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

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --bg-dark: #0a0a0f;
    --bg-card: #12121a;
    --bg-card-hover: #1a1a25;
    --bg-input: #1e1e2d;
    --border: #2a2a3a;
    --text: #f1f1f1;
    --text-muted: #9ca3af;
    --gradient-1: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #d946ef 100%);
    --gradient-2: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%);
    --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
}

/* Sidebar */
.sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 260px;
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    z-index: 100;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    color: var(--text);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: var(--gradient-1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
}

.logo-text {
    font-weight: 700;
    font-size: 18px;
}

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

.sidebar-nav {
    flex: 1;
    padding: 16px 12px;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 20px;
}

.nav-section-title {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 0 12px;
    margin-bottom: 8px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
    margin-bottom: 4px;
    color: var(--text-muted);
    text-decoration: none;
}

.nav-item:hover {
    background: var(--bg-card-hover);
    color: var(--text);
}

.nav-item.active {
    background: var(--primary);
    color: white;
}

.nav-item-icon { font-size: 16px; }
.nav-item-text { font-size: 14px; font-weight: 500; }

.nav-item-badge {
    margin-left: auto;
    background: var(--primary);
    color: white;
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 10px;
    font-weight: 600;
}

.nav-item.active .nav-item-badge {
    background: rgba(255,255,255,0.2);
}

/* Main Content */
.main-content {
    margin-left: 260px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.header {
    background: var(--bg-card);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-title {
    font-size: 20px;
    font-weight: 600;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

.api-status {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    background: var(--bg-input);
    border-radius: 8px;
    font-size: 13px;
}

.api-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--danger);
}

.api-status-dot.connected {
    background: var(--success);
}

.settings-btn {
    width: 38px;
    height: 38px;
    border-radius: 8px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    color: var(--text);
    cursor: pointer;
    font-size: 16px;
    transition: all 0.2s;
}

.settings-btn:hover {
    background: var(--bg-card-hover);
    border-color: var(--primary);
}

/* Page Content */
.page-content {
    flex: 1;
    padding: 24px;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.section-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

/* Tool Card */
.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-1);
    opacity: 0;
    transition: opacity 0.3s;
}

.tool-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.tool-card:hover::before {
    opacity: 1;
}

.tool-card-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 14px;
}

.tool-card-icon.video { background: linear-gradient(135deg, #ef4444 0%, #f97316 100%); }
.tool-card-icon.transcribe { background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%); }
.tool-card-icon.translate { background: linear-gradient(135deg, #8b5cf6 0%, #d946ef 100%); }
.tool-card-icon.subtitle { background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%); }
.tool-card-icon.voice { background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%); }

.tool-card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 6px;
}

.tool-card-desc {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 14px;
    line-height: 1.5;
}

.tool-card-features {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.tool-feature-tag {
    font-size: 10px;
    padding: 3px 8px;
    background: var(--bg-input);
    border-radius: 5px;
    color: var(--text-muted);
}

/* Tool Pages */
.tool-page {
    display: none;
}

.tool-page.active {
    display: block;
}

.tool-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 24px;
}

.tool-header-icon {
    width: 56px;
    height: 56px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 28px;
}

.tool-header-icon.video { background: linear-gradient(135deg, #ef4444 0%, #f97316 100%); }
.tool-header-icon.transcribe { background: linear-gradient(135deg, #06b6d4 0%, #3b82f6 100%); }
.tool-header-icon.translate { background: linear-gradient(135deg, #8b5cf6 0%, #d946ef 100%); }
.tool-header-icon.subtitle { background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%); }
.tool-header-icon.voice { background: linear-gradient(135deg, #f59e0b 0%, #ef4444 100%); }

.tool-header-info h1 {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 4px;
}

.tool-header-info p {
    color: var(--text-muted);
    font-size: 14px;
}

.tool-content {
    display: grid;
    grid-template-columns: 1fr 320px;
    gap: 20px;
}

.tool-main {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 20px;
    min-height: 400px;
}

.tool-sidebar {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.tool-panel {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 16px;
}

.tool-panel-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 14px;
}

/* Forms */
.form-group {
    margin-bottom: 14px;
}

.form-label {
    display: block;
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 6px;
    color: var(--text-muted);
}

.form-input, .form-select, .form-textarea {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 14px;
    transition: all 0.2s;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    outline: none;
    border-color: var(--primary);
}

.form-textarea {
    min-height: 120px;
    resize: vertical;
}

/* Upload Zone */
.upload-zone {
    border: 2px dashed var(--border);
    border-radius: 12px;
    padding: 40px;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
}

.upload-zone:hover {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.05);
}

.upload-zone-icon {
    font-size: 40px;
    margin-bottom: 12px;
}

.upload-zone-title {
    font-size: 15px;
    font-weight: 600;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
}

