/* Off By Ten — v2 visual language: deep space, glass cards, confident type */

:root {
  --bg: #0a0c14;
  --bg-glow1: rgba(255, 149, 46, 0.10);
  --bg-glow2: rgba(124, 92, 255, 0.07);
  --card: rgba(255, 255, 255, 0.035);
  --card-solid: #12141f;
  --card-edge: rgba(255, 255, 255, 0.09);
  --card-edge-strong: rgba(255, 255, 255, 0.16);
  --text: #f2f3fa;
  --muted: #8b91b5;
  --accent: #ffb02e;
  --accent-2: #ff5e54;
  --band0: #ffce4f;
  --band1: #2fe28b;
  --band2: #ffd23f;
  --band3: #ff9838;
  --band4: #ff5c5c;
  --input-bg: rgba(0, 0, 0, 0.35);
  --shadow: 0 24px 60px -18px rgba(0, 0, 0, 0.6);
  --btn-text: #221302;
  --radius: 20px;
}

[data-theme="light"] {
  --bg: #f7f7fb;
  --bg-glow1: rgba(255, 149, 46, 0.12);
  --bg-glow2: rgba(124, 92, 255, 0.06);
  --card: #ffffff;
  --card-solid: #ffffff;
  --card-edge: #e4e5ef;
  --card-edge-strong: #d2d4e4;
  --text: #191c2e;
  --muted: #666d92;
  --accent: #e88a00;
  --accent-2: #ef4b40;
  --input-bg: #f1f1f7;
  --shadow: 0 20px 50px -20px rgba(40, 40, 80, 0.18);
  --btn-text: #ffffff;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  background-image:
    radial-gradient(52rem 30rem at 18% -10rem, var(--bg-glow1), transparent 60%),
    radial-gradient(50rem 32rem at 90% -6rem, var(--bg-glow2), transparent 60%);
  background-repeat: no-repeat;
  color: var(--text);
  line-height: 1.55;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
}

.wrap { width: min(40rem, 100% - 2.2rem); margin-inline: auto; }

a { color: var(--accent); }
::selection { background: var(--accent); color: #1a1204; }

/* ---------- header ---------- */
.site-header { padding: 1.1rem 0 0.5rem; }
.header-row { display: flex; align-items: center; justify-content: space-between; }
.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; color: var(--text); }
.brand-mark { width: 2.1rem; height: 2.1rem; filter: drop-shadow(0 2px 10px rgba(255, 149, 46, 0.35)); }
.brand-name {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700; font-size: 1.4rem; letter-spacing: -0.03em;
}
.brand-name em {
  font-style: normal;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.header-actions { display: flex; gap: 0.25rem; }
.icon-btn {
  background: none; border: none; color: var(--muted); cursor: pointer;
  width: 2.5rem; height: 2.5rem; border-radius: 12px; padding: 0.5rem;
  transition: color 0.15s, background-color 0.15s;
}
.icon-btn:hover { color: var(--text); background: var(--card); }
.icon-btn svg { width: 100%; height: 100%; }

/* ---------- game top ---------- */
.game-top { display: flex; align-items: center; justify-content: space-between; gap: 1rem; margin: 0.9rem 0 0.9rem; }
.puzzle-meta { margin: 0; color: var(--muted); font-size: 0.92rem; letter-spacing: 0.01em; }
.puzzle-meta span:first-child { color: var(--text); font-weight: 700; font-family: "Space Grotesk", system-ui, sans-serif; }

/* segmented progress bar */
.dots { display: flex; gap: 0.35rem; list-style: none; margin: 0; padding: 0; flex: 0 1 11rem; }
.dots li {
  height: 0.5rem; flex: 1; border-radius: 99px;
  background: var(--card-edge);
  transition: background-color 0.25s, box-shadow 0.25s;
}
.dots li.active { background: var(--muted); animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 50% { opacity: 0.45; } }
.dots li.b0 { background: var(--band0); box-shadow: 0 0 10px color-mix(in srgb, var(--band0) 60%, transparent); }
.dots li.b1 { background: var(--band1); box-shadow: 0 0 10px color-mix(in srgb, var(--band1) 50%, transparent); }
.dots li.b2 { background: var(--band2); }
.dots li.b3 { background: var(--band3); }
.dots li.b4 { background: var(--band4); }

