/**
 * PLUSACADEMY V2 - Estilos Principales
 *
 * Paleta de colores:
 * - Principal: Negro (#000000)
 * - Secundario: Amarillo (#FFD700)
 * - Fondo: Blanco (#FFFFFF)
 * - Acentos: Grises
 */

/* ==================== VARIABLES CSS ==================== */
:root {
    /* Colores principales */
    --color-primary: #FFD700;
    --color-primary-dark: #E6C200;
    --color-primary-light: #FFEB80;

    --color-black: #000000;
    --color-white: #FFFFFF;

    --color-gray-100: #F8F9FA;
    --color-gray-200: #E9ECEF;
    --color-gray-300: #DEE2E6;
    --color-gray-400: #CED4DA;
    --color-gray-500: #ADB5BD;
    --color-gray-600: #6C757D;
    --color-gray-700: #495057;
    --color-gray-800: #343A40;
    --color-gray-900: #212529;

    /* Estados */
    --color-success: #28A745;
    --color-error: #DC3545;
    --color-warning: #FFC107;
    --color-info: #17A2B8;

    /* Niveles */
    --color-nivel-basico: #28A745;
    --color-nivel-intermedio: #FFC107;
    --color-nivel-avanzado: #DC3545;

    /* Tipografia */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-size-base: 16px;
    --font-size-sm: 0.875rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-2xl: 1.5rem;
    --font-size-3xl: 2rem;

    /* Espaciado */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Bordes */
    --border-radius: 8px;
    --border-radius-lg: 12px;
    --border-radius-full: 9999px;

    /* Sombras */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.15);

    /* Transiciones */
    --transition: all 0.3s ease;

    /* Layout */
    --header-height: 70px;
    --container-max-width: 1200px;
}

/* ==================== RESET Y BASE ==================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: var(--font-size-base);
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-family);
    background-color: var(--color-white);
    color: var(--color-gray-900);
    line-height: 1.6;
    min-height: 100vh;
    padding-top: var(--header-height);
}

a {
    color: var(--color-black);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--color-primary-dark);
}

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

ul, ol {
    list-style: none;
}

/* ==================== TIPOGRAFIA ==================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
    color: var(--color-black);
}

h1 { font-size: var(--font-size-3xl); }
h2 { font-size: var(--font-size-2xl); }
h3 { font-size: var(--font-size-xl); }
h4 { font-size: var(--font-size-lg); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-700);
}

/* ==================== LAYOUT ==================== */
.container {
    max-width: var(--container-max-width);
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.main-content {
    flex: 1;
    padding: var(--spacing-2xl) 0;
}

/* Grid */
.grid {
    display: grid;
    gap: var(--spacing-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Flex */
.flex {
    display: flex;
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.flex-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.gap-sm { gap: var(--spacing-sm); }
.gap-md { gap: var(--spacing-md); }
.gap-lg { gap: var(--spacing-lg); }

/* ==================== HEADER ==================== */
.header {
    background-color: var(--color-black);
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

.header .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-white);
}

.logo span {
    color: var(--color-primary);
}

.nav {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
}

.nav a {
    color: var(--color-white);
    font-weight: 500;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.nav a:hover {
    color: var(--color-primary);
}

.nav a.active {
    background-color: var(--color-primary);
    color: var(--color-black);
}

/* ==================== BOTONES ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-base);
    font-weight: 600;
    border-radius: var(--border-radius);
    border: 2px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: var(--color-black);
}

.btn-primary:hover {
    background-color: var(--color-primary-dark);
    color: var(--color-black);
}

.btn-secondary {
    background-color: var(--color-black);
    color: var(--color-white);
}

.btn-secondary:hover {
    background-color: var(--color-gray-800);
}

.btn-outline {
    background-color: transparent;
    border-color: var(--color-black);
    color: var(--color-black);
}

.btn-outline:hover {
    background-color: var(--color-black);
    color: var(--color-white);
}

.btn-lg {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--font-size-lg);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: var(--font-size-sm);
}

.btn-block {
    width: 100%;
}

/* ==================== FORMULARIOS ==================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-gray-800);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md);
    font-size: var(--font-size-base);
    border: 2px solid var(--color-gray-300);
    border-radius: var(--border-radius);
    transition: var(--transition);
    background-color: var(--color-white);
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.2);
}

.form-control.error {
    border-color: var(--color-error);
}

.form-error {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.form-hint {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

/* Input con icono */
.input-group {
    position: relative;
}

.input-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    cursor: pointer;
    color: var(--color-gray-500);
}

/* ==================== CARDS ==================== */
.card {
    background-color: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    transition: var(--transition);
}

.card:hover {
    box-shadow: var(--shadow-lg);
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

/* ==================== CURSO CARD ==================== */
.course-card {
    cursor: pointer;
    overflow: hidden;
}

.course-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-primary);
}

.course-image {
    height: 160px;
    background: linear-gradient(135deg, var(--color-gray-100) 0%, var(--color-gray-200) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-md);
}

.course-title {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-sm);
}

.course-description {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-meta {
    display: flex;
    gap: var(--spacing-md);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-md);
}

/* ==================== BADGES ==================== */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--font-size-sm);
    font-weight: 600;
    border-radius: var(--border-radius-full);
    background-color: var(--color-gray-200);
    color: var(--color-gray-700);
}

