/* Design: Fintech "Trust & Authority" — navy ground + gold primary, Swiss/minimal.
   Rules: one accent, no gradients, no violet, tabular numbers, 4.5:1 contrast,
   visible focus, hover only on hover-capable devices, reduced-motion safe. */

/* ---------- primitives: ARASTARS banner palette ---------- */
:root {
  --ink-1000: #04060c;   /* banner corners */
  --ink-950: #070a14;    /* banner ground */
  --ink-900: #0b1020;    /* raised ground */
  --ink-850: #0e1529;    /* cards */
  --ink-800: #131c36;    /* backdrop circle */
  --ink-700: #1d2a4d;    /* borders */
  --blue-700: #0f35a8;   /* star shadow side */
  --blue-600: #1a4fe0;   /* star body */
  --blue-500: #1f66ff;   /* ARASTARS wordmark */
  --blue-400: #4b8bff;   /* star highlight */
  --gray-300: #c3c9d6;   /* subtitle */
  --white: #f4f6fb;      /* headline */
  --green-500: #22c55e;
}

/* ---------- semantic tokens (always dark, like the bot) ---------- */
:root {
  --color-bg: var(--ink-950);
  --color-bg-alt: var(--ink-1000);
  --color-surface: var(--ink-850);
  --color-surface-2: var(--ink-800);
  --color-border: var(--ink-700);
  --color-text: var(--white);
  --color-text-secondary: #9aa4bd;
  --color-primary: var(--blue-500);
  --color-primary-hover: var(--blue-400);
  --color-on-primary: #ffffff;
  --color-link: var(--blue-400);
  --color-success: var(--green-500);
  --color-focus: var(--blue-400);

  --font-display: "Montserrat", "Inter", system-ui, sans-serif;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas, monospace;

  --radius-sm: 6px;
  --radius: 10px;
  --radius-lg: 14px;
  --max: 1160px;
  --gutter: 24px;
  --ease: cubic-bezier(0.2, 0, 0, 1);
  color-scheme: dark;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: no-preference) { html { scroll-behavior: smooth; } }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  background: var(--color-bg);
  color: var(--color-text);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { text-wrap: balance; margin: 0; font-family: var(--font-display); }
p { text-wrap: pretty; }
a { color: var(--color-link); text-underline-offset: 3px; }
:focus-visible { outline: 3px solid var(--color-focus); outline-offset: 3px; border-radius: 4px; }
.num { font-variant-numeric: tabular-nums; }
.wrap { max-width: var(--max); margin-inline: auto; padding-inline: var(--gutter); }
.skip { position: absolute; left: -9999px; }
.skip:focus { left: 16px; top: 12px; z-index: 50; background: var(--color-primary); color: var(--color-on-primary); padding: 10px 16px; border-radius: var(--radius-sm); }
.icon { width: 22px; height: 22px; flex: none; stroke: currentColor; fill: none; stroke-width: 1.75; stroke-linecap: round; stroke-linejoin: round; }

/* ---------- header ---------- */
.header {
  position: sticky; top: 0; z-index: 20;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}
.header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; height: 68px; }
.logo { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; color: var(--color-text); }
.logo__word { display: flex; flex-direction: column; font: 800 1.05rem/0.92 var(--font-display); letter-spacing: 0.01em; text-transform: uppercase; }
.logo__word span:last-child { color: var(--color-primary); }
.logo__mark { width: 30px; height: 30px; color: var(--color-primary); }
.logo__mark svg { width: 100%; height: 100%; fill: none; stroke: currentColor; stroke-width: 2; stroke-linejoin: round; }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a { color: var(--color-text-secondary); text-decoration: none; font-size: 0.9375rem; font-weight: 500; transition: color 150ms var(--ease); }
.header__end { display: flex; align-items: center; gap: 12px; }
.menu-toggle { display: none; align-items: center; justify-content: center; width: 44px; height: 44px; background: transparent; border: 1px solid var(--color-border); color: var(--color-text); border-radius: var(--radius-sm); cursor: pointer; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 0 22px; border-radius: var(--radius);
  font: 600 0.9375rem/1 var(--font-sans); text-decoration: none; cursor: pointer;
  background: var(--color-primary); color: var(--color-on-primary); border: 1px solid transparent;
  transition: background-color 150ms var(--ease), transform 150ms ease-out, border-color 150ms var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(0.96); }
.btn--ghost { background: transparent; color: var(--color-text); border-color: var(--color-border); }
.btn--sm { min-height: 40px; padding: 0 16px; font-size: 0.875rem; }

@media (hover: hover) {
  .nav a:hover { color: var(--color-text); }
  .btn:hover { background: var(--color-primary-hover); }
  .btn--ghost:hover { background: var(--color-surface-2); border-color: var(--color-text-secondary); }
}

