0;
  line-height: 1.58;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.feature-grid-ovals {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.95rem;
}

.feature-oval {
  position: relative;
  min-height: 176px;
  border-radius: 24px;
  overflow: hidden;
  display: grid;
  align-content: end;
  isolation: isolate;
  background-image: linear-gradient(180deg, rgba(8, 18, 34, 0.2), rgba(8, 18, 34, 0.7));
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  padding: 1.05rem 1.15rem;
  border-color: rgba(255, 255, 255, 0.28);
}

.feature-oval::after {
  content: "";
  position: absolute;
  inset: 6px;
  border-radius: 18px;
  border: 1px solid rgba(255, 255, 255, 0.22);
  pointer-events: none;
}

.feature-oval h3,
.feature-oval p {
  position: relative;
  color: #f5f8ff;
  text-shadow: 0 2px 8px rgba(5, 10, 20, 0.6);
}

.feature-oval h3 {
  font-size: 1.08rem;
}

.feature-oval p {
  margin-top: 0.35rem;
  font-size: 0.84rem;
  line-height: 1.42;
}

.feature-oval:hover,
.feature-oval:focus-visible {
  transform: translateY(-4px);
  box-shadow: 0 18px 26px rgba(11, 28, 40, 0.22);
  border-color: rgba(255, 255, 255, 0.62);
}

.feature-esperienze {
  background-image: linear-gradient(180deg, rgba(8, 18, 34, 0.14), rgba(8, 18, 34, 0.78)), url("../img/home-esperienze.png");
}

.feature-competenze {
  background-image: linear-gradient(180deg, rgba(8, 18, 34, 0.14), rgba(8, 18, 34, 0.78)), url("../img/home-competenze.png");
}

.feature-formazione {
  background-image: linear-gradient(180deg, rgba(8, 18, 34, 0.14), rgba(8, 18, 34, 0.78)), url("../img/home-formazione.png");
}

.feature-libri {
  background-image: linear-gradient(180deg, rgba(8, 18, 34, 0.14), rgba(8, 18, 34, 0.78)), url("../img/home-libri.png");
}

.feature-storie {
  background-image: linear-gradient(180deg, rgba(8, 18, 34, 0.14), rgba(8, 18, 34, 0.78)), url("../img/home-storie.png");
}

.feature-giochi {
  background-image: linear-gradient(180deg, rgba(8, 18, 34, 0.14), rgba(8, 18, 34, 0.78)), url("../img/home-giochi.png");
}

.feature-contatti {
  background-image: linear-gradient(180deg, rgba(8, 18, 34, 0.14), rgba(8, 18, 34, 0.78)), url("../img/home-contatti.png");
}

.feature-matematica {
  background-image: linear-gradient(180deg, rgba(8, 18, 34, 0.14), rgba(8, 18, 34, 0.78)), url("../img/home-matematica.png");
}

.project-kicker {
  text-transform: uppercase;
  letter-spacing: 0.11em;
  font-size: 0.68rem;
  color: var(--teal-deep);
  margin: 0;
}

.inner-hero {
  background: linear-gradient(
      140deg,
      rgba(186, 143, 63, 0.12),
      rgba(255, 255, 255, 0.78)
    ),
    var(--card-strong);
}

.timeline {
  position: relative;
  padding-left: 1.2rem;
  display: grid;
  gap: 1rem;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0.1rem;
  top: 0.4rem;
  bottom: 0.4rem;
  width: 2px;
  background: linear-gradient(var(--gold), rgba(15, 109, 104, 0.4));
}

.timeline-item {
  position: relative;
  border: 1px solid var(--line);
  background: #fff;
  border-radius: 16px;
  padding: 0.9rem;
}

.timeline-item::before {
  content: "";
  position: absolute;
  width: 0.7rem;
  aspect-ratio: 1;
  border-radius: 50%;
  background: linear-gradient(130deg, var(--gold), var(--teal));
  left: -1.45rem;
  top: 1rem;
}

.timeline-date {
  margin: 0;
  font-size: 0.74rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--teal-deep);
  font-weight: 700;
}

.timeline-item h2,
.timeline-item h3 {
  margin: 0.36rem 0 0;
  font-size: 1.06rem;
}

.timeline-meta {
  margin: 0.32rem 0 0;
  color: var(--ink-soft);
  font-size: 0.83rem;
}

.timeline-item p {
  margin: 0.55rem 0 0;
  color: var(--ink-soft);
  line-height: 1.58;
  font-size: 0.9rem;
}

.compact .timeline-item p {
  margin-top: 0.48rem;
}

.chips {
  margin-top: 0.95rem;
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.chips span {
  font-size: 0.8rem;
  border-radius: 999px;
  padding: 0.44rem 0.78rem;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--ink-soft);
}

