/* ============================================================
   CSS Button Generator — button-generator.css
   Prefix: .cbg-*  |  Brand: #3B82F6
   ============================================================ */

/* ── Tokens ─────────────────────────────────────────────── */
.cbg-section {
    --cbg-accent: #3B82F6;
    --cbg-accent-dark: #2563EB;
    --cbg-bg: #FFFFFF;
    --cbg-card-bg: #FFFFFF;
    --cbg-surface: #F8FAFC;
    --cbg-border: rgba(15, 23, 42, 0.09);
    --cbg-text: #0F172A;
    --cbg-muted: #475569;
    --cbg-label: #1E293B;
    --cbg-input-bg: #FFFFFF;
    --cbg-input-border: #C9D6E3;
    --cbg-stage-bg: #F1F5F9;
    --cbg-code-bg: #F1F5F9;
    --cbg-radius-base: 20px;
    --cbg-radius-sm: 10px;
}

/* ── Section Layout ──────────────────────────────────────── */
.cbg-section {
    padding: 60px 0 70px;
    background: #FFFFFF;
}

.cbg-section .container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ── Section Header ─────────────────────────────────────── */
.cbg-section-header {
    text-align: center;
    margin-bottom: 40px;
}

.cbg-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.08) 0%, rgba(99, 102, 241, 0.08) 100%);
    border: 1px solid rgba(59, 130, 246, 0.2);
    border-radius: 50px;
    padding: 8px 20px;
    font-size: 1rem;
    font-weight: 600;
    color: var(--cbg-accent);
    margin-bottom: 16px;
}

.cbg-badge i {
    font-size: 16px;
}

.cbg-section-desc {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 auto;
    line-height: 1.65;
}

/* ── Tool Card ─────────────────────────────────────────── */
.cbg-card {
    background: var(--cbg-card-bg);
    border: 1px solid var(--cbg-border);
    border-radius: var(--cbg-radius-base);
    box-shadow: 0 4px 24px rgba(59, 130, 246, 0.07);
    overflow: visible;
}

/* ── Presets Row ─────────────────────────────────────────── */
.cbg-presets-row {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
    padding: 20px 24px;
    border-bottom: 1px solid var(--cbg-border);
}

.cbg-presets-label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--cbg-muted);
    white-space: nowrap;
    flex-shrink: 0;
}

.cbg-preset-btns {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.cbg-preset-btn {
    padding: 6px 16px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1.5px solid var(--cbg-input-border);
    background: transparent;
    color: var(--cbg-label);
    transition: all 0.18s ease;
}

.cbg-preset-btn:hover {
    border-color: var(--cbg-accent);
    color: var(--cbg-accent);
}

.cbg-preset-btn.active {
    background: var(--cbg-accent);
    border-color: var(--cbg-accent);
    color: #fff;
}

/* ── Body ────────────────────────────────────────────────── */
.cbg-body {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: 0;
    min-height: 480px;
}

/* ── Controls Column ─────────────────────────────────────── */
.cbg-controls-col {
    padding: 24px;
    background: #F8FBFF;
    border-right: 1px solid var(--cbg-border);
    display: flex;
    flex-direction: column;
    gap: 4px;
    overflow-y: auto;
    max-height: 800px;
}

/* ── Control Section ─────────────────────────────────────── */
.cbg-control-section {
    border-top: 1px solid var(--cbg-border);
    margin-top: 12px;
}

/* ── Accordion Header ────────────────────────────────────── */
.cbg-acc-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 14px 0;
    background: none;
    border: none;
    cursor: pointer;
    text-align: left;
    gap: 8px;
}

.cbg-acc-header:hover .cbg-section-title {
    color: var(--cbg-text);
}

.cbg-acc-chevron {
    font-size: 14px;
    color: var(--cbg-muted);
    transition: transform 0.22s ease;
    flex-shrink: 0;
}

.cbg-acc-header[aria-expanded="true"] .cbg-acc-chevron {
    transform: rotate(180deg);
}

/* ── Accordion Body ──────────────────────────────────────── */
.cbg-acc-body {
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding-bottom: 16px;
}

.cbg-acc-body[hidden] {
    display: none;
}

.cbg-section-title {
    font-size: 11.5px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.09em;
    color: var(--cbg-label);
    transition: color 0.18s;
}

/* ── Advanced badge ──────────────────────────────────────── */
.cbg-adv-badge {
    display: inline-block;
    font-size: 9px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: #F59E0B;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-radius: 4px;
    padding: 1px 5px;
    vertical-align: middle;
    margin-left: 6px;
}

/* ── Effect description ──────────────────────────────────── */
.cbg-effect-desc {
    font-size: 13px;
    color: var(--cbg-muted);
    line-height: 1.55;
    margin: 2px 0 0;
    padding: 8px 10px;
    background: rgba(59, 130, 246, 0.05);
    border-left: 2px solid var(--cbg-accent);
    border-radius: 0 4px 4px 0;
}

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

/* ── Labels ──────────────────────────────────────────────── */
.cbg-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--cbg-label);
}

