/* ═══════════════════════════════════════════════════
   BigBro AI — Redesigned Website Styles
   Deep navy + cyan accent, modern glassmorphism
   ═══════════════════════════════════════════════════ */

:root {
  --bg-deep:    #050d1a;
  --bg-main:    #0a1628;
  --bg-card:    #0f1e38;
  --bg-surface: #142240;
  --cyan:       #00BFFF;
  --cyan-20:    rgba(0,191,255,.20);
  --cyan-08:    rgba(0,191,255,.08);
  --blue:       #339DFF;
  --purple:     #7C5CFC;
  --gold:       #FFD700;
  --green:      #4CAF50;
  --pink:       #FF69B4;
  --orange:     #FF6B35;
  --text:       #E8EAF0;
  --text-dim:   #8E99A8;
  --font:       'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius:     16px;
  --radius-sm:  10px;
}

/* ─── Reset ─── */
*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  font-family: var(--font);
  background: var(--bg-deep);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width:100%; display:block; }
a { text-decoration:none; color:inherit; }
em { font-style:normal; color:var(--cyan); }

.container { max-width:1140px; margin:0 auto; padding:0 24px; }

/* ─── Pill Badge ─── */
.pill {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 50px;
  background: var(--cyan-08);
  border: 1px solid var(--cyan-20);
  color: var(--cyan);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .5px;
}

/* ═══════════════ NAVBAR ═══════════════ */
.nav {
  position: fixed; top:0; left:0; right:0; z-index:100;
  background: rgba(5,13,26,.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(0,191,255,.08);
}
.nav-inner { display:flex; align-items:center; justify-content:space-between; height:68px; }
.nav-brand { display:flex; align-items:center; gap:10px; font-weight:700; font-size:1.15rem; color:var(--text); }
.nav-logo { width:38px; height:38px; border-radius:10px; }
.nav-links { display:flex; align-items:center; gap:28px; }
.nav-links a { font-size:.88rem; font-weight:500; color:var(--text-dim); transition:color .2s; }
.nav-links a:hover { color:var(--cyan); }
.nav-cta {
  background: var(--cyan);
  color: #000 !important;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 700;
  transition: box-shadow .2s, transform .15s;
}
.nav-cta:hover { box-shadow:0 0 24px rgba(0,191,255,.5); transform:translateY(-1px); }

/* Mobile toggle */
.nav-toggle { display:none; flex-direction:column; gap:5px; background:none; border:none; cursor:pointer; padding:8px; }
.nav-toggle span { width:24px; height:2px; background:var(--text); border-radius:2px; transition:transform .2s; }

/* ═══════════════ HERO ═══════════════ */
.hero {
  position: relative;
  padding: 140px 0 80px;
  overflow: hidden;
  min-height: 90vh;
  display: flex;
  align-items: center;
}
.hero-glow {
  position:absolute; top:-200px; left:-200px; width:600px; height:600px;
  background:radial-gradient(circle, rgba(0,191,255,.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-glow-right {
  position:absolute; bottom:-100px; right:-200px; width:500px; height:500px;
  background:radial-gradient(circle, rgba(124,92,252,.10) 0%, transparent 70%);
  pointer-events: none;
}
.hero-grid { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.hero-left h1 {
  font-size: 3.4rem;
  font-weight: 900;
  line-height: 1.12;
  margin: 20px 0 18px;
  letter-spacing: -1px;
}
.hero-desc { font-size:1.12rem; color:var(--text-dim); line-height:1.7; max-width:480px; }
.hero-actions { margin:32px 0 28px; }

/* Glow Button */
.btn-glow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #000;
  font-weight: 800;
  font-size: .95rem;
  border-radius: 50px;
  transition: box-shadow .3s, transform .15s;
  box-shadow: 0 4px 30px rgba(0,191,255,.30);
}
.btn-glow:hover { box-shadow:0 6px 40px rgba(0,191,255,.55); transform:translateY(-2px); }
.btn-glow-lg { padding:16px 40px; font-size:1.05rem; }

