/* ==========================================================================
   CSS VARIABLES & CORE SYSTEM (css/style.css)
   ========================================================================== */
:root {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --text-primary: #0f172a;
    --text-secondary: #475569;
    --accent-color: #1e40af; /* Biru khas Logo SMK */
    --accent-hover: #1d4ed8;
    --gold-accent: #eab308;  /* Kuning Emas khas Logo SMK */
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.05), 0 4px 6px -4px rgba(0,0,0,0.05);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.05);
    --transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
}

[data-theme="dark"] {
    --bg-primary: #090d16;
    --bg-secondary: #0f172a;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #3b82f6; /* Biru terang untuk Dark Mode agar kontras */
    --accent-hover: #60a5fa;
    --card-bg: #0f172a;
    --border-color: #1e293b;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 10px 15px -3px rgba(0,0,0,0.3);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.4);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Plus Jakarta Sans', sans-serif;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    transition: var(--transition);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ==========================================================================
   INTERACTIVE ACCORDION SLIDER COMPONENT
   ========================================================================== */
.hero-section {
    padding: 40px 0 60px 0;
}

.hero-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 40px auto;
}

.hero-header h1 {
    font-size: 2.8rem;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 15px;
}

.hero-header h1 span {
    color: var(--accent-color);
}

.hero-header p {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

.accordion-slider {
    display: flex;
    width: 100%;
    height: 520px;
    gap: 16px;
    margin-bottom: 40px;
}

.slider-panel {
    flex: 1;
    height: 100%;
    border-radius: 20px;
    overflow: hidden;
    position: relative;
    background-size: cover;
    background-position: center;
    cursor: pointer;
    transition: flex 0.7s cubic-bezier(0.25, 1, 0.3, 1), transform 0.3s;
    display: flex;
    align-items: flex-end;
    padding: 30px;
    box-shadow: var(--shadow-md);
}

.slider-panel::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to top, 
        rgba(15, 23, 42, 0.95) 0%, 
        rgba(15, 23, 42, 0.5) 50%, 
        rgba(15, 23, 42, 0.2) 100%);
    z-index: 1;
    transition: var(--transition);
}

.slider-panel.active,
.slider-panel:hover {
    flex: 2.8;
}

.slider-panel:hover {
    transform: translateY(-2px);
}

.slider-panel.active::before,
.slider-panel:hover::before {
    background: linear-gradient(to top, 
        rgba(15, 23, 42, 0.98) 0%, 
        rgba(15, 23, 42, 0.4) 60%, 
        rgba(15, 23, 42, 0) 100%);
}

.panel-content {
    position: relative;
    z-index: 2;
    color: #ffffff;
    width: 100%;
    transform: translateY(40px);
    transition: transform 0.5s cubic-bezier(0.25, 1, 0.3, 1);
}

.slider-panel.active .panel-content,
.slider-panel:hover .panel-content {
    transform: translateY(0);
}

.panel-badge {
    background-color: var(--accent-color);
    color: #ffffff;
    padding: 6px 14px;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    display: inline-block;
    margin-bottom: 12px;
}

.panel-title {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.2;
    text-shadow: 0 2px 4px rgba(0,0,0,0.2);
}

.panel-desc {
    opacity: 0;
    max-height: 0;
    overflow: hidden;
    transition: opacity 0.4s ease, max-height 0.4s ease, margin 0.4s ease;
    font-size: 0.95rem;
    color: #cbd5e1;
    margin-top: 0;
    line-height: 1.5;
}

.slider-panel.active .panel-desc,
.slider-panel:hover .panel-desc {
    opacity: 1;
    max-height: 100px;
    margin-top: 10px;
}

.panel-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    margin-top: 15px;
    opacity: 0;
    transition: var(--transition);
}

.slider-panel.active .panel-btn,
.slider-panel:hover .panel-btn {
    opacity: 1;
}

.panel-btn i {
    transition: var(--transition);
}

.panel-btn:hover i {
    transform: translateX(4px);
}

/* ==========================================================================
   STATS, GRID CARDS & RESPONSIVE
   ========================================================================== */
.stats-section {
    background-color: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 40px 0;
    box-shadow: var(--shadow-sm);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item h3 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--accent-color);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-item p {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
}

.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.2rem;
    font-weight: 800;
    margin-bottom: 10px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    max-width: 600px;
    margin: 0 auto;
}

.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 30px;
}

.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
}

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

.card-img-wrapper {
    width: 100%;
    height: 200px;
    overflow: hidden;
}

.card-img-wrapper img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.card:hover .card-img-wrapper img {
    transform: scale(1.05);
}

.card-body {
    padding: 24px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.card-desc {
    font-size: 0.95rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    flex-grow: 1;
}

.card-link {
    color: var(--accent-color);
    font-weight: 700;
    font-size: 0.9rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

@media (max-width: 1024px) {
    .hero-header h1 { font-size: 2.3rem; }
    .accordion-slider { height: 450px; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .accordion-slider { flex-direction: column; height: auto; gap: 12px; }
    .slider-panel { height: 180px; flex: none !important; border-radius: 16px; padding: 20px; }
    .panel-content { transform: translateY(0); }
    .panel-desc { display: none; }
    .panel-btn { opacity: 1; margin-top: 8px; }
    .panel-title { font-size: 1.25rem; }
}