.btn-primary {
    background: var(--gradient-1);
    color: white;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(99, 102, 241, 0.3);
}

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

.btn-secondary:hover {
    background: var(--bg-card-hover);
}

.btn-block {
    width: 100%;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* File Info */
.file-info {
    padding: 14px;
    background: var(--bg-input);
    border-radius: 10px;
    margin-top: 14px;
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Result Area */
.result-area {
    margin-top: 16px;
    padding: 16px;
    background: var(--bg-input);
    border-radius: 10px;
    display: none;
}

.result-area.active {
    display: block;
}

/* Translate Grid */
.translate-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Modal */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

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

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    width: 90%;
    max-width: 440px;
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.modal-title {
    font-size: 16px;
    font-weight: 600;
}

.modal-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: var(--bg-input);
    border: none;
    color: var(--text);
    cursor: pointer;
    font-size: 18px;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 14px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

/* Notification */
.notification {
    position: fixed;
    bottom: 20px;
    right: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 14px 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: var(--shadow);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s;
    z-index: 1001;
}

.notification.show {
    transform: translateY(0);
    opacity: 1;
}

.notification.success { border-color: var(--success); }
.notification.error { border-color: var(--danger); }

/* Spinner */
.spinner {
    width: 18px;
    height: 18px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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

/* Downloader Styles */

/* Platform Tabs */
.platform-tabs {
    display: flex;
    gap: 8px;
    padding: 0 24px;
    margin-bottom: 20px;
}

.platform-tab {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--bg-card);
    border: 2px solid transparent;
    border-radius: 12px;
    color: var(--text-muted);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.platform-tab:hover {
    background: var(--bg-input);
    color: var(--text-primary);
}

.platform-tab.active {
    background: var(--bg-card);
    border-color: var(--primary);
    color: var(--primary);
}

.platform-tab.active[data-platform="youtube"] {
    border-color: #ff0000;
    color: #ff0000;
}

.platform-tab.active[data-platform="tiktok"] {
    border-color: #00f2ea;
    color: #00f2ea;
}

.platform-tab.active[data-platform="facebook"] {
    border-color: #1877f2;
    color: #1877f2;
}

.tab-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.platform-tab[data-platform="youtube"] .tab-icon {
    fill: currentColor;
}

.platform-tab[data-platform="tiktok"] .tab-icon {
    fill: currentColor;
}

.platform-tab[data-platform="facebook"] .tab-icon {
    fill: currentColor;
}

/* Platform Panels */
.platform-panel {
    display: none;
}

.platform-panel.active {
    display: block;
}

/* Platform Header */
.platform-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
    font-size: 16px;
    font-weight: 600;
}

.platform-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    padding: 10px;
    border-radius: 12px;
}

.platform-logo svg {
    width: 24px;
    height: 24px;
}

.platform-logo.youtube {
    background: rgba(255, 0, 0, 0.1);
}

.platform-logo.tiktok {
    background: rgba(0, 0, 0, 0.1);
}

.platform-logo.facebook {
    background: rgba(24, 119, 242, 0.1);
}

.downloader-input-area {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 20px;
}

.url-input-group {
    display: flex;
    gap: 12px;
}

.url-input {
    flex: 1;
    font-size: 15px;
    padding: 14px 18px;
}

.video-info-card {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 20px;
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.video-info-thumbnail {
    position: relative;
    flex-shrink: 0;
    max-width: 220px;
    min-width: 120px;
}

.video-info-thumbnail img {
    width: 100%;
    height: auto;
    max-height: 400px;
    object-fit: contain;
    border-radius: 10px;
    background: var(--bg-input);
    display: block;
}

.video-platform-badge {
    position: absolute;
    top: 8px;
    left: 8px;
    background: var(--primary);
    color: white;
    padding: 4px 10px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
}

.video-info-details {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.video-info-details h3 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.video-info-details p {
    color: var(--text-muted);
    font-size: 13px;
    margin-bottom: 4px;
}

.btn-thumbnail-download {
    margin-top: 12px;
    padding: 8px 16px;
    background: linear-gradient(135deg, var(--primary), #8b5cf6);
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.btn-thumbnail-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.4);
}

.download-progress {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
}

.progress-bar-container {
    height: 8px;
    background: var(--bg-input);
    border-radius: 4px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-bar-fill {
    height: 100%;
    background: var(--gradient-1);
    border-radius: 4px;
    width: 0%;
    transition: width 0.3s;
}

.download-result {
    background: var(--bg-card);
    border-radius: 16px;
    padding: 24px;
    text-align: center;
}

.download-result .result-success {
    font-size: 18px;
    font-weight: 600;
    color: var(--success);
    margin-bottom: 16px;
}

