/* ============================================
   SubSentry Website — style.css
   Premium SaaS landing page styles
   ============================================ */

/* --- CSS Variables --- */
:root {
  --primary: #6366F1;
  --primary-light: #818CF8;
  --primary-dark: #4F46E5;
  --accent: #14B8A6;
  --accent-light: #2DD4BF;
  --bg: #FAFBFE;
  --bg-alt: #F1F5F9;
  --dark: #0B0F1A;
  --dark-mid: #0F172A;
  --dark-light: #1E293B;
  --text: #334155;
  --text-light: #64748B;
  --text-muted: #94A3B8;
  --white: #FFFFFF;
  --card: #FFFFFF;
  --border: rgba(226, 232, 240, 0.6);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.06);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.08);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.1);
  --shadow-glow: 0 0 80px rgba(99,102,241,0.15);
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-3xl: 32px;
  --radius-full: 9999px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1200px;
}

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

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

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

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

img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

/* --- Utilities --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

.section { padding: 100px 0; }
.section-sm { padding: 80px 0; }
.text-center { text-align: center; }

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  color: var(--dark);
  font-weight: 700;
  line-height: 1.15;
}

h1 { font-size: clamp(3rem, 7vw, 5rem); letter-spacing: -0.04em; }
h2 { font-size: clamp(2rem, 4.5vw, 3rem); letter-spacing: -0.03em; }
h3 { font-size: clamp(1.15rem, 2vw, 1.35rem); letter-spacing: -0.01em; }

p { color: var(--text-light); font-size: 1.05rem; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.eyebrow::before {
  content: '';
  width: 20px;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 28px;
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity 0.35s;
}

.btn:hover::after { opacity: 1; }

.btn-primary {
  background: var(--primary);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.35), 0 0 0 1px rgba(99,102,241,0.1) inset;
}

.btn-primary:hover {
  background: var(--primary-dark);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.45), 0 0 0 1px rgba(99,102,241,0.15) inset;
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(255,255,255,0.7);
  color: var(--dark);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.btn-secondary:hover {
  background: var(--white);
  border-color: var(--primary-light);
  color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
  border-radius: var(--radius-2xl);
}

.btn svg { width: 20px; height: 20px; }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  background: rgba(250, 251, 254, 0.95);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid rgba(226,232,240,0.3);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav.scrolled {
  padding: 12px 0;
  background: rgba(250, 251, 254, 0.92);
  box-shadow: 0 1px 12px rgba(0,0,0,0.04);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.02em;
}

.nav-logo-icon {
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 800;
  font-size: 0.85rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-light);
  transition: var(--transition);
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1.5px;
  background: var(--primary);
  border-radius: 1px;
  transition: width 0.3s ease;
}

.nav-links a:hover::after { width: 100%; }

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  color: var(--dark);
}

.nav-mobile-toggle svg { width: 24px; height: 24px; }

/* --- Hero Section --- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 120px;
  padding-bottom: 60px;
}

/* Animated mesh gradient background */
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  z-index: 0;
}

.hero-bg-gradient {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.5;
  animation: blobFloat 20s ease-in-out infinite;
}

.hero-bg-gradient:nth-child(1) {
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(99,102,241,0.18) 0%, transparent 70%);
  top: -20%;
  right: -5%;
  animation-delay: 0s;
}

.hero-bg-gradient:nth-child(2) {
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(20,184,166,0.12) 0%, transparent 70%);
  bottom: -10%;
  left: -5%;
  animation-delay: -7s;
}

.hero-bg-gradient:nth-child(3) {
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(139,92,246,0.1) 0%, transparent 70%);
  top: 40%;
  left: 30%;
  animation-delay: -14s;
}

/* Grid pattern overlay */
.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99,102,241,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,102,241,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, black 30%, transparent 80%);
}

/* Subtle dot grid */
.hero-bg-dots {
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(99,102,241,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
  mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 50% 50% at 50% 50%, black 20%, transparent 70%);
}

@keyframes blobFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  25% { transform: translate(30px, -20px) scale(1.05); }
  50% { transform: translate(-20px, 20px) scale(0.95); }
  75% { transform: translate(15px, 10px) scale(1.02); }
}

.hero-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-content {
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px 8px 10px;
  background: rgba(99,102,241,0.06);
  border: 1px solid rgba(99,102,241,0.12);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 32px;
  backdrop-filter: blur(8px);
}

.hero-badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.hero-title {
  margin-bottom: 28px;
  font-weight: 800;
}

