/* ============================================================
   lms/assets/lms.css — Dugsiiye LMS Styles
   Extends the portfolio design system (same CSS variables)
   ============================================================ */

/* ── LMS Layout ─────────────────────────────────────────── */
.lms-wrapper {
    display: flex;
    min-height: 100vh;
    background: var(--bg-main);
}

/* ── Sidebar ─────────────────────────────────────────────── */
.lms-sidebar {
    position: fixed;
    top: 0; left: 0;
    width: 260px;
    height: 100vh;
    background: var(--bg-sidebar, var(--bg-card));
    border-right: 1px solid var(--border-main);
    display: flex;
    flex-direction: column;
    z-index: 50;
    transition: transform 0.3s ease;
    box-shadow: 4px 0 24px rgba(0,0,0,0.06);
    overflow-y: auto;
}
.lms-sidebar.collapsed { transform: translateX(-260px); }

.lms-sidebar-logo {
    padding: 24px 20px;
    border-bottom: 1px solid var(--border-main);
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}
.lms-sidebar-logo-icon {
    width: 42px; height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary), #a855f7);
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 1.2rem;
    box-shadow: 0 4px 12px var(--primary-glow);
    flex-shrink: 0;
}
.lms-sidebar-nav { flex: 1; padding: 16px 12px; overflow-y: auto; }
.lms-sidebar-section {
    font-size: 0.62rem; font-weight: 800;
    color: var(--text-muted); text-transform: uppercase;
    letter-spacing: 0.1em; padding: 0 8px;
    margin: 16px 0 8px;
}
.lms-nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 11px 14px; border-radius: 12px;
    font-size: 0.875rem; font-weight: 600;
    color: var(--text-muted);
    transition: all 0.2s ease;
    cursor: pointer; text-decoration: none;
    margin-bottom: 3px;
}
.lms-nav-item:hover { background: var(--primary-light); color: var(--primary); }
.lms-nav-item.active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px var(--primary-glow); }
.lms-nav-item i { width: 20px; text-align: center; font-size: 0.95rem; }
.lms-sidebar-footer {
    padding: 12px;
    border-top: 1px solid var(--border-main);
}

/* ── Main Content ────────────────────────────────────────── */
.lms-main {
    margin-left: 260px;
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin-left 0.3s ease;
}
.lms-main.expanded { margin-left: 0; }

/* ── Top Bar ─────────────────────────────────────────────── */
.lms-topbar {
    position: sticky; top: 0; z-index: 40;
    background: var(--bg-card);
    border-bottom: 1px solid var(--border-main);
    padding: 0 28px; height: 66px;
    display: flex; align-items: center; justify-content: space-between;
    backdrop-filter: blur(12px);
    box-shadow: 0 1px 12px rgba(0,0,0,0.04);
}

/* ── Page Content ────────────────────────────────────────── */
.lms-content { flex: 1; padding: 32px 28px; }

/* ── Cards ───────────────────────────────────────────────── */
.lms-card {
    background: var(--bg-card);
    border: 1px solid var(--border-main);
    border-radius: 20px;
    padding: 24px;
    transition: all 0.25s ease;
}
.lms-card:hover { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light), 0 8px 24px rgba(0,0,0,0.07); }

.lms-stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-main);
    border-radius: 20px;
    padding: 24px;
    display: flex; align-items: center; gap: 16px;
    transition: all 0.25s ease;
}
.lms-stat-card:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,0,0,0.08); }
.lms-stat-icon {
    width: 52px; height: 52px;
    border-radius: 14px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.3rem; flex-shrink: 0;
}
.lms-stat-value { font-size: 1.8rem; font-weight: 900; color: var(--text-main); line-height: 1; }
.lms-stat-label { font-size: 0.78rem; color: var(--text-muted); font-weight: 600; margin-top: 4px; }

/* ── Course Card ─────────────────────────────────────────── */
.course-card {
    background: var(--bg-card);
    border: 1px solid var(--border-main);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex; flex-direction: column;
}
.course-card:hover { transform: translateY(-4px); box-shadow: 0 16px 40px rgba(0,0,0,0.1); border-color: var(--primary); }
.course-card-thumb {
    width: 100%; height: 180px;
    object-fit: cover;
    background: linear-gradient(135deg, var(--primary-light), #a855f722);
    display: flex; align-items: center; justify-content: center;
}
.course-card-thumb-placeholder {
    height: 180px;
    background: linear-gradient(135deg, var(--primary-light), #a855f722);
    display: flex; align-items: center; justify-content: center;
    color: var(--primary); font-size: 3rem;
}
.course-card-body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.course-card-cat {
    font-size: 0.68rem; font-weight: 800; text-transform: uppercase;
    letter-spacing: 0.08em; color: var(--primary); margin-bottom: 8px;
}
.course-card-title { font-size: 1rem; font-weight: 800; margin-bottom: 8px; color: var(--text-main); line-height: 1.35; }
.course-card-meta { display: flex; flex-wrap: wrap; gap: 12px; font-size: 0.75rem; color: var(--text-muted); margin-top: auto; padding-top: 12px; border-top: 1px solid var(--border-main); }
.course-card-meta i { color: var(--primary); }

