/* ===== CG|Holdings LMS theme ===== */

:root {
    --cg-primary: #4f46e5;
    --cg-primary-dark: #3730a3;
    --cg-accent: #f59e0b;
    --cg-navbar-from: #1e1b4b;
    --cg-navbar-to: #4338ca;
    --bs-primary: var(--cg-primary);
}

body {
    font-family: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    background-color: #f4f5fb;
}

/* Wider content area than Bootstrap's default .container, centered on
   very large screens so it never stretches edge-to-edge. */
.app-main {
    width: 100%;
    max-width: 1600px;
    margin: 0 auto;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
}
@media (max-width: 576px) {
    .app-main { padding-left: 1rem; padding-right: 1rem; }
}
/* Restore the flex layout Bootstrap gives .navbar > .container-fluid */
.navbar > .app-main {
    display: flex;
    flex-wrap: inherit;
    align-items: center;
    justify-content: space-between;
}

h1, h2, h3, h4, h5, .navbar-brand {
    letter-spacing: -0.015em;
}

/* --- Bootstrap primary remap --- */
.btn-primary {
    --bs-btn-bg: var(--cg-primary);
    --bs-btn-border-color: var(--cg-primary);
    --bs-btn-hover-bg: var(--cg-primary-dark);
    --bs-btn-hover-border-color: var(--cg-primary-dark);
    --bs-btn-active-bg: var(--cg-primary-dark);
    --bs-btn-active-border-color: var(--cg-primary-dark);
}
.btn-outline-primary {
    --bs-btn-color: var(--cg-primary);
    --bs-btn-border-color: var(--cg-primary);
    --bs-btn-hover-bg: var(--cg-primary);
    --bs-btn-hover-border-color: var(--cg-primary);
    --bs-btn-active-bg: var(--cg-primary);
    --bs-btn-active-border-color: var(--cg-primary);
}
.text-bg-primary { background-color: var(--cg-primary) !important; }
.text-primary { color: var(--cg-primary) !important; }
.progress-bar { background-color: var(--cg-primary); }
a { color: var(--cg-primary); }
a:hover { color: var(--cg-primary-dark); }
.nav-pills .nav-link.active { background-color: var(--cg-primary); }

/* --- Navbar --- */
.navbar.cg-navbar {
    background: linear-gradient(90deg, var(--cg-navbar-from), var(--cg-navbar-to));
    box-shadow: 0 2px 12px rgba(30, 27, 75, 0.25);
}
.cg-navbar .navbar-brand .brand-pipe { color: var(--cg-accent); font-weight: 800; }
.cg-navbar .nav-link {
    border-radius: 0.5rem;
    padding: 0.4rem 0.85rem;
    margin: 0 0.1rem;
    transition: background-color 0.15s ease;
}
.cg-navbar .nav-link:hover { background-color: rgba(255, 255, 255, 0.12); }
.cg-navbar .nav-link.active {
    background-color: rgba(255, 255, 255, 0.18);
    color: #fff;
    font-weight: 600;
    box-shadow: inset 0 -2px 0 var(--cg-accent);
}

/* --- Cards --- */
.card {
    border: 0;
    border-radius: 0.9rem;
    box-shadow: 0 1px 3px rgba(30, 27, 75, 0.08), 0 4px 16px rgba(30, 27, 75, 0.05);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}
a .card:hover, .card.card-hover:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(30, 27, 75, 0.10), 0 12px 28px rgba(30, 27, 75, 0.10);
}
.card-header { border-bottom: 1px solid rgba(30, 27, 75, 0.06); }

/* --- Avatars --- */
.avatar {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    object-fit: cover;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--cg-primary), var(--cg-navbar-to));
    color: #fff;
    font-weight: 600;
}
.avatar-sm { width: 30px; height: 30px; font-size: 0.7rem; }
.avatar-md { width: 44px; height: 44px; font-size: 1rem; }
.avatar-lg { width: 72px; height: 72px; font-size: 1.6rem; }
.avatar-xl { width: 110px; height: 110px; font-size: 2.4rem; }

