/* ==========================================================================
   Web Component Showcase — Styles
   Theme: Dark mode, Indigo/Cyan, glassmorphism
   ========================================================================== */

:root {
    --color-primary: #6366F1;
    --color-primary-glow: rgba(99, 102, 241, 0.25);
    --color-secondary: #94A3B8;
    --color-accent: #22D3EE;
    --color-accent-glow: rgba(34, 211, 238, 0.2);
    --color-bg: #0F172A;
    --color-bg-raised: #1E293B;
    --color-bg-card: rgba(30, 41, 59, 0.6);
    --color-bg-input: rgba(15, 23, 42, 0.8);
    --color-surface: rgba(51, 65, 85, 0.4);
    --color-border: rgba(148, 163, 184, 0.12);
    --color-text: #F1F5F9;
    --color-text-secondary: #94A3B8;
    --color-text-muted: #64748B;
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-danger: #EF4444;
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', 'Fira Code', 'Cascadia Code', monospace;
    --transition: 250ms ease;
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    pointer-events: none;
    z-index: 0;
    opacity: 0.35;
}

.bg-glow--1 {
    width: 500px;
    height: 500px;
    background: var(--color-primary-glow);
    top: -100px;
    right: -80px;
    animation: float 12s ease-in-out infinite;
}

.bg-glow--2 {
    width: 400px;
    height: 400px;
    background: var(--color-accent-glow);
    bottom: -80px;
    left: -60px;
    animation: float 15s ease-in-out infinite reverse;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0)
    }

    50% {
        transform: translate(20px, -15px)
    }
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 20px;
    position: relative;
    z-index: 1;
}

/* Header */
.header {
    padding: 28px 0 12px;
    text-align: center;
}

.header__brand {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 6px;
}

.header__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: var(--radius);
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    color: #fff;
}

.header__title {
    font-size: 1.6rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.02em;
}

.header__tagline {
    color: var(--color-text-secondary);
    font-size: 0.9rem;
}

/* Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 20px 0 16px;
    flex-wrap: wrap;
}

.toolbar__filters {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 6px 16px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    outline: none;
}

.filter-btn:hover {
    background: var(--color-surface);
    color: var(--color-text);
}

.filter-btn.active {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.filter-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.icon-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition);
    outline: none;
}

.icon-btn:hover {
    background: var(--color-surface);
    color: var(--color-text);
}

.icon-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Split Layout */
.split-layout {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 20px;
    min-height: 65vh;
}

/* Component List */
.component-list {
    max-height: 70vh;
    overflow-y: auto;
    padding-right: 4px;
}

.component-list::-webkit-scrollbar {
    width: 4px;
}

.component-list::-webkit-scrollbar-track {
    background: transparent;
}

.component-list::-webkit-scrollbar-thumb {
    background: var(--color-surface);
    border-radius: 4px;
}

.component-grid {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.comp-card {
    padding: 14px 16px;
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    cursor: pointer;
    transition: all var(--transition);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}

.comp-card:hover {
    border-color: rgba(148, 163, 184, 0.25);
    transform: translateX(4px);
}

.comp-card.active {
    border-color: var(--color-primary);
    background: rgba(99, 102, 241, 0.08);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.1);
}

.comp-card__name {
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2px;
}

.comp-card__tag {
    font-size: 0.7rem;
    color: var(--color-accent);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Detail Panel */
.detail-panel {
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 24px;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    overflow-y: auto;
    max-height: 75vh;
}

.detail-panel__empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--color-text-muted);
    gap: 12px;
    min-height: 300px;
}

.detail-panel__empty p {
    font-size: 0.9rem;
}

/* Detail Header */
.detail-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
}

.detail-header__title {
    font-size: 1.2rem;
    font-weight: 700;
}

.detail-header__actions {
    display: flex;
    gap: 8px;
}

.btn-sm {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
    font-size: 0.78rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    outline: none;
}

.btn-sm:hover {
    background: var(--color-surface);
    color: var(--color-text);
}

.btn-sm--primary {
    background: var(--color-primary);
    color: #fff;
    border-color: var(--color-primary);
}

.btn-sm--primary:hover {
    background: #5558E6;
}

.btn-sm:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Size Variants */
.size-bar {
    display: flex;
    gap: 6px;
    margin-bottom: 16px;
}

