/* 
 * GraphRAG Dashboard Design System 
 * Premium, dark-mode, glassmorphic aesthetic.
 */

:root {
    /* Color Palette - HSL tailored for premium dark mode */
    --bg-base: hsl(230, 25%, 8%);
    --bg-surface: hsl(230, 20%, 12%);
    --bg-glass: hsla(230, 20%, 15%, 0.6);
    --bg-glass-hover: hsla(230, 20%, 20%, 0.7);
    
    --border-glass: hsla(0, 0%, 100%, 0.08);
    --border-strong: hsla(0, 0%, 100%, 0.15);
    
    --text-primary: hsl(0, 0%, 98%);
    --text-secondary: hsl(230, 15%, 70%);
    --text-tertiary: hsl(230, 15%, 50%);
    
    /* Accents */
    --accent-orange: hsl(28, 90%, 55%);
    --accent-orange-glow: hsla(28, 90%, 55%, 0.3);
    
    --accent-blue: hsl(210, 100%, 60%);
    --accent-purple: hsl(260, 100%, 65%);
    
    --status-success: hsl(150, 80%, 45%);
    --status-success-bg: hsla(150, 80%, 45%, 0.15);
    
    --status-pending: hsl(40, 90%, 50%);
    --status-pending-bg: hsla(40, 90%, 50%, 0.15);
    
    --status-error: hsl(350, 80%, 60%);
    --status-error-bg: hsla(350, 80%, 60%, 0.15);

    /* Typography */
    --font-sans: 'Inter', system-ui, sans-serif;
    --font-display: 'Outfit', system-ui, sans-serif;
    --font-mono: 'Fira Code', monospace;
    
    /* Animation Tokens */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Shadows */
    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --shadow-glow: 0 0 20px var(--accent-orange-glow);
}

/* Reset & Base */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

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

/* Background Ambient Glows */
.bg-glow {
    position: fixed;
    width: 60vw;
    height: 60vw;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.4;
}

.bg-glow.top-left {
    top: -20vw;
    left: -20vw;
    background: radial-gradient(circle, var(--accent-purple) 0%, transparent 70%);
    opacity: 0.15;
}

.bg-glow.bottom-right {
    bottom: -20vw;
    right: -20vw;
    background: radial-gradient(circle, var(--accent-orange) 0%, transparent 70%);
    opacity: 0.1;
}

/* Typography Utilities */
h1, h2, h3 {
    font-family: var(--font-display);
    font-weight: 600;
    line-height: 1.2;
}

.accent {
    background: linear-gradient(135deg, var(--accent-orange), #ff8c42);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Layout */
.app-container {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 2rem 4rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Header */
.glass-header {
    margin-top: 1.5rem;
    padding: 1.25rem 2rem;
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
    box-shadow: var(--shadow-glass);
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--accent-orange), #e85d04);
    border-radius: 10px;
    font-size: 1.5rem;
    color: white;
    box-shadow: var(--shadow-glow);
}

.header-meta {
    display: flex;
    gap: 0.75rem;
}

.badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.35rem 0.75rem;
    background: hsla(0,0%,100%,0.05);
    border: 1px solid var(--border-glass);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Query Section */
.glass-panel {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
    padding: 2rem;
    box-shadow: var(--shadow-glass);
}

.query-header {
    text-align: center;
    margin-bottom: 2rem;
}

.query-header p {
    color: var(--text-secondary);
    margin-top: 0.5rem;
}

.query-form {
    max-width: 800px;
    margin: 0 auto;
}

.input-group {
    position: relative;
    display: flex;
    align-items: center;
    background: var(--bg-surface);
    border: 1px solid var(--border-strong);
    border-radius: 3rem;
    padding: 0.5rem 0.5rem 0.5rem 1.5rem;
    transition: var(--transition-normal);
}

.input-group:focus-within {
    border-color: var(--accent-orange);
    box-shadow: 0 0 0 4px var(--accent-orange-glow);
}

.search-icon {
    font-size: 1.25rem;
    color: var(--text-tertiary);
}

#question-input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-size: 1.1rem;
    padding: 0.5rem 1rem;
    outline: none;
    font-family: var(--font-sans);
}

#question-input::placeholder {
    color: var(--text-tertiary);
}

.btn-primary {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background: var(--text-primary);
    color: var(--bg-base);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 2rem;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-fast);
}

.btn-primary:hover {
    background: var(--accent-orange);
    color: white;
    transform: translateY(-1px);
}

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

.btn-primary:disabled {
    opacity: 0.7;
    cursor: not-allowed;
    transform: none;
}

