/* tslarh — tesla.com clone for $TSLA, reskinned in BNB gold on Binance night */

/* Tesla's actual typeface (Universal Sans), hotlinked from their design-system CDN
   like the hero images; Montserrat stays in the stack as the fallback. */

@font-face {
  font-family: "Universal Sans Display";
  src: url("https://digitalassets.tesla.com/tesla-design-system/raw/upload/static/fonts/universal-sans-2/web/display/Universal-Sans-Display-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Universal Sans Display";
  src: url("https://digitalassets.tesla.com/tesla-design-system/raw/upload/static/fonts/universal-sans-2/web/display/Universal-Sans-Display-Medium.woff2") format("woff2");
  font-weight: 500 600;
  font-display: swap;
}
@font-face {
  font-family: "Universal Sans Display";
  src: url("https://digitalassets.tesla.com/tesla-design-system/raw/upload/static/fonts/universal-sans-2/web/display/Universal-Sans-Display-Bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}
@font-face {
  font-family: "Universal Sans Text";
  src: url("https://digitalassets.tesla.com/tesla-design-system/raw/upload/static/fonts/universal-sans-2/web/text/Universal-Sans-Text-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Universal Sans Text";
  src: url("https://digitalassets.tesla.com/tesla-design-system/raw/upload/static/fonts/universal-sans-2/web/text/Universal-Sans-Text-Medium.woff2") format("woff2");
  font-weight: 500 600;
  font-display: swap;
}
@font-face {
  font-family: "Universal Sans Text";
  src: url("https://digitalassets.tesla.com/tesla-design-system/raw/upload/static/fonts/universal-sans-2/web/text/Universal-Sans-Text-Bold.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

:root {
  --ink: #eaecef;        /* binance body text */
  --ink-soft: #b7bdc6;   /* binance grey */
  --paper: #0b0e11;      /* binance night */
  --card: #1e2329;
  --soft: #181a20;
  --gold: #f0b90b;       /* BNB gold */
  --gold-bright: #fcd535;
  --up: #0ecb81;         /* binance candle green */
  --down: #f6465d;       /* binance candle red */
  --btn-w: 264px;
  --font: "IBM Plex Sans", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-display: "Universal Sans Display", "IBM Plex Sans", "Noto Sans SC", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html, body { height: 100%; }

body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}

/* ---------- Nav ---------- */

.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 32px;
  height: 56px;
  color: var(--ink);
  transition: color .4s ease;
}

.nav.nav--light { color: #fff; }

.nav__logo {
  font-family: var(--font-display);
  font-size: 17px;
  font-weight: 600;
  letter-spacing: 7px;
  text-decoration: none;
  color: inherit;
  white-space: nowrap;
}

.nav__logo-cn {
  margin-left: 10px;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 3px;
  color: var(--gold);
}

.nav__center {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 4px;
}

.nav__center a,
.nav__menu {
  font-family: var(--font);
  font-size: 13px;
  font-weight: 500;
  color: inherit;
  text-decoration: none;
  padding: 6px 14px;
  border-radius: 12px;
  border: none;
  background: transparent;
  cursor: pointer;
  transition: background-color .3s ease;
}

.nav__center a:hover,
.nav__menu:hover { background: rgba(255, 255, 255, .12); color: var(--gold-bright); }

.nav--light .nav__center a:hover,
.nav--light .nav__menu:hover { background: rgba(255, 255, 255, .14); }

.nav__center a.nav__gold { color: var(--gold-bright); font-weight: 600; }

/* ---------- Drawer ---------- */

.drawer {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(310px, 85vw);
  background: var(--soft);
  z-index: 70;
  padding: 70px 36px 36px;
  transform: translateX(100%);
  transition: transform .4s cubic-bezier(.5, 0, .3, 1);
  overflow-y: auto;
}

.drawer.open { transform: translateX(0); }

.drawer__close {
  position: absolute;
  top: 18px; right: 24px;
  background: none;
  border: none;
  font-size: 16px;
  color: var(--ink);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
}
.drawer__close:hover { background: rgba(255,255,255,.08); }

.drawer__links { display: flex; flex-direction: column; gap: 2px; }

.drawer__links a {
  color: var(--ink);
  text-decoration: none;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 14px;
  border-radius: 10px;
  transition: background-color .25s ease;
}
.drawer__links a:hover { background: rgba(240,185,11,.1); color: var(--gold-bright); }