.tool-card-icon.download {
    background: linear-gradient(135deg, #10b981 0%, #06b6d4 100%);
}

.nav-item-badge.new {
    background: var(--success);
}

/* ═══════════════════════════════════════════════
   USER DROPDOWN & HISTORY TABLE
   ═══════════════════════════════════════════════ */

.user-dropdown { position: relative; }
.user-dropdown-btn {
    display: flex; align-items: center; gap: 8px;
    background: rgba(99, 102, 241, 0.1); border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 10px; padding: 6px 12px; color: #e0e0e0;
    cursor: pointer; font-size: 13px; transition: all 0.2s;
}
.user-dropdown-btn:hover { background: rgba(99, 102, 241, 0.2); }
.user-avatar {
    width: 28px; height: 28px; border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #8b5cf6);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 13px; color: #fff;
}
.user-name { font-weight: 500; }
.user-role-badge {
    font-size: 10px; padding: 2px 6px; border-radius: 4px;
    font-weight: 600; text-transform: uppercase;
}
.user-role-badge.admin { background: rgba(245, 158, 11, 0.2); color: #f59e0b; }
.user-role-badge.user { background: rgba(99, 102, 241, 0.2); color: #818cf8; }
.dropdown-arrow { font-size: 10px; color: #666; }

.user-dropdown-menu {
    display: none; position: absolute; right: 0; top: calc(100% + 8px);
    background: #1a1a2e; border: 1px solid rgba(99, 102, 241, 0.2);
    border-radius: 12px; min-width: 200px; padding: 8px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.5); z-index: 1000;
}
.user-dropdown-menu.show { display: block; }
.user-dropdown-menu .dropdown-user-info {
    padding: 10px 12px; display: flex; flex-direction: column; gap: 2px;
}
.user-dropdown-menu .dropdown-user-info strong { color: #fff; font-size: 14px; }
.user-dropdown-menu .dropdown-user-info small { color: #888; font-size: 12px; }
.user-dropdown-menu hr { border: none; border-top: 1px solid rgba(255,255,255,0.06); margin: 4px 0; }
.user-dropdown-menu button {
    display: block; width: 100%; text-align: left; padding: 9px 12px;
    background: none; border: none; color: #ccc; font-size: 13px;
    cursor: pointer; border-radius: 8px; transition: background 0.15s;
}
.user-dropdown-menu button:hover { background: rgba(99, 102, 241, 0.15); color: #fff; }
.user-dropdown-menu .logout-btn:hover { background: rgba(239, 68, 68, 0.15); color: #f87171; }

/* History Table */
.history-table {
    width: 100%; border-collapse: collapse;
    background: rgba(17, 17, 34, 0.6); border-radius: 12px; overflow: hidden;
    border: 1px solid rgba(99, 102, 241, 0.1);
}
.history-table th {
    padding: 12px 16px; text-align: left; font-size: 12px;
    font-weight: 600; color: #888; text-transform: uppercase;
    background: rgba(99, 102, 241, 0.05); border-bottom: 1px solid rgba(255,255,255,0.05);
}
.history-table td {
    padding: 12px 16px; font-size: 13px; color: #ccc;
    border-bottom: 1px solid rgba(255,255,255,0.03);
}
.history-table tr:hover td { background: rgba(99, 102, 241, 0.05); }
.history-table .tool-icon { font-size: 18px; }
.history-table .status-badge {
    display: inline-block; padding: 3px 10px; border-radius: 20px;
    font-size: 11px; font-weight: 600;
}
.status-badge.completed { background: rgba(16, 185, 129, 0.15); color: #10b981; }
.status-badge.processing { background: rgba(99, 102, 241, 0.15); color: #818cf8; }
.status-badge.failed { background: rgba(239, 68, 68, 0.15); color: #f87171; }
.status-badge.pending { background: rgba(245, 158, 11, 0.15); color: #f59e0b; }
.history-title-cell {
    max-width: 220px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.history-type-cell {
    width: 60px;
    text-align: center;
}
.history-thumb {
    width: 48px;
    height: 48px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid rgba(255,255,255,0.08);
    vertical-align: middle;
}
.history-type-label {
    display: inline-block;
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 11px;
    font-weight: 600;
    background: rgba(99,102,241,0.12);
    color: #818cf8;
    text-transform: capitalize;
}
.history-dl-btn {
    background: rgba(16,185,129,0.12);
    color: #10b981;
    border: none;
    border-radius: 8px;
    padding: 5px 12px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
    white-space: nowrap;
}
.history-dl-btn:hover {
    background: rgba(16,185,129,0.25);
}
.history-actions button {
    background: none; border: none; cursor: pointer; font-size: 16px;
    padding: 4px 6px; border-radius: 6px; transition: background 0.15s;
}
.history-actions button:hover { background: rgba(255,255,255,0.1); }

