@import url("https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Outfit:wght@500;600;700;800;900&display=swap");

:root {
  /* ==========================================================================
     Premium Brilliant White & High-Voltage Electric Blue Color System
     ========================================================================== */
  --primary: #0052FF;
  --primary-dark: #003ECC;
  --primary-deep: #002B99;
  --primary-light: #38BDF8;
  --primary-soft: #EFF6FF;
  --primary-gradient: linear-gradient(135deg, #0052FF 0%, #0066FF 45%, #00D2FF 100%);
  --brand-gradient: linear-gradient(135deg, #0052FF 0%, #0066FF 50%, #0EA5E9 100%);
  --electric-glow: radial-gradient(circle at 50% 0%, rgba(0, 82, 255, 0.14) 0%, rgba(0, 210, 255, 0.04) 50%, transparent 80%);
  
  --secondary: #00D2FF;
  --secondary-dark: #0284C7;
  --accent: #10B981;
  --accent-soft: #ECFDF5;
  --accent-glow: #34D399;
  
  --whatsapp: #25D366;
  --whatsapp-dark: #128C7E;
  --whatsapp-deep: #075E54;
  --whatsapp-soft: #E7FCE8;
  --whatsapp-glow: rgba(37, 211, 102, 0.4);

  /* Clean High-Contrast Light Surfaces */
  --bg-page: #FFFFFF;
  --bg-subtle: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-card-glass: rgba(255, 255, 255, 0.88);
  --bg-blue-tint: #EFF6FF;
  --bg-blue-light: #F0F7FF;

  /* Typography & Text */
  --font-heading: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-body: "Plus Jakarta Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;

  --text-main: #0B132B;
  --text-heading: #0F172A;
  --text-muted: #334155;
  --text-light: #64748B;
  --border: #E2E8F0;
  --border-focus: #0052FF;
  --border-blue: rgba(0, 82, 255, 0.14);
  --border-card: rgba(0, 82, 255, 0.08);

  /* High-Impact Elevation Shadows & Electric Ambient Glows */
  --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 14px 34px -4px rgba(0, 82, 255, 0.12), 0 4px 12px -2px rgba(15, 23, 42, 0.04);
  --shadow-glow: 0 8px 25px -3px rgba(0, 82, 255, 0.35);
  --shadow-wa: 0 6px 22px -3px rgba(37, 211, 102, 0.38);
  --shadow-card: 0 4px 20px rgba(0, 82, 255, 0.06), 0 1px 4px rgba(15, 23, 42, 0.03);
  --shadow-card-hover: 0 18px 40px -6px rgba(0, 82, 255, 0.16), 0 6px 16px -2px rgba(15, 23, 42, 0.05);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 9999px;
}

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

html {
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: var(--bg-page);
  scroll-behavior: smooth;
  scroll-padding-top: 86px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

section[id], div[id], article[id] {
  scroll-margin-top: 86px;
}

body {
  line-height: 1.6;
  background-color: var(--bg-page);
  color: var(--text-main);
  overflow-x: hidden;
  position: relative;
}

/* Background Ambient Lighting */
body::before {
  content: "";
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 1400px;
  height: 600px;
  background: var(--electric-glow);
  pointer-events: none;
  z-index: 0;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: all 0.2s ease;
}

a:hover {
  color: var(--primary-dark);
}

img, svg {
  max-width: 100%;
  height: auto;
  display: block;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-heading);
  line-height: 1.22;
  letter-spacing: -0.02em;
  font-weight: 800;
}

h1 {
  font-size: clamp(2.4rem, 4.8vw, 3.8rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  margin-bottom: 1.2rem;
}

h2 {
  font-size: clamp(1.9rem, 3.2vw, 2.6rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 0.9rem;
}

h3 {
  font-size: clamp(1.25rem, 2vw, 1.45rem);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

p.lead {
  font-size: clamp(1.05rem, 1.8vw, 1.22rem);
  color: var(--text-muted);
  line-height: 1.65;
  margin-bottom: 1.8rem;
}

