/* LPxGP Landing Page - 2026 Modern Styles */

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

/* CSS Variables from design.md */
:root {
  /* Brand Colors */
  --color-navy: #1B3A5F;
  --color-gold: #D4A54A;
  --color-deep-navy: #0F1F30;
  --color-slate: #6B7280;
  --color-light-gray: #F3F4F6;
  --color-white: #FFFFFF;
  --color-charcoal: #1F2937;
  --color-success: #10B981;
  --color-error: #EF4444;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2rem;
  --space-xl: 3rem;
  --space-2xl: 4rem;
  --space-3xl: 6rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Transitions */
  --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  --shadow-2xl: 0 25px 50px rgba(0, 0, 0, 0.25);

  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
}

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

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

body {
  font-family: var(--font-family);
  color: var(--color-charcoal);
  line-height: 1.6;
  overflow-x: hidden;
  background-color: var(--color-white);
}

/* Smooth scrolling with reduced motion support */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

/* Focus styles for accessibility */
*:focus-visible {
  outline: 3px solid var(--color-gold);
  outline-offset: 2px;
}

*:focus:not(:focus-visible) {
  outline: none;
}

/* 2026 MODERN BUTTON STYLES */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2.5rem;
  min-height: 48px;
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  border: 2px solid transparent;
  white-space: nowrap;
}

/* Primary Button with Modern Hover Effect */
.btn-primary {
  background: linear-gradient(135deg, var(--color-gold) 0%, #C89B42 100%);
  color: var(--color-charcoal);
  box-shadow: var(--shadow-md), 0 0 0 0 rgba(212, 165, 74, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-xl), 0 0 20px rgba(212, 165, 74, 0.3);
  background: linear-gradient(135deg, #E0B55A 0%, var(--color-gold) 100%);
}

.btn-primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-sm);
}

/* Secondary Button with Glassmorphism */
.btn-secondary {
  background: rgba(27, 58, 95, 0.05);
  backdrop-filter: blur(10px);
  border-color: var(--color-navy);
  color: var(--color-navy);
}

.btn-secondary:hover {
  background: var(--color-navy);
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

/* 2026 CARD HOVER EFFECTS */
.card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: 2.5rem 2rem;
  transition: all var(--transition-slow);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(0, 0, 0, 0.05);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-2xl);
  padding: 2px;
  background: linear-gradient(135deg, transparent, rgba(212, 165, 74, 0.1));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition-base);
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: var(--shadow-2xl);
}

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

/* Feature Card Icon Animation */
.card .icon {
  transition: all var(--transition-base);
}

.card:hover .icon {
  transform: scale(1.1) rotate(5deg);
  color: var(--color-gold);
}

/* Pricing Card Special Effects */
.pricing-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  padding: 3rem 2rem;
  border: 2px solid rgba(0, 0, 0, 0.08);
  transition: all var(--transition-base);
  position: relative;
}

.pricing-card.recommended {
  border-color: var(--color-gold);
  box-shadow: 0 12px 24px rgba(212, 165, 74, 0.15);
  transform: scale(1.05);
}

.pricing-card.recommended::before {
  content: '⭐ RECOMMENDED';
  position: absolute;
  top: -16px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-gold), #C89B42);
  color: var(--color-charcoal);
  padding: 0.5rem 1.5rem;
  border-radius: 2rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  box-shadow: var(--shadow-lg);
}

.pricing-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-xl);
}

.pricing-card.recommended:hover {
  transform: translateY(-4px) scale(1.07);
}

/* GLASSMORPHISM NAVIGATION */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
}

.nav.scrolled {
  background: rgba(255, 255, 255, 0.95);
  border-bottom-color: rgba(0, 0, 0, 0.05);
  box-shadow: var(--shadow-sm);
}

/* Nav Link Hover Effect */
.nav-link {
  position: relative;
  padding: 0.5rem 1rem;
  color: var(--color-slate);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: all var(--transition-base);
  transform: translateX(-50%);
}

