/* ================================================
   STUDENTAI.FR — FUTURISTIC AI
   Deep space aesthetic, neural network visuals
   ================================================ */

/* -----------------------------------------------
   CSS Custom Properties
----------------------------------------------- */
:root {
  --bg:          #030014;
  --bg-1:        #060124;
  --bg-2:        #0a0230;
  --cyan:        #00f0ff;
  --cyan-dim:    rgba(0, 240, 255, 0.12);
  --cyan-glow:   rgba(0, 240, 255, 0.35);
  --cyan-mid:    rgba(0, 240, 255, 0.6);
  --violet:      #8b5cf6;
  --violet-dim:  rgba(139, 92, 246, 0.12);
  --violet-glow: rgba(139, 92, 246, 0.35);
  --green:       #00ff88;
  --green-dim:   rgba(0, 255, 136, 0.12);
  --green-glow:  rgba(0, 255, 136, 0.3);
  --white:       #ffffff;
  --slate:       #94a3b8;
  --slate-dim:   #475569;
  --border:      rgba(255, 255, 255, 0.06);
  --border-cyan: rgba(0, 240, 255, 0.2);
  --border-violet: rgba(139, 92, 246, 0.2);
  --border-green: rgba(0, 255, 136, 0.2);

  --font-sans: 'Space Grotesk', system-ui, sans-serif;
  --font-mono: 'Space Mono', ui-monospace, monospace;

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  16px;
  --radius-xl:  24px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* -----------------------------------------------
   Reset & Base
----------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

em {
  font-style: normal;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

img {
  display: block;
  max-width: 100%;
}

blockquote {
  font-style: normal;
}

/* -----------------------------------------------
   Typography utilities
----------------------------------------------- */
.mono {
  font-family: var(--font-mono);
  letter-spacing: 0.03em;
}

.text-cyan   { color: var(--cyan); }
.text-violet { color: var(--violet); }
.text-green  { color: var(--green); }

/* Holographic text — cyan gradient with shimmer */
.text-holo {
  background: linear-gradient(135deg, var(--cyan) 0%, #7ae9ff 40%, var(--cyan) 60%, #00c8d8 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: holo-shift 4s ease-in-out infinite;
}

.text-holo-violet {
  background: linear-gradient(135deg, var(--violet) 0%, #c4b5fd 40%, var(--violet) 60%, #6d28d9 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: holo-shift 4s ease-in-out infinite;
}

.text-holo-green {
  background: linear-gradient(135deg, var(--green) 0%, #6effbb 40%, var(--green) 60%, #00cc6a 100%);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: holo-shift 4s ease-in-out infinite;
}

@keyframes holo-shift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* -----------------------------------------------
   Layout
----------------------------------------------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* -----------------------------------------------
   Neural Canvas Background
----------------------------------------------- */
#neural-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0.45;
  pointer-events: none;
}

/* -----------------------------------------------
   Grid Overlay
----------------------------------------------- */
.grid-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 240, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 240, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 20%, transparent 100%);
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, black 20%, transparent 100%);
}

/* -----------------------------------------------
   System Indicators
----------------------------------------------- */
.sys-indicator {
  position: fixed;
  z-index: 100;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--slate);
  opacity: 0.7;
  pointer-events: none;
}

.sys-indicator--tl { top: 16px; left: 20px; }
.sys-indicator--tr { top: 16px; right: 20px; }

.sys-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan);
  animation: sys-blink 2s ease-in-out infinite;
}

.sys-dot--violet {
  background: var(--violet);
  box-shadow: 0 0 6px var(--violet);
}

@keyframes sys-blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

/* -----------------------------------------------
   Pulse dot (reusable)
----------------------------------------------- */
.pulse-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 var(--cyan-glow);
  animation: pulse-ring 2s ease-out infinite;
  flex-shrink: 0;
}

.pulse-dot--violet {
  background: var(--violet);
  box-shadow: 0 0 0 0 var(--violet-glow);
  animation: pulse-ring-violet 2s ease-out infinite;
}

.pulse-dot--sm {
  width: 6px;
  height: 6px;
}

@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 var(--cyan-glow); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

@keyframes pulse-ring-violet {
  0% { box-shadow: 0 0 0 0 var(--violet-glow); }
  70% { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* -----------------------------------------------
   Reveal animation
----------------------------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal--right {
  transform: translateX(40px);
}

.reveal--right.revealed {
  transform: translateX(0);
}

/* -----------------------------------------------
   Buttons
----------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 500;
  border: none;
  cursor: pointer;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: var(--transition);
  white-space: nowrap;
}

.btn--sm {
  font-size: 12px;
  padding: 8px 16px;
  letter-spacing: 0.05em;
}

.btn--lg {
  font-size: 15px;
  padding: 14px 28px;
}

/* Primary — cyan glow */
.btn--primary {
  background: transparent;
  color: var(--bg);
  background: linear-gradient(135deg, var(--cyan), #00c8d8);
  box-shadow: 0 0 20px var(--cyan-glow), 0 0 40px rgba(0,240,255,0.15);
  color: #000;
  font-weight: 600;
}

.btn--primary:hover {
  box-shadow: 0 0 30px var(--cyan-glow), 0 0 60px rgba(0,240,255,0.25);
  transform: translateY(-2px);
}

/* Outline */
.btn--outline {
  background: transparent;
  color: var(--cyan);
  border: 1px solid var(--border-cyan);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: 11px;
  font-weight: 600;
}

.btn--outline:hover {
  background: var(--cyan-dim);
  border-color: var(--cyan);
  box-shadow: 0 0 16px var(--cyan-glow);
}

/* Ghost */
.btn--ghost {
  background: transparent;
  color: var(--slate);
  border: 1px solid var(--border);
}

.btn--ghost:hover {
  color: var(--white);
  border-color: rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.04);
}

/* -----------------------------------------------
   Navigation
----------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: 0;
  transition: background var(--transition), border-color var(--transition);
}

.nav.scrolled {
  background: rgba(3, 0, 20, 0.9);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(16px);
}

.nav__inner {
  display: flex;
  align-items: center;
  height: 70px;
  gap: 32px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.nav__logo-mark {
  width: 28px;
  height: 28px;
  border: 1.5px solid var(--cyan);
  border-radius: 4px;
  position: relative;
  box-shadow: 0 0 10px var(--cyan-glow);
}

.nav__logo-mark::before {
  content: '';
  position: absolute;
  inset: 4px;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  border-radius: 2px;
  opacity: 0.6;
}

.nav__logo-text {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--white);
}

.nav__logo-fr {
  color: var(--slate);
  font-size: 14px;
  font-weight: 400;
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-left: auto;
}

.nav__link {
  font-size: 13px;
  font-weight: 500;
  color: var(--slate);
  padding: 6px 12px;
  border-radius: 4px;
  transition: var(--transition);
  letter-spacing: 0.02em;
}

.nav__link:hover {
  color: var(--white);
  background: rgba(255,255,255,0.05);
}

.nav__cta {
  margin-left: 8px;
}

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  margin-left: auto;
}

.nav__hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* -----------------------------------------------
   Mobile Menu
----------------------------------------------- */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 280px;
  height: 100vh;
  z-index: 300;
  background: rgba(6, 1, 36, 0.97);
  border-left: 1px solid var(--border-cyan);
  backdrop-filter: blur(20px);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.mobile-menu.open {
  right: 0;
}

