* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: Arial, sans-serif;
    background: #f5f7fb;
    color: #1d2636;
}

.container {
    width: min(1120px, 92%);
    margin: auto;
}

.site-header {
    background: #ffffff;
    box-shadow: 0 8px 25px rgba(0,0,0,.06);
}

.nav {
    height: 76px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    font-size: 26px;
    font-weight: bold;
    text-decoration: none;
    color: #1d2636;
}

.logo span {
    color: #2f6fed;
}

nav a {
    margin-left: 22px;
    color: #1d2636;
    text-decoration: none;
    font-weight: 600;
}

.hero {
    padding: 90px 0;
    background: linear-gradient(135deg, #2f6fed, #42c3ff);
    color: white;
}

.hero h1 {
    font-size: 52px;
    margin: 0 0 15px;
}

.hero p {
    font-size: 20px;
    max-width: 650px;
}

.btn {
    display: inline-block;
    background: #ffffff;
    color: #2f6fed;
    padding: 14px 24px;
    border-radius: 10px;
    text-decoration: none;
    font-weight: bold;
}

.section {
    padding: 55px 0;
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.card {
    background: #ffffff;
    padding: 26px;
    border-radius: 18px;
    box-shadow: 0 12px 35px rgba(0,0,0,.07);
}

.card img {
    max-width: 100%;
    border-radius: 14px;
}

.form input,
.form textarea,
.admin-form input,
.admin-form textarea,
.admin-form select {
    width: 100%;
    padding: 13px;
    margin-bottom: 12px;
    border: 1px solid #ddd;
    border-radius: 9px;
}

.form button,
.admin-form button,
.admin-btn {
    background: #2f6fed;
    color: white;
    border: 0;
    padding: 12px 18px;
    border-radius: 9px;
    cursor: pointer;
    text-decoration: none;
}

.footer {
    background: #101827;
    color: white;
    padding: 25px 0;
    margin-top: 40px;
}

.admin-layout {
    width: min(1050px, 94%);
    margin: 35px auto;
}

.admin-menu {
    background: #101827;
    padding: 16px;
    border-radius: 14px;
    margin-bottom: 25px;
}

.admin-menu a {
    color: white;
    margin-right: 18px;
    text-decoration: none;
}

.table {
    width: 100%;
    background: white;
    border-collapse: collapse;
}

.table th,
.table td {
    padding: 13px;
    border-bottom: 1px solid #eee;
    text-align: left;
}