/* ============================================================
   LOCENTA AI - Premium SaaS Landing Page v3
   Lucide icons · Light/Dark theme · Mobile-first responsive
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ---------- shared design tokens ---------- */
:root {
  --primary: #4F46E5;
  --primary-dark: #3730A3;
  --primary-light: #818CF8;
  --accent: #06D6A0;
  --accent-dark: #05B384;
  --gradient: linear-gradient(135deg, #4F46E5 0%, #7C3AED 50%, #A855F7 100%);
  --gradient-dark: linear-gradient(135deg, #0F172A 0%, #1E1B4B 50%, #312E81 100%);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --shadow-glow: 0 0 40px rgba(79,70,229,0.3);
}

/* ---------- LIGHT theme (default) ---------- */
[data-theme="light"] {
  --bg-body: #FFFFFF;
  --bg-section: #FFFFFF;
  --bg-section-alt: #F8FAFC;
  --bg-card: #FFFFFF;
  --bg-card-hover: #FFFFFF;
  --bg-input: #F1F5F9;
  --border-color: #E2E8F0;
  --border-light: #F1F5F9;
  --text-heading: #0F172A;
  --text-body: #475569;
  --text-muted: #64748B;
  --text-faint: #94A3B8;
  --navbar-bg: rgba(255,255,255,0.8);
  --navbar-scrolled-border: #E2E8F0;
  --mobile-overlay: rgba(15,23,42,0.95);
  --hero-gradient: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
  --hero-blob-1: rgba(79,70,229,0.08);
  --hero-blob-2: rgba(6,214,160,0.06);
  --problem-icon-bg: rgba(239,68,68,0.08);
  --problem-icon-color: #EF4444;
  --badge-bg: rgba(79,70,229,0.08);
  --badge-color: var(--primary);
  --ai-extra-bg: #F8FAFC;
  --integration-icon-bg: #F8FAFC;
}

/* ---------- DARK theme ---------- */
[data-theme="dark"] {
  --bg-body: #0B1120;
  --bg-section: #0F172A;
  --bg-section-alt: #111827;
  --bg-card: #1E293B;
  --bg-card-hover: #263549;
  --bg-input: #1E293B;
  --border-color: #1E293B;
  --border-light: #1E293B;
  --text-heading: #F1F5F9;
  --text-body: #CBD5E1;
  --text-muted: #94A3B8;
  --text-faint: #64748B;
  --navbar-bg: rgba(11,17,32,0.85);
  --navbar-scrolled-border: #1E293B;
  --mobile-overlay: rgba(11,17,32,0.97);
  --hero-gradient: linear-gradient(180deg, #111827 0%, #0B1120 100%);
  --hero-blob-1: rgba(79,70,229,0.15);
  --hero-blob-2: rgba(6,214,160,0.1);
  --problem-icon-bg: rgba(239,68,68,0.15);
  --problem-icon-color: #F87171;
  --badge-bg: rgba(129,140,248,0.12);
  --badge-color: var(--primary-light);
  --ai-extra-bg: #1E293B;
  --integration-icon-bg: #1E293B;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.3);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -2px rgba(0,0,0,0.3);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.4), 0 4px 6px -4px rgba(0,0,0,0.3);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.4), 0 8px 10px -6px rgba(0,0,0,0.3);
}

/* ---------- base ---------- */
html { scroll-behavior: smooth; font-size: 16px; }

body.landing-page {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text-body);
  background: var(--bg-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  transition: background 0.35s ease, color 0.35s ease;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

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

/* ---------- Lucide icon defaults ---------- */
.lucide {
  width: 1em;
  height: 1em;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
  fill: none;
  vertical-align: middle;
  flex-shrink: 0;
}

/* ============================================================
   THEME TOGGLE
   ============================================================ */
.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-card);
  color: var(--text-body);
  cursor: pointer;
  transition: var(--transition);
  font-size: 18px;
}
.theme-toggle:hover {
  border-color: var(--primary-light);
  color: var(--primary);
  background: var(--badge-bg);
}
.theme-toggle .lucide { width: 18px; height: 18px; }
.theme-toggle .icon-sun,
.theme-toggle .icon-moon { transition: opacity .25s, transform .25s; }
[data-theme="light"] .theme-toggle .icon-moon { display: none; }
[data-theme="dark"]  .theme-toggle .icon-sun  { display: none; }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: var(--transition);
  background: var(--navbar-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  padding: 10px 0;
  border-bottom-color: var(--navbar-scrolled-border);
  box-shadow: var(--shadow-sm);
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-heading);
  white-space: nowrap;
  flex-shrink: 0;
}
.navbar-brand .brand-icon {
  width: 36px; height: 36px;
  background: var(--gradient);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: white; font-size: 18px; font-weight: 900;
}
.brand-logo {
  width: 60px;
  height: 60px;
  border-radius: 10px;
  object-fit: contain;
}

