*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --primary-deep: #050c18;
  --primary: #0a1628;
  --primary-light: #122240;
  --primary-glow: #1a3456;
  --accent: #1e4d7b;
  --accent-warm: #d4a843;
  --accent-sky: #60a5fa;
  --gradient-main: linear-gradient(135deg, #1e4d7b, #3b82f6);
  --text-light: #f8f9fa;
  --text-muted: #a0aec0;
  --text-dark: #1a1a2e;
  --text-secondary: #5a6577;
  --surface: #ffffff;
  --surface-alt: #f4f6f9;
  --footer-bg: #040a14;
  --code-bg: rgba(30, 77, 123, 0.1);
  --max-width: 1100px;
  --border-radius: 12px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --primary-deep: #030810;
    --primary: #081424;
    --primary-light: #102040;
    --primary-glow: #1a3050;
    --text-muted: #718096;
    --text-dark: #eef1f5;
    --text-secondary: #8899b0;
    --surface: #0a1020;
    --surface-alt: #0e1828;
    --footer-bg: #020608;
    --code-bg: rgba(30, 77, 123, 0.15);
    color-scheme: dark;
  }
}

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, system-ui, sans-serif;
  color: var(--text-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -webkit-text-size-adjust: 100%;
  -webkit-tap-highlight-color: transparent;
  background: var(--surface);
}

a { color: inherit; text-decoration: none; touch-action: manipulation; }
img { max-width: 100%; display: block; }
code {
  background: var(--code-bg);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 0.9em;
  color: #163d63;
}
@media (prefers-color-scheme: dark) { code { color: var(--accent-sky); } }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  text-align: center;
  margin-bottom: 48px;
  color: var(--text-dark);
  position: relative;
  padding-bottom: 16px;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 64px;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent-warm), var(--accent-sky));
  border-radius: 4px;
  background-size: 200% 100%;
  animation: shimmerGradient 3s ease-in-out infinite;
}
@keyframes shimmerGradient {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ========== HERO ========== */
.hero {
  min-height: 100vh;
  background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 25%, var(--primary-light) 50%, var(--primary-glow) 70%, var(--primary-light) 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
  text-align: center;
  gap: 60px;
  flex-wrap: wrap;
  overflow: hidden;
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.25;
  pointer-events: none;
}
.hero-blob-1 { width: 500px; height: 500px; background: radial-gradient(circle, #1e4d7b 0%, transparent 70%); top: -120px; right: -80px; animation: floatBlob 20s ease-in-out infinite; }
.hero-blob-2 { width: 400px; height: 400px; background: radial-gradient(circle, #d4a843 0%, transparent 70%); bottom: -100px; left: -60px; animation: floatBlob 25s ease-in-out infinite reverse; }
.hero-blob-3 { width: 300px; height: 300px; background: radial-gradient(circle, #60a5fa 0%, transparent 70%); top: 40%; left: 10%; animation: floatBlob 18s ease-in-out infinite 2s; }
.hero-blob-4 { width: 200px; height: 200px; background: radial-gradient(circle, #eab308 0%, transparent 70%); bottom: 20%; right: 15%; animation: floatBlob 22s ease-in-out infinite 5s; }
@keyframes floatBlob {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -40px) scale(1.1); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(40px, 30px) scale(1.05); }
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 50%, black 20%, transparent 70%);
}

.hero-content { flex: 1; min-width: 300px; max-width: 580px; position: relative; z-index: 1; }
.hero-brand { display: flex; align-items: center; justify-content: center; margin-bottom: 24px; }
.hero-logo { width: 140px; height: auto; filter: drop-shadow(0 0 30px rgba(30, 77, 123, 0.4)); flex-shrink: 0; animation: logoPulse 4s ease-in-out infinite; }
@keyframes logoPulse {
  0%, 100% { filter: drop-shadow(0 0 30px rgba(30, 77, 123, 0.4)) brightness(1); }
  50% { filter: drop-shadow(0 0 50px rgba(30, 77, 123, 0.6)) brightness(1.05); }
}

