/* ============================================================
   ATV UI Kit v2.1 — Design System (polished)
   Accent: Indigo #4f46e5 (dark #6366f1) · Amber CTAs · Light default
   ============================================================ */

:root {
  --atv-accent: #4f46e5;
  --atv-accent-hover: #4338ca;
  --atv-accent-soft: #eef2ff;
  --atv-accent-ring: rgba(79, 70, 229, .18);
  --atv-amber: #f59e0b;
  --atv-amber-hover: #d97706;

  --atv-bg: #f8fafc;
  --atv-surface: #ffffff;
  --atv-surface-2: #f1f5f9;
  --atv-border: #e2e8f0;
  --atv-border-strong: #cbd5e1;

  --atv-text: #0f172a;
  --atv-text-2: #475569;
  --atv-text-3: #94a3b8;

  --atv-success: #059669;
  --atv-success-soft: #ecfdf5;

  --atv-radius: 14px;
  --atv-radius-sm: 9px;
  --atv-container: 1280px;

  --atv-shadow-xs: 0 1px 2px rgba(15,23,42,.05);
  --atv-shadow: 0 1px 2px rgba(15,23,42,.04), 0 4px 12px rgba(15,23,42,.05);
  --atv-shadow-md: 0 2px 4px rgba(15,23,42,.05), 0 10px 28px rgba(15,23,42,.08);
  --atv-shadow-lift: 0 4px 8px rgba(15,23,42,.06), 0 16px 40px rgba(79,70,229,.13);

  --atv-font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  --atv-mono: ui-monospace, "Cascadia Code", "SF Mono", Consolas, monospace;
}

[data-theme="dark"] {
  --atv-accent: #6366f1;
  --atv-accent-hover: #818cf8;
  --atv-accent-soft: rgba(99, 102, 241, .14);
  --atv-accent-ring: rgba(99, 102, 241, .25);
  --atv-bg: #0b1120;
  --atv-surface: #151e31;
  --atv-surface-2: #1e293b;
  --atv-border: #2b3a52;
  --atv-border-strong: #3b4d6b;
  --atv-text: #f1f5f9;
  --atv-text-2: #b6c2d4;
  --atv-text-3: #64748b;
  --atv-success: #34d399;
  --atv-success-soft: rgba(16, 185, 129, .12);
  --atv-shadow-xs: 0 1px 2px rgba(0,0,0,.35);
  --atv-shadow: 0 1px 2px rgba(0,0,0,.3), 0 4px 12px rgba(0,0,0,.25);
  --atv-shadow-md: 0 2px 4px rgba(0,0,0,.35), 0 10px 28px rgba(0,0,0,.35);
  --atv-shadow-lift: 0 4px 8px rgba(0,0,0,.4), 0 16px 40px rgba(99,102,241,.18);
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--atv-font);
  font-feature-settings: "cv02", "cv03", "cv11";
  background: var(--atv-bg);
  color: var(--atv-text);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background .3s ease, color .3s ease;
}
::selection { background: var(--atv-accent); color: #fff; }
::-webkit-scrollbar { width: 12px; }
::-webkit-scrollbar-track { background: var(--atv-bg); }
::-webkit-scrollbar-thumb { background: var(--atv-border-strong); border-radius: 8px; border: 3px solid var(--atv-bg); }
::-webkit-scrollbar-thumb:hover { background: var(--atv-text-3); }

.atv-container { max-width: var(--atv-container); margin: 0 auto; padding: 0 28px; }
a { color: var(--atv-accent); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }

h1, h2, h3 { line-height: 1.2; margin: 0 0 .5em; }
h1 { font-size: clamp(2rem, 4.8vw, 3.1rem); font-weight: 800; letter-spacing: -.028em; }
h2 { font-size: clamp(1.4rem, 3vw, 1.85rem); font-weight: 750; letter-spacing: -.018em; }
h3 { font-size: 1.1rem; font-weight: 700; letter-spacing: -.008em; }

