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

:root {
    --bg-primary: #0b0f19;
    --bg-card: #111827;
    --bg-input: #1a2332;
    --bg-hover: #1e293b;
    --accent: #2563eb;
    --accent-dark: #1e3a5f;
    --accent-glow: rgba(37, 99, 235, 0.15);
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border: rgba(37, 99, 235, 0.15);
    --border-input: rgba(148, 163, 184, 0.2);
    --success: #22c55e;
    --error: #ef4444;
    --warning: #f59e0b;
    --radius: 12px;
    --radius-sm: 8px;
}

body {
    font-family: 'Poppins', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
}

/* === Background Pattern === */
.bg-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* === Navbar === */
.navbar {
    position: relative;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 32px;
    background: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}

.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 1.1rem;
    color: var(--accent);
}

.navbar-links {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

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

.btn-logout {
    background: transparent;
    border: 1px solid var(--border-input);
    color: var(--text-secondary);
    padding: 6px 14px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    font-size: 0.85rem;
    transition: all 0.2s;
}

.btn-logout:hover {
    border-color: var(--error);
    color: var(--error);
}

/* === Main Content === */
.main-content {
    position: relative;
    z-index: 1;
    max-width: 1100px;
    margin: 0 auto;
    padding: 32px 24px;
}

/* === Cards === */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    margin-bottom: 24px;
}

.card-title {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 10px;
}

.card-description {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 20px;
}

/* === Form Sections === */
.form-section {
    margin-bottom: 24px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(148, 163, 184, 0.08);
}

.form-section:last-of-type {
    border-bottom: none;
}

.section-label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 12px;
}

.form-hint {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 6px;
    line-height: 1.5;
}

/* === Forms === */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.form-input {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border-input);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.9rem;
    transition: border-color 0.2s;
}

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

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

textarea.form-input {
    resize: vertical;
}

select.form-input {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    padding-right: 36px;
}

.form-row-multi {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

/* === Range Input === */
.form-range {
    width: 100%;
    height: 6px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-input);
    border-radius: 3px;
    outline: none;
    border: 1px solid var(--border-input);
    margin-top: 8px;
}

.form-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: 2px solid var(--bg-card);
    box-shadow: 0 0 6px var(--accent-glow);
}

.form-range::-moz-range-thumb {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
    border: 2px solid var(--bg-card);
}

.range-value {
    text-align: center;
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 600;
    margin-top: 6px;
}

/* === Platform Grid === */
.platform-grid {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 10px;
}

.platform-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 8px;
    background: var(--bg-input);
    border: 2px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.platform-card:hover {
    background: var(--bg-hover);
    border-color: rgba(37, 99, 235, 0.2);
}

.platform-card.selected {
    border-color: var(--accent);
    background: rgba(37, 99, 235, 0.08);
}

.platform-icon {
    color: var(--text-secondary);
    transition: color 0.2s;
}

.platform-card.selected .platform-icon {
    color: var(--accent);
}

.platform-name {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-primary);
}

.platform-info {
    font-size: 0.7rem;
    color: var(--text-muted);
}

/* === Video Type Grid === */
.type-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.type-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    padding: 20px;
    background: var(--bg-input);
    border: 2px solid transparent;
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
}

.type-card:hover {
    background: var(--bg-hover);
    border-color: rgba(37, 99, 235, 0.2);
}

.type-card.selected {
    border-color: var(--accent);
    background: rgba(37, 99, 235, 0.08);
}

.type-icon {
    color: var(--text-secondary);
    transition: color 0.2s;
}

.type-card.selected .type-icon {
    color: var(--accent);
}

.type-name {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

.type-desc {
    font-size: 0.78rem;
    color: var(--text-muted);
}

/* === Voice Tabs === */
.voice-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 16px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    border: 1px solid var(--border-input);
}

.voice-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-input);
    border: none;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.voice-tab + .voice-tab {
    border-left: 1px solid var(--border-input);
}

.voice-tab.active {
    background: rgba(37, 99, 235, 0.1);
    color: var(--accent);
}

