/* MP AKADEMİ - Modern Karanlık Tema */
:root {
    --bg-dark: #0a0a0a;
    --sidebar-bg: #111111;
    --card-bg: #181818;
    --neon-green: #39FF14;
    --btn-blue: #3b82f6;
    --text-gray: #b3b3b3;
    --border-color: #252525;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: white;
    overflow-x: hidden;
}

.wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Tasarımı */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding: 20px;
    position: fixed;
    height: 100vh;
    z-index: 1000;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 40px;
    padding: 10px;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
}

.menu-label {
    color: #555;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    margin-bottom: 15px;
    display: block;
}

.menu-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    color: var(--text-gray);
    text-decoration: none;
    border-radius: 12px;
    margin-bottom: 8px;
    transition: all 0.3s ease;
}

.menu-item i {
    margin-right: 15px;
    width: 20px;
    text-align: center;
    font-size: 1.1rem;
}

.menu-item:hover, .menu-item.active {
    background: rgba(57, 255, 20, 0.1);
    color: white;
    border-left: 3px solid var(--neon-green);
}

/* Ana İçerik ve Üst Bar */
.main-content {
    margin-left: 260px;
    flex: 1;
}

.top-bar {
    height: 70px;
    background: rgba(10, 10, 10, 0.95);
    display: flex;
    align-items: center;
    padding: 0 40px;
    gap: 30px;
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 900;
    backdrop-filter: blur(10px);
}

.top-nav-item {
    color: white;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: 0.3s;
}

.top-nav-item i {
    color: var(--neon-green);
    font-size: 1rem;
}

.top-nav-item:hover {
    color: var(--neon-green);
    transform: translateY(-2px);
}

/* Yan Yana 3 Kart Düzeni */
.card-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    padding: 40px;
}

.course-card {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 20px;
    border: 1px solid var(--border-color);
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
}

.course-card:hover {
    transform: translateY(-10px);
    border-color: var(--neon-green);
    box-shadow: 0 10px 30px rgba(57, 255, 20, 0.1);
}

.video-preview {
    width: 100%;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: 15px;
    margin-bottom: 20px;
    overflow: hidden;
    position: relative;
}

.video-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.course-card h3 {
    font-size: 1.2rem;
    margin-bottom: 10px;
    color: white;
}

.course-card p {
    color: var(--text-gray);
    font-size: 0.9rem;
    margin-bottom: 20px;
    line-height: 1.4;
}

/* Başla Butonu */
.btn-blue {
    background: var(--btn-blue);
    color: white;
    padding: 12px 25px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: bold;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: 0.3s;
}

.btn-blue:hover {
    filter: brightness(1.2);
    box-shadow: 0 5px 15px rgba(59, 130, 246, 0.4);
}

/* Responsive Ayarlar */
@media (max-width: 1200px) {
    .card-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .sidebar { width: 80px; padding: 10px; }
    .logo-container span, .menu-label, .menu-item span { display: none; }
    .main-content { margin-left: 80px; }
    .card-grid { grid-template-columns: 1fr; }
    .top-bar { overflow-x: auto; gap: 15px; }
}