@keyframes atv-fade-up { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }
.atv-fade { animation: atv-fade-up .55s cubic-bezier(.21,.6,.35,1) both; }
.atv-fade.d1 { animation-delay: .07s; } .atv-fade.d2 { animation-delay: .14s; } .atv-fade.d3 { animation-delay: .21s; }
@media (prefers-reduced-motion: reduce) { .atv-fade { animation: none; } * { transition-duration: .01ms !important; } }

/* ---------- header ---------- */
.atv-header {
  position: sticky; top: 0; z-index: 100;
  height: 64px;
  background: color-mix(in srgb, var(--atv-surface) 82%, transparent);
  backdrop-filter: blur(14px) saturate(1.4);
  -webkit-backdrop-filter: blur(14px) saturate(1.4);
  border-bottom: 1px solid var(--atv-border);
}
.atv-header-inner {
  max-width: var(--atv-container); margin: 0 auto; padding: 0 28px;
  height: 100%; display: flex; align-items: center; gap: 22px;
}
.atv-logo { display: flex; align-items: center; gap: 11px; font-weight: 800; font-size: 1.08rem; letter-spacing: -.015em; color: var(--atv-text); }
.atv-logo:hover { text-decoration: none; }
.atv-logo img, .atv-logo svg { width: 34px; height: 34px; transition: transform .35s cubic-bezier(.34,1.56,.64,1); }
.atv-logo:hover svg, .atv-logo:hover img { transform: rotate(-8deg) scale(1.06); }

.atv-nav { display: flex; gap: 2px; }
.atv-nav a {
  position: relative; color: var(--atv-text-2); font-weight: 600; font-size: .93rem;
  padding: 9px 14px; border-radius: 10px; transition: color .15s, background .15s;
}
.atv-nav a:hover { background: var(--atv-surface-2); color: var(--atv-text); text-decoration: none; }
.atv-nav a.active { color: var(--atv-accent); }
.atv-nav a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 3px; height: 2.5px;
  border-radius: 2px; background: var(--atv-accent);
}

.atv-header-search { flex: 1; max-width: 430px; margin-left: auto; position: relative; }
.atv-header-search input {
  width: 100%; height: 42px; padding: 0 64px 0 42px;
  border: 1.5px solid var(--atv-border); border-radius: 999px;
  background: var(--atv-surface-2); color: var(--atv-text);
  font-family: var(--atv-font); font-size: .92rem; outline: none;
  transition: border-color .2s, box-shadow .2s, background .2s;
}
.atv-header-search input::placeholder { color: var(--atv-text-3); }
.atv-header-search input:focus { border-color: var(--atv-accent); box-shadow: 0 0 0 4px var(--atv-accent-ring); background: var(--atv-surface); }
.atv-header-search .icon { position: absolute; left: 15px; top: 50%; transform: translateY(-50%); color: var(--atv-text-3); pointer-events: none; }
.atv-kbd {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  font-family: var(--atv-mono); font-size: .72rem; color: var(--atv-text-3);
  border: 1px solid var(--atv-border); border-bottom-width: 2px; border-radius: 6px;
  padding: 2px 7px; background: var(--atv-surface); pointer-events: none;
}

.atv-theme-toggle {
  flex-shrink: 0; width: 42px; height: 42px; border-radius: 50%;
  border: 1.5px solid var(--atv-border); background: var(--atv-surface);
  color: var(--atv-text-2); cursor: pointer; font-size: 1.05rem;
  display: flex; align-items: center; justify-content: center;
  transition: border-color .2s, color .2s, transform .2s, box-shadow .2s;
}
.atv-theme-toggle:hover { border-color: var(--atv-accent); color: var(--atv-accent); transform: rotate(18deg); box-shadow: 0 0 0 4px var(--atv-accent-ring); }

.atv-burger { display: none; width: 42px; height: 42px; border: 1.5px solid var(--atv-border); border-radius: 10px; background: var(--atv-surface); color: var(--atv-text); font-size: 1.25rem; cursor: pointer; }

