/**
 * ╔═══════════════════════════════════════════════════════════════════════════════╗
 * ║  eCYRUS AI PLATFORM - Main Stylesheet                                         ║
 * ║  Modern, Professional Enterprise Design                                       ║
 * ╚═══════════════════════════════════════════════════════════════════════════════╝
 */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #ec4899;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    
    --bg-primary: #0f0f1a;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #252542;
    --bg-elevated: #2d2d4a;
    
    --text-primary: #f8fafc;
    --text-secondary: #cbd5e1;
    --text-muted: #64748b;
    
    --border: rgba(255, 255, 255, 0.1);
    --glass-bg: rgba(26, 26, 46, 0.8);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    
    --gradient-primary: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.3);
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;
    
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --text-primary: #0f172a;
    --text-secondary: #334155;
    --border: rgba(0, 0, 0, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.9);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
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 { display: flex; min-height: 100vh; }

.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 300;
    transition: transform var(--transition-normal);
}

.sidebar.collapsed { transform: translateX(-100%); }

.main-content {
    flex: 1;
    margin-left: 280px;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    transition: margin var(--transition-normal);
}

.sidebar.collapsed + .main-content { margin-left: 0; }

.sidebar-header {
    padding: 24px;
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    gap: 16px;
}

.sidebar-logo {
    width: 40px;
    height: 40px;
    background: var(--gradient-primary);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1.25rem;
    color: white;
}

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

.sidebar-nav { flex: 1; overflow-y: auto; padding: 16px; }

.nav-section { margin-bottom: 24px; }

.nav-section-title {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-muted);
    padding: 8px 16px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 12px 16px;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all var(--transition-fast);
    cursor: pointer;
}

.nav-item:hover { background: var(--bg-tertiary); color: var(--text-primary); }
.nav-item.active { background: rgba(99, 102, 241, 0.15); color: var(--primary); }

.header {
    height: 64px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    position: sticky;
    top: 0;
    z-index: 200;
}

.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    padding: 24px;
}

.messages-container { flex: 1; overflow-y: auto; padding: 24px 0; }

.message {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
    animation: messageIn 0.3s ease;
}

@keyframes messageIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.message.user { flex-direction: row-reverse; }

.message-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: var(--gradient-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.875rem;
    color: white;
    flex-shrink: 0;
}

.message.user .message-avatar { background: var(--bg-tertiary); color: var(--text-primary); }

.message-content {
    max-width: 80%;
    padding: 16px 20px;
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border);
}

.message.user .message-content { background: var(--primary); color: white; border-color: transparent; }

.message-content pre {
    background: var(--bg-primary);
    padding: 16px;
    border-radius: var(--radius-md);
    overflow-x: auto;
    font-family: var(--font-mono);
    font-size: 0.875rem;
    margin: 16px 0;
}

.message-content code {
    font-family: var(--font-mono);
    font-size: 0.875em;
    background: rgba(0, 0, 0, 0.2);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.input-area {
    padding: 24px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
}

.input-container {
    display: flex;
    gap: 16px;
    align-items: flex-end;
    max-width: 900px;
    margin: 0 auto;
}

.input-wrapper {
    flex: 1;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-fast);
}

.input-wrapper:focus-within { border-color: var(--primary); box-shadow: var(--shadow-glow); }

.message-input {
    width: 100%;
    min-height: 48px;
    max-height: 200px;
    padding: 16px;
    background: transparent;
    border: none;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    resize: none;
    outline: none;
}

.message-input::placeholder { color: var(--text-muted); }

.send-btn {
    width: 48px;
    height: 48px;
    border: none;
    background: var(--gradient-primary);
    color: white;
    cursor: pointer;
    border-radius: var(--radius-lg);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.send-btn:hover { transform: scale(1.05); box-shadow: var(--shadow-glow); }
.send-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.btn-primary { background: var(--gradient-primary); color: white; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-glow); }

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

.form-group { margin-bottom: 24px; }
.form-label { display: block; font-size: 0.875rem; font-weight: 500; color: var(--text-secondary); margin-bottom: 8px; }

.form-input {
    width: 100%;
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    transition: all var(--transition-fast);
}

.form-input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2); }

.card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 24px;
}

.worker-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; padding: 16px; }

.worker-indicator {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    background: var(--bg-tertiary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.7rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: all var(--transition-fast);
}

.worker-indicator.active { background: var(--primary); color: white; box-shadow: 0 0 10px rgba(99, 102, 241, 0.5); }
.worker-indicator.working { animation: workerPulse 1s ease infinite; }

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

.loading-dots { display: flex; gap: 4px; align-items: center; }
.loading-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--primary); animation: loadingDot 1.4s ease-in-out infinite; }
.loading-dot:nth-child(2) { animation-delay: 0.2s; }
.loading-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes loadingDot { 0%, 80%, 100% { transform: scale(0.6); opacity: 0.5; } 40% { transform: scale(1); opacity: 1; } }

@media (max-width: 768px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
    .message-content { max-width: 90%; }
}

.hidden { display: none; }
.text-center { text-align: center; }
.text-muted { color: var(--text-muted); }
.flex { display: flex; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-md { gap: 16px; }