/* Hero Metrics */
.hero-metrics { display:flex; align-items:center; gap:20px; }
.metric { text-align:center; }
.metric strong { display:block; font-size:1.5rem; font-weight:800; color:var(--cyan); }
.metric span { font-size:.75rem; color:var(--text-dim); text-transform:uppercase; letter-spacing:1px; }
.metric-sep { width:1px; height:36px; background:rgba(255,255,255,.12); }

/* Phone Mockup */
.hero-right { display:flex; justify-content:center; }
.phone {
  width: 280px;
  border-radius: 32px;
  background: var(--bg-card);
  border: 2px solid rgba(0,191,255,.15);
  box-shadow: 0 20px 80px rgba(0,191,255,.12), 0 0 0 1px rgba(255,255,255,.05) inset;
  overflow: hidden;
  position: relative;
}
.phone-notch {
  width: 100px; height: 24px; background: var(--bg-deep);
  border-radius: 0 0 16px 16px; margin: 0 auto;
}
.phone-header {
  display:flex; align-items:center; gap:10px; padding:14px 18px;
  border-bottom: 1px solid rgba(255,255,255,.06);
}
.phone-avatar { width:36px; height:36px; border-radius:50%; }
.phone-name { font-weight:700; font-size:.85rem; }
.phone-status { font-size:.7rem; color:var(--green); }
.phone-chat { padding:16px; display:flex; flex-direction:column; gap:10px; min-height:240px; }
.bubble {
  padding: 10px 14px;
  border-radius: 16px;
  font-size: .8rem;
  line-height: 1.5;
  max-width: 85%;
  animation: fadeUp .4s ease both;
}
.bubble.ai {
  background: var(--bg-surface);
  border: 1px solid rgba(0,191,255,.1);
  align-self: flex-start;
  border-bottom-left-radius: 4px;
}
.bubble.user {
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color: #000;
  font-weight: 500;
  align-self: flex-end;
  border-bottom-right-radius: 4px;
}
.bubble.typing { display:flex; gap:5px; align-items:center; padding:12px 18px; }
.dot {
  width:7px; height:7px; border-radius:50%; background:var(--cyan);
  animation: blink 1.4s infinite both;
}
.dot:nth-child(2) { animation-delay:.2s; }
.dot:nth-child(3) { animation-delay:.4s; }

/* Floating Emojis */
.float-emojis { position:absolute; top:0; left:0; width:100%; height:100%; pointer-events:none; overflow:hidden; }
.float-emojis span {
  position:absolute; left:var(--x); bottom:-40px; font-size:1.5rem;
  animation: floatUp var(--d) ease-in-out infinite;
  opacity:.3;
}

/* ═══════════════ TRUST BAR ═══════════════ */
.trust-bar { padding:40px 0; border-top:1px solid rgba(255,255,255,.04); border-bottom:1px solid rgba(255,255,255,.04); background:var(--bg-main); }
.trust-inner { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.trust-item { display:flex; align-items:center; gap:14px; }
.trust-icon { font-size:1.8rem; }
.trust-item strong { display:block; font-size:.88rem; color:var(--text); }
.trust-item span { font-size:.75rem; color:var(--text-dim); }

/* ═══════════════ SECTION HEAD ═══════════════ */
.section-head { text-align:center; max-width:640px; margin:0 auto 56px; }
.section-head h2 { font-size:2.4rem; font-weight:800; line-height:1.15; margin:14px 0 12px; }
.section-head p { color:var(--text-dim); font-size:1.05rem; }

