/* ========================================
   ICMS Education System - Main Stylesheet
   Modern, Clean, Responsive Design 2026
   ======================================== */

/* ========== ROOT VARIABLES ========== */
:root {
    --primary-color: #006A34;
    --secondary-color: #FDB913;
    --dark-color: #1a1a1a;
    --light-color: #f5f5f5;
    --text-color: #333;
    --white: #ffffff;
    --border-radius: 8px;
    --transition: all 0.3s ease;
    --shadow: 0 2px 10px rgba(0,0,0,0.1);
    --shadow-hover: 0 4px 20px rgba(0,0,0,0.15);
}

/* ========== RESET & BASE ========== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--white);
}

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

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

ul {
    list-style: none;
}

/* ========== HEADER STYLES ========== */
.main-header {
    background: var(--white);
    box-shadow: var(--shadow);
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 3px solid var(--primary-color);
}

.header-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-img {
    width: 50px;
    height: 50px;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
}

.logo-subtitle {
    font-size: 0.75rem;
    color: var(--text-color);
    font-weight: 400;
}

/* Desktop Navigation */
.desktop-nav {
    display: flex;
    gap: 2rem;
}

.desktop-nav a {
    color: var(--text-color);
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.desktop-nav a:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* Hamburger Menu */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    padding: 8px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background-color: var(--primary-color);
    border-radius: 2px;
    transition: var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 80px;
    left: 0;
    width: 100%;
    background: var(--white);
    box-shadow: var(--shadow);
    padding: 1rem 0;
    z-index: 999;
}

.mobile-menu.active {
    display: block;
}

.mobile-menu a {
    display: block;
    padding: 1rem 2rem;
    color: var(--text-color);
    border-bottom: 1px solid var(--light-color);
    transition: var(--transition);
}

.mobile-menu a:hover {
    background-color: var(--primary-color);
    color: var(--white);
}

/* ========== MAIN CONTENT ========== */
.main-content {
    min-height: 60vh;
    padding: 2rem 0;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ========== HERO SECTION ========== */
.hero-section {
    background: linear-gradient(135deg, var(--primary-color), #008844);
    color: var(--white);
    padding: 4rem 2rem;
    text-align: center;
}

.hero-title {
    font-size: 3rem;
    margin-bottom: 1rem;
    animation: fadeInUp 0.8s ease;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    animation: fadeInUp 1s ease;
}

.hero-cta {
    display: inline-block;
    background-color: var(--secondary-color);
    color: var(--dark-color);
    padding: 1rem 2.5rem;
    border-radius: var(--border-radius);
    font-weight: 600;
    transition: var(--transition);
    animation: fadeInUp 1.2s ease;
}

.hero-cta:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-hover);
}

/* ========== SECTION STYLES ========== */
.section {
    padding: 4rem 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.section-subtitle {
    text-align: center;
    color: var(--text-color);
    margin-bottom: 3rem;
    font-style: italic;
}

/* ========== GRID LAYOUTS ========== */
.grid {
    display: grid;
    gap: 2rem;
}

.grid-2 {
    grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

/* ========== CARD STYLES ========== */
.card {
    background: var(--white);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    padding: 2rem;
    transition: var(--transition);
}

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

.card-img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: var(--border-radius);
    margin-bottom: 1rem;
}

.card-title {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.card-text {
    color: var(--text-color);
    line-height: 1.6;
}

.card-link {
    display: inline-block;
    margin-top: 1rem;
    color: var(--primary-color);
    font-weight: 600;
}

.card-link:hover {
    color: var(--secondary-color);
}

/* ========== FOOTER STYLES ========== */
.main-footer {
    background: var(--dark-color);
    color: var(--white);
    padding: 3rem 0 1rem;
    border-top: 4px solid var(--primary-color);
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-column h3 {
    color: var(--secondary-color);
    margin-bottom: 1rem;
}

.footer-column ul li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: var(--white);
    opacity: 0.8;
    transition: var(--transition);
}

.footer-column a:hover {
    opacity: 1;
    color: var(--secondary-color);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255,255,255,0.1);
    color: rgba(255,255,255,0.7);
}

/* ========== ANIMATIONS ========== */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ========== RESPONSIVE DESIGN ========== */
@media (max-width: 768px) {
    /* Header Mobile */
    .desktop-nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    /* Typography */
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.75rem;
    }

    /* Grid Mobile */
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }

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

    /* Container */
    .container {
        padding: 0 1rem;
    }

    .header-container {
        padding: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }

    .hero-subtitle {
        font-size: 1rem;
    }

    .card {
        padding: 1.5rem;
    }
}