.footer-brand .brand-logo {
  width: 65px;
  height: 65px;
}

.brand-text {
  font-size: 1.85rem;
  font-weight: 800;
  color: var(--text-heading);
  letter-spacing: -0.02em;
  white-space: nowrap;
}

.brand-highlight {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-weight: 800;
}

.footer-brand .brand-text {
  font-size: 2rem;
}
.navbar-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.navbar-links a {
  font-size: 0.9rem; font-weight: 500;
  color: var(--text-muted);
  transition: var(--transition);
}
.navbar-links a:hover { color: var(--primary); }
.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.mobile-menu-btn {
  display: none;
  background: none; border: none;
  cursor: pointer; padding: 8px;
  color: var(--text-body);
}
.mobile-menu-btn svg { width: 24px; height: 24px; }

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center; justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-size: 0.95rem; font-weight: 600;
  border-radius: 10px; border: none;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  font-family: inherit;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 14px rgba(79,70,229,0.4);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79,70,229,0.5);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover {
  background: var(--primary); color: #fff;
  transform: translateY(-2px);
}
.btn-white {
  background: var(--bg-card);
  color: var(--primary);
  box-shadow: var(--shadow-md);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}
.btn-ghost {
  background: transparent;
  color: var(--text-muted);
  padding: 10px 20px;
}
.btn-ghost:hover { color: var(--primary); }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.05rem; border-radius: 12px; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 100px 0 60px;
  background: var(--hero-gradient);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -200px; right: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, var(--hero-blob-1) 0%, transparent 70%);
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -100px; left: -150px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, var(--hero-blob-2) 0%, transparent 70%);
  border-radius: 50%;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: var(--badge-bg);
  color: var(--badge-color);
  border-radius: 100px;
  font-size: 0.85rem; font-weight: 600;
  margin-bottom: 20px;
}
.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.5); }
}
.hero h1 {
  font-size: 3.2rem; font-weight: 800;
  line-height: 1.15;
  color: var(--text-heading);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero h1 .gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 520px;
}
.hero-buttons { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
  display: flex; gap: 40px;
  margin-top: 48px; padding-top: 32px;
  border-top: 1px solid var(--border-color);
}
.hero-stat { text-align: left; }
.hero-stat .stat-number {
  font-size: 2rem; font-weight: 800;
  color: var(--text-heading);
}
.hero-stat .stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

/* Hero Visual / Mockup */
.hero-visual { position: relative; }
.hero-mockup {
  background: #0F172A;
  border-radius: var(--radius-xl);
  padding: 2px;
  box-shadow: var(--shadow-xl), var(--shadow-glow);
  overflow: hidden;
}
.hero-mockup-inner {
  background: #1E293B;
  border-radius: 22px;
  padding: 24px;
  min-height: 400px;
  display: flex; flex-direction: column; gap: 16px;
}
.mockup-header {
  display: flex; align-items: center; gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.mockup-dot { width: 12px; height: 12px; border-radius: 50%; }
.mockup-dot.red    { background: #FF5F57; }
.mockup-dot.yellow { background: #FEBD2F; }
.mockup-dot.green  { background: #28C840; }
.mockup-title {
  color: #94A3B8; font-size: 0.8rem; margin-left: 8px;
}
.mockup-channels {
  display: grid; grid-template-columns: 1fr 1fr; gap: 12px;
}
.mockup-channel {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 16px;
  display: flex; align-items: center; gap: 12px;
}
.mockup-channel-icon {
  width: 36px; height: 36px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  color: inherit;
}
.mockup-channel-icon .lucide { width: 18px; height: 18px; }
.mc-whatsapp  { background: rgba(37,211,102,0.15); color: #25D366; }
.mc-instagram { background: rgba(225,48,108,0.15); color: #E1306C; }
.mc-facebook  { background: rgba(24,119,242,0.15); color: #1877F2; }
.mc-mail      { background: rgba(234,67,53,0.15);  color: #EA4335; }

