/* ─────────────────────────────────────────────────────────────
   Style Panel — Floating DevTools-style design token editor
   Prefix: sp-
   ───────────────────────────────────────────────────────────── */

/* ── Trigger Button ── */
.sp-trigger {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 9998;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--card-1);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.15s, border-color 0.15s, transform 0.15s;
    box-shadow: var(--shadow-card);
}
.sp-trigger:hover {
    color: var(--accent);
    border-color: var(--accent);
    transform: scale(1.08);
}
.sp-trigger svg { width: 18px; height: 18px; }

/* Hide trigger when panel is open */
.sp-panel[data-open="true"] ~ .sp-trigger { display: none; }

/* ── Panel Shell ── */
.sp-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 380px;
    z-index: 9999;
    background: var(--body-bg);
    border-left: 1px solid var(--border-subtle);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.3);
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    font-family: var(--font);
}
.sp-panel[data-open="true"] {
    transform: translateX(0);
}

/* ── Header ── */
.sp-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}
.sp-header__title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--text);
    margin: 0;
}
.sp-header__close {
    width: 30px;
    height: 30px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: color 0.15s, background 0.15s;
}
.sp-header__close:hover {
    color: var(--text);
    background: var(--card-1);
}
.sp-header__close svg { width: 18px; height: 18px; }

/* ── Controls Bar ── */
.sp-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-subtle);
    flex-shrink: 0;
}
.sp-toggle {
    display: flex;
    align-items: center;
    gap: 6px;
    height: 32px;
    padding: 0 12px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-subtle);
    background: var(--card-1);
    color: var(--text-muted);
    font-size: 13px;
    font-family: var(--font);
    cursor: pointer;
    transition: color 0.15s, border-color 0.15s;
    white-space: nowrap;
}
.sp-toggle:hover {
    color: var(--accent);
    border-color: var(--accent);
}
.sp-toggle.active {
    color: var(--accent);
    border-color: var(--accent);
    background: var(--accent-a-08);
}
.sp-toggle svg { width: 15px; height: 15px; flex-shrink: 0; }

/* ── Scrollable Body ── */
.sp-body {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 0;
}

/* ── Accordion Sections ── */
.sp-section {
    border-bottom: 1px solid var(--border-subtle);
}
.sp-section__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    cursor: pointer;
    user-select: none;
    transition: background 0.1s;
}
.sp-section__header:hover {
    background: var(--card-1);
}
.sp-section__label {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}
.sp-section__chevron {
    color: var(--text-label);
    transition: transform 0.2s;
    flex-shrink: 0;
}
.sp-section.collapsed .sp-section__chevron {
    transform: rotate(-90deg);
}
.sp-section__body {
    padding: 0 16px 14px;
}
.sp-section.collapsed .sp-section__body {
    display: none;
}

/* ── Color Swatches ── */
.sp-swatch-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}
.sp-swatch {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 7px 8px;
    border-radius: var(--radius-sm);
    background: var(--card-1);
}
.sp-swatch input[type="color"] {
    width: 34px;
    height: 34px;
    border: none;
    padding: 0;
    cursor: pointer;
    background: none;
    border-radius: var(--radius-sm);
    flex-shrink: 0;
}
.sp-swatch__info { flex: 1; min-width: 0; }
.sp-swatch__name {
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sp-swatch__value {
    font-size: 12px;
    color: var(--text-muted);
    font-family: monospace;
    cursor: pointer;
    padding: 1px 3px;
    border-radius: 2px;
    transition: background 0.15s, color 0.15s;
}
.sp-swatch__value:hover {
    background: var(--card-2);
    color: var(--accent);
}
.sp-swatch__var {
    font-size: 10px;
    color: var(--text-label);
    font-family: monospace;
}

/* ── Gradient Bar ── */
.sp-gradient-bar {
    height: 32px;
    border-radius: var(--radius-sm);
    background: var(--gradient-brand);
    margin-bottom: 8px;
}

/* ── Slider Rows ── */
.sp-slider-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 4px 0;
}
.sp-slider-row label {
    font-size: 13px;
    color: var(--text-label);
    font-family: monospace;
    min-width: 120px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.sp-slider-row input[type="range"] {
    -webkit-appearance: none;
    appearance: none;
    flex: 1;
    height: 4px;
    background: var(--card-1);
    border-radius: 2px;
    outline: none;
}
.sp-slider-row input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent);
    cursor: pointer;
}
.sp-slider-val {
    font-size: 13px;
    color: var(--text-muted);
    font-family: monospace;
    min-width: 40px;
    text-align: right;
    cursor: pointer;
    padding: 2px 4px;
    border-radius: 2px;
    transition: background 0.15s, color 0.15s;
}
.sp-slider-val:hover {
    background: var(--card-1);
    color: var(--accent);
}