.cbg-label-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.cbg-val-badge {
    font-size: 12px;
    font-weight: 600;
    color: var(--cbg-accent);
    background: rgba(59, 130, 246, 0.1);
    border-radius: 4px;
    padding: 2px 7px;
}

/* ── Input & Select ──────────────────────────────────────── */
.cbg-input,
.cbg-select {
    width: 100%;
    padding: 9px 12px;
    border-radius: var(--cbg-radius-sm);
    border: 1.5px solid var(--cbg-input-border);
    background: var(--cbg-input-bg);
    color: var(--cbg-text);
    font-size: 14px;
    font-weight: 500;
    transition: border-color 0.18s;
    box-sizing: border-box;
}

.cbg-input:focus,
.cbg-select:focus {
    outline: none;
    border-color: var(--cbg-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.cbg-select {
    appearance: none;
    cursor: pointer;
}

/* ── Range ───────────────────────────────────────────────── */
.cbg-range {
    width: 100%;
    -webkit-appearance: none;
    appearance: none;
    height: 4px;
    border-radius: 2px;
    background: var(--cbg-input-border);
    cursor: pointer;
    accent-color: var(--cbg-accent);
}

.cbg-range::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--cbg-accent);
    cursor: pointer;
    border: 2px solid #fff;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.25);
}

/* ── Color Row ───────────────────────────────────────────── */
.cbg-color-row {
    display: flex;
    align-items: center;
    gap: 10px;
}

.cbg-color-swatch {
    width: 40px;
    height: 36px;
    border-radius: 8px;
    border: 1px solid var(--cbg-input-border);
    background: none;
    cursor: pointer;
    padding: 2px;
    flex-shrink: 0;
}

.cbg-color-swatch::-webkit-color-swatch-wrapper {
    padding: 0;
    border-radius: 6px;
}

.cbg-color-swatch::-webkit-color-swatch {
    border: none;
    border-radius: 6px;
}

.cbg-hex-input {
    flex: 1;
    padding: 7px 12px;
    border-radius: var(--cbg-radius-sm);
    border: 1px solid var(--cbg-input-border);
    background: var(--cbg-input-bg);
    color: var(--cbg-text);
    font-size: 13px;
    font-family: 'Fira Code', monospace;
    text-transform: uppercase;
    box-sizing: border-box;
}

.cbg-hex-input:focus {
    outline: none;
    border-color: var(--cbg-accent);
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

/* ── Toggle Switch ───────────────────────────────────────── */
.cbg-toggle-row {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
}

.cbg-toggle-switch {
    cursor: pointer;
    display: inline-block;
    flex-shrink: 0;
}

.cbg-toggle-switch input {
    display: none;
}

.cbg-toggle-track {
    display: flex;
    align-items: center;
    width: 40px;
    height: 22px;
    border-radius: 11px;
    background: var(--cbg-input-border);
    padding: 2px;
    transition: background 0.2s;
}

.cbg-toggle-switch input:checked+.cbg-toggle-track {
    background: var(--cbg-accent);
}

.cbg-toggle-thumb {
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #fff;
    transition: transform 0.2s;
}

.cbg-toggle-switch input:checked+.cbg-toggle-track .cbg-toggle-thumb {
    transform: translateX(18px);
}

/* ── Shadow Preset Buttons ───────────────────────────────── */
.cbg-shadow-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

.cbg-shadow-btn {
    padding: 5px 14px;
    border-radius: 100px;
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    border: 1.5px solid var(--cbg-input-border);
    background: transparent;
    color: var(--cbg-label);
    transition: all 0.18s ease;
}

.cbg-shadow-btn:hover {
    border-color: var(--cbg-accent);
    color: var(--cbg-accent);
}

.cbg-shadow-btn.active {
    background: rgba(59, 130, 246, 0.15);
    border-color: var(--cbg-accent);
    color: var(--cbg-accent);
}

/* ── Output Column ───────────────────────────────────────── */
.cbg-output-col {
    display: flex;
    flex-direction: column;
    gap: 0;
}

/* ── Preview Box ─────────────────────────────────────────── */
.cbg-preview-box {
    display: flex;
    flex-direction: column;
    flex: 1;
}

.cbg-preview-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 24px 12px;
}

.cbg-preview-label {
    font-size: 15px;
    font-weight: 700;
    color: var(--cbg-text);
}

.cbg-preview-hint {
    font-size: 13px;
    color: var(--cbg-muted);
}

.cbg-preview-stage {
    flex: 1;
    min-height: 180px;
    padding: 32px 24px;
}

.cbg-preview-stage-inner {
    width: 100%;
    min-height: 120px;
    background: var(--cbg-stage-bg);
    border-radius: 10px;
    border: 1px solid var(--cbg-border);
    display: flex;
    align-items: center;
    justify-content: center;
    background-image:
        linear-gradient(rgba(59, 130, 246, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(59, 130, 246, 0.06) 1px, transparent 1px);
    background-size: 20px 20px;
}

