/* ============================================
   ONE STOP CENTRE - MAIN STYLESHEET
   Jabatan Pendidikan Negeri Pahang
============================================ */

/* === ROOT VARIABLES === */
:root {
    /* Colors */
    --primary-color: #2563eb;        /* Biru lembut */
    --primary-hover: #1e40af;        /* Biru gelap sikit */
    --primary-light: #eff6ff;        /* Biru sangat cair */
    --secondary-color: #64748b;      /* Kelabu lembut */
    --accent-color: #f59e0b;         /* Oren lembut */
    
    /* Background */
    --sidebar-bg: #f8f9fa;
    --content-bg: #ffffff;
    --body-bg: #e9ecef;
    --overlay-bg: rgba(0, 0, 0, 0.5);
    
    /* Text */
    --text-color: #333333;
    --text-light: #6c757d;
    --text-white: #ffffff;
    
    /* Borders & Shadows */
    --border-color: #dee2e6;
    --border-radius: 12px;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.15);
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    
    /* Sidebar */
    --sidebar-width: 280px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background-color: var(--body-bg);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
}

/* === CONTAINER === */
.container {
    display: flex;
    min-height: 100vh;
}

/* ============================================
   SIDEBAR
============================================ */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
    transition: transform var(--transition-normal);
}

/* Sidebar Header */
.sidebar-header {
    text-align: center;
    padding: 0;
    border: none;
    background: transparent;
}

.sidebar-logo {
    width: 100%;
    height: auto;
    display: block;
    padding: 0;
    margin: 0;
    object-fit: contain;
}

.sidebar-logo:hover {
    transform: scale(1.02);
}
.sidebar-header h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 5px;
    font-family: 'Poppins', sans-serif;
}

.sidebar-header h2 {
    font-size: 0.9rem;
    font-weight: 400;
    color: var(--text-light);
}

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 20px 15px;
}

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

.sidebar-nav li {
    margin-bottom: 8px;
}

.tab-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 18px;
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    border-radius: var(--border-radius);
    transition: all var(--transition-normal);
    position: relative;
}

.tab-link i {
    font-size: 1.2rem;
    width: 24px;
    text-align: center;
}

.tab-link:hover {
    background-color: var(--primary-light);
    color: var(--primary-color);
    transform: translateX(5px);
}

.tab-link.active {
    background-color: var(--primary-color);
    color: var(--text-white);
    box-shadow: var(--shadow-md);
}

.tab-link.active i {
    animation: bounce 0.6s ease;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--border-color);
    background-color: rgba(0, 86, 179, 0.03);
}

.sidebar-footer p {
    font-size: 0.75rem;
    color: var(--text-light);
    text-align: center;
    line-height: 1.5;
}

/* Sidebar Close Button (Mobile) */
.sidebar-close-btn {
    display: none;
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-light);
    cursor: pointer;
    transition: color var(--transition-fast);
    z-index: 10;
}

.sidebar-close-btn:hover {
    color: var(--primary-color);
}

/* ============================================
   MAIN CONTENT
============================================ */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 40px;
    background-color: var(--content-bg);
    min-height: 100vh;
}

/* Menu Toggle Button (Mobile) */
.menu-toggle-btn {
    display: none;
    position: fixed;
    top: 20px;
    left: 20px;
    z-index: 999;
    background-color: var(--primary-color);
    color: var(--text-white);
    border: none;
    padding: 12px 16px;
    border-radius: var(--border-radius);
    font-size: 1.3rem;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    transition: all var(--transition-normal);
}

.menu-toggle-btn:hover {
    background-color: var(--primary-hover);
    transform: scale(1.05);
}

/* Content Header */
.content-header {
    margin-bottom: 30px;
    animation: fadeInDown 0.6s ease;
}

.content-header h2 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 8px;
    font-family: 'Poppins', sans-serif;
    position: relative;
    display: inline-block;
}

.content-header h2::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.subtitle {
    font-size: 1.05rem;
    color: var(--text-light);
    margin-top: 10px;
}