.scrim {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.35);
  backdrop-filter: blur(2px);
  z-index: 60;
  opacity: 0;
  pointer-events: none;
  transition: opacity .4s ease;
}
.scrim.show { opacity: 1; pointer-events: auto; }

/* ---------- Scroll-snap panels ---------- */

.snap {
  height: 100dvh;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scroll-behavior: smooth;
}

.panel {
  position: relative;
  height: 100dvh;
  scroll-snap-align: start;
  display: flex;
  flex-direction: column;
  align-items: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

/* Binance-night wash over the hero photos so white copy and gold accents stay legible. */

.panel--model-s::before,
.panel--model-3::before,
.panel--model-x::before,
.panel--model-y::before,
.panel--cybertruck::before,
.panel--solar::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg,
    rgba(11, 14, 17, .78) 0%,
    rgba(11, 14, 17, .28) 34%,
    rgba(11, 14, 17, .34) 62%,
    rgba(11, 14, 17, .88) 100%);
  pointer-events: none;
}

/* Real Tesla marketing heroes, hotlinked from Tesla's CDN; gradients show if the CDN blips. */

.panel--model-s {
  background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Model-S-Desktop-LHD.jpg"),
    linear-gradient(180deg, #f2f5f7 0%, #dbe3e9 45%, #c7d1da 70%, #93a5b1 100%);
}
.panel--model-3 {
  background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Model-3-Desktop-LHD.jpg"),
    linear-gradient(180deg, #eef4f8 0%, #dfe9f0 40%, #b8cad9 75%, #9fb6c9 100%);
}
.panel--model-x {
  background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Model-X-Desktop-LHD.jpg"),
    linear-gradient(180deg, #45586a 0%, #2c3b4a 55%, #1c2733 100%);
}
.panel--model-y {
  background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Model-Y-Global-Desktop.jpg"),
    linear-gradient(180deg, #ece7de 0%, #e8e2d8 40%, #cfc2ae 75%, #b9ab98 100%);
}
.panel--cybertruck {
  background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Cybertruck-Desktop-v2.jpg"),
    linear-gradient(180deg, #23272c 0%, #15181c 55%, #0d0f12 100%);
}
.panel--solar {
  background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Card-Solar-Roof-Desktop-v2.jpg"),
    linear-gradient(180deg, #274b52 0%, #16333c 55%, #0f1e24 100%);
}

@media (max-width: 860px) {
  .panel--model-s {
    background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Model-S-Mobile-LHD.jpg"),
      linear-gradient(180deg, #f2f5f7 0%, #dbe3e9 45%, #c7d1da 70%, #93a5b1 100%);
  }
  .panel--model-3 {
    background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Promo-Model-3-Mobile-US.jpg"),
      linear-gradient(180deg, #eef4f8 0%, #dfe9f0 40%, #b8cad9 75%, #9fb6c9 100%);
  }
  .panel--model-x {
    background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Model-X-Mobile-LHD.jpg"),
      linear-gradient(180deg, #45586a 0%, #2c3b4a 55%, #1c2733 100%);
  }
  .panel--model-y {
    background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Vehicle-Card-Model-Y-Mobile-US-Snow.jpg"),
      linear-gradient(180deg, #ece7de 0%, #e8e2d8 40%, #cfc2ae 75%, #b9ab98 100%);
  }
  .panel--cybertruck {
    background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Cybertruck-Mobile-v2.jpg"),
      linear-gradient(180deg, #23272c 0%, #15181c 55%, #0d0f12 100%);
  }
  .panel--solar {
    background-image: url("https://digitalassets.tesla.com/tesla-contents/image/upload/f_auto,q_auto/Homepage-Card-Solar-Roof-Mobile-v2.jpg"),
      linear-gradient(180deg, #274b52 0%, #16333c 55%, #0f1e24 100%);
  }
}

.panel[data-theme="dark"] { color: #fff; }
.panel[data-theme="light"] { color: var(--ink); }

.panel__text {
  position: relative;
  z-index: 1;
  margin-top: 14dvh;
  text-align: center;
  padding: 0 20px;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .9s ease, transform .9s ease;
}

