/* ==========================================================================
   NeuroBox — matrix.css
   Design tokens + two theme skins (GPT / Claude) with smooth cross-fade.
   ========================================================================== */

:root{
  --font-display: 'Space Grotesk', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  --ease: cubic-bezier(.22,1,.36,1);
  --theme-speed: 550ms;

  --text-0: #f5f7fa;
  --text-1: rgba(245,247,250,.72);
  --text-2: rgba(245,247,250,.5);

  --border: rgba(255,255,255,.09);
  --glass: rgba(255,255,255,.04);
  --glass-strong: rgba(255,255,255,.07);

  --shadow-lg: 0 30px 80px -20px rgba(0,0,0,.6);
  --container: 1180px;
}

/* ---- theme: claude (matrix / cyber) ---- */
[data-theme="claude"]{
  --bg: #030712;
  --bg-alt: #060b16;
  --accent: #22c55e;
  --accent-2: #10b981;
  --accent-rgb: 34,197,94;
  --accent2-rgb: 16,185,129;
}

/* ---- theme: gpt (infinite intelligence) ---- */
[data-theme="gpt"]{
  --bg: #09090f;
  --bg-alt: #0d0d18;
  --accent: #8b5cf6;
  --accent-2: #f59e0b;
  --accent-rgb: 139,92,246;
  --accent2-rgb: 245,158,11;
}

/* ---- theme: audio (deep-space signal array) ---- */
[data-theme="audio"]{
  --bg: #05060d;
  --bg-alt: #070a14;
  --accent: #38bdf8;
  --accent-2: #fb923c;
  --accent-rgb: 56,189,248;
  --accent2-rgb: 251,146,60;
}

/* ---- theme: video (grand ornate cinema) ---- */
[data-theme="video"]{
  --bg: #170f10;
  --bg-alt: #1d1314;
  --accent: #f4a4c0;
  --accent-2: #d4af37;
  --accent-rgb: 244,164,192;
  --accent2-rgb: 212,175,55;
}

/* ---- theme: image (vortex / energy forge) ---- */
[data-theme="image"]{
  --bg: #0c0705;
  --bg-alt: #120906;
  --accent: #fb923c;
  --accent-2: #dc2626;
  --accent-rgb: 251,146,60;
  --accent2-rgb: 220,38,38;
}

*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *, *::before, *::after{ animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
}

body{
  margin: 0;
  background: var(--bg);
  color: var(--text-0);
  font-family: var(--font-body);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  transition: background var(--theme-speed) var(--ease);
}

h1,h2,h3{ font-family: var(--font-display); margin: 0; letter-spacing: -.02em; }
p{ margin: 0; }
a{ color: inherit; text-decoration: none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
svg{ display:block; }

.wrap{ max-width: var(--container); margin: 0 auto; padding: 0 28px; }
.wrap--narrow{ max-width: 760px; }

/* ---------------------------------- background fx layer ---------------------------------- */
.bg-fx{ position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }

.bg-photo{
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0;
  transition: opacity var(--theme-speed) var(--ease);
}
.bg-photo::after{
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(180deg, rgba(3,7,18,.55), var(--bg) 88%);
}
[data-theme="claude"] .bg-photo--claude{ opacity: .6; }
[data-theme="gpt"] .bg-photo--gpt{ opacity: .6; }
[data-theme="audio"] .bg-photo--audio{ opacity: .65; }
[data-theme="video"] .bg-photo--video{ opacity: .6; }
[data-theme="image"] .bg-photo--image{ opacity: .65; }

#fx-canvas{ position: absolute; inset: 0; width: 100%; height: 100%; opacity: .55; transition: opacity var(--theme-speed) var(--ease); }

.bg-glow{
  position: absolute;
  width: 60vw; height: 60vw;
  max-width: 900px; max-height: 900px;
  border-radius: 50%;
  filter: blur(120px);
  opacity: .28;
  transition: background var(--theme-speed) var(--ease), opacity var(--theme-speed) var(--ease);
}
.bg-glow--a{ top: -10%; left: -10%; background: radial-gradient(circle, rgba(var(--accent-rgb),.9), transparent 70%); }
.bg-glow--b{ bottom: -15%; right: -10%; background: radial-gradient(circle, rgba(var(--accent2-rgb),.85), transparent 70%); }

main, header, footer{ position: relative; z-index: 1; }

/* ---------------------------------- topbar ---------------------------------- */
.topbar{
  position: sticky; top: 0; z-index: 40;
  backdrop-filter: blur(16px) saturate(140%);
  background: linear-gradient(to bottom, rgba(3,7,18,.65), rgba(3,7,18,0));
  border-bottom: 1px solid transparent;
}
.topbar__inner{
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; padding-top: 18px; padding-bottom: 18px;
}

.logo{ display: flex; align-items: center; gap: 10px; font-family: var(--font-display); font-weight: 600; font-size: 18px; }
.logo__mark{ color: var(--accent); display:flex; transition: color var(--theme-speed) var(--ease); }
.logo--footer{ font-size: 16px; }