.gradient {
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline;
}

.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 1;
}

/* Skip link */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--primary);
  color: #fff;
  padding: 8px 16px;
  z-index: 9999;
  border-radius: 0 0 8px 0;
  transition: top 0.2s;
}
.skip-link:focus {
  top: 0;
}

/* ==========================================================================
   Header & Glassmorphism Navigation Bar
   ========================================================================== */
.nav {
  position: sticky;
  top: 0;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-blue);
  z-index: 1000;
  transition: all 0.25s ease;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--text-heading);
  letter-spacing: -0.02em;
}

.brand:hover {
  color: var(--primary);
}

.brand-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--primary-gradient);
  color: #FFFFFF;
  border-radius: 10px;
  font-weight: 900;
  font-size: 1.2rem;
  box-shadow: 0 4px 14px rgba(0, 82, 255, 0.3);
}

.nav-live-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  border: 1px solid rgba(16, 185, 129, 0.2);
  padding: 4px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 700;
  margin-left: 8px;
}

.live-pulse {
  width: 7px;
  height: 7px;
  background: #10B981;
  border-radius: 50%;
  box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
  animation: pulseGreen 1.8s infinite;
}

@keyframes pulseGreen {
  0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
  70% { transform: scale(1); box-shadow: 0 0 0 7px rgba(16, 185, 129, 0); }
  100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.4rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text-muted);
  padding: 6px 4px;
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--primary);
  background: var(--primary-soft);
  border-radius: var(--radius-sm);
}

.nav-links a.active {
  color: var(--primary);
  background: var(--primary-soft);
  font-weight: 800;
  border-radius: var(--radius-sm);
}

.nav-badge-hot {
  font-size: 0.68rem;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid rgba(0, 82, 255, 0.2);
  padding: 2px 6px;
  border-radius: var(--radius-pill);
  font-weight: 800;
  vertical-align: middle;
  margin-left: 3px;
}

.menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.6rem;
  cursor: pointer;
  color: var(--text-main);
  padding: 4px 8px;
}

/* ==========================================================================
   Buttons & CTA System
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 0.96rem;
  cursor: pointer;
  transition: all 0.22s cubic-bezier(0.16, 1, 0.3, 1);
  border: none;
  text-decoration: none;
  text-align: center;
  white-space: nowrap;
}

.btn-wa {
  background: #25D366;
  color: #FFFFFF !important;
  box-shadow: var(--shadow-wa);
}

.btn-wa:hover {
  background: #1eb956;
  transform: translateY(-2px);
  box-shadow: 0 8px 26px rgba(37, 211, 102, 0.48);
}

.btn-nav-wa {
  background: #25D366;
  color: #FFFFFF !important;
  padding: 9px 18px;
  font-size: 0.88rem;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.3);
}

.btn-nav-wa:hover {
  background: #1eb956;
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--primary-gradient);
  color: #FFFFFF !important;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 82, 255, 0.45);
}

.btn-outline {
  background: #FFFFFF;
  color: var(--primary) !important;
  border: 1.5px solid var(--border-blue);
  box-shadow: var(--shadow-sm);
}

.btn-outline:hover {
  border-color: var(--primary);
  background: var(--primary-soft);
  transform: translateY(-2px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-main);
}

.btn-ghost:hover {
  background: var(--bg-subtle);
}

/* ==========================================================================
   Hero Section & Interactive Device Simulator
   ========================================================================== */
.hero {
  padding: 4rem 0 3.5rem;
  position: relative;
  z-index: 1;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 3.5rem;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid rgba(0, 82, 255, 0.16);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  font-size: 0.84rem;
  font-weight: 700;
  margin-bottom: 1.2rem;
}

.eyebrow .dot {
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 50%;
  animation: pulseGreen 1.8s infinite;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1rem;
  margin-bottom: 2rem;
}