.panel__eyebrow {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 6px;
  color: var(--gold-bright);
  margin-bottom: 10px;
}

.panel__eyebrow::before,
.panel__eyebrow::after {
  content: "◆";
  font-size: 9px;
  vertical-align: 2px;
  color: var(--gold);
}
.panel__eyebrow::before { margin-right: 12px; }
.panel__eyebrow::after { margin-left: 6px; } /* tracking already pads the right side */

.panel.in-view .panel__text { opacity: 1; transform: none; }

.panel__text h1 {
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 500;
  letter-spacing: .4px;
}

.panel__sub {
  margin-top: 8px;
  font-size: 14px;
  font-weight: 400;
  opacity: .92;
}

.panel__sub2 {
  margin-top: 4px;
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .4px;
  opacity: .78;
}

.stat { font-variant-numeric: tabular-nums; }
.stat--flash { color: var(--gold-bright); font-weight: 600; }

/* ---------- Buttons ---------- */

.panel__actions {
  position: absolute;
  z-index: 1;
  bottom: 9dvh;
  left: 0; right: 0;
  display: flex;
  justify-content: center;
  gap: 20px;
  padding: 0 24px;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity .9s ease .15s, transform .9s ease .15s;
}

.panel.in-view .panel__actions { opacity: 1; transform: none; }

.btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: var(--btn-w);
  max-width: 45vw;
  height: 40px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  letter-spacing: .3px;
  transition: background-color .3s ease, box-shadow .3s ease;
}

.btn--primary {
  background: var(--gold-bright);
  color: #181a20;
}
.btn--primary:hover {
  background: var(--gold);
  box-shadow: 0 8px 24px rgba(240, 185, 11, .35);
}

.btn--secondary {
  background: rgba(24, 26, 32, .72);
  color: var(--ink);
  backdrop-filter: blur(6px);
}
.btn--secondary:hover { background: rgba(24, 26, 32, .92); }

/* ---------- Chevron ---------- */

.panel__chevron {
  position: absolute;
  z-index: 1;
  bottom: 2.5dvh;
  left: 50%;
  transform: translateX(-50%);
  animation: bounce 1.8s infinite;
  opacity: .85;
}

@keyframes bounce {
  0%, 100% { transform: translate(-50%, 0); }
  50% { transform: translate(-50%, 9px); }
}

/* ---------- Full Self-Trading card ---------- */

.panel--fst {
  background: var(--paper);
  justify-content: center;
  padding: 76px clamp(16px, 3vw, 40px) 28px;
}

.fst__card {
  width: min(1240px, 100%);
  flex: 1;
  min-height: 0;
  max-height: 780px;
  background: var(--card);
  border-radius: 12px;
  padding: clamp(24px, 3.5vw, 56px);
  display: grid;
  grid-template-columns: 1fr 1.15fr;
  gap: clamp(24px, 3vw, 48px);
  align-items: center;
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .9s ease, transform .9s ease;
}

.panel.in-view .fst__card { opacity: 1; transform: none; }

.fst__copy {
  min-width: 0;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 18px;
}

.fst__title {
  font-family: var(--font-display);
  font-size: clamp(30px, 3.4vw, 44px);
  font-weight: 500;
  letter-spacing: .2px;
  line-height: 1.15;
  background: linear-gradient(100deg, #eaecef 0%, #f0b90b 46%, #fcd535 56%, #eaecef 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.fst__cn {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--gold);
  margin-top: -8px; /* tucks under the title inside the flex gap */
}

.fst__sub {
  font-size: 15px;
  line-height: 1.6;
  color: var(--ink-soft);
  max-width: 400px;
}

.fst__stats {
  display: flex;
  gap: clamp(28px, 3vw, 52px);
  margin-top: 6px;
}

.fst__stat { display: flex; flex-direction: column; gap: 4px; }

.fst__stat-num {
  font-family: var(--font-display);
  font-size: clamp(24px, 2.4vw, 36px);
  font-weight: 500;
  font-variant-numeric: tabular-nums;
}

.fst__stat-label { font-size: 13px; color: var(--ink-soft); }

.fst__actions {
  display: flex;
  gap: 14px;
  margin-top: 10px;
}

.fst__actions .btn { width: 180px; max-width: none; }

.btn--white {
  background: #2b3139;
  color: var(--ink);
}
.btn--white:hover { background: #363c45; }

