/* ==========================================================================
   МастерскAIя — Variant C "Bento / витрина" (dark graphite, mono labels, grid)
   Pure CSS, no external resources. Works offline.
   ========================================================================== */

:root {
  --bg:        #0E1017;
  --panel:     #161A24;
  --panel-2:   #1B2030;
  --border:    rgba(255, 255, 255, 0.08);
  --border-2:  rgba(255, 255, 255, 0.14);
  --ink:       #E9EBF2;
  --ink-soft:  #9AA1B4;
  --ink-mute:  #626A7E;

  --blue:      #4F7DFF;
  --violet:    #8B5CF6;
  --cyan:      #22D3EE;
  --warm:      #FF7A45;

  --grad: linear-gradient(120deg, var(--cyan) 0%, var(--blue) 40%, var(--violet) 70%, var(--warm) 100%);

  --radius:    16px;
  --radius-lg: 22px;
  --maxw:      1160px;
  --ease:      cubic-bezier(.22, .61, .36, 1);

  --font-display: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-body:    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono:    ui-monospace, "SF Mono", "JetBrains Mono", "Roboto Mono", Menlo, Consolas, monospace;
}

/* ---------- reset / base ---------- */
* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; overflow-x: hidden; width: 100%; }
body {
  margin: 0; font-family: var(--font-body);
  background: var(--bg); color: var(--ink); line-height: 1.6; font-size: 17px;
  overflow-x: hidden; width: 100%; -webkit-font-smoothing: antialiased;
  background-image:
    radial-gradient(60% 40% at 80% 0%, rgba(79,125,255,.10), transparent 70%),
    radial-gradient(50% 40% at 0% 20%, rgba(139,92,246,.08), transparent 70%);
  background-attachment: fixed;
}
h1, h2, h3 { font-family: var(--font-display); line-height: 1.08; margin: 0; font-weight: 800; letter-spacing: -0.025em; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
img, svg { max-width: 100%; display: block; }
ul { margin: 0; padding: 0; list-style: none; }

.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 22px; }

.gradient-text {
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.tag {
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .04em; color: var(--ink-mute);
  text-transform: none; display: inline-block;
}
.tag.grad { color: var(--blue); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(14, 16, 23, 0.72); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 20px; height: 70px; }
.brand { flex: 0 0 auto; display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 20px; letter-spacing: -0.02em; }
.brand img { width: 32px; height: 32px; }
.nav-links { flex: 1 1 auto; display: flex; gap: 28px; align-items: center; justify-content: center; }
.nav-links a { color: var(--ink-soft); font-size: 14.5px; font-family: var(--font-mono); transition: color .2s; }
.nav-links a:hover { color: var(--ink); }
.nav-cta {
  flex: 0 0 auto;
  font-family: var(--font-body); padding: 10px 20px; border-radius: 10px; color: #fff; font-weight: 700; font-size: 14.5px;
  background: var(--grad); text-shadow: 0 1px 2px rgba(0,0,0,.25);
  transition: transform .2s var(--ease), box-shadow .2s; box-shadow: 0 8px 24px -10px rgba(79,125,255,.7);
}
.nav-cta:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 12px 28px -8px rgba(139,92,246,.7); }
.nav-cta--mobile { display: none; }
.nav-toggle { display: none; }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px; cursor: pointer; border: 0;
  font-family: var(--font-body); font-size: 15.5px; font-weight: 700;
  padding: 14px 26px; border-radius: 11px; transition: transform .2s var(--ease), box-shadow .25s, border-color .2s;
}
.btn-primary { background: var(--grad); color: #0b0d13; box-shadow: 0 12px 30px -12px rgba(79,125,255,.8); }
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 18px 40px -14px rgba(139,92,246,.8); }
.btn-ghost { background: var(--panel-2); color: var(--ink); border: 1px solid var(--border-2); }
.btn-ghost:hover { border-color: var(--blue); transform: translateY(-2px); }
.btn-icon { width: 18px; height: 18px; flex-shrink: 0; }

/* temporary disabled state for buttons awaiting a feature (e.g. payment) —
   the normal .btn-primary/.btn-ghost rules above stay untouched, so
   re-enabling later is just removing the disabled attribute + badge */
.btn:disabled, .btn[disabled] {
  opacity: .42; cursor: not-allowed; pointer-events: none; filter: grayscale(.35);
}
.soon-badge-wrap { position: relative; width: 100%; }
.soon-badge {
  position: absolute; top: -11px; right: -8px; z-index: 2; pointer-events: none;
  font-family: var(--font-mono); font-size: 10.5px; font-weight: 700; letter-spacing: .06em;
  text-transform: uppercase; padding: 4px 10px; border-radius: 999px;
  background: var(--grad); color: #0b0d13; box-shadow: 0 8px 18px -8px rgba(79,125,255,.8);
}