/* ---------- buttons ---------- */
.atv-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 24px; border-radius: 11px; border: none;
  font-family: var(--atv-font); font-size: .95rem; font-weight: 700; letter-spacing: -.005em;
  cursor: pointer; transition: all .18s cubic-bezier(.2,.7,.4,1); text-decoration: none !important;
  position: relative;
}
.atv-btn:active { transform: translateY(1px) scale(.985); }
.atv-btn:focus-visible { outline: none; box-shadow: 0 0 0 4px var(--atv-accent-ring); }
.atv-btn-primary {
  background: linear-gradient(180deg, color-mix(in srgb, var(--atv-accent) 92%, #fff), var(--atv-accent));
  color: #fff !important;
  box-shadow: var(--atv-shadow-xs), inset 0 1px 0 rgba(255,255,255,.18);
}
.atv-btn-primary:hover { background: var(--atv-accent-hover); transform: translateY(-1.5px); box-shadow: var(--atv-shadow-lift); }
.atv-btn-outline { background: transparent; color: var(--atv-accent) !important; border: 2px solid var(--atv-accent); padding: 10px 22px; }
.atv-btn-outline:hover { background: var(--atv-accent-soft); }
.atv-btn-amber {
  background: linear-gradient(180deg, #fbbf24, var(--atv-amber));
  color: #78350f !important; text-shadow: 0 1px 0 rgba(255,255,255,.25);
  box-shadow: var(--atv-shadow-xs), inset 0 1px 0 rgba(255,255,255,.35);
}
.atv-btn-amber:hover { background: var(--atv-amber-hover); color: #fff !important; transform: translateY(-1.5px); box-shadow: var(--atv-shadow-md); }
.atv-btn-ghost { background: var(--atv-surface-2); color: var(--atv-text-2) !important; }
.atv-btn-ghost:hover { background: var(--atv-border); color: var(--atv-text) !important; }

/* ---------- cards ---------- */
.atv-card {
  position: relative; overflow: hidden;
  background: var(--atv-surface); border: 1px solid var(--atv-border);
  border-radius: var(--atv-radius); padding: 24px;
  box-shadow: var(--atv-shadow-xs);
  transition: transform .2s cubic-bezier(.2,.7,.4,1), box-shadow .2s, border-color .2s;
}
.atv-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, var(--atv-accent), #8b5cf6);
  transform: scaleX(0); transform-origin: left; transition: transform .25s ease;
}
a.atv-card { display: block; color: inherit; }
a.atv-card:hover { text-decoration: none; transform: translateY(-4px); box-shadow: var(--atv-shadow-lift); border-color: color-mix(in srgb, var(--atv-accent) 45%, var(--atv-border)); }
a.atv-card:hover::before { transform: scaleX(1); }
.atv-card h3 { margin: 0 0 7px; color: var(--atv-text); display: flex; align-items: center; gap: 8px; }
.atv-card h3 .arrow { margin-left: auto; color: var(--atv-accent); opacity: 0; transform: translateX(-6px); transition: all .2s; font-weight: 400; }
a.atv-card:hover h3 .arrow { opacity: 1; transform: none; }
.atv-card p { margin: 0; color: var(--atv-text-2); font-size: .92rem; line-height: 1.55; }

.atv-grid { display: grid; gap: 20px; }
.atv-grid-3 { grid-template-columns: repeat(3, 1fr); }
.atv-grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------- chips / badges ---------- */
.atv-chips { display: flex; flex-wrap: wrap; gap: 9px; }
.atv-chip {
  padding: 8px 16px; border-radius: 999px; font-size: .86rem; font-weight: 600;
  background: var(--atv-surface); border: 1.5px solid var(--atv-border);
  color: var(--atv-text-2) !important; cursor: pointer; transition: all .15s;
}
.atv-chip:hover { border-color: var(--atv-accent); color: var(--atv-accent) !important; text-decoration: none; transform: translateY(-1px); }
.atv-chip.active { background: var(--atv-accent); border-color: var(--atv-accent); color: #fff !important; box-shadow: var(--atv-shadow-xs); }
.atv-chip .count { color: var(--atv-text-3); font-weight: 500; margin-left: 5px; font-size: .78rem; }
.atv-chip.active .count { color: rgba(255,255,255,.75); }

