/* ====================================================
   HackathonAfrica LMS — AfricaPlan Foundation Theme
   Brand: Dark Navy + Gold/Amber from africaplanfoundation.org
   ==================================================== */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@400;500;600;700;800;900&family=IBM+Plex+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
    /* AfricaPlan Foundation Brand Colors */
    --bg:            #0D1117;
    --surface:       #151B23;
    --surface-hover: #1C2333;
    --border:        #2A3040;
    --primary:       #F8B526;
    --primary-dark:  #D49A10;
    --primary-glow:  rgba(248, 181, 38, 0.12);
    --secondary:     #FFC03D;
    --success:       #2EA043;
    --warning:       #FFC03D;
    --danger:        #FF4444;
    --text-primary:  #FFFFFF;
    --text-secondary:#A0AEC0;
    --text-muted:    #6B7A90;
    --text-on-primary: #0D1117;
    
    /* Typography */
    --font-heading:  'Outfit', system-ui, sans-serif;
    --font-body:     'IBM Plex Sans', system-ui, sans-serif;
    --font-mono:     'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing & Radius */
    --radius:        6px;
    --radius-sm:     4px;
    --card-shadow:   0 1px 3px rgba(0, 0, 0, 0.4);
}

/* ─── Reset & Base ──────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; }

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

a { 
    color: var(--primary); 
    text-decoration: none;
    transition: color 0.2s;
}
a:hover { color: var(--primary-dark); }

img { max-width: 100%; height: auto; }

::selection {
    background: var(--primary);
    color: var(--bg);
}

/* ─── Typography ────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    color: var(--text-primary);
}

h1 { font-size: clamp(2rem, 5vw, 3rem); font-weight: 900; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 4vw, 2.25rem); font-weight: 700; letter-spacing: -0.01em; }
h3 { font-size: 1.5rem; font-weight: 600; }
h4 { font-size: 1.25rem; font-weight: 600; }
h5 { font-size: 1.125rem; font-weight: 600; }
h6 { font-size: 1rem; font-weight: 600; }

.overline {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    font-weight: 700;
    color: var(--primary);
}

/* ─── Navbar ────────────────────────────────────────── */
.lms-navbar {
    background: var(--bg);
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 1030;
}

.lms-navbar .navbar-brand {
    color: var(--text-primary);
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.25rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    letter-spacing: -0.01em;
}
.lms-navbar .navbar-brand:hover { color: var(--primary); }

.brand-icon {
    background: var(--primary);
    color: var(--bg);
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
}

.lms-navbar .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius);
    transition: all 0.2s;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.9rem;
}
.lms-navbar .nav-link:hover {
    color: var(--text-primary) !important;
    background: var(--surface);
}
.lms-navbar .nav-link.active { 
    color: var(--primary) !important;
    background: var(--primary-glow);
}

.lms-navbar .dropdown-menu {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
}
.lms-navbar .dropdown-item {
    color: var(--text-secondary);
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
}
.lms-navbar .dropdown-item:hover {
    background: var(--surface-hover);
    color: var(--text-primary);
}
.lms-navbar .dropdown-divider {
    border-color: var(--border);
}

.navbar-toggler {
    border-color: var(--border);
}
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 255, 255, 0.7%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.user-avatar {
    width: 32px;
    height: 32px;
    background: var(--primary);
    color: var(--bg);
    border-radius: var(--radius);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.875rem;
    font-family: var(--font-heading);
}

/* ─── Main content area ─────────────────────────────── */
.lms-main { flex: 1; }

/* ─── Footer ────────────────────────────────────────── */
.lms-footer {
    background: var(--surface);
    color: var(--text-secondary);
    border-top: 1px solid var(--border);
    margin-top: auto;
}
.lms-footer a { color: var(--text-primary); }
.lms-footer a:hover { color: var(--primary); }