.hero-tagline {
  font-size: clamp(1.2rem, 3vw, 1.6rem);
  background: linear-gradient(135deg, #3b82f6, #d4a843, #eab308);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 700;
  margin-bottom: 20px;
  background-size: 200% 200%;
  animation: gradientShift 6s ease-in-out infinite;
}
@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  33% { background-position: 100% 0%; }
  66% { background-position: 50% 100%; }
}

.hero-description { font-size: 1.1rem; color: var(--text-muted); max-width: 460px; margin: 0 auto 36px; line-height: 1.65; }

img.emoji { height: 1em; width: 1em; margin: 0 .05em 0 .1em; vertical-align: -0.1em; display: inline; }
.hero-badge { margin-top: 28px; font-size: 0.85rem; color: rgba(255, 255, 255, 0.5); letter-spacing: 0.04em; }

.hero-scroll-link {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  margin: 24px auto 0;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
  padding: 12px 20px;
  min-height: 44px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 100px;
  transition: all var(--transition);
  letter-spacing: 0.02em;
  width: fit-content;
}
.hero-scroll-link:hover { color: var(--text-light); border-color: rgba(59, 130, 246, 0.3); background: rgba(30, 77, 123, 0.1); }
.hero-scroll-link .scroll-arrow-down { display: inline-block; transition: transform var(--transition); }
.hero-scroll-link:hover .scroll-arrow-down { transform: translateY(3px); }
.hero-scroll-link:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }

/* ========== BUTTONS ========== */
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }
.btn { display: inline-block; padding: 16px 32px; border-radius: var(--border-radius); font-size: 1.1rem; font-weight: 600; transition: transform var(--transition), box-shadow var(--transition); cursor: pointer; border: none; touch-action: manipulation; }
.btn-primary {
  background: linear-gradient(135deg, #1e4d7b, #3b82f6);
  color: var(--text-light);
  box-shadow: 0 4px 20px rgba(30, 77, 123, 0.35);
  position: relative;
  z-index: 1;
  overflow: hidden;
}
.btn-primary::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, #3b82f6, #1e4d7b); border-radius: inherit; opacity: 0; z-index: -1; transition: opacity var(--transition); }
.btn-primary::after { content: ''; position: absolute; inset: -2px; border-radius: inherit; background: linear-gradient(135deg, #1e4d7b, #d4a843, #1e4d7b); background-size: 200% 200%; z-index: -2; animation: btnGlow 3s ease-in-out infinite; opacity: 0; transition: opacity var(--transition); }
@keyframes btnGlow { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }
.btn-primary:hover { transform: translateY(-3px) scale(1.02); box-shadow: 0 8px 30px rgba(30, 77, 123, 0.5); }
.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover::after { opacity: 1; }
.btn-primary:active { transform: translateY(-1px) scale(0.98); }
.btn-large { padding: 20px 48px; font-size: 1.25rem; }

