/* 
 * Browser API Explorer Styles
 * Theme: Dark Mode with Emerald Pulse
 * Palette: #0A1A14 (bg), #10B981 (primary), #34D399 (secondary), #6366F1 (accent)
 */

:root {
    --bg-dark: #0A1A14;
    --bg-surface: #12281F;
    --bg-surface-hover: #19362A;
    --bg-panel: #0E221A;

    --primary: #10B981;
    --primary-hover: #059669;
    --primary-dim: rgba(16, 185, 129, 0.15);

    --secondary: #34D399;
    --accent: #6366F1;

    --text-main: #ECFDF5;
    --text-muted: #A7F3D0;
    --text-dark: #064E3B;

    --border: rgba(16, 185, 129, 0.2);
    --border-highlight: rgba(16, 185, 129, 0.4);

    --success: #10B981;
    --warning: #F59E0B;
    --danger: #EF4444;

    --font-sans: 'Inter', system-ui, sans-serif;
    --font-mono: 'Fira Code', monospace;

    --radius-lg: 12px;
    --radius: 8px;
    --radius-sm: 4px;

    --shadow-glow: 0 0 15px rgba(16, 185, 129, 0.1);
    --shadow-panel: 0 8px 30px rgba(0, 0, 0, 0.4);
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    height: 100vh;
    overflow: hidden;
    -webkit-font-smoothing: antialiased;
}

/* --- Layout --- */
.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
}

/* --- Sidebar --- */
.sidebar {
    width: 300px;
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    z-index: 50;
    transition: transform 0.3s ease;
}

.sidebar-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1.25rem;
}

.logo-icon {
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 1.25rem;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.3);
}

.logo h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(to right, #fff, var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.search-box {
    position: relative;
}

.search-icon {
    position: absolute;
    left: 10px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-box input {
    width: 100%;
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.6rem 0.75rem 0.6rem 2.25rem;
    color: var(--text-main);
    font-family: var(--font-sans);
    font-size: 0.875rem;
    transition: all 0.2s ease;
}

.search-box input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px var(--primary-dim);
}

.sidebar-content {
    flex: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

/* Custom Scrollbar for dark theme */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary);
}

.nav-category {
    margin-bottom: 0.5rem;
}

.nav-category-title {
    padding: 0.5rem 1.5rem;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 1.5rem 0.5rem 2.5rem;
    cursor: pointer;
    color: var(--text-muted);
    font-size: 0.875rem;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.nav-item:hover {
    background-color: var(--bg-surface-hover);
    color: var(--text-main);
}

.nav-item.active {
    background-color: var(--primary-dim);
    color: var(--primary);
    border-left-color: var(--primary);
    font-weight: 600;
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--border);
    /* neutral */
}

.status-dot.supported {
    background-color: var(--success);
    box-shadow: 0 0 5px var(--success);
}

.status-dot.unsupported {
    background-color: var(--danger);
    box-shadow: 0 0 5px var(--danger);
}

.status-dot.partial {
    background-color: var(--warning);
    box-shadow: 0 0 5px var(--warning);
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    background-color: var(--bg-surface);
}

.stats-badge {
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 0.5rem;
    text-align: center;
    font-size: 0.75rem;
    color: var(--secondary);
    font-weight: 600;
}

/* --- Main Content --- */
.content-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    background: radial-gradient(circle at top right, rgba(16, 185, 129, 0.05) 0%, transparent 40%), var(--bg-dark);
}

.mobile-header {
    display: none;
    align-items: center;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    background-color: var(--bg-surface);
}

.mobile-header h2 {
    font-size: 1.125rem;
    margin-left: 1rem;
}

.empty-state {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 2rem;
    max-width: 600px;
    margin: 0 auto;
}

.empty-icon {
    font-size: 4rem;
    color: var(--primary-dim);
    margin-bottom: 1.5rem;
}

.empty-state h2 {
    font-size: 2rem;
    margin-bottom: 1rem;
    color: white;
}

.empty-state p {
    color: var(--text-muted);
    font-size: 1.125rem;
    margin-bottom: 2rem;
}

.feature-pills {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
    justify-content: center;
}

.pill {
    background-color: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
    color: var(--secondary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* --- Main View --- */
.main-view {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 2rem 3rem;
}

.main-view.hidden {
    display: none;
}

.api-header {
    margin-bottom: 2rem;
}

.api-title-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 0.5rem;
}

.api-title-row h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    letter-spacing: -0.02em;
}