/* ─── Hero (landing page) ───────────────────────────── */
.hero-section {
    background: var(--bg);
    color: var(--text-primary);
    padding: 120px 0 100px;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(248, 181, 38, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -100px;
    left: -100px;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 192, 61, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--primary-glow);
    border: 1px solid rgba(248, 181, 38, 0.3);
    color: var(--primary);
    padding: 0.4rem 1rem;
    border-radius: var(--radius);
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1.5rem;
    font-family: var(--font-mono);
}

.hero-section h1 { 
    font-weight: 900;
    margin-bottom: 1.5rem;
}
.hero-section .lead { 
    font-size: 1.125rem; 
    color: var(--text-secondary); 
    max-width: 540px;
    line-height: 1.7;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    margin-top: 3rem;
    flex-wrap: wrap;
}
.hero-stat {
    border-left: 2px solid var(--primary);
    padding-left: 1rem;
}
.hero-stat strong { 
    font-family: var(--font-heading);
    font-size: 2.5rem; 
    font-weight: 800; 
    color: var(--text-primary); 
    display: block;
    line-height: 1;
}
.hero-stat span { 
    font-size: 0.875rem; 
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

/* ─── Cards ─────────────────────────────────────────── */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    transition: border-color 0.2s;
}
.card:hover { 
    border-color: var(--text-muted);
}

.card-body {
    padding: 1.5rem;
}

.course-card { overflow: hidden; }
.course-card .course-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
    border: 1px solid var(--border);
}
.icon-html { background: rgba(227, 79, 38, 0.1); color: #e34f26; }
.icon-css  { background: rgba(21, 114, 182, 0.1); color: #1572b6; }
.icon-js   { background: rgba(247, 223, 30, 0.1); color: #f7df1e; }
.icon-gen  { background: var(--primary-glow); color: var(--primary); }

/* ─── Progress bars ─────────────────────────────────── */
.progress { 
    border-radius: var(--radius); 
    height: 6px; 
    background: var(--border);
    overflow: hidden;
}
.progress-bar { 
    background: var(--primary);
    border-radius: var(--radius); 
    transition: width 0.5s ease;
}

/* ─── Stat cards ────────────────────────────────────── */
.stat-card {
    background: var(--surface);
    border-radius: var(--radius);
    padding: 1.5rem;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 1rem;
}
.stat-icon {
    width: 52px;
    height: 52px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    flex-shrink: 0;
}
.stat-icon.purple { background: rgba(139, 92, 246, 0.15); color: #8b5cf6; }
.stat-icon.green  { background: var(--primary-glow); color: var(--primary); }
.stat-icon.orange { background: rgba(255, 204, 0, 0.15); color: var(--warning); }
.stat-icon.red    { background: rgba(255, 59, 48, 0.15); color: var(--danger); }
.stat-icon.blue   { background: rgba(59, 130, 246, 0.15); color: #3b82f6; }

.stat-value { 
    font-family: var(--font-heading);
    font-size: 2rem; 
    font-weight: 800; 
    line-height: 1;
    color: var(--text-primary);
}
.stat-label { 
    font-size: 0.875rem; 
    color: var(--text-muted); 
    margin-top: 4px;
}

/* ─── Eligibility badge ─────────────────────────────── */
.eligibility-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius);
    font-weight: 700;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-family: var(--font-mono);
}
.eligibility-badge.eligible { 
    background: var(--primary-glow); 
    color: var(--primary); 
    border: 1px solid rgba(248, 181, 38, 0.3);
}
.eligibility-badge.ineligible { 
    background: var(--surface); 
    color: var(--text-muted); 
    border: 1px solid var(--border);
}

/* ─── Lesson viewer ─────────────────────────────────── */
.lesson-layout { 
    display: grid; 
    grid-template-columns: 300px 1fr; 
    min-height: calc(100vh - 60px);
}
@media (max-width: 991px) { 
    .lesson-layout { grid-template-columns: 1fr; } 
}

.lesson-sidebar {
    background: var(--surface);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    position: sticky;
    top: 60px;
    max-height: calc(100vh - 60px);
}

