/* ========================================
   MiClaw — Product Page Styles
   ======================================== */

/* --- Design Tokens --- */
:root {
  /* Colors */
  --bg:          #0a0a0a;
  --bg-elevated: #111111;
  --bg-card:     #161616;
  --bg-card-hover: #1a1a1a;

  --text-primary:   #f5f5f5;
  --text-secondary: #999999;
  --text-tertiary:  #555555;

  --accent-blue:   #4a9eff;
  --accent-red:    #ff4a4a;
  --accent-green:  #4aff7a;
  --accent-orange: #ffa64a;

  --accent-blue-dim:   rgba(74, 158, 255, 0.15);
  --accent-red-dim:    rgba(255, 74, 74, 0.15);
  --accent-green-dim:  rgba(74, 255, 122, 0.15);
  --accent-orange-dim: rgba(255, 166, 74, 0.15);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

  /* Spacing */
  --space-xs:  0.5rem;
  --space-sm:  1rem;
  --space-md:  1.5rem;
  --space-lg:  2.5rem;
  --space-xl:  4rem;
  --space-2xl: 6rem;
  --space-3xl: 10rem;

  /* Layout */
  --container-max: 1100px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Transitions */
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --duration-fast: 200ms;
  --duration-normal: 400ms;
  --duration-slow: 800ms;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

/* --- Utility --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
}

.text-accent-blue   { color: var(--accent-blue); }
.text-accent-red    { color: var(--accent-red); }
.text-accent-green  { color: var(--accent-green); }
.text-accent-orange { color: var(--accent-orange); }

/* --- Reveal Animation --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--duration-slow) var(--ease-out),
              transform var(--duration-slow) var(--ease-out);
}

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

/* Stagger children */
.reveal:nth-child(2) { transition-delay: 80ms; }
.reveal:nth-child(3) { transition-delay: 160ms; }
.reveal:nth-child(4) { transition-delay: 240ms; }
.reveal:nth-child(5) { transition-delay: 320ms; }

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ========================================
   NAV
   ======================================== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-sm) 0;
  transition: background var(--duration-normal) var(--ease-out),
              box-shadow var(--duration-normal) var(--ease-out);
}

.nav.scrolled {
  background: rgba(10, 10, 10, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.05);
}

.nav-inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.nav-links {
  display: flex;
  gap: var(--space-lg);
}

.nav-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--duration-fast);
  letter-spacing: 0.02em;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 1.5px;
  background: var(--text-primary);
  transition: transform var(--duration-fast) var(--ease-out),
              opacity var(--duration-fast);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(4px, 5px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -5px);
}

.mobile-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 99;
  background: rgba(10, 10, 10, 0.97);
  backdrop-filter: blur(20px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-lg);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--duration-normal) var(--ease-out);
}

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

.mobile-nav a {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}

.mobile-nav a:hover {
  color: var(--text-primary);
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
}

/* ========================================
   HERO
   ======================================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

.hero-gradient {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
  background:
    radial-gradient(ellipse 60% 50% at 50% 50%, transparent 0%, var(--bg) 100%),
    radial-gradient(ellipse 40% 30% at 50% 40%, rgba(74, 158, 255, 0.06) 0%, transparent 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  padding: var(--space-3xl) var(--space-md);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 6px 16px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.05em;
  margin-bottom: var(--space-lg);
}

/* LED indicator dot */
.led {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.led--blue {
  background: var(--accent-blue);
  box-shadow: 0 0 8px var(--accent-blue);
  animation: led-pulse-blue 2s ease-in-out infinite;
}

@keyframes led-pulse-blue {
  0%, 100% { box-shadow: 0 0 4px var(--accent-blue); }
  50% { box-shadow: 0 0 12px var(--accent-blue), 0 0 24px rgba(74, 158, 255, 0.3); }
}

.hero-title {
  margin-bottom: var(--space-md);
}

.hero-title-brand {
  display: block;
  font-size: clamp(4rem, 12vw, 10rem);
  font-weight: 900;
  letter-spacing: -0.05em;
  line-height: 1;
  background: linear-gradient(180deg, #ffffff 0%, #888888 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-tagline {
  margin-bottom: var(--space-lg);
}

.hero-tagline-zh {
  display: block;
  font-size: clamp(1.25rem, 3vw, 2rem);
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 4px;
}

.hero-tagline-en {
  display: block;
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  color: var(--text-tertiary);
  font-weight: 400;
  letter-spacing: 0.15em;
  text-transform: uppercase;
}

.hero-desc {
  font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 480px;
  margin: 0 auto var(--space-xl);
}