/* ═══════════════ FEATURES ═══════════════ */
.features { padding:100px 0; }
.features-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.feat {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 28px 22px;
  transition: transform .25s, border-color .25s, box-shadow .25s;
  position: relative;
  overflow: hidden;
}
.feat::before {
  content:''; position:absolute; top:0; left:0; right:0; height:3px;
  background:var(--accent); opacity:0; transition:opacity .25s;
}
.feat:hover { transform:translateY(-6px); border-color:var(--accent); box-shadow:0 12px 40px rgba(0,0,0,.3); }
.feat:hover::before { opacity:1; }
.feat-ico { font-size:2rem; margin-bottom:14px; }
.feat h3 { font-size:1rem; font-weight:700; margin-bottom:8px; }
.feat p { font-size:.82rem; color:var(--text-dim); line-height:1.6; }

/* ═══════════════ HOW IT WORKS ═══════════════ */
.how { padding:100px 0; background:var(--bg-main); }
.steps-row { display:flex; align-items:center; justify-content:center; gap:0; }
.step-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 36px 28px;
  text-align: center;
  width: 260px;
  position: relative;
}
.step-n {
  position:absolute; top:-16px; left:50%; transform:translateX(-50%);
  width:34px; height:34px; display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, var(--cyan), var(--blue));
  color:#000; font-weight:800; font-size:.9rem; border-radius:50%;
}
.step-visual { font-size:2.4rem; margin:12px 0 16px; }
.step-card h3 { font-size:1rem; font-weight:700; margin-bottom:8px; }
.step-card p { font-size:.82rem; color:var(--text-dim); line-height:1.5; }
.step-connector { width:60px; color:var(--text-dim); flex-shrink:0; }

/* ═══════════════ VIBES / PERSONALITIES ═══════════════ */
.vibes { padding:100px 0; }
.vibes-grid { display:grid; grid-template-columns:repeat(4,1fr); gap:20px; }
.vibe-card {
  border-radius: var(--radius);
  padding: 32px 22px;
  text-align: center;
  border: 1px solid rgba(255,255,255,.06);
  transition: transform .25s, box-shadow .25s;
  position: relative;
  overflow: hidden;
}
.vibe-card:hover { transform:translateY(-6px); box-shadow:0 12px 40px rgba(0,0,0,.3); }
.vibe-emoji { font-size:2.4rem; margin-bottom:14px; }
.vibe-card h3 { font-size:1.05rem; font-weight:700; margin-bottom:8px; }
.vibe-card p { font-size:.82rem; color:var(--text-dim); line-height:1.5; }
.vibe-tag {
  display:inline-block; margin-top:16px; padding:4px 14px; border-radius:50px;
  font-size:.7rem; font-weight:700; letter-spacing:.5px; text-transform:uppercase;
}

/* Vibe Colors */
.vibe-caring    { background: rgba(0,191,255,.06); }
.vibe-caring .vibe-tag { background:rgba(0,191,255,.15); color:var(--cyan); }
.vibe-strict    { background: rgba(255,107,53,.06); }
.vibe-strict .vibe-tag { background:rgba(255,107,53,.15); color:var(--orange); }
.vibe-playful   { background: rgba(255,105,180,.06); }
.vibe-playful .vibe-tag { background:rgba(255,105,180,.15); color:var(--pink); }
.vibe-motivational { background: rgba(255,215,0,.06); }
.vibe-motivational .vibe-tag { background:rgba(255,215,0,.15); color:var(--gold); }

/* ═══════════════ QUOTE ═══════════════ */
.quote-section { padding:80px 0; background:var(--bg-main); }
.quote-card {
  max-width:700px; margin:0 auto; text-align:center;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,.06);
  border-radius: var(--radius);
  padding: 48px 40px;
  position: relative;
}
.quote-marks {
  font-size:5rem; line-height:1; color:var(--cyan); opacity:.3;
  position:absolute; top:16px; left:32px; font-family:Georgia,serif;
}
.quote-text { font-size:1.15rem; line-height:1.7; font-style:italic; color:var(--text); margin-bottom:16px; }
.quote-author { font-size:.85rem; color:var(--cyan); font-weight:600; }

