/* ═══════════════════════════════════════════════════════════
   YouTube Banner Maker — Page-Specific Styles
   Studio layout: wide container, canvas-dominant, sidebar controls
   ═══════════════════════════════════════════════════════════ */

/* ── Override tool-workspace padding for studio layout ──── */
.banner-maker-page .tool-workspace {
    padding: 0;
    overflow: hidden;
}

/* ── Social proof ──────────────────────────────────────── */
.bm-social-proof {
    font-size: var(--font-size-sm);
    color: var(--color-gray-500);
    margin-top: var(--space-3);
}
.bm-social-proof i {
    color: var(--color-primary);
    margin-right: var(--space-1);
}

/* ── Studio Layout (wider than standard page-container) ── */
.bm-studio {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-4);
}
.bm-studio__main {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: var(--space-5);
    align-items: start;
    padding: var(--space-5);
}

/* ── Preset Row (horizontal scrollable) ────────────────── */
.bm-presets {
    padding: var(--space-4) var(--space-5) 0;
}
.bm-presets__grid {
    display: flex;
    gap: var(--space-2);
    overflow-x: auto;
    padding-bottom: var(--space-2);
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}
.bm-presets__grid::-webkit-scrollbar { height: 4px; }
.bm-presets__grid::-webkit-scrollbar-thumb { background: var(--color-gray-300); border-radius: 2px; }

.bm-preset {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-2);
    border: 2px solid var(--color-gray-200);
    border-radius: var(--radius-lg, 12px);
    background: var(--color-white, #fff);
    cursor: pointer;
    transition: all 150ms ease;
    flex-shrink: 0;
    min-width: 72px;
}
.bm-preset:hover {
    border-color: var(--color-primary);
    transform: translateY(-1px);
}
.bm-preset--active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}
.bm-preset__swatch {
    width: 56px;
    height: 32px;
    border-radius: var(--radius-md, 8px);
    display: block;
}
.bm-preset__name {
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-gray-700);
    white-space: nowrap;
}

/* ── Canvas Area ───────────────────────────────────────── */
.bm-canvas-area {
    min-width: 0;
}
.bm-canvas-container {
    position: relative;
    width: 100%;
    aspect-ratio: 2560 / 1440;
    border-radius: var(--radius-lg, 12px);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    background: var(--color-gray-900);
}
.bm-canvas-container canvas {
    width: 100%;
    height: 100%;
    display: block;
}

/* Safe zone overlay */
.bm-safe-zone-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    pointer-events: none;
    opacity: 0;
    transition: opacity 200ms ease;
}
.bm-safe-zone-overlay.bm-safe-zone--visible {
    opacity: 1;
}
.bm-safe-zone-overlay.bm-safe-zone--visible::before {
    content: '';
    position: absolute;
    left: 19.8%; top: 35.3%; width: 60.4%; height: 29.4%;
    border: 2px dashed rgba(79, 70, 229, 0.8);
    border-radius: 4px;
    box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.35);
    z-index: 2;
}
.bm-safe-zone-overlay.bm-safe-zone--visible::after {
    content: 'Safe Zone (visible on all devices)';
    position: absolute;
    left: 50%; top: calc(35.3% - 22px);
    transform: translateX(-50%);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-white, #fff);
    background: var(--color-primary);
    padding: 2px 10px;
    border-radius: 4px;
    white-space: nowrap;
    z-index: 3;
}

/* ── Canvas Toolbar ────────────────────────────────────── */
.bm-canvas-toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-3);
    gap: var(--space-3);
}
.bm-toolbar-left,
.bm-toolbar-right {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}
.bm-toolbar-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    cursor: pointer;
    user-select: none;
}
.bm-toolbar-toggle input {
    accent-color: var(--color-primary);
}
.bm-toolbar-toggle i {
    color: var(--color-primary);
}
.bm-toolbar-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md, 8px);
    background: var(--color-white, #fff);
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all 150ms ease;
    font-size: var(--font-size-sm);
}
.bm-toolbar-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-1px);
}
.bm-toolbar-btn:disabled {
    opacity: 0.35;
    cursor: not-allowed;
    transform: none;
}
.bm-toolbar-btn:disabled:hover {
    border-color: var(--color-gray-300);
    color: var(--color-gray-600);
}