/* ========== CHAT MOCKUP ========== */
.hero-chat-mockup { flex: 1; min-width: 280px; max-width: 380px; text-align: left; background: rgba(255, 255, 255, 0.05); border-radius: 20px; border: 1px solid rgba(255, 255, 255, 0.08); overflow: hidden; backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2); position: relative; z-index: 1; }
.chat-header { display: flex; align-items: center; gap: 10px; padding: 14px 16px; background: rgba(255, 255, 255, 0.06); border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.chat-header-avatar { width: 32px; height: 32px; border-radius: 50%; overflow: hidden; flex-shrink: 0; box-shadow: 0 0 0 2px rgba(30, 77, 123, 0.3); }
.chat-header-avatar img { width: 100%; height: 100%; object-fit: cover; border-radius: 50%; }
.chat-header-info { flex: 1; }
.chat-header-name { font-size: 0.85rem; font-weight: 600; color: var(--text-light); }
.chat-header-status { font-size: 0.7rem; color: rgba(255, 255, 255, 0.4); letter-spacing: 0.05em; }
.chat-body { padding: 16px; }
.chat-bubble { padding: 11px 16px; border-radius: 18px; margin-bottom: 10px; font-size: 0.9rem; max-width: 85%; animation: chatFadeIn 0.5s ease-out backwards; }
.chat-bubble:nth-child(1) { animation-delay: 0.2s; }
.chat-bubble:nth-child(2) { animation-delay: 0.6s; }
.chat-bubble:nth-child(3) { animation-delay: 1.0s; }
.chat-bubble:nth-child(4) { animation-delay: 1.4s; }
.chat-bubble-user { background: linear-gradient(135deg, #1e4d7b, #3b82f6); color: var(--text-light); margin-left: auto; border-bottom-right-radius: 4px; }
.chat-bubble-bot { background: rgba(255, 255, 255, 0.08); color: var(--text-light); border-bottom-left-radius: 4px; backdrop-filter: blur(12px); border: 1px solid rgba(255, 255, 255, 0.06); }
@keyframes chatFadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ========== FEATURES ========== */
.features { padding: 96px 0; background: var(--surface-alt); position: relative; }
.features-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.feature-card { background: var(--surface); padding: 32px 24px; border-radius: 16px; text-align: center; box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 4px 12px rgba(0, 0, 0, 0.04); position: relative; transition: transform var(--transition), box-shadow var(--transition); border: 1px solid rgba(0, 0, 0, 0.04); overflow: hidden; }
.feature-card::before { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, #1e4d7b, #3b82f6); opacity: 0; transition: opacity var(--transition), height var(--transition); }
.feature-card::after { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse at 50% 0%, rgba(30, 77, 123, 0.03) 0%, transparent 70%); opacity: 0; transition: opacity var(--transition); pointer-events: none; }
.feature-card:hover { transform: translateY(-8px); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.08), 0 4px 12px rgba(0, 0, 0, 0.04); border-color: rgba(30, 77, 123, 0.2); }
.feature-card:hover::before { opacity: 1; height: 4px; }
.feature-card:hover::after { opacity: 1; }
.feature-icon { font-size: 48px; line-height: 1; margin-bottom: 16px; display: inline-block; transition: transform var(--transition); }
.feature-icon img.emoji { width: 48px; height: 48px; vertical-align: middle; }
.chat-bubble img.emoji { width: 1.1em; height: 1.1em; vertical-align: middle; }
.feature-card:hover .feature-icon { transform: scale(1.15); }
.feature-card:hover .feature-icon img.emoji { transform: scale(1.15); }
.feature-card h3 { font-size: 1.15rem; margin-bottom: 8px; color: var(--text-dark); }
.feature-card p { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.6; }
.feature-badge { display: inline-block; font-size: 0.6rem; font-weight: 700; background: linear-gradient(135deg, #1e4d7b, #d4a843); color: var(--text-light); padding: 2px 7px; border-radius: 20px; vertical-align: middle; margin-left: 5px; letter-spacing: 0.03em; }
@media (prefers-color-scheme: dark) {
  .feature-card { border-color: rgba(255, 255, 255, 0.04); box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2), 0 4px 12px rgba(0, 0, 0, 0.15); }
  .feature-card:hover { border-color: rgba(30, 77, 123, 0.25); box-shadow: 0 16px 40px rgba(0, 0, 0, 0.3), 0 4px 12px rgba(0, 0, 0, 0.2); }
}