/* ═══════════════ DOWNLOAD CTA ═══════════════ */
.download { padding:100px 0; }
.dl-card {
  position:relative; border-radius:24px; overflow:hidden;
  background: linear-gradient(135deg, var(--bg-card), var(--bg-surface));
  border: 1px solid rgba(0,191,255,.12);
  box-shadow: 0 20px 80px rgba(0,191,255,.08);
}
.dl-glow {
  position:absolute; top:50%; left:50%; width:600px; height:600px;
  transform:translate(-50%,-50%);
  background:radial-gradient(circle, rgba(0,191,255,.10) 0%, transparent 60%);
  pointer-events:none;
}
.dl-content { position:relative; text-align:center; padding:70px 40px; }
.dl-content h2 { font-size:2.4rem; font-weight:800; margin-bottom:14px; }
.dl-content > p { color:var(--text-dim); font-size:1.05rem; margin-bottom:32px; }
.dl-badges { display:flex; justify-content:center; gap:24px; margin-top:24px; font-size:.82rem; color:var(--text-dim); }

/* ═══════════════ FOOTER ═══════════════ */
.footer { padding:60px 0 0; border-top:1px solid rgba(255,255,255,.04); background:var(--bg-deep); }
.footer-top { display:grid; grid-template-columns:2fr 1fr 1fr 1fr; gap:40px; padding-bottom:40px; }
.footer-brand p { margin-top:12px; font-size:.85rem; color:var(--text-dim); line-height:1.6; }
.footer-col h4 { font-size:.78rem; text-transform:uppercase; letter-spacing:1.5px; color:var(--text-dim); margin-bottom:16px; }
.footer-col a { display:block; font-size:.88rem; color:var(--text-dim); margin-bottom:10px; transition:color .2s; }
.footer-col a:hover { color:var(--cyan); }
.footer-bottom { padding:20px 0; border-top:1px solid rgba(255,255,255,.06); text-align:center; font-size:.78rem; color:var(--text-dim); }

/* ═══════════════ ANIMATIONS ═══════════════ */
@keyframes fadeUp { from { opacity:0; transform:translateY(12px); } to { opacity:1; transform:translateY(0); } }
@keyframes blink { 0%,80%,100%{ opacity:.3;} 40%{ opacity:1;} }
@keyframes floatUp {
  0% { transform:translateY(0); opacity:.3; }
  50% { opacity:.5; }
  100% { transform:translateY(-100vh); opacity:0; }
}

/* ═══════════════ RESPONSIVE ═══════════════ */
@media(max-width:900px) {
  .hero-grid { grid-template-columns:1fr; text-align:center; gap:40px; }
  .hero-left h1 { font-size:2.4rem; }
  .hero-desc { margin:0 auto; }
  .hero-actions { display:flex; justify-content:center; }
  .hero-metrics { justify-content:center; }
  .features-grid { grid-template-columns:repeat(2,1fr); }
  .vibes-grid { grid-template-columns:repeat(2,1fr); }
  .trust-inner { grid-template-columns:repeat(2,1fr); }
  .footer-top { grid-template-columns:1fr 1fr; }
  .steps-row { flex-direction:column; gap:20px; }
  .step-connector { transform:rotate(90deg); width:40px; height:20px; }
}

@media(max-width:600px) {
  .nav-links { display:none; position:fixed; top:68px; left:0; right:0; background:rgba(5,13,26,.96); backdrop-filter:blur(20px); flex-direction:column; padding:24px; gap:16px; border-bottom:1px solid rgba(0,191,255,.1); }
  .nav-links.open { display:flex; }
  .nav-toggle { display:flex; }
  .hero { padding:110px 0 60px; min-height:auto; }
  .hero-left h1 { font-size:2rem; }
  .features-grid { grid-template-columns:1fr; }
  .vibes-grid { grid-template-columns:1fr; }
  .trust-inner { grid-template-columns:1fr; gap:16px; }
  .section-head h2 { font-size:1.7rem; }
  .dl-content { padding:48px 24px; }
  .dl-content h2 { font-size:1.7rem; }
  .footer-top { grid-template-columns:1fr; gap:24px; }
  .phone { width:240px; }
}