.badge-primary {
    background-color: var(--color-primary);
    color: var(--color-black);
}

.badge-success {
    background-color: var(--color-success);
    color: var(--color-white);
}

/* Niveles */
.nivel-basico {
    background-color: var(--color-nivel-basico);
    color: var(--color-white);
}

.nivel-intermedio {
    background-color: var(--color-nivel-intermedio);
    color: var(--color-black);
}

.nivel-avanzado {
    background-color: var(--color-nivel-avanzado);
    color: var(--color-white);
}

/* ==================== PROGRESS BAR ==================== */
.progress {
    height: 8px;
    background-color: var(--color-gray-200);
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

.progress-bar {
    height: 100%;
    background-color: var(--color-primary);
    border-radius: var(--border-radius-full);
    transition: width 0.5s ease;
}

/* ==================== ALERTAS ==================== */
.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.alert-success {
    background-color: #D4EDDA;
    color: #155724;
    border: 1px solid #C3E6CB;
}

.alert-error {
    background-color: #F8D7DA;
    color: #721C24;
    border: 1px solid #F5C6CB;
}

.alert-warning {
    background-color: #FFF3CD;
    color: #856404;
    border: 1px solid #FFEEBA;
}

.alert-info {
    background-color: #D1ECF1;
    color: #0C5460;
    border: 1px solid #BEE5EB;
}

/* ==================== HERO SECTION ==================== */
.hero {
    background-color: var(--color-black);
    color: var(--color-white);
    padding-bottom: var(--spacing-2xl);
    text-align: center;
    margin-top: calc(-1 * var(--header-height));
    padding-top: 120px;
}

.hero h1 {
    color: var(--color-white);
    font-size: 3rem;
    margin-bottom: var(--spacing-md);
}

.hero h1 span {
    color: var(--color-primary);
}

.hero p {
    color: var(--color-gray-400);
    font-size: var(--font-size-lg);
    max-width: 600px;
    margin: 0 auto var(--spacing-xl);
}

/* ==================== FOOTER ==================== */
.footer {
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
}

.footer p {
    color: var(--color-gray-500);
    margin: 0;
}

.footer a {
    color: var(--color-primary);
}

/* ==================== AUTH PAGES ==================== */
.auth-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--color-gray-100);
    padding: var(--spacing-lg);
}

.auth-card {
    background-color: var(--color-white);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-2xl);
    width: 100%;
    max-width: 450px;
}

.auth-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
}

.auth-header .logo {
    font-size: var(--font-size-2xl);
    color: var(--color-black);
    margin-bottom: var(--spacing-md);
}

.auth-footer {
    text-align: center;
    margin-top: var(--spacing-lg);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

/* ==================== SIDEBAR (Panel Usuario) ==================== */
.dashboard-layout {
    display: flex;
    min-height: calc(100vh - var(--header-height));
    margin-top: calc(-1 * var(--header-height));
}

.sidebar {
    width: 260px;
    background-color: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-lg);
    position: fixed;
    top: var(--header-height);
    left: 0;
    bottom: 0;
    overflow-y: auto;
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--color-gray-400);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.sidebar-nav a:hover {
    background-color: var(--color-gray-800);
    color: var(--color-white);
}

.sidebar-nav a.active {
    background-color: var(--color-primary);
    color: var(--color-black);
}

.dashboard-main {
    flex: 1;
    margin-left: 260px;
    padding: var(--spacing-xl);
    background-color: var(--color-gray-100);
}

/* ==================== UTILIDADES ==================== */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--color-gray-600); }
.text-primary { color: var(--color-primary); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }

.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }

.hidden { display: none !important; }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 992px) {
    .grid-3, .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .dashboard-main {
        margin-left: 0;
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-3xl: 1.75rem;
        --font-size-2xl: 1.25rem;
    }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .nav {
        display: none;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .auth-card {
        padding: var(--spacing-lg);
    }
}

/* ==================== ANIMACIONES ==================== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
    animation: fadeIn 0.3s ease-out;
}

/* Loading spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--color-gray-200);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-2xl);
}

/* ==================== HEADER NAVIGATION ==================== */
.header .nav {
    width: 100%;
    justify-content: space-between;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--color-white);
    font-size: 1.5rem;
    cursor: pointer;
}

.mobile-menu {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-black);
    padding: var(--spacing-lg);
    z-index: 999;
}

.mobile-menu.active {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.mobile-menu a {
    color: var(--color-white);
    padding: var(--spacing-md);
}

/* ==================== COURSE CARDS ==================== */
.courses-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: var(--spacing-xl);
}

.course-card {
    background: var(--color-white);
    border: none;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    position: relative;
}

.course-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--color-primary), var(--color-primary-dark));
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.course-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
}

.course-card:hover::before {
    transform: scaleX(1);
}

.course-image {
    height: 180px;
    background: linear-gradient(135deg, var(--color-black) 0%, var(--color-gray-800) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 5rem;
    position: relative;
    overflow: hidden;
}

.course-image::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: linear-gradient(to top, rgba(0,0,0,0.3), transparent);
}

