/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    line-height: 1.6;
    color: #333;
    background: #fff;
}

a {
    color: inherit;
    text-decoration: none;
}

img {
    max-width: 100%;
    display: block;
}

/* ===== Layout ===== */
.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== Header ===== */
.header {
    background: #fff;
    border-bottom: 1px solid #eee;
    position: sticky;
    top: 0;
    z-index: 100;
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1a1a;
    letter-spacing: -0.5px;
}

.nav {
    display: flex;
    gap: 28px;
}

.nav a {
    font-size: 0.95rem;
    color: #555;
    transition: color 0.2s;
}

.nav a:hover,
.nav a.active {
    color: #111;
    font-weight: 500;
}

/* ===== Hero ===== */
.hero {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    padding: 100px 0;
    text-align: center;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: #1a1a1a;
    margin-bottom: 16px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.15rem;
    color: #555;
    max-width: 600px;
    margin: 0 auto 32px;
}

.btn {
    display: inline-block;
    padding: 12px 28px;
    background: #1a1a1a;
    color: #fff;
    font-size: 0.95rem;
    border-radius: 6px;
    transition: background 0.2s, transform 0.1s;
    cursor: pointer;
    border: none;
}

.btn:hover {
    background: #333;
}

.btn:active {
    transform: translateY(1px);
}

/* ===== Features ===== */
.features {
    padding: 80px 0;
    background: #fff;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
}

.feature-item {
    padding: 24px;
    border: 1px solid #eee;
    border-radius: 10px;
    transition: box-shadow 0.2s, transform 0.2s;
}

.feature-item:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    transform: translateY(-2px);
}

.feature-item h3 {
    font-size: 1.15rem;
    margin-bottom: 10px;
    color: #1a1a1a;
}

.feature-item p {
    color: #666;
    font-size: 0.95rem;
}

/* ===== Why Us ===== */
.why-us {
    padding: 80px 0;
    background: #f8f9fa;
    text-align: center;
}

.why-us h2 {
    font-size: 1.8rem;
    margin-bottom: 40px;
    color: #1a1a1a;
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
}

.why-item {
    padding: 24px;
}

.why-item strong {
    display: block;
    font-size: 1.1rem;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.why-item p {
    color: #666;
    font-size: 0.95rem;
}

/* ===== Page Header ===== */
.page-header {
    background: #f8f9fa;
    padding: 60px 0 40px;
    text-align: center;
}

.page-header h1 {
    font-size: 2rem;
    color: #1a1a1a;
}

.page-header p {
    color: #666;
    margin-top: 8px;
}

/* ===== Content ===== */
.content {
    padding: 60px 0;
}

.about-block {
    margin-bottom: 48px;
}

.about-block h2 {
    font-size: 1.4rem;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.about-block p {
    color: #444;
    margin-bottom: 12px;
    line-height: 1.7;
}

.info-list {
    list-style: none;
}

.info-list li {
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
    color: #444;
}

.info-list li:last-child {
    border-bottom: none;
}

/* ===== Products ===== */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 28px;
    margin-bottom: 60px;
}

.product-card {
    border: 1px solid #eee;
    border-radius: 10px;
    overflow: hidden;
    transition: box-shadow 0.2s;
}

.product-card:hover {
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.product-img {
    height: 180px;
    background: #f0f0f0;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #888;
    font-size: 0.95rem;
}

.product-card h3 {
    padding: 16px 16px 8px;
    font-size: 1.1rem;
    color: #1a1a1a;
}

.product-card p {
    padding: 0 16px 12px;
    color: #666;
    font-size: 0.9rem;
    line-height: 1.6;
}

.tag {
    display: inline-block;
    padding: 4px 10px;
    background: #f0f0f0;
    border-radius: 4px;
    font-size: 0.8rem;
    color: #555;
    margin: 0 0 16px 16px;
}

.service-note {
    background: #f8f9fa;
    padding: 32px;
    border-radius: 10px;
}

.service-note h2 {
    font-size: 1.3rem;
    margin-bottom: 16px;
    color: #1a1a1a;
}

.service-note ul {
    list-style: disc;
    padding-left: 20px;
    color: #444;
}

.service-note li {
    margin-bottom: 8px;
}

/* ===== Contact ===== */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

@media (max-width: 768px) {
    .contact-grid {
        grid-template-columns: 1fr;
    }
}

.contact-info h2,
.contact-form-wrapper h2 {
    font-size: 1.3rem;
    margin-bottom: 20px;
    color: #1a1a1a;
}

.contact-info h3 {
    font-size: 1.05rem;
    margin: 24px 0 8px;
    color: #1a1a1a;
}

.contact-form .form-group {
    margin-bottom: 16px;
}

.contact-form label {
    display: block;
    font-size: 0.9rem;
    margin-bottom: 6px;
    color: #444;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid #ddd;
    border-radius: 6px;
    font-size: 0.95rem;
    font-family: inherit;
    transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #1a1a1a;
}

/* ===== Footer ===== */
.footer {
    background: #1a1a1a;
    color: #aaa;
    padding: 40px 0;
    text-align: center;
    font-size: 0.9rem;
}

.footer p {
    margin-bottom: 6px;
}

/* ===== Mobile Menu Toggle ===== */
@media (max-width: 640px) {
    .nav {
        gap: 16px;
    }

    .hero {
        padding: 60px 0;
    }

    .hero h1 {
        font-size: 1.8rem;
    }

    .hero p {
        font-size: 1rem;
    }
}