.mobile-menu__close {
  align-self: flex-end;
  background: none;
  border: none;
  color: var(--slate);
  cursor: pointer;
  padding: 8px;
  margin-bottom: 16px;
}

.mobile-menu__links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-menu__link {
  display: block;
  padding: 12px 16px;
  font-size: 15px;
  color: var(--slate);
  border-radius: var(--radius-sm);
  transition: var(--transition);
  border: 1px solid transparent;
}

.mobile-menu__link:hover {
  color: var(--white);
  background: var(--cyan-dim);
  border-color: var(--border-cyan);
}

.mobile-menu__cta {
  margin-top: auto;
  text-align: center;
  justify-content: center;
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  z-index: 250;
  background: rgba(0,0,0,0.7);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  backdrop-filter: blur(4px);
}

.mobile-overlay.open {
  opacity: 1;
  pointer-events: all;
}

/* -----------------------------------------------
   HERO
----------------------------------------------- */
.hero {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero__bg-glow {
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 600px;
  background: radial-gradient(ellipse, rgba(0,240,255,0.06) 0%, rgba(139,92,246,0.04) 40%, transparent 70%);
  pointer-events: none;
}

.hero__particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
  width: 100%;
}

/* Hero badge */
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 10px;
  letter-spacing: 0.12em;
  color: var(--cyan);
  border: 1px solid var(--border-cyan);
  border-radius: 100px;
  padding: 6px 14px;
  background: var(--cyan-dim);
  margin-bottom: 28px;
}

.hero__badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green-glow);
  animation: sys-blink 1.5s ease-in-out infinite;
}

/* Hero title */
.hero__title {
  font-size: clamp(36px, 5vw, 60px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero__title-line {
  display: block;
}

/* Hero sub */
.hero__sub {
  font-size: 17px;
  color: var(--slate);
  line-height: 1.7;
  max-width: 480px;
  margin-bottom: 40px;
}

/* Hero actions */
.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

/* -----------------------------------------------
   AI Interface Mockup
----------------------------------------------- */
.hero__mockup {
  position: relative;
  display: flex;
  justify-content: center;
}

.ai-interface {
  width: 100%;
  max-width: 420px;
  background: rgba(6, 1, 36, 0.8);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 0 40px var(--cyan-glow), 0 0 80px rgba(139,92,246,0.12), inset 0 0 30px rgba(0,240,255,0.02);
  backdrop-filter: blur(20px);
  position: relative;
}

.ai-interface__header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,240,255,0.03);
}

.ai-interface__dots {
  display: flex;
  gap: 5px;
}

.ai-interface__dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.ai-interface__dots span:nth-child(1) { background: #ff5f57; opacity: 0.7; }
.ai-interface__dots span:nth-child(2) { background: #ffbd2e; opacity: 0.7; }
.ai-interface__dots span:nth-child(3) { background: #28ca41; opacity: 0.7; }

.ai-interface__title {
  font-size: 10px;
  color: var(--slate);
  letter-spacing: 0.08em;
  flex: 1;
  text-align: center;
}

.ai-interface__status {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--green);
}

.ai-interface__body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* Processing bar */
.ai-proc {
  display: flex;
  align-items: center;
  gap: 10px;
}

.ai-proc__label {
  font-size: 8px;
  color: var(--slate);
  letter-spacing: 0.1em;
  white-space: nowrap;
}

.ai-proc__bar {
  flex: 1;
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  overflow: hidden;
}

.ai-proc__fill {
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  border-radius: 2px;
  width: 0%;
  animation: proc-fill 3s ease-in-out 1s forwards, proc-pulse 2s ease-in-out 4s infinite;
  box-shadow: 0 0 8px var(--cyan-glow);
}

@keyframes proc-fill {
  to { width: 78%; }
}

@keyframes proc-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.6; }
}

.ai-proc__value {
  font-size: 9px;
  color: var(--cyan);
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* Chat */
.ai-chat {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.ai-chat__msg {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.ai-chat__tag {
  font-size: 8px;
  letter-spacing: 0.12em;
  color: var(--slate-dim);
}

.ai-chat__msg--user .ai-chat__tag { color: var(--cyan); opacity: 0.7; }
.ai-chat__msg--ai .ai-chat__tag { color: var(--violet); opacity: 0.8; }

.ai-chat__msg p {
  font-size: 12px;
  line-height: 1.5;
  color: var(--white);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
}

.ai-chat__msg--user p {
  background: rgba(0,240,255,0.07);
  border: 1px solid rgba(0,240,255,0.12);
  border-radius: 8px 8px 2px 8px;
  margin-left: auto;
  max-width: 90%;
  color: rgba(255,255,255,0.9);
}

.ai-chat__msg--ai p {
  background: rgba(139,92,246,0.08);
  border: 1px solid rgba(139,92,246,0.15);
  border-radius: 2px 8px 8px 8px;
  color: rgba(255,255,255,0.85);
}

.ai-chat__typing {
  display: flex;
  gap: 4px;
  padding: 8px 12px;
  background: rgba(139,92,246,0.08);
  border: 1px solid rgba(139,92,246,0.15);
  border-radius: 2px 8px 8px 8px;
  width: fit-content;
}

.ai-chat__typing span {
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--violet);
  animation: typing-bounce 1.2s ease-in-out infinite;
}

.ai-chat__typing span:nth-child(2) { animation-delay: 0.2s; }
.ai-chat__typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing-bounce {
  0%, 80%, 100% { opacity: 0.3; transform: translateY(0); }
  40% { opacity: 1; transform: translateY(-4px); }
}

/* Neural activity bars */
.ai-neural-viz__label {
  font-size: 8px;
  color: var(--slate);
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}

.ai-neural-viz__bars {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 32px;
}

.bar-item {
  flex: 1;
  height: var(--h, 50%);
  background: linear-gradient(180deg, var(--cyan) 0%, rgba(0,240,255,0.3) 100%);
  border-radius: 2px 2px 0 0;
  animation: bar-pulse 2s ease-in-out infinite;
  animation-delay: calc(var(--i, 0) * 0.15s);
}

.bar-item:nth-child(odd) { animation-delay: 0.1s; }
.bar-item:nth-child(even) { animation-delay: 0.3s; }
.bar-item:nth-child(3n) { animation-delay: 0.5s; }

@keyframes bar-pulse {
  0%, 100% { opacity: 0.7; }
  50% { opacity: 1; }
}

/* Metrics */
.ai-metrics {
  display: flex;
  gap: 12px;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.ai-metric {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
  text-align: center;
}

.ai-metric__val {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.ai-metric__unit {
  font-size: 10px;
  font-weight: 400;
  opacity: 0.7;
}

.ai-metric__label {
  font-size: 9px;
  color: var(--slate);
  letter-spacing: 0.05em;
}

/* Scan line */
.ai-interface__scan {
  position: absolute;
  top: -100%;
  left: 0;
  right: 0;
  height: 100%;
  background: linear-gradient(
    180deg,
    transparent 0%,
    rgba(0, 240, 255, 0.015) 50%,
    transparent 100%
  );
  animation: scan-pass 6s ease-in-out infinite;
  pointer-events: none;
}