.course-info {
    padding: var(--spacing-lg);
}

.course-icon {
    font-size: 3.5rem;
    margin-bottom: var(--spacing-md);
    display: inline-block;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
}

.course-badges {
    margin-bottom: var(--spacing-md);
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.badge-basico {
    background: linear-gradient(135deg, #28A745, #20c997);
    color: var(--color-white);
    font-weight: 600;
}

.badge-intermedio {
    background: linear-gradient(135deg, #FFC107, #fd7e14);
    color: var(--color-black);
    font-weight: 600;
}

.badge-avanzado {
    background: linear-gradient(135deg, #DC3545, #e83e8c);
    color: var(--color-white);
    font-weight: 600;
}

.badge-error {
    background-color: var(--color-error);
    color: var(--color-white);
}

.badge-warning {
    background-color: var(--color-warning);
    color: var(--color-black);
}

.course-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-black);
    margin-bottom: var(--spacing-sm);
    line-height: 1.3;
}

.course-description {
    color: var(--color-gray-600);
    font-size: 0.9rem;
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.course-meta {
    display: flex;
    gap: var(--spacing-lg);
    font-size: 0.85rem;
    color: var(--color-gray-500);
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    background: var(--color-gray-100);
    border-radius: var(--border-radius);
}

.course-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.course-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--color-gray-200);
}

.course-price {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--color-black);
}

.course-price .free {
    color: var(--color-success);
    background: linear-gradient(135deg, #28A745, #20c997);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.course-card .btn-outline {
    border-width: 2px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.course-card .btn-outline:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-black);
    transform: scale(1.02);
}

/* Courses section */
.courses-section {
    padding: var(--spacing-2xl) 0;
}

/* Course card hover animation for icon */
.course-card:hover .course-image {
    transform: scale(1.02);
}

.course-image {
    transition: transform 0.3s ease;
}

/* ==================== PAGE HEADER ==================== */
.page-header {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    text-align: center;
    margin-top: calc(-1 * var(--header-height));
    padding-top: calc(var(--header-height) + var(--spacing-xl));
}

.page-header h1 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.page-header p {
    color: var(--color-gray-400);
    margin: 0;
}

/* ==================== FILTERS ==================== */
.filters-section {
    padding: var(--spacing-lg) 0;
    background: var(--color-gray-100);
}

.filters-form {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    align-items: center;
}

.filter-group {
    flex: 1;
    min-width: 200px;
}

.courses-count {
    margin-bottom: var(--spacing-lg);
    color: var(--color-gray-600);
}

/* ==================== COURSE DETAIL ==================== */
.course-detail-header {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--spacing-xl) 0;
    margin-top: calc(-1 * var(--header-height));
    padding-top: calc(var(--header-height) + var(--spacing-xl));
}

.course-detail-grid {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: var(--spacing-xl);
}

.breadcrumb {
    display: flex;
    gap: var(--spacing-sm);
    color: var(--color-gray-400);
    margin-bottom: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.breadcrumb a {
    color: var(--color-primary);
}

.course-icon-large {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.course-detail-header h1 {
    color: var(--color-white);
    font-size: var(--font-size-3xl);
}

.course-detail-description {
    color: var(--color-gray-300);
    margin-bottom: var(--spacing-lg);
}

.course-detail-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-lg);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-gray-300);
}

.meta-icon {
    font-size: 1.2rem;
}

/* Sidebar Buy Card */
.course-card-buy {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    color: var(--color-black);
}

.course-price-large {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    text-align: center;
}

.enrolled-text {
    text-align: center;
    color: var(--color-success);
    margin-top: var(--spacing-md);
}

.login-link {
    text-align: center;
    margin-top: var(--spacing-md);
    font-size: var(--font-size-sm);
}

.course-includes {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
}

.course-includes h4 {
    margin-bottom: var(--spacing-md);
}

.course-includes ul {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.course-includes li {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-gray-700);
}

/* ==================== MODULES ACCORDION ==================== */
.course-content-section {
    padding: var(--spacing-2xl) 0;
}

.content-summary {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
}

.modules-accordion {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.module-item {
    border: 2px solid var(--color-gray-200);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.module-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--color-gray-100);
    cursor: pointer;
    transition: var(--transition);
}

.module-header:hover {
    background: var(--color-gray-200);
}

.module-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-weight: 600;
}

.module-icon {
    font-size: 1.2rem;
}

.module-number {
    color: var(--color-gray-600);
}

.module-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

.toggle-icon {
    transition: var(--transition);
}

.module-content {
    display: none;
    padding: var(--spacing-lg);
    background: var(--color-white);
}

.module-content.active {
    display: block;
}

.module-description {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

.sessions-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.session-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-gray-100);
    border-radius: var(--border-radius);
}

.session-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.session-icon {
    font-size: 1.2rem;
}

.session-title {
    font-weight: 500;
}

.session-meta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--color-gray-500);
    font-size: var(--font-size-sm);
}

.session-locked {
    color: var(--color-gray-400);
}

/* ==================== DASHBOARD LAYOUT ==================== */
.dashboard-sidebar {
    width: 280px;
    background: var(--color-black);
    min-height: calc(100vh - var(--header-height));
    padding: var(--spacing-xl);
    flex-shrink: 0;
}

