/* ========================================
   Global Design System - Consistent UI
   ======================================== */

:root {
    /* Brand Colors - Pakistani Green & Gold Theme */
    --primary-color: #01411C;
    --primary-light: #0A6638;
    --primary-dark: #012b12;
    --accent-color: #FFD700;
    --accent-light: #FDB931;
    --accent-dark: #B8860B;

    /* Semantic Colors */
    --success-color: #16a34a;
    --danger-color: #dc2626;
    --warning-color: #f59e0b;
    --info-color: #0ea5e9;

    /* Text Colors */
    --text-primary: #1E293B;
    --text-secondary: #475569;
    --text-muted: #64748B;
    --text-light: #F8FAFC;
    --text-white: #FFFFFF;

    /* Background Colors */
    --bg-primary: #F8FAFC;
    --bg-secondary: #F1F5F9;
    --bg-tertiary: #E2E8F0;
    --bg-white: #FFFFFF;
    --bg-dark: #01411C;
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-dark: rgba(1, 65, 28, 0.8);

    /* Gradients */
    --primary-gradient: linear-gradient(135deg, #01411C 0%, #0A6638 100%);
    --secondary-gradient: linear-gradient(135deg, #FFD700 0%, #FDB931 100%);
    --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --dark-gradient: linear-gradient(135deg, #012b12 0%, #01411C 100%);
    --light-gradient: linear-gradient(135deg, #F8FAFC 0%, #F1F5F9 50%, #E2E8F0 100%);
    --hero-gradient: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-light) 100%);

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
    --shadow-xl: 0 16px 60px rgba(0, 0, 0, 0.16);
    --shadow-brand: 0 25px 50px -12px rgba(1, 65, 28, 0.25);
    --shadow-glow: 0 0 30px rgba(10, 102, 56, 0.2);
    --shadow-gold: 0 0 30px rgba(212, 175, 55, 0.2);

    /* Border Radius */
    --radius-xs: 4px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    --radius-3xl: 32px;
    --radius-full: 50%;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;
    --spacing-4xl: 6rem;

    /* Section Padding */
    --section-padding: 120px;
    --section-padding-sm: 80px;
    --section-padding-xs: 60px;

    /* Typography */
    --font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    --font-weight-extrabold: 800;
    --font-weight-black: 900;

    /* Line Heights */
    --line-height-tight: 1.1;
    --line-height-normal: 1.6;
    --line-height-relaxed: 1.8;

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

    /* Z-Index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

/* ========================================
   Global Base Styles
   ======================================== */

/* Enhanced Body Styles */
body {
    font-family: var(--font-family);
    color: var(--text-primary);
    background-color: var(--bg-primary);
    background-image:
        radial-gradient(circle at 0% 0%, rgba(1, 65, 28, 0.08) 0%, transparent 50%),
        radial-gradient(circle at 100% 100%, rgba(255, 215, 0, 0.08) 0%, transparent 50%);
    background-attachment: fixed;
    overflow-x: hidden;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: var(--line-height-normal);
    font-size: 16px;
}

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    box-sizing: border-box;
}

/* Enhanced Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: var(--font-weight-bold);
    letter-spacing: -0.02em;
    color: var(--text-primary);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-lg);
}

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

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

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

h5 {
    font-size: clamp(1.125rem, 2vw, 1.25rem);
}

h6 {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

/* Enhanced Links */
a {
    text-decoration: none;
    transition: var(--transition-normal);
    color: var(--primary-color);
}
a:hover {
    color: var(--primary-light);
}

/* ========================================
   Section System
   ======================================== */

.section {
    padding: var(--section-padding) 0;
}

.section-sm {
    padding: var(--section-padding-sm) 0;
}

.section-xs {
    padding: var(--section-padding-xs) 0;
}

@media (max-width: 768px) {
    .section {
        padding: var(--section-padding-sm) 0;
    }

    .section-sm {
        padding: var(--section-padding-xs) 0;
    }

    .section-xs {
        padding: calc(var(--section-padding-xs) * 0.8) 0;
    }
}

/* Container Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-md);
    }
}

/* ========================================
   Component System
   ======================================== */

/* Cards */
.card {
    background: var(--bg-white);
    border: 1px solid var(--bg-tertiary);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transition: var(--transition-smooth);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-lg);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: var(--transition-smooth);
    cursor: pointer;
    font-size: 0.95rem;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--text-white);
    box-shadow: var(--shadow-brand);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    color: var(--text-white);
}

