/* mSamex — Prestige card designs (Sterling / Aurum / Void) */

:root {
  --pg-pad: clamp(24px, 6vw, 96px);
}
html { scroll-behavior: smooth; }
body { overflow-x: hidden; }
.mono { font-family: var(--m3-mono); font-variant-numeric: tabular-nums; }
.k { font-family: var(--m3-mono); font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--m3-mute); }
.k.mint { color: var(--m3-mint); }

/* ============ page chrome ============ */
.topbar {
  position: fixed; inset: 0 0 auto 0; z-index: 40; height: 60px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--pg-pad);
  background: rgba(11, 14, 17, 0.85); backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--m3-line-soft);
}
.tb-brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 16px; letter-spacing: -0.03em; text-decoration: none; color: inherit; }
.tb-brand .s { color: var(--m3-mint); }
.tb-brand .tag { font-family: var(--m3-mono); font-size: 10px; letter-spacing: 0.18em; color: var(--m3-mute); margin-top: 2px; }
.tb-nav { display: flex; gap: 8px; }
.tb-nav a {
  font-family: var(--m3-mono); font-size: 11px; letter-spacing: 0.08em; text-decoration: none;
  color: var(--m3-mute); padding: 7px 13px; border: 1px solid transparent; border-radius: 999px;
  transition: color 0.15s, border-color 0.15s;
}
.tb-nav a:hover { color: var(--m3-snow); border-color: var(--m3-line); }

/* ============ hero ============ */
.hero {
  min-height: 100vh; display: flex; flex-direction: column; justify-content: center;
  padding: 120px var(--pg-pad) 60px; position: relative;
}
.hero h1 {
  font-size: clamp(44px, 7.4vw, 104px); font-weight: 700; letter-spacing: -0.05em;
  line-height: 0.98; margin: 18px 0 22px; max-width: 11ch;
}
.hero h1 em { font-style: normal; color: var(--m3-mint); }
.hero p { max-width: 46ch; color: var(--m3-snow-dim); font-size: clamp(14px, 1.4vw, 17px); line-height: 1.6; margin: 0 0 34px; }
.hero-fan { position: absolute; right: calc(var(--pg-pad) * 0.6); top: 50%; transform: translateY(-50%); display: none; }
@media (min-width: 1080px) { .hero-fan { display: block; } }
.hero-fan .fan-slot { position: absolute; right: 0; top: 0; transition: transform 0.5s cubic-bezier(0.2, 0.8, 0.2, 1); }
.engrave {
  display: flex; align-items: center; gap: 12px; max-width: 430px;
  border: 1px solid var(--m3-line); border-radius: 16px; padding: 6px 8px 6px 18px;
  background: var(--m3-surface);
}
.engrave label { font-family: var(--m3-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--m3-mute); white-space: nowrap; }
.engrave input {
  flex: 1; min-width: 0; background: none; border: none; outline: none;
  color: var(--m3-snow); font-family: var(--m3-mono); font-size: 14px;
  letter-spacing: 0.14em; text-transform: uppercase; padding: 12px 0;
}
.engrave button {
  background: var(--m3-mint); color: var(--m3-ink); border: none; cursor: pointer;
  font-weight: 600; font-size: 13px; font-family: var(--m3-font);
  padding: 11px 18px; border-radius: 11px;
}
.scroll-hint { position: absolute; bottom: 28px; left: var(--pg-pad); font-family: var(--m3-mono); font-size: 10.5px; letter-spacing: 0.16em; color: var(--m3-snow-mute); }

