/* Modern Video Management System - Shared Styles */

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

/* CSS Variables for consistent theming */
:root {
    --primary-gradient: linear-gradient(135deg, #2563eb 0%, #3b82f6 50%, #60a5fa 100%);
    --accent-color: #2563eb;
    --accent-hover: #1d4ed8;
    --background-light: #f8fafc;
    --background-main: #ffffff;
    --background-sidebar: #f1f5f9;
    --glass-bg: rgba(255, 255, 255, 0.8);
    --glass-border: rgba(226, 232, 240, 0.8);
    --glass-bg-light: rgba(255, 255, 255, 0.95);
    --glass-border-light: rgba(226, 232, 240, 0.6);
    --text-primary: #1e293b;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --text-dark: #0f172a;
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --shadow-sm: 0 1px 3px 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-xl: 0 20px 25px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
}

/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--background-light);
    color: var(--text-primary);
    overflow-x: hidden;
    min-height: 100vh;
    position: relative;
    line-height: 1.6;
    margin: 0;
    padding: 0;
}

/* Clean light background */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        radial-gradient(circle at 20% 80%, rgba(37, 99, 235, 0.02) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(16, 185, 129, 0.02) 0%, transparent 50%);
    z-index: -1;
}

/* Login Screen Styles */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    position: relative;
}

.login-card {
    background: var(--glass-bg-light);
    backdrop-filter: blur(24px);
    border: 1px solid var(--glass-border-light);
    border-radius: var(--border-radius-lg);
    padding: 48px 40px;
    box-shadow: var(--shadow-xl);
    max-width: 420px;
    width: 100%;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
}

.login-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-title {
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 8px;
    background: linear-gradient(135deg, #ffffff 0%, rgba(255, 255, 255, 0.8) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.login-subtitle {
    font-size: 16px;
    color: var(--text-muted);
    margin-bottom: 40px;
    font-weight: 400;
}

.login-form {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.input-group {
    position: relative;
}

.input-icon {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 18px;
    z-index: 1;
}

.login-input {
    width: 100%;
    padding: 16px 16px 16px 48px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 16px;
    font-weight: 400;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.login-input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 3px rgba(156, 39, 176, 0.1);
}

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

.login-button {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-hover) 100%);
    color: white;
    border: none;
    padding: 16px 32px;
    border-radius: var(--border-radius-sm);
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.login-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
}

.login-button:hover::before {
    left: 100%;
}

.login-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(52, 152, 219, 0.4);
}

.login-button:active {
    transform: translateY(0);
}

.error-message {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
    padding: 12px 16px;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    font-weight: 500;
    text-align: center;
    margin-top: 16px;
}

/* Sidebar Styles */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 280px;
    height: 100vh;
    background: var(--background-sidebar);
    border-right: 1px solid var(--glass-border);
    z-index: 1000;
    transition: var(--transition);
    transform: translateX(0);
    opacity: 1;
    box-shadow: var(--shadow-md);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.sidebar.visible {
    transform: translateX(0);
    opacity: 1;
}

.sidebar-header {
    padding: 32px 24px 24px;
    border-bottom: 1px solid var(--glass-border);
    text-align: center;
    background: var(--background-main);
    position: relative;
    flex-shrink: 0;
}

.sidebar-logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--accent-color);
    margin-bottom: 0;
    text-align: center;
}

.sidebar-menu {
    list-style: none;
    padding: 24px 0;
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    scrollbar-width: thin;
    scrollbar-color: var(--text-light) transparent;
}

.sidebar-menu::-webkit-scrollbar {
    width: 4px;
}

.sidebar-menu::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-menu::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 2px;
}

.sidebar-menu::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

.sidebar-menu li {
    margin: 0;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    padding: 16px 24px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
    margin: 4px 16px;
    border-radius: var(--border-radius-sm);
}

.sidebar-menu a:hover {
    background: var(--background-main);
    color: var(--text-primary);
    box-shadow: var(--shadow-sm);
}

.sidebar-menu a.active {
    background: var(--accent-color);
    color: white;
    box-shadow: var(--shadow-md);
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--glass-border);
    background: var(--background-main);
    flex-shrink: 0;
}

.sidebar-footer .sidebar-menu {
    padding: 0;
    flex: none;
    overflow: visible;
}

/* Top Navbar */
.top-navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 70px;
    background: var(--background-main);
    border-bottom: 1px solid var(--glass-border);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding: 0 32px;
    transform: translateY(-100%);
    opacity: 0;
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.top-navbar.with-sidebar {
    left: 280px;
}

.top-navbar.visible {
    transform: translateY(0);
    opacity: 1;
}

.navbar-left {
    display: flex;
    align-items: center;
    gap: 16px;
}

.navbar-title {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.navbar-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 8px 16px;
    background: var(--background-sidebar);
    border-radius: var(--border-radius-sm);
    border: 1px solid var(--glass-border);
    position: relative;
    cursor: pointer;
}

.user-info:hover {
    background: var(--background-main);
    box-shadow: var(--shadow-sm);
}

