/* Modern CSS for Gated Content Platform */

* {
    box-sizing: border-box;
}

:root {
    --primary-50: #eff6ff;
    --primary-500: #3b82f6;
    --primary-600: #2563eb;
    --primary-700: #1d4ed8;
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--gray-900);
    background-color: var(--gray-50);
    margin: 0;
    padding: 0;
    transition: background-color 0.2s, color 0.2s;
}

body.dark {
    background-color: var(--gray-900);
    color: var(--gray-100);
}

/* Make dark mode more obvious */
body.dark {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Navigation */
nav {
    background: white;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    border-bottom: 1px solid var(--gray-200);
}

body.dark nav {
    background: var(--gray-800);
    border-bottom-color: var(--gray-700);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 4rem;
    padding: 0 1.5rem;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--gray-900);
    text-decoration: none;
}

body.dark .nav-brand {
    color: white;
}

.nav-brand:hover {
    color: var(--primary-600);
}

.nav-items {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.nav-user {
    font-size: 0.875rem;
    color: var(--gray-600);
}

body.dark .nav-user {
    color: var(--gray-400);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    border: 1px solid transparent;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: 0.375rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    background: none;
}

.btn:focus {
    outline: 2px solid var(--primary-500);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--primary-600);
    color: white;
    border-color: var(--primary-600);
}

.btn-primary:hover {
    background-color: var(--primary-700);
    border-color: var(--primary-700);
}

.btn-secondary {
    background-color: var(--gray-600);
    color: white;
    border-color: var(--gray-600);
}

.btn-secondary:hover {
    background-color: var(--gray-700);
    border-color: var(--gray-700);
}

.btn-outline {
    border-color: var(--gray-300);
    background-color: white;
    color: var(--gray-700);
}

body.dark .btn-outline {
    border-color: var(--gray-600);
    background-color: var(--gray-800);
    color: var(--gray-300);
}

.btn-outline:hover {
    background-color: var(--gray-50);
}

body.dark .btn-outline:hover {
    background-color: var(--gray-700);
}

.btn-danger {
    background-color: #dc2626;
    color: white;
    border-color: #dc2626;
}

.btn-danger:hover {
    background-color: #b91c1c;
    border-color: #b91c1c;
}

.btn-lg {
    padding: 0.75rem 1.5rem;
    font-size: 1.125rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.25rem;
}

body.dark .form-label {
    color: var(--gray-300);
}

.form-input {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--gray-300);
    border-radius: 0.375rem;
    background-color: white;
    color: var(--gray-900);
    font-size: 0.875rem;
    transition: border-color 0.2s, box-shadow 0.2s;
}

body.dark .form-input {
    border-color: var(--gray-600);
    background-color: var(--gray-800);
    color: var(--gray-100);
}

.form-input:focus {
    outline: none;
    border-color: var(--primary-500);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.form-input::placeholder {
    color: var(--gray-500);
}

body.dark .form-input::placeholder {
    color: var(--gray-400);
}

/* Cards */
.card {
    background: white;
    border: 1px solid var(--gray-200);
    border-radius: 0.5rem;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
}

body.dark .card {
    background: var(--gray-800);
    border-color: var(--gray-700);
}

.card-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--gray-200);
}

body.dark .card-header {
    border-bottom-color: var(--gray-700);
}

.card-body {
    padding: 1.5rem;
}

/* Alerts */
.alert {
    padding: 1rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
}

.alert-error {
    background-color: #fef2f2;
    border: 1px solid #fecaca;
    color: #dc2626;
}

body.dark .alert-error {
    background-color: rgba(220, 38, 38, 0.1);
    border-color: rgba(220, 38, 38, 0.3);
    color: #fca5a5;
}

.alert-success {
    background-color: #f0fdf4;
    border: 1px solid #bbf7d0;
    color: #16a34a;
}

body.dark .alert-success {
    background-color: rgba(22, 163, 74, 0.1);
    border-color: rgba(22, 163, 74, 0.3);
    color: #86efac;
}