.lesson-sidebar .sidebar-header {
    padding: 1.25rem 1rem;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
}
.lesson-sidebar .sidebar-header a {
    color: var(--text-secondary);
}
.lesson-sidebar .sidebar-header a:hover {
    color: var(--primary);
}

.sidebar-module { border-bottom: 1px solid var(--border); }
.sidebar-module-title {
    padding: 1rem;
    font-weight: 600;
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg);
    color: var(--text-primary);
}
.sidebar-module-locked .sidebar-module-title {
    color: var(--text-muted);
}

.sidebar-lesson-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem 0.7rem 2rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.15s;
    border-left: 2px solid transparent;
}
.sidebar-lesson-link:hover { 
    background: var(--surface-hover); 
    color: var(--text-primary);
}
.sidebar-lesson-link.active {
    background: var(--primary-glow);
    border-left-color: var(--primary);
    color: var(--primary);
    font-weight: 500;
}
.sidebar-lesson-link.done .lesson-check { color: var(--success); }
.sidebar-lesson-link .lesson-check { font-size: 0.8rem; }

.sidebar-quiz-link {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.7rem 1rem 0.7rem 2rem;
    font-size: 0.875rem;
    color: var(--warning);
    text-decoration: none;
    transition: background 0.15s;
}
.sidebar-quiz-link:hover { 
    background: rgba(255, 204, 0, 0.1);
}

/* ─── Module completion indicator ───────────────────── */
.module-status {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.75rem;
    font-weight: 600;
}
.module-status.done  { color: var(--success); }
.module-status.wip   { color: var(--warning); }
.module-status.todo  { color: var(--text-muted); }

/* ─── Lesson content ────────────────────────────────── */
.lesson-content {
    padding: 2.5rem;
    max-width: 900px;
}

.lesson-content h2 { 
    font-size: 2rem; 
    font-weight: 700; 
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}
.lesson-content h3 { 
    font-size: 1.25rem; 
    font-weight: 600; 
    margin-top: 2.5rem; 
    margin-bottom: 1rem; 
    color: var(--text-primary);
    border-left: 3px solid var(--primary);
    padding-left: 1rem;
}
.lesson-content p { 
    color: var(--text-secondary); 
    margin-bottom: 1.25rem;
    line-height: 1.8;
}
.lesson-content ul, .lesson-content ol { 
    color: var(--text-secondary); 
    margin-bottom: 1.25rem; 
    padding-left: 1.5rem;
}
.lesson-content li { margin-bottom: 0.5rem; }

/* Code blocks */
.lesson-content .code-block,
.lesson-content pre {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
    overflow-x: auto;
}
.lesson-content pre code,
.lesson-content .code-block code {
    font-family: var(--font-mono);
    font-size: 0.875rem;
    color: var(--text-primary);
    line-height: 1.8;
    white-space: pre;
}

/* Inline code */
.lesson-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: var(--primary-glow);
    color: var(--primary);
    padding: 0.2em 0.5em;
    border-radius: var(--radius);
}
.lesson-content pre code { 
    background: none; 
    color: var(--text-primary); 
    padding: 0;
}

/* Syntax highlighting hints */
.lesson-content pre .comment { color: var(--text-muted); }
.lesson-content pre .keyword { color: var(--primary); }
.lesson-content pre .string { color: var(--warning); }
.lesson-content pre .number { color: #FF6B6B; }

.lesson-content table { 
    font-size: 0.9rem;
    width: 100%;
    margin: 1.5rem 0;
}
.lesson-content table th { 
    background: var(--surface); 
    font-weight: 600;
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    color: var(--text-primary);
    text-align: left;
}
.lesson-content table td {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    color: var(--text-secondary);
}

/* Analogy boxes */
.analogy-box {
    background: rgba(139, 92, 246, 0.1);
    border: 1px solid rgba(139, 92, 246, 0.3);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
}
.analogy-box h4 {
    color: #8b5cf6;
    margin-bottom: 0.75rem;
    font-size: 1rem;
}
.analogy-box p {
    color: var(--text-secondary);
    margin: 0;
}