/* ========== HOW TO / STEPS ========== */
.how-to { padding: 96px 0; background: var(--surface); }
.steps { display: flex; align-items: flex-start; justify-content: center; gap: 24px; flex-wrap: wrap; }
.step { flex: 1; min-width: 220px; max-width: 300px; text-align: center; }
.step-number { width: 56px; height: 56px; line-height: 56px; text-align: center; border-radius: 50%; font-size: 1.5rem; margin: 0 auto 16px; color: var(--text-light); position: relative; }
.step-number img.emoji { width: 32px; height: 32px; vertical-align: middle; }
.step-number-1 { background: linear-gradient(135deg, #1e4d7b, #3b82f6); box-shadow: 0 4px 16px rgba(30, 77, 123, 0.35); }
.step-number-2 { background: linear-gradient(135deg, #d4a843, #b8941f); box-shadow: 0 4px 16px rgba(212, 168, 67, 0.35); }
.step-number-3 { background: linear-gradient(135deg, #60a5fa, #93c5fd); box-shadow: 0 4px 16px rgba(96, 165, 250, 0.35); }
.step-number-1::after, .step-number-2::after, .step-number-3::after { content: ''; position: absolute; inset: -3px; border-radius: 50%; z-index: -1; opacity: 0.5; animation: stepPulse 3s ease-in-out infinite; }
.step-number-1::after { background: rgba(30, 77, 123, 0.4); }
.step-number-2::after { background: rgba(212, 168, 67, 0.4); }
.step-number-3::after { background: rgba(96, 165, 250, 0.4); }
@keyframes stepPulse { 0%, 100% { transform: scale(1); opacity: 0.5; } 50% { transform: scale(1.2); opacity: 0.2; } }
.step h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--text-dark); }
.step p { font-size: 0.95rem; color: var(--text-secondary); line-height: 1.6; }
.step-arrow { font-size: 2rem; background: linear-gradient(135deg, #1e4d7b, #d4a843); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; padding-top: 40px; font-weight: 300; animation: arrowBounce 2s ease-in-out infinite; }
@keyframes arrowBounce { 0%, 100% { transform: translateX(0); } 50% { transform: translateX(6px); } }

/* ========== COMMANDS ========== */
.commands { padding: 96px 0; background: var(--surface-alt); }
.commands-grid-wrapper { position: relative; overflow: hidden; max-height: 210px; transition: max-height 0.6s cubic-bezier(0.22, 1, 0.36, 1); }
.commands-grid-wrapper::after { content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 48px; background: linear-gradient(transparent, var(--surface-alt)); pointer-events: none; transition: opacity 0.4s ease; }
.commands-grid-wrapper.expanded { max-height: 2000px; }
.commands-grid-wrapper.expanded::after { opacity: 0; }
.commands-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; max-width: 900px; margin: 0 auto; }
.command-card { background: var(--surface); padding: 20px; border-radius: 12px; border: 1px solid rgba(0, 0, 0, 0.04); transition: transform var(--transition), box-shadow var(--transition); }
.command-card:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06); }
.command-card-highlight { grid-column: 1 / -1; background: linear-gradient(135deg, rgba(30, 77, 123, 0.05), rgba(212, 168, 67, 0.05)); border-color: rgba(30, 77, 123, 0.1); text-align: center; transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition); }
.command-card-highlight:hover { transform: translateY(-4px); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06); border-color: rgba(30, 77, 123, 0.25); }
.command-example { font-size: 0.95rem; font-weight: 600; color: var(--accent); margin-bottom: 6px; }
.command-example code { background: transparent; padding: 0; font-weight: 600; color: var(--accent); }
.command-card p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.5; margin: 0; }

/* Hidden cards stagger reveal */
.command-card:nth-child(n+9) { opacity: 0; transform: translateY(10px); transition: opacity 0.45s ease, transform 0.45s ease; }
.commands-grid-wrapper.expanded .command-card:nth-child(n+9) { opacity: 1; transform: translateY(0); }

.show-more-btn { display: flex; align-items: center; justify-content: center; gap: 8px; margin: 20px auto 0; padding: 14px 28px; min-height: 44px; border: 1px solid rgba(0,0,0,0.06); border-radius: 10px; background: var(--surface); cursor: pointer; font-size: 0.9rem; color: var(--accent); font-weight: 500; transition: background 0.2s, border-color 0.2s, box-shadow 0.2s; user-select: none; -webkit-tap-highlight-color: transparent; }
.show-more-btn:hover { background: var(--surface-alt); border-color: rgba(30,77,123,0.2); box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.show-more-btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.show-more-arrow { display: inline-block; transition: transform 0.35s ease; font-size: 0.85rem; }
.show-more-btn.expanded .show-more-arrow { transform: rotate(180deg); }
@media (prefers-color-scheme: dark) {
  .show-more-btn { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.06); color: var(--accent-sky); }
  .show-more-btn:hover { background: rgba(255,255,255,0.08); border-color: rgba(30,77,123,0.3); box-shadow: 0 2px 8px rgba(0,0,0,0.3); }
}
@media (prefers-color-scheme: dark) {
  .command-card { border-color: rgba(255, 255, 255, 0.04); box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2); }
  .command-card:hover { border-color: rgba(30, 77, 123, 0.25); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3); }
  .command-card-highlight { border-color: rgba(30, 77, 123, 0.2); background: linear-gradient(135deg, rgba(30, 77, 123, 0.12), rgba(212, 168, 67, 0.12)); }
  .command-card-highlight:hover { border-color: rgba(30, 77, 123, 0.4); box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3); }
  .command-example, .command-example code { color: var(--accent-sky); }
}

