/* ============================================================
   LienOS Marketing Site — Custom Styles
   ============================================================ */

/* --- Google Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

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

/* --- Scroll Animation System --- */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1),
              transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
}

.animate-on-scroll.animate-in {
  opacity: 1;
  transform: translateY(0);
}

.animate-on-scroll[data-delay="100"] { transition-delay: 100ms; }
.animate-on-scroll[data-delay="200"] { transition-delay: 200ms; }
.animate-on-scroll[data-delay="300"] { transition-delay: 300ms; }
.animate-on-scroll[data-delay="400"] { transition-delay: 400ms; }
.animate-on-scroll[data-delay="500"] { transition-delay: 500ms; }

/* --- Hero Mesh Gradient Background --- */
.hero-gradient {
  background:
    radial-gradient(ellipse 80% 60% at 50% 0%, rgba(59, 130, 246, 0.15) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 20%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
    radial-gradient(ellipse 50% 40% at 20% 30%, rgba(139, 92, 246, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, #020617 0%, #0F172A 50%, #1E293B 100%);
}

/* --- Grid Pattern Overlay --- */
.grid-pattern {
  background-image:
    linear-gradient(rgba(59, 130, 246, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
}

/* --- Dot Pattern --- */
.dot-pattern {
  background-image: radial-gradient(rgba(59, 130, 246, 0.08) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* --- Glow Effects --- */
.glow-blue {
  box-shadow: 0 0 60px rgba(59, 130, 246, 0.15),
              0 0 120px rgba(59, 130, 246, 0.05);
}

.glow-blue-sm {
  box-shadow: 0 0 30px rgba(59, 130, 246, 0.1);
}

/* --- Gradient Text --- */
.gradient-text {
  background: linear-gradient(135deg, #ffffff 0%, #94a3b8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.gradient-text-blue {
  background: linear-gradient(135deg, #60a5fa 0%, #818cf8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- Navbar --- */
.navbar {
  transition: background-color 0.3s ease, backdrop-filter 0.3s ease, border-color 0.3s ease;
}

.navbar.scrolled {
  background-color: rgba(2, 6, 23, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(59, 130, 246, 0.1);
}

/* --- Button Styles --- */
.btn-primary {
  background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.btn-secondary:hover {
  background-color: rgba(59, 130, 246, 0.1);
  border-color: rgba(59, 130, 246, 0.3);
  transform: translateY(-1px);
}

/* --- Card Styles --- */
.feature-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.5) 0%, rgba(15, 23, 42, 0.8) 100%);
  border: 1px solid rgba(59, 130, 246, 0.08);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.feature-card:hover {
  border-color: rgba(59, 130, 246, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3),
              0 0 40px rgba(59, 130, 246, 0.05);
}

/* --- Pricing Card --- */
.pricing-card {
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.6) 0%, rgba(15, 23, 42, 0.9) 100%);
  border: 1px solid rgba(59, 130, 246, 0.08);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.pricing-card:hover {
  border-color: rgba(59, 130, 246, 0.15);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border-color: rgba(59, 130, 246, 0.3);
  background: linear-gradient(135deg, rgba(30, 41, 59, 0.7) 0%, rgba(15, 23, 42, 0.95) 100%);
  box-shadow: 0 0 50px rgba(59, 130, 246, 0.1);
}

/* --- Section Divider --- */
.section-divider {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(59, 130, 246, 0.15) 50%,
    transparent 100%
  );
}

/* --- Icon Container --- */
.icon-container {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(99, 102, 241, 0.1) 100%);
  border: 1px solid rgba(59, 130, 246, 0.1);
}

/* --- Stats Counter Animation --- */
@keyframes countUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.stat-number {
  animation: countUp 0.6s ease-out forwards;
}

/* --- Mobile Menu --- */
.mobile-menu {
  transform: translateX(100%);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.mobile-menu.open {
  transform: translateX(0);
}

/* --- Form Focus States --- */
.form-input:focus {
  outline: none;
  border-color: rgba(59, 130, 246, 0.5);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* --- Badge --- */
.badge {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.15) 0%, rgba(99, 102, 241, 0.1) 100%);
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.badge-coming-soon {
  background: linear-gradient(135deg, rgba(139, 92, 246, 0.2) 0%, rgba(99, 102, 241, 0.15) 100%);
  border: 1px solid rgba(139, 92, 246, 0.3);
  color: #c4b5fd;
}

/* --- Testimonial Quote Mark --- */
.quote-mark {
  font-size: 6rem;
  line-height: 1;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.3) 0%, rgba(99, 102, 241, 0.15) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* --- FAQ Accordion --- */
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              padding 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

.faq-answer.open {
  max-height: 200px;
}

.faq-chevron {
  transition: transform 0.3s ease;
}

.faq-chevron.open {
  transform: rotate(180deg);
}

/* --- Floating Orbs (decorative) --- */
@keyframes float {
  0%, 100% { transform: translateY(0px) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

.floating-orb {
  animation: float 8s ease-in-out infinite;
}

.floating-orb:nth-child(2) {
  animation-delay: -3s;
  animation-duration: 10s;
}

.floating-orb:nth-child(3) {
  animation-delay: -5s;
  animation-duration: 12s;
}

/* --- Pulse ring on CTA --- */
@keyframes pulse-ring {
  0% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0.4); }
  70% { box-shadow: 0 0 0 12px rgba(37, 99, 235, 0); }
  100% { box-shadow: 0 0 0 0 rgba(37, 99, 235, 0); }
}

.pulse-cta {
  animation: pulse-ring 2.5s cubic-bezier(0.16, 1, 0.3, 1) infinite;
}

/* --- Footer gradient top border --- */
.footer-gradient-border {
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(59, 130, 246, 0.2) 20%,
    rgba(99, 102, 241, 0.2) 50%,
    rgba(59, 130, 246, 0.2) 80%,
    transparent 100%
  );
}

/* --- Smooth link underline --- */
.nav-link {
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, #3B82F6, #818cf8);
  transition: width 0.3s ease;
  border-radius: 1px;
}

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

/* --- Legal page styles --- */
.legal-content h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: #f1f5f9;
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.legal-content h3 {
  font-size: 1.125rem;
  font-weight: 600;
  color: #e2e8f0;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.legal-content p {
  color: #94a3b8;
  line-height: 1.8;
  margin-bottom: 1rem;
}

.legal-content ul {
  list-style-type: disc;
  padding-left: 1.5rem;
  margin-bottom: 1rem;
}

.legal-content li {
  color: #94a3b8;
  line-height: 1.8;
  margin-bottom: 0.5rem;
}

/* --- Responsive overrides --- */
@media (max-width: 768px) {
  .hero-gradient {
    background:
      radial-gradient(ellipse 100% 60% at 50% 0%, rgba(59, 130, 246, 0.12) 0%, transparent 60%),
      linear-gradient(180deg, #020617 0%, #0F172A 50%, #1E293B 100%);
  }
}