/* ============================================================
   Cascade — nocturnal private-bank editorial (Slash-led)
   Obsidian canvas · Playfair Display editorial serif with one
   gold italic phrase · Inter for all UI · 2px ledger radii ·
   10px on cards/media · molten-gold gradient for charts only.
   ============================================================ */

:root {
  --obsidian: #000000;
  --carbon: #030304;
  --inkwell: #08080a;
  --graphite: #121317;
  --slate: #1c1d22;
  --iron: #2e3038;
  --steel: #464853;
  --fog: #5e616e;
  --ash: #777a88;
  --silver: #9194a1;
  --pearl: #acafb9;
  --bone: #e2e3e9;
  --paper: #ffffff;
  --ember-gold: #cc9166;
  --chalk-glow: #fff0cc;

  --font-display: "Playfair Display", Georgia, "Times New Roman", serif;
  --font-ui: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --container: 1520px;
  --gutter: clamp(1.25rem, 0.5rem + 3vw, 4rem);
  --section-gap: clamp(5rem, 3rem + 7vw, 9.5rem);

  --r-sharp: 2px;   /* buttons, inputs, nav */
  --r-card: 10px;   /* cards, media */

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 320ms;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-ui);
  font-weight: 400;
  background: var(--obsidian);
  color: var(--bone);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  font-feature-settings: "cv11", "ss01";
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, p { margin: 0; }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}
.gold { color: var(--ember-gold); }
.muted { color: var(--ash); }

/* ----------------------------- type ----------------------------- */
.display {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(2.5rem, 1rem + 5.8vw, 5.5rem);
  line-height: 1.02;
  letter-spacing: -0.025em;
  color: var(--paper);
}
.display em {
  font-style: italic;
  font-weight: 500;
  color: var(--ember-gold);
}
.title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.9rem, 1rem + 3vw, 3.4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--paper);
  max-width: 22ch;
}
.title em { font-style: italic; color: var(--ember-gold); }

.eyebrow {
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--ash);
  margin-bottom: 1.4rem;
}
.lede {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: clamp(1rem, 0.95rem + 0.35vw, 1.15rem);
  line-height: 1.6;
  color: var(--pearl);
  max-width: 56ch;
  margin-top: 1.6rem;
}

/* ----------------------------- buttons (ledger 2px) ----------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: -0.007em;
  padding: 12px 22px;
  border-radius: var(--r-sharp);
  border: 1px solid transparent;
  cursor: pointer;
  max-width: 100%;
  text-align: center;
  transition: background var(--dur) var(--ease), color var(--dur) var(--ease),
    border-color var(--dur) var(--ease);
}
.btn--lg { padding: 15px 30px; font-size: 1rem; }
.btn--filled { background: var(--paper); color: var(--obsidian); }
.btn--filled:hover { background: var(--bone); }
.btn--ghost { background: transparent; border-color: var(--fog); color: var(--bone); }
.btn--ghost:hover { border-color: var(--paper); }

/* pills / status */
.pill {
  font-family: var(--font-ui);
  font-size: 0.7rem; font-weight: 500;
  letter-spacing: 0.04em; text-transform: uppercase;
  padding: 3px 11px; border-radius: 9999px;
  border: 1px solid var(--steel); color: var(--pearl);
}
.pill--gold { color: var(--ember-gold); border-color: var(--ember-gold); }

/* ============================================================
   ANNOUNCEMENT + NAV
   ============================================================ */
.announce {
  border-bottom: 1px solid var(--iron);
  text-align: center;
  background: var(--obsidian);
}
.announce__inner {
  display: inline-block;
  padding: 9px 16px;
  font-size: 0.8rem;
  letter-spacing: 0.01em;
  color: var(--pearl);
}
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(0, 0, 0, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--iron);
}
.nav__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 16px var(--gutter);
  display: flex; align-items: center; gap: 1.5rem;
}
.wordmark {
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
  color: var(--paper);
}
.nav__links {
  display: flex; gap: 1.8rem;
  margin-left: auto;
  font-size: 0.9rem; font-weight: 500;
  color: var(--silver);
}
.nav__links a { transition: color var(--dur) var(--ease); }
.nav__links a:hover { color: var(--paper); }
.nav__cta { display: flex; gap: 0.6rem; }
.nav__cta .btn { padding: 9px 18px; font-size: 0.88rem; }
@media (max-width: 880px) {
  .nav__links { display: none; }
  .nav__inner { justify-content: space-between; }
  .nav__cta .btn--ghost { display: none; }
}

