/* =========================================================
   SilverCoins.in — premium dark "obsidian & sterling" theme
   Mobile-first. Breakpoints: 640 / 900 / 1180
   ========================================================= */

:root {
  --bg: #07080b;
  --bg-2: #0c0f15;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.08);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #eef1f5;
  --muted: #8f97a4;
  --faint: #5d6572;
  --ice: #9fd8ff;
  --up: #3ddc97;
  --down: #ff6b6b;
  --gold: #e9c77b;

  --silver: linear-gradient(180deg, #ffffff 0%, #e3e7ec 28%, #a3abb6 52%, #f3f5f8 72%, #b9c0ca 100%);
  --silver-btn: linear-gradient(180deg, #fbfcfd 0%, #d5dae1 45%, #aeb5bf 100%);

  --r-sm: 10px;
  --r: 18px;
  --r-lg: 26px;
  --shadow: 0 20px 60px -20px rgba(0, 0, 0, 0.8);
  --font: "Manrope", system-ui, -apple-system, "Segoe UI", sans-serif;
  --serif: "Fraunces", Georgia, "Times New Roman", serif;
  --header-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button, input, select { font: inherit; color: inherit; }
h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.1; margin: 0; letter-spacing: -0.02em; }
p { margin: 0; }
small { color: var(--muted); font-size: .8em; }

[hidden] { display: none !important; }
.sr-only, .hp { position: absolute !important; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.skip { position: absolute; left: -999px; top: 8px; z-index: 100; background: #fff; color: #000; padding: 8px 14px; border-radius: 8px; }
.skip:focus { left: 8px; }
:focus-visible { outline: 2px solid var(--ice); outline-offset: 2px; border-radius: 6px; }

.wrap { width: 100%; max-width: 1180px; margin: 0 auto; padding: 0 16px; }
.wrap.narrow { max-width: 820px; }
.muted { color: var(--muted); }

/* Ambient background glow */
.bg-glow {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background:
    radial-gradient(60vw 50vh at 85% -5%, rgba(159, 216, 255, 0.10), transparent 60%),
    radial-gradient(50vw 40vh at 0% 20%, rgba(220, 226, 235, 0.07), transparent 60%),
    radial-gradient(70vw 50vh at 50% 110%, rgba(120, 130, 150, 0.10), transparent 60%),
    var(--bg);
}

/* Metallic silver text */
.metal {
  background: var(--silver);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.shimmer {
  background: linear-gradient(100deg, #9aa2ad 0%, #ffffff 20%, #b9c0ca 40%, #eef1f5 60%, #9aa2ad 80%, #ffffff 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: shimmer 6s linear infinite;
}
@keyframes shimmer { to { background-position: -200% center; } }

.glass {
  background: linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.02));
  border: 1px solid var(--line);
  border-radius: var(--r);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,.06);
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px; border-radius: 999px;
  font-weight: 700; font-size: 15px; letter-spacing: .01em;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:active { transform: scale(.98); }
.btn-primary {
  background: var(--silver-btn); color: #111419;
  box-shadow: 0 10px 30px -10px rgba(220, 228, 238, .55), inset 0 1px 0 #fff;
}
.btn-primary:hover { box-shadow: 0 14px 40px -10px rgba(220, 228, 238, .75), inset 0 1px 0 #fff; transform: translateY(-1px); }
.btn-ghost { border-color: var(--line-strong); background: rgba(255,255,255,.03); }
.btn-ghost:hover { background: rgba(255,255,255,.08); }

/* ============ HEADER ============ */
.site-header {
  position: sticky; top: 0; z-index: 50;
  height: var(--header-h);
  background: rgba(7, 8, 11, .72);
  backdrop-filter: saturate(160%) blur(18px);
  -webkit-backdrop-filter: saturate(160%) blur(18px);
  border-bottom: 1px solid var(--line);
}
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: -0.01em; }
.brand-coin {
  width: 32px; height: 32px; border-radius: 50%; flex: none;
  display: grid; place-items: center;
  font: 700 13px var(--serif); color: #3b414b;
  background: radial-gradient(circle at 32% 28%, #fff 0%, #d9dee5 35%, #8e96a1 80%, #646b76 100%);
  box-shadow: 0 0 0 2px rgba(255,255,255,.08), 0 4px 14px rgba(200, 210, 225, .25);
}
.brand-name { font-size: 18px; }
.brand-name em { font-style: normal; color: var(--muted); font-weight: 600; }

.header-actions { display: flex; align-items: center; gap: 8px; }
.cur-select select {
  appearance: none; -webkit-appearance: none;
  height: 38px; padding: 0 30px 0 12px; border-radius: 999px;
  background: var(--surface-2) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23c9ced6' stroke-width='1.6' fill='none'/%3E%3C/svg%3E") no-repeat right 12px center;
  border: 1px solid var(--line-strong);
  font-weight: 700; font-size: 14px; cursor: pointer;
}
.cur-select option { background: #11151c; color: var(--text); }