.mockup-channel-info { flex: 1; }
.mockup-channel-name { color: #E2E8F0; font-size: 0.85rem; font-weight: 600; }
.mockup-channel-count { color: #94A3B8; font-size: 0.75rem; }
.mockup-channel-badge {
  background: var(--accent); color: #0F172A;
  font-size: 0.7rem; font-weight: 700;
  padding: 2px 8px; border-radius: 100px;
}
.mockup-messages {
  display: flex; flex-direction: column; gap: 8px; margin-top: 8px;
}
.mockup-msg {
  padding: 10px 14px; border-radius: 12px;
  font-size: 0.8rem; max-width: 80%;
  animation: fadeInUp 0.5s ease forwards; opacity: 0;
}
.mockup-msg:nth-child(1) { animation-delay: 0.3s; }
.mockup-msg:nth-child(2) { animation-delay: 0.6s; }
.mockup-msg:nth-child(3) { animation-delay: 0.9s; }
.mockup-msg.incoming {
  background: rgba(255,255,255,0.08);
  color: #CBD5E1;
  align-self: flex-start;
}
.mockup-msg.outgoing {
  background: var(--primary);
  color: #fff;
  align-self: flex-end;
}
.mockup-msg.ai-reply {
  background: linear-gradient(135deg, var(--primary), #7C3AED);
  color: #fff;
  align-self: flex-end;
  position: relative;
}
.mockup-msg .ai-label {
  font-size: 0.65rem; opacity: 0.7;
  display: flex; align-items: center; gap: 4px;
  margin-bottom: 4px;
}
.mockup-msg .ai-label .lucide { width: 12px; height: 12px; }

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   SECTIONS GENERAL
   ============================================================ */
.section {
  padding: 100px 0;
  background: var(--bg-section);
  transition: background 0.35s ease;
}
.section-dark {
  background: var(--gradient-dark) !important;
  color: #fff;
}
.section-gray {
  background: var(--bg-section-alt);
}
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: var(--badge-bg);
  color: var(--badge-color);
  border-radius: 100px;
  font-size: 0.8rem; font-weight: 600;
  margin-bottom: 16px;
}
.section-badge .lucide { width: 14px; height: 14px; }
.section-dark .section-badge {
  background: rgba(255,255,255,0.1);
  color: var(--primary-light);
}
.section-header h2 {
  font-size: 2.5rem; font-weight: 800;
  color: var(--text-heading);
  line-height: 1.2;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.section-dark .section-header h2 { color: #fff; }
.section-header p {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.7;
}
.section-dark .section-header p { color: #94A3B8; }

/* ============================================================
   PROBLEM CARDS
   ============================================================ */
.problems-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.problem-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}
.problem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}
.problem-icon {
  width: 48px; height: 48px;
  background: var(--problem-icon-bg);
  color: var(--problem-icon-color);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.problem-icon .lucide { width: 22px; height: 22px; }
.problem-card h3 {
  font-size: 1.05rem; font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
}
.problem-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ============================================================
   FEATURES GRID (inside section-dark)
   ============================================================ */
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.feature-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: var(--transition);
}
.feature-card:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-4px);
  border-color: rgba(129,140,248,0.3);
}
.feature-icon {
  width: 48px; height: 48px;
  background: rgba(79,70,229,0.2);
  color: var(--primary-light);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 16px;
}
.feature-icon .lucide { width: 22px; height: 22px; }
.feature-card h3 {
  font-size: 1.05rem; font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.feature-card p {
  font-size: 0.9rem;
  color: #94A3B8;
  line-height: 1.6;
}