/* ── Device Preview Strip ──────────────────────────────── */
.bm-device-strip {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-3);
    padding: var(--space-4) var(--space-5) var(--space-5);
}
.bm-device-thumb {
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-md, 8px);
    overflow: hidden;
    background: var(--color-gray-100);
    transition: all 150ms ease;
}
.bm-device-thumb:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
}
.bm-device-thumb__label {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    font-size: var(--font-size-xs);
    font-weight: 600;
    color: var(--color-gray-600);
    background: var(--color-white, #fff);
    border-bottom: 1px solid var(--color-gray-100);
}
.bm-device-thumb__label i {
    color: var(--color-primary);
    font-size: 12px;
}
.bm-device-thumb canvas {
    width: 100%;
    display: block;
}

/* ── Controls Sidebar ──────────────────────────────────── */
.bm-sidebar {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-height: 80vh;
    overflow-y: auto;
    scrollbar-width: thin;
    padding-right: 2px;
}
.bm-sidebar::-webkit-scrollbar { width: 4px; }
.bm-sidebar::-webkit-scrollbar-thumb { background: var(--color-gray-300); border-radius: 2px; }

/* ── Accordion Sections ────────────────────────────────── */
.bm-section {
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg, 12px);
    background: var(--color-white, #fff);
    overflow: hidden;
}
.bm-section > summary {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--color-gray-700);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    cursor: pointer;
    user-select: none;
    list-style: none;
    transition: background 150ms ease;
}
.bm-section > summary::-webkit-details-marker { display: none; }
.bm-section > summary::after {
    content: '\f078';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: 12px;
    color: var(--color-gray-400);
    margin-left: auto;
    transition: transform 200ms ease;
}
.bm-section[open] > summary::after {
    transform: rotate(180deg);
}
.bm-section > summary:hover {
    background: var(--color-gray-50, #f8fafc);
}
.bm-section__body {
    padding: 0 var(--space-4) var(--space-4);
}

/* ── Background Controls ───────────────────────────────── */
.bm-bg-type-row {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
}
.bm-bg-type {
    flex: 1;
    padding: var(--space-2);
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md, 8px);
    background: var(--color-white, #fff);
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--color-gray-600);
    cursor: pointer;
    transition: all 150ms ease;
    text-align: center;
}
.bm-bg-type:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
}
.bm-bg-type--active {
    border-color: var(--color-primary);
    background: rgba(79, 70, 229, 0.08);
    color: var(--color-primary);
}
.bm-bg-options--hidden { display: none; }

.bm-color-row {
    display: flex;
    gap: var(--space-3);
}
.bm-color-field { flex: 1; }
.bm-color-input {
    width: 100%;
    height: 36px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md, 8px);
    padding: 2px;
    cursor: pointer;
    background: var(--color-white, #fff);
    transition: border-color 150ms ease;
}
.bm-color-input:hover {
    border-color: var(--color-primary);
}

/* Upload zone */
.bm-upload-zone {
    border: 2px dashed var(--color-gray-300);
    border-radius: var(--radius-lg, 12px);
    padding: var(--space-4);
    text-align: center;
    cursor: pointer;
    transition: all 200ms ease;
    position: relative;
    color: var(--color-gray-500);
}
.bm-upload-zone:hover,
.bm-upload-zone--dragover {
    border-color: var(--color-primary);
    background: rgba(79, 70, 229, 0.04);
}
.bm-upload-zone--dragover {
    border-style: solid;
    background: rgba(79, 70, 229, 0.08);
}
.bm-upload-zone i {
    font-size: 24px;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
    display: block;
}
.bm-upload-zone p {
    font-size: var(--font-size-sm);
    font-weight: 600;
    margin-bottom: var(--space-1);
}
.bm-upload-hint {
    font-size: var(--font-size-xs);
    color: var(--color-gray-400);
}
.bm-upload-input {
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    opacity: 0;
    cursor: pointer;
}