/* ============================================
   TAB CONTENT
============================================ */
.tab-content {
    display: none;
    animation: fadeIn 0.5s ease;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from { 
        opacity: 0; 
        transform: translateY(20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

@keyframes fadeInDown {
    from { 
        opacity: 0; 
        transform: translateY(-20px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

/* ============================================
   HERO IMAGE
============================================ */
.hero-image {
    width: 100%;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-top: 25px;
    animation: fadeIn 0.8s ease;
}

.hero-image img {
    width: 100%;
    height: auto;
    display: block;
    transition: transform var(--transition-slow);
}

.hero-image:hover img {
    transform: scale(1.02);
}

/* ============================================
   HEADER IMAGES (Tab 2)
============================================ */
.tab-header-images {
    display: flex;
    gap: 20px;
    margin: 25px 0;
}

.tab-header-images img {
    width: 100%;
    height: auto;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal);
}

.tab-header-images img:hover {
    transform: translateY(-5px);
}

/* ============================================
   BUTTON GRID
============================================ */
.button-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
    margin-top: 30px;
}

/* Button Card */
.button-card {
    background-color: var(--content-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

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

.button-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-color);
}

.button-card:hover::before {
    transform: scaleX(1);
}
.button-card:hover {
    border-color: var(--primary-light);
}

.button-card:hover .card-icon {
    transform: scale(1.1);
    box-shadow: 0 8px 16px rgba(37, 99, 235, 0.3);
}

/* Card Icon */
.card-icon {
    width: 60px;
    height: 60px;
    background: linear-gradient(135deg, #3b82f6, #60a5fa);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    box-shadow: var(--shadow-sm);
}

.card-icon i {
    font-size: 1.8rem;
    color: var(--text-white);
}

.button-card h3 {
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--text-color);
    margin-bottom: 12px;
    font-family: 'Poppins', sans-serif;
}

.button-card p {
    font-size: 0.95rem;
    color: var(--text-light);
    margin-bottom: 20px;
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-family: 'Roboto', sans-serif;
}

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

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateX(5px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background-color: #5a6268;
}

.btn-disabled {
    background-color: #e9ecef;
    color: var(--text-light);
    cursor: not-allowed;
}

/* Special Card States */
.button-card.coming-soon {
    opacity: 0.7;
}

.button-card.secured .card-icon {
    background: linear-gradient(135deg, #dc3545, #c82333);
}

/* ============================================
   MODAL
============================================ */
#menu-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--overlay-bg);
    z-index: 999;
    opacity: 0;
    transition: opacity var(--transition-normal);
}

#menu-overlay.active {
    display: block;
    opacity: 1;
}

.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--overlay-bg);
    justify-content: center;
    align-items: center;
    z-index: 2000;
    animation: fadeIn var(--transition-normal);
}

.modal-overlay.active {
    display: flex;
}

.modal-content {
    background: var(--content-bg);
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
    max-width: 450px;
    width: 90%;
    position: relative;
    animation: slideUp 0.4s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-light);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close:hover {
    color: var(--primary-color);
}

.modal-content h3 {
    font-size: 1.5rem;
    color: var(--primary-color);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-content p {
    color: var(--text-light);
    margin-bottom: 20px;
}

.input-group {
    position: relative;
    margin-bottom: 20px;
}

.input-group i {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-light);
}

.input-group input {
    width: 100%;
    padding: 14px 15px 14px 45px;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color var(--transition-fast);
}

.input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.modal-content button[type="submit"] {
    width: 100%;
    padding: 14px;
    background-color: var(--primary-color);
    color: var(--text-white);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: background-color var(--transition-normal);
}

.modal-content button[type="submit"]:hover {
    background-color: var(--primary-hover);
}

.error-msg {
    color: #dc3545;
    font-size: 0.9rem;
    margin-top: 15px;
    display: none;
    text-align: center;
}

.error-msg.show {
    display: block;
}