/* ============================================================
   PANEL SECTION
   ============================================================ */
.panel-features {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: start;
}
.panel-list {
  display: flex; flex-direction: column; gap: 16px;
}
.panel-item {
  display: flex; align-items: flex-start; gap: 14px;
  padding: 16px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  transition: var(--transition);
}
.panel-item:hover {
  border-color: var(--primary-light);
  box-shadow: var(--shadow-md);
}
.panel-item-icon {
  width: 40px; height: 40px;
  background: var(--badge-bg);
  color: var(--primary);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.panel-item-icon .lucide { width: 18px; height: 18px; }
.panel-item h4 {
  font-size: 0.95rem; font-weight: 600;
  color: var(--text-heading);
  margin-bottom: 2px;
}
.panel-item p {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.panel-highlight {
  background: var(--gradient);
  color: #fff;
  padding: 20px 28px;
  border-radius: var(--radius-lg);
  font-size: 1.1rem; font-weight: 600;
  text-align: center;
  margin-top: 24px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.panel-highlight .lucide { width: 20px; height: 20px; }
.panel-visual {
  background: #0F172A;
  border-radius: var(--radius-xl);
  padding: 24px;
  min-height: 350px;
}

/* ============================================================
   AI STEPS
   ============================================================ */
.ai-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-bottom: 48px;
}
.ai-step {
  text-align: center;
  padding: 28px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  position: relative;
}
.ai-step:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}
.ai-step-number {
  width: 44px; height: 44px;
  background: var(--gradient);
  color: #fff;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; font-weight: 800;
  margin: 0 auto 16px;
}
.ai-step h3 {
  font-size: 0.95rem; font-weight: 700;
  color: var(--text-heading);
  line-height: 1.4;
}
.ai-extras {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}
.ai-extra {
  display: flex; align-items: center; gap: 10px;
  padding: 14px 18px;
  background: var(--ai-extra-bg);
  border-radius: var(--radius);
  font-size: 0.9rem; font-weight: 500;
  color: var(--text-body);
  transition: background 0.35s ease;
}
.ai-extra-icon {
  color: var(--primary);
  flex-shrink: 0;
  display: flex; align-items: center;
}
.ai-extra-icon .lucide { width: 18px; height: 18px; }

/* ============================================================
   TWO COLUMN (Email & Call)
   ============================================================ */
.two-col {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.col-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
}
.col-card:hover { box-shadow: var(--shadow-lg); }
.col-card h3 {
  font-size: 1.3rem; font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.col-card-icon {
  display: flex; align-items: center;
  color: var(--primary);
}
.col-card-icon .lucide { width: 24px; height: 24px; }
.col-list {
  display: flex; flex-direction: column; gap: 12px;
}
.col-list li {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.95rem;
  color: var(--text-body);
}
.col-list li::before {
  content: '✓';
  color: var(--accent); font-weight: 700;
  flex-shrink: 0;
}

/* ============================================================
   CRM / INTEGRATIONS
   ============================================================ */
.integrations-row {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.integration-item {
  display: flex; flex-direction: column;
  align-items: center; gap: 12px;
  padding: 20px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: var(--transition);
  min-width: 120px;
}
.integration-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary-light);
}
.integration-icon {
  width: 56px; height: 56px;
  background: var(--integration-icon-bg);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  color: var(--primary);
}
.integration-icon .lucide { width: 28px; height: 28px; }
.integration-name {
  font-size: 0.95rem; font-weight: 600;
  color: var(--text-heading);
}

/* ============================================================
   ADVANTAGES GRID (inside section-dark)
   ============================================================ */
.advantages-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.advantage-card {
  text-align: center;
  padding: 36px 24px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  transition: var(--transition);
}
.advantage-card:hover {
  background: rgba(255,255,255,0.1);
  transform: translateY(-4px);
}
.advantage-icon {
  margin-bottom: 16px;
  color: var(--primary-light);
  display: flex; align-items: center; justify-content: center;
}
.advantage-icon .lucide { width: 36px; height: 36px; }
.advantage-card h3 {
  font-size: 1.05rem; font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.advantage-card p {
  font-size: 0.9rem;
  color: #94A3B8;
}