.stats {
  display: flex;
  align-items: center;
  gap: 2.2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--border);
}

.stat b {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
  color: var(--text-heading);
  line-height: 1.1;
}

.stat span {
  font-size: 0.82rem;
  color: var(--text-light);
  font-weight: 600;
}

/* --------------------------------------------------------------------------
   Phone Mockup & Interactive WhatsApp Simulator
   -------------------------------------------------------------------------- */
.phone-mockup {
  position: relative;
  max-width: 440px;
  margin: 0 auto;
  background: #FFFFFF;
  border-radius: 38px;
  border: 4px solid #0F172A;
  box-shadow: 0 25px 60px -12px rgba(0, 82, 255, 0.22), 0 10px 25px rgba(15, 23, 42, 0.08);
  overflow: hidden;
  transition: transform 0.3s ease;
}

.phone-mockup:hover {
  transform: translateY(-3px);
}

/* Camera Notch / Dynamic Island */
.phone-notch {
  width: 110px;
  height: 20px;
  background: #0F172A;
  border-radius: 0 0 14px 14px;
  margin: 0 auto;
  position: relative;
  z-index: 10;
}

/* WhatsApp Phone Header */
.phone-header {
  background: #075E54;
  background: linear-gradient(135deg, #075E54 0%, #128C7E 100%);
  color: #FFFFFF;
  padding: 10px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  z-index: 5;
}

.phone-header-user {
  display: flex;
  align-items: center;
  gap: 10px;
}

.phone-avatar {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #FFFFFF;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 900;
  font-size: 1.1rem;
  border: 2px solid #25D366;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

.phone-user-info b {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.92rem;
  color: #FFFFFF;
  line-height: 1.2;
}

.phone-verified-tick {
  width: 14px;
  height: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: #25D366;
  color: #FFFFFF;
  border-radius: 50%;
  font-size: 9px;
  font-weight: 900;
}

.phone-user-info span {
  font-size: 0.72rem;
  color: #A7F3D0;
  display: block;
}

.phone-header-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.phone-tag-badge {
  font-size: 0.7rem;
  background: rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-weight: 700;
}

/* Simulator Studio Chips */
.simulator-chips-wrap {
  background: #F0F4F8;
  padding: 8px 10px;
  border-bottom: 1px solid rgba(0, 82, 255, 0.08);
}

.simulator-chips-label {
  font-size: 0.72rem;
  color: var(--text-light);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 5px;
}

.simulator-chips {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 3px;
  scrollbar-width: none;
}
.simulator-chips::-webkit-scrollbar {
  display: none;
}

.chip-btn {
  background: #FFFFFF;
  color: var(--text-muted);
  border: 1px solid var(--border);
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.74rem;
  font-weight: 700;
  white-space: nowrap;
  cursor: pointer;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.chip-btn:hover {
  background: var(--primary-soft);
  color: var(--primary);
  border-color: var(--primary);
}

.chip-btn.active {
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
  box-shadow: 0 2px 8px rgba(0, 82, 255, 0.3);
}

/* WhatsApp Chat Window Body */
.simulator-chat-body {
  background: #EFEAE2;
  background-image: radial-gradient(#d4ccc3 1px, transparent 1px);
  background-size: 16px 16px;
  min-height: 380px;
  max-height: 420px;
  overflow-y: auto;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.86rem;
  scroll-behavior: smooth;
}

/* Chat Bubbles */
.bubble {
  max-width: 88%;
  padding: 9px 12px;
  border-radius: 12px;
  line-height: 1.45;
  position: relative;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.12);
  word-wrap: break-word;
  animation: fadeInBubble 0.25s ease-out;
}

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

.bubble.me {
  align-self: flex-end;
  background: #E7FCE8;
  color: #111827;
  border-top-right-radius: 2px;
}