/* Common mistakes box */
.mistakes-box {
    background: rgba(255, 59, 48, 0.1);
    border: 1px solid rgba(255, 59, 48, 0.3);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
}
.mistakes-box h4 {
    color: var(--danger);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}
.mistakes-box ul {
    margin: 0;
    padding-left: 1.25rem;
}
.mistakes-box li {
    color: var(--text-secondary);
}

/* Key takeaways box */
.takeaways-box {
    background: var(--primary-glow);
    border: 1px solid rgba(248, 181, 38, 0.3);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin: 1.5rem 0;
}
.takeaways-box h4 {
    color: var(--primary);
    margin-bottom: 0.75rem;
    font-size: 1rem;
}
.takeaways-box ul {
    margin: 0;
    padding-left: 1.25rem;
}
.takeaways-box li {
    color: var(--text-secondary);
}

/* Video placeholder */
.video-placeholder {
    background: var(--surface);
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 3rem;
    text-align: center;
    margin: 1.5rem 0;
}
.video-placeholder i {
    font-size: 3rem;
    color: var(--text-muted);
    margin-bottom: 1rem;
    display: block;
}
.video-placeholder p {
    color: var(--text-muted);
    margin: 0;
}

.lesson-nav-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--border);
    padding: 1.5rem 2.5rem;
    background: var(--surface);
    margin-top: 2rem;
}

/* ─── Code Exercise Editor ──────────────────────────── */
.code-exercise {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin: 2rem 0;
    overflow: hidden;
}

.code-exercise-header {
    background: var(--bg);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.code-exercise-header h4 {
    margin: 0;
    font-size: 1rem;
    color: var(--primary);
    font-family: var(--font-mono);
}

.code-exercise-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    min-height: 400px;
}

@media (max-width: 991px) {
    .code-exercise-body {
        grid-template-columns: 1fr;
    }
}

.code-editor-pane {
    border-right: 1px solid var(--border);
}

.code-editor-pane textarea {
    width: 100%;
    height: 100%;
    min-height: 400px;
    background: var(--bg);
    color: var(--text-primary);
    border: none;
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.6;
    resize: none;
    outline: none;
}

.code-preview-pane {
    background: #fff;
    min-height: 400px;
}

.code-preview-pane iframe {
    width: 100%;
    height: 100%;
    min-height: 400px;
    border: none;
}

.code-exercise-footer {
    background: var(--bg);
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.hint-toggle {
    color: var(--warning);
    font-size: 0.875rem;
    cursor: pointer;
}
.hint-toggle:hover {
    text-decoration: underline;
}

.hint-content {
    background: rgba(255, 204, 0, 0.1);
    border: 1px solid rgba(255, 204, 0, 0.3);
    padding: 1rem 1.5rem;
    display: none;
}
.hint-content.show {
    display: block;
}

/* ─── Quiz styles ───────────────────────────────────── */
.quiz-container { max-width: 800px; margin: 0 auto; padding: 2.5rem; }

.question-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
}
.question-number {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--primary);
    margin-bottom: 0.75rem;
}
.question-text { 
    font-size: 1.125rem; 
    font-weight: 600; 
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    line-height: 1.5;
}

.option-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem 1.25rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 0.75rem;
    cursor: pointer;
    transition: all 0.15s;
    font-size: 0.95rem;
    color: var(--text-secondary);
}
.option-label:hover { 
    border-color: var(--primary); 
    background: var(--primary-glow);
    color: var(--text-primary);
}
.option-label input[type="radio"] { 
    accent-color: var(--primary);
    width: 18px;
    height: 18px;
}
.option-label.correct { 
    border-color: var(--success); 
    background: rgba(46, 160, 67, 0.1);
    color: var(--success);
}
.option-label.wrong { 
    border-color: var(--danger); 
    background: rgba(255, 59, 48, 0.1);
    color: var(--danger);
}