.theme-switch{
  position: relative;
  display: inline-flex;
  padding: 4px;
  gap: 2px;
  border-radius: 999px;
  background: var(--glass);
  border: 1px solid var(--border);
}
.theme-switch__btn{
  position: relative; z-index: 2;
  display: flex; align-items: center; gap: 6px;
  padding: 8px 13px;
  border-radius: 999px;
  font-size: 12.5px; font-weight: 600;
  color: var(--text-2);
  transition: color .25s var(--ease);
  white-space: nowrap;
}
.theme-switch__btn.is-active{ color: #04070d; }
@media (max-width: 860px){
  .theme-switch__btn{ padding: 8px 10px; font-size: 0; gap: 0; }
  .theme-switch__btn .dot{ width: 9px; height: 9px; }
}
.theme-switch__thumb{
  position: absolute; z-index: 1;
  top: 4px; left: 4px;
  height: calc(100% - 8px);
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transition: transform .4s var(--ease), width .4s var(--ease), background var(--theme-speed) var(--ease);
  will-change: transform;
}
/* left/width/transform are now computed in JS (updateThemeSwitchThumb) from the
   active button's real bounding box — fixed % math broke down because GPT,
   Claude, Image, Audio, Video are not equal-width labels, which is exactly
   what caused the thumb to drift and look off-center for later items. */

.dot{ width: 7px; height: 7px; border-radius: 50%; }
.dot--gpt{ background: linear-gradient(135deg,#8b5cf6,#f59e0b); }
.dot--claude{ background: linear-gradient(135deg,#22c55e,#10b981); }
.dot--image{ background: linear-gradient(135deg,#fb923c,#dc2626); }
.dot--audio{ background: linear-gradient(135deg,#38bdf8,#fb923c); }
.dot--video{ background: linear-gradient(135deg,#f4a4c0,#d4af37); }

.topbar__cta{ display: none; }
.topbar__actions{ display: flex; align-items: center; gap: 10px; }
@media (min-width: 720px){ .topbar__cta{ display: inline-flex; } }

.topbar__chat-btn{ padding: 10px 16px 10px 14px; font-size: 13.5px; }
.topbar__chat-btn svg{ flex-shrink: 0; }
@media (max-width: 480px){ .topbar__chat-btn span{ display:none; } }

/* ---------------------------------- buttons ---------------------------------- */
.btn{
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 24px;
  border-radius: 999px;
  font-weight: 600; font-size: 14.5px;
  white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
}
.btn--primary{
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04070d;
  box-shadow: 0 8px 30px -8px rgba(var(--accent-rgb),.55);
}
.btn--primary:hover{ transform: translateY(-2px); box-shadow: 0 14px 36px -8px rgba(var(--accent-rgb),.7); }
.btn--outline{ border: 1px solid var(--border); background: var(--glass); color: var(--text-0); }
.btn--outline:hover{ border-color: rgba(var(--accent-rgb),.5); transform: translateY(-2px); }
.btn--ghost{ border: 1px solid var(--border); color: var(--text-1); padding: 10px 18px; font-size: 13.5px; }
.btn--ghost:hover{ color: var(--text-0); border-color: rgba(var(--accent-rgb),.5); }
.btn--lg{ padding: 16px 32px; font-size: 16px; }

/* ---------------------------------- reveal on scroll ---------------------------------- */
.reveal{ opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-visible{ opacity: 1; transform: translateY(0); }
.reveal[data-delay="1"]{ transition-delay: .08s; }
.reveal[data-delay="2"]{ transition-delay: .16s; }
.reveal[data-delay="3"]{ transition-delay: .24s; }

/* ---------------------------------- hero ---------------------------------- */
.hero{
  display: grid; grid-template-columns: 1fr; gap: 56px;
  padding: 64px 28px 100px;
  align-items: center;
}
@media (min-width: 960px){
  .hero{ grid-template-columns: 1.05fr .95fr; padding-top: 88px; padding-bottom: 130px; }
}

.eyebrow{
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .06em;
  color: var(--accent); text-transform: uppercase;
  padding: 7px 14px; border-radius: 999px;
  border: 1px solid rgba(var(--accent-rgb),.35);
  background: rgba(var(--accent-rgb),.08);
  margin-bottom: 22px;
  transition: color var(--theme-speed) var(--ease), border-color var(--theme-speed) var(--ease), background var(--theme-speed) var(--ease);
}
.eyebrow__pulse{ width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 0 rgba(var(--accent-rgb),.7); animation: pulse 2s infinite; }
@keyframes pulse{
  0%{ box-shadow: 0 0 0 0 rgba(var(--accent-rgb),.55); }
  70%{ box-shadow: 0 0 0 8px rgba(var(--accent-rgb),0); }
  100%{ box-shadow: 0 0 0 0 rgba(var(--accent-rgb),0); }
}

.hero__title{
  font-size: clamp(34px, 5.2vw, 60px);
  line-height: 1.06;
  font-weight: 700;
  max-width: 15ch;
  margin-bottom: 22px;
}
.hero__subtitle{
  font-size: clamp(16px, 1.6vw, 18.5px);
  color: var(--text-1);
  max-width: 46ch;
  margin-bottom: 34px;
}
.hero__actions{ display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 46px; }