.hero-title .line {
  display: block;
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, #8B5CF6 40%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 1.2rem;
  line-height: 1.75;
  color: var(--text-light);
  margin-bottom: 44px;
  max-width: 480px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-buttons .btn-primary svg {
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.15));
}

/* --- Hero Phone Mockup --- */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
  perspective: 1200px;
}

.phone-wrapper {
  position: relative;
  transform: rotateY(-8deg) rotateX(4deg);
  transform-style: preserve-3d;
  transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.phone-wrapper:hover {
  transform: rotateY(-3deg) rotateX(2deg);
}

.phone-mockup {
  width: 280px;
  height: 580px;
  background: var(--dark);
  border-radius: 40px;
  padding: 10px;
  box-shadow:
    0 40px 80px rgba(0,0,0,0.2),
    0 16px 32px rgba(0,0,0,0.1),
    0 0 0 1px rgba(255,255,255,0.06) inset,
    var(--shadow-glow);
  position: relative;
  z-index: 2;
}

.phone-notch {
  position: absolute;
  top: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 26px;
  background: var(--dark);
  border-radius: 0 0 18px 18px;
  z-index: 3;
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--bg);
  border-radius: 30px;
  overflow: hidden;
  position: relative;
}

.phone-screen-header {
  background: linear-gradient(145deg, var(--primary) 0%, #4F46E5 50%, #3730A3 100%);
  padding: 50px 22px 28px;
  color: var(--white);
  position: relative;
}

.phone-screen-header::after {
  content: '';
  position: absolute;
  bottom: -20px;
  left: 0;
  right: 0;
  height: 40px;
  background: var(--bg);
  border-radius: 20px 20px 0 0;
}

.phone-screen-header h4 {
  color: rgba(255,255,255,0.7);
  font-size: 0.75rem;
  font-weight: 500;
  margin-bottom: 6px;
}

.phone-screen-header .amount {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.phone-screen-body {
  padding: 10px 18px 20px;
}

.phone-card {
  background: var(--white);
  border-radius: var(--radius-md);
  padding: 12px;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 1px 4px rgba(0,0,0,0.04);
  border: 1px solid rgba(226,232,240,0.5);
}

.phone-card-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  flex-shrink: 0;
}

.phone-card-info { flex: 1; min-width: 0; }

.phone-card-name {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.phone-card-meta {
  font-size: 0.6rem;
  color: var(--text-muted);
}

.phone-card-price {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--dark);
}

/* --- Floating Glass Cards --- */
.float-card {
  position: absolute;
  background: rgba(255,255,255,0.65);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border: 1px solid rgba(255,255,255,0.7);
  border-radius: var(--radius-xl);
  padding: 16px 20px;
  box-shadow: 0 8px 32px rgba(0,0,0,0.06), 0 2px 8px rgba(0,0,0,0.03);
  display: flex;
  align-items: center;
  gap: 14px;
  white-space: nowrap;
  z-index: 10;
  animation: floatCard 8s ease-in-out infinite;
}

.float-card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.float-card-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  font-weight: 500;
}

.float-card-value {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--dark);
  letter-spacing: -0.01em;
}

.float-card:nth-child(1) {
  top: 5%;
  left: -80px;
  animation-delay: 0s;
}

.float-card:nth-child(2) {
  top: 38%;
  right: -70px;
  animation-delay: -2s;
}

.float-card:nth-child(3) {
  bottom: 28%;
  left: -90px;
  animation-delay: -4s;
}

.float-card:nth-child(4) {
  bottom: 5%;
  right: -60px;
  animation-delay: -6s;
}

@keyframes floatCard {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

/* --- Features Section --- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 64px;
}

.feature-card {
  background: var(--card);
  border-radius: var(--radius-2xl);
  padding: 36px 32px;
  border: 1px solid var(--border);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity 0.4s;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.08);
  border-color: transparent;
}

.feature-card:hover::before { opacity: 1; }

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 22px;
  font-size: 1.35rem;
}

.feature-card h3 { margin-bottom: 10px; }
.feature-card p { font-size: 0.9rem; line-height: 1.65; }

/* --- Showcase Section --- */
.showcase {
  background: var(--dark);
  color: var(--white);
  position: relative;
  overflow: hidden;
}

.showcase::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -15%;
  width: 700px;
  height: 700px;
  background: radial-gradient(circle, rgba(99,102,241,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.showcase-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.showcase .eyebrow { color: var(--accent-light); }
.showcase .eyebrow::before { background: var(--accent-light); }
.showcase h2 { color: var(--white); }

.showcase-features {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 44px;
}