/* ============================================================
   PRICING
   ============================================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  max-width: 420px;
  margin: 0 auto;
}
.pricing-card {
  background: var(--bg-card);
  border: 2px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: 36px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}
.pricing-card.featured {
  border-color: var(--primary);
  box-shadow: var(--shadow-glow);
}
.pricing-card.featured::before {
  content: 'Popüler';
  position: absolute;
  top: -14px; left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: #fff;
  padding: 4px 20px;
  border-radius: 100px;
  font-size: 0.8rem; font-weight: 700;
}
.pricing-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}
.pricing-card.featured:hover {
  transform: translateY(-4px);
}
.pricing-name {
  font-size: 1.2rem; font-weight: 700;
  color: var(--text-heading);
  margin-bottom: 8px;
}
.pricing-desc {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.pricing-features {
  text-align: left;
  margin-bottom: 28px;
  display: flex; flex-direction: column; gap: 10px;
}
.pricing-features li {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.9rem;
  color: var(--text-body);
}
.pricing-features li .check {
  color: var(--accent); font-weight: 700;
  flex-shrink: 0;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex; flex-direction: column; gap: 12px;
}
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--primary-light); }
.faq-question {
  padding: 20px 24px;
  font-size: 1rem; font-weight: 600;
  color: var(--text-heading);
  cursor: pointer;
  display: flex; align-items: center; justify-content: space-between;
  user-select: none;
}
.faq-question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--primary);
  transition: var(--transition);
}
.faq-item.open .faq-question::after { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-item.open .faq-answer { max-height: 200px; }
.faq-answer p {
  padding: 0 24px 20px;
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ============================================================
   FINAL CTA
   ============================================================ */
.final-cta {
  text-align: center;
  padding: 100px 0;
  background: var(--gradient-dark);
  position: relative;
  overflow: hidden;
}
.final-cta::before {
  content: '';
  position: absolute;
  top: -100px; left: 50%;
  transform: translateX(-50%);
  width: 800px; height: 800px;
  background: radial-gradient(circle, rgba(79,70,229,0.2) 0%, transparent 60%);
  border-radius: 50%;
}
.final-cta h2 {
  font-size: 2.5rem; font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
}
.final-cta p {
  font-size: 1.15rem;
  color: #94A3B8;
  margin-bottom: 36px;
  position: relative;
}
.final-cta .hero-buttons {
  justify-content: center;
  position: relative;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: #0F172A;
  color: #94A3B8;
  padding: 60px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  margin-bottom: 40px;
}
.footer-brand {
  font-size: 1.3rem; font-weight: 800;
  color: #fff;
  margin-bottom: 12px;
}
.footer-desc {
  font-size: 0.9rem; line-height: 1.7;
  color: #64748B;
}
.footer-col h4 {
  color: #fff;
  font-size: 0.95rem; font-weight: 600;
  margin-bottom: 16px;
}
.footer-col a {
  display: block;
  font-size: 0.9rem;
  color: #64748B;
  padding: 4px 0;
  transition: var(--transition);
}
.footer-col a:hover { color: var(--primary-light); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  text-align: center;
  font-size: 0.85rem;
  color: #475569;
}

/* ============================================================
   WHATSAPP FLOATING BUTTON
   ============================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 24px; right: 24px;
  z-index: 999;
  width: 56px; height: 56px;
  background: #25D366;
  color: white;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37,211,102,0.4);
  transition: var(--transition);
  cursor: pointer;
}
.whatsapp-float svg { width: 28px; height: 28px; }
.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 6px 28px rgba(37,211,102,0.5);
}

/* ============================================================
   MOBILE NAV OVERLAY
   ============================================================ */
.mobile-nav {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--mobile-overlay);
  backdrop-filter: blur(10px);
  z-index: 2000;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 24px;
}
.mobile-nav.active { display: flex; }
.mobile-nav a {
  font-size: 1.3rem; font-weight: 600;
  color: #fff;
  padding: 12px 24px;
}
.mobile-nav-close {
  position: absolute;
  top: 20px; right: 20px;
  background: none; border: none;
  color: #fff;
  font-size: 28px;
  cursor: pointer;
}

/* ============================================================
   RESPONSIVE  —  480 px
   ============================================================ */
@media (min-width: 480px) {
  .problems-grid      { grid-template-columns: repeat(2, 1fr); }
  .features-grid      { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid    { grid-template-columns: repeat(2, 1fr); }
  .ai-extras          { grid-template-columns: repeat(2, 1fr); }
  .integrations-row   { gap: 24px; }
  .integration-item   { min-width: 140px; padding: 24px; }
}