.size-btn {
    padding: 4px 12px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    background: transparent;
    color: var(--color-text-muted);
    font-family: var(--font-sans);
    font-size: 0.72rem;
    cursor: pointer;
    transition: all var(--transition);
    outline: none;
}

.size-btn.active {
    background: rgba(34, 211, 238, 0.12);
    color: var(--color-accent);
    border-color: rgba(34, 211, 238, 0.3);
}

.size-btn:hover {
    background: var(--color-surface);
}

/* Preview Area */
.preview-area {
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 32px;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 150px;
    transition: background var(--transition), color var(--transition);
}

.preview-area--dark {
    background: #1E293B;
    color: #F1F5F9;
}

.preview-area--light {
    background: #F8FAFC;
    color: #1E293B;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 2px;
    margin-bottom: 0;
    border-bottom: 1px solid var(--color-border);
}

.tab-btn {
    padding: 8px 16px;
    border: none;
    background: transparent;
    color: var(--color-text-muted);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all var(--transition);
    outline: none;
    margin-bottom: -1px;
}

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

.tab-btn.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
}

.tab-btn:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: -2px;
}

.tab-content {
    display: none;
    padding: 16px 0;
}

.tab-content.active {
    display: block;
}

/* Attribute Editor */
.attr-editor {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.attr-row {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 8px;
    align-items: center;
}

.attr-label {
    font-size: 0.78rem;
    color: var(--color-text-secondary);
    font-weight: 500;
}

.attr-input {
    padding: 6px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg-input);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    outline: none;
    transition: border-color var(--transition);
}

.attr-input:focus {
    border-color: var(--color-primary);
}

.attr-input[type="color"] {
    padding: 2px;
    height: 32px;
    cursor: pointer;
}

select.attr-input {
    cursor: pointer;
}

/* Code Block */
.code-block {
    background: #0D1117;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 16px;
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.78rem;
    line-height: 1.6;
    color: #C9D1D9;
    position: relative;
}

.code-block__copy {
    position: absolute;
    top: 8px;
    right: 8px;
    padding: 4px 10px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: var(--radius-sm);
    background: rgba(30, 41, 59, 0.8);
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
    font-size: 0.7rem;
    cursor: pointer;
    transition: all var(--transition);
    outline: none;
}

.code-block__copy:hover {
    background: var(--color-surface);
    color: var(--color-text);
}

/* Event Log */
.event-log {
    background: #0D1117;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    padding: 12px;
    max-height: 200px;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    line-height: 1.8;
    color: #8B949E;
}

.event-log__entry {
    padding: 2px 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.06);
}

.event-log__entry:last-child {
    border-bottom: none;
}

.event-log__time {
    color: var(--color-text-muted);
}

.event-log__name {
    color: var(--color-accent);
}

.event-log__empty {
    color: var(--color-text-muted);
    font-style: italic;
}

/* Slots Editor */
.slot-row {
    display: grid;
    grid-template-columns: 100px 1fr;
    gap: 8px;
    align-items: start;
    margin-bottom: 8px;
}

.slot-label {
    font-size: 0.78rem;
    color: var(--color-accent);
    font-weight: 500;
    padding-top: 6px;
}

.slot-input {
    padding: 6px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: var(--color-bg-input);
    color: var(--color-text);
    font-family: var(--font-sans);
    font-size: 0.8rem;
    resize: vertical;
    min-height: 32px;
    outline: none;
    transition: border-color var(--transition);
}

.slot-input:focus {
    border-color: var(--color-primary);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 10px 20px;
    background: var(--color-primary);
    color: #fff;
    border-radius: var(--radius-full);
    font-size: 0.82rem;
    font-weight: 500;
    z-index: 1000;
    animation: toast-in 300ms ease, toast-out 300ms ease 1.7s forwards;
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes toast-out {
    from {
        opacity: 1;
    }

    to {
        opacity: 0;
        transform: translateY(10px);
    }
}

/* Footer */
.footer {
    text-align: center;
    padding: 24px 0;
    border-top: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.8rem;
    margin-top: 32px;
}

/* Responsive */
@media (max-width: 900px) {
    .split-layout {
        grid-template-columns: 1fr;
    }

    .component-list {
        max-height: 40vh;
    }
}

@media (max-width: 480px) {
    .toolbar {
        flex-direction: column;
        align-items: stretch;
    }

    .toolbar__filters {
        overflow-x: auto;
    }

    .detail-header {
        flex-direction: column;
        align-items: flex-start;
    }
}