/* ---------- cards ---------- */
.card {
  background: var(--card);
  border: 1px solid var(--card-edge);
  border-radius: var(--radius);
  padding: 1.7rem 1.5rem;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  animation: card-in 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}
@keyframes card-in {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: none; }
}

.chip {
  display: inline-flex; align-items: center; gap: 0.45rem;
  margin: 0 0 0.9rem; padding: 0.3rem 0.85rem;
  border-radius: 99px; font-size: 0.74rem; font-weight: 700;
  letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
}
.chip::before { content: ""; width: 0.4rem; height: 0.4rem; border-radius: 50%; background: currentColor; }

.q-prompt {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(1.45rem, 5vw, 1.85rem);
  font-weight: 700; line-height: 1.22; margin: 0 0 1.3rem; letter-spacing: -0.02em;
}

.guess-row {
  display: flex; align-items: center; gap: 0.7rem;
  background: var(--input-bg); border: 1.5px solid var(--card-edge-strong);
  border-radius: 16px; padding: 0.4rem 1.05rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.guess-row:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 18%, transparent);
}
#guess-input {
  flex: 1; min-width: 0; background: none; border: none; outline: none;
  color: var(--text); font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 1.7rem; font-weight: 700; padding: 0.4rem 0; letter-spacing: -0.01em;
}
#guess-input::placeholder { color: var(--muted); opacity: 0.5; font-weight: 500; }
.unit { color: var(--muted); font-weight: 600; white-space: nowrap; font-size: 0.95rem; }
.guess-preview { min-height: 1.3em; margin: 0.5rem 0.2rem 0.85rem; color: var(--muted); font-size: 0.95rem; }
.guess-preview b { color: var(--text); }

.btn {
  display: block; width: 100%; border: none; border-radius: 15px;
  padding: 0.95rem 1.2rem; font-size: 1.06rem; font-weight: 700;
  font-family: "Space Grotesk", system-ui, sans-serif; cursor: pointer;
  transition: transform 0.12s, filter 0.15s, box-shadow 0.15s;
  letter-spacing: 0.01em;
}
.btn:active { transform: scale(0.985); }
.btn-primary {
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  color: var(--btn-text);
  box-shadow: 0 10px 26px -10px color-mix(in srgb, var(--accent-2) 55%, transparent),
              inset 0 1px 0 rgba(255, 255, 255, 0.25);
}
.btn-primary:hover { filter: brightness(1.08); box-shadow: 0 14px 30px -10px color-mix(in srgb, var(--accent-2) 65%, transparent), inset 0 1px 0 rgba(255,255,255,0.25); }

.tip { margin: 0.9rem 0 0; color: var(--muted); font-size: 0.84rem; text-align: center; }
.tip b, .tip i { color: color-mix(in srgb, var(--text) 80%, var(--muted)); }

/* ---------- reveal ---------- */
.reveal-card { margin-top: 1rem; }
.band-label {
  margin: 0 0 1rem; font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 1.65rem; font-weight: 700; letter-spacing: -0.02em;
}
.band-label.b0 { color: var(--band0); text-shadow: 0 0 24px color-mix(in srgb, var(--band0) 45%, transparent); }
.band-label.b1 { color: var(--band1); }
.band-label.b2 { color: var(--band2); }
.band-label.b3 { color: var(--band3); }
.band-label.b4 { color: var(--band4); }

.reveal-numbers { display: flex; gap: 2rem; flex-wrap: wrap; margin-bottom: 1rem; }
.rn { display: flex; flex-direction: column; gap: 0.1rem; }
.rn-label { color: var(--muted); font-size: 0.74rem; text-transform: uppercase; letter-spacing: 0.09em; font-weight: 600; }
.rn-value { font-family: "Space Grotesk", system-ui, sans-serif; font-size: 1.6rem; font-weight: 700; letter-spacing: -0.01em; }
.rn-value.accent { color: var(--accent); }
.rn-value small { font-size: 0.95rem; color: var(--muted); font-weight: 500; }