.menu-btn {
  width: 42px; height: 42px; border-radius: 12px;
  background: var(--surface-2); border: 1px solid var(--line-strong);
  display: grid; place-content: center; gap: 5px; cursor: pointer;
}
.menu-btn span { display: block; width: 18px; height: 2px; background: var(--text); border-radius: 2px; transition: transform .25s, opacity .25s; }
.menu-btn[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-btn[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav {
  position: fixed; top: var(--header-h); left: 0; right: 0;
  display: flex; flex-direction: column; gap: 4px;
  padding: 16px 16px 24px;
  background: rgba(9, 11, 15, .97);
  border-bottom: 1px solid var(--line);
  transform: translateY(-12px); opacity: 0; visibility: hidden;
  transition: opacity .25s ease, transform .25s ease, visibility .25s;
}
.nav.open { transform: none; opacity: 1; visibility: visible; }
.nav a { padding: 14px 12px; border-radius: 12px; font-weight: 600; font-size: 17px; }
.nav a:hover { background: var(--surface-2); }
.nav .nav-cta { margin-top: 8px; text-align: center; background: var(--silver-btn); color: #111419; font-weight: 800; }

/* ============ HERO ============ */
.hero { padding: 28px 0 0; position: relative; }
.hero-grid { display: grid; gap: 24px; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; font-weight: 600; color: var(--muted);
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--line); background: var(--surface);
}
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--up); box-shadow: 0 0 0 0 rgba(61, 220, 151, .6); animation: pulse 2s infinite; }
@keyframes pulse { 70% { box-shadow: 0 0 0 10px rgba(61, 220, 151, 0); } 100% { box-shadow: 0 0 0 0 rgba(61, 220, 151, 0); } }
.hero h1 { font-size: clamp(38px, 10.5vw, 72px); margin: 16px 0 10px; }
.lede { color: var(--muted); font-size: 17px; max-width: 34ch; }

.price-card { margin-top: 22px; padding: 18px; border-radius: var(--r-lg); position: relative; overflow: hidden; }
.price-card::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px; pointer-events: none;
  background: linear-gradient(140deg, rgba(255,255,255,.35), rgba(255,255,255,0) 40%, rgba(159,216,255,.25) 100%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
}
.price-top { display: flex; align-items: center; justify-content: space-between; gap: 8px; flex-wrap: wrap; }
.unit-tabs { display: inline-flex; padding: 4px; gap: 2px; border-radius: 999px; background: rgba(0,0,0,.35); border: 1px solid var(--line); }
.unit-tabs button {
  border: 0; background: transparent; padding: 7px 12px; border-radius: 999px;
  font-size: 13px; font-weight: 700; color: var(--muted); cursor: pointer; transition: all .2s;
}
.unit-tabs button[aria-selected="true"] { background: var(--silver-btn); color: #111419; }
.chg { font-size: 13px; font-weight: 800; padding: 5px 10px; border-radius: 999px; }
.chg.up { color: var(--up); background: rgba(61,220,151,.12); }
.chg.down { color: var(--down); background: rgba(255,107,107,.12); }

.price-main { margin-top: 16px; display: flex; flex-direction: column; }
.price-big { font-family: var(--serif); font-size: clamp(44px, 13vw, 76px); font-weight: 700; line-height: 1; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; }
.price-big.flash { animation: flash .9s ease; }
@keyframes flash { 0% { filter: brightness(1.8) drop-shadow(0 0 18px rgba(255,255,255,.6)); } 100% { filter: none; } }
.price-unit { color: var(--muted); font-weight: 600; margin-top: 8px; font-size: 14px; }
.price-sub { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 10px; margin-top: 10px; font-size: 14px; color: var(--muted); }
.price-sub strong { color: var(--text); }
.dot-sep { width: 4px; height: 4px; border-radius: 50%; background: var(--faint); }
.spark { width: 100%; height: 56px; margin-top: 14px; }
.stat-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; margin-top: 16px; padding-top: 14px; border-top: 1px solid var(--line); }
.stat-row div { display: flex; flex-direction: column; min-width: 0; }
.stat-row > div > span { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--faint); font-weight: 700; }
.stat-row strong { font-size: 15px; font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.hero-ctas { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 16px; }

/* 3D coin */
.hero-visual { display: none; }
.coin-stage { position: relative; width: 340px; height: 380px; margin: 0 auto; perspective: 1200px; }
.coin {
  position: absolute; top: 20px; left: 50%; width: 280px; height: 280px; margin-left: -140px;
  border-radius: 50%;
  background: repeating-conic-gradient(from 0deg, #d8dde4 0deg 2deg, #7c848f 2deg 4deg);
  padding: 12px;
  box-shadow: 0 30px 80px -20px rgba(0,0,0,.9), 0 0 60px rgba(210, 220, 235, .15);
  animation: float 7s ease-in-out infinite;
  transform-style: preserve-3d;
}
.coin-face {
  position: relative; width: 100%; height: 100%; border-radius: 50%;
  display: grid; place-items: center; overflow: hidden;
  background:
    radial-gradient(circle at 30% 25%, rgba(255,255,255,.95) 0%, rgba(255,255,255,0) 38%),
    radial-gradient(circle at 50% 50%, #eceff3 0%, #c3c9d1 45%, #8c949f 80%, #6d7480 100%);
  box-shadow: inset 0 0 0 6px rgba(255,255,255,.35), inset 0 0 0 14px rgba(90,98,110,.35), inset 0 -18px 40px rgba(0,0,0,.35);
}
.coin-face::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: linear-gradient(115deg, transparent 35%, rgba(255,255,255,.75) 48%, transparent 60%);
  transform: translateX(-120%); animation: sweep 5s ease-in-out infinite 1s;
}
@keyframes sweep { 0%, 55% { transform: translateX(-120%); } 85%, 100% { transform: translateX(120%); } }
.coin-mark { font: 700 96px/1 var(--serif); color: #5c636e; text-shadow: 0 1px 0 rgba(255,255,255,.8), 0 -1px 0 rgba(0,0,0,.25); letter-spacing: -0.04em; }
.coin-mark.sm { font-size: 44px; }
.coin-sub { position: absolute; bottom: 58px; font: 700 12px var(--font); letter-spacing: .3em; color: #636a75; }
.coin-ring-text {
  position: absolute; top: 38px; font: 800 11px var(--font); letter-spacing: .32em; color: #5f6671; opacity: .85; white-space: nowrap;
}
.coin-back {
  width: 150px; height: 150px; margin-left: 30px; top: 210px; padding: 8px; z-index: -1;
  animation: float 7s ease-in-out infinite -3s; filter: brightness(.8);
}
.coin-shadow { position: absolute; bottom: 0; left: 50%; width: 240px; height: 30px; margin-left: -120px; border-radius: 50%; background: radial-gradient(rgba(0,0,0,.7), transparent 70%); animation: shadow 7s ease-in-out infinite; }
@keyframes float { 0%, 100% { transform: translateY(0) rotateX(12deg) rotateY(-16deg); } 50% { transform: translateY(-16px) rotateX(6deg) rotateY(12deg); } }
@keyframes shadow { 50% { transform: scale(.85); opacity: .7; } }

