/* ─── StemLab Settings v1.1.0 ─── */

/* ─── CSS Variables (matches StemLab dark theme) ─── */
:root {
    --slset-accent: #F0176F;
    --slset-accent-hover: #D01460;
    --slset-accent-active: #B5105A;
    --slset-accent-glow: rgba(240, 23, 111, 0.22);
    --slset-accent-tint: rgba(240, 23, 111, 0.07);
    --slset-bg: #0A0A12;
    --slset-surface: rgba(17, 17, 28, 0.92);
    --slset-border: rgba(42, 42, 60, 0.9);
    --slset-border-hover: rgba(60, 60, 80, 0.9);
    --slset-text: #F5F5F7;
    --slset-text-muted: #A1A1B3;
    --slset-radius: 16px;
    --slset-radius-sm: 10px;
    --slset-duration: 150ms;
}

/* ─── Settings Panel ─── */
.slset-panel {
    max-width: 560px;
    margin: 40px auto;
    padding: 0 20px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.slset-title {
    font-size: 20px;
    font-weight: 700;
    color: var(--slset-text);
    margin: 0 0 6px 0;
    letter-spacing: -0.01em;
}

.slset-subtitle {
    font-size: 13px;
    color: var(--slset-text-muted);
    margin: 0 0 28px 0;
    line-height: 1.5;
}

/* ─── Locked State (logged-out / free user): premium card ─── */
.slset-locked {
    text-align: center;
    padding: 60px 20px;
    background: var(--slset-surface);
    border: 1px solid var(--slset-border);
    border-radius: var(--slset-radius);
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.35),
                inset 0 1px 0 rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(12px) saturate(1.2);
    -webkit-backdrop-filter: blur(12px) saturate(1.2);
}

/* Top highlight line */
.slset-locked::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.07), transparent);
    pointer-events: none;
}

/* Ambient accent glow at top */
.slset-locked::after {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60%;
    height: 60px;
    background: radial-gradient(ellipse at 50% 0%, rgba(240, 23, 111, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.slset-locked .slset-title {
    margin-bottom: 10px;
}

.slset-locked .slset-subtitle {
    margin-bottom: 24px;
}

/* ─── Primary Button: premium pink glow ─── */
.slset-btn-primary {
    display: inline-block;
    padding: 10px 28px;
    font-size: 13px;
    font-weight: 600;
    color: #fff;
    background: var(--slset-accent);
    border: none;
    border-radius: var(--slset-radius-sm);
    text-decoration: none;
    cursor: pointer;
    transition: background var(--slset-duration) ease,
                box-shadow var(--slset-duration) ease,
                transform var(--slset-duration) ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 16px var(--slset-accent-glow),
                inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

/* Sheen */
.slset-btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.15) 0%, transparent 55%);
    border-radius: inherit;
    pointer-events: none;
}

.slset-btn-primary:hover {
    background: var(--slset-accent-hover);
    box-shadow: 0 0 32px var(--slset-accent-glow),
                0 4px 16px rgba(0, 0, 0, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.2);
    color: #fff;
    text-decoration: none;
    transform: translateY(-1px);
}

.slset-btn-primary:active {
    background: var(--slset-accent-active);
    box-shadow: 0 0 10px var(--slset-accent-glow);
    transform: scale(0.98);
}

/* ─── Settings Section: frosted glass card ─── */
.slset-section {
    background: var(--slset-surface);
    border: 1px solid var(--slset-border);
    border-radius: var(--slset-radius);
    padding: 4px 0;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.3),
                inset 0 1px 0 rgba(255, 255, 255, 0.04);
    backdrop-filter: blur(12px) saturate(1.2);
    -webkit-backdrop-filter: blur(12px) saturate(1.2);
}

/* Top highlight */
.slset-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.06), transparent);
    pointer-events: none;
}

/* ─── Setting Row ─── */
.slset-setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    gap: 16px;
    transition: background var(--slset-duration) ease;
    position: relative;
}

.slset-setting-row:not(:last-child)::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 20px;
    right: 20px;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--slset-border), transparent);
    pointer-events: none;
}

.slset-setting-row:hover {
    background: rgba(255, 255, 255, 0.02);
}

.slset-setting-info {
    flex: 1;
    min-width: 0;
}

.slset-setting-label {
    font-size: 14px;
    font-weight: 600;
    color: var(--slset-text);
    margin-bottom: 3px;
    letter-spacing: -0.01em;
}