/* ---------- hero ---------- */
.hero {
  padding-block: 88px 96px; border-bottom: 1px solid var(--color-border); position: relative; overflow: hidden;
  background:
    radial-gradient(70% 60% at 75% 100%, rgba(26, 79, 224, 0.22), transparent 70%),
    linear-gradient(180deg, var(--ink-1000), var(--ink-950));
}
.hero::before, .hero::after { /* diagonal light bands from the banner */
  content: ""; position: absolute; top: -20%; height: 140%; width: 140px; transform: rotate(32deg);
  background: linear-gradient(180deg, rgba(31,102,255,0.10), rgba(31,102,255,0));
  border-left: 1px solid rgba(75,139,255,0.18); pointer-events: none;
}
.hero::before { right: 18%; }
.hero::after { right: 2%; width: 90px; }
.hero .wrap { position: relative; z-index: 1; }
.hero__visual { position: relative; aspect-ratio: 1 / 1; max-width: 520px; width: 100%; justify-self: end; }
.hero__visual svg { width: 100%; height: 100%; display: block; overflow: visible; }
/* Star cropped straight from the 1448x1086 bot banner: x 836–1448, y 210–950 (clear of the headline text) */
.has-banner .hero__visual { aspect-ratio: 612 / 740; max-width: 470px; }
.hero__photo {
  display: none; position: absolute; inset: 0;
  background: url("photo_2026-11-02_01-36-59.jpg") no-repeat;
  background-size: 236.6% auto;
  background-position: 100% 60.7%;
  -webkit-mask-image: linear-gradient(to right, transparent 0, #000 5%, #000 93%, transparent 100%), linear-gradient(to bottom, transparent 0, #000 6%, #000 90%, transparent 100%);
  -webkit-mask-composite: source-in;
          mask-image: linear-gradient(to right, transparent 0, #000 5%, #000 93%, transparent 100%), linear-gradient(to bottom, transparent 0, #000 6%, #000 90%, transparent 100%);
          mask-composite: intersect;
}
.has-banner .hero__photo { display: block; }
.has-banner .hero__svg { display: none; }
.divider { display: flex; align-items: center; gap: 12px; color: var(--color-primary); margin: 0 0 22px; max-width: 420px; }
.divider::before, .divider::after { content: ""; height: 2px; flex: 1; background: currentColor; opacity: .9; }
.divider svg { width: 16px; height: 16px; fill: currentColor; }
@media (prefers-reduced-motion: no-preference) {
  .float { animation: float 6s ease-in-out infinite; transform-origin: center; }
  @keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-10px); } }
}
.hero__grid { display: grid; grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr); gap: 64px; align-items: center; }
.label {
  display: inline-flex; align-items: center; gap: 8px;
  font: 500 0.75rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: 0.08em;
  color: var(--color-text-secondary); margin-bottom: 20px;
}
.label::before { content: ""; width: 8px; height: 8px; border-radius: 50%; background: var(--color-success); }
h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); line-height: 1.04; letter-spacing: -0.01em; font-weight: 800; text-transform: uppercase; margin-bottom: 22px; }
h1 em { font-style: normal; color: var(--color-primary); }
.lead { font-size: 1.125rem; color: var(--color-text-secondary); margin: 0 0 32px; max-width: 34em; }
.hero__cta { display: flex; gap: 12px; flex-wrap: wrap; }
.facts { display: grid; grid-template-columns: repeat(3, auto); justify-content: start; gap: 40px; margin: 44px 0 0; padding-top: 28px; border-top: 1px solid var(--color-border); }
.facts dt { font: 600 1.375rem/1.2 var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.01em; }
.facts dd { margin: 4px 0 0; color: var(--color-text-secondary); font-size: 0.875rem; }

/* product mock: the bot dialog */
.mock { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; }
.mock__bar { display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-bottom: 1px solid var(--color-border); }
.mock__ava { width: 36px; height: 36px; border-radius: 50%; background: var(--color-primary); color: var(--color-on-primary); display: grid; place-items: center; }
.mock__ava svg { width: 18px; height: 18px; fill: currentColor; }
.mock__name { font-weight: 600; font-size: 0.9375rem; line-height: 1.2; }
.mock__status { color: var(--color-text-secondary); font-size: 0.8125rem; }
.chat { display: flex; flex-direction: column; gap: 10px; padding: 20px 18px 22px; }
.msg { padding: 10px 14px; border-radius: 12px; max-width: 86%; font-size: 0.875rem; line-height: 1.45; }
.msg--bot { background: var(--color-surface-2); align-self: flex-start; border-bottom-left-radius: 4px; }
.msg--me { background: var(--color-primary); color: var(--color-on-primary); align-self: flex-end; font-weight: 600; border-bottom-right-radius: 4px; }
.msg--ok { display: flex; gap: 8px; align-items: flex-start; }
.msg--ok .icon { width: 18px; height: 18px; color: var(--color-success); margin-top: 1px; }
.chips { display: flex; gap: 8px; flex-wrap: wrap; }
.chip { font: 600 0.8125rem/1 var(--font-mono); padding: 8px 12px; border-radius: 8px; border: 1px solid var(--color-border); color: var(--color-text); }
.chip--on { border-color: var(--color-primary); color: var(--color-primary); }

