/* ============================================
   ANANT YUVA PRATISHTHAN — DESIGN SYSTEM
   Version: 1.0
   Palette: Saffron, Cream, Deep Green, Gold
   ============================================ */

/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,500;0,600;0,700;0,800;0,900;1,400;1,500;1,600;1,700&family=Inter:wght@300;400;500;600;700;800;900&family=Poppins:wght@300;400;500;600;700;800;900&display=swap');

/* ---- CSS Custom Properties ---- */
:root {
  /* Primary Colors */
  --saffron: #E8913A;
  --saffron-soft: #F4B97A;
  --saffron-light: #FDF0E0;
  --saffron-warm: #D47B28;
  --warm-beige: #FAF5ED;
  --cream: #FFF9F0;
  --cream-dark: #F5EDE0;

  /* Secondary Colors */
  --deep-green: #1B5E3B;
  --green-medium: #2E7D52;
  --green-light: #4CAF7D;
  --green-pale: #E8F5EE;
  --green-muted: #3A755A;

  /* Accent Colors */
  --gold: #C5A55A;
  --gold-light: #D4BA78;
  --gold-shimmer: #E8D5A0;
  --gold-dark: #A08838;

  /* Neutrals */
  --white: #FFFFFF;
  --off-white: #FAFAF8;
  --light-grey: #F0EEEA;
  --medium-grey: #B8B5AD;
  --dark-grey: #6B6860;
  --charcoal: #3A3832;
  --near-black: #1A1918;

  /* Functional */
  --text-primary: #2A2824;
  --text-secondary: #5A5750;
  --text-muted: #8A8680;
  --text-on-dark: #FAF5ED;
  --text-on-green: #E8F5EE;

  /* Typography */
  --font-heading: 'Playfair Display', 'Georgia', serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;
  --font-accent: 'Poppins', 'Helvetica Neue', sans-serif;

  /* Font Sizes - Fluid */
  --fs-hero: clamp(2.8rem, 5vw + 1rem, 5.5rem);
  --fs-h1: clamp(2.2rem, 4vw + 0.5rem, 4rem);
  --fs-h2: clamp(1.8rem, 3vw + 0.5rem, 3rem);
  --fs-h3: clamp(1.4rem, 2vw + 0.3rem, 2rem);
  --fs-h4: clamp(1.1rem, 1.5vw + 0.2rem, 1.5rem);
  --fs-body: clamp(0.95rem, 1vw + 0.1rem, 1.1rem);
  --fs-small: clamp(0.8rem, 0.9vw, 0.95rem);
  --fs-caption: 0.8rem;
  --fs-overline: 0.75rem;

  /* Line Heights */
  --lh-tight: 1.1;
  --lh-heading: 1.25;
  --lh-body: 1.7;
  --lh-relaxed: 1.9;

  /* Spacing Scale */
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;
  --space-5xl: 8rem;
  --space-6xl: 12rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-subtle: 0 2px 8px rgba(26, 25, 24, 0.04);
  --shadow-soft: 0 4px 16px rgba(26, 25, 24, 0.06);
  --shadow-medium: 0 8px 32px rgba(26, 25, 24, 0.08);
  --shadow-strong: 0 16px 48px rgba(26, 25, 24, 0.12);
  --shadow-elevated: 0 24px 64px rgba(26, 25, 24, 0.16);
  --shadow-glow-saffron: 0 8px 32px rgba(232, 145, 58, 0.2);
  --shadow-glow-green: 0 8px 32px rgba(27, 94, 59, 0.15);
  --shadow-glow-gold: 0 8px 32px rgba(197, 165, 90, 0.2);

  /* Glassmorphism */
  --glass-bg: rgba(255, 255, 255, 0.65);
  --glass-bg-strong: rgba(255, 255, 255, 0.8);
  --glass-bg-dark: rgba(26, 25, 24, 0.6);
  --glass-bg-saffron: rgba(244, 185, 122, 0.15);
  --glass-bg-green: rgba(27, 94, 59, 0.1);
  --glass-border: rgba(255, 255, 255, 0.3);
  --glass-border-strong: rgba(255, 255, 255, 0.5);
  --blur-amount: 20px;
  --blur-strong: 40px;

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition-slow: 0.7s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-elastic: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);

  /* Layout */
  --max-width: 1400px;
  --max-width-narrow: 1000px;
  --max-width-wide: 1600px;
  --nav-height: 80px;
  --section-padding: clamp(4rem, 8vw, 8rem);
}

/* ---- Reset & Base ---- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text-primary);
  background: var(--cream);
  overflow-x: hidden;
}