/* Ticker */
.ticker { margin-top: 28px; border-block: 1px solid var(--line); background: rgba(255,255,255,.02); overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent); }
.ticker-track { display: flex; width: max-content; animation: marquee 40s linear infinite; }
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-group { display: flex; }
.ticker span { padding: 12px 22px; font-size: 13px; color: var(--muted); white-space: nowrap; border-right: 1px solid var(--line); font-weight: 600; }
.ticker b { color: var(--text); margin-left: 6px; font-variant-numeric: tabular-nums; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ============ SECTIONS ============ */
.section { padding: 56px 0 8px; }
.section-head { margin-bottom: 22px; }
.section-head h2 { font-size: clamp(30px, 8vw, 46px); }
.section-head .muted { margin-top: 10px; max-width: 60ch; }
.kicker { font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; color: var(--ice); margin-bottom: 10px; }

/* Rate table */
.table-card { padding: 4px; overflow-x: auto; }
.rate-table { width: 100%; border-collapse: collapse; font-variant-numeric: tabular-nums; }
.rate-table th { text-align: right; font-size: 10.5px; letter-spacing: .06em; text-transform: uppercase; color: var(--faint); font-weight: 800; padding: 12px 8px; }
.rate-table td { text-align: right; padding: 13px 8px; border-top: 1px solid var(--line); font-size: 13.5px; font-weight: 600; white-space: nowrap; }
.rate-table th:first-child, .rate-table td:first-child { text-align: left; }
.rate-table td:first-child { font-weight: 800; }
.rate-table td:first-child small { display: block; font-weight: 500; }
.rate-table tbody tr { transition: background .2s; }
.rate-table tbody tr:hover { background: rgba(255,255,255,.03); }
.rate-table td:nth-child(2) { color: #fff; }
body:not(.cur-inr) .gst-col, body:not(.cur-inr) .inr-only { display: none; }

/* Calculator */
.calc { padding: 18px; display: grid; gap: 20px; border-radius: var(--r-lg); }
.calc-fields { display: grid; gap: 16px; }
.field label { display: flex; justify-content: space-between; font-size: 13px; font-weight: 700; color: var(--muted); margin-bottom: 8px; }
.field output { color: var(--text); }
.field input[type="number"], .field select, .alert-form input[type="email"], .alert-form input[type="number"], .search {
  width: 100%; height: 52px; padding: 0 16px; border-radius: 14px;
  background: rgba(0,0,0,.35); border: 1px solid var(--line-strong);
  font-size: 16px; font-weight: 600; transition: border-color .2s, box-shadow .2s;
}
.field select, .input-combo select { appearance: none; -webkit-appearance: none; background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M1 1l4 4 4-4' stroke='%23c9ced6' stroke-width='1.6' fill='none'/%3E%3C/svg%3E"); background-repeat: no-repeat; background-position: right 16px center; padding-right: 36px; cursor: pointer; }
.field select option, .input-combo select option { background: #11151c; }
input:focus, select:focus { outline: none; border-color: rgba(159,216,255,.6) !important; box-shadow: 0 0 0 4px rgba(159,216,255,.12); }
.input-combo { display: flex; border-radius: 14px; }
.input-combo input { border-top-right-radius: 0 !important; border-bottom-right-radius: 0 !important; min-width: 0; flex: 1 1 auto; }
.field .input-combo select { width: auto; }
.input-combo select, .combo-tag {
  height: 52px; border-radius: 0 14px 14px 0; border: 1px solid var(--line-strong); border-left: 0;
  background-color: var(--surface-2); padding: 0 36px 0 14px; font-weight: 700; font-size: 15px; flex: none;
}
.combo-tag { display: grid; place-items: center; padding: 0 16px; color: var(--muted); font-size: 14px; }

input[type="range"] { -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 6px; background: linear-gradient(90deg, #dfe4ea var(--fill, 0%), rgba(255,255,255,.1) var(--fill, 0%)); margin: 12px 0 8px; }
input[type="range"]::-webkit-slider-thumb { -webkit-appearance: none; width: 24px; height: 24px; border-radius: 50%; background: var(--silver-btn); border: 2px solid #fff; box-shadow: 0 4px 12px rgba(0,0,0,.5); cursor: pointer; }
input[type="range"]::-moz-range-thumb { width: 22px; height: 22px; border-radius: 50%; background: #dfe4ea; border: 2px solid #fff; cursor: pointer; }