.atv-badge {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 5px 13px; border-radius: 999px; font-size: .78rem; font-weight: 700; letter-spacing: .01em;
}
.atv-badge::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.atv-badge-accent { background: var(--atv-accent-soft); color: var(--atv-accent); }
.atv-badge-success { background: var(--atv-success-soft); color: var(--atv-success); }

/* feature strip */
.atv-features { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.atv-feature {
  display: flex; gap: 13px; align-items: flex-start;
  background: var(--atv-surface); border: 1px solid var(--atv-border);
  border-radius: var(--atv-radius); padding: 17px 18px;
  box-shadow: var(--atv-shadow-xs); transition: transform .2s, box-shadow .2s;
}
.atv-feature:hover { transform: translateY(-2px); box-shadow: var(--atv-shadow); }
.atv-feature .ico {
  flex-shrink: 0; width: 40px; height: 40px; border-radius: 11px;
  background: var(--atv-accent-soft); display: flex; align-items: center; justify-content: center; font-size: 1.15rem;
}
.atv-feature b { display: block; font-size: .92rem; letter-spacing: -.005em; }
.atv-feature span { font-size: .82rem; color: var(--atv-text-2); line-height: 1.4; display: block; margin-top: 2px; }

/* ---------- inputs ---------- */
.atv-input, .atv-select, .atv-textarea {
  width: 100%; padding: 12px 15px;
  border: 1.5px solid var(--atv-border); border-radius: var(--atv-radius-sm);
  background: var(--atv-surface); color: var(--atv-text);
  font-family: var(--atv-font); font-size: .95rem; outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.atv-input:hover, .atv-select:hover, .atv-textarea:hover { border-color: var(--atv-border-strong); }
.atv-input:focus, .atv-select:focus, .atv-textarea:focus { border-color: var(--atv-accent); box-shadow: 0 0 0 4px var(--atv-accent-ring); }
.atv-textarea { min-height: 160px; font-family: var(--atv-mono); font-size: .88rem; line-height: 1.6; }
.atv-label { display: flex; justify-content: space-between; font-weight: 600; font-size: .87rem; margin-bottom: 7px; color: var(--atv-text-2); }
.atv-label .val { color: var(--atv-accent); font-weight: 700; font-variant-numeric: tabular-nums; }

input[type="range"].atv-range {
  -webkit-appearance: none; appearance: none; width: 100%; height: 6px; border-radius: 999px;
  background: linear-gradient(90deg, var(--atv-accent) var(--fill, 85%), var(--atv-border) var(--fill, 85%));
  outline: none; cursor: pointer;
}
input[type="range"].atv-range::-webkit-slider-thumb {
  -webkit-appearance: none; width: 20px; height: 20px; border-radius: 50%;
  background: #fff; border: 3px solid var(--atv-accent);
  box-shadow: var(--atv-shadow); cursor: grab; transition: transform .15s;
}
input[type="range"].atv-range::-webkit-slider-thumb:hover { transform: scale(1.15); }
input[type="range"].atv-range::-webkit-slider-thumb:active { cursor: grabbing; }

input[type="color"].atv-color {
  width: 58px; height: 42px; padding: 4px; cursor: pointer;
  border: 1.5px solid var(--atv-border); border-radius: var(--atv-radius-sm);
  background: var(--atv-surface); transition: border-color .2s, box-shadow .2s;
}
input[type="color"].atv-color:hover { border-color: var(--atv-accent); box-shadow: 0 0 0 4px var(--atv-accent-ring); }

