/* ================================================================
   DSLink.me - Modern SaaS & Mobile Deep Link Design System
================================================================ */

:root {
  --font-main: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --bg-body: #070913;
  --bg-surface: rgba(15, 23, 42, 0.75);
  --bg-card: rgba(30, 41, 59, 0.5);
  --bg-card-hover: rgba(30, 41, 59, 0.8);
  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(59, 130, 246, 0.4);
  
  --primary: #3B82F6;
  --primary-glow: rgba(59, 130, 246, 0.35);
  --primary-gradient: linear-gradient(135deg, #3B82F6 0%, #8B5CF6 100%);
  --accent-cyan: #06B6D4;
  
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-full: 9999px;
  
  --shadow-glow: 0 0 50px rgba(59, 130, 246, 0.18);
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
}

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

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-main);
  background-color: var(--bg-body);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
  transition: all 0.2s ease;
}

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

/* Container */
.ds-container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Gradient Background Mesh */
.bg-mesh {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100vw;
  height: 900px;
  background: 
    radial-gradient(circle at 50% 10%, rgba(59, 130, 246, 0.18) 0%, transparent 60%),
    radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.12) 0%, transparent 50%),
    radial-gradient(circle at 20% 30%, rgba(6, 182, 212, 0.1) 0%, transparent 50%);
  pointer-events: none;
  z-index: 0;
}

/* Header */
.ds-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(7, 9, 19, 0.8);
  border-bottom: 1px solid var(--border-color);
  padding: 16px 0;
}

.ds-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.ds-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #fff;
}

.ds-logo-badge {
  background: var(--primary-gradient);
  color: #fff;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  font-weight: 700;
}

.ds-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.ds-nav a {
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
}

.ds-nav a:hover {
  color: #fff;
}

/* Buttons */
.ds-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
}

.ds-btn-primary {
  background: var(--primary-gradient);
  color: #fff;
  box-shadow: 0 4px 20px var(--primary-glow);
}

.ds-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--primary-glow);
  color: #fff;
}

.ds-btn-white {
  background: #ffffff;
  color: #070913;
  box-shadow: 0 4px 20px rgba(255, 255, 255, 0.2);
}

.ds-btn-white:hover {
  transform: translateY(-2px);
  background: #f1f5f9;
  color: #070913;
}

.ds-btn-outline {
  background: rgba(255, 255, 255, 0.05);
  border-color: var(--border-color);
  color: #fff;
}

.ds-btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

/* Hero Section */
.ds-hero {
  position: relative;
  padding: 80px 0 60px;
  z-index: 1;
}

.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: #93C5FD;
  margin-bottom: 24px;
}

.hero-title {
  font-size: 56px;
  line-height: 1.1;
  font-weight: 800;
  letter-spacing: -1.5px;
  margin: 0 0 20px;
}

.gradient-text {
  background: linear-gradient(135deg, #60A5FA 0%, #C084FC 50%, #F472B6 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: 18px;
  line-height: 1.6;
  color: var(--text-secondary);
  max-width: 540px;
  margin: 0 0 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.hero-stats {
  display: flex;
  gap: 24px;
  color: var(--text-muted);
  font-size: 13px;
}

.hero-stats span {
  color: #fff;
  font-weight: 600;
}

/* Hero Mockup Showcase */
.hero-mockup-wrapper {
  position: relative;
  display: flex;
  justify-content: center;
  align-items: center;
}

.mockup-glow {
  position: absolute;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.4) 0%, transparent 70%);
  filter: blur(50px);
  z-index: 0;
}

.mockup-phone {
  position: relative;
  z-index: 2;
  width: 290px;
  border-radius: 40px;
  box-shadow: 0 25px 60px -15px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.15);
  transform: perspective(1000px) rotateY(-8deg) rotateX(4deg);
  transition: transform 0.5s ease;
}

.mockup-phone:hover {
  transform: perspective(1000px) rotateY(0deg) rotateX(0deg) scale(1.02);
}

.mockup-card-float {
  position: absolute;
  bottom: 30px;
  left: -40px;
  z-index: 3;
  width: 240px;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 40px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.1);
  animation: floatCard 4s ease-in-out infinite alternate;
}

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

/* Supported Apps Pills */
.ds-apps-bar {
  padding: 40px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  background: rgba(15, 23, 42, 0.4);
}