#cbg-preview-btn {
    cursor: pointer;
    font-family: inherit;
}

/* ── State Row ───────────────────────────────────────────── */
.cbg-states-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding: 16px 24px;
    border-top: 1px solid var(--cbg-border);
}

.cbg-state-item {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.cbg-state-label {
    font-size: 12px;
    font-weight: 500;
    color: var(--cbg-muted);
    font-family: 'Fira Code', monospace;
    text-align: center;
}

/* Actual button preview for each state */
.cbg-state-btn {
    width: 100%;
    padding: 9px 12px;
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    font-family: inherit;
    cursor: default;
    pointer-events: none;
    border: 1px solid rgba(59, 130, 246, 0.12);
    text-align: center;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: none;
}

/* ── Code Box ────────────────────────────────────────────── */
.cbg-code-box {
    border-top: 1px solid var(--cbg-border);
    display: flex;
    flex-direction: column;
}

.cbg-code-top-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px 0;
}

.cbg-code-tabs {
    display: flex;
    gap: 4px;
}

.cbg-code-tab {
    padding: 7px 16px;
    border-radius: var(--cbg-radius-sm) var(--cbg-radius-sm) 0 0;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    background: transparent;
    color: var(--cbg-muted);
    transition: all 0.18s;
}

.cbg-code-tab:hover {
    color: var(--cbg-text);
}

.cbg-code-tab.active {
    background: var(--cbg-code-bg);
    border-color: var(--cbg-border);
    border-bottom-color: var(--cbg-code-bg);
    color: var(--cbg-accent);
}

.cbg-copy-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: var(--cbg-radius-sm);
    border: 1px solid var(--cbg-input-border);
    background: transparent;
    color: var(--cbg-label);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.18s;
}

.cbg-copy-btn:hover {
    border-color: var(--cbg-accent);
    color: var(--cbg-accent);
}

.cbg-copy-btn i {
    font-size: 15px;
}

.cbg-code-pre {
    margin: 0;
    padding: 20px;
    background: var(--cbg-code-bg);
    color: #1E293B;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 13.5px;
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-all;
    min-height: 180px;
    border-radius: 0 0 var(--cbg-radius-base) 0;
    overflow-x: auto;
}

/* ── Toast ───────────────────────────────────────────────── */
.cbg-toast {
    position: fixed;
    bottom: 28px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: #1E293B;
    color: #F1F5F9;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 100px;
    padding: 10px 22px;
    font-size: 14px;
    font-weight: 500;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.25s ease, transform 0.25s ease;
    z-index: 9999;
    white-space: nowrap;
}

.cbg-toast.cbg-toast--visible {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

/* ── Accessibility — focus-visible rings ─────────────────── */
.cbg-acc-header:focus-visible,
.cbg-preset-btn:focus-visible,
.cbg-shadow-btn:focus-visible,
.cbg-code-tab:focus-visible,
.cbg-copy-btn:focus-visible {
    outline: 2px solid var(--cbg-accent);
    outline-offset: 2px;
    border-radius: var(--cbg-radius-sm);
}

.cbg-acc-header:focus-visible {
    border-radius: 6px;
}

.cbg-preset-btn:focus-visible,
.cbg-shadow-btn:focus-visible {
    border-radius: 100px;
}

.cbg-color-swatch:focus-visible {
    outline: 2px solid var(--cbg-accent);
    outline-offset: 2px;
}

.cbg-range:focus-visible {
    outline: none;
}

.cbg-range:focus-visible::-webkit-slider-thumb {
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.3);
}

.cbg-input:focus-visible,
.cbg-select:focus-visible,
.cbg-hex-input:focus-visible {
    outline: 2px solid var(--cbg-accent);
    outline-offset: 0;
}

.cbg-toggle-switch:focus-within .cbg-toggle-track {
    outline: 2px solid var(--cbg-accent);
    outline-offset: 2px;
    border-radius: 11px;
}

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 1100px) {
    .cbg-body {
        grid-template-columns: 320px 1fr;
    }
}

@media (max-width: 900px) {
    .cbg-body {
        grid-template-columns: 1fr;
    }

    .cbg-controls-col {
        border-right: none;
        border-bottom: 1px solid var(--cbg-border);
        max-height: none;
    }

    .cbg-code-pre {
        border-radius: 0 0 var(--cbg-radius-base) var(--cbg-radius-base);
    }
}

@media (max-width: 640px) {
    .cbg-section {
        padding: 40px 0 60px;
    }

    .cbg-presets-row {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .cbg-states-row {
        gap: 8px;
        padding: 12px 16px;
    }

    .cbg-state-btn {
        font-size: 11px;
        padding: 7px 8px;
    }

    .cbg-code-top-row {
        flex-wrap: wrap;
        gap: 10px;
        padding: 12px 14px 0;
    }

    .cbg-code-pre {
        padding: 14px;
        font-size: 12px;
    }

    .cbg-controls-col {
        padding: 16px;
    }

    .cbg-preview-stage {
        padding: 20px 16px;
    }

    .cbg-preview-header {
        padding: 14px 16px 8px;
    }
}