/* --- Profile page --- */
.profile-card { overflow: hidden; }
.profile-cover {
    height: 90px;
    background: linear-gradient(120deg, var(--cg-navbar-from), var(--cg-navbar-to) 60%, var(--cg-accent) 130%);
}
.profile-avatar-wrap { margin-top: -55px; }
.profile-avatar-wrap .avatar { border: 4px solid #fff; box-shadow: 0 2px 8px rgba(0,0,0,0.15); }

.stat-card .stat-icon { font-size: 1.5rem; line-height: 1; margin-bottom: 0.35rem; }

.badge-tile {
    width: 110px;
    padding: 0.75rem 0.5rem;
    border-radius: 0.75rem;
    background: linear-gradient(180deg, #fffbeb, #fff);
    border: 1px solid #fde68a;
}
.badge-tile-icon { font-size: 1.6rem; color: var(--cg-accent); }

/* --- Login page --- */
body.login-page {
    background: linear-gradient(135deg, var(--cg-navbar-from) 0%, var(--cg-navbar-to) 55%, #6d28d9 100%);
}
body.login-page .card { border-radius: 1.1rem; }
.login-logo {
    width: 64px;
    height: 64px;
    border-radius: 1rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: #fff;
    background: linear-gradient(135deg, var(--cg-primary), #6d28d9);
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.4);
}

/* --- Notification bell --- */
.notification-menu {
    width: 330px;
    max-height: 420px;
    overflow-y: auto;
}
.notification-menu .dropdown-item.unread {
    background-color: #eef2ff;
}
.notification-menu .dropdown-item { white-space: normal; }

/* --- Course thumbnail fallback --- */
.course-thumb-fallback {
    height: 140px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.4rem;
    color: rgba(255, 255, 255, 0.85);
    background: linear-gradient(135deg, var(--cg-primary), var(--cg-navbar-to));
    border-top-left-radius: 0.9rem;
    border-top-right-radius: 0.9rem;
}

/* --- Netflix-style course rails --- */
.rail-scroll {
    overflow-x: auto;
    overflow-y: hidden;
    padding: 10px 4px 22px;   /* room for the hover scale */
    scroll-snap-type: x proximity;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}
.rail-scroll::-webkit-scrollbar { height: 8px; }
.rail-scroll::-webkit-scrollbar-thumb {
    background: rgba(30, 27, 75, 0.2);
    border-radius: 4px;
}
.rail-card {
    flex: 0 0 240px;
    width: 240px;
    scroll-snap-align: start;
    border: 0;
    border-radius: 0.8rem;
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(30, 27, 75, 0.08);
    transition: transform 0.22s ease, box-shadow 0.22s ease;
}
.rail-card:hover {
    transform: scale(1.07);
    z-index: 6;
    box-shadow: 0 14px 34px rgba(30, 27, 75, 0.28);
}
.rail-thumb { position: relative; overflow: hidden; }
.rail-thumb-img { width: 100%; height: 140px; object-fit: cover; display: block; }
/* Netflix-style info reveal on hover */
.rail-overlay {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 10px;
    color: #fff;
    font-size: 0.78rem;
    background: linear-gradient(to top, rgba(30, 27, 75, 0.94), rgba(30, 27, 75, 0.55) 55%, transparent);
    opacity: 0;
    transition: opacity 0.22s ease;
}
.rail-card:hover .rail-overlay { opacity: 1; }
.rail-overlay-desc {
    margin: 0 0 6px;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.rail-overlay-author { font-weight: 600; opacity: 0.95; }
.text-truncate-2 {
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* --- Content protection: tiled watermark overlay --- */
.content-protect { position: relative; }
/* Tiled repeating SVG (set in JS) fills the frame at ANY size, including
   fullscreen, so coverage never has gaps. */
.watermark {
    position: absolute;
    inset: 0;
    z-index: 2;
    pointer-events: none;   /* never blocks player controls / scrolling */
    overflow: hidden;
    background-repeat: repeat;
    user-select: none;
}
.no-select {
    user-select: none;
    -webkit-user-select: none;
}