.dashboard-content {
    flex: 1;
    padding: var(--spacing-xl);
    background: var(--color-gray-100);
    min-height: calc(100vh - var(--header-height));
}

.user-info {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-gray-800);
}

.user-avatar {
    width: 80px;
    height: 80px;
    background: var(--color-primary);
    color: var(--color-black);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 700;
    margin: 0 auto var(--spacing-md);
}

.user-info h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.user-info p {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
    margin: 0;
}

.nav-icon {
    font-size: 1.2rem;
}

/* ==================== STATS GRID ==================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stats-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.stat-card {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.stat-icon {
    font-size: 2.5rem;
}

.stat-content h3 {
    font-size: var(--font-size-2xl);
    margin-bottom: 0;
}

.stat-content p {
    color: var(--color-gray-600);
    margin: 0;
    font-size: var(--font-size-sm);
}

/* ==================== DASHBOARD SECTIONS ==================== */
.dashboard-header {
    margin-bottom: var(--spacing-xl);
}

.dashboard-header h1 {
    margin-bottom: var(--spacing-xs);
}

.dashboard-header p {
    margin: 0;
}

.dashboard-section {
    margin-bottom: var(--spacing-xl);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.section-header h2 {
    margin: 0;
}

/* ==================== PROGRESS BAR ==================== */
.progress-bar {
    height: 8px;
    background: var(--color-gray-200);
    border-radius: var(--border-radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: var(--border-radius-full);
    transition: width 0.5s ease;
}

.progress-info {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* ==================== COURSE CARD WITH PROGRESS ==================== */
.course-card-progress {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.course-card-progress .course-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.course-card-progress h3 {
    margin-bottom: var(--spacing-sm);
}

/* ==================== EMPTY STATE ==================== */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
}

.empty-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

.empty-state h3 {
    margin-bottom: var(--spacing-sm);
}

.empty-state p {
    margin-bottom: var(--spacing-lg);
}

/* ==================== COURSE LIST ITEM ==================== */
.courses-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.course-list-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-lg);
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
}

.course-icon-wrapper {
    flex-shrink: 0;
}

.course-icon-wrapper .course-icon {
    font-size: 3rem;
}

.course-list-item .course-info {
    flex: 1;
}

.course-header-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
}

.course-header-info h3 {
    margin: 0;
}

.course-actions {
    flex-shrink: 0;
}

/* ==================== TABS ==================== */
.tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.tab {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--color-white);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: var(--transition);
    font-weight: 500;
}

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

.tab.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-black);
}

/* ==================== VIDEO PLAYER PAGE ==================== */
.player-page {
    background: var(--color-gray-900);
}

.header-player {
    background: var(--color-black);
    padding: var(--spacing-md) var(--spacing-lg);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
}

.header-player-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1600px;
    margin: 0 auto;
}

.back-btn {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
}

.back-btn:hover {
    color: var(--color-white);
}

.course-title-player {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-white);
    font-weight: 600;
}

.course-icon-sm {
    font-size: 1.5rem;
}

.progress-mini {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
}

.progress-bar-mini {
    width: 100px;
    height: 6px;
    background: var(--color-gray-700);
    border-radius: var(--border-radius-full);
    overflow: hidden;
}

/* ==================== PLAYER LAYOUT ==================== */
.player-layout {
    display: flex;
    min-height: 100vh;
    padding-top: 60px;
}

.player-main {
    flex: 1;
    padding: var(--spacing-lg);
}

.player-sidebar {
    width: 350px;
    background: var(--color-black);
    overflow-y: auto;
    max-height: calc(100vh - 60px);
    position: sticky;
    top: 60px;
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-800);
}

.sidebar-header h3 {
    color: var(--color-white);
    margin-bottom: var(--spacing-xs);
}

.progress-text {
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
}

/* ==================== VIDEO CONTAINER ==================== */
.video-container {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    background: var(--color-black);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    margin-bottom: var(--spacing-lg);
}

.video-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--color-gray-400);
}

.placeholder-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
}

/* ==================== SESSION INFO ==================== */
.session-info {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
}

.session-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: var(--spacing-lg);
}

.session-header h1 {
    margin: 0;
}

.session-description {
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-200);
}

.session-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.navigation-btns {
    display: flex;
    gap: var(--spacing-sm);
}

.inline-form {
    display: inline;
}

/* ==================== MODULES LIST (Player Sidebar) ==================== */
.modules-list {
    padding: var(--spacing-md);
}

.module-group {
    margin-bottom: var(--spacing-lg);
}

.module-group-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm);
    color: var(--color-gray-400);
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.module-count {
    background: var(--color-gray-800);
    padding: 2px 8px;
    border-radius: var(--border-radius-full);
}

.sessions-nav {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.session-nav-item a {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    color: var(--color-gray-300);
    border-radius: var(--border-radius);
    transition: var(--transition);
}

.session-nav-item a:hover {
    background: var(--color-gray-800);
    color: var(--color-white);
}

.session-nav-item.active a {
    background: var(--color-primary);
    color: var(--color-black);
}

.session-nav-item .session-status {
    font-size: 1rem;
}

.session-nav-item .session-title {
    flex: 1;
    font-size: var(--font-size-sm);
}

.session-nav-item .session-duration {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

