/* ============================================================
   naruDev Hub — Dark Theme
   ============================================================ */

/* --- Variables --- */
:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #1c2128;
    --bg-input: #0d1117;
    --border-color: #30363d;
    --border-focus: #58a6ff;

    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;

    --accent: #58a6ff;
    --accent-hover: #79c0ff;
    --success: #3fb950;
    --warning: #d29922;
    --danger: #f85149;
    --info: #58a6ff;

    --radius: 8px;
    --radius-sm: 4px;
    --shadow: 0 1px 3px rgba(0,0,0,0.3);
    --transition: 0.2s ease;
}

/* --- Reset & Base --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--accent-hover); }
a:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

/* --- Navbar --- */
.navbar {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.nav-inner {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.nav-brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary) !important;
    letter-spacing: -0.02em;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 1rem;
    font-size: 0.9rem;
}

.nav-user {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* --- Main Container --- */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
    flex: 1;
    width: 100%;
}

.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

/* --- Footer --- */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* --- Alerts --- */
.alert {
    padding: 0.85rem 1.25rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 0.9rem;
    border: 1px solid transparent;
}

.alert-error {
    background: rgba(248,81,73,0.1);
    border-color: var(--danger);
    color: var(--danger);
}

.alert-success {
    background: rgba(63,185,80,0.1);
    border-color: var(--success);
    color: var(--success);
}

.alert-info {
    background: rgba(88,166,255,0.1);
    border-color: var(--accent);
    color: var(--accent);
}

/* --- Project Grid --- */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1rem;
}

.project-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.25rem;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
    transition: border-color var(--transition), transform var(--transition);
    color: var(--text-primary) !important;
    position: relative;
    overflow: hidden;
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    text-decoration: none;
}

.project-card.private {
    border-left: 3px solid var(--warning);
}

.card-icon {
    font-size: 2rem;
    flex-shrink: 0;
    width: 3rem;
    height: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: var(--radius);
}

.card-body {
    flex: 1;
    min-width: 0;
}

.card-body h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.25rem;
}

.card-body p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    line-height: 1.5;
}

.badge {
    display: inline-block;
    padding: 0.2rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-private {
    background: rgba(210,153,34,0.15);
    color: var(--warning);
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-muted);
}

.empty-state p {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: 0.6rem 1.25rem;
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    font-size: 0.9rem;
    cursor: pointer;
    transition: all var(--transition);
    text-decoration: none;
    font-weight: 500;
}

.btn:hover {
    background: var(--bg-card);
    border-color: var(--accent);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: #fff !important;
    border-color: var(--accent);
    font-weight: 600;
}

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

.btn-primary:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.btn-danger {
    background: var(--danger);
    color: #fff !important;
    border-color: var(--danger);
}

.btn-danger:hover {
    opacity: 0.9;
}

.btn-sm {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
}

/* --- Forms --- */
.form {
    max-width: 420px;
    width: 100%;
}

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.4rem;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.65rem 0.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    color: var(--text-primary);
    font-size: 0.95rem;
    transition: border-color var(--transition), box-shadow var(--transition);
    font-family: inherit;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(88,166,255,0.15);
}

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

.form-hint {
    display: block;
    margin-top: 0.3rem;
    font-size: 0.8rem;
    color: var(--text-muted);
}

.form-footer {
    margin-top: 1rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
    text-align: center;
}

.login-form-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 2rem 0;
}

.login-form-wrapper h1 {
    margin-bottom: 1.5rem;
}

/* --- Admin Grid --- */
.admin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}

.admin-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    transition: border-color var(--transition), transform var(--transition);
    color: var(--text-primary) !important;
}

.admin-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    text-decoration: none;
}

.admin-card-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.admin-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.admin-card p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* --- Settings --- */
.settings-section {
    max-width: 600px;
}

.setting-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.setting-card h3 {
    font-size: 1.1rem;
    margin-bottom: 0.35rem;
}

.setting-desc {
    color: var(--text-secondary);
    font-size: 0.88rem;
    margin-bottom: 1rem;
}

.setting-hint {
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 0.75rem;
}

/* Toggle Switch */
.toggle-switch {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.toggle-switch input {
    display: none;
}

.toggle-slider {
    width: 44px;
    height: 24px;
    background: var(--border-color);
    border-radius: 12px;
    position: relative;
    transition: background var(--transition);
}

.toggle-slider::after {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    background: var(--text-primary);
    border-radius: 50%;
    top: 3px;
    left: 3px;
    transition: transform var(--transition);
}

.toggle-switch input:checked + .toggle-slider {
    background: var(--accent);
}

.toggle-switch input:checked + .toggle-slider::after {
    transform: translateX(20px);
}

.toggle-label {
    font-size: 0.9rem;
    font-weight: 500;
}

/* --- Tables --- */
.table-wrapper {
    overflow-x: auto;
    margin: 1rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

table th, table td {
    padding: 0.65rem 0.85rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

table th {
    background: var(--bg-secondary);
    font-weight: 600;
    color: var(--text-secondary);
    white-space: nowrap;
    position: sticky;
    top: 0;
}

table tr:hover td {
    background: rgba(255,255,255,0.02);
}

/* --- Password Strength --- */
.password-strength {
    height: 4px;
    background: var(--border-color);
    border-radius: 2px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.strength-bar {
    height: 100%;
    width: 0;
    border-radius: 2px;
    transition: width 0.3s ease, background 0.3s ease;
}

.strength-weak {
    background: var(--danger);
}

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

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

/* --- Modal (for admin actions) --- */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal-overlay.active {
    display: flex;
}

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 2rem;
    max-width: 500px;
    width: 90%;
    max-height: 80vh;
    overflow-y: auto;
}

.modal h2 {
    margin-bottom: 1.25rem;
    font-size: 1.25rem;
}

.modal-actions {
    display: flex;
    gap: 0.75rem;
    margin-top: 1.25rem;
    justify-content: flex-end;
}

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

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

    .nav-inner {
        flex-wrap: wrap;
    }

    .nav-links {
        flex-wrap: wrap;
        gap: 0.5rem;
    }

    .container {
        padding: 1.25rem 1rem;
    }

    .form {
        max-width: 100%;
    }
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

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

/* --- Focus visible --- */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to   { opacity: 1; transform: translateY(0); }
}

.project-card, .admin-card, .alert {
    animation: fadeIn 0.3s ease;
}