@keyframes scan-pass {
  0% { top: -100%; }
  100% { top: 100%; }
}

/* Floating chips */
.float-chip {
  position: absolute;
  background: rgba(6, 1, 36, 0.9);
  border: 1px solid var(--border-cyan);
  border-radius: 100px;
  padding: 6px 12px;
  font-size: 10px;
  letter-spacing: 0.08em;
  color: var(--slate);
  display: flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
  backdrop-filter: blur(10px);
  box-shadow: 0 0 16px rgba(0,240,255,0.1);
}

.float-chip--1 {
  top: 10%;
  right: -20%;
  animation: float-1 4s ease-in-out infinite;
}

.float-chip--2 {
  bottom: 15%;
  right: -18%;
  animation: float-2 5s ease-in-out infinite;
}

@keyframes float-1 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-8px); }
}

@keyframes float-2 {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(6px); }
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
}

.scroll-indicator__line {
  width: 1px;
  height: 40px;
  background: linear-gradient(180deg, var(--cyan) 0%, transparent 100%);
  animation: scroll-line 2s ease-in-out infinite;
}

@keyframes scroll-line {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  51% { transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

.scroll-indicator__label {
  font-size: 8px;
  letter-spacing: 0.2em;
  color: var(--slate-dim);
}

/* -----------------------------------------------
   STATS BAR
----------------------------------------------- */
.stats-bar {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: rgba(0, 240, 255, 0.02);
  padding: 40px 0;
}

.stats-bar__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.stats-bar__div {
  width: 1px;
  height: 60px;
  background: var(--border);
  flex-shrink: 0;
}

.stat-item {
  flex: 1;
  min-width: 200px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 0 32px;
  text-align: center;
}

.stat-item__icon {
  margin-bottom: 4px;
}

.stat-item__data {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.stat-item__val {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
}

.stat-item__label {
  font-size: 12px;
  color: var(--slate);
  letter-spacing: 0.03em;
}

.stat-item__tag {
  font-size: 8px;
  letter-spacing: 0.15em;
  color: var(--slate-dim);
  margin-top: 4px;
}

/* -----------------------------------------------
   Section headers
----------------------------------------------- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--slate);
  margin-bottom: 16px;
}

.section-tag__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
  animation: sys-blink 2s ease-in-out infinite;
}

.section-tag__dot--violet {
  background: var(--violet);
  box-shadow: 0 0 8px var(--violet-glow);
}

.section-tag__dot--green {
  background: var(--green);
  box-shadow: 0 0 8px var(--green-glow);
}

.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 16px;
  color: var(--slate);
  line-height: 1.7;
}

/* -----------------------------------------------
   FEATURES
----------------------------------------------- */
.features {
  position: relative;
  z-index: 2;
  padding: 100px 0;
}

.features__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.feature-card {
  position: relative;
  background: rgba(6, 1, 36, 0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  backdrop-filter: blur(10px);
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-card[data-glow="cyan"]:hover {
  border-color: var(--border-cyan);
  box-shadow: 0 0 30px rgba(0,240,255,0.08), 0 20px 60px rgba(0,0,0,0.4);
}

.feature-card[data-glow="violet"]:hover {
  border-color: var(--border-violet);
  box-shadow: 0 0 30px rgba(139,92,246,0.08), 0 20px 60px rgba(0,0,0,0.4);
}

.feature-card[data-glow="green"]:hover {
  border-color: var(--border-green);
  box-shadow: 0 0 30px rgba(0,255,136,0.08), 0 20px 60px rgba(0,0,0,0.4);
}

.feature-card__hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.feature-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-card__icon--cyan {
  background: var(--cyan-dim);
  border: 1px solid var(--border-cyan);
}

.feature-card__icon--violet {
  background: var(--violet-dim);
  border: 1px solid var(--border-violet);
}

.feature-card__icon--green {
  background: var(--green-dim);
  border: 1px solid var(--border-green);
}

.feature-card__num {
  font-size: 9px;
  letter-spacing: 0.15em;
  color: var(--slate-dim);
}

.feature-card__title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
  color: var(--white);
}

.feature-card__desc {
  font-size: 14px;
  color: var(--slate);
  line-height: 1.65;
  margin-bottom: 20px;
}

.feature-card__stats {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
}

.feature-card__stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
  font-size: 11px;
  color: var(--slate);
}

.feature-card__stat .mono {
  font-size: 16px;
  font-weight: 700;
}

/* Animated border line at bottom */
.feature-card__border {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card__border--violet {
  background: linear-gradient(90deg, transparent, var(--violet), transparent);
}

.feature-card__border--green {
  background: linear-gradient(90deg, transparent, var(--green), transparent);
}

.feature-card:hover .feature-card__border {
  opacity: 1;
}

/* -----------------------------------------------
   HOW IT WORKS
----------------------------------------------- */
.how-it-works {
  position: relative;
  z-index: 2;
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(139,92,246,0.02) 50%, transparent);
}

.pipeline {
  display: flex;
  align-items: flex-start;
  gap: 0;
  justify-content: center;
  margin-bottom: 60px;
}

.pipeline__step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  flex: 1;
  max-width: 300px;
}

.pipeline__step-num {
  font-size: 10px;
  letter-spacing: 0.15em;
  color: var(--slate-dim);
}

.pipeline__card {
  width: 100%;
  padding: 24px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(6,1,36,0.7);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

.pipeline__card--cyan {
  border-color: var(--border-cyan);
  box-shadow: 0 0 20px rgba(0,240,255,0.05), inset 0 0 20px rgba(0,240,255,0.02);
}

.pipeline__card--violet {
  border-color: var(--border-violet);
  box-shadow: 0 0 20px rgba(139,92,246,0.05), inset 0 0 20px rgba(139,92,246,0.02);
}

.pipeline__card--green {
  border-color: var(--border-green);
  box-shadow: 0 0 20px rgba(0,255,136,0.05), inset 0 0 20px rgba(0,255,136,0.02);
}

.pipeline__icon {
  margin-bottom: 14px;
}

.pipeline__title {
  font-size: 16px;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  color: var(--white);
}

.pipeline__desc {
  font-size: 13px;
  color: var(--slate);
  line-height: 1.6;
  margin-bottom: 14px;
}

.pipeline__tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.pipeline__tag {
  font-size: 9px;
  letter-spacing: 0.1em;
  padding: 3px 8px;
  border-radius: 100px;
  background: rgba(0,240,255,0.08);
  border: 1px solid var(--border-cyan);
  color: var(--cyan);
}

.pipeline__tag--violet {
  background: var(--violet-dim);
  border-color: var(--border-violet);
  color: var(--violet);
}

.pipeline__tag--green {
  background: var(--green-dim);
  border-color: var(--border-green);
  color: var(--green);
}

.pipeline__arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 80px;
  flex-shrink: 0;
  width: 60px;
}

.pipeline__arrow-line {
  width: 1px;
  height: 40px;
  background: rgba(0,240,255,0.2);
  position: relative;
  overflow: hidden;
  margin-bottom: 6px;
}