/* ---------- hero ---------- */
.atv-hero { position: relative; text-align: center; padding: 76px 24px 56px; overflow: hidden; }
.atv-hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(600px 280px at 50% -60px, var(--atv-accent-soft), transparent 70%),
    linear-gradient(180deg, var(--atv-surface), var(--atv-bg));
}
.atv-hero::after {
  content: ""; position: absolute; inset: 0; z-index: -1; opacity: .5;
  background-image: radial-gradient(var(--atv-border) 1px, transparent 1px);
  background-size: 26px 26px;
  mask-image: radial-gradient(560px 300px at 50% 0%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(560px 300px at 50% 0%, #000 30%, transparent 75%);
}
.atv-hero .accent {
  background: linear-gradient(92deg, var(--atv-accent), #8b5cf6 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.atv-hero p.sub { font-size: 1.13rem; color: var(--atv-text-2); max-width: 600px; margin: 0 auto 30px; }
.atv-hero-pill {
  display: inline-flex; align-items: center; gap: 8px; margin-bottom: 22px;
  padding: 7px 16px; border-radius: 999px; font-size: .84rem; font-weight: 600;
  background: var(--atv-surface); border: 1px solid var(--atv-border);
  color: var(--atv-text-2); box-shadow: var(--atv-shadow-xs);
}
.atv-hero-pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--atv-success); box-shadow: 0 0 0 4px var(--atv-success-soft); }

.atv-hero-search { max-width: 660px; margin: 0 auto 36px; position: relative; }
.atv-hero-search input {
  width: 100%; height: 60px; padding: 0 136px 0 54px;
  border: 2px solid var(--atv-border); border-radius: 18px;
  background: var(--atv-surface); color: var(--atv-text);
  font-family: var(--atv-font); font-size: 1.05rem; outline: none;
  box-shadow: var(--atv-shadow-md); transition: border-color .2s, box-shadow .2s;
}
.atv-hero-search input:focus { border-color: var(--atv-accent); box-shadow: 0 0 0 5px var(--atv-accent-ring), var(--atv-shadow-md); }
.atv-hero-search .icon { position: absolute; left: 19px; top: 50%; transform: translateY(-50%); font-size: 1.25rem; color: var(--atv-text-3); pointer-events: none; }
.atv-hero-search button {
  position: absolute; right: 8px; top: 8px; bottom: 8px;
  padding: 0 26px; border: none; border-radius: 12px;
  background: linear-gradient(180deg, color-mix(in srgb, var(--atv-accent) 92%, #fff), var(--atv-accent));
  color: #fff; font-family: var(--atv-font); font-weight: 700; font-size: .97rem; cursor: pointer;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.18); transition: background .2s, transform .15s;
}
.atv-hero-search button:hover { background: var(--atv-accent-hover); }
.atv-hero-search button:active { transform: scale(.97); }

.atv-stats { display: flex; justify-content: center; flex-wrap: wrap; }
.atv-stat { padding: 0 36px; position: relative; }
.atv-stat + .atv-stat::before { content: ""; position: absolute; left: 0; top: 12%; bottom: 12%; width: 1px; background: var(--atv-border); }
.atv-stat b { display: block; font-size: 2rem; font-weight: 800; letter-spacing: -.02em; color: var(--atv-accent); font-variant-numeric: tabular-nums; }
.atv-stat span { font-size: .88rem; color: var(--atv-text-2); }

/* ---------- sections ---------- */
.atv-section { padding: 44px 0; }
.atv-section-head { display: flex; align-items: flex-end; justify-content: space-between; margin-bottom: 24px; gap: 16px; }
.atv-section-head h2 { margin: 0; }
.atv-section-head p { margin: 0; color: var(--atv-text-3); font-size: .9rem; }
.atv-section-head .more { font-weight: 600; font-size: .92rem; white-space: nowrap; }
.atv-eyebrow { font-size: .76rem; font-weight: 800; letter-spacing: .1em; text-transform: uppercase; color: var(--atv-accent); margin-bottom: 7px; }