/* ── Text Controls ─────────────────────────────────────── */
.bm-size-color-row {
    display: flex;
    gap: var(--space-3);
    align-items: flex-start;
}
.bm-size-field { flex: 2; }
.bm-range {
    width: 100%;
    accent-color: var(--color-primary);
}
.bm-range-value {
    font-size: var(--font-size-xs);
    color: var(--color-gray-500);
    font-weight: 600;
}
.bm-font-select { margin-bottom: var(--space-2); }

/* Stroke toggle */
.bm-stroke-row {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    margin-top: var(--space-3);
    padding: var(--space-2) var(--space-3);
    background: var(--color-gray-50, #f8fafc);
    border-radius: var(--radius-md, 8px);
}
.bm-stroke-toggle {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-gray-600);
    cursor: pointer;
    flex: 1;
}
.bm-stroke-toggle input {
    accent-color: var(--color-primary);
}

/* ── Position Grid ─────────────────────────────────────── */
.bm-position-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2);
}
.bm-pos-btn {
    width: 100%;
    aspect-ratio: 1;
    min-height: 44px;
    border: 1px solid var(--color-gray-300);
    border-radius: var(--radius-md, 8px);
    background: var(--color-white, #fff);
    color: var(--color-gray-500);
    cursor: pointer;
    transition: all 150ms ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-sm);
}
.bm-pos-btn:hover {
    border-color: var(--color-primary);
    color: var(--color-primary);
    transform: translateY(-1px);
}
.bm-pos-btn--active {
    border-color: var(--color-primary);
    background: rgba(79, 70, 229, 0.1);
    color: var(--color-primary);
}

/* ── Download Area ─────────────────────────────────────── */
.bm-download-area {
    padding-top: var(--space-3);
}
.bm-download-btn {
    width: 100%;
}

/* ── Size Guide (Collapsible) ──────────────────────────── */
.bm-size-guide {
    margin-top: var(--space-5);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg, 12px);
    background: var(--color-white, #fff);
}
.bm-size-guide > summary {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-5);
    font-family: var(--font-display);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gray-900);
    cursor: pointer;
    list-style: none;
    transition: background 150ms ease;
}
.bm-size-guide > summary::-webkit-details-marker { display: none; }
.bm-size-guide > summary i.fa-ruler-combined {
    color: var(--color-primary);
}
.bm-size-guide > summary::after {
    content: '\f078';
    font-family: 'Font Awesome 5 Free';
    font-weight: 900;
    font-size: var(--font-size-sm);
    color: var(--color-gray-400);
    margin-left: auto;
    transition: transform 200ms ease;
}
.bm-size-guide[open] > summary::after {
    transform: rotate(180deg);
}
.bm-size-guide > summary:hover {
    background: var(--color-gray-50, #f8fafc);
}
.bm-size-guide__body {
    padding: 0 var(--space-5) var(--space-5);
}
.bm-guide-intro {
    font-size: var(--font-size-base);
    color: var(--color-gray-600);
    margin-bottom: var(--space-6);
    line-height: 1.7;
}
.bm-guide-subtitle {
    font-family: var(--font-display);
    font-size: var(--font-size-lg);
    font-weight: 700;
    color: var(--color-gray-900);
    margin-top: var(--space-6);
    margin-bottom: var(--space-4);
}

