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

:root {
  /* Color Palette */
  --primary: #F97316; /* Warm Orange */
  --primary-hover: #EA580C;
  --secondary: #0D9488; /* Playful Teal */
  --secondary-hover: #0F766E;
  --accent: #FCA5A5; /* Soft Peach */

  /* Neutrals */
  --bg-color: #FAFAFA;
  --surface-color: #FFFFFF;
  --text-main: #1F2937;
  --text-muted: #6B7280;
  --border-color: #E5E7EB;

  /* Typography */
  --font-main: 'Outfit', sans-serif;

  /* Shadows - Glassmorphism & Soft */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease-in-out;
  
  /* Border Radius */
  --radius-md: 12px;
  --radius-lg: 24px;
  --radius-full: 9999px;
}

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

html {
  scroll-behavior: smooth;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

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

ul {
  list-style: none;
}

/* =========================================================================
   Typography
   ========================================================================= */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: 1.5rem;
}

p {
  color: var(--text-muted);
  font-size: 1.125rem;
  margin-bottom: 1rem;
}

/* =========================================================================
   Layout & Utilities
   ========================================================================= */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5rem 0;
}

.text-center { text-align: center; }
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  font-family: var(--font-main);
  font-size: 1.125rem;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: white;
  box-shadow: 0 6px 20px rgba(249, 115, 22, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 10px 25px rgba(249, 115, 22, 0.4);
}

.btn-secondary {
  background-color: var(--surface-color);
  color: var(--text-main);
  border: 2px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}

/* Glassmorphism Card Style */
.glass-card {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-glass);
  padding: 2rem;
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.glass-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

/* =========================================================================
   Header & Navigation
   ========================================================================= */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-color);
  transition: all var(--transition-fast);
}

.header.scrolled {
  padding: 0.5rem 0;
  box-shadow: var(--shadow-sm);
}

.nav-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 80px;
}

.logo {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo span {
  color: var(--text-main);
}

.nav-menu {
  display: flex;
  gap: 2rem;
  align-items: center;
}

.nav-link {
  font-weight: 500;
  color: var(--text-main);
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -4px;
  left: 0;
  background-color: var(--primary);
  transition: width var(--transition-fast);
}

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

.nav-link:hover,
.nav-link.active {
  color: var(--primary);
}

/* Mobile Toggle */
.mobile-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.hamburger,
.hamburger::before,
.hamburger::after {
  content: '';
  display: block;
  background-color: var(--text-main);
  height: 3px;
  width: 25px;
  border-radius: 3px;
  transition: all var(--transition-fast);
}

.hamburger::before { transform: translateY(-8px); }
.hamburger::after { transform: translateY(5px); }

/* Toggle Active State */
.mobile-toggle.active .hamburger { background-color: transparent; }
.mobile-toggle.active .hamburger::before { transform: translateY(0) rotate(45deg); }
.mobile-toggle.active .hamburger::after { transform: translateY(-3px) rotate(-45deg); }

/* =========================================================================
   Footer
   ========================================================================= */
.footer {
  background-color: #111827;
  color: #F3F4F6;
  padding: 5rem 0 2rem;
  margin-top: 4rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-col h3 {
  color: white;
  margin-bottom: 1.5rem;
  font-size: 1.25rem;
}

.footer-col p {
  color: #9CA3AF;
  font-size: 1rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  color: #9CA3AF;
}

.footer-links a:hover {
  color: var(--primary);
  padding-left: 5px;
}

.footer-bottom {
  text-align: center;
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.1);
  color: #9CA3AF;
}

/* =========================================================================
   Responsive Media Queries
   ========================================================================= */
@media (max-width: 768px) {
  .mobile-toggle {
    display: block;
  }
  
  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 400px;
    height: 100vh;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right var(--transition-normal);
    box-shadow: -10px 0 30px rgba(0,0,0,0.1);
  }

  .nav-menu.active {
    right: 0;
  }

  .nav-menu li {
    margin: 1.5rem 0;
  }

  .nav-link {
    font-size: 1.5rem;
  }
  
  .section {
    padding: 3rem 0;
  }
}

/* =========================================================================
   Animations
   ========================================================================= */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in-up {
  animation: fadeInUp 0.8s ease forwards;
}

.delay-100 { animation-delay: 0.1s; }
.delay-200 { animation-delay: 0.2s; }
.delay-300 { animation-delay: 0.3s; }