.fst__fine { font-size: 11px; opacity: .5; }

.fst__media {
  height: 100%;
  min-height: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.fst__screen {
  position: relative;
  flex: 1;
  min-height: 0;
  border-radius: 10px;
  overflow: hidden;
  background: var(--soft);
}

.fst__screen canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}

.fst__rec {
  position: absolute;
  top: 12px;
  left: 14px;
  z-index: 2;
  color: var(--down);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  animation: rec-blink 1.6s steps(1) infinite;
}

@keyframes rec-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: .25; }
}

.fst__caption {
  font-size: 11px;
  text-align: center;
  opacity: .5;
}

/* ---------- Footer panel ---------- */

.panel--footer {
  background: radial-gradient(1100px 480px at 50% 118%, rgba(240, 185, 11, .16), transparent 60%), var(--paper);
  justify-content: center;
}

.footer__inner {
  text-align: center;
  padding: 0 24px;
  max-width: 720px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.footer__wordmark {
  font-family: var(--font-display);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: 12px;
  padding-left: 12px; /* optically recenters the tracked text */
}

.footer__cn {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 6px;
  color: var(--gold-bright);
  margin-top: -12px; /* sits tight under the wordmark inside the flex gap */
}

.footer__tagline { font-size: 14px; opacity: .75; }

.footer__cto {
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .4px;
  line-height: 1.7;
  color: var(--gold);
  max-width: 560px;
}

.footer__ca {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(240, 185, 11, .07);
  border: 1px solid rgba(240, 185, 11, .28);
  border-radius: 8px;
  padding: 12px 18px;
  color: var(--ink);
  font-family: var(--font);
  cursor: pointer;
  max-width: 100%;
  transition: background-color .3s ease, border-color .3s ease;
}
.footer__ca:hover { background: rgba(240,185,11,.12); border-color: rgba(240,185,11,.45); }

.footer__ca-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
  opacity: .6;
}

.footer__ca-value {
  font-size: 13px;
  font-variant-numeric: tabular-nums;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.footer__ca-copy {
  font-size: 12px;
  font-weight: 600;
  color: var(--gold-bright);
  flex-shrink: 0;
}

.footer__stats {
  display: flex;
  gap: 36px;
  flex-wrap: wrap;
  justify-content: center;
}

.footer__stats > div { display: flex; flex-direction: column; gap: 4px; font-size: 15px; }

.footer__stat-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 2px;
  opacity: .55;
}

.footer__links { display: flex; gap: 26px; }

.footer__links a {
  color: #fff;
  text-decoration: none;
  font-size: 13px;
  font-weight: 500;
  opacity: .85;
  transition: opacity .25s ease, color .25s ease;
}
.footer__links a:hover { opacity: 1; color: var(--gold-bright); }

.footer__legal {
  font-size: 11px;
  line-height: 1.8;
  opacity: .45;
}

/* ---------- Responsive ---------- */

@media (max-width: 860px) {
  .nav { padding: 0 16px; }
  .nav__center { display: none; }

  .panel__text { margin-top: 16dvh; }
  .panel__text h1 { font-size: 30px; }
  .panel__sub { font-size: 13px; }

  .panel__actions {
    flex-direction: column;
    align-items: center;
    gap: 12px;
    bottom: 6dvh;
  }
  .btn { width: min(90vw, 400px); max-width: none; }

  .footer__stats { gap: 22px; }
  .footer__ca-value { max-width: 46vw; }

  .panel--fst { padding: 68px 14px 18px; }
  .fst__card {
    grid-template-columns: 1fr;
    align-items: start;
    overflow: hidden;
    padding: 22px;
    gap: 18px;
  }
  .fst__copy { gap: 12px; }
  .fst__stats { gap: 24px; }
  .fst__actions { flex-direction: column; width: 100%; gap: 10px; }
  .fst__actions .btn { width: 100%; }
  .fst__media { min-height: 30dvh; }
}

@media (prefers-reduced-motion: reduce) {
  .snap { scroll-behavior: auto; }
  .panel__chevron { animation: none; }
  .panel__text, .panel__actions { transition: none; opacity: 1; transform: none; }
  .fst__rec { animation: none; }
}