/* ==========================================
   Frappe LMS – Complete Theme (Mobile Ready)
   Color: Frappe Green (#24963f)
   ========================================== */

/* ---------- CSS VARIABLES ---------- */
:root {
    --frappe-primary: #24963f;
    --frappe-primary-hover: #1c7a32;
    --frappe-primary-light: rgba(36, 150, 63, 0.1);
    --frappe-bg: #f5f7fa;
    --frappe-sidebar-bg: #ffffff;
    --frappe-card-bg: #ffffff;
    --frappe-text: #1e2a3e;
    --frappe-text-muted: #5b6e8c;
    --frappe-border: #e9edf2;
    --frappe-shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.04);
    --frappe-shadow-md: 0 8px 20px rgba(0, 0, 0, 0.06);
    --frappe-radius: 16px;
    --frappe-radius-sm: 12px;
}

/* ---------- GLOBAL RESET ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--frappe-bg);
    color: var(--frappe-text);
    line-height: 1.5;
    overflow-x: hidden;
}

/* ---------- LAYOUT (SIDEBAR + MAIN) ---------- */
.app-wrapper {
    display: flex;
    min-height: 100vh;
}

/* Sidebar (fixed) */
.app-sidebar {
    width: 280px;
    background: var(--frappe-sidebar-bg);
    border-right: 1px solid var(--frappe-border);
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 1000;
    transition: transform 0.3s ease;
}

/* Main content area */
.app-main {
    flex: 1;
    margin-left: 280px;
    min-height: 100vh;
    width: calc(100% - 280px);
}

.main-content {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* ---------- MOBILE MENU BUTTON ---------- */
.mobile-menu-btn {
    display: none;
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 1100;
    background: var(--frappe-primary);
    border: none;
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    font-size: 1.4rem;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: all 0.2s;
}
.mobile-menu-btn:hover {
    background: var(--frappe-primary-hover);
    transform: scale(1.05);
}

/* ---------- SIDEBAR COMPONENTS ---------- */
.sidebar-header {
    padding: 1.8rem 1.5rem;
    border-bottom: 1px solid var(--frappe-border);
}

.sidebar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    letter-spacing: -0.3px;
    color: var(--frappe-text);
}

.text-green {
    color: var(--frappe-primary);
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 1.5rem;
    border-bottom: 1px solid var(--frappe-border);
}

.avatar-sm {
    width: 44px;
    height: 44px;
    background: #eef2ff;
    border-radius: var(--frappe-radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 1.2rem;
    color: var(--frappe-primary);
}

.user-info {
    flex: 1;
}

.user-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--frappe-text);
}

.user-role {
    font-size: 0.75rem;
    color: var(--frappe-text-muted);
    text-transform: capitalize;
}

/* Sidebar navigation */
.sidebar-nav {
    padding: 1.5rem 1rem;
}

.sidebar-nav .nav-link {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 0.75rem 1rem;
    border-radius: var(--frappe-radius-sm);
    color: var(--frappe-text);
    font-weight: 500;
    transition: all 0.2s;
    margin-bottom: 6px;
    text-decoration: none;
}

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

.sidebar-nav .nav-link:hover {
    background: #f1f5f9;
    color: var(--frappe-primary);
}

.sidebar-nav .nav-link.active {
    background: var(--frappe-primary-light);
    color: var(--frappe-primary);
}

.sidebar-nav .nav-link.text-danger:hover {
    background: #fee2e2;
    color: #dc2626;
}

/* ---------- CARDS & CONTAINERS ---------- */
.card {
    border: none;
    background: var(--frappe-card-bg);
    border-radius: var(--frappe-radius);
    box-shadow: var(--frappe-shadow-sm);
    transition: all 0.2s ease;
    margin-bottom: 1.5rem;
}

.card:hover {
    box-shadow: var(--frappe-shadow-md);
    transform: translateY(-2px);
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--frappe-border);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
    font-size: 1.1rem;
}

.card-body {
    padding: 1.5rem;
}

/* ---------- BUTTONS ---------- */
.btn {
    border-radius: 10px;
    padding: 0.5rem 1.2rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--frappe-primary);
    border: none;
    color: white;
}