.pipeline__arrow-flow {
  position: absolute;
  top: -100%;
  width: 100%;
  height: 50%;
  background: linear-gradient(180deg, transparent, var(--cyan), transparent);
  animation: flow-down 2s linear infinite;
}

.pipeline__arrow-flow--violet {
  background: linear-gradient(180deg, transparent, var(--violet), transparent);
}

@keyframes flow-down {
  0% { top: -100%; }
  100% { top: 200%; }
}

.pipeline__arrow svg {
  opacity: 0.5;
}

/* Tech band */
.tech-band {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 32px;
  flex-wrap: wrap;
  padding: 24px 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255,255,255,0.02);
}

.tech-band__item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  text-align: center;
}

.tech-band__val {
  font-size: 14px;
  font-weight: 700;
  color: var(--white);
  letter-spacing: 0.05em;
}

.tech-band__label {
  font-size: 10px;
  color: var(--slate-dim);
  letter-spacing: 0.05em;
}

.tech-band__sep {
  color: var(--border);
  font-size: 18px;
  line-height: 1;
}

/* -----------------------------------------------
   CAPABILITIES
----------------------------------------------- */
.capabilities {
  position: relative;
  z-index: 2;
  padding: 100px 0;
}

.caps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.cap-item {
  background: rgba(6,1,36,0.6);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 22px;
  transition: border-color var(--transition), transform var(--transition);
  backdrop-filter: blur(8px);
}

.cap-item:hover {
  border-color: rgba(255,255,255,0.12);
  transform: translateY(-2px);
}

.cap-item__hd {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
}

.cap-item__id {
  font-size: 8px;
  letter-spacing: 0.15em;
  color: var(--slate-dim);
  margin-left: auto;
}

.cap-item__title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-bottom: 6px;
  color: var(--white);
}

.cap-item__desc {
  font-size: 12px;
  color: var(--slate);
  line-height: 1.6;
  margin-bottom: 16px;
}

.cap-item__level {
  display: flex;
  align-items: center;
  gap: 10px;
}

.cap-item__level-bar {
  flex: 1;
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  position: relative;
  overflow: hidden;
}

.cap-item__level-bar::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: var(--w, 0%);
  background: linear-gradient(90deg, var(--cyan), rgba(0,240,255,0.6));
  border-radius: 2px;
  box-shadow: 0 0 6px var(--cyan-glow);
  transition: width 1.2s ease 0.3s;
}

.cap-item.revealed .cap-item__level-bar::after {
  width: var(--w, 0%);
}

.cap-item:not(.revealed) .cap-item__level-bar::after {
  width: 0% !important;
}

.cap-item__level-bar--violet::after {
  background: linear-gradient(90deg, var(--violet), rgba(139,92,246,0.6));
  box-shadow: 0 0 6px var(--violet-glow);
}

.cap-item__level-bar--green::after {
  background: linear-gradient(90deg, var(--green), rgba(0,255,136,0.6));
  box-shadow: 0 0 6px var(--green-glow);
}

.cap-item__pct {
  font-size: 11px;
  color: var(--slate);
  white-space: nowrap;
  min-width: 32px;
  text-align: right;
}

/* -----------------------------------------------
   TESTIMONIALS
----------------------------------------------- */
.testimonials {
  position: relative;
  z-index: 2;
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(0,240,255,0.01) 50%, transparent);
}

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

.testi-card {
  background: rgba(6,1,36,0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  backdrop-filter: blur(10px);
}

.testi-card:hover {
  border-color: var(--border-cyan);
  transform: translateY(-4px);
  box-shadow: 0 0 24px rgba(0,240,255,0.06);
}

.testi-card__hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.testi-card__author {
  display: flex;
  align-items: center;
  gap: 10px;
}

.testi-card__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  flex-shrink: 0;
}

.testi-card__avatar--cyan {
  background: var(--cyan-dim);
  border: 1px solid var(--border-cyan);
  color: var(--cyan);
}

.testi-card__avatar--violet {
  background: var(--violet-dim);
  border: 1px solid var(--border-violet);
  color: var(--violet);
}

.testi-card__info {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.testi-card__name {
  font-size: 14px;
  font-weight: 600;
  color: var(--white);
}

.testi-card__meta {
  font-size: 9px;
  letter-spacing: 0.08em;
  color: var(--slate-dim);
}

.testi-card__badge {
  display: flex;
  align-items: center;
  gap: 4px;
  font-size: 8px;
  letter-spacing: 0.12em;
  color: var(--green);
  background: var(--green-dim);
  border: 1px solid var(--border-green);
  border-radius: 100px;
  padding: 3px 8px;
}

.testi-card__text {
  font-size: 14px;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  flex: 1;
}

.testi-card__result {
  display: flex;
  align-items: center;
  gap: 8px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 12px;
  color: var(--slate);
}

.testi-card__result .mono {
  font-size: 14px;
  font-weight: 700;
}

/* -----------------------------------------------
   CTA SECTION
----------------------------------------------- */
.cta-section {
  position: relative;
  z-index: 2;
  padding: 100px 0 120px;
  overflow: hidden;
}

.cta-section__glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 600px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(0,240,255,0.08) 0%, rgba(139,92,246,0.06) 40%, transparent 70%);
  pointer-events: none;
}

.cta-box {
  position: relative;
  max-width: 680px;
  margin: 0 auto;
  text-align: center;
  background: rgba(6,1,36,0.7);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-xl);
  padding: 60px 48px;
  backdrop-filter: blur(20px);
  box-shadow: 0 0 60px rgba(0,240,255,0.06), 0 0 120px rgba(139,92,246,0.04);
  overflow: hidden;
}

.cta-box__tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--green);
  border: 1px solid var(--border-green);
  border-radius: 100px;
  padding: 5px 14px;
  background: var(--green-dim);
  margin-bottom: 28px;
}

.cta-box__title {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 20px;
}

.cta-box__sub {
  font-size: 16px;
  color: var(--slate);
  line-height: 1.7;
  margin-bottom: 40px;
}

.cta-box__form {
  display: flex;
  gap: 12px;
  max-width: 480px;
  margin: 0 auto 24px;
}

.cta-input {
  flex: 1;
  padding: 14px 18px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 15px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.cta-input::placeholder {
  color: var(--slate-dim);
}

.cta-input:focus {
  border-color: var(--border-cyan);
  box-shadow: 0 0 0 3px rgba(0,240,255,0.1);
}

.cta-box__guarantees {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 32px;
}

.cta-guarantee {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--slate);
}

.cta-box__sys {
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--slate-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

.cta-box__sys-sep {
  color: var(--slate-dim);
}

/* Corner decorations */
.cta-box__border {
  position: absolute;
  inset: 0;
  pointer-events: none;
  border-radius: var(--radius-xl);
}

.cta-box__border::before,
.cta-box__border::after {
  content: '';
  position: absolute;
  width: 40px;
  height: 40px;
  border-color: var(--cyan);
  border-style: solid;
  opacity: 0.4;
}

.cta-box__border::before {
  top: 16px;
  left: 16px;
  border-width: 1px 0 0 1px;
}

.cta-box__border::after {
  bottom: 16px;
  right: 16px;
  border-width: 0 1px 1px 0;
}