/* Size diagram */
.bm-size-diagram {
    margin-bottom: var(--space-6);
    background: var(--color-gray-50, #f8fafc);
    border: 1px solid var(--color-gray-200);
    border-radius: var(--radius-lg, 12px);
    padding: var(--space-6);
}
.bm-size-diagram__canvas {
    position: relative;
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    aspect-ratio: 2560 / 1440;
    background: var(--color-gray-200);
    border-radius: var(--radius-md, 8px);
    overflow: hidden;
}
.bm-zone {
    position: absolute;
    border: 2px dashed;
    display: flex;
    align-items: flex-start;
    justify-content: flex-start;
    padding: 4px 8px;
}
.bm-zone__label {
    font-size: var(--font-size-xs);
    font-weight: 700;
    white-space: nowrap;
    padding: 1px 6px;
    border-radius: 3px;
}
.bm-zone--tv { top: 0; left: 0; right: 0; bottom: 0; border-color: var(--color-gray-500); }
.bm-zone--tv .bm-zone__label { background: var(--color-gray-500); color: var(--color-white, #fff); }
.bm-zone--desktop { top: 35.3%; left: 0; right: 0; bottom: 35.3%; border-color: var(--color-primary-light, #6366f1); }
.bm-zone--desktop .bm-zone__label { background: var(--color-primary-light, #6366f1); color: var(--color-white, #fff); }
.bm-zone--tablet { top: 35.3%; left: 13.8%; right: 13.8%; bottom: 35.3%; border-color: var(--color-primary, #4f46e5); }
.bm-zone--tablet .bm-zone__label { background: var(--color-primary, #4f46e5); color: var(--color-white, #fff); }
.bm-zone--mobile { top: 35.3%; left: 19.8%; right: 19.8%; bottom: 35.3%; border-color: var(--color-success, #10b981); }
.bm-zone--mobile .bm-zone__label { background: var(--color-success, #10b981); color: var(--color-white, #fff); }

/* Size table */
.bm-size-table-wrap {
    overflow-x: auto;
    margin-bottom: var(--space-4);
}
.bm-size-table {
    font-size: var(--font-size-sm);
}
.bm-size-table i {
    color: var(--color-primary);
    margin-right: var(--space-2);
}

/* FAQ section title */
.bm-section-title {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: 800;
    color: var(--color-gray-900);
    margin-bottom: var(--space-6);
}

/* ── Mobile Responsive ─────────────────────────────────── */
@media (max-width: 1024px) {
    .bm-studio__main {
        grid-template-columns: 1fr 300px;
    }
}

@media (max-width: 900px) {
    .bm-studio__main {
        grid-template-columns: 1fr;
        padding: var(--space-4);
    }
    .bm-sidebar {
        max-height: none;
        overflow-y: visible;
        padding-right: 0;
    }
    .bm-device-strip {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 767px) {
    .bm-studio {
        padding: 0 var(--space-3);
    }
    .bm-studio__main {
        padding: var(--space-3);
        gap: var(--space-4);
    }
    .bm-presets {
        padding: var(--space-3) var(--space-3) 0;
    }
    .bm-preset {
        min-width: 64px;
        padding: var(--space-1);
    }
    .bm-preset__swatch {
        width: 48px;
        height: 28px;
    }
    .bm-device-strip {
        padding: var(--space-3);
        gap: var(--space-2);
    }
    .bm-section__body {
        padding: 0 var(--space-3) var(--space-3);
    }
    .bm-section > summary {
        padding: var(--space-3);
    }
    .bm-size-color-row {
        flex-direction: column;
    }
    .bm-color-row {
        flex-direction: column;
    }
    .bm-pos-btn {
        min-height: 48px;
    }
    .bm-toolbar-btn {
        width: 44px;
        height: 44px;
    }
    .bm-safe-zone-overlay.bm-safe-zone--visible::after {
        font-size: var(--font-size-xs);
        padding: 1px 6px;
    }
    .bm-size-guide__body {
        padding: 0 var(--space-3) var(--space-3);
    }
    .bm-size-guide > summary {
        padding: var(--space-3) var(--space-4);
        font-size: var(--font-size-base);
    }
    .bm-zone__label {
        font-size: var(--font-size-xs);
        transform: scale(0.85);
        transform-origin: top left;
    }
    .bm-section-title {
        font-size: var(--font-size-xl);
    }
}

@media (max-width: 480px) {
    .bm-presets__grid {
        gap: var(--space-1);
    }
    .bm-preset {
        min-width: 56px;
    }
}