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

:root {
    /* Corporate Color Palette */
    --primary-color: #1e40af;        /* Professional Blue */
    --primary-dark: #1e3a8a;         /* Darker Blue */
    --primary-light: #3b82f6;        /* Lighter Blue */
    --secondary-color: #64748b;       /* Professional Gray */
    --accent-color: #f59e0b;          /* Professional Gold */
    
    /* Neutral Colors */
    --text-primary: #0f172a;          /* Almost Black */
    --text-secondary: #475569;        /* Medium Gray */
    --text-light: #64748b;            /* Light Gray */
    --background: #ffffff;            /* Pure White */
    --background-alt: #f8fafc;        /* Light Gray Background */
    --border-color: #e2e8f0;          /* Light Border */
    --border-light: #f1f5f9;         /* Very Light Border */
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;
    
    /* Spacing */
    --spacing-xs: 0.25rem;    /* 4px */
    --spacing-sm: 0.5rem;     /* 8px */
    --spacing-md: 1rem;       /* 16px */
    --spacing-lg: 1.5rem;     /* 24px */
    --spacing-xl: 2rem;       /* 32px */
    --spacing-2xl: 3rem;      /* 48px */
    --spacing-3xl: 4rem;      /* 64px */
    
    /* Border Radius */
    --radius-sm: 0.25rem;     /* 4px */
    --radius-md: 0.5rem;      /* 8px */
    --radius-lg: 0.75rem;     /* 12px */
    --radius-xl: 1rem;        /* 16px */
    
    /* Shadows */
    --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-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
    
    /* Transitions */
    --transition-fast: 0.15s ease-in-out;
    --transition-normal: 0.3s ease-in-out;
    --transition-slow: 0.5s ease-in-out;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-primary);
    font-weight: var(--font-weight-normal);
    line-height: 1.6;
    color: var(--text-primary);
    background-color: var(--background);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: var(--font-weight-semibold);
    line-height: 1.3;
    color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1.125rem; }

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

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

a:hover {
    color: var(--primary-dark);
}

/* 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-md);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    white-space: nowrap;
}

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

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

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

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

/* Banner Styles */
.banner {
    background: white;
    padding: var(--spacing-lg) 0;
}

.banner-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-xl);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.logo-img {
    width: 60px;
    height: 60px;
    object-fit: contain;
}

.site-title {
    font-size: 1.75rem;
    font-weight: var(--font-weight-bold);
    margin: 0;
    line-height: 1.2;
}

.site-title a {
    color: var(--primary-color);
    text-decoration: none;
}

.site-title a:hover {
    color: var(--primary-dark);
}

.establishment-date {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin: 0;
    margin-top: var(--spacing-xs);
}

.header-actions {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.login-link {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.login-link:hover {
    background: var(--primary-color);
    color: white;
}

.search-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.search-input {
    padding: var(--spacing-sm) var(--spacing-md);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    font-size: 0.9rem;
    min-width: 200px;
}

.search-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.search-btn:hover {
    background: var(--primary-dark);
}

/* Main Navigation */
.main-navigation {
    background: var(--background-alt);
    border-bottom: 1px solid var(--border-color);
    border-top: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

/* Navigation */
.nav-menu {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    list-style: none;
}

.nav-item {
    position: relative;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-sm) var(--spacing-md);
    font-weight: var(--font-weight-medium);
    font-size: 0.9rem;
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: rgba(30, 64, 175, 0.08);
}

.arrow-down {
    width: 0;
    height: 0;
    border-left: 3px solid transparent;
    border-right: 3px solid transparent;
    border-top: 4px solid currentColor;
    margin-left: var(--spacing-xs);
}

/* Dropdown Menu */
.dropdown-menu {
    position: absolute;
    top: calc(100% + 2px);
    left: 0;
    min-width: 180px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: 1001;
    list-style: none;
    padding: var(--spacing-xs);
}

.dropdown:hover .dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-menu a {
    display: block;
    padding: var(--spacing-sm) var(--spacing-md);
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    font-size: 0.85rem;
    line-height: 1.4;
}

.dropdown-menu a:hover {
    color: var(--primary-color);
    background-color: rgba(30, 64, 175, 0.06);
}

/* Mobile Menu Toggle */
.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 4px;
    padding: var(--spacing-sm);
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 24px;
    height: 3px;
    background-color: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

/* Image Slider Section */
.image-slider {
    position: relative;
    height: 60vh;
    overflow: hidden;
    background: #000;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    animation: slide-show 20s infinite;
}

.slide {
    min-width: 100%;
    height: 100%;
    flex-shrink: 0;
    position: relative;
}

.slide img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center;
    display: block;
}

@keyframes slide-show {
    0% { transform: translateX(0); }
    10% { transform: translateX(0); }
    12.5% { transform: translateX(-100%); }
    22.5% { transform: translateX(-100%); }
    25% { transform: translateX(-200%); }
    35% { transform: translateX(-200%); }
    37.5% { transform: translateX(-300%); }
    47.5% { transform: translateX(-300%); }
    50% { transform: translateX(-400%); }
    60% { transform: translateX(-400%); }
    62.5% { transform: translateX(-500%); }
    72.5% { transform: translateX(-500%); }
    75% { transform: translateX(-600%); }
    85% { transform: translateX(-600%); }
    87.5% { transform: translateX(-700%); }
    97.5% { transform: translateX(-700%); }
    100% { transform: translateX(0); }
}

/* Main Content Section */
.main-content {
    padding: var(--spacing-3xl) 0;
    background: white;
}

.content-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-3xl);
    align-items: start;
}

.welcome-section h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    color: var(--primary-color);
    margin-bottom: var(--spacing-lg);
}

