/* =====================================================
   Companion Chat Framework - Main Stylesheet
   ===================================================== */

:root {
    --color-primary: #6366f1;
    --color-primary-hover: #4f46e5;
    --color-secondary: #64748b;
    --color-background: #0f172a;
    --color-surface: #1e293b;
    --color-surface-hover: #334155;
    --color-text: #f8fafc;
    --color-text-muted: #94a3b8;
    --color-border: #334155;
    --color-success: #22c55e;
    --color-warning: #f59e0b;
    --color-error: #ef4444;
    --color-agentic: #a855f7;
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--color-background);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    color: var(--color-primary);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--color-primary-hover);
}

/* =====================================================
   Navigation
   ===================================================== */

.navbar {
    background-color: var(--color-surface);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar-brand a {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-text);
}

.navbar-links {
    display: flex;
    gap: 1.5rem;
}

.navbar-links a {
    color: var(--color-text-muted);
    font-weight: 500;
}

.navbar-links a:hover {
    color: var(--color-text);
}

/* =====================================================
   Layout
   ===================================================== */

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
}

footer {
    background-color: var(--color-surface);
    padding: 1rem 2rem;
    text-align: center;
    color: var(--color-text-muted);
    border-top: 1px solid var(--color-border);
    margin-top: auto;
}

/* =====================================================
   Buttons
   ===================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.875rem;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    text-decoration: none;
}

.btn-primary {
    background-color: var(--color-primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--color-primary-hover);
    color: white;
}

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

.btn-secondary:hover {
    background-color: var(--color-border);
    color: var(--color-text);
}

.btn-outline {
    background-color: transparent;
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
}

.btn-outline:hover {
    border-color: var(--color-text-muted);
    color: var(--color-text);
}

.btn-sm {
    padding: 0.375rem 0.75rem;
    font-size: 0.75rem;
}

/* =====================================================
   Forms
   ===================================================== */

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--color-text);
}

.form-control {
    width: 100%;
    padding: 0.625rem 0.875rem;
    background-color: var(--color-background);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    color: var(--color-text);
    font-size: 0.875rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 2px rgba(99, 102, 241, 0.2);
}

textarea.form-control {
    resize: vertical;
    min-height: 80px;
}

.help-text {
    display: block;
    margin-top: 0.375rem;
    font-size: 0.75rem;
    color: var(--color-text-muted);
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 1rem;
    height: 1rem;
    accent-color: var(--color-primary);
}

/* =====================================================
   Home Page
   ===================================================== */

.home-page {
    text-align: center;
}

.hero {
    padding: 4rem 2rem;
}

.hero h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--color-primary), var(--color-agentic));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

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

.hero-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.feature-card {
    background-color: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.feature-card h3 {
    margin-bottom: 0.5rem;
    color: var(--color-primary);
}

.feature-card p {
    color: var(--color-text-muted);
    font-size: 0.875rem;
}

/* =====================================================
   Companions Page
   ===================================================== */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

.companions-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.companion-card {
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    transition: transform 0.2s, box-shadow 0.2s;
}

.companion-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.companion-avatar {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    overflow: hidden;
    margin: 0 auto;
}

.companion-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-agentic));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.companion-info h2 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

.companion-description {
    color: var(--color-text-muted);
    font-size: 0.875rem;
    margin-bottom: 0.75rem;
}

.companion-meta {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-agentic {
    background-color: rgba(168, 85, 247, 0.2);
    color: var(--color-agentic);
}

.badge-passive {
    background-color: rgba(100, 116, 139, 0.2);
    color: var(--color-text-muted);
}

.badge-model {
    background-color: rgba(99, 102, 241, 0.2);
    color: var(--color-primary);
}

.badge-temp {
    background-color: rgba(245, 158, 11, 0.2);
    color: var(--color-warning);
}

.companion-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: auto;
}

/* =====================================================
   Companion Edit/Details Page
   ===================================================== */

.companion-form, .companion-details-page {
    max-width: 800px;
    margin: 0 auto;
}

.form-section {
    background-color: var(--color-surface);
    padding: 1.5rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
}

.form-section h2 {
    font-size: 1.125rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--color-border);
}

.form-actions {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.prompt-display {
    background-color: var(--color-background);
    padding: 1rem;
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    white-space: pre-wrap;
    border: 1px solid var(--color-border);
    max-height: 300px;
    overflow-y: auto;
}

.greeting-display {
    font-style: italic;
    color: var(--color-text-muted);
}

.settings-list {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.5rem 1rem;
}

.settings-list dt {
    font-weight: 500;
    color: var(--color-text-muted);
}

.companion-header {
    display: flex;
    gap: 1.5rem;
    align-items: center;
    margin-bottom: 2rem;
    padding: 1.5rem;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border);
}

.companion-avatar-large {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
}

.companion-avatar-large img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.avatar-placeholder-large {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--color-primary), var(--color-agentic));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
}

.companion-header-info h1 {
    margin-bottom: 0.25rem;
}

.detail-section {
    margin-bottom: 1.5rem;
}

.detail-section h2 {
    font-size: 1rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

/* =====================================================
   Empty State
   ===================================================== */

.empty-state {
    text-align: center;
    padding: 3rem;
    background-color: var(--color-surface);
    border-radius: var(--radius-lg);
    border: 1px dashed var(--color-border);
}

.empty-state p {
    color: var(--color-text-muted);
    margin-bottom: 1rem;
}

/* =====================================================
   Responsive
   ===================================================== */

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 1rem;
        padding: 1rem;
    }

    .container {
        padding: 1rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .hero-actions {
        flex-direction: column;
    }

    .companion-header {
        flex-direction: column;
        text-align: center;
    }

    .form-row {
        grid-template-columns: 1fr;
    }
}