/* ── Progress Bar ────────────────────────────────────────── */
.lms-progress-bar { width: 100%; height: 8px; background: var(--border-main); border-radius: 99px; overflow: hidden; }
.lms-progress-fill { height: 100%; background: linear-gradient(90deg, var(--primary), #a855f7); border-radius: 99px; transition: width 0.6s ease; }

/* ── Lesson Player ───────────────────────────────────────── */
.lesson-layout { display: grid; grid-template-columns: 300px 1fr; gap: 0; min-height: calc(100vh - 66px); }
.lesson-sidebar { border-right: 1px solid var(--border-main); overflow-y: auto; background: var(--bg-card); }
.lesson-sidebar-header { padding: 20px; border-bottom: 1px solid var(--border-main); position: sticky; top: 0; background: var(--bg-card); z-index: 5; }
.lesson-item { padding: 12px 20px; border-bottom: 1px solid var(--border-main); cursor: pointer; transition: all 0.2s; display: flex; align-items: center; gap: 10px; text-decoration: none; }
.lesson-item:hover { background: var(--primary-light); }
.lesson-item.active { background: var(--primary-light); border-left: 3px solid var(--primary); }
.lesson-item.completed .lesson-item-icon { color: #10b981; }
.lesson-item-icon { width: 20px; text-align: center; font-size: 0.85rem; flex-shrink: 0; }
.lesson-item-text { font-size: 0.82rem; font-weight: 600; color: var(--text-main); flex: 1; line-height: 1.35; }
.lesson-content { padding: 28px; overflow-y: auto; }
.lesson-video-wrapper { position: relative; padding-bottom: 56.25%; height: 0; border-radius: 16px; overflow: hidden; background: #000; margin-bottom: 24px; }
.lesson-video-wrapper iframe { position: absolute; top: 0; left: 0; width: 100%; height: 100%; border: 0; }

/* ── OTP Input ───────────────────────────────────────────── */
.otp-input {
    width: 52px; height: 60px;
    text-align: center; font-size: 1.6rem; font-weight: 900;
    border: 2px solid var(--border-main);
    border-radius: 12px;
    background: var(--bg-main);
    color: var(--text-main);
    outline: none;
    transition: all 0.2s;
    font-family: 'Courier New', monospace;
}
.otp-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.otp-input.filled { border-color: var(--primary); background: var(--primary-light); }

/* ── Forms ───────────────────────────────────────────────── */
.lms-form-group { margin-bottom: 20px; }
.lms-label { display: block; font-size: 0.75rem; font-weight: 800; color: var(--text-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.05em; }
.lms-input {
    width: 100%; padding: 12px 16px;
    border-radius: 12px;
    background: var(--bg-main);
    border: 1.5px solid var(--border-main);
    color: var(--text-main);
    font-size: 0.9rem;
    font-family: 'Quicksand', sans-serif;
    transition: border-color 0.2s, box-shadow 0.2s;
    outline: none;
}
.lms-input:focus { border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-light); }
.lms-input.error { border-color: #ef4444; box-shadow: 0 0 0 3px rgba(239,68,68,0.15); }
.lms-input-icon-wrap { position: relative; }
.lms-input-icon-wrap .lms-input { padding-left: 42px; }
.lms-input-icon-wrap i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); }
.lms-field-error { font-size: 0.75rem; color: #ef4444; margin-top: 5px; display: block; font-weight: 700; }

/* ── Buttons ─────────────────────────────────────────────── */
.lms-btn { display: inline-flex; align-items: center; gap: 7px; padding: 11px 22px; border-radius: 12px; font-weight: 800; font-size: 0.85rem; cursor: pointer; transition: all 0.2s; border: none; font-family: 'Quicksand', sans-serif; text-decoration: none; }
.lms-btn-primary { background: var(--primary); color: #fff; }
.lms-btn-primary:hover { background: var(--primary-hover); transform: translateY(-1px); box-shadow: 0 4px 12px var(--primary-glow); }
.lms-btn-ghost { background: var(--bg-main); color: var(--text-muted); border: 1.5px solid var(--border-main); }
.lms-btn-ghost:hover { color: var(--primary); border-color: var(--primary); background: var(--primary-light); }
.lms-btn-success { background: rgba(16,185,129,0.1); color: #10b981; border: 1.5px solid rgba(16,185,129,0.3); }
.lms-btn-success:hover { background: rgba(16,185,129,0.2); }
.lms-btn-danger { background: rgba(244,63,94,0.1); color: #f43f5e; border: 1.5px solid rgba(244,63,94,0.2); }
.lms-btn-danger:hover { background: rgba(244,63,94,0.2); }
.lms-btn-full { width: 100%; justify-content: center; padding: 14px; }
.lms-btn-sm { padding: 7px 14px; font-size: 0.78rem; }

