/* ═══════════════════════════════════════════════════════════
   AI Site Construction — тёмная премиум дизайн-система
   ═══════════════════════════════════════════════════════════ */

:root {
  --bg: #0b0d12;
  --bg-elev: #11141b;
  --surface: #161a23;
  --surface-2: #1c2130;
  --border: rgba(148, 163, 184, .14);
  --border-strong: rgba(148, 163, 184, .28);
  --text: #e6e9f0;
  --text-muted: #8b93a7;
  --brand-primary: #6366f1;
  --brand-primary-dark: #4f46e5;
  --brand-accent: #22d3ee;
  --brand-success: #34d399;
  --brand-warning: #fbbf24;
  --brand-danger: #f87171;
  --brand-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #22d3ee 100%);
  --glow: 0 0 24px rgba(99, 102, 241, .35);
}

* { scrollbar-width: thin; scrollbar-color: var(--surface-2) transparent; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-thumb { background: var(--surface-2); border-radius: 8px; }
::-webkit-scrollbar-thumb:hover { background: #262d40; }

body {
  background:
    radial-gradient(1100px 480px at 85% -8%, rgba(139, 92, 246, .09), transparent),
    radial-gradient(900px 420px at 5% 108%, rgba(34, 211, 238, .07), transparent),
    var(--bg);
  color: var(--text);
}

h1, h2, h3, h4, h5, h6, .card-title { color: var(--text); }
a { color: var(--brand-accent); }
.text-muted { color: var(--text-muted) !important; }

/* ── Навигация ── */
.navbar {
  background: rgba(11, 13, 18, .82) !important;
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  position: relative;
  z-index: 2000;
}
.navbar-brand { letter-spacing: .02em; }
.navbar .nav-link { color: var(--text-muted); transition: color .2s; }
.navbar .nav-link:hover { color: var(--text); }
.navbar .dropdown-menu {
  z-index: 2100 !important;
  position: absolute;
  background: var(--surface) !important;
  border: 1px solid var(--border-strong);
  box-shadow: 0 18px 42px rgba(0, 0, 0, .55);
}
.navbar .dropdown-item { color: var(--text) !important; }
.navbar .dropdown-item:hover,
.navbar .dropdown-item:focus { background: var(--surface-2) !important; color: #fff !important; }
.navbar .dropdown-divider { border-color: var(--border); }
.navbar .dropdown-header { color: var(--text-muted) !important; }

/* ── Карточки ── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--text);
  transition: transform .2s ease, box-shadow .25s ease, border-color .25s ease;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); box-shadow: 0 16px 36px rgba(0, 0, 0, .45) !important; }
.card-body, .card-body p, .card-body li, .form-text { color: var(--text-muted); }
.card-body strong, .card-body label { color: var(--text); }
.bg-light { background-color: var(--bg-elev) !important; color: var(--text) !important; }
.card-header { background: var(--bg-elev) !important; border-bottom: 1px solid var(--border); color: var(--text); }
.card-footer { background: var(--bg-elev) !important; border-top: 1px solid var(--border); }

/* ── Кнопки ── */
.btn-primary {
  --bs-btn-bg: var(--brand-primary);
  --bs-btn-border-color: var(--brand-primary);
  --bs-btn-hover-bg: var(--brand-primary-dark);
  --bs-btn-hover-border-color: var(--brand-primary-dark);
  --bs-btn-active-bg: var(--brand-primary-dark);
  box-shadow: 0 4px 18px rgba(99, 102, 241, .3);
}
.btn-outline-secondary {
  --bs-btn-color: var(--text-muted);
  --bs-btn-border-color: var(--border-strong);
  --bs-btn-hover-bg: var(--surface-2);
  --bs-btn-hover-border-color: var(--border-strong);
  --bs-btn-hover-color: var(--text);
}
.btn-outline-primary {
  --bs-btn-color: var(--brand-accent);
  --bs-btn-border-color: rgba(34, 211, 238, .4);
  --bs-btn-hover-bg: rgba(34, 211, 238, .08);
  --bs-btn-hover-border-color: var(--brand-accent);
  --bs-btn-hover-color: var(--brand-accent);
}

/* ── Формы ── */
.form-control, .form-select {
  background: var(--bg-elev);
  border: 1px solid var(--border);
  color: var(--text);
}
.select-dark {
    color: #524e4e;
}
.form-control:focus, .form-select:focus {
  background: var(--bg-elev);
  border-color: var(--brand-primary);
  color: var(--text);
  box-shadow: 0 0 0 .2rem rgba(99, 102, 241, .18);
}
.form-control::placeholder { color: #5b6274; }
.form-label { color: var(--text); }
.form-check-input:checked { background-color: var(--brand-primary); border-color: var(--brand-primary); }