.hero__stats{ display: flex; gap: 34px; flex-wrap: wrap; margin: 0; }
.hero__stat dt{ font-family: var(--font-display); font-size: 26px; font-weight: 700; color: var(--accent); transition: color var(--theme-speed) var(--ease); }
.hero__stat dd{ margin: 2px 0 0; font-size: 13px; color: var(--text-2); }

.hero__visual{ position: relative; display: flex; flex-direction: column; align-items: center; }
.hero-orb{
  position: relative;
  width: min(420px, 84vw); aspect-ratio: 1/1;
  display: flex; align-items: center; justify-content: center;
  animation: float 6s ease-in-out infinite;
}
@keyframes float{ 0%,100%{ transform: translateY(0); } 50%{ transform: translateY(-16px); } }

.hero-orb__ring{
  position: absolute; border-radius: 50%;
  border: 1px solid rgba(var(--accent-rgb),.28);
  transition: border-color var(--theme-speed) var(--ease);
}
.hero-orb__ring--1{ inset: 0; }
.hero-orb__ring--2{ inset: 14%; border-color: rgba(var(--accent2-rgb),.22); }
.hero-orb__ring--3{ inset: 28%; }
.hero-orb__ring--1{ animation: spin 22s linear infinite; }
.hero-orb__ring--2{ animation: spin 16s linear infinite reverse; }
.hero-orb__ring--3{ animation: spin 30s linear infinite; }
@keyframes spin{ to{ transform: rotate(360deg); } }

.hero-core{
  position: absolute;
  top: 50%; left: 50%;
  width: 72%; height: 72%;
  object-fit: contain;
  filter: drop-shadow(0 0 26px rgba(var(--accent-rgb),.55));
  opacity: 0; transform: translate(-50%,-50%) scale(.92);
  transition: opacity var(--theme-speed) var(--ease), transform var(--theme-speed) var(--ease);
}
[data-theme="claude"] .hero-core--claude{ opacity: 1; transform: translate(-50%,-50%) scale(1); }
[data-theme="gpt"] .hero-core--gpt{ opacity: 1; transform: translate(-50%,-50%) scale(1); }
[data-theme="audio"] .hero-core--audio{ opacity: 1; transform: translate(-50%,-50%) scale(1); }
[data-theme="video"] .hero-core--video{ opacity: 1; transform: translate(-50%,-50%) scale(1); }
[data-theme="image"] .hero-core--image{
  opacity: 1;
  transform: translate(-50%,-50%) scale(1) perspective(900px) rotateX(52deg) rotateZ(-6deg);
}
.hero-core--image{
  transform: translate(-50%,-50%) scale(.92) perspective(900px) rotateX(52deg) rotateZ(-6deg);
  animation: imageCoreSpin 22s linear infinite;
  transform-style: preserve-3d;
}
@keyframes imageCoreSpin{
  from{ transform: translate(-50%,-50%) scale(1) perspective(900px) rotateX(52deg) rotateZ(-6deg) rotate(0deg); }
  to{   transform: translate(-50%,-50%) scale(1) perspective(900px) rotateX(52deg) rotateZ(-6deg) rotate(360deg); }
}

.hero-orb__caption{
  margin-top: 22px;
  font-family: var(--font-mono); font-size: 12.5px;
  color: var(--text-2); letter-spacing: .04em;
}

/* ---------------------------------- generic section ---------------------------------- */
.section{ padding: 90px 28px; }
.section__eyebrow{
  font-family: var(--font-mono); font-size: 12.5px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent); margin-bottom: 14px; transition: color var(--theme-speed) var(--ease);
}
.section__title{ font-size: clamp(28px, 3.6vw, 42px); margin-bottom: 16px; max-width: 20ch; }
.section__subtitle{ color: var(--text-1); max-width: 58ch; font-size: 16.5px; margin-bottom: 52px; }

.grid{ display: grid; gap: 20px; }
.grid--features{ grid-template-columns: repeat(1, 1fr); }
@media (min-width: 620px){ .grid--features{ grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px){ .grid--features{ grid-template-columns: repeat(3, 1fr); } }

.grid--models{ grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 780px){ .grid--models{ grid-template-columns: 1fr 1fr; } }
@media (min-width: 1140px){ .grid--models{ grid-template-columns: repeat(3, 1fr); } }

.grid--pricing{ grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 860px){ .grid--pricing{ grid-template-columns: repeat(3, 1fr); align-items: start; } }

/* ---------------------------------- glass card base ---------------------------------- */
.card, .model-card, .price-card{
  background: linear-gradient(180deg, var(--glass-strong), var(--glass));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(18px) saturate(140%);
  transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease), background var(--theme-speed) var(--ease);
}

/* ---- feature cards ---- */
.card--feature{ padding: 30px 26px; }
.card--feature:hover{
  transform: translateY(-6px);
  border-color: rgba(var(--accent-rgb),.4);
  box-shadow: 0 20px 50px -20px rgba(var(--accent-rgb),.35);
}
.card__icon{
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; border-radius: 12px;
  color: var(--accent);
  background: rgba(var(--accent-rgb),.12);
  margin-bottom: 20px;
  transition: color var(--theme-speed) var(--ease), background var(--theme-speed) var(--ease);
}
.card--feature h3{ font-size: 18px; margin-bottom: 10px; }
.card--feature p{ color: var(--text-1); font-size: 14.5px; }