/* ========== FAQ ========== */
.faq { padding: 96px 0; background: var(--surface-alt); }
.faq-list { max-width: 680px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: var(--surface); border-radius: 14px; border: 1px solid rgba(0, 0, 0, 0.04); overflow: hidden; transition: box-shadow var(--transition), border-color var(--transition); }
.faq-item[open] { box-shadow: 0 4px 20px rgba(30, 77, 123, 0.08); border-color: rgba(30, 77, 123, 0.15); }
.faq-question { padding: 18px 20px; font-size: 1rem; font-weight: 600; color: var(--text-dark); cursor: pointer; list-style: none; display: flex; align-items: center; justify-content: space-between; gap: 12px; user-select: none; transition: color var(--transition); touch-action: manipulation; }
.faq-item[open] .faq-question { color: var(--accent); }
.faq-question::-webkit-details-marker { display: none; }
.faq-question:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; border-radius: 14px; }
.faq-question::after { content: '+'; font-size: 1.3rem; font-weight: 400; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; transition: transform var(--transition); flex-shrink: 0; }
.faq-item[open] .faq-question::after { transform: rotate(45deg); }
.faq-answer { padding: 0 20px 18px; font-size: 0.95rem; color: var(--text-secondary); line-height: 1.65; }
.faq-answer a { color: var(--accent); font-weight: 500; }
.faq-answer a:hover { text-decoration: underline; }
@media (prefers-color-scheme: dark) {
  .faq-item { border-color: rgba(255, 255, 255, 0.04); }
  .faq-item[open] { border-color: rgba(30, 77, 123, 0.25); box-shadow: 0 4px 20px rgba(30, 77, 123, 0.12); }
}

/* ========== CTA ========== */
.cta-section { padding: 96px 24px; background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary) 30%, var(--primary-light) 60%, #0f2a4a 80%, var(--primary-light) 100%); text-align: center; position: relative; overflow: hidden; }
.cta-section::before { content: ''; position: absolute; inset: 0; background: radial-gradient(ellipse 60% 50% at 50% 50%, rgba(30, 77, 123, 0.08) 0%, transparent 70%); pointer-events: none; }
.cta-blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.2; pointer-events: none; }
.cta-blob-1 { width: 400px; height: 400px; background: radial-gradient(circle, #1e4d7b 0%, transparent 70%); top: -150px; left: -100px; animation: floatBlob 20s ease-in-out infinite; }
.cta-blob-2 { width: 300px; height: 300px; background: radial-gradient(circle, #d4a843 0%, transparent 70%); bottom: -80px; right: -60px; animation: floatBlob 18s ease-in-out infinite 2s; }
.cta-title { font-size: clamp(1.75rem, 4vw, 2.5rem); color: var(--text-light); margin-bottom: 16px; position: relative; z-index: 1; }
.cta-subtitle { font-size: 1.15rem; color: var(--text-muted); margin-bottom: 40px; position: relative; z-index: 1; }
.cta-footnote { margin-top: 24px; color: rgba(255, 255, 255, 0.65); font-size: 0.9rem; position: relative; z-index: 1; }

/* ========== FOOTER ========== */
.footer { background: var(--footer-bg); padding: 32px 24px; color: var(--text-muted); font-size: 0.9rem; border-top: 1px solid rgba(30, 77, 123, 0.08); }
.footer-grid { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.footer-col-right { text-align: right; }
.footer a { transition: color var(--transition), transform 0.2s ease; display: inline-flex; align-items: center; gap: 6px; min-height: 44px; padding: 8px 0; }
.footer a:hover { color: var(--accent); transform: translateY(-1px); }
.footer a svg, .footer a img.twemoji, .footer a i { transition: transform 0.2s ease; width: 16px; height: 16px; }
.footer a:hover svg, .footer a:hover img.twemoji, .footer a:hover i { transform: scale(1.15); }
.footer-sep { padding: 0 8px; color: rgba(255, 255, 255, 0.1); }