.voice-tab:hover:not(.active) {
    background: var(--bg-hover);
}

.voice-tab-content {
    display: none;
}

.voice-tab-content.active {
    display: block;
}

/* === Upload Area === */
.upload-area {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 32px 20px;
    border: 2px dashed var(--border-input);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all 0.2s;
    text-align: center;
    color: var(--text-muted);
}

.upload-area:hover,
.upload-area.dragover {
    border-color: var(--accent);
    background: rgba(37, 99, 235, 0.05);
    color: var(--accent);
}

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

.upload-link {
    color: var(--accent);
    text-decoration: underline;
    cursor: pointer;
}

.upload-formats {
    font-size: 0.78rem;
    color: var(--text-muted);
}

.upload-preview {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
}

.upload-file-info {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
    font-size: 0.85rem;
}

#uploadFileSize {
    color: var(--text-muted);
    font-size: 0.78rem;
}

/* === Credit Estimate === */
.credit-estimate {
    background: rgba(37, 99, 235, 0.06);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 20px;
}

.credit-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.credit-breakdown {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.credit-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.85rem;
    color: var(--text-secondary);
    padding: 4px 0;
}

.credit-row.credit-total {
    border-top: 1px solid var(--border);
    padding-top: 10px;
    margin-top: 4px;
    font-weight: 600;
    color: var(--text-primary);
}

.credit-value {
    font-weight: 600;
    color: var(--accent);
}

.credit-total .credit-value {
    font-size: 1rem;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-family: inherit;
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: #1d4ed8;
}

.btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.btn-generate {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
    font-size: 1rem;
    font-weight: 600;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 0.8rem;
}

.btn-danger {
    background: transparent;
    border: 1px solid var(--error);
    color: var(--error);
}

.btn-danger:hover {
    background: var(--error);
    color: #fff;
}

/* === Alerts === */
.alert {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.alert-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #fca5a5;
}

.alert-success {
    background: rgba(34, 197, 94, 0.1);
    border: 1px solid rgba(34, 197, 94, 0.3);
    color: #86efac;
}

/* === Login === */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 80vh;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    width: 100%;
    max-width: 420px;
}

.login-header {
    text-align: center;
    margin-bottom: 32px;
}

.login-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-top: 12px;
}

.login-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 4px;
}

/* === Progress Pipeline === */
.progress-pipeline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    padding: 24px 0;
}

.progress-step {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.step-circle {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--bg-input);
    border: 2px solid var(--border-input);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    transition: all 0.4s;
}

.step-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-weight: 500;
    transition: color 0.4s;
}

.progress-line {
    width: 80px;
    height: 2px;
    background: var(--border-input);
    margin-bottom: 28px;
    transition: background 0.4s;
}

.progress-step.active .step-circle {
    border-color: var(--accent);
    color: var(--accent);
    box-shadow: 0 0 16px var(--accent-glow);
    animation: pulse-glow 1.5s ease-in-out infinite;
}

.progress-step.active .step-label {
    color: var(--accent);
}

.progress-step.done .step-circle {
    border-color: var(--success);
    background: var(--success);
    color: #fff;
}

.progress-step.done .step-label {
    color: var(--success);
}

.progress-step.skipped .step-circle {
    border-color: var(--text-muted);
    background: var(--bg-hover);
    color: var(--text-muted);
}

.progress-step.skipped .step-label {
    color: var(--text-muted);
    text-decoration: line-through;
}

.progress-step.error .step-circle {
    border-color: var(--error);
    color: var(--error);
}

.progress-line.done {
    background: var(--success);
}

.progress-line.active {
    background: linear-gradient(90deg, var(--success), var(--accent));
}

.progress-line.skipped {
    background: var(--text-muted);
}

@keyframes pulse-glow {
    0%, 100% { box-shadow: 0 0 16px var(--accent-glow); }
    50% { box-shadow: 0 0 28px rgba(37, 99, 235, 0.3); }
}

.progress-status {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.progress-error {
    text-align: center;
    color: var(--error);
    font-size: 0.9rem;
    margin-top: 8px;
}

/* === Library Grid === */
.library-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 20px;
}

