* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #7c3aed;
    --accent: #06b6d4;
    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;
    --light: #f8fafc;
    --dark: #1e293b;
    --gray: #64748b;
}

body {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: var(--dark);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.header {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--dark);
}

.logo-icon {
    font-size: 1.8rem;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 5px 10px;
    border-radius: 5px;
}

.nav-links a:hover {
    color: var(--primary);
    background: rgba(37, 99, 235, 0.1);
}

/* Hero Section */
.hero {
    padding: 6rem 0;
    color: white;
    text-align: center;
}

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-content p {
    font-size: 1.3rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

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

.badge {
    background: rgba(255, 255, 255, 0.2);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: 500;
    backdrop-filter: blur(10px);
}

/* Quick Start Section */
.quick-start {
    background: white;
    padding: 5rem 0;
}

.quick-start h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    color: var(--dark);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.tool-card {
    background: var(--light);
    padding: 2.5rem;
    border-radius: 15px;
    text-align: center;
    border: 2px solid transparent;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.tool-card[data-tool="career"]:hover {
    border-color: var(--success);
}

.tool-card[data-tool="resume"]:hover {
    border-color: var(--accent);
}

.tool-icon {
    font-size: 3rem;
    margin-bottom: 1rem;
}

.tool-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

.tool-card p {
    color: var(--gray);
    margin-bottom: 1.5rem;
}

.tool-examples {
    text-align: left;
    background: white;
    padding: 1.5rem;
    border-radius: 10px;
    border-left: 4px solid var(--primary);
}

.tool-examples ul {
    list-style: none;
    margin-top: 0.5rem;
}

.tool-examples li {
    padding: 0.5rem 0;
    color: var(--gray);
    border-bottom: 1px solid #e2e8f0;
}

.tool-examples li:last-child {
    border-bottom: none;
}

/* Features Section */
.features {
    padding: 5rem 0;
    background: linear-gradient(135deg, #f0f9ff 0%, #e0f2fe 100%);
}

.features h2 {
    text-align: center;
    margin-bottom: 3rem;
    font-size: 2.5rem;
    color: var(--dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.feature-item {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-item:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-item h3 {
    margin-bottom: 1rem;
    color: var(--dark);
}

.feature-item p {
    color: var(--gray);
}

/* Chat Section */
.chat-section {
    padding: 5rem 0;
    background: white;
}

.chat-header {
    text-align: center;
    margin-bottom: 3rem;
}

.chat-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--dark);
}

.chat-header p {
    color: var(--gray);
    font-size: 1.1rem;
}

.chat-container {
    background: var(--light);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    height: 600px;
}

#chat-root {
    width: 100%;
    height: 100%;
}

/* Footer */
.footer {
    background: var(--dark);
    color: white;
    padding: 4rem 0 2rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section h3 {
    margin-bottom: 1rem;
    color: var(--accent);
}

.footer-section p {
    color: #cbd5e1;
    line-height: 1.6;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid #334155;
    color: #94a3b8;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.5rem;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
    }
    
    .tool-card {
        padding: 2rem;
    }
    
    .nav-links {
        gap: 1rem;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .chat-container {
        height: 500px;
    }
}