/* ── Alerts / Badges ─────────────────────────────────────── */
.alert { padding: 14px 18px; border-radius: 12px; font-size: 0.875rem; font-weight: 600; display: flex; align-items: center; gap: 10px; margin-bottom: 16px; }
.alert-success { background: rgba(16,185,129,0.1); border: 1px solid rgba(16,185,129,0.3); color: #10b981; }
.alert-error   { background: rgba(244,63,94,0.1);  border: 1px solid rgba(244,63,94,0.3);  color: #f43f5e; }
.alert-info    { background: var(--primary-light);  border: 1px solid rgba(244,63,94,0.2); color: var(--primary); }
.alert-warning { background: rgba(245,158,11,0.1); border: 1px solid rgba(245,158,11,0.3); color: #f59e0b; }

/* ── Table ───────────────────────────────────────────────── */
.lms-table { width: 100%; border-collapse: collapse; }
.lms-table thead th { padding: 12px 16px; background: var(--bg-main); color: var(--text-muted); font-size: 0.7rem; font-weight: 800; text-transform: uppercase; letter-spacing: 0.08em; border-bottom: 1px solid var(--border-main); text-align: left; }
.lms-table tbody tr { border-bottom: 1px solid var(--border-main); transition: background 0.15s; }
.lms-table tbody tr:hover { background: var(--primary-light); }
.lms-table tbody td { padding: 14px 16px; font-size: 0.875rem; }

/* ── Modal ───────────────────────────────────────────────── */
.lms-modal { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); backdrop-filter: blur(4px); z-index: 100; align-items: center; justify-content: center; }
.lms-modal.open { display: flex; }
.lms-modal-box { background: var(--bg-card); border: 1px solid var(--border-main); border-radius: 24px; padding: 32px; width: 90%; max-width: 560px; max-height: 90vh; overflow-y: auto; box-shadow: 0 24px 64px rgba(0,0,0,0.2); animation: modalIn 0.25s ease; }
@keyframes modalIn { from { opacity: 0; transform: scale(0.95) translateY(10px); } to { opacity: 1; transform: scale(1) translateY(0); } }

/* ── Toast ───────────────────────────────────────────────── */
#lms-toast-container { position: fixed; bottom: 24px; right: 24px; z-index: 9999; display: flex; flex-direction: column; gap: 10px; }
.lms-toast { background: var(--bg-card); border: 1px solid var(--border-main); border-radius: 14px; padding: 14px 18px; font-size: 0.85rem; font-weight: 700; display: flex; align-items: center; gap: 10px; box-shadow: 0 8px 24px rgba(0,0,0,0.15); min-width: 280px; animation: toastIn 0.3s ease; }
@keyframes toastIn { from { opacity: 0; transform: translateX(50px); } to { opacity: 1; transform: translateX(0); } }
.lms-toast.success { border-left: 4px solid #10b981; color: #10b981; }
.lms-toast.error   { border-left: 4px solid #f43f5e; color: #f43f5e; }
.lms-toast.info    { border-left: 4px solid var(--primary); color: var(--primary); }

/* ── Empty State ─────────────────────────────────────────── */
.lms-empty { text-align: center; padding: 64px 24px; }
.lms-empty i { font-size: 3.5rem; color: var(--border-main); display: block; margin-bottom: 16px; }
.lms-empty p { color: var(--text-muted); font-size: 0.9rem; }

/* ── Auth Pages ──────────────────────────────────────────── */
.auth-page { min-height: 100vh; display: flex; align-items: center; justify-content: center; background: var(--bg-main); padding: 20px; position: relative; overflow: hidden; }
.auth-card { background: var(--bg-card); border: 1px solid var(--border-main); border-radius: 28px; padding: 40px; width: 100%; max-width: 460px; position: relative; z-index: 10; box-shadow: 0 32px 64px rgba(0,0,0,0.12); }

/* ── Scrollbar ───────────────────────────────────────────── */
.lms-sidebar::-webkit-scrollbar { width: 4px; }
.lms-sidebar::-webkit-scrollbar-track { background: transparent; }
.lms-sidebar::-webkit-scrollbar-thumb { background: var(--border-main); border-radius: 2px; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
    .lms-sidebar { transform: translateX(-260px); }
    .lms-sidebar.mobile-open { transform: translateX(0); }
    .lms-main { margin-left: 0 !important; }
    .lms-content { padding: 20px 16px; }
    .lesson-layout { grid-template-columns: 1fr; }
    .lesson-sidebar { position: fixed; top: 66px; left: 0; width: 100%; height: calc(100vh - 66px); transform: translateX(-100%); transition: transform 0.3s; z-index: 30; }
    .lesson-sidebar.open { transform: translateX(0); }
    .lms-topbar { padding: 0 16px; }
}

/* ── Courses Grid ────────────────────────────────────────── */
.courses-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 24px; }
@media (max-width: 640px) { .courses-grid { grid-template-columns: 1fr; } }