.api-badges {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.badge::before {
    content: '';
    display: block;
    width: 6px;
    height: 6px;
    border-radius: 50%;
}

.badge.supported {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge.supported::before {
    background: var(--success);
}

.badge.unsupported {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge.unsupported::before {
    background: var(--danger);
}

.badge.partial {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge.partial::before {
    background: var(--warning);
}

.badge.perm-granted {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge.perm-denied {
    background: rgba(239, 68, 68, 0.1);
    color: var(--danger);
    border: 1px solid rgba(239, 68, 68, 0.3);
}

.badge.perm-prompt {
    background: rgba(245, 158, 11, 0.1);
    color: var(--warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge.hidden {
    display: none;
}

.api-desc {
    font-size: 1.125rem;
    color: var(--text-muted);
    max-width: 800px;
    margin-bottom: 1rem;
}

.mdn-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--secondary);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.2s;
}

.mdn-link:hover {
    color: white;
    text-decoration: underline;
}

/* --- Split Pane --- */
.split-pane {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    flex: 1;
}

.pane {
    background-color: var(--bg-panel);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    box-shadow: var(--shadow-panel);
}

.pane-header {
    background-color: rgba(0, 0, 0, 0.2);
    padding: 1rem 1.25rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.pane-header h3 {
    font-size: 0.875rem;
    font-weight: 600;
    color: white;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pane-header h3 i {
    color: var(--primary);
}

/* Code Pane */
.code-wrapper {
    flex: 1;
    overflow: auto;
    padding: 1.5rem;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    line-height: 1.5;
}

.code-wrapper pre {
    margin: 0;
}

.code-wrapper code {
    white-space: pre;
}

/* Basic Syntax Highlighting Colors */
.token.keyword {
    color: #C678DD;
}

.token.function {
    color: #61AFEF;
}

.token.string {
    color: #98C379;
}

.token.comment {
    color: #5C6370;
    font-style: italic;
}

.token.variable {
    color: #E06C75;
}

.token.operator {
    color: #56B6C2;
}

/* Demo Pane */
.demo-wrapper {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1.5rem;
    gap: 1.5rem;
}

.demo-ui {
    min-height: 100px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Specific Demo UI elements added dynamically */
.demo-input {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    color: white;
    padding: 0.75rem;
    border-radius: var(--radius);
    font-family: inherit;
    width: 100%;
}

.demo-input:focus {
    outline: none;
    border-color: var(--primary);
}

/* Log Console */
.log-console {
    flex: 1;
    background-color: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.log-header {
    background-color: rgba(255, 255, 255, 0.02);
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.log-output {
    flex: 1;
    padding: 1rem;
    overflow-y: auto;
    font-family: var(--font-mono);
    font-size: 0.75rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.log-entry {
    padding-left: 1rem;
    position: relative;
    word-break: break-all;
}

.log-entry::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--primary);
}

.log-entry.error {
    color: var(--danger);
}

.log-entry.error::before {
    color: var(--danger);
    content: 'x';
}

.log-entry.success {
    color: var(--success);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.btn-primary {
    background-color: var(--primary);
    color: var(--bg-dark);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.3);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.4);
}

.btn-primary:active {
    transform: translateY(1px);
}

.btn-icon {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
    width: 36px;
    height: 36px;
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-icon:hover {
    background: var(--bg-surface-hover);
    color: white;
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

.btn-icon-small {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
    transition: color 0.2s;
}

.btn-icon-small:hover {
    color: var(--danger);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-surface);
    border: 1px solid var(--primary);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 30px;
    font-weight: 500;
    font-size: 0.875rem;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5), var(--shadow-glow);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 1000;
    pointer-events: none;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
}

/* Responsiveness */
@media (max-width: 1024px) {
    .split-pane {
        grid-template-columns: 1fr;
    }

    .main-view {
        padding: 1.5rem;
    }
}

@media (max-width: 768px) {
    .app-container {
        position: relative;
    }

    .sidebar {
        position: absolute;
        left: 0;
        top: 0;
        bottom: 0;
        transform: translateX(-100%);
    }

    .sidebar.open {
        transform: translateX(0);
        box-shadow: 0 0 50px rgba(0, 0, 0, 0.8);
    }

    .mobile-header {
        display: flex;
    }

    .main-view {
        padding: 1rem;
    }
}