.toggle { display: inline-flex; align-items: center; gap: 12px; font-weight: 700; font-size: 15px; cursor: pointer; user-select: none; }
.toggle input { position: absolute; opacity: 0; pointer-events: none; }
.toggle-ui { width: 46px; height: 28px; border-radius: 999px; background: rgba(255,255,255,.12); position: relative; transition: background .2s; flex: none; }
.toggle-ui::after { content: ""; position: absolute; top: 3px; left: 3px; width: 22px; height: 22px; border-radius: 50%; background: #fff; transition: transform .2s; box-shadow: 0 2px 6px rgba(0,0,0,.4); }
.toggle input:checked + .toggle-ui { background: #b9c3cf; }
.toggle input:checked + .toggle-ui::after { transform: translateX(18px); }
.toggle input:focus-visible + .toggle-ui { outline: 2px solid var(--ice); outline-offset: 2px; }

.calc-result { padding: 20px; border-radius: var(--r); background: radial-gradient(120% 120% at 0% 0%, rgba(255,255,255,.09), rgba(0,0,0,.25)); border: 1px solid var(--line); }
.calc-result > .muted { font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.calc-total { display: block; font: 700 clamp(40px, 12vw, 60px)/1.05 var(--serif); margin: 8px 0 14px; letter-spacing: -0.03em; font-variant-numeric: tabular-nums; word-break: break-word; }
.calc-break { margin: 0; display: grid; gap: 8px; font-size: 14px; }
.calc-break div { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); }
.calc-break dd { margin: 0; color: var(--text); font-weight: 700; font-variant-numeric: tabular-nums; }

/* Festival */
.festival { padding: 24px 18px; border-radius: var(--r-lg); display: grid; gap: 22px; position: relative; overflow: hidden; }
.festival::before { content: ""; position: absolute; inset: 0; background: radial-gradient(80% 90% at 100% 0%, rgba(233,199,123,.16), transparent 60%); pointer-events: none; }
.festival .kicker { color: var(--gold); }
.festival h2 { font-size: clamp(28px, 7.5vw, 42px); }
.festival .muted { margin: 10px 0 18px; }
.countdown { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; position: relative; }
.countdown div { text-align: center; padding: 14px 4px; border-radius: 14px; background: rgba(0,0,0,.35); border: 1px solid var(--line); }
.countdown strong { display: block; font: 700 clamp(26px, 8vw, 40px)/1 var(--serif); font-variant-numeric: tabular-nums; }
.countdown span { font-size: 11px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--muted); }

/* Coins */
.coin-tools { display: grid; gap: 12px; margin-bottom: 16px; }
.chips { display: flex; gap: 8px; overflow-x: auto; scrollbar-width: none; margin: 0 -16px; padding: 0 16px; }
.chips::-webkit-scrollbar { display: none; }
.chip { flex: none; height: 38px; padding: 0 16px; border-radius: 999px; border: 1px solid var(--line-strong); background: var(--surface); font-weight: 700; font-size: 14px; cursor: pointer; transition: all .2s; }
.chip[aria-selected="true"] { background: var(--silver-btn); color: #111419; border-color: transparent; }
.search { padding-left: 44px; background: rgba(0,0,0,.35) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' fill='none' stroke='%238f97a4' stroke-width='2'%3E%3Ccircle cx='8' cy='8' r='6'/%3E%3Cpath d='M13 13l4 4'/%3E%3C/svg%3E") no-repeat 16px center; }

.coin-grid { display: grid; gap: 10px; }
.coin-card { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 14px; padding: 14px; transition: transform .2s, border-color .2s; }
.coin-card:hover { transform: translateY(-2px); border-color: var(--line-strong); }
.coin-card[hidden] { display: none; }
.mini-coin {
  width: 50px; height: 50px; border-radius: 50%;
  display: grid; place-items: center; font: 800 12px var(--font); color: #4d545e;
  background: radial-gradient(circle at 32% 28%, #fff 0%, #dde1e7 30%, #9ca4af 75%, #737b86 100%);
  box-shadow: inset 0 0 0 3px rgba(255,255,255,.4), inset 0 0 0 6px rgba(80,88,100,.25), 0 6px 16px rgba(0,0,0,.5);
}
.coin-info { min-width: 0; }
.coin-info h3 { font-family: var(--font); font-size: 15px; font-weight: 800; letter-spacing: 0; }
.coin-info p { font-size: 12.5px; color: var(--muted); line-height: 1.4; }
.coin-info .pure { color: var(--faint); margin-top: 2px; }
.coin-val { font-weight: 800; font-size: 16px; text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.empty { text-align: center; color: var(--muted); padding: 30px 0; }

/* World */
.world-grid { display: grid; gap: 10px; }
.world-card { padding: 16px; }
.world-head { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.world-head .flag { font-size: 28px; line-height: 1; }
.world-head strong { display: block; font-size: 15px; }
.world-head small { font-weight: 700; letter-spacing: .06em; }
.world-card dl { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; margin: 0; }
.world-card dl div { padding: 10px 12px; border-radius: 12px; background: rgba(0,0,0,.28); }
.world-card dt { font-size: 11px; font-weight: 700; color: var(--faint); text-transform: uppercase; letter-spacing: .08em; }
.world-card dd { margin: 2px 0 0; font-weight: 800; font-size: 15px; font-variant-numeric: tabular-nums; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* Guide */
.guide-grid { display: grid; gap: 10px; }
.guide-card { padding: 20px; }
.g-ico { display: inline-grid; place-items: center; width: 46px; height: 46px; font-size: 22px; border-radius: 14px; background: rgba(255,255,255,.06); border: 1px solid var(--line); margin-bottom: 14px; }
.guide-card h3 { font-size: 21px; margin-bottom: 8px; }
.guide-card p { color: var(--muted); font-size: 15px; }
.partner { margin-top: 16px; padding: 22px 18px; display: grid; gap: 18px; border-radius: var(--r-lg); background: linear-gradient(135deg, rgba(159,216,255,.10), rgba(255,255,255,.02) 55%); }
.partner h3 { font-size: 24px; margin-bottom: 8px; }