.session-nav-item.active .session-duration {
    color: var(--color-gray-700);
}

/* ==================== ALERT FLOATING ==================== */
.alert-floating {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 1001;
    min-width: 300px;
    text-align: center;
    transition: opacity 0.3s ease;
}

/* ==================== PROFILE PAGE ==================== */
.profile-sections {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.profile-section {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
}

.profile-section h2 {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--color-gray-200);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-lg);
}

.account-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-md);
    background: var(--color-gray-100);
    border-radius: var(--border-radius);
}

.info-label {
    color: var(--color-gray-600);
}

.info-value {
    font-weight: 600;
}

/* ==================== PASSWORD STRENGTH ==================== */
.password-strength {
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.password-strength.weak {
    color: var(--color-error);
}

.password-strength.medium {
    color: var(--color-warning);
}

.password-strength.strong {
    color: var(--color-success);
}

.password-match {
    font-size: var(--font-size-sm);
    margin-top: var(--spacing-xs);
}

.password-match.success {
    color: var(--color-success);
}

.password-match.error {
    color: var(--color-error);
}

/* ==================== ERROR TEXT ==================== */
.error-text {
    color: var(--color-error);
    font-size: var(--font-size-sm);
    display: block;
    margin-top: var(--spacing-xs);
}

.required {
    color: var(--color-error);
}

.optional {
    color: var(--color-gray-500);
    font-weight: 400;
}

/* ==================== ADMIN PANEL ==================== */
.header-admin {
    border-bottom: 3px solid var(--color-primary);
}

.header-admin .logo small {
    color: var(--color-primary);
    font-size: var(--font-size-sm);
    margin-left: var(--spacing-sm);
}

.admin-sidebar .user-avatar {
    background: var(--color-primary);
}

.admin-avatar {
    font-size: 2rem;
}

.admin-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-xl);
}

.admin-section {
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.admin-section h2 {
    margin-bottom: var(--spacing-lg);
}

/* ==================== ADMIN TABLE ==================== */
.table-container {
    overflow-x: auto;
}

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

.admin-table th,
.admin-table td {
    padding: var(--spacing-md);
    text-align: left;
    border-bottom: 1px solid var(--color-gray-200);
}

.admin-table th {
    background: var(--color-gray-100);
    font-weight: 600;
    color: var(--color-gray-700);
    font-size: var(--font-size-sm);
    text-transform: uppercase;
}

.admin-table tr:hover {
    background: var(--color-gray-50);
}

.course-cell {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.action-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.btn-danger {
    background: var(--color-error);
    color: var(--color-white);
    border-color: var(--color-error);
}

.btn-danger:hover {
    background: #c82333;
}

/* ==================== POPULAR COURSES (Admin) ==================== */
.popular-courses {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.popular-course-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: var(--color-gray-100);
    border-radius: var(--border-radius);
}

.popular-course-item .course-icon {
    font-size: 2rem;
    margin: 0;
}

.popular-course-item .course-info {
    display: flex;
    flex-direction: column;
}

.popular-course-item small {
    color: var(--color-gray-600);
}

/* ==================== ADMIN FORM ==================== */
.admin-form {
    max-width: 800px;
}

.back-link {
    display: inline-block;
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-600);
}

.back-link:hover {
    color: var(--color-black);
}

.results-count {
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-600);
}

.form-control-sm {
    padding: var(--spacing-sm);
    font-size: var(--font-size-sm);
}

/* ==================== MODULE CARD (Admin) ==================== */
.module-card {
    border: 2px solid var(--color-gray-200);
    border-radius: var(--border-radius-lg);
    margin-bottom: var(--spacing-lg);
    overflow: hidden;
}

.module-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--color-gray-100);
}

.module-card-header h3 {
    margin: 0;
}

.sessions-list-admin {
    padding: var(--spacing-md);
}

.session-item-admin {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md);
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--border-radius);
    margin-bottom: var(--spacing-sm);
}

.session-info-admin {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.session-type {
    font-size: 1.2rem;
}

.add-session-form {
    padding: var(--spacing-lg);
    background: var(--color-gray-50);
    border-top: 1px solid var(--color-gray-200);
}

.add-session-form .form-row {
    display: flex;
    gap: var(--spacing-sm);
    align-items: center;
}

.add-session-form .form-control {
    flex: 1;
}

.add-module-form {
    background: var(--color-gray-100);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-xl);
}

.add-module-form h3 {
    margin-bottom: var(--spacing-md);
}

.add-module-form .form-row {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
}

/* ==================== FOOTER ==================== */
.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--color-gray-800);
}

.footer-brand .logo {
    display: inline-block;
    margin-bottom: var(--spacing-md);
}

.footer-brand p {
    color: var(--color-gray-400);
    max-width: 300px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.footer-links h4 {
    color: var(--color-white);
    margin-bottom: var(--spacing-sm);
}

.footer-links a {
    color: var(--color-gray-400);
}

.footer-links a:hover {
    color: var(--color-primary);
}

.footer-bottom {
    text-align: center;
}

/* ==================== RESPONSIVE UPDATES ==================== */
@media (max-width: 992px) {
    .course-detail-grid {
        grid-template-columns: 1fr;
    }

    .course-detail-sidebar {
        order: -1;
    }

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

    .stats-grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .player-sidebar {
        display: none;
    }