/* ── Таблицы ── */
.table { color: var(--text); border-color: var(--border); }
.table-light { --bs-table-bg: var(--bg-elev); }
.table > :not(caption) > * > * { background-color: transparent; color: var(--text); border-color: var(--border); }
.table-hover > tbody > tr:hover > * { background-color: rgba(99, 102, 241, .06); }

/* ── Алерты / бейджи ── */
.alert-info { background: rgba(34, 211, 238, .08); border: 1px solid rgba(34, 211, 238, .25); color: var(--text); }
.alert-warning { background: rgba(251, 191, 36, .08); border: 1px solid rgba(251, 191, 36, .3); color: var(--text); }
.alert-danger { background: rgba(248, 113, 113, .1); border: 1px solid rgba(248, 113, 113, .35); color: #fecaca; }
.badge.bg-secondary { background: var(--surface-2) !important; color: var(--text-muted) !important; }
.badge.bg-info { background: rgba(34, 211, 238, .15) !important; color: var(--brand-accent) !important; }

/* ── Hero ── */
.hero-section {
  position: relative;
  background:
    radial-gradient(ellipse 70% 90% at 50% -20%, rgba(139, 92, 246, .35), transparent),
    linear-gradient(160deg, #141827 0%, #10131c 100%);
  border: 1px solid var(--border);
  border-radius: 1.5rem;
  color: #fff;
  box-shadow: 0 30px 70px rgba(0, 0, 0, .5), inset 0 1px 0 rgba(255, 255, 255, .05);
  overflow: hidden;
}
.hero-section .lead { color: rgba(230, 233, 240, .78); }
.hero-section .btn-light { color: var(--brand-primary-dark); font-weight: 600; border: none; }
.hero-section .btn-outline-light { border-color: rgba(255, 255, 255, .3); }

.text-gradient {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ── Иконки фич ── */
.feature-icon {
  width: 64px; height: 64px;
  display: inline-flex; align-items: center; justify-content: center;
  border-radius: 1rem;
  background: linear-gradient(140deg, rgba(99, 102, 241, .18), rgba(34, 211, 238, .1));
  border: 1px solid rgba(99, 102, 241, .25);
  font-size: 26px;
  transition: transform .25s ease, box-shadow .25s ease;
}
.card:hover .feature-icon { transform: scale(1.08); box-shadow: var(--glow); }

/* ── Демо-карточки ── */
.demo-card { position: relative; overflow: hidden; }
.demo-thumb {
  height: 150px;
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem; color: #fff;
  position: relative;
  background-size: cover;
  background-position: center;
  transition: transform .4s ease;
}
.demo-card:hover .demo-thumb { transform: scale(1.05); }
.demo-thumb::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(11, 13, 18, .55));
}
.demo-thumb-business { background: linear-gradient(135deg, #0ea5e9, #6366f1); }
.demo-thumb-landing   { background: linear-gradient(135deg, #f59e0b, #ef4444); }
.demo-thumb-portfolio { background: linear-gradient(135deg, #10b981, #14b8a6); }

/* ── Drag-and-drop ── */
.drop-zone {
  border: 2px dashed var(--border-strong);
  border-radius: .75rem;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color .2s, background .2s;
  background: var(--bg-elev);
  color: var(--text-muted);
}
.drop-zone:hover, .drop-zone.dragover {
  border-color: var(--brand-accent);
  background: rgba(34, 211, 238, .05);
}

/* ── Оверлей AI-загрузки с прогрессом этапов ── */
.loading-overlay {
  position: fixed;
  inset: 0;
  background: rgba(7, 8, 12, .9);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 1080;
}
.ai-progress { max-width: 480px; width: 92%; }
.ai-orbit {
  width: 84px; height: 84px; margin: 0 auto 1.25rem;
  border-radius: 50%;
  border: 2px solid var(--surface-2);
  border-top-color: var(--brand-primary);
  border-right-color: var(--brand-accent);
  animation: spin 1.1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.ai-steps { list-style: none; padding: 0; margin: 1.5rem 0 0; text-align: left; }
.ai-steps li {
  display: flex; align-items: center; gap: .65rem;
  padding: .45rem 0; color: var(--text-muted); font-size: .95rem;
  transition: color .4s;
}
.ai-steps li .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--surface-2); flex-shrink: 0;
  transition: background .4s, box-shadow .4s;
}
.ai-steps li.active { color: var(--text); }
.ai-steps li.active .dot { background: var(--brand-accent); box-shadow: 0 0 12px var(--brand-accent); animation: pulse 1.4s infinite; }
.ai-steps li.done { color: var(--brand-success); }
.ai-steps li.done .dot { background: var(--brand-success); box-shadow: none; animation: none; }
@keyframes pulse { 0%,100% { transform: scale(1);} 50% { transform: scale(1.35);} }