/* ---- model cards ---- */
.model-card{ padding: 34px 30px; position: relative; overflow: hidden; }
.model-card::before{
  content: ''; position: absolute; top: -40%; right: -30%;
  width: 260px; height: 260px; border-radius: 50%;
  filter: blur(70px); opacity: .35;
}
.model-card--gpt::before{ background: radial-gradient(circle, #8b5cf6, transparent 70%); }
.model-card--claude::before{ background: radial-gradient(circle, #22c55e, transparent 70%); }
.model-card--image::before{ background: radial-gradient(circle, #fb923c, transparent 70%); }
.model-card--video::before{ background: radial-gradient(circle, #f4a4c0, transparent 70%); }
.model-card--audio::before{ background: radial-gradient(circle, #38bdf8, transparent 70%); }
.model-card:hover{ transform: translateY(-6px); }

/* signature background textures per new model, echoing the site's circuit/particle language */
.model-card--image{
  background-image:
    linear-gradient(180deg, var(--glass-strong), var(--glass)),
    repeating-linear-gradient(0deg, rgba(251,146,60,.07) 0 1px, transparent 1px 22px),
    repeating-linear-gradient(90deg, rgba(251,146,60,.07) 0 1px, transparent 1px 22px);
}
.model-card--video{
  background-image:
    linear-gradient(180deg, var(--glass-strong), var(--glass)),
    radial-gradient(circle at 30% 20%, rgba(212,175,55,.10) 0, transparent 45%),
    repeating-radial-gradient(circle at 50% 50%, rgba(244,164,192,.07) 0 2px, transparent 2px 26px);
  background-position: 0 0, 0 0, 0 0;
}
.model-card--audio{
  background-image:
    linear-gradient(180deg, var(--glass-strong), var(--glass)),
    repeating-linear-gradient(90deg, rgba(56,189,248,.09) 0 2px, transparent 2px 10px, transparent 10px 12px, rgba(56,189,248,.05) 12px 14px, transparent 14px 22px);
}

.model-card__head{ display: flex; align-items: center; gap: 12px; margin-bottom: 14px; position: relative; }
.model-card__badge{
  font-family: var(--font-mono); font-size: 11.5px; font-weight: 600; letter-spacing: .06em;
  padding: 5px 11px; border-radius: 999px;
}
.model-card--gpt .model-card__badge{ background: rgba(139,92,246,.16); color: #a78bfa; border: 1px solid rgba(139,92,246,.35); }
.model-card--claude .model-card__badge{ background: rgba(34,197,94,.16); color: #4ade80; border: 1px solid rgba(34,197,94,.35); }
.model-card--image .model-card__badge{ background: rgba(251,146,60,.16); color: #fdba74; border: 1px solid rgba(251,146,60,.35); }
.model-card--video .model-card__badge{ background: rgba(244,164,192,.16); color: #f4a4c0; border: 1px solid rgba(212,175,55,.4); }
.model-card--audio .model-card__badge{ background: rgba(56,189,248,.16); color: #7dd3fc; border: 1px solid rgba(56,189,248,.35); }
.model-card h3{ font-size: 20px; }
.model-card__desc{ color: var(--text-1); font-size: 15px; margin-bottom: 22px; position: relative; }
.model-card__list{ display: flex; flex-direction: column; gap: 12px; position: relative; }
.model-card__list li{ position: relative; padding-left: 22px; font-size: 14.5px; color: var(--text-1); }
.model-card__list li::before{
  content: ''; position: absolute; left: 0; top: 7px;
  width: 8px; height: 8px; border-radius: 2px; transform: rotate(45deg);
}
.model-card--gpt .model-card__list li::before{ background: linear-gradient(135deg,#8b5cf6,#f59e0b); }
.model-card--claude .model-card__list li::before{ background: linear-gradient(135deg,#22c55e,#10b981); }
.model-card--image .model-card__list li::before{ background: linear-gradient(135deg,#fb923c,#dc2626); }
.model-card--video .model-card__list li::before{ background: linear-gradient(135deg,#f4a4c0,#d4af37); }
.model-card--audio .model-card__list li::before{ background: linear-gradient(135deg,#38bdf8,#fb923c); }

/* ---- pricing cards ---- */
.price-card{ padding: 34px 28px; display: flex; flex-direction: column; position: relative; }
.price-card:hover{ transform: translateY(-6px); border-color: rgba(var(--accent-rgb),.35); }
.price-card--featured{
  border-color: rgba(var(--accent-rgb),.55);
  background: linear-gradient(180deg, rgba(var(--accent-rgb),.14), var(--glass));
  box-shadow: 0 24px 60px -24px rgba(var(--accent-rgb),.45);
}
@media (min-width: 860px){ .price-card--featured{ transform: scale(1.045); } .price-card--featured:hover{ transform: scale(1.045) translateY(-6px); } }
.price-card__tag{
  position: absolute; top: -13px; left: 28px;
  font-family: var(--font-mono); font-size: 11px; font-weight: 600; letter-spacing: .05em;
  padding: 5px 12px; border-radius: 999px; color: #04070d;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.price-card__name{ font-size: 20px; margin-bottom: 8px; }
.price-card__desc{ color: var(--text-1); font-size: 14px; margin-bottom: 22px; min-height: 40px; }
.price-card__price{ font-family: var(--font-display); font-size: 38px; font-weight: 700; margin-bottom: 26px; }
.price-card__price span{ font-family: var(--font-body); font-size: 13px; font-weight: 500; color: var(--text-2); }
.price-card__list{ display: flex; flex-direction: column; gap: 12px; margin-bottom: 30px; flex: 1; }
.price-card__list li{ position: relative; padding-left: 24px; font-size: 14px; color: var(--text-1); }
.price-card__list li::before{
  content: '✓'; position: absolute; left: 0; top: -1px;
  color: var(--accent); font-weight: 700; font-size: 13px;
}
.price-card__cta{ width: 100%; }