/* Alerts */
.alert-card { padding: 24px 18px; border-radius: var(--r-lg); display: grid; gap: 20px; background: radial-gradient(100% 120% at 100% 100%, rgba(159,216,255,.12), transparent 60%), linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.02)); }
.alert-card h2 { font-size: clamp(30px, 8vw, 44px); }
.alert-copy .muted { margin-top: 10px; }
.alert-form { display: grid; gap: 10px; }
.form-msg { font-size: 14px; font-weight: 600; min-height: 1.4em; }
.form-msg.ok { color: var(--up); }
.form-msg.err { color: var(--down); }

/* FAQ */
.faq { display: grid; gap: 10px; }
.faq details { padding: 0; border-radius: var(--r); overflow: hidden; }
.faq summary { list-style: none; cursor: pointer; padding: 18px 52px 18px 18px; font-weight: 700; font-size: 16px; position: relative; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; position: absolute; right: 18px; top: 50%; transform: translateY(-50%); width: 26px; height: 26px; border-radius: 50%; display: grid; place-items: center; background: var(--surface-2); font-size: 18px; font-weight: 500; transition: transform .25s; }
.faq details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq details p { padding: 0 18px 18px; color: var(--muted); }

/* Ads */
.ad-slot { margin: 32px 0 0; min-height: 100px; display: grid; place-items: center; border: 1px dashed var(--line-strong); border-radius: var(--r); color: var(--faint); font-size: 12px; letter-spacing: .1em; text-transform: uppercase; }

/* Footer */
.site-footer { margin-top: 72px; padding: 48px 0 32px; border-top: 1px solid var(--line); background: linear-gradient(180deg, transparent, rgba(255,255,255,.02)); }
.footer-grid { display: grid; gap: 28px; grid-template-columns: 1fr 1fr; }
.footer-brand { grid-column: 1 / -1; }
.footer-brand p { color: var(--muted); margin-top: 12px; max-width: 42ch; font-size: 15px; }
.footer-grid h3 { font-family: var(--font); font-size: 12px; letter-spacing: .14em; text-transform: uppercase; color: var(--faint); margin-bottom: 12px; }
.footer-grid div > a:not(.brand) { display: block; padding: 5px 0; color: var(--muted); font-size: 15px; }
.footer-grid a:hover { color: var(--text); }
.disclaimer { margin-top: 32px; padding-top: 20px; border-top: 1px solid var(--line); font-size: 12.5px; color: var(--faint); line-height: 1.6; }
.copy { margin-top: 12px; font-size: 13px; color: var(--faint); }

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============ ≥ 640px ============ */
@media (min-width: 640px) {
  .wrap { padding: 0 24px; }
  .chips { margin: 0; padding: 0; }
  .coin-tools { grid-template-columns: 1fr 320px; align-items: center; }
  .coin-grid, .world-grid, .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .calc-fields { grid-template-columns: 1fr 1fr; align-items: end; }
  .hero-ctas { display: flex; }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .footer-brand { grid-column: auto; }
  .rate-table td { font-size: 15px; padding: 14px 18px; }
  .rate-table th { padding: 12px 18px; }
}

/* ============ ≥ 900px ============ */
@media (min-width: 900px) {
  :root { --header-h: 72px; }
  .menu-btn { display: none; }
  .nav {
    position: static; flex-direction: row; align-items: center; gap: 2px;
    padding: 0; background: none; border: 0; transform: none; opacity: 1; visibility: visible;
  }
  .nav a { font-size: 14px; padding: 8px 12px; color: var(--muted); }
  .nav a:hover { color: var(--text); background: none; }
  .nav .nav-cta { margin: 0 0 0 8px; padding: 9px 16px; color: #111419; border-radius: 999px; }
  .nav .nav-cta:hover { color: #111419; }
  .hero { padding-top: 56px; }
  .hero-grid { grid-template-columns: 1.1fr .9fr; align-items: center; gap: 40px; }
  .hero-visual { display: block; }
  .price-card { padding: 24px; }
  .section { padding-top: 88px; }
  .calc { grid-template-columns: 1.1fr .9fr; padding: 28px; gap: 28px; align-items: stretch; }
  .calc-result { display: flex; flex-direction: column; justify-content: center; }
  .festival { grid-template-columns: 1.2fr 1fr; align-items: center; padding: 36px; }
  .coin-grid, .guide-grid { grid-template-columns: repeat(3, 1fr); }
  .coin-card { grid-template-columns: auto 1fr; grid-template-rows: auto auto; }
  .coin-val { grid-column: 1 / -1; text-align: left; font-size: 20px; padding-top: 10px; border-top: 1px solid var(--line); }
  .world-grid { grid-template-columns: repeat(3, 1fr); }
  .partner { grid-template-columns: 1fr auto; align-items: center; padding: 30px 32px; }
  .alert-card { grid-template-columns: 1fr 1fr; align-items: center; padding: 40px; gap: 40px; }
}

