:root {
    --bg-dark: #0f1115;
    --bg-card: #181a20;
    --bg-card-alt: #1e2128;
    --bg-input: #14161b;
    --border-color: #272a33;
    --border-hover: #3b404d;
    --text-main: #f3f4f6;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;
    --accent-blue: #3b82f6;
    --accent-blue-hover: #2563eb;
    --accent-indigo: #6366f1;
    --accent-green: #10b981;
    --accent-red: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.12);
    --danger-border: #7f1d1d;
    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

header {
    background: #121419;
    border-bottom: 1px solid var(--border-color);
    padding: 12px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand-logo {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: -0.5px;
    color: #fff;
    cursor: pointer;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nav-pill-group {
    background: #191c23;
    border: 1px solid var(--border-color);
    border-radius: 9999px;
    padding: 4px;
    display: flex;
    gap: 2px;
}

.nav-pill {
    padding: 7px 18px;
    border-radius: 9999px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
}

.nav-pill.active, .nav-pill:hover {
    background: #272b35;
    color: #fff;
}

.nav-pill.active {
    font-weight: 600;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 14px;
}

.lang-toggle {
    background: transparent;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 12px;
    color: var(--text-secondary);
    cursor: pointer;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.15s ease;
    text-decoration: none;
}

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

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

.btn-secondary {
    background: #252932;
    color: var(--text-main);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background: #2f3440;
}

.btn-outline {
    background: transparent;
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.btn-outline:hover {
    color: #fff;
    border-color: var(--text-secondary);
}

.btn-danger {
    background: var(--danger-bg);
    border-color: var(--danger-border);
    color: var(--accent-red);
}

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

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

main {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 24px;
}

.tab-pane {
    display: none;
}

.tab-pane.active {
    display: block;
}

.page-title {
    font-size: 26px;
    font-weight: 700;
    margin-bottom: 24px;
    letter-spacing: -0.5px;
}

.stats-grid-top {
    display: grid;
    grid-template-columns: 1.2fr 1fr 1.3fr 1.5fr;
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.stat-card.tokens-highlight {
    background: linear-gradient(135deg, #181d28 0%, #151a24 100%);
    border-color: #2b3548;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.stat-num-large {
    font-size: 32px;
    font-weight: 800;
    color: #fff;
    letter-spacing: -0.5px;
    margin-bottom: 12px;
}

.btn-token-topup {
    background: #2b3b5c;
    color: #93c5fd;
    border: 1px solid #3b82f644;
    padding: 7px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    width: fit-content;
    transition: all 0.15s;
}

.btn-token-topup:hover {
    background: #3b82f6;
    color: #fff;
}

.card-action-links {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.btn-block-link {
    background: #232731;
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    text-decoration: none;
}

.btn-block-link:hover {
    background: #2d323f;
}

.two-btn-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
}

.two-cols-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
}

.chart-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    margin-bottom: 16px;
}

.chart-title {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
}

.chart-subtitle {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 2px;
}

.chart-sum {
    font-size: 24px;
    font-weight: 800;
    color: #fff;
    margin-top: 8px;
}

.chart-box-container {
    position: relative;
    height: 240px;
    width: 100%;
    margin-top: 16px;
}

canvas#tokenChart {
    width: 100%;
    height: 100%;
    display: block;
}

.chart-tooltip {
    position: absolute;
    background: #232732;
    border: 1px solid #3b4252;
    border-radius: 8px;
    padding: 8px 12px;
    font-size: 12px;
    color: #fff;
    pointer-events: none;
    display: none;
    box-shadow: 0 8px 24px rgba(0,0,0,0.5);
    z-index: 10;
    transform: translate(-50%, -120%);
}

.chart-guide-line {
    position: absolute;
    top: 0;
    bottom: 0;
    width: 1px;
    background: rgba(99, 102, 241, 0.4);
    border-right: 1px dashed rgba(255, 255, 255, 0.3);
    pointer-events: none;
    display: none;
}

.multipliers-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.multipliers-header {
    margin-bottom: 16px;
}

.multipliers-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px 24px;
    font-size: 13px;
}