/* ── Предпросмотр ── */
.preview-wrap {
  border: 1px solid var(--border);
  border-radius: .75rem;
  overflow: hidden;
  background: #fff;
}
.preview-wrap iframe { width: 100%; height: 75vh; border: 0; display: block; }

/* ── Чат-редактор ── */
.chat-card {
  height: 100%;
}
.chat-body {
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  min-height: 0;
  max-height: none;
}
.chat-footer {
  flex-shrink: 0;
}

/* ── Чат ── */
.chat-body { overflow-y: auto; }
.chat-entry { background: var(--bg-elev) !important; border: 1px solid var(--border); }
.chat-entry + .chat-entry { margin-top: .5rem; }

/* ── Прогресс-бары / футер ── */
.progress { background: var(--surface-2); border-radius: 999px; }
.progress-bar { border-radius: 999px; }
footer.bg-light {
  background: var(--bg-elev) !important;
  border-top: 1px solid var(--border) !important;
  color: var(--text-muted) !important;
}

/* ── Анимации появления ── */
.fade-up { animation: fadeUp .5s ease both; }
@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

/* Пульс индикатора AI online */
@keyframes pulse { 0%,100% { opacity: 1; transform: scale(1);} 50% { opacity: .55; transform: scale(1.25);} }

/* Чипы-примеры */
.example-chip { text-decoration: none; }

/* Мобильная адаптация */
@media (max-width: 991.98px) {
  .preview-wrap iframe { height: 55vh; }
  .chat-body { max-height: 40vh; }
}

