/* =========================================
   AI Product Marketing Designer - Style 
   ========================================= */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600&family=Outfit:wght@400;600;700;800&display=swap');

:root {
  /* Colors */
  --bg-dark: #030008;
  --bg-card: rgba(255, 255, 255, 0.02);
  --text-main: #E2E8F0;
  --text-muted: #94A3B8;
  --accent-purple: #B266FF;
  --accent-cyan: #00E4FF;
  --accent-magenta: #FF2E93;
  --border-glow: rgba(178, 102, 255, 0.3);
  --border-light: rgba(255, 255, 255, 0.08);

  /* Typography */
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Outfit', sans-serif;

  /* Spacing */
  --section-pd: 100px 20px;
}

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

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

/* Background Gradients */
.bg-gradients {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: -1;
  pointer-events: none;
  background: radial-gradient(circle at 15% 50%, rgba(178, 102, 255, 0.12) 0%, transparent 50%),
              radial-gradient(circle at 85% 30%, rgba(0, 228, 255, 0.08) 0%, transparent 50%);
}

/* Typography Utilities */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
}

.gradient-text {
  background: linear-gradient(90deg, var(--accent-purple), var(--accent-cyan));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: inline-block;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* Header & Nav */
header {
  padding: 24px 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  background: rgba(3, 0, 8, 0.7);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  letter-spacing: -0.5px;
  color: #fff;
  text-decoration: none;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.3s ease;
  font-family: var(--font-heading);
  cursor: pointer;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-purple), #8B3DFF);
  color: white;
  box-shadow: 0 4px 20px rgba(178, 102, 255, 0.4);
  border: none;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px rgba(178, 102, 255, 0.6);
  background: linear-gradient(135deg, #bd7aff, #9851ff);
}

.btn-secondary {
  background: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-light);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.3);
}

/* Hero Section */
.hero {
  padding: 180px 20px 100px;
  text-align: center;
  position: relative;
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  line-height: 1.1;
  margin-bottom: 24px;
  font-weight: 800;
  letter-spacing: -1px;
}

.hero p {
  font-size: 1.25rem;
  color: var(--text-muted);
  max-width: 700px;
  margin: 0 auto 40px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-bottom: 60px;
}

.hero-visual {
  position: relative;
  max-width: 900px;
  margin: 0 auto;
  border-radius: 24px;
  padding: 10px;
  background: linear-gradient(180deg, rgba(255,255,255,0.1), rgba(255,255,255,0));
  box-shadow: 0 20px 40px rgba(0,0,0,0.5), 0 0 80px rgba(178, 102, 255, 0.2);
}

.hero-visual img {
  width: 100%;
  height: auto;
  border-radius: 16px;
  display: block;
  border: 1px solid rgba(255,255,255,0.05);
}

/* Features Section */
.features {
  padding: var(--section-pd);
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-header h2 {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-muted);
  font-size: 1.1rem;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 32px;
}

/* Glass Card */
.glass-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border-light);
  border-radius: 20px;
  padding: 40px 32px;
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(178, 102, 255, 0.1), transparent 70%);
  opacity: 0;
  transition: opacity 0.4s ease;
}

.glass-card:hover {
  transform: translateY(-8px);
  border-color: var(--border-glow);
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

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

.feature-number {
  font-size: 14px;
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 16px;
  display: block;
  letter-spacing: 2px;
}

.glass-card h3 {
  font-size: 1.5rem;
  margin-bottom: 16px;
  color: white;
}

.glass-card p {
  color: var(--text-muted);
}

/* Solutions Section */
.solutions {
  padding: var(--section-pd);
  background: linear-gradient(180deg, rgba(3,0,8,0) 0%, rgba(178,102,255,0.03) 50%, rgba(3,0,8,0) 100%);
}

.solution-row {
  display: flex;
  align-items: center;
  gap: 60px;
  margin-bottom: 100px;
}

.solution-row:nth-child(even) {
  flex-direction: row-reverse;
}

.solution-content {
  flex: 1;
}

.solution-content h3 {
  font-size: 2.2rem;
  margin-bottom: 24px;
}

.solution-content p {
  color: var(--text-muted);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

.solution-list {
  list-style: none;
}

.solution-list li {
  position: relative;
  padding-left: 28px;
  margin-bottom: 16px;
  color: #fff;
}

.solution-list li::before {
  content: '✦';
  position: absolute;
  left: 0;
  top: 0;
  color: var(--accent-cyan);
  font-size: 1.2rem;
}

.solution-image {
  flex: 1;
  position: relative;
}

.solution-image img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 10px 40px rgba(0,0,0,0.5);
  border: 1px solid var(--border-light);
}

/* Comparison Section */
.comparison {
  padding: var(--section-pd);
  text-align: center;
}

.comparison-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr 1fr;
  gap: 20px;
  margin-top: 60px;
}

.comp-column {
  padding: 40px;
  border-radius: 20px;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
}

.comp-column.highlight {
  background: linear-gradient(180deg, rgba(255,255,255,0.05), rgba(178,102,255,0.08));
  border: 1px solid var(--border-glow);
  transform: scale(1.05);
  box-shadow: 0 0 40px rgba(178,102,255,0.15);
}

.comp-column h4 {
  font-size: 1.3rem;
  margin-bottom: 30px;
  color: var(--text-muted);
}

.comp-column.highlight h4 {
  color: var(--accent-purple);
  font-weight: 700;
  font-size: 1.5rem;
}

.comp-item {
  padding: 16px 0;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  font-size: 1rem;
}

.comp-item:last-child {
  border-bottom: none;
}

.comp-column:not(.highlight) .comp-item i.bad {
  color: #FF4D4D;
  margin-right: 8px;
}

.comp-column.highlight .comp-item i.good {
  color: var(--accent-cyan);
  margin-right: 8px;
}

/* Footer / Final CTA */
.final-cta {
  padding: 120px 20px;
  text-align: center;
  background: radial-gradient(circle at center, rgba(178, 102, 255, 0.1) 0%, rgba(3,0,8,0) 70%);
}

.final-cta h2 {
  font-size: 3rem;
  margin-bottom: 24px;
}

footer {
  border-top: 1px solid var(--border-light);
  padding: 40px 20px;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 900px) {
  .solution-row {
    flex-direction: column !important;
    gap: 40px;
  }
  .comparison-grid {
    grid-template-columns: 1fr;
  }
  .comp-column.highlight {
    transform: none;
  }
}
@media (max-width: 600px) {
  .hero h1 {
    font-size: 2.2rem;
  }
  .hero-cta {
    flex-direction: column;
  }
  .btn {
    width: 100%;
  }
}