.bubble.bot {
  align-self: flex-start;
  background: #FFFFFF;
  color: #1E293B;
  border-top-left-radius: 2px;
  border: 1px solid rgba(0, 0, 0, 0.04);
}

.bubble-time {
  font-size: 0.68rem;
  color: #64748B;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 3px;
  margin-top: 4px;
}

.blue-ticks {
  color: #38BDF8;
  font-weight: 900;
}

.msg-badge {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary);
  border: 1px solid rgba(0, 82, 255, 0.16);
  font-size: 0.72rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-bottom: 6px;
}

.tip-box {
  background: #F8FAFC;
  border-left: 3px solid var(--primary);
  padding: 6px 9px;
  border-radius: 4px;
  margin-top: 6px;
  font-size: 0.8rem;
}

.contrast-box {
  background: #F0F7FF;
  border: 1px solid rgba(0, 82, 255, 0.12);
  border-radius: 8px;
  padding: 6px 10px;
  margin: 6px 0;
  font-size: 0.8rem;
}
.contrast-wrong {
  color: #DC2626;
  margin-bottom: 3px;
}
.contrast-right {
  color: #059669;
  font-weight: 700;
}

.word-card {
  background: #F8FAFC;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 6px 8px;
  margin-top: 5px;
  font-size: 0.8rem;
  line-height: 1.5;
}

/* Voice Note Player Widget */
.vn-widget {
  background: #F1F5F9;
  border: 1px solid rgba(0, 82, 255, 0.12);
  border-radius: 24px;
  padding: 7px 12px;
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 6px 0;
}

.vn-play {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: #FFFFFF;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  transition: transform 0.2s;
  flex-shrink: 0;
}

.vn-play:hover {
  transform: scale(1.08);
}

.vn-wave {
  display: flex;
  align-items: center;
  gap: 2.5px;
  flex: 1;
  height: 20px;
}

.vn-wave span {
  width: 2.5px;
  height: 6px;
  background: #94A3B8;
  border-radius: 2px;
  transition: height 0.2s ease;
}

.vn-widget.is-playing .vn-wave span {
  background: var(--primary);
  animation: waveDance 1s infinite ease-in-out;
}

.vn-widget.is-playing .vn-wave span:nth-child(2n) { animation-delay: 0.2s; }
.vn-widget.is-playing .vn-wave span:nth-child(3n) { animation-delay: 0.35s; }
.vn-widget.is-playing .vn-wave span:nth-child(4n) { animation-delay: 0.15s; }

@keyframes waveDance {
  0%, 100% { height: 4px; }
  50% { height: 18px; }
}

.vn-time {
  font-size: 0.7rem;
  color: #64748B;
  font-weight: 700;
  flex-shrink: 0;
}

/* Typing Indicator */
.typing-bubble {
  display: none;
  align-self: flex-start;
  background: #FFFFFF;
  padding: 8px 14px;
  border-radius: 12px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.1);
  gap: 4px;
  align-items: center;
}

.typing-bubble.active {
  display: inline-flex;
}

.dot-pulse {
  width: 6px;
  height: 6px;
  background: #94A3B8;
  border-radius: 50%;
  animation: typingBounce 1.3s infinite ease-in-out;
}
.dot-pulse:nth-child(2) { animation-delay: 0.2s; }
.dot-pulse:nth-child(3) { animation-delay: 0.4s; }

@keyframes typingBounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1.1); opacity: 1; }
}

/* Simulator Footer Input */
.phone-footer {
  background: #F0F2F5;
  padding: 8px 10px;
  display: flex;
  align-items: center;
  gap: 8px;
  border-top: 1px solid rgba(0, 0, 0, 0.06);
}

.phone-input {
  flex: 1;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 8px 14px;
  font-size: 0.84rem;
  color: var(--text-main);
  outline: none;
  font-family: inherit;
}
.phone-input:focus {
  border-color: var(--primary);
}