/* ── Spacing Bars ── */
.sp-spacing-row {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 3px 0;
}
.sp-spacing-label {
    font-size: 13px;
    color: var(--text-muted);
    font-family: monospace;
    min-width: 100px;
}
.sp-spacing-bar {
    height: 18px;
    background: var(--accent);
    border-radius: 2px;
    opacity: 0.25;
}

/* ── Radius Boxes ── */
.sp-radius-grid {
    display: flex;
    gap: 12px;
    align-items: center;
    margin-bottom: 8px;
}
.sp-radius-box {
    width: 56px;
    height: 56px;
    background: var(--card-1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    color: var(--text-muted);
    font-family: monospace;
}

/* ── Responsive Comparison ── */
.sp-responsive-table {
    width: 100%;
    font-size: 13px;
    font-family: monospace;
    border-collapse: collapse;
}
.sp-responsive-table th {
    font-weight: 600;
    color: var(--text-muted);
    text-align: left;
    padding: 5px 6px;
    border-bottom: 1px solid var(--border-subtle);
}
.sp-responsive-table td {
    color: var(--text);
    padding: 4px 6px;
}
.sp-responsive-table td.sp-changed {
    color: var(--color-warning);
}

/* ── Footer ── */
.sp-footer {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-top: 1px solid var(--border-subtle);
    flex-shrink: 0;
}
.sp-footer button {
    height: 32px;
    font-size: 13px;
    padding: 0 14px;
}
.sp-footer__status {
    font-size: 13px;
    color: var(--color-success);
    margin-left: auto;
}

/* ── Typography Level Cards ── */
.sp-type-level {
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-sm);
    margin-bottom: 6px;
    overflow: hidden;
}
.sp-type-level__header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 6px 8px; cursor: pointer; user-select: none;
    background: rgba(255,255,255,0.02);
}
.sp-type-level__header:hover { background: rgba(255,255,255,0.04); }
.sp-type-level__header svg { transition: transform 0.2s; color: var(--text-label); }
.sp-type-level.collapsed .sp-type-level__header svg { transform: rotate(-90deg); }
.sp-type-level__label {
    font-size: 10px; font-weight: 600; color: var(--text);
    font-family: monospace; letter-spacing: 0.02em;
}
.sp-type-level__body {
    padding: 6px 8px 8px;
}
.sp-type-level.collapsed .sp-type-level__body { display: none; }

/* Controls */
.sp-control-row {
    display: flex; align-items: center; gap: 6px;
    margin-bottom: 4px;
}
.sp-control-row label {
    font-size: 8px; color: var(--text-label); font-family: monospace;
    min-width: 50px; text-transform: uppercase; letter-spacing: 0.03em;
}
.sp-select {
    flex: 1; height: 22px; font-size: 9px;
    background: var(--input-2); border: 1px solid var(--border-subtle);
    border-radius: 2px; color: var(--text); font-family: monospace;
    padding: 0 14px 0 4px; outline: none;
    -webkit-appearance: none; appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%23666' stroke-width='1.5' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 3px center;
    background-size: 8px 5px;
}
.sp-select:focus { border-color: var(--accent); }
.sp-style-toggle {
    width: 22px; height: 22px; border: 1px solid var(--border-subtle);
    border-radius: 2px; background: var(--input-2); color: var(--text-label);
    font-size: 10px; font-style: italic; font-weight: 600;
    cursor: pointer; display: flex; align-items: center; justify-content: center;
}
.sp-style-toggle.active {
    border-color: var(--accent); color: var(--accent);
    background: var(--accent-a-10);
}
.sp-type-group-label {
    font-size: 8px; font-weight: 600; color: var(--text-label);
    font-family: monospace; text-transform: uppercase; letter-spacing: 0.04em;
    margin-bottom: 4px;
}
.sp-type-mobile-label {
    color: var(--color-warning); border-top: 1px solid var(--border-subtle);
    padding-top: 6px; margin-top: 6px;
}
.sp-type-mobile-group {
    margin-top: 6px;
}