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

:root {
    --primary-teal: #00A1B5;
    --secondary-navy: #2C3E50;
    --accent-blue: #3498DB;
    --light-teal: #E8F6F8;
    --dark-charcoal: #34495E;
    --success-green: #27AE60;
    --warning-orange: #F39C12;
    --light-gray: #F8F9FA;
    --border-color: #E0E6ED;
    --text-primary: #2C3E50;
    --text-secondary: #7F8C8D;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: #fff;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--primary-teal), var(--accent-blue));
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 2rem;
    font-weight: bold;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-item {
    position: relative;
}

.nav-link {
    color: white;
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 5px;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.nav-link:hover {
    background: rgba(255,255,255,0.1);
}

.dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    background: white;
    border-radius: 8px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.15);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.3s ease;
    min-width: 200px;
    z-index: 1001;
}

.nav-item:hover .dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.dropdown-item {
    padding: 0.75rem 1rem;
    color: var(--text-primary);
    text-decoration: none;
    display: block;
    border-bottom: 1px solid var(--border-color);
    transition: all 0.3s ease;
}

.dropdown-item:last-child {
    border-bottom: none;
}

.dropdown-item:hover {
    background: var(--light-teal);
    color: var(--primary-teal);
}

.cta-btn {
    background: white;
    color: var(--primary-teal);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
}

.cta-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--light-teal), rgba(52, 152, 219, 0.1));
    padding: 4rem 0;
    text-align: center;
}

.hero-content h1 {
    font-size: 3rem;
    margin-bottom: 1rem;
    color: var(--secondary-navy);
    font-weight: 700;
}

.hero-content p {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.metrics-row {
    display: flex;
    justify-content: center;
    gap: 3rem;
    margin: 2rem 0;
    flex-wrap: wrap;
}

.metric {
    text-align: center;
}

.metric-value {
    font-size: 2.5rem;
    font-weight: bold;
    color: var(--primary-teal);
    display: block;
}

.metric-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Main Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Tab Navigation */
.tab-navigation {
    display: flex;
    background: var(--light-gray);
    border-radius: 10px;
    padding: 0.5rem;
    margin: 2rem 0;
    overflow-x: auto;
    gap: 0.5rem;
}

.tab-btn {
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    min-width: fit-content;
}

.tab-btn.active {
    background: var(--primary-teal);
    color: white;
    box-shadow: 0 2px 10px rgba(0, 161, 181, 0.3);
}

.tab-btn:hover:not(.active) {
    background: rgba(0, 161, 181, 0.1);
    color: var(--primary-teal);
}

/* Tab Content */
.tab-content {
    display: none;
    padding: 2rem 0;
}

.tab-content.active {
    display: block;
}

/* Collapsible Sections */
.collapsible-section {
    margin: 2rem 0;
    border: 1px solid var(--border-color);
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.section-header {
    background: linear-gradient(135deg, var(--light-teal), rgba(255,255,255,0.8));
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.section-header:hover {
    background: linear-gradient(135deg, var(--primary-teal), var(--accent-blue));
    color: white;
}

.section-header h3 {
    font-size: 1.3rem;
    font-weight: 600;
}

.section-toggle {
    font-size: 1.5rem;
    transition: transform 0.3s ease;
}

.section-header.active .section-toggle {
    transform: rotate(180deg);
}

.section-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.section-content.active {
    max-height: 2000px;
}

.section-inner {
    padding: 2rem;
}

/* Feature Grid */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin: 2rem 0;
}

.feature-card {
    background: white;
    border-radius: 15px;
    padding: 2rem;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
    transition: all 0.3s ease;
    border: 1px solid var(--border-color);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,161,181,0.15);
}

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

.feature-card h4 {
    color: var(--secondary-navy);
    margin-bottom: 1rem;
    font-size: 1.2rem;
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* Metrics Display */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.metric-card {
    background: linear-gradient(135deg, var(--primary-teal), var(--accent-blue));
    color: white;
    padding: 1.5rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: 0 5px 20px rgba(0,161,181,0.2);
}

.metric-number {
    font-size: 2rem;
    font-weight: bold;
    display: block;
    margin-bottom: 0.5rem;
}

.metric-description {
    font-size: 0.9rem;
    opacity: 0.9;
}

/* ROI Calculator */
.roi-calculator {
    background: var(--light-teal);
    padding: 2rem;
    border-radius: 15px;
    margin: 2rem 0;
}

.calculator-inputs {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.input-group {
    display: flex;
    flex-direction: column;
}

.input-group label {
    margin-bottom: 0.5rem;
    font-weight: 600;
    color: var(--secondary-navy);
}

.input-group input,
.input-group select {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
}

.roi-results {
    background: white;
    padding: 2rem;
    border-radius: 10px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

/* Footer */
.footer {
    background: var(--secondary-navy);
    color: white;
    padding: 3rem 0 1rem;
    margin-top: 4rem;
}

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

.footer-section h4 {
    margin-bottom: 1rem;
    color: var(--primary-teal);
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: #BDC3C7;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-section ul li a:hover {
    color: var(--primary-teal);
}

.footer-bottom {
    border-top: 1px solid #34495E;
    padding-top: 1rem;
    text-align: center;
    color: #BDC3C7;
}

.compliance-badges {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin: 1rem 0;
    flex-wrap: wrap;
}

.badge {
    padding: 0.5rem 1rem;
    background: var(--primary-teal);
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero-content h1 {
        font-size: 2rem;
    }
    
    .metrics-row {
        gap: 1.5rem;
    }
    
    .tab-navigation {
        flex-direction: column;
    }
    
    .feature-grid {
        grid-template-columns: 1fr;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .calculator-inputs {
        grid-template-columns: 1fr;
    }
}

/* Animation Classes */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.bounce-in {
    animation: bounceIn 0.6s ease-out;
}

@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); opacity: 1; }
}

/* Video and Image Responsive */
.media-container {
    position: relative;
    width: 100%;
    margin: 1rem 0;
}

.demo-video,
.demo-image {
    width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

/* Button Styles */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    border: none;
    cursor: pointer;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-teal), var(--accent-blue));
    color: white;
}

.btn-secondary {
    background: transparent;
    color: var(--primary-teal);
    border: 2px solid var(--primary-teal);
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

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

/* Table Styles */
.data-table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-radius: 10px;
    overflow: hidden;
}

.data-table th,
.data-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    background: var(--primary-teal);
    color: white;
    font-weight: 600;
}

.data-table tr:hover {
    background: var(--light-teal);
}