.phone-send-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #25D366;
  color: #FFFFFF;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.95rem;
  transition: transform 0.15s;
}
.phone-send-btn:hover {
  transform: scale(1.08);
}

/* ==========================================================================
   Authority Ticker & Proof Bar
   ========================================================================== */
.authority-bar {
  background: #FFFFFF;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 1.3rem 0;
}

.authority-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.2rem;
}

.rating-badge {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rating-badge b {
  font-size: 0.95rem;
  color: var(--text-heading);
}

.board-pills {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.86rem;
  font-weight: 700;
  color: var(--primary);
}

.board-pills span {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

/* ==========================================================================
   Bento Grid: Intelligent AI Studios Showcase
   ========================================================================== */
.section {
  padding: 5rem 0;
  position: relative;
}

.section.alt {
  background: var(--bg-subtle);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-kicker {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 0.5rem;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.6rem;
  margin-top: 2.5rem;
}

.bento-card {
  background: #FFFFFF;
  border: 1px solid var(--border-card);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  transition: all 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.bento-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(0, 82, 255, 0.2);
}

.bento-col-8 { grid-column: span 8; }
.bento-col-4 { grid-column: span 4; }
.bento-col-6 { grid-column: span 6; }
.bento-col-12 { grid-column: span 12; }

.bento-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
}

.bento-card h3 {
  font-size: 1.35rem;
  margin-bottom: 0.6rem;
}

.bento-card p {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Bento Mini Visual Previews */
.bento-preview {
  margin-top: 1.4rem;
  background: #F8FAFC;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1rem;
  font-size: 0.85rem;
}

.preview-badge-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  font-size: 0.74rem;
  font-weight: 700;
  color: var(--primary);
}

.preview-tag {
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  font-weight: 700;
}

/* ==========================================================================
   Comparison Matrix: AI Study Guru vs Tuition vs Generic Bots
   ========================================================================== */
.table-wrap {
  overflow-x: auto;
  margin-top: 2.2rem;
  background: #FFFFFF;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
}

.compare-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.94rem;
}

.compare-table th, 
.compare-table td {
  padding: 1rem 1.4rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.compare-table th {
  background: #F8FAFC;
  font-weight: 800;
  font-family: var(--font-heading);
  color: var(--text-heading);
  font-size: 1.02rem;
}

.compare-table tr:last-child td {
  border-bottom: none;
}

.compare-table .col-guru {
  background: #F0F7FF;
  border-left: 2px solid var(--primary);
  border-right: 2px solid var(--primary);
  font-weight: 700;
}

.compare-table th.col-guru {
  background: #E0EFFF;
  color: var(--primary);
  position: relative;
}

.top-choice-tag {
  display: inline-block;
  background: var(--primary);
  color: #FFFFFF;
  font-size: 0.68rem;
  font-weight: 800;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  margin-bottom: 4px;
}

.check-green { color: #10B981; font-weight: 800; font-size: 1.1rem; }
.cross-red { color: #EF4444; font-weight: 800; font-size: 1.1rem; }
.warn-yellow { color: #F59E0B; font-weight: 800; font-size: 1.1rem; }

/* ==========================================================================
   Interactive Grade & Subject Explorer Tabs
   ========================================================================== */
.tabs-nav {
  display: flex;
  gap: 8px;
  overflow-x: auto;
  padding-bottom: 8px;
  margin-top: 2rem;
  border-bottom: 2px solid var(--border);
}

.tab-btn {
  background: transparent;
  border: none;
  padding: 10px 18px;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: 8px 8px 0 0;
  position: relative;
  white-space: nowrap;
  transition: all 0.2s ease;
  font-family: inherit;
}

.tab-btn:hover {
  color: var(--primary);
}

.tab-btn.active {
  color: var(--primary);
  background: var(--primary-soft);
}

.tab-btn.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary);
}

.tab-panel {
  display: none;
  padding-top: 2rem;
  animation: fadeInBubble 0.25s ease;
}