/* --- PDF.js document viewer --- */
.pdf-page {
    width: min(900px, 100%);
    height: auto;
    display: block;
    margin: 0 auto 12px;
    background: #fff;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.3);
}
#doc-frame:fullscreen { background: #525659; }
#doc-frame:fullscreen #pdf-doc,
#doc-frame:fullscreen #doc-body {
    max-height: 100vh;
    height: 100vh;
}
/* Fill the screen in fullscreen — fit each page to the screen height so the
   full length is used; cap the width so landscape PDFs don't overflow. */
#doc-frame:fullscreen .pdf-page {
    height: 94vh;
    width: auto;
    max-width: 96vw;
}
#doc-frame:fullscreen #doc-body { padding: 2rem clamp(1rem, 8vw, 10rem); }

/* --- Video pop-quiz checkpoint overlay --- */
.checkpoint-overlay {
    position: absolute !important;
    inset: 0;
    z-index: 100;                   /* above the watermark AND the player controls */
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(8, 7, 20, 0.94);   /* near-solid backdrop */
    backdrop-filter: blur(3px);
    pointer-events: auto;
}
.checkpoint-overlay.d-none { display: none !important; }
.checkpoint-card {
    background: var(--bs-body-bg);
    color: var(--bs-body-color);
    border: 1px solid var(--bs-border-color);
    border-radius: 1rem;
    padding: 1.75rem;
    width: min(560px, 92%);
    max-height: 88%;
    overflow-y: auto;
    box-shadow: 0 24px 70px rgba(0, 0, 0, 0.6);
    font-size: 1rem;
}
.checkpoint-card #cp-question {
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.4;
}
.cp-choice {
    display: flex;
    align-items: center;
    padding: 0.7rem 0.9rem;
    border: 1px solid var(--bs-border-color);
    border-radius: 0.6rem;
    cursor: pointer;
    margin: 0;
    font-size: 1rem;
}
.cp-choice:hover { border-color: var(--cg-primary); background: rgba(79, 70, 229, 0.10); }
.cp-choice:has(input:checked) {
    border-color: var(--cg-primary);
    background: rgba(79, 70, 229, 0.16);
}
#cp-submit { padding: 0.55rem 1rem; font-size: 1rem; }

/* --- Rewards --- */
.reward-icon {
    width: 52px;
    height: 52px;
    flex-shrink: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #fff;
    border-radius: 0.8rem;
    background: linear-gradient(135deg, var(--cg-accent), #d97706);
}

/* --- Misc polish --- */
.table > :not(caption) > * > * { padding: 0.65rem 0.75rem; }
.list-group-item { border-color: rgba(30, 27, 75, 0.06); }
.alert { border: 0; border-radius: 0.75rem; }
footer.cg-footer { color: #8b8da3; }

/* --- Dark theme adjustments (Bootstrap 5.3 data-bs-theme) --- */
[data-bs-theme="dark"] body { background-color: #14121f; }
[data-bs-theme="dark"] a { color: #a5b4fc; }
[data-bs-theme="dark"] a:hover { color: #c7d2fe; }
[data-bs-theme="dark"] .text-primary { color: #a5b4fc !important; }
/* Theme-aware backgrounds for our hardcoded light surfaces */
[data-bs-theme="dark"] .bg-light { background-color: var(--bs-tertiary-bg) !important; }
[data-bs-theme="dark"] .text-bg-light {
    background-color: var(--bs-secondary-bg) !important;
    color: var(--bs-body-color) !important;
}
[data-bs-theme="dark"] .card-header { border-bottom-color: var(--bs-border-color); }
[data-bs-theme="dark"] .list-group-item { border-color: var(--bs-border-color); }
[data-bs-theme="dark"] .badge-tile {
    background: linear-gradient(180deg, rgba(245, 158, 11, 0.12), rgba(245, 158, 11, 0.02));
    border-color: rgba(245, 158, 11, 0.35);
}
[data-bs-theme="dark"] .toast,
[data-bs-theme="dark"] .stat-card { color: var(--bs-body-color); }
[data-bs-theme="dark"] .notification-menu .dropdown-item.unread {
    background-color: rgba(165, 180, 252, 0.15);
}
#theme-toggle { color: rgba(255, 255, 255, 0.85); }
#theme-toggle:hover { color: #fff; }