/* ---------------------------------- faq accordion ---------------------------------- */
.accordion{ display: flex; flex-direction: column; gap: 12px; }
.accordion__item{
  border: 1px solid var(--border); border-radius: var(--radius-md);
  background: var(--glass); overflow: hidden;
  transition: border-color var(--theme-speed) var(--ease);
}
.accordion__trigger{
  width: 100%; display: flex; align-items: center; justify-content: space-between;
  gap: 16px; padding: 20px 22px; text-align: left; font-size: 15.5px; font-weight: 600;
}
.accordion__icon{ position: relative; width: 18px; height: 18px; flex-shrink: 0; }
.accordion__icon::before, .accordion__icon::after{
  content: ''; position: absolute; top: 50%; left: 50%;
  background: var(--accent); transition: transform .35s var(--ease), background var(--theme-speed) var(--ease);
}
.accordion__icon::before{ width: 12px; height: 2px; transform: translate(-50%,-50%); }
.accordion__icon::after{ width: 2px; height: 12px; transform: translate(-50%,-50%); }
.accordion__trigger[aria-expanded="true"] .accordion__icon::after{ transform: translate(-50%,-50%) rotate(90deg) scaleX(0); }

.accordion__panel{
  display: grid; grid-template-rows: 0fr; opacity: 0;
  transition: grid-template-rows .4s var(--ease), opacity .3s var(--ease);
}
.accordion__trigger[aria-expanded="true"] + .accordion__panel{ grid-template-rows: 1fr; opacity: 1; }
.accordion__panel > p{ overflow: hidden; padding: 0 22px 20px; color: var(--text-1); font-size: 14.5px; line-height: 1.65; }

/* ---------------------------------- final cta ---------------------------------- */
.cta-final{ padding: 40px 28px 120px; }
.cta-final__inner{
  text-align: center;
  padding: 72px 28px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--border);
  background: linear-gradient(160deg, rgba(var(--accent-rgb),.12), var(--glass) 60%);
  position: relative; overflow: hidden;
}
.cta-final__inner h2{ font-size: clamp(26px, 4vw, 40px); margin-bottom: 14px; }
.cta-final__inner p{ color: var(--text-1); font-size: 16px; margin-bottom: 32px; }

/* ---------------------------------- footer ---------------------------------- */
.footer{ border-top: 1px solid var(--border); padding: 32px 28px; }
.footer__inner{ display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 18px; }
.footer__copy{ color: var(--text-2); font-size: 13px; }
.footer__links{ display: flex; gap: 22px; font-size: 13.5px; color: var(--text-1); }
.footer__links a:hover{ color: var(--accent); }

.footer__legal{
  display: flex; flex-wrap: wrap; gap: 18px;
  margin-top: 18px; padding-top: 18px;
  border-top: 1px solid var(--border);
  font-size: 12.5px; color: var(--text-2);
}
.footer__legal a{ color: var(--text-2); }
.footer__legal a:hover{ color: var(--accent); }

/* ==========================================================================
   LEGAL / STATIC CONTENT PAGES (contacts, offer, privacy, refund)
   ========================================================================== */
.legal-header{
  padding: 140px 28px 20px;
}
.legal-header .wrap--narrow{ text-align: left; }
.legal-back{
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13.5px; color: var(--text-2);
  margin-bottom: 22px;
  transition: color .2s var(--ease);
}
.legal-back:hover{ color: var(--accent); }
.legal-header h1{ font-size: clamp(28px, 4vw, 40px); margin-bottom: 10px; }
.legal-header .legal-updated{ font-size: 13px; color: var(--text-2); font-family: var(--font-mono); }

