/* SteelMe Design System */
:root {
    /* Colors */
    --bg-primary: #0d0d0f;
    --bg-secondary: #151518;
    --bg-tertiary: #1c1c21;
    --bg-card: #18181c;
    
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 100%);
    
    --steelman: #10b981;
    --steelman-bg: rgba(16, 185, 129, 0.1);
    
    --common-ground: #f59e0b;
    --common-ground-bg: rgba(245, 158, 11, 0.1);
    
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --text-muted: #71717a;
    
    --border-color: #27272a;
    --border-light: #3f3f46;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.2);
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    
    /* Radius */
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
    
    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

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

/* App Container */
.app-container {
    max-width: 800px;
    margin: 0 auto;
    padding: var(--spacing-md);
    padding-bottom: 100px;
}

/* Header */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-xl);
    border-bottom: 1px solid var(--border-color);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav {
    display: flex;
    gap: var(--spacing-xs);
    background: var(--bg-secondary);
    padding: var(--spacing-xs);
    border-radius: var(--radius-md);
}

.nav-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: var(--radius-sm);
    transition: all 0.2s ease;
}

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

.nav-btn.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.profile-btn {
    background: none;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-full);
    padding: 2px;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.profile-btn:hover {
    border-color: var(--accent-primary);
}

.avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
}

/* Hero Section */
.hero {
    text-align: center;
    margin-bottom: var(--spacing-2xl);
}

.hero h1 {
    font-size: 2.25rem;
    font-weight: 800;
    margin-bottom: var(--spacing-sm);
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

/* Cards */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.card-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
}

.card-icon {
    font-size: 1.25rem;
}

.card-header h2 {
    font-size: 1.125rem;
    font-weight: 600;
    flex: 1;
}

.badge {
    background: var(--steelman-bg);
    color: var(--steelman);
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

/* Input Groups */
.input-group {
    margin-bottom: var(--spacing-lg);
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

select, textarea {
    width: 100%;
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

select:focus, textarea:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

textarea {
    min-height: 120px;
    resize: vertical;
    line-height: 1.6;
}

textarea::placeholder {
    color: var(--text-muted);
}

/* Depth Options */
.depth-options {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-sm);
}

.depth-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-xs);
    padding: var(--spacing-md);
    background: var(--bg-secondary);
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
}

.depth-btn:hover {
    border-color: var(--border-light);
}

.depth-btn.active {
    border-color: var(--accent-primary);
    background: rgba(99, 102, 241, 0.1);
}

.depth-icon {
    font-size: 1.5rem;
}

.depth-label {
    font-weight: 600;
    color: var(--text-primary);
}

.depth-desc {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Confidence Slider */
.confidence-input {
    margin-bottom: var(--spacing-lg);
}

.confidence-input label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.confidence-slider {
    padding: 0 var(--spacing-sm);
}

.confidence-slider input[type="range"] {
    width: 100%;
    height: 8px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--bg-tertiary);
    border-radius: var(--radius-full);
    outline: none;
}

.confidence-slider input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--accent-gradient);
    border-radius: var(--radius-full);
    cursor: pointer;
    box-shadow: var(--shadow-md);
}

.confidence-labels {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--spacing-sm);
    font-size: 0.75rem;
    color: var(--text-muted);
}

.confidence-value {
    font-size: 1rem;
    font-weight: 700;
    color: var(--accent-primary);
}

/* Buttons */
.primary-btn, .secondary-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.primary-btn {
    width: 100%;
    background: var(--accent-gradient);
    color: white;
    box-shadow: var(--shadow-glow);
}

.primary-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 60px rgba(99, 102, 241, 0.3);
}

.secondary-btn {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.secondary-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-light);
}

.btn-icon {
    font-size: 1.125rem;
}

/* Loading State */
.loading-card {
    text-align: center;
    padding: var(--spacing-2xl);
}

.loading-animation {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
}

.loading-icon {
    font-size: 3rem;
    animation: pulse 1.5s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 1; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

.loading-text {
    font-size: 1.125rem;
    color: var(--text-secondary);
}

.loading-dots {
    display: flex;
    gap: var(--spacing-xs);
}

.loading-dots span {
    width: 8px;
    height: 8px;
    background: var(--accent-primary);
    border-radius: var(--radius-full);
    animation: bounce 1.4s ease-in-out infinite;
}

.loading-dots span:nth-child(1) { animation-delay: -0.32s; }
.loading-dots span:nth-child(2) { animation-delay: -0.16s; }

@keyframes bounce {
    0%, 80%, 100% { transform: scale(0); }
    40% { transform: scale(1); }
}

