:root {
    color-scheme: dark light;
    --bg: #f4f7fb;
    --surface: #ffffff;
    --surface-strong: #eef4ff;
    --primary: #1d4ed8;
    --primary-soft: #dbeafe;
    --accent: #f97316;
    --text: #0f172a;
    --muted: #475569;
    --border: rgba(15, 23, 42, 0.08);
    --radius: 24px;
    --shadow: 0 32px 80px rgba(15, 23, 42, 0.08);
}
* {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    margin: 0;
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Arial, sans-serif;
    background: linear-gradient(180deg, #eef2ff 0%, #f8fafc 40%, #f6f8fb 100%);
    color: var(--text);
    direction: rtl;
}
img {
    max-width: 100%;
    height: auto;
}
.container {
    width: min(1180px, calc(100% - 32px));
    margin: 0 auto;
}
.site-header {
    background: rgba(29, 78, 216, 0.95);
    color: #fff;
    padding: 24px 0;
    position: sticky;
    top: 0;
    z-index: 20;
    box-shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
}
.site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}
.logo {
    margin: 0;
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 0.08em;
}
.main-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    align-items: center;
    justify-content: flex-end;
}
.main-nav a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}
.main-nav a:hover {
    color: #dbeafe;
}
.hero {
    display: grid;
    grid-template-columns: 1fr;
    gap: 32px;
    align-items: center;
    background: radial-gradient(circle at top right, rgba(59, 130, 246, 0.14), transparent 38%), var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 52px 40px;
    margin: 32px auto 12px;
}
.hero h2 {
    margin: 0 0 18px;
    font-size: clamp(2rem, 4vw, 3.4rem);
    line-height: 1.05;
}
.hero p {
    margin: 0 0 28px;
    max-width: 720px;
    color: var(--muted);
    font-size: 1.05rem;
}
.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}
.btn,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 14px 22px;
    border-radius: 12px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease, opacity 0.2s ease;
}
.btn {
    color: #fff;
    background: var(--primary);
    box-shadow: 0 18px 40px rgba(29, 78, 216, 0.18);
}
.btn-secondary {
    color: var(--primary);
    background: var(--primary-soft);
}
.btn:hover,
.btn-secondary:hover {
    transform: translateY(-1px);
    opacity: 0.96;
}
.section-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 40px 0 24px;
}
.section-head h2 {
    margin: 0;
    font-size: 2rem;
}
.section-head p {
    margin: 0;
    color: var(--muted);
}
.feature-grid,
.services-grid,
.stats-grid,
.contact-grid {
    display: grid;
    gap: 22px;
}
.feature-grid {
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}
.feature-card,
.service-card,
.meta-card,
.contact-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 26px;
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.08);
}
.feature-card h3,
.service-card h3,
.contact-card h3 {
    margin: 0 0 12px;
    font-size: 1.15rem;
}
.feature-card p,
.service-card p,
.contact-card p {
    margin: 0;
    color: var(--muted);
    line-height: 1.8;
}
.services-grid {
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}
.stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}
.meta-card {
    text-align: center;
}
.meta-card strong {
    display: block;
    font-size: 2.1rem;
    margin-bottom: 8px;
    color: var(--primary);
}
.meta-card span {
    color: var(--muted);
}
.site-footer {
    margin-top: 48px;
    padding: 40px 0;
    background: transparent;
    text-align: center;
    color: var(--muted);
}
.footer-cta {
    background: #ffffff;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 22px 26px;
    margin-bottom: 18px;
    box-shadow: 0 24px 45px rgba(15, 23, 42, 0.06);
}
.footer-cta a {
    color: var(--primary);
    text-decoration: none;
    font-weight: 700;
}
.site-footer p {
    margin: 0;
}
section {
    margin-bottom: 30px;
}
form {
    display: grid;
    gap: 18px;
}
form label {
    display: grid;
    gap: 10px;
    font-weight: 600;
    color: var(--text);
}
input[type=text],
input[type=email],
input[type=password],
textarea {
    width: 100%;
    min-height: 46px;
    padding: 14px 16px;
    border: 1px solid var(--border);
    border-radius: 16px;
    outline: none;
    font-size: 1rem;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
input:focus,
textarea:focus {
    border-color: rgba(29, 78, 216, 0.55);
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}
textarea {
    min-height: 170px;
    resize: vertical;
}
button {
    width: max-content;
    background: var(--primary);
    color: #fff;
    padding: 14px 22px;
    border: none;
    border-radius: 16px;
    cursor: pointer;
    font-weight: 700;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}
button:hover {
    transform: translateY(-1px);
}
.auth {
    max-width: 520px;
    margin: 40px auto;
    background: var(--surface);
    padding: 32px;
    border-radius: 28px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
}
.notice,
.error {
    padding: 14px 18px;
    border-radius: 16px;
    line-height: 1.6;
}
.notice {
    background: #ecfdf5;
    border: 1px solid #bbf7d0;
    color: #0f5132;
}
.error {
    background: #fef2f2;
    border: 1px solid #f5c2c7;
    color: #842029;
}
.admin-grid {
    display: grid;
    gap: 24px;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    margin: 24px 0 32px;
}
.admin-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 26px;
    box-shadow: 0 24px 48px rgba(15, 23, 42, 0.08);
}
.admin-card h3 {
    margin: 0 0 12px;
    font-size: 1.1rem;
}
.admin-card strong {
    display: block;
    font-size: 2rem;
    margin-bottom: 10px;
    color: var(--primary);
}
.admin-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 24px;
    overflow: hidden;
}
.admin-table th,
.admin-table td {
    padding: 18px 16px;
    text-align: right;
    border-bottom: 1px solid var(--border);
}
.admin-table th {
    background: var(--surface-strong);
    font-weight: 700;
}
.admin-table tbody tr:hover {
    background: rgba(59, 130, 246, 0.06);
}
.table-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: flex-end;
    gap: 10px;
}
.btn-danger {
    background: #dc2626;
    box-shadow: none;
}
.admin-stats {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    gap: 16px;
}
.admin-stats li {
    background: var(--surface);
    padding: 18px 20px;
    border-radius: 18px;
    border: 1px solid var(--border);
}
@media (min-width: 900px) {
    .hero {
        grid-template-columns: 1.1fr 0.9fr;
    }
}
@media (max-width: 720px) {
    .site-header .container {
        flex-direction: column;
        align-items: stretch;
        text-align: center;
    }
    .main-nav {
        justify-content: center;
    }
}