.user-dropdown {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--background-main);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    box-shadow: var(--shadow-md);
    min-width: 150px;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition);
}

.user-info:hover .user-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.user-dropdown a {
    display: block;
    padding: 12px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 14px;
    transition: var(--transition);
}

.user-dropdown a:hover {
    background: var(--background-sidebar);
    color: var(--text-primary);
}

.user-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 14px;
}

.user-name {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-primary);
}

/* Main Content */
.main-content {
    margin-left: 0;
    padding: 90px 32px 32px;
    min-height: 100vh;
    transition: var(--transition);
    position: relative;
    z-index: 1;
    scroll-behavior: smooth;
    overflow-y: auto;
    overflow-x: hidden;
    height: 100vh;
}

.main-content.with-sidebar {
    margin-left: 280px;
}

.main-content.with-navbar {
    padding-top: 90px;
}

.main-content.with-sidebar.with-navbar {
    margin-left: 280px;
    padding-top: 90px;
}

/* Custom scrollbar for main content */
.main-content::-webkit-scrollbar {
    width: 8px;
}

.main-content::-webkit-scrollbar-track {
    background: var(--background-sidebar);
    border-radius: 4px;
}

.main-content::-webkit-scrollbar-thumb {
    background: var(--text-light);
    border-radius: 4px;
}

.main-content::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Content Wrapper */
.content-wrapper {
    background: var(--background-main);
    border-radius: var(--border-radius-lg);
    padding: 32px;
    margin: 20px 0;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow-md);
    position: relative;
    z-index: 3;
    min-height: calc(100vh - 200px);
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.dashboard-item {
    background: var(--background-main);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius);
    padding: 24px;
    transition: var(--transition);
    position: relative;
}

.dashboard-item:hover {
    border-color: var(--accent-color);
    box-shadow: var(--shadow-md);
}

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

.item-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

/* Table Styles */
.video-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--background-main);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.video-table th {
    background: var(--background-sidebar);
    color: var(--text-primary);
    font-weight: 600;
    padding: 16px;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
}

.video-table td {
    padding: 16px;
    border-bottom: 1px solid var(--glass-border);
    color: var(--text-secondary);
}

.video-table tr:hover {
    background: var(--background-sidebar);
}

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

.video-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.card-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--border-radius-sm);
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
}

.card-content {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 24px;
    border: none;
    border-radius: var(--border-radius-sm);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

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

.btn-secondary:hover {
    background: var(--background-sidebar);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

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

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Form Elements */
.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-input {
    width: 100%;
    padding: 16px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--border-radius-sm);
    color: var(--text-primary);
    font-size: 16px;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-color);
    background: rgba(255, 255, 255, 0.1);
    box-shadow: 0 0 0 3px rgba(156, 39, 176, 0.1);
}

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

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 2;
}

.page-header {
    margin-bottom: 32px;
}

.page-title {
    font-size: 32px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.page-subtitle {
    font-size: 16px;
    color: var(--text-muted);
    font-weight: 400;
}

/* Success/Error Messages */
.alert {
    padding: 16px 20px;
    border-radius: var(--border-radius-sm);
    margin-bottom: 24px;
    font-weight: 500;
    border: 1px solid;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border-color: rgba(34, 197, 94, 0.3);
    color: #86efac;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border-color: rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .sidebar {
        width: 260px;
    }
    
    .main-content.with-sidebar {
        margin-left: 260px;
    }
    
    .dashboard-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        transform: translateX(-100%);
    }
    
    .sidebar.visible {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: 90px 20px 20px;
    }
    
    .main-content.with-sidebar {
        margin-left: 0;
    }
    
    .main-content.with-sidebar.with-navbar {
        margin-left: 0;
        padding-top: 90px;
    }
    
    .top-navbar {
        padding: 0 20px;
        left: 0 !important;
    }
    
    .top-navbar.with-sidebar {
        left: 0 !important;
    }
    
    .navbar-title {
        font-size: 18px;
    }
    
    .user-info {
        padding: 6px 12px;
    }
    
    .user-name {
        display: none;
    }
    
    .content-wrapper {
        padding: 20px;
        margin: 10px 0;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .dashboard-card {
        padding: 24px;
    }
    
    .login-card {
        padding: 32px 24px;
        margin: 20px;
    }
    
    .login-title {
        font-size: 28px;
    }
}

@media (max-width: 480px) {
    .main-content {
        padding: 90px 16px 16px;
    }
    
    .dashboard-card {
        padding: 20px;
    }
    
    .login-card {
        padding: 24px 20px;
    }
    
    .login-title {
        font-size: 24px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 14px;
    }
}

/* Loading States */
.loading {
    opacity: 0.6;
    pointer-events: none;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-top: 2px solid var(--text-primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Smooth page transitions */
.page-transition {
    opacity: 0;
    transform: translateY(20px);
    transition: var(--transition);
}

.page-transition.loaded {
    opacity: 1;
    transform: translateY(0);
}