/* ============================================================
   ConstruMil Academy - Design System
   Premium Dark Mode + Glassmorphism + Responsive
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

/* ============================================================
   CSS Custom Properties (Design Tokens)
   ============================================================ */
:root {
    --bg-primary: #121212;
    --bg-secondary: #1a1a1a;
    --bg-card: #242424;
    --bg-card-hover: #2c2c2c;
    --bg-glass: rgba(255, 255, 255, 0.05);
    --bg-input: rgba(255, 255, 255, 0.05);
    --bg-sidebar: #181818;

    --accent-orange: #2B60A8;
    --accent-orange-light: #3C76C4;
    --accent-teal: #2B60A8;
    --accent-teal-light: #3C76C4;
    --accent-purple: #4f46e5;
    --accent-yellow: #ca8a04;
    --accent-green: #16a34a;
    --accent-red: #dc2626;
    --accent-blue: #2B60A8;

    --text-primary: #e5e5e5;
    --text-secondary: #a3a3a3;
    --text-muted: #737373;
    --text-dark: #171717;

    --border-subtle: #333333;
    --border-hover: #404040;

    --gradient-primary: var(--accent-blue);
    --gradient-teal: var(--accent-teal);
    --gradient-progress: var(--accent-blue);
    --gradient-card: var(--bg-card);
    --gradient-bg: transparent;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
    --shadow-glow-orange: none;
    --shadow-glow-teal: none;

    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
    --radius-xl: 12px;
    --radius-full: 50%;

    --transition: all 0.2s ease-in-out;
    --transition-fast: all 0.1s ease-in-out;

    --sidebar-width: 260px;
    --header-height: 64px;
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-bg);
    pointer-events: none;
    z-index: 0;
}

a { color: var(--accent-teal); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent-teal-light); }

button { cursor: pointer; font-family: inherit; border: none; outline: none; }
input, select, textarea { font-family: inherit; outline: none; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ============================================================
   Login Screen
   ============================================================ */
.login-screen {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.login-container {
    width: 100%;
    max-width: 420px;
    animation: fadeInUp 0.6s ease-out;
}

.login-logo {
    text-align: center;
    margin-bottom: 32px;
}

.login-logo .logo-icon {
    display: none;
}

.login-logo h1 {
    display: none;
}

.main-logo-img {
    max-width: 280px;
    height: auto;
    display: block;
    margin: 0 auto 16px auto;
}

.login-logo p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

.login-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    padding: 36px;
    box-shadow: var(--shadow-lg);
}

.login-card h2 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 24px;
    text-align: center;
}

.form-group {
    margin-bottom: 18px;
}

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 15px;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(43, 96, 168, 0.15);
}

.form-group input::placeholder {
    color: var(--text-muted);
}

.login-error {
    background: rgba(255,82,82,0.1);
    border: 1px solid rgba(255,82,82,0.3);
    color: var(--accent-red);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    margin-bottom: 16px;
    display: none;
    animation: shake 0.4s ease;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 600;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-primary);
    color: white;
    width: 100%;
    padding: 14px;
    font-size: 15px;
    box-shadow: var(--shadow-glow-orange);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(43, 96, 168, 0.4);
}

.btn-secondary {
    background: var(--bg-glass);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}

.btn-teal {
    background: var(--gradient-teal);
    color: var(--text-dark);
}

.btn-teal:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow-teal);
}

.btn-danger {
    background: rgba(255,82,82,0.15);
    color: var(--accent-red);
    border: 1px solid rgba(255,82,82,0.3);
}

.btn-danger:hover {
    background: rgba(255,82,82,0.25);
}

.btn-sm { padding: 8px 16px; font-size: 13px; }
.btn-lg { padding: 16px 32px; font-size: 16px; }

.btn-icon {
    width: 36px;
    height: 36px;
    padding: 0;
    border-radius: var(--radius-sm);
    font-size: 16px;
}

/* ============================================================
   App Layout (Sidebar + Content)
   ============================================================ */
.app-layout {
    display: flex;
    min-height: 100vh;
    position: relative;
    z-index: 1;
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-subtle);
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    display: flex;
    flex-direction: column;
    z-index: 100;
    transition: var(--transition);
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-header .logo-sm {
    display: none;
}

