:root {
  --bg-a: #dceefc;
  --bg-b: #c4d9ee;
  --bg-c: #afc8e2;
  --panel: #f8fafc;
  --panel-strong: #ffffff;
  --text: #0b1322;
  --text-soft: #334155;
  --muted: #526176;
  --primary: #0f766e;
  --primary-deep: #0a4f5a;
  --accent: #f59e0b;
  --danger: #dc2626;
  --line: #dbe4ef;
  --ok: #16a34a;
  --focus-ring: rgba(14, 165, 164, 0.38);
  --hero-gradient-a: rgba(248, 250, 252, 0.96);
  --hero-gradient-b: rgba(255, 255, 255, 0.86);
  --panel-gradient-a: rgba(248, 250, 252, 0.98);
  --panel-gradient-b: rgba(240, 246, 251, 0.98);
  --surface: #ffffff;
  --surface-soft: #f8fbff;
  --surface-soft-alt: #f1fbf5;
  --shadow: rgba(3, 8, 20, 0.16);
  --checkbox-text: #223049;
  --status-label: #6b7280;
  --disabled-bg: #9ba8bb;
  --input-border: #c6d4e6;
  --input-bg: #ffffff;
  --feed-border: #cdd9e7;
  --message-border: #dce5f2;
  --message-local-border: #cde8d8;
  --tag-text: #6c2f00;
  --tag-bg: #ffedd5;
  --tag-border: #fdba74;
}

:root[data-theme='dark'] {
  --bg-a: #050b18;
  --bg-b: #0b1a2f;
  --bg-c: #132844;
  --panel: #0f1b2d;
  --panel-strong: #16243a;
  --text: #e5eefc;
  --text-soft: #c8d5ea;
  --muted: #9eb1cd;
  --line: #2a3e5d;
  --hero-gradient-a: rgba(14, 25, 41, 0.94);
  --hero-gradient-b: rgba(11, 20, 33, 0.92);
  --panel-gradient-a: rgba(16, 28, 46, 0.98);
  --panel-gradient-b: rgba(12, 21, 35, 0.98);
  --surface: #122238;
  --surface-soft: #1a2c45;
  --surface-soft-alt: #16333a;
  --shadow: rgba(0, 0, 0, 0.46);
  --checkbox-text: #d9e5fb;
  --status-label: #9fb0c7;
  --disabled-bg: #465a77;
  --input-border: #335173;
  --input-bg: #101f33;
  --feed-border: #2a415f;
  --message-border: #35506f;
  --message-local-border: #2f5d54;
  --tag-text: #ffd7a2;
  --tag-bg: #40240e;
  --tag-border: #8b4a18;
}

:root[data-theme='light'] {
  --bg-a: #dceefc;
  --bg-b: #c4d9ee;
  --bg-c: #afc8e2;
  --panel: #f8fbff;
  --panel-strong: #ffffff;
  --text: #0b1322;
  --muted: #4b6078;
  --line: #d2deec;
  --hero-gradient-a: rgba(255, 255, 255, 0.95);
  --hero-gradient-b: rgba(250, 252, 255, 0.92);
  --panel-gradient-a: rgba(255, 255, 255, 0.98);
  --panel-gradient-b: rgba(245, 250, 255, 0.98);
  --surface: #ffffff;
  --surface-soft: #f7faff;
  --surface-soft-alt: #eef9f2;
  --shadow: rgba(4, 16, 34, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: 'Outfit', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background:
    radial-gradient(circle at 16% 10%, rgba(245, 158, 11, 0.28), transparent 42%),
    radial-gradient(circle at 88% 18%, rgba(59, 130, 246, 0.24), transparent 34%),
    linear-gradient(130deg, var(--bg-a), var(--bg-b) 48%, var(--bg-c));
  transition: background 0.25s ease;
}

.landing {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.landing-card {
  width: min(980px, 100%);
  border-radius: 30px;
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: 0 28px 75px var(--shadow);
  background:
    radial-gradient(circle at 7% 20%, rgba(245, 158, 11, 0.35), transparent 32%),
    radial-gradient(circle at 88% 20%, rgba(14, 165, 164, 0.22), transparent 34%),
    linear-gradient(145deg, var(--hero-gradient-a), var(--hero-gradient-b));
  padding: clamp(20px, 4vw, 40px);
  display: grid;
  gap: 20px;
  animation: fade-up 0.7s ease both;
}

.landing-headline {
  font-family: 'Space Grotesk', 'Outfit', sans-serif;
  font-size: clamp(1.8rem, 4vw, 3.2rem);
  line-height: 1.05;
  max-width: 16ch;
}

.landing-copy {
  color: var(--muted);
  max-width: 54ch;
  margin: 0;
}

.landing-features {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.feature {
  border-radius: 14px;
  border: 1px solid var(--line);
  background: var(--surface);
  padding: 12px;
}

.feature h3 {
  font-family: 'Space Grotesk', 'Outfit', sans-serif;
  font-size: 1rem;
  margin-bottom: 4px;
}

.feature p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.landing-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: center;
}

.enter-btn {
  background: linear-gradient(135deg, #0f766e, #0c4a6e);
}

.ghost {
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--surface);
}

.shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 20px 40px;
  display: grid;
  gap: 16px;
}

.shell[hidden],
.landing[hidden] {
  display: none;
}

.hero {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--hero-gradient-a), var(--hero-gradient-b));
  border: 1px solid var(--line);
  border-radius: 22px;
  padding: 20px;
  box-shadow: 0 20px 55px var(--shadow);
  animation: fade-up 0.6s ease both;
}