/* ============ tier sections ============ */
.tier {
  display: grid; grid-template-columns: 1fr; gap: 48px;
  padding: clamp(70px, 11vh, 130px) var(--pg-pad);
  border-top: 1px solid var(--m3-line-soft); position: relative;
  align-items: center;
}
@media (min-width: 980px) { .tier { grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: clamp(48px, 6vw, 110px); } }
.tier.alt { direction: rtl; }
.tier.alt > * { direction: ltr; }
.tier-stage { display: flex; justify-content: center; perspective: 1400px; }
.tier-copy .num { font-family: var(--m3-mono); font-size: 12px; color: var(--m3-mint); letter-spacing: 0.14em; }
.tier-copy h2 { font-size: clamp(38px, 4.6vw, 64px); font-weight: 700; letter-spacing: -0.045em; margin: 12px 0 4px; line-height: 1; }
.tier-copy .sub { font-size: 15px; color: var(--m3-snow-mute); margin: 6px 0 20px; }
.tier-copy .story { font-size: 15px; line-height: 1.65; color: var(--m3-snow-dim); max-width: 52ch; margin: 0 0 26px; }
.spec-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1px; background: var(--m3-line-soft); border: 1px solid var(--m3-line-soft); border-radius: 14px; overflow: hidden; margin-bottom: 26px; }
.spec-cell { background: var(--m3-bg); padding: 14px 16px; }
.spec-cell .v { font-family: var(--m3-mono); font-size: 15px; font-weight: 600; }
.spec-cell .l { font-family: var(--m3-mono); font-size: 9px; letter-spacing: 0.14em; color: var(--m3-mute); text-transform: uppercase; margin-top: 4px; }
.perks { list-style: none; margin: 0 0 30px; padding: 0; display: flex; flex-direction: column; }
.perks li { display: flex; gap: 12px; align-items: baseline; padding: 11px 0; font-size: 14px; color: var(--m3-snow-dim); border-bottom: 1px solid var(--m3-line-soft); }
.perks li::before { content: "—"; color: var(--m3-mint); flex-shrink: 0; }
.tier-cta { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; }
.void-wait { margin-top: 18px; max-width: 520px; }
.void-wait .vw-row { display: flex; gap: 8px; flex-wrap: wrap; }
.void-wait input {
  flex: 1; min-width: 140px; background: var(--m3-surface); border: 1px solid var(--m3-line);
  border-radius: 12px; padding: 13px 16px; color: var(--m3-snow); outline: none;
  font-family: var(--m3-mono); font-size: 12.5px; letter-spacing: 0.04em;
}
.void-wait input:focus { border-color: var(--m3-mint); }
.void-wait input::placeholder { color: var(--m3-mute); }
.vw-note { font-size: 9px; letter-spacing: 0.14em; color: var(--m3-snow-mute); margin-top: 12px; }
.vw-done { color: var(--m3-mint); font-size: 14px; font-weight: 600; }
.cta {
  display: inline-flex; align-items: center; gap: 9px; cursor: pointer; border: none;
  background: var(--m3-mint); color: var(--m3-ink); font-family: var(--m3-font);
  font-size: 14.5px; font-weight: 600; padding: 15px 28px; border-radius: 14px;
}
.cta.ghost { background: transparent; color: var(--m3-snow); border: 1px solid var(--m3-line); }
.cta-fee { font-family: var(--m3-mono); font-size: 12.5px; color: var(--m3-mute); }
.flip-hint { font-family: var(--m3-mono); font-size: 10px; letter-spacing: 0.14em; color: var(--m3-snow-mute); text-align: center; margin-top: 18px; }

/* reveal on scroll */
.rv { opacity: 0; transform: translateY(28px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.8, 0.2, 1); }
.rv.vis { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .rv { opacity: 1; transform: none; transition: none; } }

/* ============ the cards ============ */
.pcard {
  width: min(86vw, 470px); aspect-ratio: 1.586; position: relative;
  cursor: pointer; transform-style: preserve-3d;
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform 0.18s ease-out;
  font-size: clamp(11px, calc(min(86vw, 470px) / 32), 15px);
}
.pcard.flipped { transform: rotateX(var(--rx, 0deg)) rotateY(calc(var(--ry, 0deg) + 180deg)); }
.pcard.small { width: 300px; font-size: 9.5px; cursor: default; }
.pc-face {
  position: absolute; inset: 0; border-radius: 7.5%/12%; overflow: hidden;
  backface-visibility: hidden; -webkit-backface-visibility: hidden;
  box-shadow: 0 40px 90px rgba(0, 0, 0, 0.55), 0 8px 22px rgba(0, 0, 0, 0.4);
}
.pc-back { transform: rotateY(180deg); }
.pc-metal { position: absolute; inset: 0; }
.pc-brush {
  position: absolute; inset: 0; opacity: 0.5;
  background: repeating-linear-gradient(100deg, rgba(255, 255, 255, 0.05) 0 1px, rgba(0, 0, 0, 0.04) 1px 2px, transparent 2px 4px);
}
.pc-spec {
  position: absolute; inset: 0; pointer-events: none; mix-blend-mode: soft-light;
  background: radial-gradient(340px circle at var(--mx, 50%) var(--my, 40%), rgba(255, 255, 255, 0.9), transparent 62%);
  opacity: var(--spec, 0.55); transition: opacity 0.3s;
}
.pc-mesh { position: absolute; pointer-events: none; }
.pc-edge { position: absolute; inset: 0; border-radius: inherit; pointer-events: none; }