/* ============================================================
   RESPONSIVE  —  768 px
   ============================================================ */
@media (min-width: 768px) {
  .problems-grid       { grid-template-columns: repeat(3, 1fr); }
  .features-grid       { grid-template-columns: repeat(3, 1fr); }
  .ai-steps            { grid-template-columns: repeat(4, 1fr); }
  .ai-extras           { grid-template-columns: repeat(4, 1fr); }
  .two-col             { grid-template-columns: 1fr 1fr; }
  .advantages-grid     { grid-template-columns: repeat(3, 1fr); }
  .pricing-grid        { grid-template-columns: repeat(3, 1fr); max-width: none; }
  .pricing-card.featured { transform: scale(1.03); }
  .pricing-card.featured:hover { transform: scale(1.03) translateY(-4px); }
  .footer-grid         { grid-template-columns: 2fr 1fr 1fr 1fr; }
  .panel-features      { grid-template-columns: 1fr 1fr; gap: 60px; }
  .integrations-row    { gap: 32px; }
  .integration-item    { min-width: 160px; padding: 28px 32px; }
}

/* ============================================================
   RESPONSIVE  —  1024 px
   ============================================================ */
@media (min-width: 1024px) {
  .hero .container     { grid-template-columns: 1fr 1fr; text-align: left; }
  .hero-buttons        { justify-content: flex-start; }
  .hero-stats          { justify-content: flex-start; }
}

/* ---------- max-width overrides for small screens ---------- */
@media (max-width: 1023px) {
  .hero .container     { grid-template-columns: 1fr; text-align: center; }
  .hero-subtitle       { margin: 0 auto 32px; }
  .hero-buttons        { justify-content: center; }
  .hero-stats          { justify-content: center; }
  .hero-visual         { display: none; }
  .panel-visual        { display: none; }
  .section-header h2   { font-size: 2rem; }
  .hero h1             { font-size: 2.4rem; }
}

@media (max-width: 767px) {
  .navbar-links        { display: none; }
  .navbar-actions .btn-ghost,
  .navbar-actions .btn-outline { display: none; }
  .mobile-menu-btn     { display: block; }

  /* Brand - prevent wrapping */
  .brand-text          { font-size: 1.3rem; white-space: nowrap; }
  .navbar-brand        { gap: 6px; }

  /* Sections */
  .section             { padding: 60px 0; }
  .container           { padding: 0 16px; }

  /* Hero */
  .hero                { padding: 80px 0 40px; min-height: 100vh; }
  .hero h1             { font-size: 1.75rem; line-height: 1.2; }
  .hero-subtitle       { font-size: 1rem; }
  .hero-badge          { font-size: 0.78rem; padding: 5px 12px; }

  /* Hero buttons stacked on very small */
  .hero-buttons        { flex-direction: column; align-items: center; gap: 10px; }
  .hero-buttons .btn   { width: 100%; max-width: 280px; text-align: center; }

  /* Hero stats horizontal scroll-proof */
  .hero-stats          { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; text-align: center; }
  .hero-stat           { text-align: center; }
  .hero-stat .stat-number { font-size: 1.5rem; }
  .hero-stat .stat-label  { font-size: 0.78rem; }

  /* Section headers */
  .section-header h2   { font-size: 1.6rem; }
  .section-header p    { font-size: 0.9rem; }

  /* Pricing single column */
  .pricing-grid        { grid-template-columns: 1fr; max-width: 400px; margin: 0 auto; }
  .pricing-card.featured { transform: none; }
  .pricing-card.featured:hover { transform: translateY(-4px); }

  /* Final CTA */
  .final-cta           { padding: 60px 0; }
  .final-cta h2        { font-size: 1.6rem; }
  .final-cta p         { font-size: 1rem; }

  /* Footer */
  .footer-grid         { grid-template-columns: 1fr; gap: 28px; }
  .footer-brand .brand-text { font-size: 1.4rem; }

  /* Buttons smaller */
  .btn                 { padding: 12px 24px; font-size: 0.9rem; }
  .btn-sm              { padding: 8px 16px; font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .brand-text          { font-size: 1.15rem; }
  .hero h1             { font-size: 1.5rem; }
  .hero-subtitle       { font-size: 0.9rem; }
  .hero-stats          { grid-template-columns: 1fr 1fr; gap: 12px; }
  .hero-stat .stat-number { font-size: 1.3rem; }
  .section-header h2   { font-size: 1.4rem; }
  .final-cta h2        { font-size: 1.3rem; }
  .navbar              { padding: 10px 0; }
  .navbar.scrolled     { padding: 8px 0; }
  .theme-toggle        { width: 34px; height: 34px; }
  .btn-sm              { padding: 7px 14px; font-size: 0.78rem; }
}