/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #f8f9fa;
}

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

/* Header */
header {
    background: linear-gradient(135deg, hsl(17, 88%, 54%) 0%, hsl(17, 88%, 44%) 100%);
    color: white;
    padding: 0.75rem 0;
    text-align: center;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

header h1 {
    font-size: 2rem;
    margin-bottom: 0.25rem;
    font-weight: 700;
}

.tagline {
    font-size: 1rem;
    opacity: 0.95;
}

nav {
    margin-top: 0.75rem;
}

nav a {
    color: white;
    text-decoration: none;
    opacity: 0.9;
    transition: opacity 0.3s;
}

nav a:hover {
    opacity: 1;
    text-decoration: underline;
}

/* Main Content */
main {
    padding: 3rem 0;
}

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

.intro {
    font-size: 1.2rem;
    color: #555;
    max-width: 800px;
    margin: 0 auto 2rem;
}

/* Business Units & Cards */
.business-units {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.card {
    background: white;
    border-radius: 12px;
    padding: 2rem;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
    transition: transform 0.3s, box-shadow 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0,0,0,0.15);
}

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

.card h2 {
    color: hsl(17, 88%, 54%);
    margin-bottom: 1rem;
    font-size: 1.5rem;
}

.card h3 {
    color: hsl(17, 88%, 54%);
    margin: 1.5rem 0 0.5rem;
    font-size: 1.2rem;
}

.card p {
    color: #666;
    margin-bottom: 1.5rem;
}

.card ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.card li {
    color: #666;
    margin-bottom: 0.5rem;
}

/* Buttons */
.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: white;
    color: hsl(17, 88%, 54%);
    border: 2px solid hsl(17, 88%, 54%);
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s;
    cursor: pointer;
}

.button:hover {
    background: hsl(17, 88%, 54%);
    color: white;
}

.button-primary {
    background: linear-gradient(135deg, hsl(17, 88%, 54%) 0%, hsl(17, 88%, 44%) 100%);
    color: white;
    border: none;
    padding: 1rem 2rem;
    font-size: 1.1rem;
}

.button-primary:hover {
    opacity: 0.9;
    transform: translateY(-2px);
}

/* CTA Section */
.cta {
    text-align: center;
    padding: 4rem 2rem;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.cta h2 {
    font-size: 2rem;
    margin-bottom: 2rem;
    color: #333;
}

/* Tabs */
.tabs {
    margin: 2rem 0;
}

.tab-buttons {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 2rem;
    overflow-x: auto;
    background: white;
    padding: 1rem;
    border-radius: 12px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.tab-button {
    padding: 0.75rem 1.5rem;
    background: white;
    color: hsl(17, 88%, 54%);
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.3s;
    white-space: nowrap;
}

.tab-button:hover {
    border-color: hsl(17, 88%, 54%);
}

.tab-button.active {
    background: hsl(17, 88%, 54%);
    color: white;
    border-color: hsl(17, 88%, 54%);
}

.tab-content {
    display: none;
}

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

.tab-content .card {
    margin-bottom: 2rem;
}

/* Camera Brand Sub-tabs */
.camera-tab-content {
    display: none;
}

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

.camera-tab-button {
    color: #666;
}

.camera-tab-button.active {
    color: #007AFF;
    border-bottom-color: #007AFF;
}

.camera-tab-button:hover {
    color: #007AFF;
}

/* Footer */
footer {
    background: #2c3e50;
    color: white;
    text-align: center;
    padding: 2rem 0;
    margin-top: 4rem;
}

footer p {
    margin: 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }

    .tagline {
        font-size: 1rem;
    }

    .business-units {
        grid-template-columns: 1fr;
    }

    .tab-buttons {
        flex-wrap: wrap;
    }

    .tab-button {
        flex: 1 1 auto;
        min-width: 120px;
    }
}