/* Liquid Glass Design System - VoC (iOS 26 inspired) */

.liquid-glass,
.glass-surface,
.glass-panel,
.glass-card,
.glass-pill {
    position: relative;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(160%);
    box-shadow: var(--glass-shadow);
    overflow: hidden;
    isolation: isolate;
}

.liquid-glass::before,
.glass-surface::before,
.glass-panel::before,
.glass-card::before,
.glass-pill::before {
    content: "";
    position: absolute;
    inset: -1px;
    background: linear-gradient(125deg, rgba(255, 255, 255, 0.4), rgba(255, 255, 255, 0.08) 45%, rgba(255, 255, 255, 0) 60%);
    opacity: 0.55;
    pointer-events: none;
}

.liquid-glass::after,
.glass-surface::after,
.glass-panel::after,
.glass-card::after,
.glass-pill::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(400px 180px at 20% -10%, rgba(123, 223, 255, 0.35), transparent 70%);
    opacity: 0.35;
    pointer-events: none;
}

.glass-panel {
    border-radius: 20px;
}

.glass-subpanel {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 16px;
    box-shadow: var(--glass-shadow-soft);
}

.glass-card {
    border-radius: 22px;
    box-shadow: var(--glass-shadow-soft);
    transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease;
}

.glass-card:hover {
    transform: translateY(-4px) scale(1.01);
    box-shadow: var(--glass-shadow);
    border-color: var(--glass-border-strong);
}

.glass-pill {
    border-radius: 999px;
}

.icon-button {
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 12px;
}

.mode-switch-capsule {
    --capsule-pad: 6px;
    background: rgba(10, 16, 26, 0.65);
    border-radius: 9999px;
    padding: var(--capsule-pad);
    display: flex;
    position: relative;
    border: 1px solid var(--glass-border);
    width: fit-content;
    overflow: hidden;
}

.mode-btn {
    padding: 8px 24px;
    border-radius: 9999px;
    color: rgba(238, 247, 255, 0.6);
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    z-index: 2;
}

.mode-btn.active {
    color: #07111a;
    text-shadow: none;
}

.mode-indicator {
    position: absolute;
    top: var(--capsule-pad);
    left: var(--capsule-pad);
    height: calc(100% - (var(--capsule-pad) * 2));
    width: calc(50% - var(--capsule-pad));
    background: var(--accent-gradient);
    border-radius: 9999px;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1;
    box-shadow: 0 8px 18px rgba(123, 223, 255, 0.35);
}

.settings-group {
    background: rgba(255, 255, 255, 0.04);
    border-radius: 16px;
    padding: 16px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: border-color 0.2s ease;
}

.settings-group:hover {
    border-color: rgba(255, 255, 255, 0.16);
}

.toggle-bg {
    transition: background-color 0.3s ease-in-out;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.toggle-dot {
    transition: transform 0.3s ease-in-out;
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
}

#doubanToggle:checked + .toggle-bg,
#adFilterToggle:checked + .toggle-bg,
#yellowFilterToggle:checked + .toggle-bg {
    background: var(--accent-gradient);
    border-color: rgba(255, 255, 255, 0.4);
}

#doubanToggle:checked ~ .toggle-dot,
#adFilterToggle:checked ~ .toggle-dot,
#yellowFilterToggle:checked ~ .toggle-dot {
    transform: translateX(1.5rem);
}

#doubanToggle:focus + .toggle-bg,
#doubanToggle:hover + .toggle-bg,
#adFilterToggle:focus + .toggle-bg,
#adFilterToggle:hover + .toggle-bg,
#yellowFilterToggle:focus + .toggle-bg,
#yellowFilterToggle:hover + .toggle-bg {
    box-shadow: 0 0 0 2px rgba(123, 223, 255, 0.3);
}