/* Recap Card */
.recap-card blockquote {
    font-style: italic;
    color: var(--text-secondary);
    padding-left: var(--spacing-lg);
    border-left: 3px solid var(--border-light);
}

/* Steelman Card */
.steelman-card {
    border-color: var(--steelman);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(16, 185, 129, 0.05) 100%);
}

.steelman-content {
    line-height: 1.8;
}

.steelman-content h3 {
    font-size: 1.125rem;
    margin: var(--spacing-lg) 0 var(--spacing-sm);
    color: var(--steelman);
}

.steelman-content h3:first-child {
    margin-top: 0;
}

.steelman-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-md);
}

.steelman-content ul {
    margin: var(--spacing-md) 0;
    padding-left: var(--spacing-lg);
}

.steelman-content li {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-sm);
}

/* Common Ground Card */
.common-ground-card {
    border-color: var(--common-ground);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(245, 158, 11, 0.05) 100%);
}

.common-ground-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.common-point {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-sm);
    padding: var(--spacing-md);
    background: var(--common-ground-bg);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}

.common-point::before {
    content: '🤝';
    flex-shrink: 0;
}

/* Reflection Card */
.reflection-content p {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
}

.confidence-comparison {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-lg);
    flex-wrap: wrap;
}

.confidence-before, .confidence-after {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-sm);
}

.conf-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
}

.conf-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-primary);
}

.confidence-arrow {
    font-size: 1.5rem;
    color: var(--text-muted);
}

.conf-buttons {
    display: flex;
    gap: var(--spacing-xs);
}

.conf-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 0.875rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.conf-btn:hover {
    background: var(--bg-tertiary);
    border-color: var(--border-light);
    color: var(--text-primary);
}

.conf-btn.selected {
    background: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.reflection-message {
    text-align: center;
    padding: var(--spacing-lg);
    margin-top: var(--spacing-lg);
    background: var(--bg-secondary);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
}

.reflection-message.updated {
    background: rgba(16, 185, 129, 0.1);
    color: var(--steelman);
}

.reflection-message.unchanged {
    background: rgba(99, 102, 241, 0.1);
    color: var(--accent-primary);
}

/* Actions Row */
.actions-row {
    display: flex;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.actions-row .secondary-btn {
    flex: 1;
    min-width: 140px;
}

.actions-row .primary-btn {
    flex: 1;
    min-width: 180px;
}

/* Views */
.view {
    display: none;
}

.view.active {
    display: block;
}

/* Journal View */
.journal-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.journal-entry {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    cursor: pointer;
    transition: all 0.2s ease;
}

.journal-entry:hover {
    border-color: var(--border-light);
    transform: translateX(4px);
}

.entry-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: var(--spacing-sm);
}

.entry-topic {
    background: var(--accent-gradient);
    color: white;
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.entry-date {
    color: var(--text-muted);
    font-size: 0.875rem;
}

.entry-opinion {
    color: var(--text-primary);
    font-weight: 500;
    margin-bottom: var(--spacing-md);
}

.entry-change {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--text-muted);
}

.conf-badge {
    padding: var(--spacing-xs) var(--spacing-sm);
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.conf-badge.before {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
}

.conf-badge.after {
    background: var(--steelman-bg);
    color: var(--steelman);
}

.change-label {
    color: var(--steelman);
}

/* Stats View */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
}

.stat-card.highlight {
    border-color: var(--accent-primary);
    background: linear-gradient(135deg, var(--bg-card) 0%, rgba(99, 102, 241, 0.1) 100%);
}

.stat-value {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--accent-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-top: var(--spacing-xs);
}

.stat-detail {
    color: var(--text-muted);
    font-size: 0.75rem;
    margin-top: var(--spacing-xs);
}

.insight-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

.insight-card strong {
    color: var(--accent-primary);
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-lg);
    background: var(--steelman);
    color: white;
    border-radius: var(--radius-full);
    font-weight: 500;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    transition: all 0.3s ease;
}

.toast.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Responsive */
@media (max-width: 600px) {
    .app-container {
        padding: var(--spacing-sm);
    }
    
    .header {
        flex-wrap: wrap;
        gap: var(--spacing-sm);
    }
    
    .nav {
        order: 3;
        width: 100%;
        justify-content: center;
    }
    
    .hero h1 {
        font-size: 1.75rem;
    }
    
    .depth-options {
        grid-template-columns: 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .conf-buttons {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    .actions-row {
        flex-direction: column;
    }
    
    .actions-row .secondary-btn,
    .actions-row .primary-btn {
        width: 100%;
    }
}