/* -----------------------------------------------
   FOOTER
----------------------------------------------- */
.footer {
  position: relative;
  z-index: 2;
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 48px;
  padding: 64px 0 48px;
  flex-wrap: wrap;
}

.footer__brand {
  display: flex;
  flex-direction: column;
  gap: 14px;
  max-width: 240px;
}

.footer__logo {
  display: inline-flex;
}

.footer__tagline {
  font-size: 11px;
  color: var(--slate-dim);
  letter-spacing: 0.05em;
  line-height: 1.5;
}

.footer__links {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.footer__col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer__col-title {
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--slate-dim);
  margin-bottom: 4px;
}

.footer__col a {
  font-size: 13px;
  color: var(--slate);
  transition: color var(--transition);
}

.footer__col a:hover {
  color: var(--white);
}

.footer__bottom {
  border-top: 1px solid var(--border);
}

.footer__bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
  gap: 16px;
  flex-wrap: wrap;
}

.footer__bottom-inner .mono {
  font-size: 10px;
  color: var(--slate-dim);
  letter-spacing: 0.06em;
}

.footer__sys {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--slate-dim);
}

/* -----------------------------------------------
   Particle (hero)
----------------------------------------------- */
.particle {
  position: absolute;
  width: 2px;
  height: 2px;
  border-radius: 50%;
  background: var(--cyan);
  opacity: 0;
  animation: particle-float linear infinite;
}

@keyframes particle-float {
  0% {
    opacity: 0;
    transform: translateY(0) scale(0);
  }
  10% {
    opacity: 0.6;
    transform: translateY(-20px) scale(1);
  }
  90% {
    opacity: 0.2;
  }
  100% {
    opacity: 0;
    transform: translateY(-120px) scale(0.5);
  }
}

/* -----------------------------------------------
   Responsive
----------------------------------------------- */
@media (max-width: 1024px) {
  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .testimonials__grid .testi-card:last-child {
    grid-column: 1 / -1;
    max-width: 480px;
    margin: 0 auto;
    width: 100%;
  }
}

@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero__sub {
    max-width: 100%;
    margin-left: auto;
    margin-right: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__badge {
    margin: 0 auto 28px;
  }

  .hero__mockup {
    max-width: 400px;
    margin: 0 auto;
  }

  .float-chip {
    display: none;
  }

  .pipeline {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  .pipeline__step {
    max-width: 100%;
    width: 100%;
  }

  .pipeline__arrow {
    padding-top: 0;
    flex-direction: row;
    width: auto;
    gap: 8px;
  }

  .pipeline__arrow-line {
    width: 40px;
    height: 1px;
    margin-bottom: 0;
  }

  .pipeline__arrow-flow {
    left: -100%;
    top: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    animation: flow-right 2s linear infinite;
  }

  .pipeline__arrow-flow--violet {
    background: linear-gradient(90deg, transparent, var(--violet), transparent);
  }

  @keyframes flow-right {
    0% { left: -100%; }
    100% { left: 200%; }
  }

  .pipeline__arrow svg {
    transform: rotate(-90deg);
  }

  .caps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-bar__div {
    display: none;
  }

  .stats-bar__inner {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

@media (max-width: 680px) {
  .nav__links, .nav__cta {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .features__grid {
    grid-template-columns: 1fr;
  }

  .caps-grid {
    grid-template-columns: 1fr;
  }

  .testimonials__grid {
    grid-template-columns: 1fr;
  }

  .testimonials__grid .testi-card:last-child {
    grid-column: auto;
    max-width: 100%;
  }

  .cta-box {
    padding: 40px 24px;
  }

  .cta-box__form {
    flex-direction: column;
  }

  .cta-box__guarantees {
    flex-direction: column;
    gap: 12px;
  }

  .tech-band {
    gap: 20px;
  }

  .tech-band__sep {
    display: none;
  }

  .footer__inner {
    flex-direction: column;
    gap: 32px;
  }

  .footer__links {
    gap: 28px;
  }

  .stats-bar__inner {
    grid-template-columns: 1fr;
  }

  .sys-indicator {
    display: none;
  }

  .hero {
    padding: 100px 0 60px;
  }
}

/* -----------------------------------------------
   AI ACTIVE INDICATOR (corner)
----------------------------------------------- */
.ai-active-indicator {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 150;
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(3, 0, 20, 0.92);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-lg);
  padding: 10px 14px;
  backdrop-filter: blur(16px);
  box-shadow: 0 0 24px rgba(0, 240, 255, 0.15), 0 0 48px rgba(0, 240, 255, 0.06);
  pointer-events: none;
}

.ai-active-indicator__brain {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cyan-dim);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-sm);
  animation: brain-pulse 2.5s ease-in-out infinite;
  flex-shrink: 0;
}

@keyframes brain-pulse {
  0%, 100% { box-shadow: 0 0 6px rgba(0, 240, 255, 0.3); }
  50% { box-shadow: 0 0 16px rgba(0, 240, 255, 0.6), 0 0 30px rgba(0, 240, 255, 0.2); }
}

.ai-active-indicator__info {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.ai-active-indicator__label {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--cyan);
}

.ai-active-indicator__sub {
  font-size: 8px;
  letter-spacing: 0.08em;
  color: var(--slate-dim);
}

.ai-active-indicator__pulse {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 8px var(--green-glow);
  animation: sys-blink 1.4s ease-in-out infinite;
  flex-shrink: 0;
}

@media (max-width: 680px) {
  .ai-active-indicator {
    bottom: 16px;
    right: 16px;
    padding: 8px 10px;
  }
  .ai-active-indicator__sub {
    display: none;
  }
}

/* -----------------------------------------------
   HERO AI THINKING INDICATOR
----------------------------------------------- */
.hero__ai-thinking {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 16px;
  background: rgba(0, 240, 255, 0.04);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-md);
  max-width: 380px;
}

.hero__ai-thinking-nodes {
  display: flex;
  align-items: center;
  gap: 5px;
  flex-shrink: 0;
}

.thinking-node {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 6px var(--cyan-glow);
  animation: thinking-wave 1.8s ease-in-out infinite;
}

.thinking-node--1 { animation-delay: 0s; background: var(--cyan); }
.thinking-node--2 { animation-delay: 0.18s; background: var(--cyan); }
.thinking-node--3 { animation-delay: 0.36s; background: var(--violet); box-shadow: 0 0 6px var(--violet-glow); }
.thinking-node--4 { animation-delay: 0.54s; background: var(--violet); box-shadow: 0 0 6px var(--violet-glow); }
.thinking-node--5 { animation-delay: 0.72s; background: var(--green); box-shadow: 0 0 6px var(--green-glow); }

@keyframes thinking-wave {
  0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
  40% { opacity: 1; transform: scale(1.3); }
}

.hero__ai-thinking-label {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.thinking-status {
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--cyan);
}

.thinking-latency {
  font-size: 8px;
  letter-spacing: 0.08em;
  color: var(--slate-dim);
}

/* -----------------------------------------------
   HERO BRAIN VISUALIZATION
----------------------------------------------- */
.hero__brain-viz {
  position: absolute;
  top: -50px;
  right: -30px;
  width: 200px;
  height: 200px;
  pointer-events: none;
  z-index: 0;
  opacity: 0.75;
}