.btn-primary:hover {
    background: var(--frappe-primary-hover);
    transform: translateY(-1px);
}

.btn-outline-primary {
    border: 1px solid var(--frappe-primary);
    color: var(--frappe-primary);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--frappe-primary);
    border-color: var(--frappe-primary);
    color: white;
}

.btn-sm {
    padding: 0.35rem 1rem;
    font-size: 0.8rem;
}

/* ---------- PROGRESS BARS ---------- */
.progress {
    height: 8px;
    border-radius: 12px;
    background-color: #e9ecef;
}

.progress-bar {
    background-color: var(--frappe-primary);
    border-radius: 12px;
}

/* ---------- COURSE GRID & CARDS ---------- */
.course-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.course-card {
    overflow: hidden;
    border-radius: var(--frappe-radius);
    height: 100%;
}

.course-card .card-img-top {
    height: 160px;
    object-fit: cover;
    background: #eef2ff;
    display: flex;
    align-items: center;
    justify-content: center;
}

.course-badge {
    background: var(--frappe-primary-light);
    color: var(--frappe-primary);
    padding: 0.25rem 0.75rem;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 500;
}

/* ---------- STATS CARDS (DASHBOARD) ---------- */
.stat-card {
    background: var(--frappe-card-bg);
    padding: 1.5rem;
    border-radius: 20px;
    border: 1px solid var(--frappe-border);
    transition: all 0.2s;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--frappe-shadow-md);
}

.stat-card i {
    font-size: 2rem;
    margin-bottom: 0.75rem;
}

.stat-card h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

/* ---------- ALERTS ---------- */
.alert-success {
    background: #e6f7ec;
    border: none;
    color: #1e7b34;
    border-radius: 12px;
    padding: 1rem 1.25rem;
}
.alert-danger {
    background: #fee2e2;
    border: none;
    color: #dc2626;
    border-radius: 12px;
}
.alert-info {
    background: #e7f5ff;
    border: none;
    color: #0c5d8b;
    border-radius: 12px;
}

/* ---------- FORMS ---------- */
.form-control, .form-select {
    border-radius: 10px;
    border: 1px solid var(--frappe-border);
    padding: 0.6rem 1rem;
    transition: 0.2s;
}
.form-control:focus, .form-select:focus {
    border-color: var(--frappe-primary);
    box-shadow: 0 0 0 3px var(--frappe-primary-light);
}
label {
    font-weight: 500;
    margin-bottom: 0.5rem;
}

/* ---------- QUIZ STYLES ---------- */
.quiz-option {
    background: #f8fafc;
    border: 1px solid var(--frappe-border);
    border-radius: 12px;
    padding: 0.75rem 1rem;
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: all 0.15s;
}
.quiz-option:hover {
    background: white;
    border-color: var(--frappe-primary);
}
input[type="radio"]:checked + .quiz-option {
    background: var(--frappe-primary-light);
    border-color: var(--frappe-primary);
}

/* ---------- CERTIFICATE PAGE ---------- */
.certificate-card {
    background: #fffaf0;
    border: 2px solid #e2e8f0;
    border-radius: 24px;
    padding: 3rem 2rem;
    text-align: center;
}
.certificate-card i {
    font-size: 4rem;
    color: #f5b042;
}

/* ---------- LESSON PAGE ---------- */
.lesson-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--frappe-border);
}
.lesson-item:hover {
    background: #f8fafc;
}

/* ---------- RESPONSIVE (MOBILE) ---------- */
@media (max-width: 992px) {
    .course-grid {
        grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }
    .app-sidebar {
        transform: translateX(-100%);
        width: 260px;
        box-shadow: none;
    }
    .app-sidebar.open {
        transform: translateX(0);
        box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
    }
    .app-main {
        margin-left: 0;
        width: 100%;
    }
    .main-content {
        padding: 1rem;
    }
}

/* ---------- UTILITIES ---------- */
.text-muted {
    color: var(--frappe-text-muted) !important;
}
.bg-white {
    background: white;
}
.shadow-sm {
    box-shadow: var(--frappe-shadow-sm);
}
.cursor-pointer {
    cursor: pointer;
}
.rounded-xl {
    border-radius: var(--frappe-radius);
}