@media (min-width: 1180px) {
  .coin-grid { grid-template-columns: repeat(4, 1fr); }
  .coin-stage { transform: scale(1.1); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* =========================================================
   City pages
   ========================================================= */
.crumbs { display: flex; flex-wrap: wrap; align-items: center; gap: 6px; font-size: 13px; color: var(--faint); margin-bottom: 16px; font-weight: 600; }
.crumbs a { color: var(--muted); }
.crumbs a:hover { color: var(--text); }
.crumbs [aria-current] { color: var(--text); }

.city-snapshot { padding: 22px 20px; border-radius: var(--r-lg); position: relative; overflow: hidden; }
.city-snapshot::before { content: ""; position: absolute; inset: 0; background: radial-gradient(90% 70% at 100% 0%, rgba(159,216,255,.12), transparent 60%); pointer-events: none; }
.snap-word { font: 700 clamp(52px, 16vw, 84px)/1.1 var(--serif); margin-top: 4px; }
.snap-roman { font-weight: 800; letter-spacing: .2em; text-transform: uppercase; color: var(--muted); font-size: 13px; margin-bottom: 18px; }
.snap-list { margin: 0; display: grid; gap: 0; }
.snap-list div { display: flex; justify-content: space-between; gap: 16px; padding: 12px 0; border-top: 1px solid var(--line); font-size: 14px; }
.snap-list dt { color: var(--muted); font-weight: 600; flex: none; }
.snap-list dd { margin: 0; font-weight: 700; text-align: right; }

.local-grid { display: grid; gap: 10px; }
.local-card { padding: 20px; }
.local-card h3 { font-size: 21px; margin-bottom: 10px; }
.local-card p { color: var(--muted); font-size: 15px; }
.local-card p strong, .local-card p .px { color: var(--text); font-weight: 700; }
.local-card .small { font-size: 13px; margin-top: 12px; }
.local-feature { background: radial-gradient(120% 100% at 0% 0%, rgba(233,199,123,.12), transparent 60%), linear-gradient(180deg, rgba(255,255,255,.055), rgba(255,255,255,.02)); }
.local-feature p { color: var(--text); font-size: 16px; }
.tag-list { list-style: none; margin: 0; padding: 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tag-list li { padding: 7px 12px; border-radius: 999px; background: rgba(255,255,255,.06); border: 1px solid var(--line); font-size: 13.5px; font-weight: 700; }

.city-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.city-card { display: flex; flex-direction: column; gap: 2px; padding: 14px; transition: transform .2s, border-color .2s; min-width: 0; }
.city-card:hover { transform: translateY(-2px); border-color: var(--line-strong); }
.city-name { font-weight: 800; font-size: 16px; }
.city-state { font-size: 12px; color: var(--faint); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.city-price { margin-top: 10px; font-weight: 800; font-variant-numeric: tabular-nums; }
.city-price small { margin-left: 3px; font-weight: 600; }
.region-title { font-family: var(--font); font-size: 12px; font-weight: 800; letter-spacing: .16em; text-transform: uppercase; color: var(--muted); margin: 26px 0 12px; }
.city-search { margin-bottom: 4px; }

.hub-hero h1 { max-width: 16ch; }
.hub-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-top: 22px; }
.hub-stats > div { padding: 16px; display: flex; flex-direction: column; }
.hub-stats > div > span { font-size: 11px; text-transform: uppercase; letter-spacing: .08em; color: var(--faint); font-weight: 800; }
.hub-stats strong { font: 700 clamp(20px, 5.5vw, 28px)/1.2 var(--serif); margin-top: 4px; font-variant-numeric: tabular-nums; white-space: nowrap; }

.explain { padding: 24px 20px; border-radius: var(--r-lg); }
.explain h2 { font-size: clamp(26px, 7vw, 36px); margin-bottom: 14px; }
.explain p { color: var(--muted); margin-top: 12px; }
.explain strong, .explain .px { color: var(--text); }

@media (min-width: 640px) {
  .local-grid { grid-template-columns: 1fr 1fr; }
  .city-grid { grid-template-columns: repeat(3, 1fr); }
  .hub-stats { grid-template-columns: repeat(4, 1fr); }
  .explain { padding: 36px; }
}
@media (min-width: 900px) {
  .city-snapshot { padding: 32px; align-self: center; }
  .local-grid { grid-template-columns: repeat(3, 1fr); }
  .local-feature { grid-column: 1 / -1; }
  .city-grid { grid-template-columns: repeat(4, 1fr); }
}

/* =========================================================
   Coin pages
   ========================================================= */
.coin-card { position: relative; }
.coin-card h3 a { color: inherit; }
.stretch::after { content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: 1; }
.coin-card:has(.stretch):hover h3 a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--faint); }

.coin-price .price-top { min-height: 0; }
.coin-price .price-main { margin-top: 10px; }

.coin-detail { display: grid; gap: 20px; }
.coin-about h2 { font-size: clamp(30px, 8vw, 44px); margin-bottom: 16px; }
.coin-about p:not(.kicker) { color: var(--muted); font-size: 16.5px; margin-top: 12px; max-width: 62ch; }
.spec-card { padding: 20px; border-radius: var(--r-lg); }
.spec-card h3 { font-size: 22px; margin-bottom: 6px; }