.hero__brain-viz canvas {
  width: 100%;
  height: 100%;
}

.hero__brain-label {
  position: absolute;
  bottom: -8px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 7px;
  letter-spacing: 0.14em;
  color: var(--cyan);
  opacity: 0.6;
  white-space: nowrap;
}

.hero__mockup {
  position: relative;
  display: flex;
  justify-content: center;
}

/* -----------------------------------------------
   STATS SECTION — MEGA VERSION
----------------------------------------------- */
.stats-section {
  position: relative;
  z-index: 2;
  padding: 100px 0;
  overflow: hidden;
}

.stats-section__bg-viz {
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.35;
}

.stats-section__bg-viz canvas {
  width: 100%;
  height: 100%;
}

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

.stat-mega-item {
  position: relative;
  background: rgba(6, 1, 36, 0.7);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  backdrop-filter: blur(12px);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  overflow: hidden;
}

.stat-mega-item::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(0,240,255,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.stat-mega-item[data-glow="violet"]::before {
  background: radial-gradient(ellipse at 50% 0%, rgba(139,92,246,0.06) 0%, transparent 60%);
}

.stat-mega-item[data-glow="green"]::before {
  background: radial-gradient(ellipse at 50% 0%, rgba(0,255,136,0.04) 0%, transparent 60%);
}

.stat-mega-item:hover {
  transform: translateY(-6px);
}

.stat-mega-item[data-glow="cyan"]:hover {
  border-color: var(--border-cyan);
  box-shadow: 0 0 30px rgba(0,240,255,0.12), 0 20px 60px rgba(0,0,0,0.4);
}

.stat-mega-item[data-glow="violet"]:hover {
  border-color: var(--border-violet);
  box-shadow: 0 0 30px rgba(139,92,246,0.12), 0 20px 60px rgba(0,0,0,0.4);
}

.stat-mega-item[data-glow="green"]:hover {
  border-color: var(--border-green);
  box-shadow: 0 0 30px rgba(0,255,136,0.10), 0 20px 60px rgba(0,0,0,0.4);
}

.stat-mega-item__icon {
  margin-bottom: 8px;
}

.stat-mega-item__val {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1;
}

.stat-mega-item__label {
  font-size: 13px;
  color: var(--slate);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.stat-mega-item__bar {
  width: 100%;
  height: 3px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  margin-top: 8px;
  overflow: hidden;
}

.stat-mega-item__bar-fill {
  height: 100%;
  width: 0%;
  background: var(--color, var(--cyan));
  border-radius: 2px;
  box-shadow: 0 0 8px var(--color, var(--cyan));
  transition: width 1.4s ease 0.3s;
}

.stat-mega-item.revealed .stat-mega-item__bar-fill {
  width: var(--w, 0%);
}

.stat-mega-item__tag {
  font-size: 8px;
  letter-spacing: 0.16em;
  color: var(--slate-dim);
  margin-top: 4px;
}

@media (max-width: 900px) {
  .stats-mega-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-mega-item__val {
    font-size: 36px;
  }
}

@media (max-width: 480px) {
  .stats-mega-grid {
    grid-template-columns: 1fr;
  }
}

/* -----------------------------------------------
   LIVE AI DEMO SECTION
----------------------------------------------- */
.ai-demo-section {
  position: relative;
  z-index: 2;
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(0,240,255,0.015) 50%, transparent);
}

.ai-demo-box {
  background: rgba(6, 1, 36, 0.85);
  border: 1px solid var(--border-cyan);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: 0 0 60px rgba(0,240,255,0.08), 0 0 120px rgba(139,92,246,0.06);
  backdrop-filter: blur(20px);
  max-width: 860px;
  margin: 0 auto;
}

.ai-demo-box__header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 24px;
  border-bottom: 1px solid var(--border);
  background: rgba(0,240,255,0.03);
}

.ai-demo-box__dots {
  display: flex;
  gap: 5px;
}

.ai-demo-box__dots span {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.ai-demo-box__dots span:nth-child(1) { background: #ff5f57; opacity: 0.7; }
.ai-demo-box__dots span:nth-child(2) { background: #ffbd2e; opacity: 0.7; }
.ai-demo-box__dots span:nth-child(3) { background: #28ca41; opacity: 0.7; }

.ai-demo-box__title {
  font-size: 11px;
  color: var(--slate);
  letter-spacing: 0.08em;
  flex: 1;
  text-align: center;
}

.ai-demo-box__status {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 9px;
  letter-spacing: 0.1em;
  color: var(--green);
}

.ai-demo-box__body {
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

/* Demo pipeline visualization */
.ai-demo-pipeline {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 16px;
  background: rgba(0,0,0,0.2);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.ai-demo-pipeline__node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.ai-demo-pipeline__node span {
  font-size: 8px;
  letter-spacing: 0.12em;
  color: var(--slate-dim);
}

.ai-demo-pipeline__node-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
  animation: pipeline-pulse 2s ease-in-out infinite;
}

.ai-demo-pipeline__node-dot--violet {
  background: var(--violet);
  box-shadow: 0 0 8px var(--violet-glow);
  animation: pipeline-pulse-violet 2s ease-in-out infinite 0.3s;
}

.ai-demo-pipeline__node-dot--green {
  background: var(--green);
  box-shadow: 0 0 8px var(--green-glow);
  animation: pipeline-pulse-green 2s ease-in-out infinite 0.6s;
}

@keyframes pipeline-pulse {
  0%, 100% { box-shadow: 0 0 4px var(--cyan-glow); transform: scale(1); }
  50% { box-shadow: 0 0 16px var(--cyan-glow); transform: scale(1.3); }
}
@keyframes pipeline-pulse-violet {
  0%, 100% { box-shadow: 0 0 4px var(--violet-glow); transform: scale(1); }
  50% { box-shadow: 0 0 16px var(--violet-glow); transform: scale(1.3); }
}
@keyframes pipeline-pulse-green {
  0%, 100% { box-shadow: 0 0 4px var(--green-glow); transform: scale(1); }
  50% { box-shadow: 0 0 16px var(--green-glow); transform: scale(1.3); }
}

.ai-demo-pipeline__line {
  flex: 1;
  height: 2px;
  background: rgba(255,255,255,0.05);
  position: relative;
  overflow: hidden;
  min-width: 40px;
  max-width: 120px;
}

.ai-demo-pipeline__flow {
  position: absolute;
  top: 0;
  left: -100%;
  width: 50%;
  height: 100%;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  animation: flow-right-demo 2s linear infinite;
}

.ai-demo-pipeline__flow--violet {
  background: linear-gradient(90deg, transparent, var(--violet), transparent);
  animation-delay: 0.4s;
}

.ai-demo-pipeline__flow--green {
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  animation-delay: 0.8s;
}

@keyframes flow-right-demo {
  0% { left: -100%; }
  100% { left: 200%; }
}

/* Demo chat */
.ai-demo-chat {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.ai-demo-chat__msg {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.ai-demo-chat__msg--user {
  flex-direction: row-reverse;
}

.ai-demo-chat__avatar {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  font-family: var(--font-mono);
}

.ai-demo-chat__avatar--user {
  background: var(--cyan-dim);
  border: 1px solid var(--border-cyan);
  color: var(--cyan);
  font-size: 11px;
}