/* ---------- sections ---------- */
.section { padding-block: 96px; border-bottom: 1px solid var(--color-border); }
.section--alt { background: var(--color-bg-alt); }
.section__head { display: flex; justify-content: space-between; align-items: end; gap: 24px; margin-bottom: 40px; flex-wrap: wrap; }
.section__title { font-size: clamp(1.75rem, 3.2vw, 2.375rem); line-height: 1.12; letter-spacing: -0.01em; font-weight: 800; }
.section__title em { font-style: normal; color: var(--color-primary); }
.section__sub { color: var(--color-text-secondary); margin: 10px 0 0; max-width: 38em; }

/* ---------- packages ---------- */
.packages { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.pack {
  position: relative; display: flex; flex-direction: column; padding: 22px;
  background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-lg);
  color: var(--color-text); text-decoration: none;
  transition: border-color 150ms var(--ease), transform 200ms var(--ease);
}
.pack--hit { border-color: var(--color-primary); }
.pack__tag { position: absolute; top: -10px; left: 20px; background: var(--color-primary); color: var(--color-on-primary); font: 600 0.6875rem/1 var(--font-mono); text-transform: uppercase; letter-spacing: 0.06em; padding: 5px 8px; border-radius: 4px; }
.pack__qty { display: flex; align-items: center; gap: 8px; font: 700 1.625rem/1.1 var(--font-mono); font-variant-numeric: tabular-nums; letter-spacing: -0.02em; }
.pack__qty svg { width: 20px; height: 20px; fill: var(--color-primary); flex: none; }
.pack__label { color: var(--color-text-secondary); font-size: 0.8125rem; margin-top: 4px; }
.pack__price { font: 600 1.25rem/1.2 var(--font-sans); font-variant-numeric: tabular-nums; margin-top: 22px; }
.pack__per { color: var(--color-text-secondary); font-size: 0.8125rem; font-variant-numeric: tabular-nums; }
.pack__btn { margin-top: 18px; min-height: 40px; display: grid; place-items: center; border-radius: var(--radius-sm); border: 1px solid var(--color-border); font-weight: 600; font-size: 0.875rem; transition: background-color 150ms var(--ease), color 150ms var(--ease), border-color 150ms var(--ease); }
.pack--hit .pack__btn { background: var(--color-primary); color: var(--color-on-primary); border-color: var(--color-primary); }
@media (hover: hover) {
  .pack:hover { border-color: var(--color-primary); transform: translateY(-2px); }
  .pack:hover .pack__btn { background: var(--color-primary); color: var(--color-on-primary); border-color: var(--color-primary); }
}
.note { color: var(--color-text-secondary); font-size: 0.875rem; margin: 20px 0 0; }

/* ---------- steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 0; list-style: none; padding: 0; margin: 0; border: 1px solid var(--color-border); border-radius: var(--radius-lg); overflow: hidden; counter-reset: s; }
.step { padding: 28px 24px; border-inline-start: 1px solid var(--color-border); background: var(--color-surface); }
.step:first-child { border-inline-start: 0; }
.step::before { counter-increment: s; content: "0" counter(s); display: block; font: 600 0.8125rem/1 var(--font-mono); color: var(--color-primary); letter-spacing: 0.06em; margin-bottom: 28px; }
.step h3 { font-size: 1.0625rem; line-height: 1.3; margin-bottom: 8px; }
.step p { margin: 0; color: var(--color-text-secondary); font-size: 0.9375rem; }

/* ---------- features ---------- */
.features { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 40px 32px; }
.feature .icon { color: var(--color-primary); margin-bottom: 16px; width: 26px; height: 26px; }
.feature h3 { font-size: 1.0625rem; line-height: 1.3; margin-bottom: 6px; }
.feature p { margin: 0; color: var(--color-text-secondary); font-size: 0.9375rem; }