.hero::after {
  content: '';
  position: absolute;
  right: -90px;
  top: -90px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(15, 118, 110, 0.2), transparent 68%);
  pointer-events: none;
}

.hero-row {
  display: flex;
  gap: 14px;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
}

h1,
h2,
h3 {
  margin: 0;
}

.title {
  font-family: 'Space Grotesk', 'Outfit', sans-serif;
  font-size: clamp(1.55rem, 2.5vw, 2.2rem);
  letter-spacing: 0.2px;
}

.subtitle {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.status-grid {
  margin-top: 14px;
  display: grid;
  grid-template-columns: repeat(3, minmax(130px, 1fr));
  gap: 10px;
}

.status-card {
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px 12px;
}

.status-label {
  margin: 0;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--status-label);
}

.status-value {
  margin: 4px 0 0;
  font-weight: 700;
  font-size: 1rem;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 2.2fr) minmax(300px, 1fr);
  gap: 14px;
}

.panel {
  background: linear-gradient(180deg, var(--panel-gradient-a), var(--panel-gradient-b));
  border-radius: 18px;
  border: 1px solid var(--line);
  box-shadow: 0 14px 40px var(--shadow);
  padding: 16px;
  animation: fade-up 0.7s ease both;
}

.stack {
  display: grid;
  gap: 12px;
}

.card-title {
  font-family: 'Space Grotesk', 'Outfit', sans-serif;
  font-size: 1.1rem;
}

.split {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.question {
  font-family: 'Space Grotesk', 'Outfit', sans-serif;
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
}

.meta {
  color: var(--muted);
  margin: 0;
}

.chip {
  display: inline-flex;
  align-items: center;
  border-radius: 999px;
  padding: 6px 10px;
  font-size: 0.84rem;
  border: 1px solid transparent;
  font-weight: 600;
}

.chip.waiting {
  color: #6b4f00;
  background: #fff7df;
  border-color: #f4df9c;
}

.chip.live {
  color: #14532d;
  background: #e8f9ef;
  border-color: #b9ebca;
}

form {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.join-form {
  justify-content: flex-end;
}

input[type='text'] {
  flex: 1 1 180px;
  min-height: 42px;
  border: 1px solid var(--input-border);
  border-radius: 11px;
  padding: 10px 12px;
  font: inherit;
  color: var(--text);
  background: var(--input-bg);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input[type='text']:focus {
  outline: none;
  border-color: #0ea5a4;
  box-shadow: 0 0 0 3px rgba(14, 165, 164, 0.2);
}

.checkbox-row {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: var(--surface);
  min-height: 42px;
  padding: 0 10px;
  color: var(--checkbox-text);
  font-size: 0.93rem;
  white-space: nowrap;
}

button {
  border: 0;
  border-radius: 11px;
  min-height: 42px;
  padding: 10px 14px;
  font: inherit;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  cursor: pointer;
  transition: transform 0.12s ease, filter 0.2s ease;
}

button:hover:not(:disabled) {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

button:disabled {
  cursor: not-allowed;
  background: var(--disabled-bg);
}

.alt-btn {
  background: linear-gradient(135deg, #d97706, #b45309);
}

.feed {
  height: 340px;
  overflow-y: auto;
  border-radius: 12px;
  border: 1px solid var(--feed-border);
  background: var(--surface);
  padding: 10px;
  display: grid;
  gap: 8px;
}

.message {
  border-radius: 10px;
  border: 1px solid var(--message-border);
  padding: 8px 10px;
  background: var(--surface-soft);
  font-size: 0.93rem;
  line-height: 1.4;
}

.message.local {
  border-color: var(--message-local-border);
  background: var(--surface-soft-alt);
}

.message .time {
  display: block;
  color: var(--muted);
  font-size: 0.73rem;
  margin-top: 3px;
}

.players {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 8px;
}

.player {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 10px;
  background: var(--surface);
}

.theme-btn {
  background: linear-gradient(135deg, #0a4f5a, #0a4f5a);
  width: 42px;
  min-width: 42px;
  padding: 0;
  font-size: 1.05rem;
  line-height: 1;
}

:where(button, input[type='text'], input[type='checkbox']):focus-visible {
  outline: 3px solid var(--focus-ring);
  outline-offset: 2px;
}

button:focus:not(:focus-visible),
input:focus:not(:focus-visible) {
  outline: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  button:hover:not(:disabled) {
    transform: none;
    filter: none;
  }
}

.player-name {
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tag {
  font-size: 0.7rem;
  border-radius: 999px;
  color: var(--tag-text);
  background: var(--tag-bg);
  border: 1px solid var(--tag-border);
  padding: 2px 7px;
  font-weight: 700;
  letter-spacing: 0.05em;
}

.score {
  color: var(--text-soft);
  font-size: 0.9rem;
  text-align: right;
}

.empty {
  color: var(--muted);
  font-size: 0.92rem;
  padding: 6px 2px;
}

@keyframes fade-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .landing-features {
    grid-template-columns: 1fr;
  }

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

  .join-form {
    width: 100%;
    justify-content: flex-start;
  }

  .status-grid {
    grid-template-columns: repeat(2, minmax(130px, 1fr));
  }
}

@media (max-width: 560px) {
  .landing {
    padding: 14px;
  }

  .landing-card {
    border-radius: 18px;
    padding: 16px;
  }

  .landing-actions {
    width: 100%;
  }

  .shell {
    padding: 14px 12px 26px;
    gap: 12px;
  }

  .hero,
  .panel {
    border-radius: 14px;
    padding: 12px;
  }

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

  input[type='text'],
  button,
  .checkbox-row {
    width: 100%;
  }
}