.nav-link:hover {
  color: var(--color-navy);
}

.nav-link:hover::after {
  width: 80%;
}

/* INPUT FIELDS WITH MODERN FOCUS */
.form-input,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  min-height: 48px;
  font-size: 1rem;
  font-family: var(--font-family);
  background-color: var(--color-white);
  color: var(--color-charcoal);
  border: 1px solid #D1D5DB;
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-gold);
  box-shadow: 0 0 0 3px rgba(212, 165, 74, 0.1),
              0 1px 3px rgba(0, 0, 0, 0.1);
  transform: translateY(-1px);
}

.form-textarea {
  min-height: 120px;
  resize: vertical;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: #9CA3AF;
}

/* SCROLL REVEAL ANIMATIONS */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Staggered animations for children */
.reveal.visible > *:nth-child(1) { transition-delay: 0.1s; }
.reveal.visible > *:nth-child(2) { transition-delay: 0.2s; }
.reveal.visible > *:nth-child(3) { transition-delay: 0.3s; }

/* GRADIENT TEXT */
.gradient-text {
  background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ANIMATED GRADIENT BACKGROUND */
@keyframes gradient-shift {
  0%, 100% {
    background-position: 0% 50%;
  }
  50% {
    background-position: 100% 50%;
  }
}

.hero-gradient {
  background: linear-gradient(
    135deg,
    #F3F4F6 0%,
    #FFFFFF 50%,
    #F9FAFB 100%
  );
  background-size: 200% 200%;
  animation: gradient-shift 15s ease infinite;
}

/* MOBILE MENU ANIMATION */
.mobile-menu {
  position: fixed;
  inset: 0;
  top: 64px;
  background: rgba(15, 31, 48, 0.98);
  backdrop-filter: blur(20px);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  z-index: 999;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu a {
  transform: translateX(-20px);
  opacity: 0;
  transition: all var(--transition-base);
  color: var(--color-white);
  padding: 1rem 2rem;
  display: block;
  font-size: 1.125rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-menu.open a {
  transform: translateX(0);
  opacity: 1;
}

.mobile-menu.open a:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.open a:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu.open a:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.open a:nth-child(4) { transition-delay: 0.25s; }

.mobile-menu a:hover {
  background: rgba(212, 165, 74, 0.1);
  color: var(--color-gold);
}

/* HAMBURGER ICON ANIMATION */
.hamburger {
  width: 28px;
  height: 20px;
  position: relative;
  cursor: pointer;
}

.hamburger span {
  display: block;
  position: absolute;
  height: 3px;
  width: 100%;
  background: var(--color-navy);
  border-radius: 3px;
  opacity: 1;
  left: 0;
  transform: rotate(0deg);
  transition: all var(--transition-fast);
}

.hamburger span:nth-child(1) { top: 0; }
.hamburger span:nth-child(2) { top: 8px; }
.hamburger span:nth-child(3) { top: 16px; }

.hamburger.active span:nth-child(1) {
  top: 8px;
  transform: rotate(135deg);
  background: var(--color-white);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  left: -60px;
}

.hamburger.active span:nth-child(3) {
  top: 8px;
  transform: rotate(-135deg);
  background: var(--color-white);
}

/* SUCCESS MESSAGE */
.success-message {
  text-align: center;
  padding: 3rem 2rem;
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(16, 185, 129, 0.05));
  border-radius: var(--radius-2xl);
  border: 2px solid var(--color-success);
}

.success-message svg {
  width: 64px;
  height: 64px;
  margin: 0 auto 1rem;
  color: var(--color-success);
}

/* RESPONSIVE UTILITIES */
@media (max-width: 767px) {
  .btn {
    width: 100%;
    min-height: 44px;
  }

  .card {
    padding: 2rem 1.5rem;
  }

  .pricing-card {
    padding: 2rem 1.5rem;
  }
}

/* UTILITY CLASSES */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 2rem;
}

@media (max-width: 767px) {
  .container {
    padding: 0 1.5rem;
  }
}

.section {
  padding: 6rem 0;
}

@media (max-width: 767px) {
  .section {
    padding: 4rem 0;
  }
}

/* LINK HOVER EFFECTS */
a {
  transition: all var(--transition-fast);
}

a:hover {
  color: var(--color-gold);
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}