.btn-secondary {
    background: var(--secondary-gradient);
    color: var(--text-primary);
    box-shadow: var(--shadow-gold);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-gold);
    color: var(--text-primary);
}

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

.btn-outline:hover {
    background: var(--primary-color);
    color: var(--text-white);
}

/* ========================================
   Section Header Components
   ======================================== */

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-4xl);
}

.section-subtitle {
    display: inline-block;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(10px);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-full);
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-lg);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--font-weight-black);
    color: var(--text-primary);
    margin-bottom: var(--spacing-lg);
    line-height: var(--line-height-tight);
}

.section-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
    line-height: var(--line-height-relaxed);
}

.section-link {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    background: var(--primary-gradient);
    color: var(--text-white);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    transition: var(--transition-smooth);
    box-shadow: var(--shadow-brand);
}

.section-link:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
    color: var(--text-white);
    text-decoration: none;
}

/* ========================================
   Grid System
   ======================================== */

.grid {
    display: grid;
    gap: var(--spacing-xl);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

@media (max-width: 768px) {
    .grid {
        /* Default to 1 column, but allow overrides */
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }

    /* Allow 2 columns on mobile if explicitly requested */
    .grid-2 {
        grid-template-columns: repeat(2, 1fr) !important;
    }
}

/* ========================================
   Background Variants
   ======================================== */

.bg-gradient {
    background: var(--light-gradient);
    position: relative;
}

.bg-white {
    background: var(--bg-white);
}

.bg-dark {
    background: var(--hero-gradient);
    color: var(--text-white);
}

.bg-dark .section-title,
.bg-dark .section-subtitle {
    color: var(--text-white);
}

.bg-dark .section-description {
    color: var(--text-light);
}

/* ========================================
   Animation Classes
   ======================================== */

.animate-in {
    opacity: 0;
    transform: translateY(30px);
    animation: fadeInUp 0.8s ease forwards;
}

.animate-in.delay-1 {
    animation-delay: 0.1s;
}

.animate-in.delay-2 {
    animation-delay: 0.2s;
}

.animate-in.delay-3 {
    animation-delay: 0.3s;
}

.animate-in.delay-4 {
    animation-delay: 0.4s;
}

@keyframes fadeInUp {
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========================================
   Hero Slider Enhancement
   ======================================== */

.hero-slider {
    position: relative;
    overflow: hidden;
}

.hero-slide {
    min-height: 80vh;
    display: flex;
    align-items: center;
    position: relative;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--bg-glass);
    backdrop-filter: blur(20px);
    border: 1px solid var(--primary-color);
    border-radius: var(--radius-full);
    color: var(--primary-color);
    font-weight: var(--font-weight-semibold);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: var(--spacing-xl);
    box-shadow: var(--shadow-sm);
}

.hero-title {
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: var(--font-weight-black);
    line-height: var(--line-height-tight);
    margin-bottom: var(--spacing-xl);
    color: var(--text-white);
    background: linear-gradient(135deg, var(--text-light) 0%, var(--text-white) 50%, var(--bg-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-light);
    line-height: var(--line-height-relaxed);
    max-width: 600px;
    margin-bottom: var(--spacing-2xl);
    text-shadow: 0 1px 3px rgba(0, 0, 0, 0.8);
    background: rgba(0, 0, 0, 0.1);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    display: inline-block;
}

/* ========================================
   Responsive Enhancements
   ======================================== */

@media (max-width: 1200px) {
    .hero-slide {
        min-height: 70vh;
        padding: var(--spacing-3xl) 0;
    }
}

@media (max-width: 992px) {
    .hero-slide {
        min-height: 60vh;
        padding: var(--spacing-2xl) 0;
    }

    .section {
        padding: var(--section-padding-sm) 0;
    }
}

@media (max-width: 768px) {
    .hero-slide {
        min-height: 50vh;
        padding: var(--spacing-xl) 0;
    }

    .hero-title {
        font-size: clamp(2.5rem, 8vw, 3.5rem);
    }

    .section-title {
        font-size: clamp(2rem, 6vw, 2.8rem);
    }

    .grid {
        grid-template-columns: 1fr;
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: 0.9rem;
    }
}