:root {
    --color-primary: #208080;
    --color-primary-hover: #186565;
    --color-accent: #D4957E;
    --color-text: #333;
    --color-text-light: #666;
    --color-bg: #fff;
    --color-bg-light: #f8f8f8;
    --color-border: #e0e0e0;
    --color-success: #22c55e;
    --color-error: #ef4444;
}

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

html, body {
    height: 100%;
}

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

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

/* Header */
header {
    background: white;
    border-bottom: 1px solid var(--color-border);
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
}

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

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
}

nav {
    display: flex;
    gap: 30px;
    align-items: center;
}

nav a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s;
}

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

nav .btn {
    margin-left: 10px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
    font-size: 14px;
}

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

.btn-primary:hover {
    background: var(--color-primary-hover);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    opacity: 0.9;
}

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

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

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-hover) 100%);
    color: white;
    padding: 80px 20px;
    text-align: center;
}

.hero h1 {
    font-size: 48px;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.9;
}

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

/* Sections */
section {
    padding: 60px 20px;
}

section h2 {
    font-size: 36px;
    margin-bottom: 40px;
    text-align: center;
}

section h3 {
    font-size: 24px;
    margin-bottom: 15px;
    color: var(--color-primary);
}

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

.grid-item {
    background: var(--color-bg-light);
    padding: 30px;
    border-radius: 8px;
    border: 1px solid var(--color-border);
    transition: all 0.2s;
}

.grid-item:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
}

/* Products */
.product-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 8px;
    overflow: hidden;
    transition: all 0.2s;
}

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

.product-image {
    width: 100%;
    height: 250px;
    background: var(--color-bg-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 48px;
}

.product-info {
    padding: 20px;
}

.product-name {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 10px;
}

.product-price {
    font-size: 20px;
    color: var(--color-primary);
    font-weight: 700;
    margin-bottom: 15px;
}

.product-desc {
    font-size: 14px;
    color: var(--color-text-light);
    margin-bottom: 15px;
}

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

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    font-size: 14px;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--color-border);
    border-radius: 6px;
    font-family: inherit;
    font-size: 14px;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(32, 128, 128, 0.1);
}

/* Footer */
footer {
    background: #2d2d2d;
    color: #aaa;
    padding: 40px 20px;
    text-align: center;
    border-top: 1px solid var(--color-border);
    margin-top: 60px;
}

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

footer p {
    margin-bottom: 10px;
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        gap: 15px;
    }
    
    .hero h1 {
        font-size: 32px;
    }
    
    .hero-buttons {
        flex-direction: column;
    }
    
    section h2 {
        font-size: 28px;
    }
    
    .grid {
        grid-template-columns: 1fr;
    }
}