.pc-top { position: absolute; top: 7%; left: 6.5%; right: 6.5%; display: flex; justify-content: space-between; align-items: flex-start; }
.pc-word { font-weight: 700; letter-spacing: -0.04em; font-size: 1.35em; }
.pc-word .s { color: var(--m3-mint); }
.pc-tiername { font-family: var(--m3-mono); font-size: 0.72em; letter-spacing: 0.3em; text-transform: uppercase; opacity: 0.62; margin-top: 0.4em; display: block; }
.pc-virt { display: inline-block; font-family: var(--m3-mono); font-size: 0.58em; letter-spacing: 0.18em; padding: 0.3em 0.7em; border: 1px solid currentColor; border-radius: 999px; opacity: 0.55; margin-top: 0.6em; }
.pc-chip {
  position: absolute; left: 6.5%; top: 34%; width: 12.5%; aspect-ratio: 1.25; border-radius: 18%;
  background: linear-gradient(145deg, rgba(255, 255, 255, 0.32), rgba(0, 0, 0, 0.18));
  box-shadow: inset 0 0 0 1px rgba(0, 0, 0, 0.25), inset 0 2px 3px rgba(255, 255, 255, 0.3);
}
.pc-chip::after { content: ""; position: absolute; inset: 22% 12%; border: 1px solid rgba(0, 0, 0, 0.28); border-radius: 3px; }
.pc-num { position: absolute; left: 6.5%; bottom: 26%; font-family: var(--m3-mono); font-size: 1.06em; letter-spacing: 0.22em; }
.pc-holderline { position: absolute; left: 6.5%; right: 6.5%; bottom: 8.5%; display: flex; justify-content: space-between; align-items: flex-end; }
.pc-name { font-family: var(--m3-mono); font-size: 0.78em; letter-spacing: 0.24em; text-transform: uppercase; }
.pc-exp { font-family: var(--m3-mono); font-size: 0.72em; letter-spacing: 0.18em; opacity: 0.7; margin-top: 0.5em; }
.pc-net { display: flex; }
.pc-net i { display: block; width: 1.9em; height: 1.9em; border-radius: 50%; border: 1.5px solid currentColor; opacity: 0.55; }
.pc-net i + i { margin-left: -0.7em; }

/* --- back face --- */
.pc-back .pc-metal { filter: brightness(0.92); }
.pc-serial { position: absolute; top: 9%; left: 6.5%; font-family: var(--m3-mono); font-size: 0.78em; letter-spacing: 0.3em; opacity: 0.75; }
.pc-backmesh { position: absolute; right: -14%; bottom: -30%; width: 60%; opacity: 0.5; }
.pc-backmid { position: absolute; left: 6.5%; right: 6.5%; top: 38%; }
.pc-backmid .bl { font-family: var(--m3-mono); font-size: 0.68em; letter-spacing: 0.2em; text-transform: uppercase; opacity: 0.6; }
.pc-backmid .bv { font-family: var(--m3-mono); font-size: 1em; letter-spacing: 0.24em; margin: 0.4em 0 1.4em; }
.pc-backfoot { position: absolute; left: 6.5%; right: 6.5%; bottom: 8%; display: flex; justify-content: space-between; font-family: var(--m3-mono); font-size: 0.6em; letter-spacing: 0.16em; opacity: 0.55; text-transform: uppercase; }

/* ---------- PULSE (soft-touch PVC) ---------- */
.t-pulse { color: rgba(255, 255, 255, 0.85); }
.t-pulse .pc-metal { background: #101318; }
.t-pulse .pc-brush { opacity: 0.15; }
.t-pulse .pc-edge { box-shadow: inset 0 0 0 1.5px rgba(0, 214, 143, 0.28); }
.t-pulse .pc-spec { mix-blend-mode: screen; --spec: 0.12; }
.t-pulse .pc-chip { background: linear-gradient(145deg, rgba(255, 255, 255, 0.18), rgba(0, 0, 0, 0.4)); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12); }
.t-pulse .pc-word .s { color: var(--m3-mint); }