.showcase-feature {
  display: flex;
  gap: 18px;
  align-items: flex-start;
}

.showcase-feature-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-md);
  background: rgba(99,102,241,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--primary-light);
  font-size: 1.1rem;
}

.showcase-feature h4 {
  color: var(--white);
  font-size: 1rem;
  margin-bottom: 6px;
}

.showcase-feature p {
  color: rgba(255,255,255,0.5);
  font-size: 0.875rem;
  line-height: 1.6;
}

.showcase-phone { display: flex; justify-content: center; }

/* Hero Screenshot */
.hero-screenshot {
  position: relative;
  z-index: 2;
  max-width: 320px;
  margin: 0 auto;
}

.hero-screenshot img {
  width: 100%;
  height: auto;
  border-radius: 24px;
  box-shadow: 0 40px 80px rgba(0,0,0,0.25), 0 16px 32px rgba(0,0,0,0.15);
}

/* Screenshot Gallery */
.screenshot-gallery {
  max-width: 400px;
  width: 100%;
}

.screenshot-main {
  width: 100%;
  height: auto;
  border-radius: 20px;
  box-shadow: 0 32px 64px rgba(0,0,0,0.3), 0 12px 24px rgba(0,0,0,0.2);
  margin-bottom: 16px;
}

.screenshot-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.screenshot-thumb {
  width: 100%;
  height: auto;
  border-radius: 14px;
  box-shadow: 0 8px 24px rgba(0,0,0,0.15);
  transition: transform 0.3s ease;
}

.screenshot-thumb:hover {
  transform: scale(1.03);
}

/* --- Analytics / Charts Section --- */
.analytics-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 64px;
}

.analytics-card {
  background: var(--card);
  border-radius: var(--radius-2xl);
  padding: 32px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.analytics-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.analytics-card-title {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 16px;
}

.analytics-card-value {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}

.analytics-card-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* CSS Charts */
.chart-bar {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 100px;
  margin-top: 24px;
}

.chart-bar-item {
  flex: 1;
  border-radius: 6px 6px 0 0;
  transition: all 0.3s;
  position: relative;
}

.chart-bar-item:hover { opacity: 0.75; }

.chart-bar-label {
  position: absolute;
  bottom: -24px;
  left: 50%;
  transform: translateX(-50%);
  font-size: 0.65rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.chart-donut {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  position: relative;
  margin: 20px auto;
}

.chart-donut-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
}

.chart-donut-center .value {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--dark);
}

.chart-donut-center .label {
  font-size: 0.7rem;
  color: var(--text-muted);
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 16px;
}

.chart-legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  color: var(--text-light);
}

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

/* --- How It Works --- */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  margin-top: 64px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 44px;
  left: 16.67%;
  right: 16.67%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0.2;
}

.step-card { text-align: center; position: relative; }

.step-number {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), #8B5CF6);
  color: var(--white);
  font-size: 1.6rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 28px;
  position: relative;
  z-index: 1;
  box-shadow: 0 12px 32px rgba(99,102,241,0.3);
}

.step-card h3 { margin-bottom: 12px; }
.step-card p { font-size: 0.9rem; max-width: 280px; margin: 0 auto; }

/* --- Testimonials --- */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 64px;
}

.testimonial-card {
  background: var(--card);
  border-radius: var(--radius-2xl);
  padding: 36px;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.testimonial-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.testimonial-stars {
  color: #F59E0B;
  font-size: 1rem;
  margin-bottom: 18px;
  letter-spacing: 3px;
}

.testimonial-text {
  font-size: 1rem;
  line-height: 1.75;
  color: var(--text);
  margin-bottom: 24px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 0.85rem;
}

.testimonial-name {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--dark);
}

.testimonial-role {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- FAQ --- */
.faq-list {
  max-width: 720px;
  margin: 64px auto 0;
}

.faq-item { border-bottom: 1px solid var(--border); }

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 22px 0;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--dark);
  text-align: left;
  transition: var(--transition);
}

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

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--transition);
  font-size: 1.1rem;
  color: var(--text-light);
}

.faq-item.active .faq-icon {
  background: var(--primary);
  color: var(--white);
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer { max-height: 300px; }

.faq-answer p {
  padding-bottom: 22px;
  font-size: 0.95rem;
  line-height: 1.75;
}

/* --- CTA Section --- */
.cta {
  background: linear-gradient(145deg, var(--primary) 0%, #4F46E5 40%, #3730A3 100%);
  color: var(--white);
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  top: -120px;
  left: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255,255,255,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.cta::after {
  content: '';
  position: absolute;
  bottom: -120px;
  right: -80px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(20,184,166,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.cta h2 {
  color: var(--white);
  margin-bottom: 16px;
}