.sidebar-logo-img {
    max-width: 160px;
    height: auto;
    display: block;
}

.brand {
    display: none;
}

.brand-sub {
    display: none;
}

.sidebar-nav {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 24px;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    margin-bottom: 2px;
}

.nav-item:hover {
    background: var(--bg-glass);
    color: var(--text-primary);
}

.nav-item.active {
    background: rgba(43, 96, 168, 0.12); /* #2B60A8 with 12% opacity */
    color: var(--accent-blue);
}

.nav-item .nav-icon {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border-subtle);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px;
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    color: white;
    flex-shrink: 0;
}

.user-details {
    flex: 1;
    min-width: 0;
}

.user-name {
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-role {
    font-size: 11px;
    color: var(--text-muted);
}

.btn-logout {
    width: 100%;
    margin-top: 8px;
    padding: 8px;
    background: rgba(255,82,82,0.1);
    color: var(--accent-red);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
}

.btn-logout:hover {
    background: rgba(255,82,82,0.2);
}

/* Mobile hamburger */
.hamburger {
    display: none;
    position: fixed;
    top: 14px;
    left: 14px;
    z-index: 200;
    width: 40px;
    height: 40px;
    border-radius: var(--radius-sm);
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    align-items: center;
    justify-content: center;
    font-size: 20px;
    color: var(--text-primary);
    cursor: pointer;
}

.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 99;
}

/* Main Content */
.main-content {
    flex: 1;
    min-width: 0;
    margin-left: var(--sidebar-width);
    padding: 32px;
    min-height: 100vh;
}

.page-header {
    margin-bottom: 28px;
}

.page-header h2 {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.page-header p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

/* ============================================================
   Dashboard Cards
   ============================================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--gradient-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 20px;
    transition: var(--transition);
}

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

.stat-card .stat-icon {
    font-size: 28px;
    margin-bottom: 10px;
}

.stat-card .stat-value {
    font-size: 28px;
    font-weight: 800;
    line-height: 1;
}

.stat-card .stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ============================================================
   Training Cards
   ============================================================ */
.training-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.training-card {
    background: var(--gradient-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.training-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--card-accent, var(--gradient-primary));
    opacity: 0;
    transition: var(--transition);
}

.training-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-hover);
    box-shadow: var(--shadow-lg);
}

.training-card:hover::before {
    opacity: 1;
}

.training-card.locked {
    opacity: 0.5;
    cursor: not-allowed;
}

.training-card.locked:hover {
    transform: none;
}

.training-card .card-header {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    margin-bottom: 14px;
}

.training-card .card-icon {
    font-size: 36px;
    flex-shrink: 0;
}

.training-card .card-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.3;
}

.training-card .card-desc {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 4px;
    line-height: 1.5;
}

.training-card .card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid var(--border-subtle);
}

.training-card .card-modules {
    font-size: 12px;
    color: var(--text-muted);
}

.training-card .card-status {
    font-size: 12px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
}

.status-locked { background: rgba(107,107,141,0.15); color: var(--text-muted); }
.status-available { background: rgba(43,96,168,0.15); color: var(--accent-orange); }
.status-progress { background: rgba(59,130,246,0.15); color: var(--accent-blue); }
.status-exam { background: rgba(255,217,61,0.15); color: var(--accent-yellow); }
.status-completed { background: rgba(0,200,81,0.15); color: var(--accent-green); }

/* Progress bar */
.progress-bar {
    width: 100%;
    height: 6px;
    background: rgba(255,255,255,0.06);
    border-radius: 3px;
    margin-top: 12px;
    overflow: hidden;
}

.progress-bar .progress-fill {
    height: 100%;
    background: var(--gradient-progress);
    border-radius: 3px;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.progress-bar .progress-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    animation: shimmer 2s infinite;
}

/* ============================================================
   Training Detail / Module List
   ============================================================ */
.training-detail {
    max-width: 800px;
}

.training-detail .back-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
    cursor: pointer;
    transition: var(--transition);
}