/* ---------- generic panel / bento ---------- */
.cell {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius-lg);
  padding: 30px; position: relative; overflow: hidden;
}

/* ---------- hero ---------- */
.hero { padding: 54px 0 40px; }
.hero-panel {
  display: flex; align-items: center; gap: 36px; padding: 50px; overflow: visible;
}
.hero-panel::before {
  content: ""; position: absolute; right: -20%; top: -40%; width: 60%; height: 140%;
  background: radial-gradient(circle, rgba(79,125,255,.16), transparent 60%); pointer-events: none;
}
.hero-copy { flex: 1 1 400px; min-width: 0; position: relative; z-index: 1; }
.hero-copy h1 { font-size: clamp(38px, 5.2vw, 62px); margin-top: 18px; max-width: 15ch; }
.hero-copy .lede { margin-top: 22px; color: var(--ink-soft); font-size: clamp(16px, 2vw, 19px); max-width: 46ch; }
.hero-actions { margin-top: 32px; display: flex; gap: 13px; flex-wrap: wrap; }
.hero-note { margin-top: 18px; }

.hero-media {
  flex: 1.3 1 460px; display: flex; justify-content: center; position: relative; z-index: 1;
  margin-right: -130px; min-width: 0;
}
.hero-media img {
  width: 100%; max-width: 860px; height: auto;
  filter: drop-shadow(0 30px 50px rgba(0,0,0,.5));
}

/* ---------- section frame ---------- */
.section { padding: 56px 0; }
.section-head { max-width: 60ch; margin-bottom: 30px; }
.section-head h2 { font-size: clamp(28px, 4vw, 42px); margin-top: 12px; }
.section-head p { color: var(--ink-soft); margin-top: 14px; font-size: 17px; }

/* ---------- steps (bento) ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }
.step {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px;
  position: relative; overflow: hidden; transition: transform .25s var(--ease), border-color .25s;
}
.step:hover { transform: translateY(-4px); border-color: var(--border-2); }
.step-num {
  position: absolute; top: -14px; right: 4px; z-index: 0; pointer-events: none; user-select: none;
  font-family: var(--font-display); font-weight: 800; font-size: clamp(72px, 9vw, 104px);
  line-height: 1; letter-spacing: -0.04em; color: var(--ink); opacity: .06;
}
.step-body { position: relative; z-index: 1; }
.step .n { font-family: var(--font-mono); font-size: 13px; color: var(--blue); }
.step h3 { font-size: 18px; margin-top: 16px; font-weight: 700; letter-spacing: -0.01em; }
.step p { color: var(--ink-soft); font-size: 14.5px; margin-top: 8px; }

/* ---------- features (bento grid) ---------- */
.features { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
.feature { background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius); padding: 26px; transition: transform .25s var(--ease), border-color .25s; display: flex; gap: 16px; }
.feature:hover { transform: translateY(-4px); border-color: var(--border-2); }
.feature .ic { flex: 0 0 46px; width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center; background: var(--panel-2); border: 1px solid var(--border); color: var(--blue); }
.feature .ic svg { width: 23px; height: 23px; stroke: currentColor; }
.feature h3 { font-size: 17px; font-weight: 700; }
.feature p { color: var(--ink-soft); font-size: 14.5px; margin-top: 6px; }

/* ---------- examples slider (center-focused peek carousel, infinite loop) ---------- */
.slider { position: relative; }
.slider-viewport {
  position: relative; overflow: hidden; height: 0; padding-bottom: 33.75%; /* 60% slide width * 9/16 */
  -webkit-mask-image: linear-gradient(to right, transparent 0%, #000 13%, #000 87%, transparent 100%);
  mask-image: linear-gradient(to right, transparent 0%, #000 13%, #000 87%, transparent 100%);
}
.slider-track { position: absolute; inset: 0; touch-action: pan-y; user-select: none; -webkit-user-select: none; }
.slider-slide {
  position: absolute; top: 0; left: 50%; width: 60%; margin-left: -30%;
  aspect-ratio: 16 / 9; border-radius: var(--radius-lg); overflow: hidden;
  background: var(--panel-2); box-shadow: 0 24px 60px -20px rgba(0,0,0,.6);
  transition: transform .6s var(--ease), opacity .6s var(--ease);
  will-change: transform, opacity;
}
.slider-slide img { width: 100%; height: 100%; object-fit: cover; display: block; pointer-events: none; }