.tab-panel.active {
  display: block;
}

.tab-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.tab-item-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  box-shadow: var(--shadow-sm);
}

.tab-item-card h4 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
  color: var(--text-heading);
}

/* ==========================================================================
   Pricing Section & Plan Switcher
   ========================================================================== */
.pricing-switch-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 2rem 0 2.8rem;
}

.switch-pill {
  background: var(--bg-subtle);
  border: 1px solid var(--border);
  border-radius: var(--radius-pill);
  padding: 4px;
  display: inline-flex;
}

.switch-btn {
  border: none;
  background: transparent;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
}

.switch-btn.active {
  background: var(--primary);
  color: #FFFFFF;
  box-shadow: 0 2px 8px rgba(0, 82, 255, 0.3);
}

.discount-tag {
  background: #FEF3C7;
  color: #92400E;
  border: 1px solid #FDE68A;
  padding: 3px 8px;
  border-radius: var(--radius-pill);
  font-size: 0.75rem;
  font-weight: 800;
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  align-items: stretch;
}

.price-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 2.2rem;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  position: relative;
  transition: all 0.28s ease;
}

.price-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-card-hover);
}

.price-card.featured {
  border: 2px solid var(--primary);
  box-shadow: 0 16px 40px rgba(0, 82, 255, 0.16);
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
}

.popular-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--primary-gradient);
  color: #FFFFFF;
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  box-shadow: 0 4px 12px rgba(0, 82, 255, 0.3);
}

.price-card .price {
  font-family: var(--font-heading);
  font-size: 2.6rem;
  font-weight: 900;
  color: var(--text-heading);
  line-height: 1;
  margin: 1.2rem 0 0.5rem;
}

.price-card .price span {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-light);
}

.feature-list {
  list-style: none;
  margin: 1.5rem 0 2rem;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.92rem;
  flex-grow: 1;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  color: var(--text-muted);
}

.feature-list li::before {
  content: "✓";
  color: var(--primary);
  font-weight: 900;
  flex-shrink: 0;
}

/* ==========================================================================
   Parent Trust & Testimonials
   ========================================================================== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.6rem;
  margin-top: 2.4rem;
}

.testimonial-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.testimonial-card p {
  font-size: 0.94rem;
  color: var(--text-muted);
  line-height: 1.65;
  font-style: italic;
  margin-bottom: 1.2rem;
}

.testimonial-user {
  display: flex;
  align-items: center;
  gap: 12px;
}

.user-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1.1rem;
}

.user-meta b {
  display: block;
  font-size: 0.92rem;
  color: var(--text-heading);
}

.user-meta span {
  font-size: 0.78rem;
  color: var(--text-light);
}

/* ==========================================================================
   FAQ Accordion
   ========================================================================== */
.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 880px;
  margin: 2.2rem auto 0;
}

.faq-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.2rem 1.6rem;
  transition: all 0.2s ease;
}

.faq-card[open] {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.faq-card summary {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--text-heading);
  cursor: pointer;
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.faq-card summary::-webkit-details-marker {
  display: none;
}

.faq-card summary::after {
  content: "+";
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  transition: transform 0.2s ease;
}

.faq-card[open] summary::after {
  content: "−";
}

.faq-card p {
  margin-top: 0.8rem;
  font-size: 0.93rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ==========================================================================
   Bottom Action Band & Footer
   ========================================================================== */
.cta-band {
  background: var(--primary-gradient);
  border-radius: var(--radius-xl);
  padding: 3.5rem 2.5rem;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
  box-shadow: var(--shadow-glow);
}

.cta-band h2 {
  color: #FFFFFF;
  margin-bottom: 0.5rem;
}

.cta-band p {
  color: rgba(255, 255, 255, 0.9);
  font-size: 1.05rem;
}

.footer {
  background: #0B132B;
  color: #CBD5E1;
  padding: 4.5rem 0 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer h4 {
  color: #FFFFFF;
  font-size: 1.05rem;
  margin-bottom: 1.2rem;
}

