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

:root {
    --bg: #0a0a0f;
    --bg2: #111118;
    --bg3: #18181f;
    --border: #2a2a35;
    --accent: #7c6af7;
    --accent2: #a594f9;
    --text: #e8e8f0;
    --text2: #8888a0;
    --text3: #55556a;
    --success: #4ade80;
    --error: #f87171;
    --radius: 12px;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    height: 100vh;
    overflow: hidden;
}

.app {
    display: flex;
    height: 100vh;
}

/* SIDEBAR */
.sidebar {
    width: 220px;
    min-width: 220px;
    background: var(--bg2);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    padding: 24px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0 20px 28px;
    border-bottom: 1px solid var(--border);
}

.logo-icon {
    width: 32px;
    height: 32px;
    background: var(--accent);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
}

.logo-text {
    font-weight: 600;
    font-size: 15px;
}

.nav {
    flex: 1;
    padding: 20px 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 8px;
    color: var(--text2);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.15s;
    cursor: pointer;
}

.nav-item:hover { background: var(--bg3); color: var(--text); }
.nav-item.active { background: rgba(124,106,247,0.15); color: var(--accent2); }

.sidebar-footer {
    padding: 16px;
    border-top: 1px solid var(--border);
}

.credits-box {
    background: var(--bg3);
    border-radius: 8px;
    padding: 12px;
}

.credits-label { font-size: 11px; color: var(--text3); margin-bottom: 4px; }
.credits-value { font-size: 13px; color: var(--text2); }

/* MAIN */
.main {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
}

.tab-content { display: none; }
.tab-content.active { display: block; }
.hidden { display: none !important; }

.page-header {
    margin-bottom: 28px;
}

.page-header h1 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 4px;
}

.page-header p {
    color: var(--text2);
    font-size: 14px;
}

/* GENERATOR GRID */
.generator-grid {
    display: grid;
    grid-template-columns: 420px 1fr;
    gap: 24px;
}

/* CONTROLS PANEL */
.controls-panel {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
    overflow-y: auto;
    max-height: calc(100vh - 160px);
}

.field-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.field-group label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text2);
}

.hint {
    font-size: 11px;
    color: var(--text3);
    font-weight: 400;
    margin-left: 6px;
}

.field-group input,
.field-group select,
.field-group textarea {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 10px 12px;
    color: var(--text);
    font-size: 14px;
    font-family: 'Inter', sans-serif;
    outline: none;
    transition: border 0.15s;
    resize: none;
}

.field-group input:focus,
.field-group select:focus,
.field-group textarea:focus {
    border-color: var(--accent);
}

select option { background: var(--bg3); }

/* MODE SELECTOR */
.mode-selector {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.mode-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    padding: 14px 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg3);
    color: var(--text2);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.15s;
}

.mode-btn:hover { border-color: var(--accent); color: var(--text); }
.mode-btn.active { border-color: var(--accent); background: rgba(124,106,247,0.1); color: var(--accent2); }

/* TOGGLE GROUP */
.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.toggle-group {
    display: flex;
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.toggle-btn {
    flex: 1;
    padding: 8px;
    background: var(--bg3);
    border: none;
    color: var(--text2);
    cursor: pointer;
    font-size: 13px;
    transition: all 0.15s;
}

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

/* ASPECT SELECTOR */
.aspect-selector {
    display: flex;
    gap: 8px;
}

.aspect-btn {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--bg3);
    color: var(--text2);
    cursor: pointer;
    font-size: 12px;
    text-align: center;
    transition: all 0.15s;
    line-height: 1.4;
}

.aspect-btn:hover { border-color: var(--accent); }
.aspect-btn.active { border-color: var(--accent); background: rgba(124,106,247,0.1); color: var(--accent2); }
.aspect-btn small { color: var(--text3); font-size: 10px; }

/* COST BOX */
.cost-box {
    background: rgba(124,106,247,0.08);
    border: 1px solid rgba(124,106,247,0.3);
    border-radius: 10px;
    padding: 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cost-label { font-size: 13px; color: var(--text2); }
.cost-value { font-size: 24px; font-weight: 700; color: var(--accent2); }
.cost-note { font-size: 11px; color: var(--text3); text-align: right; }

/* UPLOAD AREA */
.upload-area {
    position: relative;
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 28px;
    text-align: center;
    cursor: pointer;
    color: var(--text2);
    font-size: 13px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: all 0.15s;
}

.upload-area:hover { border-color: var(--accent); color: var(--text); }
.upload-icon { font-size: 24px; }
.upload-hint { font-size: 11px; color: var(--text3); }

/* GENERATE BUTTON */
.btn-generate {
    width: 100%;
    padding: 14px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-generate:hover { background: var(--accent2); transform: translateY(-1px); }
.btn-generate:active { transform: translateY(0); }
.btn-generate:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* PREVIEW PANEL */
.preview-panel {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.preview-box {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    aspect-ratio: 16/9;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
}

.preview-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    color: var(--text3);
    font-size: 14px;
}

.preview-icon { font-size: 48px; opacity: 0.3; }

#result-video {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* GENERATING */
.generating {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
    padding: 32px;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.gen-text { font-size: 15px; font-weight: 500; }
.gen-subtext { font-size: 13px; color: var(--text2); }

.progress-bar {
    width: 200px;
    height: 3px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    width: 0%;
    transition: width 0.5s;
    animation: progress-anim 30s linear forwards;
}

