/* ===== CSS VARIABLES ===== */
:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #1a1a1a;
    --bg-tertiary: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --accent-green: #00ff88;
    --accent-green-hover: #00cc6a;
    --accent-green-dark: #00994d;
    --border-color: #333333;
    --shadow: rgba(0, 255, 136, 0.1);
}

/* ===== GLOBAL RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

@font-face {
    font-family: 'Transducer';
    src: url('Fonts/Transducer Medium.ttf') format('truetype');
    font-weight: normal;
    font-style: normal;
}

@font-face {
    font-family: 'Transducer';
    src: url('Fonts/Transducer Extended Black.ttf') format('truetype');
    font-weight: bold;
    font-style: normal;
}

@font-face {
    font-family: 'Tungsten';
    src: url('Fonts/Tungsten-Bold.otf') format('opentype');
    font-weight: bold;
    font-style: normal;
}

@font-face {
    font-family: 'Tungsten';
    src: url('Fonts/Tungsten-Book.otf') format('opentype');
    font-weight: normal;
    font-style: normal;
}

body {
    font-family: 'Transducer', sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
}

/* ===== SIDEBAR NAVIGATION ===== */
.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.3);
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 1000;
}

.sidebar-header {
    padding: 2rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
}

.sidebar-header h1 {
    color: var(--accent-green);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.sidebar-header p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-item {
    margin: 0.25rem 0;
}

.nav-link {
    display: flex;
    align-items: center;
    padding: 1rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    border-left: 3px solid transparent;
}

.nav-link:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-left-color: var(--accent-green);
    transform: translateX(5px);
}

.nav-link.active {
    background: linear-gradient(90deg, var(--accent-green-dark), transparent);
    color: var(--accent-green);
    border-left-color: var(--accent-green);
}

.nav-icon {
    width: 20px;
    height: 20px;
    margin-right: 1rem;
    opacity: 0.7;
}

/* ===== MAIN CONTENT ===== */
.main-content {
    margin-left: 280px;
    flex: 1;
    min-height: 100vh;
    background: var(--bg-primary);
}

.content-wrapper {
    padding: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.page-header {
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.page-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 1.1rem;
}

/* ===== CARDS AND CONTAINERS ===== */
.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.card-header {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.card-title {
    font-size: 1.3rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

/* ===== FORM ELEMENTS ===== */
.form-group {
    margin-bottom: 1.5rem;
}

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-weight: 600;
}

.form-control {
    width: 100%;
    padding: 0.75rem 1rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    outline: none;
    border-color: var(--accent-green);
    box-shadow: 0 0 0 3px var(--shadow);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    margin: 0.25rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-green), var(--accent-green-dark));
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--accent-green-hover), var(--accent-green));
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--shadow);
}

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

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

/* ===== IMAGES ===== */
.stat-image {
    max-width: 100%;
    border-radius: 12px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-color);
}

/* ===== MOBILE MENU ===== */
.mobile-menu-btn {
    display: none;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.6s ease-out;
}

/* ===== UTILITY CLASSES ===== */
.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.margin-top-2 {
    margin-top: 2rem;
}

.margin-top-1-5 {
    margin-top: 1.5rem;
}

.margin-top-1 {
    margin-top: 1rem;
}

.margin-bottom-1 {
    margin-bottom: 1rem;
}

.margin-bottom-1-5 {
    margin-bottom: 1.5rem;
}

.margin-bottom-0-5 {
    margin-bottom: 0.5rem;
}

.margin-bottom-0-75 {
    margin-bottom: 0.75rem;
}

.color-green {
    color: var(--accent-green);
}

.color-secondary {
    color: var(--text-secondary);
}

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

.font-size-1-1 {
    font-size: 1.1rem;
}

.line-height-1-6 {
    line-height: 1.6;
}

.padding-left-1-5 {
    padding-left: 1.5rem;
}

.overflow-auto {
    overflow-x: auto;
}

.max-height-400 {
    max-height: 400px;
    overflow-y: auto;
}

/* ===== HOME PAGE SPECIFIC ===== */
.welcome-image {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--accent-green);
    box-shadow: 0 0 20px var(--shadow);
}

.readme-section {
    background: var(--bg-tertiary);
    padding: 1rem;
    border-radius: 8px;
    border-left: 3px solid var(--accent-green);
}

.readme-code {
    background: var(--bg-primary);
    padding: 0.25rem;
    border-radius: 4px;
}

/* ===== MESSAGE CARDS ===== */
.message-success {
    padding: 1rem;
    background: var(--accent-green-dark);
    border-radius: 8px;
    color: white;
    text-align: center;
}

.message-error {
    padding: 1rem;
    background: #dc3545;
    border-radius: 8px;
    color: white;
    text-align: center;
}

/* ===== FILE LIST ===== */
.file-item {
    padding: 0.75rem;
    margin: 0.5rem 0;
    background: var(--bg-tertiary);
    border-radius: 8px;
    border-left: 3px solid var(--accent-green);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.file-name {
    color: var(--text-primary);
    font-weight: 600;
}

.file-description {
    color: var(--text-secondary);
}

.file-status {
    color: var(--accent-green);
}

/* ===== TABLES ===== */
.stats-table {
    width: 100%;
    border-collapse: collapse;
}

.table-header {
    background: var(--bg-tertiary);
    border-bottom: 2px solid var(--accent-green);
}

.table-header th {
    padding: 1rem;
    text-align: left;
    color: var(--accent-green);
    font-weight: 600;
}

.table-header th.text-center {
    text-align: center;
}

.table-row {
    border-bottom: 1px solid var(--border-color);
}

.table-cell {
    padding: 1rem;
    color: var(--text-secondary);
}

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

.table-cell.primary-text {
    color: var(--text-primary);
    font-weight: 600;
}

.table-cell.accent-text {
    color: var(--accent-green);
    font-weight: 600;
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: 2rem;
    color: var(--text-secondary);
}

.empty-state h3 {
    color: var(--text-primary);
    margin-bottom: 1rem;
}

/* ===== FORM HELPERS ===== */
.form-helper {
    color: var(--text-secondary);
    margin-top: 0.5rem;
    display: block;
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
    }
    
    .mobile-menu-btn {
        display: block;
        position: fixed;
        top: 1rem;
        left: 1rem;
        z-index: 1001;
        background: var(--accent-green);
        color: var(--bg-primary);
        border: none;
        padding: 0.5rem;
        border-radius: 8px;
        cursor: pointer;
    }
    
    .content-wrapper {
        padding: 1rem;
    }
    
    .page-title {
        font-size: 2rem;
    }
}

/* ===== RADIO BUTTONS ===== */
.radio-group {
    display: flex;
    gap: 1rem;
    margin-bottom: 0.5rem;
}

.radio-item {
    display: flex;
    align-items: center;
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: background-color 0.2s ease;
}

.radio-item:hover {
    background-color: var(--bg-tertiary);
}

.radio-item input[type="radio"] {
    margin-right: 0.5rem;
    accent-color: var(--accent-green);
}

.radio-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    cursor: pointer;
}