.hero-cta {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  padding: 12px 28px;
  border-radius: 100px;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all var(--duration-fast) var(--ease-out);
  cursor: pointer;
  border: none;
}

.btn--primary {
  background: var(--text-primary);
  color: var(--bg);
}

.btn--primary:hover {
  background: #ffffff;
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(255,255,255,0.15);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid rgba(255,255,255,0.15);
}

.btn--ghost:hover {
  color: var(--text-primary);
  border-color: rgba(255,255,255,0.3);
}

/* Scroll hint */
.hero-scroll-hint {
  margin-top: var(--space-2xl);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.3), transparent);
  margin: 0 auto;
  animation: scroll-hint 2s ease-in-out infinite;
}

@keyframes scroll-hint {
  0% { opacity: 0; transform: translateY(-10px); }
  50% { opacity: 1; }
  100% { opacity: 0; transform: translateY(10px); }
}

/* ========================================
   SECTIONS — COMMON
   ======================================== */
.section {
  padding: var(--space-3xl) 0;
  position: relative;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: var(--space-lg);
}

.section-subtitle {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

/* ========================================
   PROBLEM SECTION
   ======================================== */
.section--problem {
  background: linear-gradient(180deg, var(--bg) 0%, #0d0d0d 100%);
}

.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-bottom: var(--space-2xl);
}

.problem-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--duration-fast), transform var(--duration-fast) var(--ease-out);
}

.problem-card:hover {
  border-color: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

.problem-icon {
  width: 48px;
  height: 48px;
  color: var(--accent-red);
  margin-bottom: var(--space-md);
  opacity: 0.7;
}

.problem-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.problem-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Trapped AI visual */
.problem-visual {
  display: flex;
  justify-content: center;
}

.trapped-ai {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.trapped-ai-screen {
  width: 120px;
  height: 90px;
  background: var(--bg-card);
  border: 2px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

.trapped-ai-face {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  width: 40px;
}

.trapped-ai-eye {
  width: 8px;
  height: 8px;
  background: var(--accent-blue);
  border-radius: 50%;
  animation: blink 3s ease-in-out infinite;
}

.trapped-ai-eye:nth-child(2) {
  animation-delay: 0.1s;
}

@keyframes blink {
  0%, 90%, 100% { transform: scaleY(1); }
  95% { transform: scaleY(0.1); }
}

.trapped-ai-mouth {
  width: 12px;
  height: 6px;
  border: 1.5px solid var(--accent-red);
  border-top: none;
  border-radius: 0 0 6px 6px;
  opacity: 0.6;
}

.trapped-ai-waves {
  display: flex;
  gap: 8px;
  margin-top: var(--space-sm);
  opacity: 0.2;
}

.trapped-ai-waves span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-tertiary);
  border-radius: 1px;
  animation: wave-fade 2s ease-in-out infinite;
}

.trapped-ai-waves span:nth-child(2) { animation-delay: 0.3s; width: 32px; }
.trapped-ai-waves span:nth-child(3) { animation-delay: 0.6s; }

@keyframes wave-fade {
  0%, 100% { opacity: 0.2; }
  50% { opacity: 0.6; }
}

@media (max-width: 768px) {
  .problem-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================
   SOLUTION SECTION
   ======================================== */
.section--solution {
  background: linear-gradient(180deg, #0d0d0d 0%, var(--bg) 100%);
}

.channels {
  display: flex;
  align-items: stretch;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}

.channel-card {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--duration-fast), transform var(--duration-fast) var(--ease-out);
}

.channel-card:hover {
  border-color: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

.channel-card--highlight {
  border-color: rgba(74, 158, 255, 0.2);
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(74, 158, 255, 0.05) 100%);
}

.channel-card--highlight:hover {
  border-color: rgba(74, 158, 255, 0.35);
}

.channel-icon {
  width: 48px;
  height: 48px;
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.channel-icon--audio {
  color: var(--accent-blue);
}

.channel-label {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.badge {
  display: inline-block;
  padding: 2px 8px;
  background: var(--accent-blue);
  color: var(--bg);
  border-radius: 100px;
  font-size: 0.6rem;
  font-weight: 700;
  letter-spacing: 0.08em;
}

.channel-card h3 {
  font-size: 1.2rem;
  font-weight: 600;
  margin-bottom: var(--space-xs);
}

.channel-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: var(--space-md);
}

.channel-stat {
  display: flex;
  align-items: baseline;
  gap: var(--space-xs);
}

.channel-stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.channel-stat-label {
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.pulse-glow {
  color: var(--accent-blue);
  animation: pulse-text 2s ease-in-out infinite;
}