.empty-message {
    color: var(--text-muted);
    font-size: 0.9rem;
    grid-column: 1 / -1;
    text-align: center;
    padding: 40px 0;
}

.video-card {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    transition: border-color 0.2s;
}

.video-card:hover {
    border-color: rgba(37, 99, 235, 0.3);
}

.video-card-preview {
    position: relative;
    aspect-ratio: 16/9;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-card-preview video {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-card-preview img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.video-card-placeholder {
    color: var(--text-muted);
}

.video-card-body {
    padding: 14px;
}

.video-card-prompt {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.video-card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 6px;
}

.video-card-tags {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.video-tag {
    font-size: 0.7rem;
    padding: 2px 8px;
    border-radius: 10px;
    background: rgba(148, 163, 184, 0.1);
    color: var(--text-muted);
}

.video-card-credits {
    font-size: 0.75rem;
    color: var(--accent);
    margin-bottom: 8px;
}

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

.status-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 12px;
    font-size: 0.7rem;
    font-weight: 500;
    text-transform: uppercase;
}

.status-badge.completed {
    background: rgba(34, 197, 94, 0.15);
    color: var(--success);
}

.status-badge.failed {
    background: rgba(239, 68, 68, 0.15);
    color: var(--error);
}

.status-badge.pending,
.status-badge.generating_image,
.status-badge.generating_audio,
.status-badge.generating_video {
    background: rgba(37, 99, 235, 0.15);
    color: var(--accent);
}

/* === Settings === */
.settings-container {
    max-width: 700px;
    margin: 0 auto;
}

.settings-card {
    margin-top: 0;
}

/* Settings Tabs */
.settings-tabs {
    display: flex;
    gap: 0;
    margin-top: 20px;
    margin-bottom: 0;
    border-bottom: 1px solid var(--border);
}

.settings-tab {
    padding: 12px 28px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

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

.settings-tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.settings-tab-panel {
    display: none;
}

.settings-tab-panel.active {
    display: block;
}

/* Users Table */
.users-table-wrap {
    overflow-x: auto;
}

.users-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.85rem;
}

.users-table th {
    text-align: left;
    font-weight: 600;
    color: var(--text-secondary);
    padding: 10px 8px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.users-table td {
    padding: 10px 8px;
    border-bottom: 1px solid rgba(148,163,184,0.06);
    color: var(--text-primary);
    vertical-align: middle;
}

.users-table tr:hover td {
    background: rgba(37,99,235,0.03);
}

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

.access-badge {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 10px;
    font-size: 0.72rem;
    font-weight: 500;
}

.access-badge.on {
    background: rgba(34,197,94,0.15);
    color: var(--success);
}

.access-badge.off {
    background: rgba(148,163,184,0.1);
    color: var(--text-muted);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    width: 100%;
    max-width: 480px;
    max-height: 90vh;
    overflow-y: auto;
}

/* Checkboxes */
.access-checkboxes {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--accent);
    cursor: pointer;
}

/* Preview Section (image/audio during generation) */
.generation-preview {
    margin-top: 20px;
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.preview-item {
    flex: 1;
    min-width: 200px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.preview-item-header {
    padding: 8px 12px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border);
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.preview-item img {
    width: 100%;
    display: block;
}

.preview-item audio {
    width: 100%;
    display: block;
    padding: 12px;
}

/* === Responsive === */
@media (max-width: 768px) {
    .navbar {
        padding: 12px 16px;
        flex-direction: column;
        gap: 12px;
    }

    .navbar-links {
        gap: 12px;
        flex-wrap: wrap;
        justify-content: center;
    }

    .main-content {
        padding: 16px 12px;
    }

    .card {
        padding: 20px 16px;
    }

    .form-row-multi {
        grid-template-columns: repeat(2, 1fr);
    }

    .platform-grid {
        grid-template-columns: repeat(3, 1fr);
    }

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

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

    .progress-line {
        width: 40px;
    }
}

@media (max-width: 480px) {
    .form-row-multi {
        grid-template-columns: 1fr;
    }

    .platform-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}