/* ============================================================
   HERO
   ============================================================ */
.hero { padding: clamp(3.5rem, 2rem + 6vw, 7rem) 0 var(--section-gap); }
.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(2rem, 1rem + 4vw, 5rem);
  align-items: center;
}
.hero .display { max-width: 15ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 2.6rem; }
@media (max-width: 920px) {
  .hero__grid { grid-template-columns: 1fr; }
  .plate { order: -1; }
}

/* dashboard plate */
.plate {
  background: var(--slate);
  border: 1px solid var(--iron);
  border-radius: var(--r-card);
  padding: 22px;
}
.plate__head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px;
}
.plate__title { font-size: 0.9rem; font-weight: 500; color: var(--bone); }
.chart {
  background: var(--inkwell);
  border: 1px solid var(--iron);
  border-radius: var(--r-sharp);
  padding: 16px 14px 10px;
}
.chart__svg { width: 100%; height: 150px; }
.chart__line { stroke-linecap: round; }
.chart__axis {
  display: flex; justify-content: space-between;
  margin-top: 8px;
  font-size: 0.72rem; color: var(--ash);
}
.ledger { margin: 18px 0; display: grid; gap: 2px; }
.ledger li {
  display: flex; align-items: center; gap: 10px;
  padding: 11px 0;
  border-top: 1px solid var(--iron);
  font-size: 0.92rem; color: var(--bone);
}
.ledger li:first-child { border-top: 0; }
.ledger__dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--ember-gold); flex: none;
}
.ledger__status {
  margin-left: auto;
  font-size: 0.72rem; letter-spacing: 0.04em; text-transform: uppercase;
  color: var(--ember-gold);
}
.plate__foot {
  display: flex; align-items: baseline; gap: 0.7rem;
  padding-top: 16px; border-top: 1px solid var(--iron);
}
.plate__metric {
  font-family: var(--font-display); font-weight: 500;
  font-size: 2rem; letter-spacing: -0.02em; color: var(--paper);
  font-variant-numeric: tabular-nums;
}
.plate__metriclbl { font-size: 0.8rem; color: var(--ash); }

/* stat band */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: clamp(1rem, 0.5rem + 2vw, 2.5rem);
  margin-top: clamp(3rem, 2rem + 4vw, 5rem);
  padding-top: clamp(2rem, 1rem + 3vw, 3rem);
  border-top: 1px solid var(--iron);
}
.stat { display: flex; flex-direction: column; gap: 0.5rem; }
.stat__num {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(1.9rem, 1.2rem + 2.4vw, 2.9rem);
  line-height: 1; letter-spacing: -0.02em; color: var(--paper);
  font-variant-numeric: tabular-nums;
}
.stat__label { font-size: 0.82rem; color: var(--ash); line-height: 1.4; }
@media (max-width: 640px) { .stats { grid-template-columns: 1fr 1fr; gap: 1.8rem 1rem; } }

/* ============================================================
   SECTIONS
   ============================================================ */
.section { padding: var(--section-gap) 0; }
.section + .section { padding-top: 0; }
.section__head { margin-bottom: clamp(2.5rem, 1.5rem + 3vw, 4rem); }
.section__lede {
  font-size: clamp(1rem, 0.95rem + 0.3vw, 1.12rem);
  line-height: 1.6; color: var(--pearl);
  max-width: 60ch; margin-top: 1.4rem;
}