.training-detail .back-btn:hover {
    color: var(--accent-orange);
}

.training-detail .detail-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.training-detail .detail-icon {
    font-size: 48px;
}

.training-detail .detail-info h2 {
    font-size: 24px;
    font-weight: 800;
}

.training-detail .detail-info p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

.module-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.module-item {
    background: var(--gradient-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 18px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    transition: var(--transition);
    cursor: pointer;
}

.module-item:hover:not(.module-locked) {
    border-color: var(--border-hover);
    transform: translateX(4px);
}

.module-item.module-locked {
    opacity: 0.4;
    cursor: not-allowed;
}

.module-item.module-completed {
    border-color: rgba(0,200,81,0.3);
}

.module-number {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 14px;
    flex-shrink: 0;
}

.module-locked .module-number {
    background: rgba(107,107,141,0.15);
    color: var(--text-muted);
}

.module-available .module-number {
    background: rgba(43,96,168,0.15);
    color: var(--accent-orange);
}

.module-completed .module-number {
    background: rgba(0,200,81,0.15);
    color: var(--accent-green);
}

.module-info {
    flex: 1;
}

.module-info h4 {
    font-size: 15px;
    font-weight: 600;
}

.module-info p {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.module-status-icon {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.module-available .module-status-icon {
    background: rgba(43,96,168,0.15);
    color: var(--accent-blue);
}

.module-completed .module-status-icon {
    background: rgba(0,200,81,0.15);
    color: var(--accent-green);
}

.module-locked .module-status-icon {
    background: rgba(107,107,141,0.15);
    color: var(--text-muted);
}

/* Exam button */
.exam-section {
    margin-top: 24px;
    padding: 20px;
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    text-align: center;
}

.exam-section h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
}

.exam-section p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 16px;
}

.exam-section .exam-result {
    padding: 12px;
    border-radius: var(--radius-md);
    margin-bottom: 16px;
    font-weight: 600;
}

.exam-result.passed {
    background: rgba(0,200,81,0.1);
    border: 1px solid rgba(0,200,81,0.3);
    color: var(--accent-green);
}

.exam-result.failed {
    background: rgba(255,82,82,0.1);
    border: 1px solid rgba(255,82,82,0.3);
    color: var(--accent-red);
}

/* ============================================================
   Video Player View
   ============================================================ */
.video-player-view {
    max-width: 800px;
}

.video-container {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 32px;
    text-align: center;
    margin-bottom: 20px;
}

.video-container .video-icon {
    font-size: 64px;
    margin-bottom: 16px;
    display: block;
}

.video-container h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
}

.video-container p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 20px;
}

.video-container .btn-watch {
    font-size: 16px;
    padding: 14px 32px;
}

.video-instructions {
    background: rgba(43,96,168,0.08);
    border: 1px solid rgba(43,96,168,0.2);
    border-radius: var(--radius-md);
    padding: 14px 18px;
    margin-top: 16px;
    font-size: 13px;
    color: var(--accent-orange-light);
    line-height: 1.6;
}

.video-complete-section {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    text-align: center;
}

.video-complete-section .btn-complete {
    padding: 14px 32px;
    font-size: 15px;
}

.video-complete-section .btn-complete:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

/* ============================================================
   Exam View
   ============================================================ */
.exam-view {
    max-width: 720px;
}

.exam-header {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
    text-align: center;
}

.exam-header h2 {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 4px;
}

.exam-header p {
    color: var(--text-secondary);
    font-size: 14px;
}

.exam-progress {
    display: flex;
    align-items: center;
    gap: 8px;
    justify-content: center;
    margin-top: 14px;
    font-size: 13px;
    color: var(--text-muted);
}

.question-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 28px;
    margin-bottom: 16px;
    animation: fadeInUp 0.4s ease-out;
}

.question-number {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-orange);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.question-text {
    font-size: 16px;
    font-weight: 500;
    line-height: 1.6;
    margin-bottom: 18px;
}

.question-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.option-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 14px 16px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
    line-height: 1.5;
}

.option-item:hover {
    background: rgba(255,255,255,0.08);
    border-color: var(--border-hover);
}