.ai-demo-chat__avatar--ai {
  background: var(--violet-dim);
  border: 1px solid var(--border-violet);
  color: var(--violet);
}

.ai-demo-chat__bubble {
  display: flex;
  flex-direction: column;
  gap: 6px;
  max-width: 80%;
}

.ai-demo-chat__tag {
  font-size: 8px;
  letter-spacing: 0.12em;
  color: var(--slate-dim);
}

.ai-demo-chat__tag--ai {
  color: var(--violet);
  opacity: 0.8;
}

.ai-demo-chat__bubble p {
  font-size: 14px;
  line-height: 1.6;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
}

.ai-demo-chat__msg--user .ai-demo-chat__bubble p {
  background: rgba(0,240,255,0.08);
  border: 1px solid rgba(0,240,255,0.14);
  border-radius: 8px 8px 2px 8px;
  color: rgba(255,255,255,0.9);
  text-align: right;
}

.ai-demo-chat__bubble--ai {
  position: relative;
}

/* AI typing indicator */
.ai-demo-typing {
  display: flex;
  gap: 5px;
  padding: 12px 16px;
  background: rgba(139,92,246,0.08);
  border: 1px solid rgba(139,92,246,0.15);
  border-radius: 2px 8px 8px 8px;
  width: fit-content;
}

.ai-demo-typing span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--violet);
  animation: typing-bounce 1.2s ease-in-out infinite;
}

.ai-demo-typing span:nth-child(2) { animation-delay: 0.2s; }
.ai-demo-typing span:nth-child(3) { animation-delay: 0.4s; }

/* AI response */
.ai-demo-response {
  background: rgba(139,92,246,0.08);
  border: 1px solid rgba(139,92,246,0.15);
  border-radius: 2px 8px 8px 8px;
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255,255,255,0.88);
  animation: response-appear 0.4s ease forwards;
}

@keyframes response-appear {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.ai-demo-response-glow {
  position: absolute;
  inset: -1px;
  border-radius: 2px 8px 8px 8px;
  background: transparent;
  box-shadow: 0 0 20px rgba(139,92,246,0.3), 0 0 40px rgba(139,92,246,0.1);
  animation: response-glow-pulse 2s ease-in-out infinite;
  pointer-events: none;
}

@keyframes response-glow-pulse {
  0%, 100% { box-shadow: 0 0 12px rgba(139,92,246,0.2); }
  50% { box-shadow: 0 0 28px rgba(139,92,246,0.4), 0 0 50px rgba(139,92,246,0.15); }
}

/* Demo metrics row */
.ai-demo-metrics {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.ai-demo-metric {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  padding: 14px;
  border-right: 1px solid var(--border);
  text-align: center;
  background: rgba(0,0,0,0.2);
}

.ai-demo-metric:last-child {
  border-right: none;
}

.ai-demo-metric__label {
  font-size: 8px;
  letter-spacing: 0.1em;
  color: var(--slate-dim);
}

.ai-demo-metric__val {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--white);
}

@media (max-width: 680px) {
  .ai-demo-pipeline {
    flex-wrap: wrap;
    gap: 8px;
  }
  .ai-demo-pipeline__line {
    display: none;
  }
  .ai-demo-metrics {
    flex-wrap: wrap;
  }
  .ai-demo-metric {
    flex: 1 1 45%;
    border-right: none;
    border-bottom: 1px solid var(--border);
  }
  .ai-demo-metric:nth-child(odd) {
    border-right: 1px solid var(--border);
  }
  .ai-demo-chat__bubble {
    max-width: 90%;
  }
}

/* -----------------------------------------------
   AI ARCHITECTURE SECTION
----------------------------------------------- */
.ai-arch-section {
  position: relative;
  z-index: 2;
  padding: 100px 0;
  background: linear-gradient(180deg, transparent, rgba(139,92,246,0.02) 50%, transparent);
}

.arch-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-bottom: 60px;
}

.arch-layer {
  flex: 1;
  max-width: 240px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.arch-layer__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 0 4px;
}

.arch-layer__num {
  font-size: 9px;
  letter-spacing: 0.14em;
  color: var(--slate-dim);
}

.arch-layer__status {
  font-size: 8px;
  letter-spacing: 0.12em;
}

.arch-layer__card {
  width: 100%;
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(6,1,36,0.7);
  backdrop-filter: blur(10px);
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: var(--transition);
}

.arch-layer__card--cyan {
  border-color: var(--border-cyan);
  box-shadow: 0 0 20px rgba(0,240,255,0.06), inset 0 0 20px rgba(0,240,255,0.02);
}

.arch-layer__card--violet {
  border-color: var(--border-violet);
  box-shadow: 0 0 20px rgba(139,92,246,0.06), inset 0 0 20px rgba(139,92,246,0.02);
}

.arch-layer__card--green {
  border-color: var(--border-green);
  box-shadow: 0 0 20px rgba(0,255,136,0.06), inset 0 0 20px rgba(0,255,136,0.02);
}

.arch-layer__card:hover {
  transform: translateY(-4px);
}

.arch-layer__card--cyan:hover {
  box-shadow: 0 0 32px rgba(0,240,255,0.12);
}

.arch-layer__card--violet:hover {
  box-shadow: 0 0 32px rgba(139,92,246,0.12);
}

.arch-layer__card--green:hover {
  box-shadow: 0 0 32px rgba(0,255,136,0.10);
}

.arch-layer__icon {
  margin-bottom: 4px;
}

.arch-layer__title {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--white);
}

.arch-layer__desc {
  font-size: 12px;
  color: var(--slate);
  line-height: 1.5;
}

.arch-layer__tags {
  display: flex;
  gap: 5px;
  flex-wrap: wrap;
}

.arch-layer__tag {
  font-size: 8px;
  letter-spacing: 0.08em;
  padding: 2px 7px;
  border-radius: 100px;
  background: rgba(0,240,255,0.08);
  border: 1px solid var(--border-cyan);
  color: var(--cyan);
}

.arch-layer__tag--violet {
  background: var(--violet-dim);
  border-color: var(--border-violet);
  color: var(--violet);
}

.arch-layer__tag--green {
  background: var(--green-dim);
  border-color: var(--border-green);
  color: var(--green);
}

/* Connectors between layers */
.arch-connector {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: 50px;
  flex-shrink: 0;
  width: 50px;
}

.arch-connector__line {
  width: 1px;
  height: 40px;
  background: rgba(0,240,255,0.2);
  position: relative;
  overflow: hidden;
  margin-bottom: 4px;
}

.arch-connector__line--violet {
  background: rgba(139,92,246,0.2);
}

.arch-connector__line--green {
  background: rgba(0,255,136,0.2);
}

.arch-connector__flow {
  position: absolute;
  top: -100%;
  width: 100%;
  height: 50%;
  background: linear-gradient(180deg, transparent, var(--cyan), transparent);
  animation: flow-down 1.8s linear infinite;
}

.arch-connector__flow--violet {
  background: linear-gradient(180deg, transparent, var(--violet), transparent);
  animation-delay: 0.4s;
}

.arch-connector__flow--green {
  background: linear-gradient(180deg, transparent, var(--green), transparent);
  animation-delay: 0.8s;
}