/* category card */
.atv-cat-card { display: flex; gap: 15px; align-items: flex-start; }
.atv-cat-icon {
  flex-shrink: 0; width: 48px; height: 48px; border-radius: 13px;
  display: flex; align-items: center; justify-content: center; font-size: 1.4rem;
  background: var(--atv-accent-soft);
  transition: transform .25s cubic-bezier(.34,1.56,.64,1);
}
a.atv-card:hover .atv-cat-icon { transform: scale(1.12) rotate(-4deg); }
.atv-cat-icon.t-image { background: rgba(99,102,241,.12); }
.atv-cat-icon.t-time { background: rgba(245,158,11,.14); }
.atv-cat-icon.t-dev { background: rgba(6,182,212,.13); }
.atv-cat-icon.t-num { background: rgba(139,92,246,.13); }
.atv-cat-icon.t-text { background: rgba(20,184,166,.13); }
.atv-cat-icon.t-gen { background: rgba(236,72,153,.12); }
.atv-cat-icon.t-fin { background: rgba(16,185,129,.13); }
.atv-cat-icon.t-doc { background: rgba(239,68,68,.12); }
.atv-cat-icon.t-fra { background: rgba(14,165,233,.13); }
.atv-cat-card .count { display: inline-block; margin-top: 8px; font-size: .78rem; color: var(--atv-text-3); font-weight: 600; background: var(--atv-surface-2); border-radius: 999px; padding: 3px 10px; }

/* ---------- tool page ---------- */
.atv-breadcrumbs { font-size: .85rem; color: var(--atv-text-3); padding: 20px 0 4px; display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.atv-breadcrumbs a { color: var(--atv-text-3); }
.atv-breadcrumbs a:hover { color: var(--atv-accent); text-decoration: none; }
.atv-breadcrumbs .sep { color: var(--atv-border-strong); }
.atv-breadcrumbs .here { color: var(--atv-text-2); font-weight: 600; }

.atv-tool-head { text-align: center; padding: 20px 0 30px; }
.atv-tool-head h1 { margin-bottom: 10px; }
.atv-tool-head p { color: var(--atv-text-2); max-width: 640px; margin: 0 auto; font-size: 1.02rem; }

.atv-panel {
  background: var(--atv-surface); border: 1px solid var(--atv-border);
  border-radius: var(--atv-radius); padding: 26px; box-shadow: var(--atv-shadow);
}
.atv-panel-title { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 1.04rem; letter-spacing: -.01em; margin-bottom: 18px; }
.atv-panel-title .ico { width: 34px; height: 34px; border-radius: 9px; background: var(--atv-accent-soft); display: flex; align-items: center; justify-content: center; font-size: 1rem; }
.atv-panels { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.atv-dropzone {
  border: 2px dashed var(--atv-border-strong); border-radius: var(--atv-radius);
  padding: 46px 20px; text-align: center; color: var(--atv-text-2);
  background:
    radial-gradient(420px 180px at 50% 0%, var(--atv-accent-soft), transparent 75%),
    var(--atv-surface-2);
  cursor: pointer; transition: border-color .2s, transform .2s;
}
.atv-dropzone:hover { border-color: var(--atv-accent); transform: scale(1.005); }
.atv-dropzone .big { font-size: 2.1rem; margin-bottom: 10px; }
.atv-dropzone small { color: var(--atv-text-3); }

.atv-result-empty {
  border: 1px solid var(--atv-border); border-radius: 11px; min-height: 248px;
  display: flex; flex-direction: column; gap: 8px; align-items: center; justify-content: center;
  color: var(--atv-text-3); background:
    repeating-linear-gradient(45deg, transparent 0 12px, color-mix(in srgb, var(--atv-border) 30%, transparent) 12px 13px),
    var(--atv-surface-2);
  text-align: center; padding: 22px; font-size: .93rem;
}

/* SEO content blocks */
.atv-content-block {
  background: var(--atv-surface); border: 1px solid var(--atv-border);
  border-radius: var(--atv-radius); padding: 30px 34px; margin-bottom: 22px; box-shadow: var(--atv-shadow-xs);
}
.atv-content-block h2 { margin-top: 0; display: flex; align-items: center; gap: 12px; }
.atv-content-block h2::before { content: ""; width: 4px; height: 1.1em; border-radius: 4px; background: linear-gradient(180deg, var(--atv-accent), #8b5cf6); }
.atv-content-block p, .atv-content-block li { color: var(--atv-text-2); }
.atv-content-block ol { padding-left: 0; list-style: none; counter-reset: step; }
.atv-content-block ol li { counter-increment: step; position: relative; padding: 0 0 14px 46px; }
.atv-content-block ol li::before {
  content: counter(step); position: absolute; left: 0; top: 1px;
  width: 30px; height: 30px; border-radius: 9px; font-size: .85rem; font-weight: 800;
  background: var(--atv-accent-soft); color: var(--atv-accent);
  display: flex; align-items: center; justify-content: center;
}