.category-title {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.model-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.model-name-sub {
    color: #fff;
    font-weight: 500;
}

.model-desc-sub {
    font-size: 11px;
    color: var(--text-muted);
}

.multiplier-tag {
    font-weight: 700;
    color: #93c5fd;
    font-family: monospace;
}

.multipliers-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 20px;
    padding-top: 14px;
    border-top: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
}

.logs-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
}

.table-responsive {
    overflow-x: auto;
    margin-top: 14px;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
    text-align: left;
}

th {
    padding: 10px 14px;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
}

td {
    padding: 12px 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    color: var(--text-main);
}

.key-tag {
    background: #121418;
    border: 1px solid var(--border-color);
    padding: 3px 7px;
    border-radius: 4px;
    font-family: monospace;
    font-size: 12px;
    color: #93c5fd;
}

.alert-banner-danger {
    background: var(--danger-bg);
    border: 1px solid var(--danger-border);
    border-radius: var(--radius-sm);
    padding: 14px 18px;
    color: #fca5a5;
    font-size: 14px;
    font-weight: 500;
    margin-bottom: 24px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.instructions-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 24px;
}

.instruction-step {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    margin-bottom: 16px;
}

.step-num-title {
    font-size: 15px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 14px;
}

.app-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    gap: 10px;
}

.app-item-btn {
    background: #20242d;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 12px 8px;
    text-align: center;
    cursor: pointer;
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: all 0.15s;
}

.app-item-btn.active, .app-item-btn:hover {
    border-color: var(--accent-blue);
    color: #fff;
    background: #272c37;
}

.code-terminal-block {
    background: #111317;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 14px;
    font-family: monospace;
    font-size: 13px;
    color: #e2e8f0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    word-break: break-all;
    margin-top: 10px;
}

.provider-info-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.provider-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 8px;
}

.provider-field {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.field-label {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
}

.field-val-row {
    background: #111317;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-family: monospace;
    font-size: 12px;
    color: #fff;
}

.btn-copy-icon {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
    padding: 2px 6px;
}

.btn-copy-icon:hover {
    color: #fff;
}

.image-studio-layout {
    display: grid;
    grid-template-columns: 240px 1fr 280px;
    gap: 20px;
    height: 700px;
}

.studio-sidebar {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.studio-stage {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.studio-canvas {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    color: var(--text-secondary);
    font-size: 26px;
    font-weight: 700;
}

.studio-input-bar {
    padding: 16px;
    background: #121418;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 10px;
    align-items: center;
}

.studio-model-selector {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.model-radio-card {
    background: #121418;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px;
    cursor: pointer;
    transition: all 0.15s;
}

.model-radio-card.active, .model-radio-card:hover {
    border-color: var(--accent-blue);
    background: #1a202c;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-bottom: 16px;
}

.form-label {
    font-size: 13px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-control {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: var(--text-main);
    font-size: 14px;
    outline: none;
}

.form-control:focus {
    border-color: var(--accent-blue);
}

.custom-modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.custom-modal-backdrop.active {
    display: flex;
}

.custom-modal {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    width: 100%;
    max-width: 440px;
    padding: 28px;
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.6);
}

.custom-modal-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #fff;
}

.custom-modal-text {
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 20px;
}

.custom-modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
}

.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    z-index: 2000;
}

.custom-toast {
    background: #1a1d24;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 12px 18px;
    font-size: 14px;
    color: #fff;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    gap: 10px;
}

.custom-toast.success { border-left: 4px solid var(--accent-green); }
.custom-toast.error { border-left: 4px solid var(--accent-red); }
.custom-toast.info { border-left: 4px solid var(--accent-blue); }

.chat-layout {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: 20px;
    height: 720px;
}

.chat-sidebar {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.chat-history-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.chat-history-item {
    background: #14161b;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 12px;
    font-size: 13px;
    color: var(--text-secondary);
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: all 0.15s;
}

.chat-history-item.active, .chat-history-item:hover {
    border-color: var(--accent-blue);
    color: #fff;
    background: #1c202a;
}