/* ========== SKIP TO CONTENT ========== */
.skip-link { position: absolute; top: -100%; left: 0; z-index: 100; padding: 12px 24px; background: var(--accent); color: var(--text-light); font-size: 1rem; font-weight: 600; border-radius: 0 0 8px 0; transition: top 0.2s ease; text-decoration: none; }
.skip-link:focus { top: 0; outline: 2px solid var(--text-light); outline-offset: 2px; }

/* ========== REDUCED MOTION ========== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
  .hero-logo { animation: none !important; }
  .hero-tagline { animation: none !important; background-size: 100% 100% !important; }
}

/* ========== FADE IN ========== */
.fade-in { opacity: 0; transform: translateY(24px); transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1); }
.fade-in.visible { opacity: 1; transform: translateY(0); }

/* ========== RESPONSIVE ========== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .commands-grid-wrapper { max-height: 250px; }
  .commands-grid { grid-template-columns: repeat(2, 1fr); }
  .steps { flex-direction: column; align-items: center; }
  .step-arrow { transform: rotate(90deg); padding-top: 0; animation: arrowBounceVertical 2s ease-in-out infinite; }
  @keyframes arrowBounceVertical { 0%, 100% { transform: translateY(0) rotate(90deg); } 50% { transform: translateY(6px) rotate(90deg); } }
  .hero-chat-mockup { display: none; }
  .features, .how-to, .commands, .faq, .cta-section { padding: 64px 0; }
  .section-title { margin-bottom: 36px; }
  .hero-blob-1 { width: 350px; height: 350px; }
  .hero-blob-2 { width: 280px; height: 280px; }
  .hero-blob-3, .hero-blob-4 { display: none; }
}

@media (max-width: 768px) {
  .features-grid, .commands-grid { grid-template-columns: 1fr; gap: 14px; }
  .commands-grid-wrapper { max-height: 200px; }
  .hero { padding: 48px 16px; gap: 0; min-height: 90vh; }
  .hero-content { min-width: 0; }
  .hero-logo { width: 100px; }
  .hero-description { max-width: none; margin-left: 0; margin-right: 0; }
  .btn, .btn-large { padding: 16px 28px; font-size: 1rem; width: 100%; max-width: 320px; }
  .btn-large { font-size: 1.05rem; }
  .container { padding: 0 16px; }
  .features, .how-to, .commands, .faq, .cta-section { padding: 48px 0; }
  .section-title { font-size: clamp(1.4rem, 5vw, 1.75rem); margin-bottom: 28px; padding-bottom: 12px; }
  .feature-card { padding: 24px 20px; }
  .feature-card h3 { font-size: 1.05rem; }
  .step { min-width: 0; max-width: 280px; }
  .step-number { width: 48px; height: 48px; line-height: 48px; font-size: 1.3rem; }
  .faq-list { gap: 10px; }
  .faq-question { padding: 14px 16px; font-size: 0.95rem; }
  .faq-answer { padding: 0 16px 14px; font-size: 0.9rem; }
  .footer-grid { flex-direction: column; text-align: center; gap: 8px; }
  .footer-col-right { text-align: center; }
  .hero-scroll-link { margin-top: 16px; font-size: 0.85rem; }
  .hero-badge { margin-top: 20px; }
  .hero-blob-1, .hero-blob-2 { opacity: 0.15; }
}

@media (max-width: 400px) {
  .container { padding: 0 12px; }
  .hero-logo { width: 80px; }
  .hero-tagline { font-size: 1rem; }
  .hero-description { font-size: 0.95rem; margin-bottom: 28px; }
  .btn, .btn-large { padding: 14px 24px; font-size: 0.95rem; }
  .feature-icon { font-size: 36px; }
  .step { max-width: 240px; }
  .commands-grid { grid-template-columns: 1fr; }
}