/* ═══════════════════════════════════════════════
   RESPONSIVE — Laptop / Tablet / Mobile
   ═══════════════════════════════════════════════ */

/* Hamburger menu button (hidden on desktop) */
.sidebar-toggle {
    display: none;
    position: fixed;
    top: 12px;
    left: 12px;
    z-index: 200;
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 20px;
    cursor: pointer;
    align-items: center;
    justify-content: center;
}

/* Sidebar overlay backdrop (mobile) */
.sidebar-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 90;
}
.sidebar-backdrop.active { display: block; }

/* ── Laptop (≤1366px) — Slim sidebar ── */
@media (max-width: 1366px) {
    .sidebar { width: 220px; }
    .main-content { margin-left: 220px; }
    .nav-item { padding: 9px 12px; }
    .nav-item-text { font-size: 13px; }
    .page-content { padding: 20px; }
    .tool-content { grid-template-columns: 1fr 280px; }
}

/* ── Tablet (≤1024px) — Sidebar collapses, single column ── */
@media (max-width: 1024px) {
    .sidebar-toggle { display: flex; }

    .sidebar {
        width: 260px;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
        z-index: 100;
    }
    .sidebar.open { transform: translateX(0); }

    .main-content { margin-left: 0; }

    .header {
        padding-left: 60px; /* room for hamburger */
    }

    .tool-content {
        grid-template-columns: 1fr;
    }

    .tool-header-info h1 { font-size: 20px; }

    .platform-tabs {
        padding: 0 16px;
        flex-wrap: wrap;
    }
    .platform-tab {
        padding: 10px 16px;
        font-size: 13px;
    }

    .video-info-card {
        flex-direction: column;
    }
    .video-info-thumbnail {
        width: 100%;
        max-width: 300px;
        max-height: none;
    }

    .url-input-group {
        flex-direction: column;
    }
    .url-input-group .btn {
        width: 100%;
    }
}

/* ── Small Tablet / Large Phone (≤768px) ── */
@media (max-width: 768px) {
    .header { padding: 12px 16px 12px 56px; }
    .header-title { font-size: 16px; }
    .api-status { display: none; }

    .page-content { padding: 14px; }

    .dashboard-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .tool-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }
    .tool-header-icon { width: 44px; height: 44px; font-size: 22px; }
    .tool-header-info h1 { font-size: 18px; }

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

    .upload-zone { padding: 24px 16px; }
    .upload-zone-icon { font-size: 32px; }

    .tool-panel { padding: 12px; }

    .platform-tabs { gap: 6px; }
    .platform-tab {
        padding: 8px 12px;
        font-size: 12px;
        border-radius: 8px;
    }

    .downloader-input-area { padding: 16px; }

    .modal { width: 95%; max-width: 400px; }
}

/* ── Phone (≤480px) ── */
@media (max-width: 480px) {
    .header { padding: 10px 12px 10px 52px; }
    .header-title { font-size: 15px; }
    .settings-btn { width: 34px; height: 34px; font-size: 14px; }

    .page-content { padding: 10px; }

    .dashboard-grid { gap: 10px; }
    .tool-card { padding: 14px; }
    .tool-card-icon { width: 40px; height: 40px; font-size: 20px; }
    .tool-card-title { font-size: 14px; }
    .tool-card-desc { font-size: 12px; }

    .btn { padding: 8px 14px; font-size: 13px; }

    .form-input, .form-select { padding: 8px 12px; font-size: 13px; }

    .platform-tab { padding: 6px 10px; font-size: 11px; gap: 4px; }
    .tab-icon { width: 16px; height: 16px; }
}

/* Resizable Overlay Styles */
.resizable-overlay {
    user-select: none;
}

.resizable-overlay:hover {
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.3), 0 4px 12px rgba(0, 0, 0, 0.4);
}

.resize-handle {
    position: absolute;
    width: 12px;
    height: 12px;
    background: #fff;
    border: 2px solid var(--primary);
    border-radius: 50%;
    z-index: 10;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    transition: transform 0.15s ease, background 0.15s ease;
}

.resize-handle:hover {
    transform: scale(1.3);
    background: var(--primary);
}

.resize-handle-nw {
    top: -6px;
    left: -6px;
    cursor: nw-resize;
}

.resize-handle-ne {
    top: -6px;
    right: -6px;
    cursor: ne-resize;
}

.resize-handle-sw {
    bottom: -6px;
    left: -6px;
    cursor: sw-resize;
}

.resize-handle-se {
    bottom: -6px;
    right: -6px;
    cursor: se-resize;
}