.cta p {
  color: rgba(255,255,255,0.8);
  font-size: 1.15rem;
  margin-bottom: 44px;
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
}

.cta .btn {
  background: var(--white);
  color: var(--primary);
  font-weight: 700;
}

.cta .btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.2);
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.cta-buttons .btn {
  background: var(--white);
  color: var(--primary);
  font-weight: 700;
}

.cta-buttons .btn:hover {
  background: rgba(255,255,255,0.9);
}

/* --- Footer --- */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 80px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 60px;
  margin-bottom: 60px;
}

.footer-brand p {
  color: rgba(255,255,255,0.4);
  font-size: 0.9rem;
  margin-top: 16px;
  max-width: 300px;
  line-height: 1.65;
}

.footer-col h4 {
  color: var(--white);
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.45);
  font-size: 0.9rem;
  padding: 6px 0;
  transition: var(--transition);
}

.footer-col a:hover { color: var(--white); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 0.85rem;
}

.footer-bottom a {
  color: rgba(255,255,255,0.45);
  transition: var(--transition);
}

.footer-bottom a:hover { color: var(--white); }

/* --- Page Headers (inner pages) --- */
.page-header {
  padding: 160px 0 70px;
  text-align: center;
  background: var(--bg);
}

.page-header h1 { margin-bottom: 16px; }
.page-header p { font-size: 1.1rem; max-width: 600px; margin: 0 auto; }

/* --- Content Pages --- */
.content-page { padding: 60px 0 120px; }
.content-page .container { max-width: 800px; }

.content-page h2 {
  font-size: 1.5rem;
  margin: 44px 0 16px;
  color: var(--dark);
}

.content-page h3 {
  font-size: 1.15rem;
  margin: 36px 0 12px;
  color: var(--dark);
}

.content-page p { margin-bottom: 16px; line-height: 1.85; }

.content-page ul {
  margin-bottom: 16px;
  padding-left: 24px;
}

.content-page ul li {
  list-style: disc;
  margin-bottom: 8px;
  line-height: 1.75;
  color: var(--text-light);
}

.content-page a {
  color: var(--primary);
  font-weight: 500;
}

.content-page a:hover { text-decoration: underline; }
.content-divider { height: 1px; background: var(--border); margin: 36px 0; }

/* --- Delete Account Page --- */
.delete-card {
  background: var(--card);
  border-radius: var(--radius-2xl);
  padding: 52px;
  border: 2px solid #FEE2E2;
  text-align: center;
  margin: 44px 0;
}

.delete-card h2 { color: #DC2626; margin-bottom: 16px; }

.delete-list {
  text-align: left;
  max-width: 400px;
  margin: 28px auto;
}

.delete-list li {
  list-style: none;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
}

.delete-list li::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #EF4444;
  flex-shrink: 0;
}

.delete-steps {
  background: var(--bg-alt);
  border-radius: var(--radius-xl);
  padding: 36px;
  margin: 36px 0;
}

.delete-steps h3 { margin-bottom: 24px; text-align: center; }

.delete-step {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 12px 0;
}

.delete-step-num {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

/* --- Support Page --- */
.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin: 44px 0;
}

.support-card {
  background: var(--card);
  border-radius: var(--radius-2xl);
  padding: 36px;
  border: 1px solid var(--border);
  text-align: center;
}

.support-card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 1.3rem;
  color: var(--white);
}

.support-card h3 { margin-bottom: 10px; }
.support-card p { font-size: 0.9rem; }

/* --- Reveal Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* --- Responsive --- */
@media (max-width: 1024px) {
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 60px;
  }

  .hero-content { max-width: 100%; }
  .hero-subtitle { max-width: 100%; margin-left: auto; margin-right: auto; }
  .hero-buttons { justify-content: center; }
  .hero-visual { order: -1; }

  .phone-wrapper { transform: rotateY(0) rotateX(0); }
  .phone-wrapper:hover { transform: rotateY(0) rotateX(0); }

  .float-card:nth-child(1) { left: 5%; top: 5%; }
  .float-card:nth-child(2) { right: 5%; top: 30%; }
  .float-card:nth-child(3) { left: 5%; bottom: 25%; }
  .float-card:nth-child(4) { right: 5%; bottom: 5%; }

  .showcase-inner {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .showcase-phone { order: -1; }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .analytics-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 80px 0; }
  .section-sm { padding: 60px 0; }
  .container { padding: 0 20px; }

  /* Nav */
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-mobile-toggle { display: block; }