    .player-main {
        padding: var(--spacing-md);
    }

    .dashboard-sidebar {
        display: none;
    }

    .dashboard-content {
        padding: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    .mobile-menu-btn {
        display: block;
    }

    .nav-links {
        display: none;
    }

    .course-list-item {
        flex-direction: column;
        text-align: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .stats-grid,
    .stats-grid-4 {
        grid-template-columns: 1fr;
    }

    .filters-form {
        flex-direction: column;
    }

    .filter-group {
        width: 100%;
    }

    .session-actions {
        flex-direction: column;
    }

    .navigation-btns {
        width: 100%;
        justify-content: space-between;
    }

    .footer-content {
        flex-direction: column;
        text-align: center;
    }

    .footer-brand p {
        max-width: none;
    }
}

/* ==================== CHECKOUT STYLES ==================== */

.checkout-section {
    padding: var(--spacing-3xl) 0;
    min-height: 70vh;
}

.checkout-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

.checkout-summary,
.checkout-payment {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-md);
}

.checkout-summary h2,
.checkout-payment h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 2px solid var(--color-gray-200);
}

/* Order Item */
.order-item {
    display: flex;
    gap: var(--spacing-lg);
    padding: var(--spacing-lg);
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
}

.order-item-icon {
    font-size: 3rem;
    background: var(--color-primary);
    padding: var(--spacing-md);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
}

.order-item-info h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-xs);
}

.order-item-info p {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    margin-bottom: var(--spacing-xs);
}

/* Order Details */
.order-details {
    border-top: 1px solid var(--color-gray-200);
    padding-top: var(--spacing-lg);
}

.order-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    color: var(--color-gray-700);
}

.order-row.total {
    border-top: 2px solid var(--color-gray-300);
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    font-weight: 600;
    font-size: var(--font-size-lg);
}

.total-price {
    color: var(--color-primary-dark);
    font-size: var(--font-size-xl);
}

/* Payment Methods */
.payment-methods {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.payment-method {
    border: 2px solid var(--color-gray-300);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.payment-method:hover {
    border-color: var(--color-primary);
}

.payment-method.active {
    border-color: var(--color-primary);
    background: rgba(255, 215, 0, 0.1);
}

.payment-method input[type="radio"] {
    display: none;
}

.payment-method label {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    cursor: pointer;
    width: 100%;
}

.payment-icon {
    font-size: 1.5rem;
    width: 40px;
    text-align: center;
}

.payment-name {
    font-weight: 600;
    flex: 1;
}

.payment-cards {
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

/* Buyer Info */
.buyer-info {
    margin-bottom: var(--spacing-xl);
}

.buyer-info h3 {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-md);
    color: var(--color-gray-700);
}

/* Payment Security */
.payment-security {
    text-align: center;
    padding: var(--spacing-md);
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xs);
    margin: var(--spacing-md) 0;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    color: white;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 215, 0, 0.3);
    border-top-color: var(--color-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: var(--spacing-md);
}

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

/* ==================== SUCCESS PAGE STYLES ==================== */

.success-section {
    padding: var(--spacing-3xl) 0;
    min-height: 70vh;
    display: flex;
    align-items: center;
}

.success-card {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--spacing-3xl);
    box-shadow: var(--shadow-lg);
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.success-icon {
    width: 80px;
    height: 80px;
    background: var(--color-success);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    margin: 0 auto var(--spacing-lg);
}

.success-card h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--spacing-sm);
}

.success-message {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
}

.success-details {
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.success-course {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-300);
}

.success-course .course-icon {
    font-size: 2.5rem;
}

.success-course h2 {
    font-size: var(--font-size-lg);
    margin: 0;
}

.payment-receipt {
    text-align: left;
}

.receipt-row {
    display: flex;
    justify-content: space-between;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-gray-200);
}

.receipt-row:last-child {
    border-bottom: none;
}

.transaction-id {
    font-family: monospace;
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
}

.success-actions {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.success-note {
    margin-top: var(--spacing-lg);
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
}

/* Responsive Checkout */
@media (max-width: 768px) {
    .checkout-grid {
        grid-template-columns: 1fr;
    }

    .checkout-summary {
        order: 2;
    }

    .checkout-payment {
        order: 1;
    }

    .order-item {
        flex-direction: column;
        text-align: center;
    }

    .payment-method label {
        flex-wrap: wrap;
    }

    .payment-cards {
        width: 100%;
        margin-top: var(--spacing-xs);
    }

    .success-card {
        padding: var(--spacing-xl);
    }

    .success-course {
        flex-direction: column;
    }
}

/* ==================== ERROR & PENDING STATES ==================== */

.error-icon {
    background: var(--color-error) !important;
}

.pending-icon {
    background: var(--color-warning) !important;
    color: var(--color-black) !important;
}

.error-reasons {
    text-align: left;
    margin-top: var(--spacing-lg);
}

.error-reasons p {
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.error-reasons ul {
    list-style: disc;
    padding-left: var(--spacing-xl);
}

.error-reasons li {
    padding: var(--spacing-xs) 0;
    color: var(--color-gray-700);
}