.apps-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.app-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-color);
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  transition: all 0.2s ease;
}

.app-chip:hover {
  background: rgba(59, 130, 246, 0.15);
  border-color: rgba(59, 130, 246, 0.5);
  color: #fff;
  transform: translateY(-2px);
}

.app-chip.featured {
  background: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.3);
  color: #93C5FD;
}

/* Features Section (Bento Grid) */
.ds-section {
  padding: 100px 0;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}

.section-tag {
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-title {
  font-size: 40px;
  font-weight: 800;
  letter-spacing: -1px;
  margin: 0 0 16px;
  line-height: 1.2;
}

.section-desc {
  font-size: 16px;
  color: var(--text-secondary);
  margin: 0;
}

/* Bento Grid Cards */
.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.bento-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all 0.3s ease;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  flex-direction: column;
}

.bento-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.bento-card.span-2 {
  grid-column: span 2;
}

.bento-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-md);
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid rgba(59, 130, 246, 0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--primary);
  margin-bottom: 20px;
}

.bento-icon.purple {
  background: rgba(139, 92, 246, 0.12);
  border-color: rgba(139, 92, 246, 0.3);
  color: #A78BFA;
}

.bento-icon.cyan {
  background: rgba(6, 182, 212, 0.12);
  border-color: rgba(6, 182, 212, 0.3);
  color: #22D3EE;
}

.bento-icon.emerald {
  background: rgba(16, 185, 129, 0.12);
  border-color: rgba(16, 185, 129, 0.3);
  color: #34D399;
}

.bento-title {
  font-size: 20px;
  font-weight: 700;
  margin: 0 0 12px;
  color: #fff;
}

.bento-text {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* Screenshots Gallery Carousel */
.screenshots-wrap {
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 20px 0 40px;
  scrollbar-width: thin;
  scrollbar-color: var(--primary) transparent;
}

.screenshots-wrap::-webkit-scrollbar {
  height: 6px;
}

.screenshots-wrap::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-full);
}

.screen-item {
  flex: 0 0 240px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.6);
  border: 1px solid var(--border-color);
  transition: transform 0.3s ease;
}

.screen-item:hover {
  transform: translateY(-6px);
  border-color: var(--primary);
}

/* Comparison Section */
.comparison-box {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.comparison-col {
  padding: 40px;
}

.comparison-col.bad {
  background: rgba(239, 68, 68, 0.04);
  border-right: 1px solid var(--border-color);
}

.comparison-col.good {
  background: rgba(16, 185, 129, 0.04);
}

.comp-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  margin-bottom: 16px;
}

.comp-badge.bad { background: rgba(239, 68, 68, 0.15); color: #FCA5A5; }
.comp-badge.good { background: rgba(16, 185, 129, 0.15); color: #6EE7B7; }

.comp-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.comp-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
  font-size: 14px;
  color: var(--text-secondary);
}

/* FAQ Accordion */
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.faq-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 24px;
  transition: all 0.2s ease;
}

.faq-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-card-hover);
}

.faq-q {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 10px;
  color: #fff;
}

.faq-a {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}

/* CTA Banner */
.cta-banner {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.2) 0%, rgba(139, 92, 246, 0.2) 100%);
  border: 1px solid rgba(59, 130, 246, 0.4);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.3) 0%, transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

/* Footer */
.ds-footer {
  background: #04060d;
  border-top: 1px solid var(--border-color);
  padding: 60px 0 40px;
  font-size: 14px;
  color: var(--text-muted);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-col h5 {
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  margin: 0 0 16px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: var(--text-secondary);
}

.footer-col ul li a:hover {
  color: var(--primary);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* Mobile Responsiveness */
@media (max-width: 991px) {
  .hero-title { font-size: 42px; }
  .bento-grid { grid-template-columns: 1fr; }
  .bento-card.span-2 { grid-column: span 1; }
  .comparison-box { grid-template-columns: 1fr; }
  .comparison-col.bad { border-right: 0; border-bottom: 1px solid var(--border-color); }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-mockup-wrapper { margin-top: 50px; }
}

@media (max-width: 768px) {
  .hero-title { font-size: 34px; }
  .ds-nav { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 14px; text-align: center; }
  .mockup-card-float { left: 0; bottom: -20px; width: 200px; }
}