/* FAQ */
.atv-faq-item { border-bottom: 1px solid var(--atv-border); }
.atv-faq-item:last-child { border-bottom: none; }
.atv-faq-item summary {
  cursor: pointer; font-weight: 700; padding: 17px 0; list-style: none;
  display: flex; justify-content: space-between; align-items: center; gap: 14px; color: var(--atv-text);
  transition: color .15s;
}
.atv-faq-item summary::-webkit-details-marker { display: none; }
.atv-faq-item summary:hover { color: var(--atv-accent); }
.atv-faq-item summary .chev { flex-shrink: 0; width: 26px; height: 26px; border-radius: 8px; background: var(--atv-surface-2); color: var(--atv-accent); display: flex; align-items: center; justify-content: center; font-size: .8rem; transition: transform .25s, background .2s; }
.atv-faq-item[open] summary .chev { transform: rotate(180deg); background: var(--atv-accent-soft); }
.atv-faq-item p { margin: 0 0 18px; color: var(--atv-text-2); }

/* post footer */
.atv-post-footer {
  display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
  background: linear-gradient(135deg, var(--atv-accent-soft), var(--atv-surface));
  border: 1px solid var(--atv-border);
  border-radius: var(--atv-radius); padding: 18px 22px; margin-top: 30px;
}

/* ---------- footer ---------- */
.atv-footer { border-top: 1px solid var(--atv-border); margin-top: 60px; padding: 44px 0 36px; background: var(--atv-surface); }
.atv-footer-inner { max-width: var(--atv-container); margin: 0 auto; padding: 0 28px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 28px; }
.atv-footer .brand { max-width: 320px; }
.atv-footer .brand .atv-logo { margin-bottom: 10px; }
.atv-footer p { margin: 0; color: var(--atv-text-3); font-size: .87rem; line-height: 1.6; }
.atv-footer h4 { margin: 0 0 12px; font-size: .82rem; font-weight: 800; letter-spacing: .08em; text-transform: uppercase; color: var(--atv-text-2); }
.atv-footer ul { list-style: none; margin: 0; padding: 0; }
.atv-footer ul li { margin-bottom: 8px; }
.atv-footer ul a { color: var(--atv-text-3); font-size: .9rem; }
.atv-footer ul a:hover { color: var(--atv-accent); }
.atv-footer .bottom { max-width: var(--atv-container); margin: 32px auto 0; padding: 20px 28px 0; border-top: 1px solid var(--atv-border); display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; color: var(--atv-text-3); font-size: .84rem; }

/* ---------- responsive ---------- */
@media (max-width: 1024px) {
  .atv-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .atv-grid-3 { grid-template-columns: repeat(2, 1fr); }
  .atv-features { grid-template-columns: repeat(2, 1fr); }
  .atv-panels { grid-template-columns: 1fr; }
  .atv-sidebar { display: none; }
}
@media (max-width: 640px) {
  .atv-nav, .atv-header-search { display: none; }
  .atv-burger { display: flex; align-items: center; justify-content: center; margin-left: auto; }
  .atv-grid-3, .atv-grid-4 { grid-template-columns: 1fr; }
  .atv-features { grid-template-columns: 1fr 1fr; gap: 10px; }
  .atv-feature { padding: 13px 14px; }
  .atv-stat { padding: 0 18px; }
  .atv-stat b { font-size: 1.6rem; }
  .atv-hero { padding: 44px 16px 36px; }
  .atv-hero-search input { height: 54px; padding: 0 60px 0 48px; }
  .atv-hero-search button { padding: 0 16px; }
  .atv-container { padding: 0 18px; }
  .atv-content-block { padding: 22px 20px; }
  .atv-footer-inner { flex-direction: column; }
}