/* Progress Bar */
.progress {
    background-color: var(--gray-200);
    border-radius: 9999px;
    overflow: hidden;
}

body.dark .progress {
    background-color: var(--gray-700);
}

.progress-bar {
    background-color: var(--primary-600);
    height: 100%;
    border-radius: 9999px;
    transition: width 0.3s ease;
}

/* Video Player */
.video-container {
    position: relative;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    aspect-ratio: 16/9;
    background: #000;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

#player {
    width: 100%;
    height: 100%;
}

/* Timer Display */
.timer-display {
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    margin: 2rem 0;
    color: var(--gray-900);
}

body.dark .timer-display {
    color: white;
}

/* Responsive */
@media (max-width: 768px) {
    .container {
        padding: 0 0.5rem;
    }
    
    .nav-container {
        padding: 0 1rem;
        flex-direction: column;
        height: auto;
        gap: 1rem;
        padding-top: 1rem;
        padding-bottom: 1rem;
    }
    
    .nav-items {
        gap: 0.5rem;
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .nav-user {
        font-size: 0.75rem;
    }
    
    .timer-display {
        font-size: 1.5rem;
    }
    
    .video-container {
        max-width: 100%;
        margin: 0 auto;
    }
    
    .btn-lg {
        padding: 0.75rem 1.25rem;
        font-size: 1rem;
    }
    
    .card-body {
        padding: 1rem;
    }
    
    .space-x-4 > * + * {
        margin-left: 0.5rem;
    }
    
    h1 {
        font-size: 1.25rem !important;
    }
    
    h2 {
        font-size: 1.125rem !important;
    }
}

@media (max-width: 480px) {
    .nav-container {
        text-align: center;
    }
    
    .nav-brand {
        font-size: 1rem;
    }
    
    .timer-display {
        font-size: 1.25rem;
    }
    
    .btn {
        font-size: 0.75rem;
        padding: 0.375rem 0.75rem;
    }
    
    .btn-lg {
        font-size: 0.875rem;
        padding: 0.5rem 1rem;
    }
}

/* Utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mb-8 { margin-bottom: 2rem; }

.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mt-6 { margin-top: 1.5rem; }
.mt-8 { margin-top: 2rem; }

.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.p-8 { padding: 2rem; }

.flex { display: flex; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.space-x-2 > * + * { margin-left: 0.5rem; }
.space-x-4 > * + * { margin-left: 1rem; }
.space-y-4 > * + * { margin-top: 1rem; }
.space-y-6 > * + * { margin-top: 1.5rem; }

.w-full { width: 100%; }
.max-w-md { max-width: 28rem; }
.max-w-2xl { max-width: 42rem; }
.max-w-4xl { max-width: 56rem; }

.min-h-screen { min-height: 100vh; }

.rounded { border-radius: 0.25rem; }
.rounded-md { border-radius: 0.375rem; }
.rounded-lg { border-radius: 0.5rem; }

.shadow { box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1); }

.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }

/* Dark mode toggle */
.dark-toggle {
    background: none;
    border: none;
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.375rem;
    transition: background-color 0.2s;
}

.dark-toggle:hover {
    background-color: var(--gray-100);
}

body.dark .dark-toggle:hover {
    background-color: var(--gray-700);
}

/* Watch Page Specific Styles */
.watch-page {
    background: linear-gradient(135deg, var(--gray-50) 0%, var(--gray-100) 100%);
    transition: background 0.3s ease;
}

body.dark .watch-page {
    background: linear-gradient(135deg, #1f2937 0%, #111827 100%);
}

.watch-title {
    font-size: 1.75rem;
    font-weight: bold;
    color: var(--gray-900);
    transition: color 0.2s;
}

body.dark .watch-title {
    color: white;
}

/* Thumbnail Container */
.thumbnail-container {
    max-width: 400px;
    width: 100%;
    margin: 0 auto;
    border-radius: 0.5rem;
    overflow: hidden;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
    background: white;
    transition: box-shadow 0.3s, background-color 0.3s;
}

body.dark .thumbnail-container {
    background: var(--gray-800);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.thumbnail-container img {
    width: 100%;
    height: auto;
    display: block;
}

@media (max-width: 768px) {
    .watch-title {
        font-size: 1.25rem;
    }
    
    .thumbnail-container {
        max-width: 100%;
    }
}