.arch-connector__arrow {
  opacity: 0.5;
}

@media (max-width: 900px) {
  .arch-flow {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }
  .arch-layer {
    max-width: 100%;
    width: 100%;
  }
  .arch-connector {
    padding-top: 0;
    flex-direction: row;
    width: auto;
    gap: 8px;
  }
  .arch-connector__line {
    width: 40px;
    height: 1px;
    margin-bottom: 0;
  }
  .arch-connector__flow {
    left: -100%;
    top: 0;
    width: 50%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--cyan), transparent);
    animation: flow-right-arch 1.8s linear infinite;
  }
  .arch-connector__flow--violet {
    background: linear-gradient(90deg, transparent, var(--violet), transparent);
  }
  .arch-connector__flow--green {
    background: linear-gradient(90deg, transparent, var(--green), transparent);
  }
  @keyframes flow-right-arch {
    0% { left: -100%; }
    100% { left: 200%; }
  }
  .arch-connector__arrow {
    transform: rotate(-90deg);
  }
}

/* -----------------------------------------------
   COMPARISON SECTION
----------------------------------------------- */
.comparison-section {
  position: relative;
  z-index: 2;
  padding: 100px 0;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 0;
  align-items: start;
  max-width: 900px;
  margin: 0 auto;
}

.comparison-col {
  padding: 32px;
  border-radius: var(--radius-xl);
  background: rgba(6,1,36,0.6);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.comparison-col--traditional {
  border-color: rgba(255,68,68,0.15);
}

.comparison-col--ai {
  border-color: var(--border-cyan);
  box-shadow: 0 0 40px rgba(0,240,255,0.06);
}

.comparison-col--ai:hover {
  border-color: var(--cyan);
  box-shadow: 0 0 60px rgba(0,240,255,0.12);
}

.comparison-col__header {
  margin-bottom: 24px;
}

.comparison-col__badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 9px;
  letter-spacing: 0.16em;
  padding: 4px 10px;
  border-radius: 100px;
  margin-bottom: 10px;
}

.comparison-col__badge--old {
  color: rgba(255,68,68,0.8);
  background: rgba(255,68,68,0.08);
  border: 1px solid rgba(255,68,68,0.2);
}

.comparison-col__badge--new {
  color: var(--cyan);
  background: var(--cyan-dim);
  border: 1px solid var(--border-cyan);
}

.comparison-col__title {
  font-size: 18px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--white);
}

.comparison-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 24px;
}

.comparison-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13px;
  line-height: 1.5;
}

.comparison-item svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.comparison-item--bad {
  color: var(--slate);
}

.comparison-item--good {
  color: rgba(255,255,255,0.85);
}

.comparison-col__score {
  padding-top: 20px;
  border-top: 1px solid var(--border);
  text-align: center;
}

.comparison-col__score-val {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.comparison-vs {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 48px 16px;
  gap: 12px;
}

.comparison-vs__label {
  font-size: 16px;
  font-weight: 700;
  color: var(--slate-dim);
  letter-spacing: 0.1em;
}

.comparison-vs__line {
  width: 1px;
  flex: 1;
  background: var(--border);
  min-height: 40px;
}

@media (max-width: 760px) {
  .comparison-grid {
    grid-template-columns: 1fr;
    gap: 16px;
    max-width: 480px;
  }
  .comparison-vs {
    flex-direction: row;
    padding: 8px 0;
    justify-content: center;
  }
  .comparison-vs__line {
    width: 40px;
    height: 1px;
    flex: 0;
  }
}

/* -----------------------------------------------
   FEATURE CARD MINI DEMOS
----------------------------------------------- */
.feature-card__mini-demo {
  margin: 12px 0;
  padding: 12px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 11px;
}

.mini-demo-label {
  font-size: 7px;
  letter-spacing: 0.14em;
  color: var(--slate-dim);
  margin-bottom: 8px;
}

/* Skill chart */
.mini-skill-chart {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mini-skill-item {
  display: flex;
  align-items: center;
  gap: 8px;
}

.mini-skill-name {
  font-size: 10px;
  color: var(--slate);
  min-width: 70px;
  flex-shrink: 0;
}

.mini-skill-bar {
  flex: 1;
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  overflow: hidden;
}

.mini-skill-fill {
  height: 100%;
  width: var(--w, 50%);
  background: var(--color, var(--cyan));
  border-radius: 2px;
  box-shadow: 0 0 4px var(--color, var(--cyan));
}

.mini-skill-val {
  font-size: 10px;
  min-width: 32px;
  text-align: right;
}

/* Mode toggle */
.mini-mode-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mini-mode {
  padding: 8px 10px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  opacity: 0.5;
  transition: var(--transition);
}

.mini-mode.active {
  opacity: 1;
  border-color: var(--border-violet);
  background: rgba(139,92,246,0.06);
}

.mini-mode__label {
  display: block;
  font-size: 7px;
  letter-spacing: 0.14em;
  color: var(--violet);
  margin-bottom: 4px;
}

.mini-mode__text {
  font-size: 10px;
  color: var(--slate);
  line-height: 1.4;
  font-style: italic;
}

/* Exercise demo */
.mini-exercise {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.mini-exercise__label {
  font-size: 7px;
  letter-spacing: 0.14em;
  color: var(--green);
}

.mini-exercise__q {
  font-size: 12px;
  color: rgba(255,255,255,0.85);
  line-height: 1.4;
  padding: 6px 0;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
}

.mini-exercise__footer {
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  color: var(--slate-dim);
}

/* Correction demo */
.mini-correction {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mini-correction__student,
.mini-correction__ai {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 11px;
}

.mini-correction__who {
  font-size: 8px;
  letter-spacing: 0.1em;
  flex-shrink: 0;
  padding-top: 1px;
}

.mini-correction__answer {
  font-family: var(--font-mono);
  font-size: 11px;
}

.mini-correction__answer--wrong {
  color: #ff4444;
  text-decoration: line-through;
  opacity: 0.8;
}

.mini-correction__feedback {
  font-size: 10px;
  color: var(--slate);
  line-height: 1.5;
  font-style: italic;
}

/* -----------------------------------------------
   ENHANCED NEURAL CANVAS — More visible
----------------------------------------------- */
#neural-canvas {
  opacity: 0.65;
}

/* -----------------------------------------------
   GLOW PULSES — Stronger on AI elements
----------------------------------------------- */
.ai-interface {
  animation: ai-interface-glow 3s ease-in-out infinite;
}

@keyframes ai-interface-glow {
  0%, 100% { box-shadow: 0 0 40px var(--cyan-glow), 0 0 80px rgba(139,92,246,0.12), inset 0 0 30px rgba(0,240,255,0.02); }
  50% { box-shadow: 0 0 60px rgba(0,240,255,0.4), 0 0 100px rgba(139,92,246,0.18), inset 0 0 40px rgba(0,240,255,0.04); }
}

/* Hero demo button glow */
.hero__demo-btn {
  color: var(--cyan) !important;
  border-color: var(--border-cyan) !important;
  gap: 8px;
}

.hero__demo-btn:hover {
  background: var(--cyan-dim) !important;
  box-shadow: 0 0 20px rgba(0,240,255,0.15) !important;
}