/* feature tiles */
.tiles {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--iron);
  border: 1px solid var(--iron);
  border-radius: var(--r-card);
  overflow: hidden;
}
.tile {
  background: var(--slate);
  padding: clamp(1.5rem, 1rem + 1.5vw, 2.25rem);
  display: flex; flex-direction: column; gap: 0.85rem;
  min-height: 240px;
}
.tile__idx {
  font-family: var(--font-display); font-style: italic; font-weight: 500;
  font-size: 1.6rem; color: var(--ember-gold);
}
.tile__title {
  font-family: var(--font-ui); font-weight: 600;
  font-size: 1.2rem; letter-spacing: -0.01em; color: var(--paper);
}
.tile__body { font-size: 0.95rem; line-height: 1.55; color: var(--pearl); }
@media (max-width: 900px) { .tiles { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .tiles { grid-template-columns: 1fr; } .tile { min-height: 0; } }

/* ============================================================
   DEMO REELS
   ============================================================ */
.reels {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: clamp(0.75rem, 0.3rem + 1.2vw, 1.25rem);
}
.reel { margin: 0; }
.reel__frame {
  position: relative; aspect-ratio: 9 / 16;
  border-radius: var(--r-card); overflow: hidden;
  background: var(--graphite);
  border: 1px solid var(--iron);
}
.reel__video { width: 100%; height: 100%; object-fit: cover; }
.reel__play {
  position: absolute; inset: 0; border: 0; background: transparent;
  cursor: pointer; display: grid; place-items: center;
}
.reel__play::after {
  content: "";
  width: 54px; height: 54px; border-radius: 50%;
  background: rgba(0,0,0,0.45);
  border: 1px solid var(--ember-gold);
  backdrop-filter: blur(3px);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='18' height='18' viewBox='0 0 24 24' fill='%23cc9166'%3E%3Cpath d='M8 5v14l11-7z'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: 56% center;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}
.reel__play:hover::after { transform: scale(1.08); }
.reel.is-playing .reel__play::after { opacity: 0; }
@media (max-width: 900px) { .reels { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 560px) {
  .reels {
    grid-auto-flow: column; grid-template-columns: none;
    grid-auto-columns: 64%; overflow-x: auto;
    scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
    padding-bottom: 0.5rem;
  }
  .reel { scroll-snap-align: center; }
}

/* ============================================================
   DISTANCE
   ============================================================ */
.dist {
  display: grid; grid-template-columns: 1.35fr 0.65fr;
  gap: clamp(1.5rem, 1rem + 3vw, 3.5rem);
  align-items: stretch;
}
.dist__chart {
  background: var(--slate);
  border: 1px solid var(--iron);
  border-radius: var(--r-card);
  padding: 24px 22px 16px;
}
.bigchart { width: 100%; height: clamp(220px, 18vw, 320px); }
.bigchart__tag {
  font-family: var(--font-ui); font-size: 13px; font-weight: 500;
  fill: var(--ember-gold);
}
.bigchart__tag--mute { fill: var(--ash); }
.dist__axis {
  display: flex; justify-content: space-between;
  margin-top: 10px; font-size: 0.78rem; color: var(--ash);
}
.dist__cols { display: grid; grid-template-rows: 1fr 1fr; gap: 1rem; }
.dcol {
  border: 1px solid var(--iron); border-radius: var(--r-card);
  padding: 22px 22px;
}
.dcol--cold { background: transparent; }
.dcol--hot { background: var(--slate); }
.dcol__tag {
  font-size: 0.75rem; font-weight: 500; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--ash); margin-bottom: 1.1rem;
}
.dcol__tag--gold { color: var(--ember-gold); }
.dcol__list { display: grid; gap: 0.55rem; }
.dcol__list li {
  display: flex; align-items: baseline; gap: 0.7rem;
  font-size: 0.95rem; color: var(--pearl);
}
.dcol__list .num {
  font-family: var(--font-display); font-weight: 500;
  font-size: 1.25rem; letter-spacing: -0.02em;
  color: var(--silver); min-width: 3.2em;
  font-variant-numeric: tabular-nums;
}
.dcol--cold .dcol__list .num { color: var(--steel); }
.dcol__note { margin-top: 1.1rem; font-size: 0.88rem; color: var(--ash); line-height: 1.45; }
.dist__foot {
  margin-top: 1.8rem; font-size: 0.9rem; line-height: 1.5;
  color: var(--ash); max-width: 66ch;
}
@media (max-width: 880px) {
  .dist { grid-template-columns: 1fr; }
  .dist__cols { grid-template-rows: none; grid-template-columns: 1fr 1fr; }
}
@media (max-width: 540px) { .dist__cols { grid-template-columns: 1fr; } }