/* ---------- GRAPHITE (dark brushed steel) ---------- */
.t-graphite { color: rgba(255, 255, 255, 0.88); }
.t-graphite .pc-metal { background: linear-gradient(160deg, #2b3037 0%, #1e2228 34%, #272c33 58%, #181c21 82%, #232830 100%); }
.t-graphite .pc-edge { box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, 0.22); }
.t-graphite .pc-spec { mix-blend-mode: screen; --spec: 0.2; }
.t-graphite .pc-chip { background: linear-gradient(145deg, rgba(255, 255, 255, 0.2), rgba(0, 0, 0, 0.45)); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.14); }
.t-graphite .pc-word .s { color: var(--m3-mint); }

/* ---------- STERLING (silver) ---------- */
.t-sterling { color: #22262c; }
.t-sterling .pc-metal {
  background: linear-gradient(160deg, #dde1e6 0%, #b3b9c1 26%, #d2d6dc 46%, #969da7 72%, #c3c8cf 100%);
}
.t-sterling .pc-edge { box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, 0.55), inset 0 0 0 3px rgba(0, 0, 0, 0.08); }
.t-sterling .pc-name, .t-sterling .pc-num, .t-sterling .pc-serial { text-shadow: 0 1px 0 rgba(255, 255, 255, 0.5); }
.t-sterling .pc-word .s { color: #009e6a; }

/* ---------- AURUM (champagne gold) ---------- */
.t-aurum { color: #2b2416; }
.t-aurum .pc-metal {
  background: linear-gradient(160deg, #e6d6b2 0%, #c2a671 28%, #dcc99c 48%, #a68c58 74%, #cdb37f 100%);
}
.t-aurum .pc-edge { box-shadow: inset 0 0 0 1.5px rgba(255, 244, 214, 0.6), inset 0 0 0 3px rgba(64, 48, 16, 0.14); }
.t-aurum .pc-spec { --spec: 0.7; }
.t-aurum .pc-name, .t-aurum .pc-num, .t-aurum .pc-serial { text-shadow: 0 1px 0 rgba(255, 244, 214, 0.45); }
.t-aurum .pc-word .s { color: #00744e; }

/* ---------- VOID (VIP black) ---------- */
.t-void { color: rgba(255, 255, 255, 0.82); }
.t-void .pc-metal { background: radial-gradient(120% 160% at 26% 0%, #16191e 0%, #0a0c0f 55%, #060709 100%); }
.t-void .pc-brush { opacity: 0.35; }
.t-void .pc-edge { box-shadow: inset 0 0 0 1.5px rgba(255, 255, 255, 0.14); }
.t-void .pc-spec { mix-blend-mode: screen; --spec: 0.16; }
.t-void .pc-chip { background: linear-gradient(145deg, rgba(255, 255, 255, 0.14), rgba(0, 0, 0, 0.5)); box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.12); }
.t-void .pc-word { color: rgba(255, 255, 255, 0.92); }
.t-void .pc-word .s { color: var(--m3-mint); }
.t-void .pc-tiername { color: rgba(255, 255, 255, 0.4); }

/* ============ compare ============ */
.compare { padding: clamp(70px, 10vh, 120px) var(--pg-pad); border-top: 1px solid var(--m3-line-soft); }
.compare h3 { font-size: clamp(26px, 3vw, 38px); font-weight: 700; letter-spacing: -0.04em; margin: 12px 0 34px; }
.cmp-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); gap: 1px; background: var(--m3-line-soft); border: 1px solid var(--m3-line-soft); border-radius: 18px; overflow: hidden; }
.cmp-col { background: var(--m3-bg); padding: 26px 24px; }
.cmp-col.hot { background: var(--m3-surface); }
.cmp-col .cn { font-size: 19px; font-weight: 700; letter-spacing: -0.02em; }
.cmp-col .cf { font-family: var(--m3-mono); font-size: 12.5px; color: var(--m3-mint); margin: 6px 0 18px; }
.cmp-col ul { list-style: none; margin: 0; padding: 0; }
.cmp-col li { font-size: 13px; color: var(--m3-snow-dim); padding: 8px 0; border-bottom: 1px solid var(--m3-line-soft); }
.cmp-col li:last-child { border-bottom: none; }

.foot { padding: 60px var(--pg-pad) 80px; border-top: 1px solid var(--m3-line-soft); display: flex; justify-content: space-between; gap: 20px; flex-wrap: wrap; align-items: center; }
.foot .note { font-size: 13.5px; color: var(--m3-snow-mute); max-width: 52ch; line-height: 1.6; }
.foot a { color: var(--m3-mint); text-decoration: none; }