.footer ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 9px;
  font-size: 0.9rem;
}

.footer ul a {
  color: #94A3B8;
}

.footer ul a:hover {
  color: #38BDF8;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 1.8rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.84rem;
  color: #64748B;
}

/* ==========================================================================
   Mobile Sticky Quick-Action Bar
   ========================================================================== */
.mobile-sticky-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-top: 1px solid var(--border-blue);
  padding: 10px 16px;
  z-index: 999;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
}

.mobile-sticky-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

/* ==========================================================================
   Legacy / Utility Classes Compatibility
   ========================================================================== */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.5rem; }
.card { background: #FFFFFF; border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.8rem; box-shadow: var(--shadow-sm); }
.icon { font-size: 2rem; margin-bottom: 1rem; }
.muted { color: var(--text-light); }
.breadcrumbs { font-size: 0.85rem; color: var(--text-light); margin-bottom: 1.2rem; }
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.step-num { width: 36px; height: 36px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: flex; align-items: center; justify-content: center; font-weight: 800; margin-bottom: 0.8rem; }

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
  .phone-mockup {
    max-width: 480px;
  }
  .bento-col-8, .bento-col-4, .bento-col-6 {
    grid-column: span 12;
  }
  .pricing-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
  }
  .testimonials-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 1024px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 1.5rem 1.8rem;
    border-bottom: 1px solid var(--border-blue);
    box-shadow: 0 16px 36px rgba(0, 82, 255, 0.12);
    gap: 0.9rem;
    z-index: 1001;
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links a {
    padding: 10px 14px;
    font-size: 1rem;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: space-between;
  }
  .menu-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }
}

@media (max-width: 768px) {
  .mobile-sticky-bar {
    display: flex;
  }
  .hero {
    padding: 2.5rem 0 2rem;
  }
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    width: 100%;
  }
  .stats {
    gap: 1.2rem;
    flex-wrap: wrap;
  }
  .grid-2, .grid-3, .grid-4, .steps {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  body {
    padding-bottom: 60px; /* offset for mobile sticky bar */
  }
}


/* ==========================================================================
   Page Hero & Subpage Headers
   ========================================================================== */
.page-hero {
  padding: 3.5rem 0 2.5rem;
  background: linear-gradient(180deg, #EFF6FF 0%, #FFFFFF 100%);
  border-bottom: 1px solid var(--border-card);
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: "";
  position: absolute;
  top: -100px;
  right: -50px;
  width: 350px;
  height: 350px;
  background: radial-gradient(circle, rgba(0, 82, 255, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.page-hero h1 {
  font-size: clamp(2.2rem, 3.8vw, 3rem);
  font-weight: 900;
  color: var(--text-heading);
  margin-bottom: 0.8rem;
  letter-spacing: -0.025em;
}

.page-hero .lead {
  font-size: 1.12rem;
  color: var(--text-muted);
  max-width: 720px;
  line-height: 1.6;
  margin-bottom: 0;
}

.breadcrumbs {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 1.2rem;
}

.breadcrumbs a {
  color: var(--primary);
}

.breadcrumbs a:hover {
  text-decoration: underline;
}

/* ==========================================================================
   Form Design System & Start Page Layout
   ========================================================================== */
.start-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2.5rem;
  align-items: flex-start;
  margin-top: 1.5rem;
}

.setup-card {
  background: #FFFFFF;
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-xl);
  padding: 2.4rem;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.setup-card-header {
  margin-bottom: 2rem;
  padding-bottom: 1.2rem;
  border-bottom: 1px solid var(--border);
}