@keyframes pulse-text {
  0%, 100% { opacity: 0.8; }
  50% { opacity: 1; text-shadow: 0 0 20px rgba(74, 158, 255, 0.4); }
}

/* Channel divider */
.channel-divider {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0 var(--space-xs);
}

.channel-divider-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, transparent, rgba(255,255,255,0.15), transparent);
}

.channel-divider-icon {
  font-size: 1.2rem;
  color: var(--text-tertiary);
  font-weight: 300;
}

/* Arrow */
.solution-arrow {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-lg);
}

.solution-arrow svg {
  width: 24px;
  height: 48px;
}

/* OpenClaw result */
.solution-result {
  text-align: center;
}

.solution-result-icon {
  display: flex;
  justify-content: center;
  margin-bottom: var(--space-md);
}

.openclaw-orb {
  position: relative;
  width: 80px;
  height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.openclaw-core {
  width: 24px;
  height: 24px;
  background: var(--accent-blue);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(74, 158, 255, 0.5);
}

.openclaw-ring {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  border: 1px solid rgba(74, 158, 255, 0.2);
  border-radius: 50%;
  animation: ring-expand 3s ease-out infinite;
}

.openclaw-ring:nth-child(1) {
  width: 50px;
  height: 50px;
}

.openclaw-ring:nth-child(2) {
  width: 70px;
  height: 70px;
  animation-delay: 1s;
}

@keyframes ring-expand {
  0% { opacity: 0.6; transform: translate(-50%, -50%) scale(0.8); }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.3); }
}

.solution-result h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
}

.solution-result p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

@media (max-width: 768px) {
  .channels {
    flex-direction: column;
  }

  .channel-divider {
    flex-direction: row;
    padding: var(--space-xs) 0;
  }

  .channel-divider-line {
    width: 40px;
    height: 1px;
  }
}

/* ========================================
   PRODUCT SHOWCASE
   ======================================== */
.section--product {
  background: linear-gradient(180deg, var(--bg) 0%, #0d0d0d 50%, var(--bg) 100%);
}

/* Device visual */
.device-showcase {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: var(--space-2xl);
}

.device {
  position: relative;
  margin-bottom: var(--space-md);
}

.device-body {
  width: 140px;
  height: 180px;
  background: linear-gradient(145deg, #1e1e1e 0%, #111111 100%);
  border-radius: var(--radius-xl);
  border: 1px solid rgba(255,255,255,0.08);
  position: relative;
  box-shadow:
    0 20px 60px rgba(0,0,0,0.6),
    inset 0 1px 0 rgba(255,255,255,0.05);
}

.device-clip {
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  width: 40px;
  height: 16px;
  background: linear-gradient(to bottom, #2a2a2a, #1a1a1a);
  border-radius: 4px 4px 0 0;
  border: 1px solid rgba(255,255,255,0.08);
  border-bottom: none;
}

.device-face {
  position: absolute;
  top: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.device-led {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-blue);
  box-shadow: 0 0 12px var(--accent-blue);
  transition: background 0.5s, box-shadow 0.5s;
}

.device-led.recording {
  background: var(--accent-red);
  box-shadow: 0 0 12px var(--accent-red), 0 0 30px rgba(255, 74, 74, 0.3);
}

.device-led.success {
  background: var(--accent-green);
  box-shadow: 0 0 12px var(--accent-green);
  animation: led-blink-green 0.5s ease-in-out 3;
}

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

.device-btn {
  width: 36px;
  height: 36px;
  background: linear-gradient(145deg, #2a2a2a, #1a1a1a);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.08);
  transition: transform 0.1s, box-shadow 0.1s;
}

.device-btn:active {
  transform: scale(0.95);
}

.device-btn-inner {
  width: 14px;
  height: 14px;
  background: rgba(255,255,255,0.06);
  border-radius: 50%;
}

.device-mic {
  display: flex;
  gap: 3px;
}

.device-mic span {
  display: block;
  width: 2px;
  height: 2px;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
}

.device-shadow {
  width: 100px;
  height: 20px;
  background: radial-gradient(ellipse, rgba(74, 158, 255, 0.1) 0%, transparent 70%);
  margin: 0 auto;
  border-radius: 50%;
}

.device-label {
  font-size: 0.8rem;
  color: var(--text-tertiary);
  text-align: center;
}

/* LED states */
.led-states {
  display: flex;
  justify-content: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  margin-bottom: var(--space-2xl);
}

.led-state {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.led-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
}

.led-dot--blue {
  background: var(--accent-blue);
  box-shadow: 0 0 8px var(--accent-blue);
}