.quick-queries {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.tag-btn {
    background: hsla(0,0%,100%,0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-secondary);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition-fast);
    font-family: var(--font-sans);
}

.tag-btn:hover {
    background: hsla(0,0%,100%,0.1);
    color: var(--text-primary);
    border-color: hsla(0,0%,100%,0.3);
}

/* Orchestrator Status */
.orchestrator-status {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
    padding: 1rem;
    background: hsla(0,0%,100%,0.02);
    border-radius: 0.5rem;
    color: var(--accent-blue);
    font-weight: 500;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.timer {
    font-family: var(--font-mono);
    color: var(--text-secondary);
    background: var(--bg-base);
    padding: 0.2rem 0.5rem;
    border-radius: 4px;
}

/* Results Grid */
.results-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
    margin-top: 1rem;
    opacity: 1;
    transition: opacity var(--transition-normal);
}

/* Cards */
.pipeline-card {
    background: var(--bg-glass);
    backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    border-radius: 1rem;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    transition: var(--transition-normal);
    position: relative;
}

.pipeline-card:hover {
    border-color: var(--border-strong);
    transform: translateY(-2px);
    box-shadow: 0 10px 40px rgba(0,0,0,0.4);
}

.featured-card {
    border: 1px solid var(--accent-orange-glow);
    box-shadow: 0 0 30px hsla(28, 90%, 55%, 0.1);
}

.featured-card:hover {
    border-color: var(--accent-orange);
    box-shadow: 0 0 40px hsla(28, 90%, 55%, 0.15);
}

/* Card Header */
.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-glass);
    background: rgba(0,0,0,0.2);
}

.card-title {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.card-title i {
    font-size: 1.5rem;
}

.base-header i { color: var(--text-tertiary); }
.rag-header i { color: var(--accent-blue); }
.graph-header i { color: var(--accent-orange); }

.card-title h3 {
    font-size: 1.1rem;
    font-weight: 600;
}

.status-badge {
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-badge.pending {
    background: var(--status-pending-bg);
    color: var(--status-pending);
    border: 1px solid hsla(40, 90%, 50%, 0.3);
}

.status-badge.success {
    background: var(--status-success-bg);
    color: var(--status-success);
    border: 1px solid hsla(150, 80%, 45%, 0.3);
}

.status-badge.error {
    background: var(--status-error-bg);
    color: var(--status-error);
    border: 1px solid hsla(350, 80%, 60%, 0.3);
}

/* Reduction Banner (GraphRAG specific) */
.reduction-banner {
    background: linear-gradient(90deg, hsla(28, 90%, 55%, 0.2), transparent);
    border-bottom: 1px solid var(--border-glass);
    padding: 0.5rem 1.5rem;
    color: var(--accent-orange);
    font-weight: 600;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Metrics Grid */
.card-metrics {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-glass);
    background: hsla(0,0%,0%,0.1);
}

.metric {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.metric .label {
    font-size: 0.75rem;
    color: var(--text-tertiary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.metric .value {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.metric.highlight .value {
    color: var(--status-success);
}

.metric.highlight-cost .value {
    color: var(--accent-orange);
}

/* Answer Content */
.card-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
}

.answer-box {
    flex: 1;
    font-size: 0.95rem;
    color: var(--text-secondary);
    line-height: 1.6;
    overflow-y: auto;
    max-height: 400px;
    padding-right: 0.5rem;
}

.answer-box::-webkit-scrollbar {
    width: 6px;
}

.answer-box::-webkit-scrollbar-track {
    background: transparent;
}

.answer-box::-webkit-scrollbar-thumb {
    background: var(--border-strong);
    border-radius: 3px;
}

.placeholder-text {
    color: var(--text-tertiary);
    font-style: italic;
    text-align: center;
    margin-top: 2rem;
}

.featured-answer {
    color: var(--text-primary);
}

/* Markdown Styles within Answer */
.answer-text h1, .answer-text h2, .answer-text h3 {
    color: var(--text-primary);
    margin: 1rem 0 0.5rem;
    font-size: 1.1em;
}

.answer-text p {
    margin-bottom: 1rem;
}

.answer-text ul, .answer-text ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.answer-text li {
    margin-bottom: 0.25rem;
}

.answer-text strong {
    color: var(--text-primary);
}

/* Error Banner */
.error-banner {
    margin-top: 1.5rem;
    background: var(--status-error-bg);
    border: 1px solid var(--status-error);
    color: hsl(350, 100%, 80%);
    padding: 1rem;
    border-radius: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 500;
}

/* Utilities */
.hidden {
    display: none !important;
}

/* Responsive */
@media (max-width: 1200px) {
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .answer-box {
        max-height: none;
    }
}