.option-item.selected {
    background: rgba(43,96,168,0.1);
    border-color: var(--accent-orange);
}

.option-item.correct {
    background: rgba(0,200,81,0.1);
    border-color: var(--accent-green);
}

.option-item.incorrect {
    background: rgba(255,82,82,0.1);
    border-color: var(--accent-red);
}

.option-letter {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    background: rgba(255,255,255,0.06);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
    flex-shrink: 0;
}

.selected .option-letter {
    background: var(--accent-orange);
    color: white;
}

.correct .option-letter {
    background: var(--accent-green);
    color: white;
}

.incorrect .option-letter {
    background: var(--accent-red);
    color: white;
}

.exam-nav {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-top: 20px;
}

.exam-result-view {
    text-align: center;
    padding: 40px 20px;
}

.result-score {
    font-size: 72px;
    font-weight: 900;
    margin: 16px 0;
}

.result-score.passed { color: var(--accent-green); }
.result-score.failed { color: var(--accent-red); }

.result-message {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
}

.result-detail {
    color: var(--text-secondary);
    font-size: 14px;
    margin-bottom: 24px;
}

/* ============================================================
   Admin Panel
   ============================================================ */
.admin-table-wrapper {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    overflow: hidden;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table th {
    text-align: left;
    padding: 14px 18px;
    font-size: 12px;
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(255,255,255,0.02);
    border-bottom: 1px solid var(--border-subtle);
}

.admin-table td {
    padding: 14px 18px;
    font-size: 14px;
    border-bottom: 1px solid var(--border-subtle);
    vertical-align: middle;
}

.admin-table tr:last-child td {
    border-bottom: none;
}

.admin-table tr:hover td {
    background: rgba(255,255,255,0.02);
}

.progress-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.progress-mini {
    flex: 1;
    height: 6px;
    background: rgba(255,255,255,0.06);
    border-radius: 3px;
    overflow: hidden;
    min-width: 80px;
}

.progress-mini .progress-fill {
    height: 100%;
    background: var(--gradient-progress);
    border-radius: 3px;
    transition: width 0.6s ease;
}

.progress-text {
    font-size: 13px;
    font-weight: 600;
    white-space: nowrap;
    min-width: 36px;
    text-align: right;
}

/* Admin actions */
.admin-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

/* Modal */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(4px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-overlay.active {
    display: flex;
    animation: fadeIn 0.2s ease;
}

.modal {
    background: var(--bg-secondary);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-xl);
    width: 100%;
    max-width: 540px;
    max-height: 85vh;
    overflow-y: auto;
    animation: scaleIn 0.3s ease;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-subtle);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 700;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: var(--bg-glass);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
}

.modal-close:hover {
    background: rgba(255,82,82,0.15);
    color: var(--accent-red);
}

.modal-body {
    padding: 24px;
}

.modal-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--border-subtle);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Checkbox group for assigning trainings */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 8px;
}

.checkbox-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    background: var(--bg-glass);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
}

.checkbox-item:hover {
    background: rgba(255,255,255,0.08);
}

.checkbox-item input[type="checkbox"] {
    accent-color: var(--accent-orange);
    width: 18px;
    height: 18px;
}

/* Gabarito */
.gabarito-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 16px;
}

.gabarito-card .q-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.gabarito-card .q-number {
    background: var(--accent-orange);
    color: white;
    width: 28px;
    height: 28px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 13px;
    font-weight: 700;
    flex-shrink: 0;
}

.gabarito-card .q-text {
    font-size: 15px;
    font-weight: 600;
    line-height: 1.5;
}

.gabarito-card .q-answer {
    background: rgba(0,200,81,0.1);
    border: 1px solid rgba(0,200,81,0.2);
    border-radius: var(--radius-sm);
    padding: 12px 14px;
    margin-top: 10px;
    font-size: 14px;
}

.gabarito-card .q-answer strong {
    color: var(--accent-green);
}

.gabarito-card .q-justification {
    font-size: 13px;
    color: var(--text-secondary);
    margin-top: 8px;
    font-style: italic;
    line-height: 1.5;
}

/* Collaborator detail panel */
.collab-detail-panel {
    background: var(--gradient-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-top: 20px;
}