.pending-info {
    text-align: left;
    margin-top: var(--spacing-lg);
    padding: var(--spacing-md);
    background: rgba(255, 193, 7, 0.1);
    border-radius: var(--radius-md);
    border-left: 4px solid var(--color-warning);
}

.pending-info p {
    margin-bottom: var(--spacing-sm);
}

.pending-info p:last-child {
    margin-bottom: 0;
}

.status-pending {
    color: var(--color-warning);
}

/* Payment Info Box */
.payment-info-box {
    background: var(--color-gray-100);
    border-radius: var(--radius-md);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    text-align: center;
}

.payment-logo {
    margin-bottom: var(--spacing-md);
}

.payment-info-box p {
    color: var(--color-gray-700);
    margin-bottom: var(--spacing-md);
}

.payment-features {
    list-style: none;
    padding: 0;
    text-align: left;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-sm);
}

.payment-features li {
    padding: var(--spacing-xs);
    color: var(--color-gray-700);
    font-size: var(--font-size-sm);
}

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

/* ==================== MODAL STYLES ==================== */

.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--spacing-md);
}

.modal-content {
    background: var(--color-white);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-200);
}

.modal-header h3 {
    margin: 0;
    font-size: var(--font-size-lg);
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--color-gray-600);
    padding: 0;
    line-height: 1;
}

.modal-close:hover {
    color: var(--color-black);
}

.modal-body {
    padding: var(--spacing-lg);
}

.modal-body .form-group {
    margin-bottom: var(--spacing-md);
}

.modal-body .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg);
    border-top: 1px solid var(--color-gray-200);
    background: var(--color-gray-100);
}

/* Module actions alignment */
.module-actions {
    display: flex;
    gap: var(--spacing-xs);
}

@media (max-width: 480px) {
    .modal-body .form-row {
        grid-template-columns: 1fr;
    }

    .modal-footer {
        flex-direction: column;
    }

    .modal-footer .btn {
        width: 100%;
    }
}

/* ==================== CHECKOUT MANUAL PAYMENT STYLES ==================== */

/* Payment Accordion */
.payment-accordion {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.payment-accordion-item {
    border: 2px solid var(--color-gray-200);
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    transition: var(--transition);
}

.payment-accordion-item:hover {
    border-color: var(--color-primary);
}

.payment-accordion-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: var(--color-gray-100);
    cursor: pointer;
    transition: var(--transition);
}

.payment-accordion-header:hover {
    background: var(--color-gray-200);
}

.payment-method-title {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    font-weight: 600;
}

.payment-method-title .payment-icon {
    font-size: 1.5rem;
}

.accordion-arrow {
    color: var(--color-gray-500);
    transition: var(--transition);
}

.payment-accordion-content {
    display: none;
    padding: var(--spacing-xl);
    background: var(--color-white);
    border-top: 1px solid var(--color-gray-200);
}

.payment-accordion-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

/* Yape QR */
.yape-qr-container {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.yape-qr-image {
    max-width: 200px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    margin-bottom: var(--spacing-md);
}

.yape-titular {
    font-size: var(--font-size-base);
    margin-bottom: var(--spacing-sm);
}

.yape-instructions {
    color: var(--color-gray-600);
    font-size: var(--font-size-sm);
}

/* Bank Details */
.bank-details {
    background: var(--color-gray-100);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.bank-info-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-sm) 0;
    border-bottom: 1px solid var(--color-gray-200);
    flex-wrap: wrap;
    gap: var(--spacing-sm);
}

.bank-info-row:last-child {
    border-bottom: none;
}

.bank-label {
    color: var(--color-gray-600);
    font-weight: 500;
}

.bank-value {
    font-weight: 600;
}

.account-number {
    font-family: monospace;
    font-size: var(--font-size-lg);
    background: var(--color-white);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
}

.btn-copy {
    background: var(--color-primary);
    color: var(--color-black);
    border: none;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--border-radius);
    cursor: pointer;
    font-size: var(--font-size-sm);
    font-weight: 600;
    transition: var(--transition);
}

.btn-copy:hover {
    background: var(--color-primary-dark);
}

/* PayPal Details */
.paypal-details {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.paypal-email {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    background: var(--color-gray-100);
    padding: var(--spacing-md);
    border-radius: var(--border-radius);
    font-family: monospace;
    font-size: var(--font-size-lg);
    margin: var(--spacing-md) 0;
}

.paypal-amount {
    font-size: var(--font-size-lg);
    margin-bottom: var(--spacing-md);
}

/* Checkout Instructions */
.checkout-instructions {
    background: var(--color-gray-100);
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.checkout-instructions h3 {
    margin-bottom: var(--spacing-md);
}

.checkout-instructions ol {
    list-style: decimal;
    padding-left: var(--spacing-xl);
}

.checkout-instructions li {
    padding: var(--spacing-xs) 0;
    color: var(--color-gray-700);
}

/* WhatsApp Contact */
.checkout-contact {
    text-align: center;
    margin-bottom: var(--spacing-lg);
}

.btn-success {
    background: #25D366;
    color: white;
    border-color: #25D366;
}

.btn-success:hover {
    background: #20bd5a;
    border-color: #20bd5a;
    color: white;
}