.setup-card-header h2 {
  font-size: 1.5rem;
  margin-bottom: 0.4rem;
}

.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.2rem;
}

.form-group {
  margin-bottom: 1.4rem;
  position: relative;
}

.form-label {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 7px;
}

.required-star {
  color: #EF4444;
  font-weight: 800;
}

.form-control,
input[type="text"],
input[type="email"],
input[type="search"],
select {
  width: 100%;
  padding: 12px 15px;
  font-size: 0.94rem;
  font-family: var(--font-body);
  color: var(--text-main);
  background-color: #FFFFFF;
  border: 1.5px solid #E2E8F0;
  border-radius: var(--radius-md);
  outline: none;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.04);
}

.form-control:focus,
input[type="text"]:focus,
input[type="email"]:focus,
input[type="search"]:focus,
select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(0, 82, 255, 0.14);
  background-color: #FFFFFF;
}

select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%230052FF' stroke-width='2.5'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M19 9l-7 7-7-7'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  background-size: 16px;
  padding-right: 40px;
  cursor: pointer;
}

.filter-input {
  margin-bottom: 7px;
  padding: 8px 12px 8px 34px;
  font-size: 0.84rem;
  background-color: #F8FAFC;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 24 24' stroke='%2394A3B8' stroke-width='2'%3E%3Cpath stroke-linecap='round' stroke-linejoin='round' d='M21 21l-6-6m2-5a7 7 0 11-14 0 7 7 0 0114 0z'%3E%3C/path%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: 10px center;
  background-size: 16px;
  border-radius: var(--radius-sm);
}

.filter-input:focus {
  background-color: #FFFFFF;
}

.other-field {
  margin-top: 8px;
}

.field-hint {
  font-size: 0.78rem;
  color: var(--text-light);
  line-height: 1.45;
  margin-top: 5px;
}

/* Custom Checkbox */
.checkbox-wrap {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  font-size: 0.88rem;
  color: var(--text-muted);
  user-select: none;
  margin: 1.2rem 0 1.6rem;
}

.checkbox-wrap input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

/* Start Page Live Preview Sidebar */
.preview-sidebar {
  position: sticky;
  top: 96px;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.live-whatsapp-card {
  background: #FFFFFF;
  border: 1px solid var(--border-blue);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.live-card-header {
  background: #075E54;
  color: #FFFFFF;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.live-card-header b {
  font-size: 0.92rem;
  display: flex;
  align-items: center;
  gap: 6px;
}

.live-card-body {
  background: #EFEAE2;
  background-image: radial-gradient(#d4ccc3 1px, transparent 1px);
  background-size: 16px 16px;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.86rem;
}

.live-msg-box {
  background: #E7FCE8;
  border-radius: 12px;
  padding: 10px 14px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.12);
  align-self: flex-end;
  max-width: 90%;
  color: #111827;
  font-family: monospace;
  font-size: 0.84rem;
  line-height: 1.5;
  border-top-right-radius: 2px;
  word-break: break-all;
}

.live-bot-reply {
  background: #FFFFFF;
  border-radius: 12px;
  padding: 12px 14px;
  box-shadow: 0 1px 2px rgba(0,0,0,0.08);
  align-self: flex-start;
  max-width: 92%;
  color: #1E293B;
  border-top-left-radius: 2px;
  line-height: 1.5;
}

/* Quick 3-Step Guide Card */
.steps-card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.8rem;
  box-shadow: var(--shadow-sm);
}

.steps-card h3 {
  font-size: 1.15rem;
  margin-bottom: 1.2rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.steps-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  list-style: none;
}

.steps-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.steps-badge {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary-soft);
  color: var(--primary);
  font-weight: 800;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

/* Trust Guarantee Pill Row */
.trust-strip {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 1.2rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: #059669;
}

.trust-strip span {
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

@media (max-width: 1024px) {
  .start-layout {
    grid-template-columns: 1fr;
  }
  .preview-sidebar {
    position: static;
  }
}

@media (max-width: 640px) {
  .form-grid-2 {
    grid-template-columns: 1fr;
  }
  .setup-card {
    padding: 1.6rem 1.2rem;
  }
}