/* Tile Match Playable Ad Studio & Editor CSS */
:root {
    --bg-dark: #0b0f19;
    --bg-panel: #111827;
    --bg-card: #1f293d;
    --bg-card-hover: #2d3b55;
    --border-color: rgba(255, 255, 255, 0.08);
    --accent-blue: #4f46e5;
    --accent-indigo: #6366f1;
    --accent-purple: #8b5cf6;
    --accent-emerald: #10b981;
    --accent-amber: #f59e0b;
    --accent-rose: #f43f5e;
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-body);
    height: 100vh;
    overflow: hidden;
    user-select: none;
}

#studio-app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Header Action Bar */
#studio-header {
    height: 64px;
    background: rgba(17, 24, 39, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    z-index: 100;
}

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

.brand-logo {
    font-size: 28px;
    filter: drop-shadow(0 0 8px rgba(99, 102, 241, 0.5));
}

.brand-titles h1 {
    font-family: var(--font-heading);
    font-size: 18px;
    font-weight: 700;
    background: linear-gradient(135deg, #ffffff 0%, #cbd5e1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-badge {
    font-size: 11px;
    font-weight: 600;
    color: #818cf8;
    background: rgba(99, 102, 241, 0.15);
    padding: 2px 8px;
    border-radius: 12px;
    border: 1px solid rgba(99, 102, 241, 0.3);
}

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

/* Main Studio Split Layout */
#studio-main {
    display: grid;
    grid-template-columns: 460px 1fr;
    flex: 1;
    height: calc(100vh - 64px);
    overflow: hidden;
}

/* Left Sidebar Controls */
#studio-sidebar {
    background: var(--bg-panel);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* Navigation Tabs */
.studio-tabs {
    display: flex;
    overflow-x: auto;
    background: rgba(0, 0, 0, 0.25);
    border-bottom: 1px solid var(--border-color);
    padding: 6px 8px 4px;
    gap: 4px;
    scrollbar-width: thin;
    scrollbar-color: #6366f1 rgba(0,0,0,0.3);
}

.studio-tabs::-webkit-scrollbar {
    height: 5px;
}

.studio-tabs::-webkit-scrollbar-track {
    background: rgba(0,0,0,0.2);
    border-radius: 3px;
}

.studio-tabs::-webkit-scrollbar-thumb {
    background: #6366f1;
    border-radius: 3px;
}

.tab-btn {
    flex-shrink: 0;
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-family: var(--font-body);
    font-size: 11.5px;
    font-weight: 600;
    padding: 7px 10px;
    border-radius: 6px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 5px;
    white-space: nowrap;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.05);
}

.tab-btn.active {
    color: #ffffff;
    background: var(--bg-card);
    border-bottom: 2px solid var(--accent-indigo);
}

/* Tab Panels Content */
.tab-contents {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
}

.tab-panel {
    display: none;
}

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

.section-title {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 700;
    color: #ffffff;
    margin-bottom: 6px;
}

.section-desc {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 18px;
    line-height: 1.4;
}

/* Form Controls */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    color: #e2e8f0;
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px 14px;
    color: #ffffff;
    font-family: var(--font-body);
    font-size: 13px;
    outline: none;
    transition: border-color 0.2s;
}

.form-input:focus {
    border-color: var(--accent-indigo);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

.form-help {
    display: block;
    font-size: 11px;
    color: var(--text-muted);
    margin-top: 6px;
}

.range-with-val {
    display: flex;
    align-items: center;
    gap: 12px;
}

.form-range {
    flex: 1;
    accent-color: var(--accent-indigo);
    cursor: pointer;
}

.range-badge {
    font-size: 12px;
    font-weight: 700;
    color: #818cf8;
    background: rgba(99, 102, 241, 0.15);
    padding: 4px 10px;
    border-radius: 6px;
    min-width: 60px;
    text-align: center;
}

/* Sprites Grid */
.sprites-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin-bottom: 16px;
}

.sprite-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    position: relative;
    transition: transform 0.2s, border-color 0.2s;
}

.sprite-card:hover {
    transform: translateY(-2px);
    border-color: rgba(255, 255, 255, 0.2);
}

.sprite-img {
    width: 44px;
    height: 44px;
    object-fit: contain;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

.sprite-label {
    font-size: 10px;
    color: var(--text-muted);
    font-weight: 600;
    text-align: center;
    word-break: break-word;
}

.sprite-remove-btn {
    position: absolute;
    top: -4px;
    right: -4px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: var(--accent-rose);
    color: white;
    border: none;
    font-size: 11px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* UI Assets List */
.ui-assets-list, .audio-assets-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.asset-card, .audio-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.asset-info, .audio-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.asset-name, .audio-name {
    font-size: 13px;
    font-weight: 600;
    color: #ffffff;
}