/* Checkout Pending State */
.checkout-pending {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
    background: var(--color-white);
    border-radius: var(--border-radius-lg);
    padding: var(--spacing-2xl);
    box-shadow: var(--shadow-lg);
}

.checkout-pending .pending-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    display: block;
}

.checkout-pending h1 {
    margin-bottom: var(--spacing-sm);
}

.checkout-pending > p {
    color: var(--color-gray-600);
    margin-bottom: var(--spacing-xl);
}

.pending-details {
    background: var(--color-gray-100);
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
}

.pending-course {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    padding-bottom: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--color-gray-300);
}

.pending-course .course-icon {
    font-size: 2.5rem;
}

.pending-course h2 {
    margin: 0;
    font-size: var(--font-size-lg);
}

.pending-info p {
    margin-bottom: var(--spacing-xs);
    color: var(--color-gray-700);
}

.pending-message {
    background: #FFF3CD;
    border: 1px solid #FFEEBA;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.pending-message p {
    margin-bottom: var(--spacing-md);
    color: #856404;
}

/* ==================== ADMIN PAYMENT VALIDATION STYLES ==================== */

/* Pending Alert */
.pending-alert {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.pending-alert-content {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.pending-alert .pending-icon {
    font-size: 2rem;
}

.pending-alert-content div p {
    margin: 0;
    font-size: var(--font-size-sm);
}

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

.btn-warning:hover {
    background: #e0a800;
    border-color: #e0a800;
}

/* Pending Row Highlight */
.row-pending {
    background: rgba(255, 193, 7, 0.1) !important;
}

.row-pending:hover {
    background: rgba(255, 193, 7, 0.15) !important;
}

/* Protected User Row */
.row-principal {
    background: rgba(255, 215, 0, 0.05);
}

.row-principal:hover {
    background: rgba(255, 215, 0, 0.1) !important;
}

/* Action Buttons in Tables */
.action-buttons {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: wrap;
}

.action-buttons .btn-sm {
    white-space: nowrap;
}

/* Course Icon Small */
.course-icon-sm {
    font-size: 1.5rem;
}

/* Button Danger Outline */
.btn-outline.btn-danger {
    border-color: var(--color-error);
    color: var(--color-error);
}

.btn-outline.btn-danger:hover {
    background: var(--color-error);
    color: white;
}

/* Responsive for mobile */
@media (max-width: 768px) {
    .payment-accordion-header {
        padding: var(--spacing-md);
    }

    .payment-accordion-content {
        padding: var(--spacing-md);
    }

    .bank-info-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .pending-alert {
        flex-direction: column;
        text-align: center;
    }

    .pending-alert-content {
        flex-direction: column;
    }

    .pending-course {
        flex-direction: column;
    }

    .action-buttons {
        flex-direction: column;
    }

    .action-buttons .btn {
        width: 100%;
    }
}

/* ==================== COMING SOON / PROXIMAMENTE STYLES ==================== */

/* Coming Soon Ribbon */
.course-coming-soon {
    position: relative;
    overflow: hidden;
}

.coming-soon-ribbon {
    position: absolute;
    top: 20px;
    right: -35px;
    background: linear-gradient(135deg, #FF6B35, #F7931E);
    color: white;
    padding: 8px 40px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    transform: rotate(45deg);
    z-index: 10;
    box-shadow: 0 2px 10px rgba(255, 107, 53, 0.4);
    letter-spacing: 1px;
}

/* Coming Soon Badge */
.badge-coming-soon {
    background: linear-gradient(135deg, #FF6B35, #F7931E);
    color: white;
    font-weight: 600;
}

/* Coming Soon Text in Footer */
.coming-soon-text {
    color: #FF6B35 !important;
    font-weight: 600;
}

/* Disabled Button */
.btn-disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* Coming Soon Card in Course Detail */
.coming-soon-card {
    border: 2px dashed #FF6B35;
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.05), rgba(247, 147, 30, 0.05));
}

.coming-soon-box {
    text-align: center;
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 107, 53, 0.1), rgba(247, 147, 30, 0.1));
    border-radius: var(--border-radius-lg);
}

.coming-soon-box .coming-soon-icon {
    font-size: 3rem;
    display: block;
    margin-bottom: var(--spacing-md);
}

.coming-soon-box h3 {
    color: #FF6B35;
    margin-bottom: var(--spacing-sm);
}

.coming-soon-box p {
    color: var(--color-gray-600);
    margin: 0;
    font-size: var(--font-size-sm);
}

/* Course Card Coming Soon Effect */
.course-card.course-coming-soon::before {
    background: linear-gradient(90deg, #FF6B35, #F7931E);
}

.course-card.course-coming-soon .course-image {
    position: relative;
}

.course-card.course-coming-soon .course-image::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.3);
    z-index: 1;
}

/* Responsive */
@media (max-width: 768px) {
    .coming-soon-ribbon {
        top: 15px;
        right: -40px;
        font-size: 0.65rem;
        padding: 6px 35px;
    }

    .coming-soon-box {
        padding: var(--spacing-lg);
    }

    .coming-soon-box .coming-soon-icon {
        font-size: 2.5rem;
    }
}

/* ==================== HERO BUTTONS ==================== */
.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
    margin-top: var(--spacing-lg);
}

.hero-buttons .btn {
    min-width: 200px;
}