.welcome-section p {
    color: var(--text-secondary);
    line-height: 1.7;
    margin-bottom: var(--spacing-lg);
    text-align: justify;
}

.quick-links {
    background: var(--background-alt);
    padding: var(--spacing-xl);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border-light);
}

.sidebar-nav ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-nav li {
    margin-bottom: var(--spacing-md);
}

.sidebar-nav li:last-child {
    margin-bottom: 0;
}

.sidebar-nav a {
    display: block;
    padding: var(--spacing-md);
    color: var(--text-primary);
    text-decoration: none;
    background: white;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
    font-weight: var(--font-weight-medium);
    text-transform: lowercase;
}

.sidebar-nav a:hover {
    background: var(--primary-color);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Mobile responsive styles for new sections */
@media (max-width: 768px) {
    .content-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .banner-content {
        flex-direction: column;
        gap: var(--spacing-lg);
        text-align: center;
    }
    
    .header-actions {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .search-input {
        min-width: auto;
        width: 100%;
    }
    
    .image-slider {
        height: 40vh;
    }
    
    .welcome-section h3 {
        font-size: 1.25rem;
    }
}

/* Section Styles */
section {
    padding: var(--spacing-3xl) 0;
}

.section-header {
    text-align: center;
    margin-bottom: var(--spacing-3xl);
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.section-header p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* Services Section */
.services {
    background-color: var(--background-alt);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-xl);
}

.service-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-2xl);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--primary-light));
    transform: translateX(-100%);
    transition: transform var(--transition-normal);
}

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

.service-card:hover::before {
    transform: translateX(0);
}

.service-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-lg);
    color: white;
}

.service-card h3 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.service-link {
    color: var(--primary-color);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.service-link:hover {
    color: var(--primary-dark);
    transform: translateX(4px);
}

/* Mission Vision Section */
.mission-vision-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-2xl);
    max-width: 1000px;
    margin: 0 auto;
}

.mission-card,
.vision-card {
    background: white;
    border-radius: var(--radius-xl);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

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

.card-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: var(--spacing-xl);
}

.card-header h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    color: white;
    margin: 0;
}

.card-content {
    padding: var(--spacing-xl);
}

.card-content p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
}

/* News Section */
.news {
    background-color: var(--background-alt);
}

.news-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.news-card {
    background: white;
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    border: 1px solid var(--border-light);
    transition: all var(--transition-normal);
}

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

.news-date {
    display: inline-block;
    padding: var(--spacing-xs) var(--spacing-md);
    background-color: var(--background-alt);
    color: var(--primary-color);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-md);
}

.news-card h4 {
    font-size: 1.25rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.news-card p {
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: var(--spacing-lg);
}

.news-link {
    color: var(--primary-color);
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: all var(--transition-fast);
}

.news-link:hover {
    color: var(--primary-dark);
    transform: translateX(4px);
}

/* Footer */
.footer {
    background-color: var(--text-primary);
    color: white;
    padding: var(--spacing-3xl) 0 var(--spacing-xl);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.footer-logo img {
    width: 40px;
    height: 40px;
    object-fit: contain;
}

.footer-logo h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: white;
    margin: 0;
}

.footer-section p {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
}

.footer-section h4 {
    font-size: 1.125rem;
    font-weight: var(--font-weight-semibold);
    color: white;
    margin-bottom: var(--spacing-lg);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: var(--spacing-sm);
}

.footer-section ul li a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.footer-section ul li a:hover {
    color: white;
}

.contact-info p {
    margin-bottom: var(--spacing-md);
    color: rgba(255, 255, 255, 0.8);
}

.contact-info strong {
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: var(--spacing-lg);
    text-align: center;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    margin: 0;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-2xl);
        text-align: center;
    }
    
    .hero-title {
        font-size: 3rem;
    }
    
    .mission-vision-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: var(--spacing-xl);
    }
}

@media (max-width: 768px) {
    /* Mobile Navigation */
    .mobile-menu-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 100%;
        left: 0;
        right: 0;
        background: white;
        border-top: 1px solid var(--border-color);
        box-shadow: var(--shadow-lg);
        flex-direction: column;
        gap: 0;
        padding: var(--spacing-lg);
        transform: translateY(-100%);
        opacity: 0;
        visibility: hidden;
        transition: all var(--transition-normal);
    }
    
    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    .nav-item {
        width: 100%;
    }
    
    .nav-link {
        padding: var(--spacing-lg);
        justify-content: space-between;
        border-bottom: 1px solid var(--border-light);
    }
    
    .dropdown-menu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        border: none;
        background: var(--background-alt);
        margin-top: var(--spacing-sm);
    }
    
    /* Hero Section */
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
        gap: var(--spacing-md);
    }
    
    .hero-stats {
        flex-direction: row;
        justify-content: center;
        gap: var(--spacing-lg);
    }
    
    /* Sections */
    section {
        padding: var(--spacing-2xl) 0;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
    
    .services-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .news-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-lg);
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-xl);
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: var(--spacing-md);
    }
    
    .stat-item {
        padding: var(--spacing-lg);
    }
    
    .stat-number {
        font-size: 2rem;
    }
}

/* Page-specific styles (for internal pages) */
.page-header {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-light));
    color: white;
    padding: calc(60px + var(--spacing-3xl)) 0 var(--spacing-3xl);
    text-align: center;
}

.page-title {
    font-size: 2.5rem;
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--spacing-md);
    color: white;
}

.page-subtitle {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
}

.page-content {
    padding: var(--spacing-3xl) 0;
}

.content-section {
    margin-bottom: var(--spacing-3xl);
}

.content-section h2 {
    font-size: 2rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-lg);
    color: var(--text-primary);
}

.content-section h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
}

.content-section p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

/* Animation Classes */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: all var(--transition-slow);
}

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