.asset-desc, .audio-desc {
    font-size: 11px;
    color: var(--text-muted);
}

.asset-preview-box, .audio-controls {
    display: flex;
    align-items: center;
    gap: 10px;
}

.asset-img-thumb {
    width: 36px;
    height: 36px;
    object-fit: contain;
    background: rgba(0,0,0,0.3);
    border-radius: 6px;
    padding: 4px;
}

/* Color Pickers */
.color-pickers-grid {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.color-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 10px 14px;
}

.color-item label {
    font-size: 12px;
    font-weight: 600;
    color: #e2e8f0;
}

.color-input-wrapper {
    display: flex;
    align-items: center;
    gap: 8px;
}

.color-input-wrapper input[type="color"] {
    -webkit-appearance: none;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 6px;
    cursor: pointer;
    background: transparent;
}

.color-input-wrapper input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

.color-input-wrapper input[type="color"]::-webkit-color-swatch {
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: 6px;
}

.color-text-val {
    width: 76px;
    background: rgba(0,0,0,0.3);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 6px;
    color: #ffffff;
    font-family: monospace;
    font-size: 11px;
    text-align: center;
}

/* MRAID Compliance List */
.compliance-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.check-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 12px;
    display: flex;
    gap: 12px;
    align-items: flex-start;
}

.check-icon {
    font-size: 18px;
}

.check-details strong {
    font-size: 13px;
    color: #ffffff;
    display: block;
    margin-bottom: 2px;
}

.check-details p {
    font-size: 11px;
    color: var(--text-muted);
    line-height: 1.4;
}

/* Center Preview Simulator Area */
#studio-preview-area {
    background: var(--bg-dark);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.preview-toolbar {
    height: 52px;
    background: rgba(17, 24, 39, 0.5);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
}

.device-controls, .test-controls {
    display: flex;
    align-items: center;
    gap: 8px;
}

.toolbar-label {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-muted);
    margin-right: 4px;
}

.simulator-viewport {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    overflow: hidden;
    background: radial-gradient(circle at 50% 50%, #171f30 0%, #090d16 100%);
}

/* Clean Viewport Frame */
.preview-frame {
    background: #55b2e8;
    border-radius: 12px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
    display: flex;
}

.preview-frame.mode-vertical {
    height: 94%;
    aspect-ratio: 9 / 16;
    max-width: 460px;
}

.preview-frame.mode-horizontal {
    width: 96%;
    height: 94%;
    max-width: 1280px;
}

.preview-frame iframe {
    width: 100%;
    height: 100%;
    border: none;
    background: #55b2e8;
}

/* Status Bar */
.studio-status-bar {
    height: 38px;
    background: var(--bg-panel);
    border-top: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 20px;
    font-size: 12px;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
}

.dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--accent-emerald);
    box-shadow: 0 0 8px var(--accent-emerald);
}

.size-meter {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
}

.size-tag {
    font-size: 10px;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: 4px;
}

.size-tag.green {
    background: rgba(16, 185, 129, 0.15);
    color: #34d399;
}

/* Buttons System */
.btn {
    font-family: var(--font-body);
    font-size: 13px;
    font-weight: 600;
    border-radius: 8px;
    padding: 8px 16px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s ease;
}

.btn-primary {
    background: #4f46e5;
    color: #ffffff;
    border-radius: 6px;
    font-weight: 600;
}

.btn-primary:hover {
    background: #4338ca;
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: #e2e8f0;
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.12);
    color: #ffffff;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 11px;
}

.btn-device.active {
    background: #4f46e5;
    color: #ffffff;
}

.btn-full {
    width: 100%;
}

.btn-file-input {
    cursor: pointer;
}

/* Modal Window */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal-overlay.hidden {
    display: none;
}

.modal-box {
    background: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 480px;
    padding: 24px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.9);
}

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

.modal-header h2 {
    font-family: var(--font-heading);
    font-size: 18px;
    color: #ffffff;
}

.btn-close-modal {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 24px;
    cursor: pointer;
}

.modal-body p {
    font-size: 13px;
    color: var(--text-muted);
    margin-bottom: 20px;
    line-height: 1.5;
}

.build-metrics-box {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 16px;
    margin-bottom: 24px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.metric {
    display: flex;
    justify-content: space-between;
    font-size: 12px;
}

.metric label {
    color: var(--text-muted);
}

.text-green {
    color: #34d399;
}