.pm-verdict { margin: -4px 0 14px; font-weight: 700; font-size: 15px; color: var(--muted); }
.pm-verdict[data-band="great"] { color: var(--up); }
.pm-verdict[data-band="fair"] { color: var(--ice); }
.pm-verdict[data-band="high"] { color: var(--gold); }
.pm-verdict[data-band="very-high"], .pm-verdict[data-band="below"] { color: var(--down); }
.premium-tool .calc-fields { align-content: start; }

@media (min-width: 900px) {
  .coin-detail { grid-template-columns: 1.3fr 1fr; align-items: start; gap: 40px; }
  .spec-card { padding: 28px; }
}

/* =========================================================
   Content pages (about, legal, contact)
   ========================================================= */
.page-hero { padding-bottom: 8px; }
.page-hero h1 { font-size: clamp(38px, 10vw, 60px); margin: 8px 0 12px; }
.updated-note { margin-top: 14px; font-size: 13px; font-weight: 700; color: var(--faint); letter-spacing: .04em; }
.section-tight { padding-top: 28px; }

.prose { padding: 24px 20px; border-radius: var(--r-lg); font-size: 16px; }
.prose > * + * { margin-top: 14px; }
.prose h2 { font-size: clamp(24px, 6vw, 30px); margin-top: 36px; scroll-margin-top: calc(var(--header-h) + 16px); }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-family: var(--font); font-size: 16px; font-weight: 800; margin-top: 22px; }
.prose p, .prose li { color: #c3c9d2; }
.prose strong { color: var(--text); }
.prose a { color: var(--ice); text-decoration: underline; text-underline-offset: 3px; text-decoration-color: rgba(159,216,255,.35); }
.prose a:hover { text-decoration-color: var(--ice); }
.prose ul, .prose ol { padding-left: 22px; }
.prose li + li { margin-top: 8px; }
.prose li::marker { color: var(--faint); }
.prose code { font-size: .9em; padding: 2px 7px; border-radius: 6px; background: rgba(255,255,255,.08); color: var(--text); }
.callout { padding: 16px 18px; border-radius: 14px; border: 1px solid rgba(233,199,123,.35); background: rgba(233,199,123,.08); color: #e9dcc0; }
.callout strong { color: var(--gold); }
.formula { padding: 16px 18px; font-weight: 700; font-size: 15px; line-height: 1.9; text-align: center; }
.formula span { display: inline-block; padding: 2px 10px; border-radius: 8px; background: rgba(255,255,255,.07); color: var(--text); }
.formula span:first-child { background: var(--silver-btn); color: #111419; }

.toc { padding: 18px 20px; margin-bottom: 14px; }
.toc .kicker { margin-bottom: 8px; }
.toc ol { margin: 0; padding-left: 0; list-style: none; columns: 1; font-size: 14.5px; font-weight: 600; }
.toc li { padding: 4px 0; break-inside: avoid; color: var(--faint); }
.toc a { color: var(--muted); }
.toc a:hover { color: var(--text); }

.about-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin-bottom: 14px; }
.about-stats > div { padding: 16px; display: flex; flex-direction: column; }
.about-stats strong { font: 700 clamp(28px, 8vw, 38px)/1 var(--serif); }
.about-stats span { margin-top: 6px; font-size: 12px; font-weight: 700; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }

.wrap.mid { max-width: 1088px; }
.contact-grid { display: grid; gap: 14px; }
.contact-form { padding: 20px; border-radius: var(--r-lg); display: grid; gap: 16px; }
.field-row { display: grid; gap: 16px; }
.contact-form input[type="text"], .contact-form input[type="email"], .contact-form textarea {
  width: 100%; padding: 0 16px; height: 52px; border-radius: 14px;
  background: rgba(0,0,0,.35); border: 1px solid var(--line-strong); font-size: 16px; font-weight: 600;
  transition: border-color .2s, box-shadow .2s;
}
.contact-form textarea { height: auto; min-height: 150px; padding: 14px 16px; resize: vertical; line-height: 1.5; font-weight: 500; }
.contact-form textarea:focus { outline: none; border-color: rgba(159,216,255,.6); box-shadow: 0 0 0 4px rgba(159,216,255,.12); }
.contact-form .field output { font-weight: 600; color: var(--faint); }
.contact-form .btn { justify-self: start; }
.form-note { font-size: 13px; color: var(--faint); }
.form-note a { color: var(--muted); text-decoration: underline; }
.contact-side { display: grid; gap: 10px; align-content: start; }
.contact-card { padding: 18px 20px; }
.contact-card h2 { font-size: 20px; margin-bottom: 6px; }
.contact-card p { color: var(--muted); font-size: 14.5px; margin-bottom: 10px; }
.contact-card a { color: var(--ice); font-weight: 700; word-break: break-all; }
.small-note { font-size: 13px; padding: 4px 4px 0; }

.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 10px 20px; margin-top: 12px; }
.footer-bottom .copy { margin: 0; }
.legal-links { display: flex; flex-wrap: wrap; gap: 6px 18px; font-size: 13px; }
.legal-links a { color: var(--muted); }
.legal-links a:hover { color: var(--text); }

@media (min-width: 640px) {
  .prose { padding: 36px 40px; font-size: 16.5px; }
  .toc ol { columns: 2; column-gap: 32px; }
  .about-stats { grid-template-columns: repeat(4, 1fr); }
  .field-row { grid-template-columns: 1fr 1fr; }
  .contact-form { padding: 28px; }
}
@media (min-width: 900px) {
  .contact-grid { grid-template-columns: 1.5fr 1fr; align-items: start; }
  .toc ol { columns: 3; }
}