.skill-grid,
.cert-grid,
.contact-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.skill-card,
.cert-card,
.info-card,
.contact-card {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 0.95rem;
}

.skill-card h2,
.cert-card h3,
.contact-card h2,
.info-card h3 {
  margin: 0;
}

.skill-card ul,
.info-card ul {
  margin: 0.7rem 0 0;
  padding-left: 1.1rem;
  display: grid;
  gap: 0.42rem;
  color: var(--ink-soft);
  line-height: 1.5;
  font-size: 0.88rem;
}

.matrix {
  margin-top: 0.95rem;
  display: grid;
  gap: 0.75rem;
}

.matrix article p {
  margin: 0 0 0.35rem;
  font-size: 0.88rem;
  color: var(--ink-soft);
}

.bar {
  width: 100%;
  height: 11px;
  border-radius: 999px;
  background: linear-gradient(
    90deg,
    rgba(15, 109, 104, 0.15),
    rgba(186, 143, 63, 0.18)
  );
  overflow: hidden;
}

.bar span {
  display: block;
  width: var(--w);
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--teal), var(--gold));
}

.two-col {
  margin-top: 1rem;
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.contact-grid a {
  color: var(--teal-deep);
  text-decoration: none;
  font-weight: 600;
  word-break: break-word;
}

.contact-grid a:hover,
.contact-grid a:focus-visible {
  text-decoration: underline;
  outline: none;
}

.contact-card p,
.cert-card p {
  margin: 0.52rem 0 0;
  color: var(--ink-soft);
}

.cta-banner {
  border-radius: 16px;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, #fffaf0 0%, #f6fbfa 100%);
  padding: 1.1rem;
}

.cta-banner h2 {
  margin: 0.25rem 0 0;
  font-size: clamp(1.55rem, 4.1vw, 2.5rem);
  font-family: "Cormorant Garamond", Georgia, serif;
}

.cta-banner p {
  margin: 0.65rem 0 0;
  color: var(--ink-soft);
  line-height: 1.58;
}

.cta-banner .btn {
  margin-top: 1rem;
}

.site-footer {
  width: min(var(--max), calc(100% - 2.4rem));
  margin: 0 auto 1.2rem;
  text-align: center;
  color: var(--ink-soft);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

.page-views {
  display: inline-block;
  margin-left: 0.35rem;
  color: var(--teal-deep);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.reveal {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@keyframes drift {
  0%,
  100% {
    transform: translateY(0) translateX(0);
  }
  50% {
    transform: translateY(-12px) translateX(9px);
  }
}

@keyframes game-status-celebrate {
  0% {
    transform: scale(1);
    letter-spacing: 0.01em;
  }
  100% {
    transform: scale(1.03);
    letter-spacing: 0.04em;
  }
}

@keyframes game-celebration-fade {
  0% {
    opacity: 0;
    transform: scale(0.94);
  }
  8% {
    opacity: 1;
    transform: scale(1);
  }
  72% {
    opacity: 1;
    transform: scale(1);
  }
  100% {
    opacity: 0;
    transform: scale(1.06);
  }
}

@keyframes game-celebration-pulse {
  0% {
    opacity: 0.25;
  }
  100% {
    opacity: 0.95;
  }
}

@keyframes game-celebration-spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

@keyframes game-celebration-ring {
  0% {
    transform: scale(0.55);
    opacity: 0.9;
  }
  100% {
    transform: scale(1.15);
    opacity: 0;
  }
}

@keyframes game-celebration-text {
  0% {
    opacity: 0;
    transform: scale(0.62) rotate(-4deg);
  }
  70% {
    opacity: 1;
    transform: scale(1.08) rotate(1deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
}

@keyframes game-celebration-throb {
  0% {
    transform: scale(1);
  }
  100% {
    transform: scale(1.05);
  }
}

@keyframes game-celebration-shake {
  0% {
    transform: translateX(0);
  }
  25% {
    transform: translateX(-1px);
  }
  75% {
    transform: translateX(1px);
  }
  100% {
    transform: translateX(0);
  }
}

@keyframes ttt-pop {
  0% {
    transform: scale(0.78);
  }
  65% {
    transform: scale(1.08);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes ttt-win-pulse {
  0% {
    transform: translateY(0);
  }
  100% {
    transform: translateY(-1px);
  }
}

@keyframes ttt-warning-pulse {
  0% {
    transform: translateY(-2px);
  }
  35% {
    transform: translateY(0) scale(1.04);
  }
  100% {
    transform: translateY(0) scale(1);
  }
}