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

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

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
}

ul, ol {
  list-style: none;
}

/* ---- Typography ---- */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: var(--lh-heading);
  color: var(--text-primary);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); }

.text-hero {
  font-size: var(--fs-hero);
  font-weight: 800;
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
}

.text-overline {
  font-family: var(--font-accent);
  font-size: var(--fs-overline);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: var(--saffron);
}

.text-accent {
  font-family: var(--font-accent);
}

/* ---- Container ---- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 4vw, 3rem);
}

.container-narrow {
  max-width: var(--max-width-narrow);
}

.container-wide {
  max-width: var(--max-width-wide);
}

/* ---- Section ---- */
.section {
  padding: var(--section-padding) 0;
  position: relative;
}

.section-bg-cream { background: var(--cream); }
.section-bg-white { background: var(--white); }
.section-bg-saffron-light { background: var(--saffron-light); }
.section-bg-green { background: var(--deep-green); color: var(--text-on-dark); }
.section-bg-green-pale { background: var(--green-pale); }
.section-bg-charcoal { background: var(--charcoal); color: var(--text-on-dark); }

/* ---- Section Header ---- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-4xl);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

.section-header .text-overline {
  margin-bottom: var(--space-md);
  display: block;
}

.section-header h2 {
  margin-bottom: var(--space-lg);
}

.section-header p {
  color: var(--text-secondary);
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
}

/* ---- Glassmorphism Card ---- */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--blur-amount));
  -webkit-backdrop-filter: blur(var(--blur-amount));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: all var(--transition-smooth);
}

.glass-card:hover {
  background: var(--glass-bg-strong);
  box-shadow: var(--shadow-medium);
  transform: translateY(-4px);
}

.glass-card-dark {
  background: var(--glass-bg-dark);
  border-color: rgba(255, 255, 255, 0.1);
  color: var(--text-on-dark);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 14px 32px;
  border-radius: var(--radius-full);
  font-family: var(--font-accent);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent, rgba(255,255,255,0.2), transparent);
  transform: translateX(-100%);
  transition: transform 0.5s ease;
}

.btn:hover::after {
  transform: translateX(100%);
}

.btn-primary {
  background: linear-gradient(135deg, var(--saffron), var(--saffron-warm));
  color: var(--white);
  box-shadow: var(--shadow-glow-saffron);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(232, 145, 58, 0.35);
}

.btn-green {
  background: linear-gradient(135deg, var(--deep-green), var(--green-medium));
  color: var(--white);
  box-shadow: var(--shadow-glow-green);
}

.btn-green:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(27, 94, 59, 0.3);
}

.btn-outline {
  border: 2px solid var(--saffron);
  color: var(--saffron);
  background: transparent;
}

.btn-outline:hover {
  background: var(--saffron);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline-white {
  border: 2px solid rgba(255,255,255,0.5);
  color: var(--white);
  background: transparent;
}

.btn-outline-white:hover {
  background: rgba(255,255,255,0.15);
  border-color: var(--white);
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-dark));
  color: var(--white);
  box-shadow: var(--shadow-glow-gold);
}

/* ---- Image Styling ---- */
.img-contain {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.img-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.img-rounded {
  border-radius: var(--radius-lg);
}

.img-rounded-xl {
  border-radius: var(--radius-xl);
}

/* ---- Grid Layouts ---- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-2xl);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-2xl);
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
}

/* ---- Badge ---- */
.badge {
  display: inline-block;
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-family: var(--font-accent);
  font-size: var(--fs-caption);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.badge-saffron {
  background: var(--saffron-light);
  color: var(--saffron-warm);
}

.badge-green {
  background: var(--green-pale);
  color: var(--deep-green);
}

/* ---- Divider ---- */
.divider {
  width: 60px;
  height: 3px;
  background: linear-gradient(90deg, var(--saffron), var(--gold));
  border-radius: var(--radius-full);
  margin: var(--space-lg) 0;
}

.divider-center {
  margin-left: auto;
  margin-right: auto;
}

/* ---- Scroll Animations ---- */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.reveal-left {
  opacity: 0;
  transform: translateX(-60px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-left.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(60px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-right.active {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

.reveal-scale.active {
  opacity: 1;
  transform: scale(1);
}

/* ---- Responsive ---- */
@media (max-width: 1200px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 992px) {
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .grid-3 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr; }
  :root {
    --nav-height: 70px;
  }
}

@media (max-width: 480px) {
  .btn {
    padding: 12px 24px;
    font-size: 0.75rem;
  }
}