.led-dot--red {
  background: var(--accent-red);
  box-shadow: 0 0 8px var(--accent-red);
  animation: led-pulse-red 1s ease-in-out infinite;
}

@keyframes led-pulse-red {
  0%, 100% { box-shadow: 0 0 4px var(--accent-red); }
  50% { box-shadow: 0 0 12px var(--accent-red), 0 0 24px rgba(255, 74, 74, 0.3); }
}

.led-dot--green {
  background: var(--accent-green);
  box-shadow: 0 0 8px var(--accent-green);
  animation: led-blink-green 1s ease-in-out infinite;
}

.led-dot--orange {
  background: var(--accent-orange);
  box-shadow: 0 0 8px var(--accent-orange);
}

/* Interaction flow */
.interaction {
  margin-bottom: var(--space-2xl);
}

.interaction-title {
  font-size: 1.2rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: var(--space-lg);
}

.interaction-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.flow-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-xs);
}

.flow-step-icon {
  width: 48px;
  height: 48px;
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}

.flow-step-icon--red { color: var(--accent-red); }
.flow-step-icon--blue { color: var(--accent-blue); }
.flow-step-icon--green { color: var(--accent-green); }

.flow-step span {
  font-size: 0.8rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.flow-arrow {
  font-size: 1.2rem;
  color: var(--text-tertiary);
  margin-bottom: 1.5rem;
}

/* Bento grid */
.bento {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-sm);
}

.bento-item {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: border-color var(--duration-fast), transform var(--duration-fast) var(--ease-out);
}

.bento-item:hover {
  border-color: rgba(255,255,255,0.1);
  transform: translateY(-2px);
}

.bento-item--wide {
  grid-column: span 2;
}

.bento-icon {
  width: 32px;
  height: 32px;
  color: var(--accent-blue);
  margin-bottom: var(--space-md);
}

.bento-icon--orange { color: var(--accent-orange); }
.bento-icon--green { color: var(--accent-green); }

.bento-item h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.bento-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

@media (max-width: 768px) {
  .bento {
    grid-template-columns: 1fr;
  }

  .bento-item--wide {
    grid-column: span 1;
  }

  .interaction-flow {
    flex-direction: column;
  }

  .flow-arrow {
    transform: rotate(90deg);
    margin-bottom: 0;
  }
}

/* ========================================
   HOW IT WORKS
   ======================================== */
.section--howitworks {
  background: var(--bg);
}

.pipeline {
  max-width: 600px;
  margin: 0 auto;
}

.pipeline-step {
  display: flex;
  gap: var(--space-lg);
  align-items: flex-start;
}

.pipeline-num {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-tertiary);
  letter-spacing: 0.1em;
  padding-top: 4px;
  min-width: 28px;
}

.pipeline-content {
  flex: 1;
  display: flex;
  gap: var(--space-md);
  align-items: flex-start;
  padding-bottom: var(--space-sm);
}

.pipeline-icon {
  width: 40px;
  height: 40px;
  min-width: 40px;
  color: var(--text-secondary);
}

.pipeline-icon--blue { color: var(--accent-blue); }
.pipeline-icon--green { color: var(--accent-green); }
.pipeline-icon--accent { color: var(--accent-orange); }

.pipeline-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.pipeline-content p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Sound wave animation */
.soundwave {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 40px;
  height: 40px;
}

.soundwave span {
  display: block;
  width: 3px;
  background: var(--accent-red);
  border-radius: 2px;
  animation: soundwave 1.2s ease-in-out infinite;
}

.soundwave span:nth-child(1) { height: 8px; animation-delay: 0s; }
.soundwave span:nth-child(2) { height: 16px; animation-delay: 0.15s; }
.soundwave span:nth-child(3) { height: 24px; animation-delay: 0.3s; }
.soundwave span:nth-child(4) { height: 16px; animation-delay: 0.45s; }
.soundwave span:nth-child(5) { height: 8px; animation-delay: 0.6s; }

@keyframes soundwave {
  0%, 100% { transform: scaleY(1); }
  50% { transform: scaleY(0.4); }
}

/* Connector line */
.pipeline-connector {
  width: 1px;
  height: 32px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.08), rgba(255,255,255,0.03));
  margin-left: 14px;
  margin-bottom: 0;
}

/* ========================================
   TECH SPECS
   ======================================== */
.section--specs {
  background: linear-gradient(180deg, var(--bg) 0%, #0d0d0d 100%);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-sm);
}

.spec-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-md);
  padding: var(--space-md) var(--space-md);
  transition: border-color var(--duration-fast);
}

