/* Custom CSS for ChatLab Platform - Premium Dark Theme & Glassmorphism */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    --bg-main: #0b0f19;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-sidebar: #0f172a;
    --border-color: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(99, 102, 241, 0.2);
    
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-glow: rgba(99, 102, 241, 0.4);
    
    --accent: #a855f7;
    --accent-hover: #9333ea;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-body);
    background-color: var(--bg-main);
    color: var(--text-primary);
    overflow-x: hidden;
    line-height: 1.5;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    letter-spacing: -0.02em;
    color: var(--text-primary);
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition);
}

/* Glassmorphism Classes */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 0;
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
    transition: var(--transition);
}

.glass-card:hover {
    border-color: rgba(99, 102, 241, 0.25);
    box-shadow: 0 12px 40px 0 rgba(99, 102, 241, 0.1);
}

/* Landing Page Styles */
.landing-hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 2rem;
    background: radial-gradient(circle at top, rgba(99, 102, 241, 0.15) 0%, rgba(11, 15, 25, 0) 60%);
}

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

.hero-title {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 2.5rem;
}

/* Premium Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-family: var(--font-heading);
    font-weight: 600;
    border-radius: 0;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    outline: none;
    font-size: 0.95rem;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 14px 0 rgba(99, 102, 241, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px 0 rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background: #dc2626;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.3);
    transform: translateY(-1px);
}

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

.sidebar {
    width: 280px;
    background-color: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 1.75rem;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.sidebar-logo {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.sidebar-logo-icon {
    width: 36px;
    height: 36px;
    border-radius: 0;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

.sidebar-menu {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    flex-grow: 1;
}

.sidebar-item a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-radius: 0;
    color: var(--text-secondary);
    font-weight: 500;
}

.sidebar-item.active a, .sidebar-item a:hover {
    color: var(--text-primary);
    background: rgba(99, 102, 241, 0.1);
    border-left: 3px solid var(--primary);
}

.sidebar-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 1.25rem;
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 0;
    background: var(--accent-gradient);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: #fff;
}

.user-details {
    display: flex;
    flex-direction: column;
}

.username {
    font-weight: 600;
    font-size: 0.9rem;
}

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

/* Main Workspace Content */
.main-content {
    flex-grow: 1;
    margin-left: 280px;
    padding: 2.5rem;
    min-height: 100vh;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.page-title {
    font-size: 1.85rem;
}

.page-subtitle {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 0.25rem;
}

/* Stats Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    padding: 1.5rem;
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    font-family: var(--font-heading);
    margin: 0.5rem 0;
}

.stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Styled Table */
.table-container {
    width: 100%;
    overflow-x: auto;
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.custom-table th {
    padding: 1rem 1.5rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
}

.custom-table td {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.custom-table tr {
    transition: var(--transition);
}

.custom-table tr:hover td {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.02);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.6rem;
    border-radius: 0;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: capitalize;
}

.badge-gemini {
    background: rgba(16, 185, 129, 0.1);
    color: var(--success);
    border: 1px solid rgba(16, 185, 129, 0.2);
}

.badge-openai {
    background: rgba(168, 85, 247, 0.1);
    color: var(--accent);
    border: 1px solid rgba(168, 85, 247, 0.2);
}

/* Interactive Forms */
.form-container {
    max-width: 650px;
}

.form-group {
    margin-bottom: 1.5rem;
    display: flex;
    flex-direction: column;
}

.form-label {
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

.form-input, .form-select, .form-textarea {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
    outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--border-glow);
    background: rgba(255, 255, 255, 0.05);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

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

/* Chat Sandbox Styles */
.sandbox-layout {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem;
    height: calc(100vh - 180px);
}

.chat-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.chat-history {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.chat-message {
    max-width: 75%;
    padding: 0.85rem 1.25rem;
    border-radius: 0;
    line-height: 1.45;
    position: relative;
    word-break: break-word;
}

.chat-message.user {
    align-self: flex-end;
    background: var(--accent-gradient);
    color: #fff;
    border-bottom-right-radius: 0;
}

.chat-message.bot {
    align-self: flex-start;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-bottom-left-radius: 0;
}

.chat-message.system-error {
    align-self: center;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    text-align: center;
    font-size: 0.85rem;
    max-width: 90%;
}

.chat-input-bar {
    padding: 1.25rem;
    display: flex;
    gap: 0.75rem;
}

.chat-input {
    flex-grow: 1;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: 0;
    padding: 0.75rem 1.25rem;
    color: var(--text-primary);
    outline: none;
    font-family: var(--font-body);
    font-size: 0.95rem;
    transition: var(--transition);
}

.chat-input:focus {
    border-color: var(--primary);
    background: rgba(255, 255, 255, 0.05);
}

.bot-info-sidebar {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    overflow-y: auto;
}

.bot-info-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
}

.bot-info-item h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--text-muted);
    margin-bottom: 0.25rem;
    letter-spacing: 0.05em;
}

.bot-info-item p {
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.bot-prompt-box {
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    border-radius: 0;
    font-size: 0.85rem;
    font-family: monospace;
    max-height: 200px;
    overflow-y: auto;
    white-space: pre-wrap;
    color: var(--text-secondary);
}

/* Authentication Card Layout */
.auth-container {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
    background: radial-gradient(circle at center, rgba(168, 85, 247, 0.05) 0%, rgba(11, 15, 25, 0) 70%);
}

.auth-card {
    width: 100%;
    max-width: 420px;
    padding: 2.5rem;
}

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

.auth-logo {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 0;
    background: var(--accent-gradient);
    color: #fff;
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.auth-title {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.auth-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.auth-error {
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.2);
    color: #fca5a5;
    padding: 0.75rem 1rem;
    border-radius: 0;
    font-size: 0.85rem;
    margin-bottom: 1.5rem;
}

/* Typing Indicator Animation */
.typing-indicator {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0.25rem 0.5rem;
}

.typing-dot {
    width: 6px;
    height: 6px;
    border-radius: 0;
    background: var(--text-muted);
    animation: typing 1.4s infinite ease-in-out both;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

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