.collab-detail-panel h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.detail-training-item {
    background: var(--bg-glass);
    border-radius: var(--radius-md);
    padding: 14px 16px;
    margin-bottom: 10px;
}

.detail-training-item .dt-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.detail-training-item .dt-name {
    font-weight: 600;
    font-size: 14px;
}

.detail-training-item .dt-modules {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
}

/* Toast notifications */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 14px 20px;
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    z-index: 2000;
    animation: slideInRight 0.3s ease, fadeOut 0.3s ease 2.7s;
    max-width: 360px;
    box-shadow: var(--shadow-lg);
}

.toast-success {
    background: rgba(0,200,81,0.95);
    color: white;
}

.toast-error {
    background: rgba(255,82,82,0.95);
    color: white;
}

.toast-info {
    background: rgba(59,130,246,0.95);
    color: white;
}

/* Empty state */
.empty-state {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.empty-state .empty-icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state h3 {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.empty-state p {
    font-size: 14px;
}

/* Loading spinner */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}

.spinner {
    width: 36px;
    height: 36px;
    border: 3px solid var(--border-subtle);
    border-top-color: var(--accent-orange);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

/* Tab system */
.tabs {
    display: flex;
    gap: 4px;
    margin-bottom: 20px;
    background: var(--bg-glass);
    border-radius: var(--radius-md);
    padding: 4px;
}

.tab-btn {
    flex: 1;
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    background: transparent;
    transition: var(--transition);
    text-align: center;
}

.tab-btn:hover {
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--accent-orange);
    color: white;
}

/* Search */
.search-bar {
    position: relative;
    margin-bottom: 20px;
}

.search-bar input {
    width: 100%;
    padding: 12px 16px 12px 42px;
    background: var(--bg-glass);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 14px;
}

.search-bar .search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 16px;
    color: var(--text-muted);
}

/* ============================================================
   Animations
   ============================================================ */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeOut {
    from { opacity: 1; }
    to { opacity: 0; }
}

@keyframes scaleIn {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(40px); }
    to { opacity: 1; transform: translateX(0); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-8px); }
    75% { transform: translateX(8px); }
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ============================================================
   Utilities
   ============================================================ */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.flex-wrap { flex-wrap: wrap; }
.w-full { width: 100%; }

/* ============================================================
   Responsive (Mobile)
   ============================================================ */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
    }

    .sidebar-overlay.open {
        display: block;
    }

    .main-content {
        margin-left: 0;
        padding: 20px;
        padding-top: 68px;
    }

    .page-header h2 {
        font-size: 22px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .training-grid {
        grid-template-columns: 1fr;
    }

    .admin-table-wrapper {
        overflow-x: auto;
    }

    .admin-table {
        min-width: 600px;
    }

    .modal {
        max-width: 100%;
        margin: 10px;
    }

    .exam-nav {
        flex-direction: column;
    }

    .exam-nav .btn {
        width: 100%;
    }

    .toast {
        left: 16px;
        right: 16px;
        bottom: 16px;
        max-width: none;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .login-card {
        padding: 24px;
    }

    .stat-card .stat-value {
        font-size: 24px;
    }
}

/* ============================================================
   Gabarito Tabs
   ============================================================ */
.gabarito-tabs {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    overflow-y: hidden;
    width: 100%;
    max-width: 100%;
    padding-bottom: 16px;
    margin-bottom: 24px;
    -webkit-overflow-scrolling: touch;
}

.gabarito-tabs::-webkit-scrollbar {
    height: 8px;
}
.gabarito-tabs::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
}
.gabarito-tabs::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.2);
    border-radius: 8px;
}
.gabarito-tabs::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.3);
}

.gabarito-tab-btn {
    white-space: nowrap;
    flex-shrink: 0;
    padding: 10px 16px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-subtle);
    background: var(--bg-input);
    color: var(--text-secondary);
    transition: var(--transition-fast);
    cursor: pointer;
}

.gabarito-tab-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.gabarito-tab-btn.active {
    background: var(--accent-teal);
    border-color: var(--accent-teal);
    color: #ffffff;
}