.chat-main-area {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.chat-header-bar {
    padding: 14px 20px;
    background: #121418;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.chat-model-badge {
    background: #1e2430;
    border: 1px solid #3b82f644;
    color: #93c5fd;
    padding: 4px 10px;
    border-radius: 9999px;
    font-size: 12px;
    font-weight: 600;
}

.chat-messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 18px;
}

.chat-message-row {
    display: flex;
    gap: 12px;
    max-width: 85%;
}

.chat-message-row.user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.chat-message-row.assistant {
    align-self: flex-start;
}

.chat-avatar {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
}

.chat-avatar.user {
    background: #2563eb;
    color: #fff;
}

.chat-avatar.assistant {
    background: #1f2937;
    border: 1px solid var(--border-color);
    color: #93c5fd;
}

.chat-message-content {
    background: #14161c;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 18px;
    font-size: 14px;
    line-height: 1.6;
    color: #e5e7eb;
    word-break: break-word;
}

.chat-message-row.user .chat-message-content {
    background: #1e293b;
    border-color: #3b82f644;
    color: #fff;
}

.chat-input-container {
    padding: 16px 20px;
    background: #121418;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.chat-input-box {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.chat-textarea {
    flex: 1;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    padding: 10px 14px;
    color: #fff;
    font-size: 14px;
    outline: none;
    resize: none;
    height: 48px;
    min-height: 48px;
    max-height: 140px;
}

.chat-textarea:focus {
    border-color: var(--accent-blue);
}

@media (max-width: 1100px) {
    .stats-grid-top { grid-template-columns: 1fr 1fr; }
    .two-cols-layout { grid-template-columns: 1fr; }
    .instructions-layout { grid-template-columns: 1fr; }
    .image-studio-layout { grid-template-columns: 1fr; height: auto; }
    .chat-layout { grid-template-columns: 1fr; height: auto; }
}

.admin-nav-bar {
    display: flex;
    gap: 6px;
    background: #14171e;
    border: 1px solid var(--border-color);
    padding: 6px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    overflow-x: auto;
}

.admin-nav-item {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    padding: 8px 16px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.admin-nav-item:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.05);
}

.admin-nav-item.active {
    background: #2563eb;
    color: #fff;
    font-weight: 600;
}

.adm-subtab {
    display: none;
}

.adm-subtab.active {
    display: block;
}

.udt-pane {
    display: none;
}

.udt-pane.active {
    display: block;
}

.table-input {
    width: 80px;
    background: #0f1115;
    border: 1px solid var(--border-color);
    color: #fff;
    padding: 5px 8px;
    border-radius: 6px;
    font-size: 13px;
    text-align: center;
}

.table-input:focus {
    border-color: #3b82f6;
    outline: none;
}

.table-input:disabled {
    background: rgba(255, 255, 255, 0.03);
    border-color: rgba(255, 255, 255, 0.08);
    color: var(--text-muted);
    cursor: not-allowed;
    opacity: 0.7;
}

.badge {
    display: inline-block;
    padding: 3px 8px;
    border-radius: 9999px;
    font-size: 11px;
    font-weight: 600;
}

.badge-success {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-danger {
    background: rgba(239, 68, 68, 0.15);
    color: #f87171;
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge-warning {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-info {
    background: rgba(59, 130, 246, 0.15);
    color: #93c5fd;
    border: 1px solid rgba(59, 130, 246, 0.3);
}

.model-progress-item {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 10px 12px;
    border-radius: 8px;
}

.model-progress-bar-bg {
    width: 100%;
    height: 6px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: 3px;
    margin-top: 6px;
    overflow: hidden;
}

.model-progress-bar-fill {
    height: 100%;
    background: linear-gradient(90deg, #3b82f6, #8b5cf6);
    border-radius: 3px;
}

.test-status-card {
    padding: 14px;
    border-radius: 8px;
    margin-top: 10px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.test-status-card.success {
    background: rgba(16, 185, 129, 0.1);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.test-status-card.error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.inst-top-nav {
    display: flex;
    gap: 8px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 4px;
    margin-bottom: 24px;
    width: fit-content;
}

.inst-top-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 600;
    padding: 8px 16px;
    border-radius: 7px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.inst-top-btn:hover {
    color: #fff;
}