.spec-card:hover {
  border-color: rgba(255,255,255,0.1);
}

.spec-name {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-xs);
}

.spec-value {
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 2px;
}

.spec-detail {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

@media (max-width: 768px) {
  .specs-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

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

/* ========================================
   COMPETITIVE COMPARISON
   ======================================== */
.section--compare {
  background: var(--bg);
}

.compare-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-top: var(--space-lg);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
  min-width: 600px;
}

.compare-table th,
.compare-table td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.compare-table th {
  font-size: 0.75rem;
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 500;
}

.compare-table td {
  color: var(--text-secondary);
}

.compare-table tbody tr:hover {
  background: rgba(255,255,255,0.02);
}

.compare-highlight {
  color: var(--accent-blue) !important;
  font-weight: 600;
  background: rgba(74, 158, 255, 0.04);
}

.compare-table th.compare-highlight {
  color: var(--accent-blue) !important;
}

/* ========================================
   VISION SECTION
   ======================================== */
.section--vision {
  background: linear-gradient(180deg, #0d0d0d 0%, var(--bg) 100%);
}

.vision-content {
  max-width: 800px;
  margin: 0 auto;
}

.vision-card {
  display: flex;
  gap: var(--space-xl);
  align-items: center;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
}

.vision-illustration {
  min-width: 160px;
  display: flex;
  justify-content: center;
}

/* Ambient sensing rings */
.ambient-rings {
  position: relative;
  width: 120px;
  height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.ambient-ring {
  position: absolute;
  border: 1px solid rgba(255, 166, 74, 0.15);
  border-radius: 50%;
  animation: ambient-pulse 4s ease-in-out infinite;
}

.ambient-ring:nth-child(1) {
  width: 60px;
  height: 60px;
  animation-delay: 0s;
}

.ambient-ring:nth-child(2) {
  width: 90px;
  height: 90px;
  animation-delay: 1s;
}

.ambient-ring:nth-child(3) {
  width: 120px;
  height: 120px;
  animation-delay: 2s;
}

@keyframes ambient-pulse {
  0%, 100% { opacity: 0.3; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.05); }
}

.ambient-core {
  position: relative;
  z-index: 1;
  width: 32px;
  height: 32px;
  color: var(--accent-orange);
}

.vision-text h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: var(--space-sm);
}

.vision-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-sm);
}

.vision-text p:last-child {
  margin-bottom: 0;
}

/* Vision tags */
.vision-tags {
  display: flex;
  justify-content: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
}

.vision-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  transition: border-color var(--duration-fast), transform var(--duration-fast);
}

.vision-tag:hover {
  border-color: rgba(255,255,255,0.15);
  transform: translateY(-1px);
}

.vision-tag-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
}

.vision-tag-dot--blue   { background: var(--accent-blue);   box-shadow: 0 0 6px var(--accent-blue); }
.vision-tag-dot--red    { background: var(--accent-red);    box-shadow: 0 0 6px var(--accent-red); }
.vision-tag-dot--green  { background: var(--accent-green);  box-shadow: 0 0 6px var(--accent-green); }
.vision-tag-dot--orange { background: var(--accent-orange); box-shadow: 0 0 6px var(--accent-orange); }

/* Vision quote */
.vision-quote {
  text-align: center;
}

.vision-quote blockquote {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.8;
  border-left: 2px solid var(--accent-orange);
  padding-left: var(--space-md);
  display: inline-block;
  text-align: left;
}

@media (max-width: 768px) {
  .vision-card {
    flex-direction: column;
    text-align: center;
  }

  .vision-illustration {
    min-width: auto;
  }
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: var(--space-2xl) 0 var(--space-lg);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer-logo {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-xs);
}

.footer-tagline {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-links a {
  font-size: 0.85rem;
  color: var(--text-secondary);
  transition: color var(--duration-fast);
}

.footer-links a:hover {
  color: var(--text-primary);
}

.footer-stat-num {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.footer-stat-label {
  font-size: 0.8rem;
  color: var(--text-secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.05);
  padding-top: var(--space-md);
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--text-tertiary);
}

@media (max-width: 768px) {
  .footer-content {
    flex-direction: column;
  }
}

/* ========================================
   SELECTION & SCROLLBAR
   ======================================== */
::selection {
  background: rgba(74, 158, 255, 0.3);
  color: var(--text-primary);
}

::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: rgba(255,255,255,0.1);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255,255,255,0.2);
}

/* ========================================
   FOCUS STYLES (Accessibility)
   ======================================== */
:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-blue);
  outline-offset: 2px;
  border-radius: 4px;
}