.legal-section{ padding: 20px 28px 100px; }
.legal-card{
  background: linear-gradient(180deg, var(--glass-strong), var(--glass));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px clamp(24px, 5vw, 56px);
}
.legal-card h2{
  font-size: 21px; margin: 40px 0 14px;
  padding-top: 24px; border-top: 1px solid var(--border);
}
.legal-card h2:first-child{ margin-top: 0; padding-top: 0; border-top: none; }
.legal-card p{ color: var(--text-1); font-size: 15px; line-height: 1.75; margin-bottom: 14px; }
.legal-card ul{ margin: 0 0 14px; padding-left: 0; display: flex; flex-direction: column; gap: 10px; }
.legal-card li{
  position: relative; padding-left: 22px;
  color: var(--text-1); font-size: 15px; line-height: 1.7;
}
.legal-card li::before{
  content: ''; position: absolute; left: 0; top: 8px;
  width: 7px; height: 7px; border-radius: 2px; transform: rotate(45deg);
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
}
.legal-card a{ color: var(--accent); text-decoration: underline; text-decoration-color: rgba(var(--accent-rgb),.4); }
.legal-card strong{ color: var(--text-0); }
.legal-card .legal-placeholder{
  color: #fbbf24; font-style: italic;
}
.legal-contact-grid{
  display: grid; grid-template-columns: 1fr; gap: 16px;
  margin: 24px 0 8px;
}
@media (min-width: 640px){ .legal-contact-grid{ grid-template-columns: 1fr 1fr; } }
.legal-contact-card{
  padding: 22px; border-radius: var(--radius-md);
  background: var(--glass); border: 1px solid var(--border);
}
.legal-contact-card .label{ font-family: var(--font-mono); font-size: 11.5px; text-transform: uppercase; letter-spacing: .06em; color: var(--accent); margin-bottom: 8px; display: block; }
.legal-contact-card .value{ font-size: 16px; font-weight: 600; color: var(--text-0); }
.legal-contact-card .value a{ text-decoration: none; }

/* ---------------------------------- misc ---------------------------------- */
:focus-visible{ outline: 2px solid var(--accent); outline-offset: 3px; }

/* ==========================================================================
   ON-SITE CHAT
   ========================================================================== */
.chat-overlay{
  position: fixed; inset: 0; z-index: 90;
  background: rgba(2,4,10,.55);
  backdrop-filter: blur(2px);
  opacity: 0; transition: opacity .3s var(--ease);
}
.chat-overlay.is-open{ opacity: 1; }

.chat-panel{
  position: fixed; z-index: 91;
  inset: 0;
  display: flex; flex-direction: column;
  background: linear-gradient(180deg, var(--bg-alt), var(--bg));
  transition: opacity .4s var(--ease), background var(--theme-speed) var(--ease);
  opacity: 0;
  pointer-events: none;
}
.chat-panel.is-open{ opacity: 1; pointer-events: auto; }
.chat-panel[hidden]{ display: none; }

.chat-panel__head{
  display: flex; align-items: center; justify-content: space-between; gap: 10px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}
.chat-panel__title{ display: flex; align-items: center; gap: 12px; min-width: 0; }
.chat-panel__avatar{
  width: 38px; height: 38px; border-radius: 12px; flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  transition: background var(--theme-speed) var(--ease);
}
.chat-panel__name{ font-family: var(--font-display); font-weight: 600; font-size: 15px; margin: 0; }
.chat-panel__status{ margin: 2px 0 0; font-size: 12px; color: var(--text-2); font-family: var(--font-mono); }

.chat-header-badge{
  margin: 0 auto;
  padding: 8px 20px;
  border-radius: 999px;
  font-family: var(--font-display); font-weight: 600; font-size: 14px;
  color: #04070d;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 4px 20px -6px rgba(var(--accent-rgb),.55);
  transition: background var(--theme-speed) var(--ease);
  white-space: nowrap;
}
@media (max-width: 640px){
  .chat-header-badge{ display: none; }
}

.chat-panel__close{ display: flex; align-items: center; justify-content: center; width: 36px; height: 36px; border-radius: 50%; color: var(--text-1); transition: background .2s var(--ease); flex-shrink: 0; }
.chat-panel__close:hover{ background: var(--glass); }

/* ---- fullscreen split: chat on the left, AI-selector wheel rail on the right ---- */
.chat-fullscreen-body{
  flex: 1; min-height: 0;
  display: flex; flex-direction: row-reverse;
  position: relative;
}
.chat-bg-canvas{
  position: absolute; inset: 0; z-index: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  opacity: .55;
}
.chat-main{
  flex: 1; min-width: 0; min-height: 0;
  display: flex; flex-direction: column;
  overflow: hidden;
  position: relative; z-index: 1;
}
.chat-content-inner{
  flex: 1; min-height: 0;
  display: flex; flex-direction: column;
  max-width: 760px; width: 100%;
  margin: 0 auto;
  position: relative;
  background: rgba(3,4,8,.28);
  backdrop-filter: blur(16px) saturate(1.15);
  -webkit-backdrop-filter: blur(16px) saturate(1.15);
}

.chat-wheel-rail{
  position: relative; z-index: 1;
  width: 168px; flex-shrink: 0;
  display: flex; flex-direction: column; align-items: center;
  padding: 28px 12px;
  border-right: 1px solid var(--border);
  background: var(--glass);
}
.chat-wheel-current{
  font-family: var(--font-display); font-weight: 600; font-size: 15px;
  text-align: center; margin: 0 0 18px;
  color: var(--text-0);
  min-height: 40px;
}
.chat-wheel-track{ position: relative; flex: 1; width: 100%; }
.chat-wheel{
  position: absolute; inset: 0;
  overflow-y: auto;
  scroll-snap-type: y mandatory;
  scrollbar-width: none;
  display: flex; flex-direction: column; align-items: center;
}
.chat-wheel::-webkit-scrollbar{ display: none; }
.chat-wheel__spacer{ height: calc(50% - 28px); flex-shrink: 0; width: 100%; }
.chat-wheel__item{
  scroll-snap-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  height: 56px; flex-shrink: 0; width: 100%;
  font-family: var(--font-mono); font-size: 12px; font-weight: 600;
  color: var(--text-2);
  opacity: .45; transform: scale(.85);
  transition: opacity .25s var(--ease), transform .25s var(--ease), color .25s var(--ease);
}
.chat-wheel__item .dot{ width: 9px; height: 9px; }
.chat-wheel__item.is-active{ opacity: 1; transform: scale(1.1); color: var(--text-0); }
.chat-wheel__indicator{
  position: absolute; left: 4px; right: 4px; top: 50%;
  height: 56px; transform: translateY(-50%);
  border-radius: 14px;
  background: var(--glass-strong);
  border: 1px solid rgba(var(--accent-rgb),.35);
  pointer-events: none;
  transition: border-color var(--theme-speed) var(--ease);
}