/* =========================================================
   Realistic silver (html.fx) — light position comes from --lx / --ly (0–1)
   set by app.js from pointer, device tilt or scroll. ?fx=off disables.
   ========================================================= */
:root { --lx: .5; --ly: .3; }

/* Polished-chrome banding: reflections are sharp bands, not a soft gradient */
html.fx .metal {
  background-image:
    linear-gradient(180deg, rgba(255,255,255,.35) 0%, rgba(255,255,255,0) 46%, rgba(0,0,0,.18) 100%),
    linear-gradient(100deg, #6c737d 0%, #c9ced6 10%, #ffffff 19%, #a9b0ba 31%, #eef1f4 43%, #767d87 56%, #dfe3e8 68%, #ffffff 78%, #98a0ab 90%, #d5d9df 100%);
  background-size: 100% 100%, 280% 100%;
  background-position: 0 0, calc(var(--lx) * 100%) 50%;
  animation: none;
  filter: drop-shadow(0 1px 0 rgba(0,0,0,.55)) drop-shadow(0 -1px 0 rgba(255,255,255,.06));
}

html.fx .btn-primary {
  background-image:
    linear-gradient(180deg, rgba(255,255,255,.85) 0%, rgba(255,255,255,0) 50%, rgba(0,0,0,.08) 100%),
    linear-gradient(100deg, #a9b0ba 0%, #f7f8fa 22%, #c1c7cf 42%, #ffffff 60%, #b3bac3 80%, #eef1f4 100%);
  background-size: 100% 100%, 260% 100%;
  background-position: 0 0, calc(var(--lx) * 100%) 0;
}

/* Small coins: anisotropic (radial-brushed) reflection that turns with the light */
html.fx .brand-coin,
html.fx .mini-coin {
  background:
    radial-gradient(circle at calc(18% + var(--lx) * 44%) calc(14% + var(--ly) * 44%), rgba(255,255,255,.95), rgba(255,255,255,0) 36%),
    conic-gradient(from calc(var(--lx) * 300deg), #f4f6f8, #8f97a2 12%, #e8ebef 25%, #6f7782 38%, #f7f8fa 50%, #9aa2ad 63%, #eceff2 75%, #7a828d 88%, #f4f6f8);
}

html.fx .price-card::before {
  background: linear-gradient(calc(100deg + var(--lx) * 160deg), rgba(255,255,255,.55), rgba(255,255,255,0) 32%, rgba(255,255,255,0) 68%, rgba(190,220,255,.35));
}

/* ---------- 3D hero coin ---------- */
.hero-3d .coin3d-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; transition: opacity 1s ease; touch-action: pan-y; cursor: grab;
}
.hero-3d .coin3d-canvas:active { cursor: grabbing; }
.hero-3d.is-3d .coin3d-canvas { opacity: 1; }
.hero-3d .coin { transition: opacity .6s ease; }
.hero-3d.is-3d .coin { opacity: 0; }

@media (max-width: 899px) {
  .hero-grid:has(.hero-3d) { position: relative; }
  html.fx .hero-3d {
    display: block; position: absolute; top: -6px; right: 10px;
    width: 116px; height: 116px; pointer-events: auto;
  }
  html.fx .hero-3d .coin-stage { display: none; }
  html.fx .hero-grid:has(.hero-3d) h1 { padding-right: 96px; }
}
@media (min-width: 900px) {
  .hero-3d { position: relative; min-height: 460px; }
  .hero-3d .coin-stage { position: absolute; inset: 0; margin: auto; }
  .hero-3d .coin-shadow { bottom: 8px; }
}

/* =========================================================
   Amazon affiliate picks
   ========================================================= */
.amazon-grid { display: grid; gap: 10px; }
.amazon-card {
  display: grid; grid-template-columns: auto 1fr; gap: 6px 14px; align-items: center;
  padding: 16px; transition: transform .2s, border-color .2s;
}
.amazon-card:hover { transform: translateY(-2px); border-color: rgba(255, 180, 70, .45); }
.amazon-info { display: flex; flex-direction: column; min-width: 0; }
.amazon-info strong { font-size: 15.5px; font-weight: 800; }
.amazon-info small { font-size: 12.5px; font-weight: 600; }
.amazon-value { margin-top: 6px; font-size: 13px; color: var(--muted); font-weight: 600; }
.amazon-value .px { color: var(--text); font-weight: 800; }
.amazon-value em { font-style: normal; color: var(--faint); font-size: 11.5px; }
.amazon-cta {
  grid-column: 1 / -1; margin-top: 8px;
  display: flex; align-items: center; justify-content: center; gap: 6px;
  height: 44px; border-radius: 999px; font-weight: 800; font-size: 14px; color: #1a1206;
  background: linear-gradient(180deg, #ffd88a, #f7b733);
  box-shadow: 0 8px 22px -10px rgba(247, 183, 51, .7), inset 0 1px 0 rgba(255,255,255,.6);
}
.amazon-card:hover .amazon-cta { filter: brightness(1.05); }
.amazon-disclosure { margin-top: 14px; font-size: 12.5px; color: var(--faint); }

@media (min-width: 640px) {
  .amazon-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 900px) {
  .amazon-grid { grid-template-columns: repeat(3, 1fr); }
  .amazon-grid:has(> :nth-child(4)) { grid-template-columns: repeat(4, 1fr); }
  .amazon-card { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
  .amazon-cta { width: 100%; margin-top: auto; }
  .amazon-info { margin-bottom: 8px; }
}