  .nav-mobile {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(250,251,254,0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    z-index: 999;
    padding: 100px 32px 40px;
    flex-direction: column;
    gap: 0;
  }

  .nav-mobile.open { display: flex; }

  .nav-mobile a {
    display: block;
    padding: 18px 0;
    font-size: 1.1rem;
    font-weight: 500;
    color: var(--dark);
    border-bottom: 1px solid var(--border);
  }

  .nav-mobile .btn { margin-top: 24px; width: 100%; }

  .nav-mobile-close {
    position: absolute;
    top: 24px;
    right: 24px;
    background: none;
    border: none;
    font-size: 1.6rem;
    cursor: pointer;
    color: var(--dark);
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding-top: 100px;
    padding-bottom: 60px;
  }

  .hero-bg-gradient { opacity: 0.3; }

  .phone-mockup { width: 220px; height: 450px; }
  .float-card { display: none; }

  .hero-screenshot { max-width: 280px; }
  .hero-screenshot img { border-radius: 18px; }

  .screenshot-gallery { max-width: 300px; }
  .screenshot-main { border-radius: 16px; }
  .screenshot-thumb { border-radius: 12px; }

  /* Steps */
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
  .steps-grid::before { display: none; }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  /* Inner pages */
  .page-header { padding: 120px 0 50px; }
  .page-header h1 { font-size: 2rem; }
  .content-page { padding: 40px 0 80px; }
  .content-page .container { padding: 0 20px; }
  .content-page h2 { font-size: 1.35rem; margin: 32px 0 12px; }
  .content-page h3 { font-size: 1.1rem; margin: 28px 0 10px; }
  .content-page p { font-size: 0.95rem; }
  .content-page ul li { font-size: 0.9rem; }

  /* Cards */
  .delete-card { padding: 36px 20px; }
  .features-grid { grid-template-columns: 1fr; }
  .analytics-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .support-grid { grid-template-columns: 1fr; gap: 16px; }
  .support-card { padding: 28px 20px; }

  .showcase { padding: 80px 0; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-buttons .btn { width: 100%; }
  .cta-buttons { flex-direction: column; align-items: stretch; }
  .cta-buttons .btn { width: 100%; }
  h1 { font-size: 2.2rem; }
  h2 { font-size: 1.6rem; }
  h3 { font-size: 1rem; }

  .nav { padding: 14px 0; }
  .nav.scrolled { padding: 10px 0; }
  .nav-inner { padding: 0 16px; }
  .nav-logo { font-size: 1.05rem; gap: 8px; }
  .nav-logo-icon { width: 28px; height: 28px; font-size: 0.7rem; }

  .hero { padding-top: 90px; padding-bottom: 40px; }
  .hero-badge { font-size: 0.7rem; padding: 6px 12px 6px 8px; }
  .hero-subtitle { font-size: 0.95rem; }
  .hero-title { margin-bottom: 20px; }

  .hero-screenshot { max-width: 240px; }
  .hero-screenshot img { border-radius: 14px; }

  .screenshot-gallery { max-width: 260px; }
  .screenshot-main { border-radius: 14px; margin-bottom: 10px; }
  .screenshot-row { gap: 8px; }
  .screenshot-thumb { border-radius: 10px; }

  .feature-card { padding: 24px 18px; }
  .feature-icon { width: 44px; height: 44px; }

  .phone-mockup { width: 180px; height: 380px; border-radius: 32px; }
  .phone-notch { width: 80px; height: 22px; top: 8px; }
  .phone-screen { border-radius: 24px; }
  .phone-screen-header { padding: 40px 16px 20px; }
  .phone-screen-header .amount { font-size: 1.4rem; }
  .phone-card { padding: 8px; gap: 8px; }
  .phone-card-icon { width: 28px; height: 28px; font-size: 0.7rem; }
  .phone-card-name { font-size: 0.65rem; }

  .section { padding: 60px 0; }
  .section-sm { padding: 48px 0; }

  .cta { padding: 60px 0; }
  .cta h2 { font-size: 1.5rem; }
  .cta p { font-size: 0.95rem; margin-bottom: 32px; }

  .page-header { padding: 100px 0 40px; }
  .page-header h1 { font-size: 1.75rem; }
  .page-header p { font-size: 1rem; }

  .footer { padding: 48px 0 28px; }
  .footer-brand p { font-size: 0.85rem; }

  .delete-card { padding: 24px 16px; margin: 24px 0; }
  .delete-card h2 { font-size: 1.25rem; }
  .delete-step { flex-direction: column; text-align: center; gap: 8px; }
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .float-card { animation: none; }
  .hero-bg-gradient { animation: none; }
}