/* ---- sub-model picker flyout: opens leftward from the wheel rail ---- */
.model-flyout{
  position: absolute;
  top: 50%; left: calc(100% + 12px);
  transform: translateY(-50%);
  width: 220px;
  padding: 14px;
  border-radius: 16px;
  background: linear-gradient(180deg, var(--glass-strong), var(--glass));
  border: 1px solid var(--border);
  box-shadow: 20px 10px 50px -20px rgba(0,0,0,.5);
  animation: chatIn .25s var(--ease);
  z-index: 5;
}
.model-flyout__title{
  margin: 0 0 10px; padding: 0 4px;
  font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: .06em;
  color: var(--text-2);
}
.model-flyout__list{ display: flex; flex-direction: column; gap: 4px; }
.model-flyout__item{
  display: flex; align-items: center; justify-content: space-between; gap: 8px;
  width: 100%; padding: 10px 12px;
  border-radius: 10px;
  font-size: 13.5px; color: var(--text-1);
  text-align: left;
  transition: background .2s var(--ease), color .2s var(--ease);
}
.model-flyout__item:hover{ background: var(--glass); color: var(--text-0); }
.model-flyout__item.is-active{
  background: linear-gradient(135deg, rgba(var(--accent-rgb),.18), rgba(var(--accent2-rgb),.18));
  color: var(--text-0); font-weight: 600;
  border: 1px solid rgba(var(--accent-rgb),.35);
}
.model-flyout__check{ opacity: 0; color: var(--accent); }
.model-flyout__item.is-active .model-flyout__check{ opacity: 1; }

@media (max-width: 760px){
  .model-flyout{
    top: auto; bottom: calc(100% + 12px); left: auto; right: 50%;
    transform: translateX(50%);
  }
}

@media (max-width: 760px){
  .chat-fullscreen-body{ flex-direction: column; }
  .chat-wheel-rail{
    width: 100%; flex-direction: row; padding: 10px 16px;
    border-right: none; border-bottom: 1px solid var(--border);
  }
  .chat-wheel-current{ margin: 0 14px 0 0; min-height: auto; white-space: nowrap; }
  .chat-wheel-track{ height: 56px; flex: 1; }
  .chat-wheel{
    flex-direction: row; overflow-x: auto; overflow-y: hidden;
    scroll-snap-type: x mandatory;
  }
  .chat-wheel__spacer{ width: calc(50% - 34px); height: 100%; }
  .chat-wheel__item{ flex-direction: row; width: 68px; height: 100%; }
  .chat-wheel__indicator{ top: 4px; bottom: 4px; left: 50%; right: auto; width: 68px; height: auto; transform: translateX(-50%); }
}

.chat-panel__body{
  flex: 1; overflow-y: auto;
  padding: 18px 0;
  display: flex; flex-direction: column; gap: 12px;
  scrollbar-width: thin;
  scrollbar-color: rgba(var(--accent-rgb),.4) transparent;
}
.chat-panel__body::-webkit-scrollbar{ width: 6px; }
.chat-panel__body::-webkit-scrollbar-track{ background: transparent; }
.chat-panel__body::-webkit-scrollbar-thumb{
  background: rgba(var(--accent-rgb),.35);
  border-radius: 999px;
}
.chat-panel__body::-webkit-scrollbar-thumb:hover{ background: rgba(var(--accent-rgb),.6); }
.chat-msg{
  max-width: 86%;
  padding: 11px 14px;
  font-size: 14px; line-height: 1.55;
  border-radius: 14px;
  animation: chatIn .3s var(--ease);
}
@keyframes chatIn{ from{ opacity: 0; transform: translateY(8px); } to{ opacity: 1; transform: translateY(0); } }
.chat-msg p{ margin: 0; white-space: pre-wrap; word-wrap: break-word; }
.chat-msg--bot{
  align-self: flex-start;
  background: var(--glass-strong);
  border: 1px solid var(--border);
  border-bottom-left-radius: 4px;
  color: var(--text-0);
}
.chat-msg--user{
  align-self: flex-end;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04070d;
  border-bottom-right-radius: 4px;
  font-weight: 500;
}
.chat-msg--typing{ display: flex; flex-direction: column; padding: 14px 16px; min-width: 140px; }
.crab-crawl{ position: relative; height: 26px; width: 100%; overflow: hidden; }
.crab-crawl__emoji{
  position: absolute; left: 0; top: 0;
  font-size: 20px; line-height: 1;
  display: inline-block;
  animation: crabWalk 2.6s ease-in-out infinite;
}
@keyframes crabWalk{
  0%   { transform: translateX(0) scaleX(1); }
  45%  { transform: translateX(64px) scaleX(1); }
  50%  { transform: translateX(64px) scaleX(-1); }
  95%  { transform: translateX(0) scaleX(-1); }
  100% { transform: translateX(0) scaleX(1); }
}
.crab-joke{ margin: 6px 0 0; font-size: 12.5px; color: var(--text-2); font-style: italic; animation: chatIn .3s var(--ease); }
@keyframes typingDot{ 0%,60%,100%{ opacity: .3; transform: translateY(0); } 30%{ opacity: 1; transform: translateY(-3px); } }

