/* ============================================================================
   StreamCastHub - Main Stylesheet
   Responsive Design | Dark/Light Mode | Bootstrap 5
   ============================================================================ */

:root {
    /* Light Mode Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #e9ecef;
    --text-primary: #212529;
    --text-secondary: #6c757d;
    --border-color: #dee2e6;
    --sidebar-bg: #f8f9fa;
    --sidebar-text: #212529;
    --accent-primary: #0d6efd;
    --accent-secondary: #6c757d;
    --success: #198754;
    --danger: #dc3545;
    --warning: #ffc107;
    --info: #0dcaf0;
    --input-bg: #f0f4f8;
}

body.dark-mode {
    /* Dark Mode Colors */
    --bg-primary: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --bg-tertiary: #3d3d3d;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border-color: #444444;
    --sidebar-bg: #2d2d2d;
    --sidebar-text: #ffffff;
    --accent-primary: #0d6efd;
    --accent-secondary: #b0b0b0;
    --success: #20c997;
    --danger: #ff6b6b;
    --warning: #ffd43b;
    --info: #74c0fc;
    --input-bg: #3a3a3a;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* Base Styles */
html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: 16px;
    line-height: 1.5;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--text-primary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

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

a:hover {
    text-decoration: underline;
}

/* Forms */
input, textarea, select {
    background-color: var(--input-bg);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    padding: 0.5rem 0.75rem;
    font-family: inherit;
    font-size: inherit;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent-primary);
    background-color: var(--bg-primary);
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.25);
}

button {
    cursor: pointer;
    border: none;
    border-radius: 0.375rem;
    padding: 0.5rem 1rem;
    font-family: inherit;
    font-size: inherit;
    font-weight: 500;
    transition: all 0.2s ease;
}

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

.btn-primary:hover {
    background-color: #0b5ed7;
    transform: translateY(-1px);
}

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
}

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

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

.btn-danger:hover {
    background-color: #bb2d3b;
}

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

.btn-success:hover {
    background-color: #157347;
}

/* ============================================================================
   Layout & Navigation
   ============================================================================ */

.navbar {
    background-color: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

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

.hamburger {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-primary);
    cursor: pointer;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    width: 250px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border-color);
    padding-top: 80px;
    overflow-y: auto;
    transition: transform 0.3s ease;
    z-index: 99;
}

.sidebar ul {
    list-style: none;
    padding: 1rem 0;
}

.sidebar li {
    margin: 0;
}

.sidebar a {
    display: block;
    padding: 0.75rem 1.5rem;
    color: var(--sidebar-text);
    text-decoration: none;
    transition: background-color 0.2s ease, padding-left 0.2s ease;
    border-left: 3px solid transparent;
}

.sidebar a:hover,
.sidebar a.active {
    background-color: var(--bg-tertiary);
    border-left-color: var(--accent-primary);
    padding-left: 1.75rem;
}

/* Main Content */
.main-container {
    margin-left: 250px;
    padding-top: 20px;
    padding-right: 0;
}

.content {
    padding: 1rem;
    margin: 0;
    width: 100%;
}

/* Card */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: box-shadow 0.2s ease;
}

.card:hover {
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

thead th {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    padding: 0.75rem;
    text-align: left;
    font-weight: 600;
    border-bottom: 2px solid var(--border-color);
}

tbody td {
    padding: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

tbody tr:hover {
    background-color: var(--bg-tertiary);
}

/* ============================================================================
   Utility Classes
   ============================================================================ */

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

.text-right {
    text-align: right;
}

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

.flex {
    display: flex;
}

.gap-2 {
    gap: 1rem;
}

.gap-3 {
    gap: 1.5rem;
}

.justify-between {
    justify-content: space-between;
}

.align-center {
    align-items: center;
}

.hidden {
    display: none !important;
}

.visible {
    display: block !important;
}

.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    pointer-events: none;
}

/* ============================================================================
   Alert & Messages
   ============================================================================ */

.alert {
    padding: 0.75rem 1rem;
    border-radius: 0.375rem;
    margin-bottom: 1rem;
    border-left: 4px solid;
}

.alert-success {
    background-color: rgba(25, 135, 84, 0.1);
    color: var(--success);
    border-left-color: var(--success);
}

.alert-danger {
    background-color: rgba(220, 53, 69, 0.1);
    color: var(--danger);
    border-left-color: var(--danger);
}

.alert-warning {
    background-color: rgba(255, 193, 7, 0.1);
    color: var(--warning);
    border-left-color: var(--warning);
}

.alert-info {
    background-color: rgba(13, 202, 240, 0.1);
    color: var(--info);
    border-left-color: var(--info);
}

/* ============================================================================
   Responsive Design
   ============================================================================ */

@media (max-width: 768px) {
    .hamburger {
        display: block;
    }
    
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.active {
        transform: translateX(0);
    }
    
    .main-container {
        margin-left: 0;
        padding-right: 0;
    }
    
    .navbar {
        padding: 1rem;
    }
    
    .content {
        padding: 1rem;
        width: 100%;
    }
    
    table {
        font-size: 0.875rem;
    }
    
    thead th, tbody td {
        padding: 0.5rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }
    
    .navbar-brand {
        font-size: 1.25rem;
    }
    
    .card {
        padding: 1rem;
    }
    
    button {
        padding: 0.4rem 0.75rem;
        font-size: 0.875rem;
    }
}

/* Loading Spinner */
.spinner {
    border: 3px solid var(--bg-tertiary);
    border-top: 3px solid var(--accent-primary);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
}

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

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

@keyframes slideIn {
    from {
        transform: translateX(-20px);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

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

.slide-in {
    animation: slideIn 0.3s ease-out;
}