.slider-arrow {
  position: absolute; top: 50%; transform: translateY(-50%); z-index: 20;
  width: 50px; height: 50px; border-radius: 50%; display: grid; place-items: center;
  background: rgba(14,16,23,.78); border: 1px solid var(--border-2); color: var(--ink);
  cursor: pointer; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: background .2s, transform .2s var(--ease), border-color .2s;
}
.slider-arrow:hover { background: var(--panel-2); border-color: var(--blue); transform: translateY(-50%) scale(1.08); }
.slider-arrow:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.slider-arrow svg { width: 22px; height: 22px; }
.slider-arrow--prev { left: -22px; }
.slider-arrow--next { right: -22px; }

.slider-dots { display: flex; justify-content: center; gap: 9px; margin-top: 22px; }
.slider-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--border-2); border: 0; padding: 0; cursor: pointer; transition: background .2s, transform .2s var(--ease); }
.slider-dot:hover { background: var(--ink-mute); }
.slider-dot.is-active { background: var(--grad); transform: scale(1.3); }

/* ---------- tariffs ---------- */
.tariffs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; align-items: stretch; }
.tariff { position: relative; padding: 32px 28px; border-radius: var(--radius-lg); background: var(--panel); border: 1px solid var(--border); display: flex; flex-direction: column; transition: transform .3s var(--ease), border-color .3s; }
.tariff:hover { transform: translateY(-6px); border-color: var(--border-2); }
.tariff.featured { background: var(--panel-2); border-color: transparent; box-shadow: 0 0 0 1px var(--blue), 0 24px 60px -28px rgba(79,125,255,.7); }
.tariff .badge { position: absolute; top: 26px; right: 26px; font-family: var(--font-mono); font-size: 11.5px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; padding: 5px 11px; border-radius: 7px; background: var(--grad); color: #0b0d13; }
.tariff .t-name { font-family: var(--font-mono); color: var(--ink-soft); font-size: 13px; letter-spacing: .04em; }
.tariff .t-price { font-family: var(--font-display); font-size: 50px; font-weight: 800; margin-top: 12px; letter-spacing: -0.04em; }
.tariff .t-price span { font-size: 19px; color: var(--ink-soft); font-weight: 600; }
.tariff .t-sub { color: var(--ink-soft); font-size: 14.5px; margin-top: 4px; }
.tariff ul { margin: 22px 0 26px; display: flex; flex-direction: column; gap: 11px; }
.tariff li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: var(--ink); }
.tariff li svg { flex: 0 0 19px; width: 19px; height: 19px; margin-top: 2px; color: var(--blue); }
.tariff .btn { justify-content: center; width: 100%; }
.tariff .soon-badge-wrap { margin-top: auto; }
.tariffs-note { margin-top: 22px; text-align: center; color: var(--ink-mute); font-size: 13.5px; font-family: var(--font-mono); }

/* ---------- try it live CTA ---------- */
.cta-panel { text-align: center; padding: 56px 40px; }
.cta-panel::before {
  content: ""; position: absolute; left: 50%; top: 50%; width: 60%; height: 220%;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, rgba(79,125,255,.16), transparent 65%);
  pointer-events: none;
}
.cta-panel-inner { position: relative; z-index: 1; display: flex; flex-direction: column; align-items: center; }
.cta-panel h2 { font-size: clamp(28px, 4vw, 40px); max-width: 18ch; margin-top: 12px; }
.cta-panel p { color: var(--ink-soft); margin-top: 14px; max-width: 50ch; font-size: 17px; }
.cta-panel .btn { margin-top: 30px; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-more { margin-top: 26px; text-align: left; color: var(--ink-soft); font-size: 15.5px; }
.faq-more a { color: var(--blue); transition: color .2s; }
.faq-more a:hover { color: var(--ink); }
.faq-item {
  background: var(--panel); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 0 24px; transition: border-color .2s;
}
.faq-item[open] { border-color: var(--border-2); }
.faq-item summary {
  list-style: none; cursor: pointer; padding: 20px 0;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  font-weight: 700; font-size: 16.5px; color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::marker { content: ""; }
.faq-item summary .plus {
  flex: 0 0 auto; font-family: var(--font-display); font-size: 22px; font-weight: 400;
  color: var(--blue); transition: transform .25s var(--ease);
}
.faq-item[open] summary .plus { transform: rotate(45deg); }
.faq-item p { color: var(--ink-soft); font-size: 15px; padding: 0 0 20px; margin: 0; max-width: 100ch; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border); padding: 40px 0 32px; margin-top: 30px; }
.footer-top { display: flex; justify-content: space-between; align-items: center; gap: 24px; flex-wrap: wrap; }
.footer-links { display: flex; gap: 24px; flex-wrap: wrap; align-items: center; }
.footer-links a { color: var(--ink-soft); font-size: 14.5px; font-family: var(--font-mono); transition: color .2s; }
.footer-links a:hover { color: var(--ink); }
.footer-contact { color: var(--ink-mute); font-size: 14.5px; font-family: var(--font-mono); display: inline-flex; align-items: center; gap: 10px; }
.footer-contact a { color: var(--ink-soft); transition: color .2s; }
.footer-contact a:hover { color: var(--ink); }
.footer-tg {
  display: inline-flex; align-items: center; justify-content: center;
  width: 26px; height: 26px; border-radius: 50%;
  background: var(--panel-2); border: 1px solid var(--border-2); color: var(--ink-soft);
  transition: color .2s, background .2s, border-color .2s;
}
.footer-tg:hover { color: #fff; background: var(--grad); border-color: transparent; }
.footer-tg svg { width: 14px; height: 14px; }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 14px; flex-wrap: wrap;
  margin-top: 26px; padding-top: 22px; border-top: 1px solid var(--border);
}
.footer-copy { color: var(--ink-mute); font-size: 13.5px; font-family: var(--font-mono); }