.inst-top-btn.active {
    background: #2563eb;
    color: #fff;
}

.inst-step-label {
    color: #fff;
    font-size: 14px;
    font-weight: 700;
    margin: 20px 0 10px 0;
}

.inst-provider-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 12px;
}

.inst-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 18px;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 14px;
    user-select: none;
}

.inst-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.16);
}

.inst-card.active {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.08);
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.35);
}

.inst-card-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.04);
}

.inst-card-title {
    color: #fff;
    font-weight: 700;
    font-size: 14px;
    line-height: 1.2;
}

.inst-card-desc {
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 4px;
    line-height: 1.3;
}

.inst-programs-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.inst-prog-btn {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px 14px;
    color: var(--text-muted);
    font-size: 12.5px;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: 85px;
    flex: 1 1 85px;
    max-width: 120px;
    transition: all 0.2s ease;
    user-select: none;
}

.inst-prog-btn:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.16);
    color: #fff;
}

.inst-prog-btn.active {
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.09);
    color: #fff;
    box-shadow: 0 0 0 1px rgba(59, 130, 246, 0.35);
}

.inst-prog-icon {
    font-size: 18px;
}

.inst-os-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
    gap: 10px;
}

.inst-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 22px;
    margin-top: 24px;
}

.inst-box-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 12px;
}

.inst-box-title {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
}

.inst-subnav {
    display: flex;
    gap: 18px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    margin-bottom: 18px;
}

.inst-subnav-btn {
    background: none;
    border: none;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px 4px;
    transition: color 0.2s ease;
    position: relative;
}

.inst-subnav-btn:hover {
    color: #fff;
}

.inst-subnav-btn.active {
    color: #38bdf8;
}

.inst-subnav-btn.active::after {
    content: '';
    position: absolute;
    bottom: -11px;
    left: 0;
    right: 0;
    height: 2px;
    background: #38bdf8;
    border-radius: 2px;
}

.inst-step-row {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
    font-size: 13px;
    color: #e6edf3;
}

.inst-step-num {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #0284c7;
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    font-weight: 700;
    flex-shrink: 0;
}

.inst-cmd-box {
    background: #090c10;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    padding: 12px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 14px 0;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 13px;
    color: #f0f6fc;
    word-break: break-all;
}

.inst-cmd-text {
    flex: 1;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

.inst-copy-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    color: #94a3b8;
    cursor: pointer;
    padding: 6px 10px;
    font-size: 15px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: all 0.2s ease;
}

.inst-copy-btn:hover {
    color: #fff;
    border-color: #3b82f6;
    background: rgba(59, 130, 246, 0.15);
}

.inst-accordion {
    background: #090c10;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 8px;
    margin-top: 14px;
    overflow: hidden;
}

.inst-accordion-header {
    padding: 12px 16px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 600;
    user-select: none;
    transition: background 0.2s ease;
}

.inst-accordion-header:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.02);
}

.inst-accordion-arrow {
    transition: transform 0.2s ease;
    font-size: 11px;
}

.inst-accordion.open .inst-accordion-arrow {
    transform: rotate(180deg);
}

.inst-accordion-body {
    display: none;
    padding: 14px 16px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    position: relative;
}

.inst-accordion.open .inst-accordion-body {
    display: block;
}

.inst-accordion-pre {
    margin: 0;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 12px;
    line-height: 1.45;
    color: #94a3b8;
    max-height: 380px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.inst-info-callout {
    background: rgba(14, 116, 144, 0.15);
    border: 1px solid rgba(14, 116, 144, 0.35);
    border-radius: 8px;
    padding: 12px 16px;
    color: #38bdf8;
    font-size: 13px;
    margin-top: 16px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.inst-editor-window {
    background: #090c10;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 10px;
    overflow: hidden;
    margin: 16px 0;
}

.inst-editor-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.03);
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.inst-editor-dots {
    display: flex;
    gap: 6px;
}

.inst-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.inst-dot-red {
    background: #ef4444;
}