.slset-setting-desc {
    font-size: 12px;
    color: var(--slset-text-muted);
    line-height: 1.5;
}

/* ─── Toggle Switch: premium with glow ─── */
.slset-toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
    cursor: pointer;
}

.slset-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
    position: absolute;
}

.slset-toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--slset-border);
    border-radius: 24px;
    transition: background 200ms ease, box-shadow 200ms ease;
    border: 1px solid rgba(60, 60, 80, 0.5);
}

.slset-toggle-slider::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: var(--slset-text-muted);
    border-radius: 50%;
    transition: transform 200ms cubic-bezier(0.34, 1.56, 0.64, 1),
                background 200ms ease,
                box-shadow 200ms ease;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.4);
}

/* ─── Toggle ON state ─── */
.slset-toggle input:checked + .slset-toggle-slider {
    background: var(--slset-accent);
    border-color: var(--slset-accent);
    box-shadow: 0 0 14px var(--slset-accent-glow),
                0 0 0 0 rgba(240, 23, 111, 0.0);
}

.slset-toggle input:checked + .slset-toggle-slider::before {
    transform: translateX(20px);
    background: #fff;
    box-shadow: 0 1px 6px rgba(0, 0, 0, 0.35),
                0 0 0 0 rgba(240, 23, 111, 0.0);
}

/* Hover glow on toggle track */
.slset-toggle:hover .slset-toggle-slider {
    border-color: rgba(80, 80, 100, 0.5);
}

.slset-toggle:hover input:checked + .slset-toggle-slider {
    box-shadow: 0 0 20px var(--slset-accent-glow);
}

/* ─── Focus ring for keyboard accessibility ─── */
.slset-toggle input:focus-visible + .slset-toggle-slider {
    outline: 2px solid var(--slset-accent);
    outline-offset: 3px;
}

/* ─── Save Status ─── */
.slset-save-status {
    font-size: 12px;
    min-height: 20px;
    margin-top: 12px;
    text-align: center;
    transition: color 200ms ease, opacity 200ms ease;
    font-weight: 500;
}

.slset-saving {
    color: var(--slset-text-muted);
}

.slset-saved {
    color: #4ADE80;
    text-shadow: 0 0 10px rgba(74, 222, 128, 0.35);
}

.slset-error {
    color: #F87171;
    text-shadow: 0 0 10px rgba(248, 113, 113, 0.30);
}

/* ─── Request Section ─── */
.slset-section--requests {
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--slset-border);
    text-align: center;
}

.slset-section-heading {
    font-size: 16px;
    font-weight: 700;
    color: var(--slset-text);
    margin: 0 0 8px;
    letter-spacing: -0.01em;
}

.slset-section-desc {
    font-size: 14px;
    color: var(--slset-text-muted);
    line-height: 1.5;
    margin: 0 0 16px;
}

/* ─── Secondary Button: ghost with accent hover ─── */
.slset-btn-secondary {
    display: inline-block;
    padding: 10px 24px;
    font-size: 14px;
    font-weight: 600;
    color: var(--slset-text);
    background: transparent;
    border: 1px solid var(--slset-border);
    border-radius: var(--slset-radius-sm);
    text-decoration: none;
    cursor: pointer;
    transition: border-color var(--slset-duration) ease,
                color var(--slset-duration) ease,
                background var(--slset-duration) ease,
                box-shadow var(--slset-duration) ease;
    font-family: inherit;
}

.slset-btn-secondary:hover {
    border-color: var(--slset-accent);
    color: var(--slset-accent);
    background: var(--slset-accent-tint);
    box-shadow: 0 0 12px rgba(240, 23, 111, 0.12);
    text-decoration: none;
}

.slset-btn-secondary:active {
    transform: scale(0.98);
}

/* ─── Responsive ─── */
@media (max-width: 480px) {
    .slset-panel {
        padding: 0 12px;
        margin: 24px auto;
    }

    .slset-setting-row {
        padding: 14px 16px;
    }

    .slset-setting-row:not(:last-child)::after {
        left: 16px;
        right: 16px;
    }
}

/* ─── Reduced motion ─── */
@media (prefers-reduced-motion: reduce) {
    .slset-toggle-slider,
    .slset-toggle-slider::before,
    .slset-btn-primary,
    .slset-btn-secondary,
    .slset-setting-row,
    .slset-save-status {
        transition-duration: 0.01ms;
    }
}