/* ── Главная: формат конструктора ── */
.home-page { padding-bottom: 2rem; }
.home-hero { display: grid; grid-template-columns: .78fr 1.22fr; gap: 2rem; align-items: center; padding: 4rem 0 5rem; }
.home-hero-copy { padding-left: clamp(0rem, 3vw, 3rem); }
.eyebrow { display: inline-block; color: var(--brand-accent); font-size: .72rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; margin-bottom: .8rem; }
.home-hero h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); line-height: 1.02; letter-spacing: -.03em; margin-bottom: 1.4rem; }
.home-hero-copy > p { max-width: 32rem; color: var(--text-muted); font-size: 1.08rem; line-height: 1.7; margin-bottom: 1.8rem; }
.builder-preview { min-width: 0; border: 1px solid var(--border-strong); border-radius: 1rem; background: rgba(22, 26, 35, .82); box-shadow: 0 22px 60px rgba(0,0,0,.35); overflow: hidden; transform: rotate(1deg); }
.builder-topbar { height: 2.4rem; display: flex; align-items: center; gap: .4rem; padding: 0 .85rem; border-bottom: 1px solid var(--border); color: var(--text-muted); font-size: .68rem; }
.builder-dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-primary); }.builder-dot:nth-child(2) { background: var(--brand-accent); }.builder-dot:nth-child(3) { background: var(--brand-success); }
.builder-title { margin-left: .55rem; }.builder-status { margin-left: auto; color: var(--brand-success); }
.builder-layout { display: grid; grid-template-columns: 7.5rem 1fr; min-height: 16rem; }.builder-sidebar { display: flex; flex-direction: column; gap: 1rem; padding: 1.2rem .9rem; border-right: 1px solid var(--border); color: var(--text-muted); font-size: .68rem; }.builder-sidebar strong { color: var(--brand-accent); }.builder-main { min-width: 0; padding: 1.25rem; }.builder-heading { display: flex; justify-content: space-between; gap: 1rem; align-items: start; margin-bottom: 1rem; }.builder-heading small { display: block; color: var(--text-muted); font-size: .62rem; }.builder-heading strong { display: block; margin-top: .2rem; font-size: .95rem; }.preview-chip { color: var(--brand-accent); border: 1px solid rgba(34,211,238,.3); border-radius: .4rem; padding: .3rem .5rem; font-size: .58rem; white-space: nowrap; }
.builder-panels { display: grid; grid-template-columns: 1.15fr 1fr .8fr; gap: .65rem; }.builder-panel { min-width: 0; padding: .8rem; border: 1px solid var(--border); border-radius: .65rem; background: rgba(17,20,27,.7); }.builder-panel > strong { font-size: .7rem; }.builder-panel p { color: var(--text-muted); font-size: .58rem; line-height: 1.45; min-height: 2.1rem; }.fake-input { padding: .55rem; border: 1px solid var(--border); border-radius: .35rem; color: var(--text-muted); font-size: .56rem; }.swatches { display: flex; gap: .35rem; margin: .7rem 0 1.1rem; }.swatches i { width: 1rem; height: 1rem; border-radius: 50%; background: var(--brand-primary); }.swatches i:nth-child(2) { background: #2563eb; }.swatches i:nth-child(3) { background: #10b981; }.swatches i:nth-child(4) { background: #f59e0b; }.swatches i:nth-child(5) { background: var(--brand-accent); }.fake-slider { height: .3rem; border-radius: 1rem; background: linear-gradient(90deg, var(--brand-primary), var(--brand-accent)); }.fake-slider span { display: block; width: .8rem; height: .8rem; margin-left: 75%; transform: translateY(-.25rem); border-radius: 50%; background: #fff; box-shadow: 0 0 0 .2rem rgba(99,102,241,.35); }.font-choice { margin-top: .4rem; padding: .45rem; border: 1px solid var(--border); border-radius: .35rem; font-size: .6rem; }.font-choice.active { border-color: var(--brand-primary); color: var(--text); }.font-choice b { float: right; color: var(--brand-accent); }
.home-section { padding: 4.5rem 0 1rem; }.section-heading { margin-bottom: 2rem; }.section-heading h2 { font-size: clamp(1.7rem, 3vw, 2.7rem); line-height: 1.1; letter-spacing: -.02em; }.home-feature, .process-step { height: 100%; padding: 1.35rem; border: 1px solid var(--border); border-radius: 1rem; background: rgba(22,26,35,.64); }.home-feature h3, .process-step h3 { font-size: .95rem; margin: 1.2rem 0 .55rem; }.home-feature p, .process-step p { color: var(--text-muted); font-size: .8rem; line-height: 1.6; margin: 0; }.feature-icon-success { background: rgba(52,211,153,.13); border-color: rgba(52,211,153,.3); color: var(--brand-success); }.feature-icon-warning { background: rgba(251,191,36,.13); border-color: rgba(251,191,36,.3); color: var(--brand-warning); }
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }.process-step { position: relative; text-align: center; }.process-step > b { position: absolute; top: 1rem; left: 1rem; color: var(--brand-primary); font-size: .72rem; }.process-icon { display: grid; place-items: center; width: 3rem; height: 3rem; margin: .2rem auto 1rem; border-radius: .75rem; color: var(--brand-accent); background: rgba(99,102,241,.12); font-size: 1.35rem; }.trust-row { display: flex; gap: clamp(1rem, 5vw, 4rem); align-items: center; justify-content: center; flex-wrap: wrap; padding: 4rem 0 2rem; color: var(--text-muted); font-size: .7rem; }.trust-row strong { color: var(--text); font-size: .72rem; letter-spacing: .08em; }.home-cta { position: relative; overflow: hidden; margin: 3rem 0 2rem; padding: 3.5rem 1.5rem; text-align: center; border: 1px solid rgba(99,102,241,.35); border-radius: 1rem; background: radial-gradient(circle at 50% 0, rgba(99,102,241,.22), transparent 65%), var(--surface); }.home-cta h2 { font-size: clamp(1.8rem, 4vw, 3.2rem); margin-bottom: .8rem; }.home-cta p { max-width: 34rem; margin: 0 auto 1.5rem; color: var(--text-muted); }
@media (max-width: 991.98px) { .home-hero { grid-template-columns: 1fr; padding-top: 2rem; }.home-hero-copy { padding-left: 0; }.builder-preview { transform: none; }.process-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 575.98px) { .builder-layout { grid-template-columns: 5.3rem 1fr; }.builder-main { padding: .8rem; }.builder-panels { grid-template-columns: 1fr; }.builder-description { display: none; }.builder-sidebar { padding: 1rem .6rem; }.builder-heading strong { font-size: .75rem; }.process-grid { grid-template-columns: 1fr; }.trust-row { gap: 1rem; padding-top: 3rem; } }