.inst-dot-yellow {
    background: #f59e0b;
}

.inst-dot-green {
    background: #10b981;
}

.inst-editor-pre {
    padding: 16px;
    margin: 0;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 12px;
    line-height: 1.5;
    color: #e6edf3;
    max-height: 480px;
    overflow-y: auto;
    white-space: pre-wrap;
    word-break: break-word;
}

.inst-grid-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 380px;
    gap: 24px;
    align-items: start;
    margin-top: 10px;
}

.inst-main-col {
    min-width: 0;
}

.inst-sidebar-col {
    display: flex;
    flex-direction: column;
    gap: 18px;
    position: sticky;
    top: 80px;
}

.inst-side-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 14px;
    padding: 20px;
}

.inst-side-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.inst-side-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #3b82f6);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    color: #fff;
    flex-shrink: 0;
    box-shadow: 0 0 15px rgba(99, 102, 241, 0.4);
}

.inst-side-title {
    color: #fff;
    font-size: 15px;
    font-weight: 700;
}

.inst-side-sub {
    color: var(--text-muted);
    font-size: 12px;
    margin-top: 2px;
    line-height: 1.4;
}

.inst-side-rows {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.inst-side-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    padding: 7px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.inst-side-label {
    color: var(--text-muted);
    font-size: 12px;
    flex-shrink: 0;
    width: 120px;
}

.inst-side-val {
    color: #e2e8f0;
    font-family: 'Consolas', 'Courier New', monospace;
    font-size: 12px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
    text-align: left;
}

.inst-side-copy-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 4px;
    font-size: 13px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s ease;
    border-radius: 4px;
    flex-shrink: 0;
}

.inst-side-copy-btn:hover {
    color: #38bdf8;
    background: rgba(56, 189, 248, 0.1);
}

.inst-side-copy-all {
    width: 100%;
    margin-top: 14px;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 9px;
    font-size: 13px;
    font-weight: 600;
    color: #f1f5f9;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.inst-side-copy-all:hover {
    background: rgba(56, 189, 248, 0.15);
    border-color: #38bdf8;
    color: #38bdf8;
}

.inst-models-group-title {
    font-size: 12px;
    font-weight: 700;
    color: #94a3b8;
    display: flex;
    align-items: center;
    gap: 6px;
    margin: 14px 0 8px 0;
}

.inst-models-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.inst-model-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 8px;
    padding: 6px 10px;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.04);
    border-radius: 6px;
    font-size: 12px;
}

.inst-model-name {
    color: #e2e8f0;
    font-family: 'Consolas', monospace;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    flex: 1;
}

.inst-model-badges {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-shrink: 0;
}

.badge-bench-green {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
    font-weight: 700;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
}

.badge-bench-yellow {
    background: rgba(245, 158, 11, 0.15);
    color: #fbbf24;
    font-weight: 700;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
}

.badge-bench-gray {
    background: rgba(148, 163, 184, 0.15);
    color: #94a3b8;
    font-weight: 700;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 4px;
}

.badge-bench-mult {
    color: #94a3b8;
    font-weight: 600;
    font-size: 11px;
    font-family: 'Consolas', monospace;
}

.faq-section {
    margin-top: 24px;
}

.faq-title {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
}

.faq-card {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    margin-bottom: 10px;
    overflow: hidden;
}

.faq-header {
    padding: 14px 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    font-weight: 600;
    color: #f1f5f9;
    user-select: none;
    transition: background 0.2s ease;
}

.faq-header:hover {
    background: rgba(255, 255, 255, 0.03);
    color: #38bdf8;
}

.faq-arrow {
    transition: transform 0.2s ease;
    font-size: 11px;
    color: var(--text-muted);
}

.faq-card.open .faq-arrow {
    transform: rotate(180deg);
}

.faq-body {
    display: none;
    padding: 0 18px 16px 18px;
    color: var(--text-muted);
    font-size: 13px;
    line-height: 1.6;
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    padding-top: 12px;
}

.faq-card.open .faq-body {
    display: block;
}

@media (max-width: 1100px) {
    .inst-grid-layout {
        grid-template-columns: 1fr;
    }
    .inst-sidebar-col {
        position: static;
    }
}