/* ─── Result card ───────────────────────────────────── */
.result-card {
    text-align: center;
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    padding: 4rem 2rem;
}
.result-score {
    font-family: var(--font-heading);
    font-size: 5rem;
    font-weight: 900;
    line-height: 1;
    margin: 1.5rem 0;
}
.result-score.pass { color: var(--success); }
.result-score.fail { color: var(--danger); }
.result-icon { font-size: 4rem; }

/* ─── Auth pages ────────────────────────────────────── */
.auth-wrapper {
    min-height: calc(100vh - 60px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
    background: var(--bg);
}
.auth-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 3rem;
    width: 100%;
    max-width: 440px;
}
.auth-card .auth-logo { 
    text-align: center; 
    margin-bottom: 2.5rem;
}
.auth-card .auth-logo .brand-icon { 
    width: 56px; 
    height: 56px; 
    font-size: 1.75rem; 
    margin: 0 auto;
    border-radius: var(--radius);
}

/* ─── Form controls ─────────────────────────────────── */
.form-label { 
    font-weight: 600; 
    font-size: 0.875rem; 
    margin-bottom: 0.5rem; 
    color: var(--text-primary);
}
.form-control, .form-select {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: border-color 0.2s, box-shadow 0.2s;
}
.form-control:focus, .form-select:focus {
    background: var(--bg);
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-glow);
    outline: none;
    color: var(--text-primary);
}
.form-control::placeholder {
    color: var(--text-muted);
}
textarea.form-control { 
    resize: vertical; 
    min-height: 120px;
}

.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3e%3cpath fill='none' stroke='%23A1A1AA' stroke-linecap='round' stroke-linejoin='round' stroke-width='2' d='M2 5l6 6 6-6'/%3e%3c/svg%3e");
}

/* ─── Buttons ───────────────────────────────────────── */
.btn { 
    border-radius: var(--radius); 
    font-weight: 600; 
    transition: all 0.2s;
    font-family: var(--font-body);
    padding: 0.6rem 1.25rem;
}

.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--bg);
}
.btn-primary:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--bg);
}
.btn-primary:focus {
    box-shadow: 0 0 0 3px var(--primary-glow);
}

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

.btn-outline-secondary {
    color: var(--text-secondary);
    border-color: var(--border);
    background: transparent;
}
.btn-outline-secondary:hover {
    background: var(--surface-hover);
    border-color: var(--text-muted);
    color: var(--text-primary);
}

.btn-success {
    background: var(--success);
    border-color: var(--success);
    color: var(--bg);
}
.btn-success:hover {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    color: var(--bg);
}

.btn-warning {
    background: var(--warning);
    border-color: var(--warning);
    color: var(--bg);
}

.btn-danger {
    background: var(--danger);
    border-color: var(--danger);
    color: #fff;
}

.btn-sm {
    padding: 0.4rem 0.875rem;
    font-size: 0.875rem;
}

.btn-lg {
    padding: 0.875rem 2rem;
    font-size: 1rem;
}

/* ─── Admin layout ──────────────────────────────────── */
.admin-layout { 
    display: grid; 
    grid-template-columns: 260px 1fr; 
    min-height: calc(100vh - 60px);
}
@media (max-width: 991px) { 
    .admin-layout { grid-template-columns: 1fr; } 
}

.admin-sidebar {
    background: var(--surface);
    border-right: 1px solid var(--border);
    padding: 1.5rem 0;
}
.admin-sidebar a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.8rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
    border-left: 2px solid transparent;
}
.admin-sidebar a:hover {
    color: var(--text-primary);
    background: var(--surface-hover);
}
.admin-sidebar a.active {
    color: var(--primary);
    background: var(--primary-glow);
    border-left-color: var(--primary);
}
.admin-sidebar .sidebar-section {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--text-muted);
    padding: 1.5rem 1.5rem 0.5rem;
    font-weight: 700;
}

.admin-content { 
    padding: 2rem;
    background: var(--bg);
}
.admin-page-title { 
    font-size: 1.75rem; 
    font-weight: 700; 
    margin-bottom: 1.5rem;
    font-family: var(--font-heading);
}