.meter {
  position: relative; height: 0.95rem; border-radius: 99px;
  background: color-mix(in srgb, var(--band4) 80%, var(--bg)); overflow: visible; margin: 1.3rem 0 1.8rem;
}
.zone { position: absolute; top: 0; bottom: 0; left: 50%; transform: translateX(-50%); border-radius: 99px; }
.z-orange { width: 50%; background: var(--band3); }
.z-yellow { width: 23.9%; background: var(--band2); }
.z-green { width: 8.8%; background: var(--band1); box-shadow: 0 0 14px color-mix(in srgb, var(--band1) 40%, transparent); }
.tick { position: absolute; top: -0.35rem; bottom: -0.35rem; width: 3px; border-radius: 2px; transform: translateX(-50%); }
.tick-answer { left: 50%; background: var(--text); box-shadow: 0 0 0 1.5px var(--bg); }
.tick-you { background: var(--text); box-shadow: 0 0 0 1.5px var(--bg); transition: left 0.7s cubic-bezier(0.22, 1, 0.36, 1); }
.tick-you span {
  position: absolute; top: -1.45rem; left: 50%; transform: translateX(-50%);
  font-size: 0.68rem; font-weight: 700; color: var(--muted); letter-spacing: 0.06em; text-transform: uppercase;
}

.points { margin: 0 0 1rem; font-weight: 700; font-size: 1.08rem; font-family: "Space Grotesk", system-ui, sans-serif; }
.fun-fact { margin: 0 0 0.5rem; color: color-mix(in srgb, var(--text) 88%, var(--muted)); }
.source { margin: 0 0 1.3rem; color: var(--muted); font-size: 0.82rem; }

/* ---------- summary ---------- */
.summary-card { margin-top: 1rem; text-align: center; }
.summary-kicker { margin: 0; color: var(--muted); text-transform: uppercase; font-size: 0.76rem; letter-spacing: 0.14em; font-weight: 600; }
.score {
  margin: 0.35rem 0 0; font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: 4.4rem; font-weight: 700; line-height: 1; letter-spacing: -0.03em;
  background: linear-gradient(100deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  filter: drop-shadow(0 6px 24px color-mix(in srgb, var(--accent-2) 30%, transparent));
}
.grade { margin: 0.4rem 0 0.7rem; font-weight: 600; font-size: 1.15rem; }
.emoji-row { font-size: 1.8rem; letter-spacing: 0.18em; margin: 0.2rem 0 1.3rem; }
.btn-share { max-width: 20rem; margin-inline: auto; }

.summary-stats {
  display: flex; justify-content: center; gap: 2rem; margin: 1.6rem 0 0.6rem; flex-wrap: wrap;
}
.summary-stats div { display: flex; flex-direction: column; min-width: 3.5rem; }
.summary-stats b { font-family: "Space Grotesk", system-ui, sans-serif; font-size: 1.6rem; letter-spacing: -0.02em; }
.summary-stats span { color: var(--muted); font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.06em; }

.countdown { color: var(--muted); margin: 1rem 0 0.2rem; font-size: 0.95rem; }
.countdown b { color: var(--text); font-family: "Space Grotesk", system-ui, sans-serif; font-variant-numeric: tabular-nums; }
.summary-links { margin: 0.4rem 0 0; }

.review { text-align: left; margin-top: 1.5rem; border-top: 1px solid var(--card-edge); padding-top: 0.4rem; }
.review-item { padding: 0.75rem 0; border-bottom: 1px solid var(--card-edge); font-size: 0.93rem; }
.review-item:last-child { border-bottom: none; }
.review-item .ri-q { margin: 0 0 0.15rem; color: var(--muted); }
.review-item .ri-a { margin: 0; font-weight: 600; }

/* ---------- archive note ---------- */
.archive-note {
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  color: var(--text); border-radius: 14px; padding: 0.65rem 1rem;
  margin: 0.4rem 0 0.9rem; font-size: 0.92rem;
}