/* ============================================================
   PRICING
   ============================================================ */
.plans {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px;
  background: var(--iron); border: 1px solid var(--iron);
  border-radius: var(--r-card); overflow: hidden;
}
.plan {
  background: var(--slate);
  padding: 28px 24px;
  display: flex; flex-direction: column; gap: 0.5rem;
  position: relative;
}
.plan--featured { background: var(--graphite); }
.plan__badge {
  align-self: flex-start;
  font-size: 0.66rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ember-gold); border: 1px solid var(--ember-gold);
  padding: 3px 10px; border-radius: 9999px; margin-bottom: 0.4rem;
}
.plan__vol {
  font-family: var(--font-ui); font-weight: 600;
  font-size: 1.1rem; letter-spacing: -0.01em; color: var(--paper);
}
.plan__price {
  font-family: var(--font-display); font-weight: 500;
  font-size: clamp(2rem, 1.4rem + 1.6vw, 2.6rem);
  letter-spacing: -0.02em; line-height: 1; color: var(--paper);
  margin-top: 0.6rem; display: flex; align-items: baseline; gap: 0.4rem;
  font-variant-numeric: tabular-nums;
}
.plan__price--quote { color: var(--ember-gold); font-size: 1.5rem; }
.plan__unit { font-family: var(--font-ui); font-size: 0.85rem; font-weight: 400; color: var(--ash); }
.plan__rub {
  font-size: 0.78rem; color: var(--ash); min-height: 1em;
  font-variant-numeric: tabular-nums;
}
.plan__total { font-size: 0.85rem; color: var(--ash); margin-top: 0.3rem; }
.plan__cta { margin-top: auto; width: 100%; }
.plan:not(.plan--featured) { padding-top: 52px; }
@media (max-width: 900px) { .plans { grid-template-columns: 1fr 1fr; } .plan:not(.plan--featured){padding-top:28px;} }
@media (max-width: 480px) { .plans { grid-template-columns: 1fr; } }

/* ============================================================
   FINALE + FOOTER
   ============================================================ */
.finale {
  padding: var(--section-gap) 0;
  border-top: 1px solid var(--iron);
}
.finale__inner { text-align: center; display: flex; flex-direction: column; align-items: center; }
.display--finale { font-size: clamp(2.1rem, 1rem + 4.8vw, 4.6rem); max-width: 20ch; }
.finale__lede { margin-inline: auto; text-align: center; max-width: 48ch; }
.finale .btn { margin-top: 2.4rem; }
.finale__handle { margin-top: 1rem; font-size: 0.9rem; color: var(--ember-gold); letter-spacing: -0.01em; }

.footer {
  background: var(--carbon);
  border-top: 1px solid var(--iron);
  padding: 30px 0;
}
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; }
.footer .wordmark { font-size: 1.05rem; }
.footer__tag { font-size: 0.82rem; color: var(--ash); }
.footer__link { font-size: 0.85rem; color: var(--ember-gold); }

/* ============================================================
   REVEAL
   ============================================================ */
.reveal {
  opacity: 0; transform: translateY(20px);
  transition: opacity 0.8s var(--ease), transform 0.8s var(--ease);
  will-change: opacity, transform;
}
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}