/* ---------- faq ---------- */
.faq-grid { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 2fr); gap: 48px; }
.faq details { border-bottom: 1px solid var(--color-border); }
.faq details:first-child { border-top: 1px solid var(--color-border); }
.faq summary { padding: 20px 0; cursor: pointer; font-weight: 600; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 16px; min-height: 44px; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon { width: 20px; height: 20px; color: var(--color-text-secondary); transition: transform 200ms var(--ease); }
.faq details[open] summary .icon { transform: rotate(45deg); }
.faq details p { margin: 0; padding: 0 0 22px; color: var(--color-text-secondary); max-width: 62ch; }

/* ---------- contacts ---------- */
.contacts { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.contact { display: flex; gap: 14px; align-items: flex-start; padding: 22px; border-radius: var(--radius-lg); border: 1px solid var(--color-border); background: var(--color-surface); color: var(--color-text); text-decoration: none; transition: border-color 150ms var(--ease); }
.contact .icon { color: var(--color-primary); margin-top: 2px; }
.contact small { color: var(--color-text-secondary); display: block; font-size: 0.8125rem; margin-bottom: 2px; }
.contact b { font-size: 1rem; font-weight: 600; word-break: break-word; }
@media (hover: hover) { .contact:hover { border-color: var(--color-primary); } }
.req { margin-top: 12px; padding: 20px 22px; border-radius: var(--radius-lg); border: 1px solid var(--color-border); font-size: 0.9375rem; display: flex; flex-wrap: wrap; gap: 8px 32px; color: var(--color-text-secondary); }
.req b { color: var(--color-text); font-weight: 600; }
.req p { margin: 0; }

/* ---------- footer ---------- */
.footer { padding-block: 48px 32px; color: var(--color-text-secondary); font-size: 0.875rem; }
.footer__grid { display: grid; grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr) minmax(0, 1fr); gap: 32px; }
.footer p { margin: 12px 0 0; max-width: 32em; }
.footer h4 { color: var(--color-text); margin: 0 0 12px; font-size: 0.875rem; font-weight: 600; }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer a { color: var(--color-text-secondary); text-decoration: none; }
@media (hover: hover) { .footer a:hover { color: var(--color-text); } }
.footer__copy { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--color-border); font-variant-numeric: tabular-nums; }

/* ---------- legal docs ---------- */
.doc { padding-block: 56px 88px; }
.doc .wrap { max-width: 800px; }
.doc h1 { font-size: clamp(2rem, 4vw, 2.5rem); margin-bottom: 8px; }
.doc h2 { font-size: 1.25rem; line-height: 1.3; letter-spacing: -0.01em; margin: 40px 0 12px; }
.doc p, .doc li { max-width: 70ch; }
.doc .meta { color: var(--color-text-secondary); margin: 0 0 32px; font-family: var(--font-mono); font-size: 0.8125rem; }
.doc ul { padding-inline-start: 22px; }
.doc li { margin-bottom: 6px; }
.doc .req { display: block; color: var(--color-text); }
.doc .req p { margin: 4px 0; }
.doc-foot { padding-block: 28px; border-top: 1px solid var(--color-border); color: var(--color-text-secondary); font-size: 0.875rem; }
.doc-foot a { color: var(--color-text-secondary); }

/* ---------- responsive (content-driven) ---------- */
@media (max-width: 1000px) {
  .packages { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .steps { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .step:nth-child(3) { border-inline-start: 0; }
  .step:nth-child(n+3) { border-top: 1px solid var(--color-border); }
  .hero__grid { grid-template-columns: minmax(0, 1fr); gap: 48px; }
  .hero__visual { justify-self: center; max-width: 340px; }
  .faq-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
}
@media (max-width: 760px) {
  :root { --gutter: 16px; }
  .nav { display: none; position: absolute; top: 68px; inset-inline: 0; background: var(--color-bg); border-bottom: 1px solid var(--color-border); flex-direction: column; align-items: stretch; padding: 8px 16px 16px; gap: 0; }
  .nav a { padding: 12px 0; font-size: 1rem; }
  .nav-open .nav { display: flex; }
  .menu-toggle { display: inline-flex; }
  .header .btn--sm { display: none; }
  .hero { padding-block: 56px 64px; }
  .section { padding-block: 64px; }
  .features, .contacts { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .contacts { gap: 12px; }
  .footer__grid { grid-template-columns: minmax(0, 1fr); }
  .facts { gap: 24px; grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .facts dt { font-size: 1.125rem; }
  .hero__cta .btn { flex: 1 1 100%; }
}
@media (max-width: 480px) {
  .packages, .steps { grid-template-columns: minmax(0, 1fr); }
  .step { border-inline-start: 0; }
  .step + .step { border-top: 1px solid var(--color-border); }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; }
  .btn:active, .pack:hover { transform: none; }
}