:root {
    --primary: #FF9900; /* AWS Orange */
    --secondary: #232F3E; /* AWS Dark Blue */
    --accent: #00A1C9; /* AWS Light Blue */
    --light: #f8f9fa;
    --dark: #212529;
    --success: #4bb543;
    --warning: #ffcc00;
    --danger: #dc3545;
    --gray: #6c757d;
    --border-radius: 8px;
    --box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

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

body {
    background-color: #f5f7fb;
    color: var(--dark);
    line-height: 1.6;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
header {
    background-color: white;
    box-shadow: var(--box-shadow);
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary);
}

.logo i {
    color: var(--accent);
}

.nav-links {
    display: flex;
    gap: 25px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark);
    font-weight: 500;
    transition: var(--transition);
    position: relative;
}

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

.nav-links a.active {
    color: var(--primary);
}

.nav-links a.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--primary);
}

.auth-buttons {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 8px 20px;
    border-radius: var(--border-radius);
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

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

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

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

.btn-primary:hover {
    background-color: #e88a00;
}

/* Hero Section */
.hero {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--secondary) 0%, #131a22 100%);
    color: white;
    text-align: center;
    border-radius: 0 0 30px 30px;
}

.hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin-top: 30px;
}

.hero .btn {
    padding: 12px 30px;
    font-size: 1.1rem;
}

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

.btn-light:hover {
    background-color: #f0f0f0;
}

/* AWS Services Section */
.section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 50px;
}

.section-header h2 {
    font-size: 2.5rem;
    color: var(--dark);
    margin-bottom: 15px;
}

.section-header p {
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
}

.service-card {
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary);
}

.service-card:hover {
    transform: translateY(-5px);
}

.service-icon {
    width: 60px;
    height: 60px;
    background-color: rgba(255, 153, 0, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.service-icon i {
    font-size: 1.5rem;
    color: var(--primary);
}

.service-card h3 {
    font-size: 1.3rem;
    margin-bottom: 15px;
    color: var(--dark);
}

.service-card p {
    color: var(--gray);
    margin-bottom: 20px;
}

.service-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: var(--success);
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--success);
}

/* Architecture Diagram */
.architecture {
    background-color: white;
}

.arch-container {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

.arch-diagram {
    display: flex;
    flex-direction: column;
    gap: 40px;
    align-items: center;
}

.arch-row {
    display: flex;
    justify-content: center;
    gap: 30px;
    width: 100%;
}

.arch-component {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    width: 150px;
}

.arch-icon {
    width: 80px;
    height: 80px;
    background-color: white;
    border: 2px solid var(--primary);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--primary);
    box-shadow: var(--box-shadow);
}

.arch-label {
    text-align: center;
    font-weight: 600;
    color: var(--dark);
}

.arch-arrow {
    font-size: 1.5rem;
    color: var(--primary);
}

/* Event Demo Section */
.demo-section {
    background-color: #f8f9fa;
}

.demo-container {
    display: flex;
    gap: 40px;
    align-items: flex-start;
}

.event-form {
    flex: 1;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
}

.event-form h3 {
    margin-bottom: 20px;
    color: var(--dark);
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 10px 15px;
    border: 1px solid #ddd;
    border-radius: var(--border-radius);
    font-size: 1rem;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(255, 153, 0, 0.2);
}

.event-log {
    flex: 1;
    background-color: white;
    border-radius: var(--border-radius);
    padding: 30px;
    box-shadow: var(--box-shadow);
    max-height: 500px;
    overflow-y: auto;
}

.event-log h3 {
    margin-bottom: 20px;
    color: var(--dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.log-entries {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.log-entry {
    padding: 15px;
    border-radius: var(--border-radius);
    background-color: #f8f9fa;
    border-left: 4px solid var(--primary);
}

.log-entry.new {
    background-color: rgba(255, 153, 0, 0.05);
    border-left-color: var(--success);
}

.log-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 5px;
}

.log-title {
    font-weight: 600;
    color: var(--dark);
}

.log-time {
    font-size: 0.8rem;
    color: var(--gray);
}

.log-message {
    color: var(--gray);
    font-size: 0.9rem;
}

/* Footer */
footer {
    background-color: var(--secondary);
    color: white;
    padding: 60px 0 30px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 1.2rem;
    margin-bottom: 20px;
    position: relative;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 40px;
    height: 2px;
    background-color: var(--accent);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #adb5bd;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    transition: var(--transition);
}

.social-links a:hover {
    background-color: var(--primary);
    transform: translateY(-3px);
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #adb5bd;
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 992px) {
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .demo-container {
        flex-direction: column;
    }
    
    .arch-row {
        flex-wrap: wrap;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: column;
        gap: 15px;
    }
    
    .nav-links {
        gap: 15px;
    }
    
    .hero h1 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .section-header h2 {
        font-size: 2rem;
    }
}

@media (max-width: 576px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
}