/* ---------- legal pages ---------- */
.legal { padding: 50px 0 84px; }
.legal-wrap { max-width: 820px; margin: 0 auto; }
.back-link { display: inline-flex; align-items: center; gap: 8px; color: var(--ink-soft); font-size: 14.5px; font-family: var(--font-mono); margin-bottom: 26px; transition: color .2s; }
.back-link:hover { color: var(--ink); }
.legal h1 { font-size: clamp(30px, 5vw, 44px); }
.legal .updated { color: var(--ink-mute); font-size: 14px; margin-top: 12px; font-family: var(--font-mono); }
.legal-body { margin-top: 38px; }
.legal-body h2 { font-size: 21px; margin-top: 40px; font-weight: 700; letter-spacing: -0.01em; }
.legal-body h2 .num { font-family: var(--font-mono); color: var(--blue); margin-right: 10px; font-size: 18px; }
.legal-body h3 { font-size: 17px; margin-top: 26px; font-weight: 700; }
.legal-body p { color: var(--ink-soft); margin-top: 14px; }
.legal-body ul { margin-top: 14px; display: flex; flex-direction: column; gap: 10px; }
.legal-body li { color: var(--ink-soft); padding-left: 22px; position: relative; }
.legal-body li::before { content: "—"; position: absolute; left: 0; top: 0; color: var(--blue); font-family: var(--font-mono); }
.legal-body strong { color: var(--ink); }
.legal-card { margin-top: 20px; padding: 22px 24px; border-radius: var(--radius); background: var(--panel); border: 1px solid var(--border); }
.legal-card p { margin-top: 6px; color: var(--ink); }
.legal-card p:first-child { margin-top: 0; }

/* ---------- scroll reveal ---------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity .65s var(--ease), transform .65s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero-panel { padding: 40px; gap: 28px; }
  .hero-media { margin-right: -60px; }
  .hero-media img { max-width: 480px; }
  .features { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  /* background-attachment:fixed + radial gradients is a known source of
     rendering seams on mobile browsers (GPU compositing artifacts); the
     ambient glow barely reads at phone width anyway, so just drop it there */
  body { font-size: 16px; background-image: none; background-attachment: scroll; }
  .hero-panel::before { display: none; }
  .nav-links {
    position: fixed; inset: 70px 0 auto 0; flex-direction: column; align-items: stretch; gap: 0;
    background: rgba(14,16,23,.98); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border);
    padding: 8px 0; transform: translateY(-100vh); transition: transform .32s var(--ease);
  }
  .nav-links.open { transform: none; }
  .nav-links a { padding: 14px 22px; width: 100%; }
  .nav-cta--desktop { display: none; }
  .nav-cta--mobile { display: flex; justify-content: center; margin: 10px 22px; width: auto; text-align: center; color: #fff; }
  .nav-toggle { display: inline-flex; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
  .nav-toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .25s, opacity .25s; }
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
  .hero-panel { flex-direction: column; align-items: stretch; padding: 30px; text-align: left; overflow: hidden; }
  .hero-media { flex: 0 0 auto; align-items: center; margin-right: 0; }
  .hero-media img { max-width: 340px; }
  .features, .tariffs, .steps { grid-template-columns: 1fr; }
  .section { padding: 46px 0; }
  .footer-bottom { flex-direction: column; align-items: flex-start; }
  .slider-arrow { width: 40px; height: 40px; }
  .slider-arrow svg { width: 18px; height: 18px; }
  .slider-arrow--prev { left: 10px; }
  .slider-arrow--next { right: 10px; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .slider-slide { transition: none !important; }
}