/* ---------- SEO copy & pages ---------- */
.seo-copy { margin: 3.5rem 0 2rem; color: var(--muted); }
.seo-copy h2 { color: var(--text); font-family: "Space Grotesk", system-ui, sans-serif; font-size: 1.3rem; margin: 2rem 0 0.4rem; letter-spacing: -0.01em; }
.seo-copy h3 { color: var(--text); font-size: 1rem; margin: 1.2rem 0 0.2rem; }
.seo-copy p, .seo-copy li { font-size: 0.95rem; }
.seo-copy b, .seo-copy em { color: var(--text); }

.page { padding: 1rem 0 3rem; }
.page h1 { font-family: "Space Grotesk", system-ui, sans-serif; letter-spacing: -0.02em; font-size: 2rem; }
.page h2 { font-family: "Space Grotesk", system-ui, sans-serif; font-size: 1.25rem; margin-top: 1.7rem; letter-spacing: -0.01em; }
.page .muted { color: var(--muted); }

/* ---------- archive list ---------- */
.archive-list { list-style: none; padding: 0; margin: 1.2rem 0; }
.archive-list li { margin-bottom: 0.6rem; }
.archive-list a {
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  background: var(--card); border: 1px solid var(--card-edge); border-radius: 14px;
  padding: 0.8rem 1.1rem; text-decoration: none; color: var(--text);
  transition: border-color 0.15s, transform 0.12s;
}
.archive-list a:hover { border-color: color-mix(in srgb, var(--accent) 55%, transparent); transform: translateY(-1px); }
.archive-list b { font-family: "Space Grotesk", system-ui, sans-serif; }
.archive-list .al-date { color: var(--muted); font-size: 0.88rem; flex: 1; }
.archive-list .al-score { font-family: "Space Grotesk", system-ui, sans-serif; font-weight: 700; }
.archive-list .al-play { color: var(--accent); font-weight: 700; font-size: 0.9rem; }

/* ---------- footer ---------- */
.site-footer { margin-top: auto; border-top: 1px solid var(--card-edge); padding: 1.1rem 0 1.5rem; }
.footer-row { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 0.5rem; color: var(--muted); font-size: 0.87rem; }
.footer-row p { margin: 0; }
.footer-row nav { display: flex; gap: 1.2rem; }
.footer-row a { color: var(--muted); text-decoration: none; }
.footer-row a:hover { color: var(--text); }

/* ---------- modals, toast, confetti ---------- */
.modal {
  background: var(--card-solid); color: var(--text);
  border: 1px solid var(--card-edge-strong); border-radius: var(--radius);
  padding: 1.7rem 1.6rem; width: min(26rem, 92vw);
  box-shadow: var(--shadow);
}
.modal::backdrop { background: rgba(4, 5, 14, 0.65); backdrop-filter: blur(4px); }
.modal h2 { margin-top: 0; font-family: "Space Grotesk", system-ui, sans-serif; letter-spacing: -0.01em; }
.modal-close {
  position: absolute; top: 0.75rem; right: 0.85rem; background: none; border: none;
  color: var(--muted); font-size: 1.6rem; cursor: pointer; line-height: 1;
}
.modal-close:hover { color: var(--text); }
.bands-table { border-collapse: collapse; margin: 0.6rem 0; width: 100%; }
.bands-table td { padding: 0.32rem 0.5rem 0.32rem 0; }
.small { font-size: 0.85rem; }
.stats-grid { justify-content: flex-start; row-gap: 1rem; }

.toast {
  position: fixed; left: 50%; bottom: 2rem; transform: translateX(-50%) translateY(1rem);
  background: var(--text); color: var(--bg); padding: 0.65rem 1.3rem;
  border-radius: 99px; font-weight: 600; opacity: 0; pointer-events: none;
  transition: opacity 0.25s, transform 0.25s; z-index: 60;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }

#confetti { position: fixed; inset: 0; width: 100vw; height: 100vh; pointer-events: none; z-index: 50; }

@media (max-width: 26rem) {
  .card { padding: 1.3rem 1.05rem; }
  .summary-stats { gap: 1.2rem; }
  .dots { flex: 0 1 8rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}