@keyframes damaPulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.04);
  }
}

@media (max-width: 1240px) and (min-width: 981px) {
  .site-header {
    gap: 0.45rem;
    padding: 0.52rem 0.6rem;
  }

  .brand-sub {
    display: none;
  }

  .brand-line {
    font-size: 0.9rem;
  }

  .main-nav a {
    font-size: 0.74rem;
    padding: 0.45rem 0.46rem;
  }

  .lang-switch {
    margin-left: 0.18rem;
    gap: 0.2rem;
  }

  .lang-switch a {
    font-size: 0.64rem;
    padding: 0.28rem 0.34rem;
  }
}

@media (max-width: 980px) {
  .site-header {
    border-radius: 18px;
    padding: 0.55rem;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .main-nav {
    position: absolute;
    top: calc(100% + 0.5rem);
    right: 0;
    left: 0;
    display: grid;
    gap: 0.2rem;
    padding: 0.5rem;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.96);
    border-radius: 14px;
    box-shadow: var(--shadow);
    transform-origin: top;
    transform: scaleY(0.95);
    opacity: 0;
    pointer-events: none;
    transition: transform var(--speed), opacity var(--speed);
  }

  .main-nav.is-open {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }

  .hero {
    grid-template-columns: 1fr;
  }

  .hero-photo-frame {
    width: min(100%, 230px);
  }

  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .feature-grid,
  .project-grid,
  .books-grid,
  .stories-grid,
  .game-grid,
  .skill-grid,
  .cert-grid,
  .contact-grid,
  .two-col {
    grid-template-columns: 1fr;
  }

  .book-card {
    grid-template-columns: 1fr;
  }

  .book-cover-wrap {
    max-width: 280px;
  }

  .lang-switch {
    margin-left: 0;
  }

  .rev-setup {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hex-setup {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .c4-setup {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .gm-setup {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dl-setup {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mm-setup {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .mm-control-mode {
    grid-column: span 1;
  }

  .mm-workspace {
    grid-template-columns: 1fr;
  }

  .mm-feedback-form {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .dl-metrics {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 620px) {
  .site-header,
  main,
  .site-footer {
    width: calc(100% - 1.2rem);
  }

  .section {
    padding: 0.95rem;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .btn {
    width: 100%;
  }

  .stats {
    grid-template-columns: 1fr;
  }

  .feature-oval {
    min-height: 160px;
    border-radius: 20px;
    padding: 0.9rem 0.95rem;
  }

  .feature-oval::after {
    inset: 5px;
    border-radius: 15px;
  }

  .timeline {
    padding-left: 0.8rem;
  }

  .timeline-item::before {
    left: -1.02rem;
  }

  .dama-game .dama-controls {
    flex-direction: column;
    align-items: flex-start;
  }

  .dama-game .dama-control-item {
    width: 100%;
    max-width: 240px;
  }

  .dama-game .dama-controls select {
    width: 100%;
    max-width: 220px;
  }

  .dama-game .dama-controls .btn {
    margin-left: 0;
    width: 100%;
    max-width: 220px;
  }

  .ttt-setup {
    grid-template-columns: 1fr;
  }

  .ttt-control-action .btn {
    width: 100%;
  }

  .rev-setup {
    grid-template-columns: 1fr;
  }

  .rev-control-action .btn {
    width: 100%;
  }

  .rev-board {
    width: min(100%, 460px);
  }

  .hex-setup {
    grid-template-columns: 1fr;
  }

  .hex-control-action .btn {
    width: 100%;
  }

  .c4-setup {
    grid-template-columns: 1fr;
  }

  .gm-setup {
    grid-template-columns: 1fr;
  }

  .dl-setup {
    grid-template-columns: 1fr;
  }

  .c4-control-action .btn {
    width: 100%;
  }

  .gm-control-action .btn {
    width: 100%;
  }

  .c4-board {
    width: min(100%, 460px);
  }

  .gm-board {
    width: max(100%, calc(var(--gm-size, 13) * 1.72rem));
    min-width: calc(var(--gm-size, 13) * 1.72rem);
    min-height: calc(var(--gm-size, 13) * 1.72rem);
    gap: 0.12rem;
    padding: 0.22rem;
  }

  .gm-cell {
    border-radius: 6px;
  }

  .dl-control-action .btn {
    width: 100%;
  }

  .dl-metrics {
    grid-template-columns: 1fr;
  }

  .mm-setup {
    grid-template-columns: 1fr;
  }

  .mm-control-mode {
    grid-column: span 1;
  }

  .mm-control-action .btn {
    width: 100%;
  }

  .mm-current-row {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .mm-feedback-form {
    grid-template-columns: 1fr;
  }
}