.chat-panel__hint{
  margin: 0; padding: 0 18px 12px;
  font-size: 11.5px; color: var(--text-2); text-align: center;
}

/* ---- attachment preview strip ---- */
.chat-attachment{
  display: flex; align-items: center; gap: 10px;
  margin: 0 18px 10px; padding: 8px 10px;
  border-radius: 12px;
  background: var(--glass); border: 1px solid var(--border);
}
.chat-attachment[hidden]{ display: none; }
.chat-attachment img{ width: 34px; height: 34px; border-radius: 8px; object-fit: cover; flex-shrink: 0; }
.chat-attachment__name{ flex: 1; min-width: 0; font-size: 12.5px; color: var(--text-1); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.chat-attachment__remove{ display: flex; align-items: center; justify-content: center; width: 22px; height: 22px; border-radius: 50%; color: var(--text-2); flex-shrink: 0; }
.chat-attachment__remove:hover{ background: rgba(255,255,255,.08); color: var(--text-0); }

/* ---- voice recording indicator ---- */
.chat-recording{
  display: flex; align-items: center; gap: 10px;
  margin: 0 18px 10px; padding: 10px 14px;
  border-radius: 12px;
  background: rgba(239,68,68,.1); border: 1px solid rgba(239,68,68,.3);
  font-size: 13px; color: var(--text-0);
}
.chat-recording[hidden]{ display: none; }
.chat-recording__dot{ width: 8px; height: 8px; border-radius: 50%; background: #ef4444; animation: pulse 1.4s infinite; flex-shrink: 0; }
.chat-recording__stop, .chat-recording__cancel{
  margin-left: auto; padding: 5px 12px; border-radius: 999px; font-size: 12px; font-weight: 600;
}
.chat-recording__stop{ background: #ef4444; color: #fff; }
.chat-recording__cancel{ color: var(--text-2); }
.chat-recording__cancel:hover{ color: var(--text-0); }

.chat-panel__input{
  display: flex; gap: 8px; align-items: center;
  padding: 0 18px 16px;
}
.chat-panel__icon-btn{
  display: flex; align-items: center; justify-content: center;
  width: 38px; height: 38px; flex-shrink: 0;
  border-radius: 50%; color: var(--text-1);
  border: 1px solid var(--border); background: var(--glass);
  transition: color .2s var(--ease), border-color .2s var(--ease);
}
.chat-panel__icon-btn:hover{ color: var(--accent); border-color: rgba(var(--accent-rgb),.4); }
.chat-panel__icon-btn.is-active{ color: #04070d; background: linear-gradient(135deg, var(--accent), var(--accent-2)); border-color: transparent; }
.chat-panel__icon-btn:disabled{ opacity: .4; pointer-events: none; }
.chat-panel__input input{
  flex: 1; min-width: 0;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--glass);
  color: var(--text-0);
  font: inherit; font-size: 14px;
}
.chat-panel__input input:focus{ outline: none; border-color: rgba(var(--accent-rgb),.5); }
.chat-panel__send{
  width: 42px; height: 42px; flex-shrink: 0;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04070d;
  transition: transform .2s var(--ease);
}
.chat-panel__send:hover{ transform: scale(1.06); }
.chat-panel__input.is-busy .chat-panel__send{ opacity: .55; pointer-events: none; transform: none; }
.chat-panel__input input:disabled{ opacity: .6; }

/* ---- media inside chat bubbles ---- */
.chat-msg img.chat-media{ display: block; max-width: 100%; border-radius: 10px; margin-top: 6px; }
.chat-msg audio.chat-media, .chat-msg video.chat-media{ display: block; max-width: 100%; border-radius: 10px; margin-top: 6px; }
.chat-msg .chat-media-caption{ font-size: 12px; color: var(--text-2); margin-top: 6px; }
.chat-msg--pending{ opacity: .7; }
.chat-progress{
  height: 4px; border-radius: 999px; background: rgba(255,255,255,.1);
  overflow: hidden; margin-top: 8px;
}
.chat-progress__bar{
  height: 100%; width: 30%;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  animation: chatProgress 1.6s infinite ease-in-out;
}
@keyframes chatProgress{ 0%{ transform: translateX(-100%); } 100%{ transform: translateX(330%); } }

.chat-panel__telegram-cta{
  margin: 0 18px 18px; text-align: center;
  border-radius: 14px;
}

@media (max-width: 480px){
  .chat-panel{ width: 100%; }
}