/* ─── Tables ────────────────────────────────────────── */
.table { 
    font-size: 0.9rem;
    color: var(--text-secondary);
    --bs-table-bg: transparent;
}
.table th { 
    font-weight: 600; 
    color: var(--text-muted); 
    font-size: 0.75rem; 
    text-transform: uppercase; 
    letter-spacing: 0.08em;
    background: var(--surface);
    border-color: var(--border);
    padding: 1rem;
}
.table td { 
    vertical-align: middle;
    border-color: var(--border);
    padding: 1rem;
}
.table-hover tbody tr:hover { 
    background: var(--surface-hover);
    --bs-table-hover-bg: var(--surface-hover);
}

/* ─── Breadcrumb ────────────────────────────────────── */
.breadcrumb { 
    font-size: 0.875rem;
    margin-bottom: 0;
}
.breadcrumb-item a { 
    color: var(--text-secondary);
}
.breadcrumb-item a:hover {
    color: var(--primary);
}
.breadcrumb-item.active { 
    color: var(--text-muted);
}
.breadcrumb-item + .breadcrumb-item::before {
    color: var(--text-muted);
}

/* ─── Alerts ────────────────────────────────────────── */
.alert { 
    border: none; 
    border-radius: var(--radius); 
    font-size: 0.9rem;
    border: 1px solid transparent;
}
.alert-success { 
    background: rgba(46, 160, 67, 0.1); 
    color: var(--success);
    border-color: rgba(46, 160, 67, 0.3);
}
.alert-danger { 
    background: rgba(255, 59, 48, 0.1); 
    color: var(--danger);
    border-color: rgba(255, 59, 48, 0.3);
}
.alert-warning { 
    background: rgba(255, 204, 0, 0.1); 
    color: var(--warning);
    border-color: rgba(255, 204, 0, 0.3);
}
.alert-info { 
    background: rgba(59, 130, 246, 0.1); 
    color: #3b82f6;
    border-color: rgba(59, 130, 246, 0.3);
}

.alert .btn-close {
    filter: invert(1);
}

/* ─── Page header banner ────────────────────────────── */
.page-banner {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    color: var(--text-primary);
    padding: 2.5rem 0;
}
.page-banner h1 { 
    font-size: 2rem; 
    font-weight: 700; 
    margin-bottom: 0.5rem;
}
.page-banner p { 
    color: var(--text-secondary); 
    margin: 0;
}

/* ─── Empty states ──────────────────────────────────── */
.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}
.empty-state i { 
    font-size: 4rem; 
    margin-bottom: 1.5rem; 
    display: block;
    opacity: 0.5;
}

/* ─── Badge chips ───────────────────────────────────── */
.badge {
    font-weight: 600;
    padding: 0.4rem 0.75rem;
    border-radius: var(--radius);
    font-size: 0.75rem;
}
.badge-chip {
    padding: 0.35rem 0.85rem;
    border-radius: var(--radius);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}
.chip-published { 
    background: var(--primary-glow); 
    color: var(--primary);
}
.chip-draft { 
    background: var(--surface); 
    color: var(--text-muted);
    border: 1px solid var(--border);
}

.bg-success { background-color: var(--success) !important; color: var(--bg) !important; }
.bg-danger { background-color: var(--danger) !important; }
.bg-warning { background-color: var(--warning) !important; color: var(--bg) !important; }
.bg-primary { background-color: var(--primary) !important; color: var(--bg) !important; }
.bg-secondary { background-color: var(--surface) !important; color: var(--text-secondary) !important; border: 1px solid var(--border); }

/* ─── Analytics Dashboard ───────────────────────────── */
.analytics-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
}
@media (max-width: 1200px) {
    .analytics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}
@media (max-width: 768px) {
    .analytics-grid {
        grid-template-columns: 1fr;
    }
}

.analytics-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.analytics-card-title {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.analytics-card-value {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--text-primary);
    line-height: 1;
}

.analytics-card-change {
    font-size: 0.875rem;
    margin-top: 0.5rem;
}
.analytics-card-change.positive { color: var(--success); }
.analytics-card-change.negative { color: var(--danger); }