@keyframes progress-anim { to { width: 90%; } }

/* VIDEO ACTIONS */
.video-actions {
    display: flex;
    gap: 10px;
}

.btn-action {
    flex: 1;
    padding: 12px;
    border-radius: 8px;
    border: 1px solid var(--accent);
    background: var(--accent);
    color: white;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.15s;
}

.btn-action.secondary {
    background: transparent;
    color: var(--accent2);
}

.btn-action:hover { opacity: 0.85; }

/* MODEL INFO */
.model-info {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.model-info-title {
    font-size: 13px;
    font-weight: 500;
    color: var(--text2);
    margin-bottom: 14px;
}

.model-cards {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 10px;
}

.model-card {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 12px;
}

.model-card.highlight {
    border-color: rgba(124,106,247,0.5);
    background: rgba(124,106,247,0.05);
}

.model-name { font-size: 13px; font-weight: 600; margin-bottom: 4px; }
.model-desc { font-size: 11px; color: var(--text2); margin-bottom: 8px; line-height: 1.4; }
.model-price { font-size: 12px; color: var(--accent2); font-weight: 500; }

/* GALLERY */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.gallery-empty {
    grid-column: 1/-1;
    text-align: center;
    padding: 80px;
    color: var(--text3);
}

.gallery-item {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.gallery-item video {
    width: 100%;
    aspect-ratio: 16/9;
    object-fit: cover;
}

.gallery-item-info {
    padding: 12px;
}

.gallery-item-prompt {
    font-size: 12px;
    color: var(--text2);
    margin-bottom: 6px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.gallery-item-meta {
    font-size: 11px;
    color: var(--text3);
}

/* SETTINGS */
.settings-panel {
    max-width: 600px;
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.api-input-row {
    display: flex;
    gap: 8px;
}

.api-input-row input { flex: 1; }

.btn-save {
    padding: 10px 20px;
    background: var(--accent);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    white-space: nowrap;
}

.field-hint { font-size: 12px; color: var(--text3); }

.api-status {
    padding: 12px;
    border-radius: 8px;
    font-size: 13px;
    display: none;
}

.api-status.success { background: rgba(74,222,128,0.1); color: var(--success); display: block; }
.api-status.error { background: rgba(248,113,113,0.1); color: var(--error); display: block; }

.settings-info {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
}

.info-title { font-size: 14px; font-weight: 500; margin-bottom: 14px; }

.price-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.price-table th {
    text-align: left;
    padding: 8px 12px;
    background: var(--bg3);
    color: var(--text2);
    font-weight: 500;
}

.price-table td {
    padding: 10px 12px;
    border-top: 1px solid var(--border);
    color: var(--text);
}

.price-table tr:last-child td { color: var(--accent2); }

/* IMG PREVIEW */
.img-preview {
    width: 100%;
    border-radius: 8px;
    margin-top: 8px;
    max-height: 200px;
    object-fit: cover;
}

/* INFO BOX */
.info-box {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px 20px;
}

.info-box-title {
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 10px;
    color: var(--text2);
}

.info-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.info-list li {
    font-size: 12px;
    color: var(--text2);
    padding-left: 12px;
    position: relative;
}

.info-list li::before {
    content: '·';
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* CAMERA CONTROLS */
.camera-grid {
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.camera-control {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.camera-label {
    font-size: 12px;
    color: var(--text2);
    font-weight: 500;
}

.camera-control input[type=range] {
    width: 100%;
    accent-color: var(--accent);
    background: transparent;
    border: none;
    padding: 0;
    cursor: pointer;
}

.cam-value-row {
    display: flex;
    justify-content: space-between;
    font-size: 10px;
    color: var(--text3);
}

.cam-val {
    color: var(--accent2);
    font-weight: 600;
    font-size: 12px;
}

/* PRESET BUTTONS */
.preset-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 6px;
}

.preset-btn {
    padding: 8px 6px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text2);
    font-size: 11px;
    cursor: pointer;
    transition: all 0.15s;
    text-align: center;
}

.preset-btn:hover {
    border-color: var(--accent);
    color: var(--accent2);
    background: rgba(124,106,247,0.1);
}

/* MULTI-IMAGEN GRID */
.multi-upload-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

.multi-slot {
    aspect-ratio: 16/9;
    border: 2px dashed var(--border);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 4px;
    cursor: pointer;
    color: var(--text3);
    font-size: 12px;
    transition: all 0.15s;
    overflow: hidden;
    position: relative;
}

.multi-slot:hover {
    border-color: var(--accent);
    color: var(--text2);
}

.slot-icon {
    font-size: 22px;
    font-weight: 300;
    line-height: 1;
}

.slot-text {
    font-size: 12px;
}

/* INFO TAG */
.info-tag {
    background: rgba(124,106,247,0.1);
    border: 1px solid rgba(124,106,247,0.3);
    border-radius: 6px;
    padding: 8px 12px;
    font-size: 12px;
    color: var(--accent2);
}

/* INPUT OCULTO dentro del upload-area */
.file-hidden {
    display: none;
}

/* SCROLLBAR */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

/* RESPONSIVE */
@media (max-width: 1100px) {
    .generator-grid { grid-template-columns: 1fr; }
    .model-cards { grid-template-columns: 1fr; }
}

@media (max-width: 700px) {
    .sidebar { display: none; }
    .main { padding: 16px; }
}