/* Candidate Review Cards */
.candidate-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.candidate-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1rem;
}

.candidate-avatar {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: var(--bg);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    font-family: var(--font-heading);
}

.candidate-info h4 {
    margin: 0;
    font-size: 1.125rem;
}

.candidate-info p {
    margin: 0;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.candidate-stats {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    margin: 1rem 0;
    padding: 1rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}

.candidate-stat {
    text-align: center;
}

.candidate-stat-value {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.candidate-stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.eligibility-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.875rem;
    font-family: var(--font-mono);
}

.eligibility-status.pending {
    background: rgba(255, 204, 0, 0.1);
    color: var(--warning);
    border: 1px solid rgba(255, 204, 0, 0.3);
}

.eligibility-status.eligible {
    background: var(--primary-glow);
    color: var(--primary);
    border: 1px solid rgba(248, 181, 38, 0.3);
}

.eligibility-status.needs_review {
    background: rgba(139, 92, 246, 0.1);
    color: #8b5cf6;
    border: 1px solid rgba(139, 92, 246, 0.3);
}

.eligibility-status.rejected {
    background: rgba(255, 59, 48, 0.1);
    color: var(--danger);
    border: 1px solid rgba(255, 59, 48, 0.3);
}

/* ─── Utilities ─────────────────────────────────────── */
.text-muted    { color: var(--text-muted) !important; }
.text-primary  { color: var(--primary) !important; }
.text-success  { color: var(--success) !important; }
.text-danger   { color: var(--danger) !important; }
.text-warning  { color: var(--warning) !important; }
.text-white    { color: var(--text-primary) !important; }
.fw-500        { font-weight: 500; }
.fw-600        { font-weight: 600; }
.fw-700        { font-weight: 700; }
.rounded-xl    { border-radius: var(--radius) !important; }
.bg-white      { background: var(--surface) !important; }

/* Custom scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg);
}
::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* ─── Responsive ────────────────────────────────────── */
@media (max-width: 767px) {
    .hero-section { padding: 80px 0 60px; }
    .lesson-content { padding: 1.5rem; }
    .lesson-nav-bar { 
        padding: 1rem 1.5rem; 
        flex-direction: column; 
        gap: 1rem;
    }
    .quiz-container { padding: 1.5rem; }
    .admin-content { padding: 1.5rem; }
    .auth-card { padding: 2rem 1.5rem; }
    .hero-stats { gap: 2rem; }
    .candidate-stats {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Terminal-style loader */
.terminal-loader {
    font-family: var(--font-mono);
    color: var(--primary);
    font-size: 0.875rem;
}
.terminal-loader::after {
    content: '_';
    animation: blink 1s infinite;
}
@keyframes blink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

/* ─── Brand Logo in Navbar ──────────────────────────── */
.navbar-brand-logo {
    height: 36px;
    width: auto;
    object-fit: contain;
}

/* ─── Admin Settings Page ───────────────────────────── */
.settings-section {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    margin-bottom: 1.5rem;
}

.settings-section h3 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
}

.current-asset-preview {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    padding: 1.25rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 1rem;
}

.current-asset-preview img {
    max-height: 64px;
    width: auto;
    object-fit: contain;
}

.current-asset-preview .favicon-preview {
    max-height: 32px;
}

.file-upload-zone {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    text-align: center;
    transition: border-color 0.2s, background 0.2s;
    cursor: pointer;
    position: relative;
}

.file-upload-zone:hover {
    border-color: var(--primary);
    background: var(--primary-glow);
}

.file-upload-zone input[type="file"] {
    position: absolute;
    inset: 0;
    opacity: 0;
    cursor: pointer;
}

.file-upload-zone i {
    font-size: 2rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 0.75rem;
}

.file-upload-zone p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin: 0;
}

.file-upload-zone .file-name {
    color: var(--primary);
    font-weight: 600;
    margin-top: 0.5rem;
    display: none;
}