:root {
    --primary: #1678ff;
    --black: #111111;
    --deep: #1C1C1C;
    --mid: #2B2B2B;
    --light: #F5F5F5;
    --white: #ffffff;
    --shadow: 0 18px 45px rgba(17, 17, 17, 0.10);
    --radius: 18px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    font-family: Arial, Helvetica, sans-serif;
    color: var(--black);
    background: #ffffff;
    line-height: 1.65;
}

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

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

header, section, footer { width: 100%; }

.container {
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.96);
    border-bottom: 1px solid rgba(17, 17, 17, 0.08);
    backdrop-filter: blur(10px);
}

.header-inner {
    min-height: 72px;
    display: grid;
    grid-template-columns: 48px 1fr 48px;
    align-items: center;
    gap: 12px;
}

.logo {
    justify-self: center;
    display: inline-flex;
    align-items: center;
}

.logo img {
    width: 142px;
    height: auto;
    max-height: 48px;
    object-fit: contain;
}

.main-nav {
    display: none;
    align-items: center;
    justify-content: center;
    gap: 28px;
    font-weight: 700;
    color: var(--deep);
}

.main-nav a {
    padding: 8px 2px;
    border-bottom: 2px solid transparent;
}

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

.header-actions {
    display: none;
    align-items: center;
    justify-content: flex-end;
    gap: 10px;
}

.mobile-menu-toggle {
    justify-self: start;
    width: 42px;
    height: 42px;
    border: 0;
    border-radius: 14px;
    background: var(--primary);
    color: #fff;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    box-shadow: 0 8px 20px rgba(22, 120, 255, 0.25);
}

.mobile-nav {
    display: none;
    width: min(1120px, calc(100% - 32px));
    margin: 0 auto 10px;
    padding: 14px;
    background: #ffffff;
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: 18px;
    box-shadow: var(--shadow);
    gap: 8px;
}

.mobile-nav.is-open {
    display: grid;
}

.mobile-nav a {
    padding: 12px 14px;
    border-radius: 14px;
    background: var(--light);
    font-weight: 700;
}

.mobile-actions {
    width: min(420px, calc(100% - 32px));
    margin: 0 auto 14px;
    display: flex;
    justify-content: center;
    gap: 10px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: 12px 22px;
    border-radius: 999px;
    background: linear-gradient(135deg, var(--primary), #0e57ba);
    color: #ffffff;
    font-weight: 800;
    border: 0;
    box-shadow: 0 12px 28px rgba(22, 120, 255, 0.24);
    transition: transform .18s ease, box-shadow .18s ease;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 16px 34px rgba(22, 120, 255, 0.30);
}

.btn-small {
    min-height: 40px;
    padding: 9px 18px;
    font-size: 14px;
}

.btn-soft {
    background: linear-gradient(135deg, #2B2B2B, #111111);
}

.hero, .banner {
    background:
        radial-gradient(circle at top right, rgba(22, 120, 255, 0.28), transparent 28%),
        linear-gradient(135deg, #0b1328, #152345 55%, #0b1328);
    color: #ffffff;
}

.hero {
    padding: 56px 0 48px;
}

.hero-grid {
    display: grid;
    gap: 28px;
    align-items: center;
}

.hero h1 {
    font-size: clamp(34px, 9vw, 64px);
    line-height: 1.08;
    margin: 0 0 18px;
}

.hero p {
    color: rgba(255, 255, 255, 0.86);
    font-size: 18px;
    margin: 0 0 22px;
}

.hero-image {
    background: rgba(255, 255, 255, 0.10);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 28px;
    padding: 18px;
    box-shadow: 0 26px 60px rgba(0, 0, 0, 0.24);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
}

.tag {
    display: inline-flex;
    padding: 8px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.13);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #ffffff;
    font-size: 14px;
}

section {
    padding: 54px 0;
}

.section-title {
    max-width: 820px;
    margin-bottom: 24px;
}

.section-title h2 {
    font-size: clamp(26px, 5vw, 42px);
    line-height: 1.16;
    margin: 0 0 12px;
}

.section-title p {
    margin: 0;
    color: #4b5563;
}

.grid {
    display: grid;
    gap: 18px;
}

.card {
    background: #ffffff;
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: var(--radius);
    padding: 22px;
    box-shadow: var(--shadow);
}

.card h3 {
    margin-top: 0;
    color: var(--deep);
}

.card p:last-child { margin-bottom: 0; }

.notice {
    border-left: 5px solid var(--primary);
    background: #f7fbff;
    border-radius: 16px;
    padding: 18px;
    color: var(--deep);
}

.faq {
    display: grid;
    gap: 14px;
}

.faq-item {
    background: #ffffff;
    border: 1px solid rgba(17, 17, 17, 0.08);
    border-radius: 18px;
    padding: 20px;
    box-shadow: var(--shadow);
}

.faq-item h3 {
    margin: 0 0 8px;
}

.banner {
    padding: 42px 0;
}

.breadcrumbs {
    margin-bottom: 18px;
    font-size: 14px;
    color: rgba(255,255,255,.78);
}

.page-hero {
    padding: 48px 0;
    background: linear-gradient(135deg, #0b1328, #152345);
    color: #ffffff;
}

.page-hero h1 {
    margin: 0;
    font-size: clamp(30px, 7vw, 52px);
}

.page-hero p {
    max-width: 780px;
    color: rgba(255,255,255,.82);
}

.content {
    max-width: 900px;
}

.content p {
    color: #374151;
}

.inline-links {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.inline-links a {
    color: var(--primary);
    font-weight: 700;
}

.footer {
    padding: 44px 0;
    background: #111111;
    color: #ffffff;
}

.footer-grid {
    display: grid;
    gap: 24px;
}

.footer a {
    display: block;
    color: rgba(255, 255, 255, 0.82);
    margin: 8px 0;
}

.footer p {
    color: rgba(255, 255, 255, 0.72);
}

.footer-logo {
    font-weight: 900;
    font-size: 24px;
    color: #ffffff !important;
}

@media (min-width: 768px) {
    .header-inner {
        grid-template-columns: auto 1fr auto;
        min-height: 82px;
    }

    .mobile-menu-toggle, .mobile-actions, .mobile-nav {
        display: none;
    }

    .main-nav, .header-actions {
        display: flex;
    }

    .logo {
        justify-self: start;
    }

    .logo img {
        width: 164px;
    }

    .hero {
        padding: 76px 0 70px;
    }

    .hero-grid {
        grid-template-columns: 1.05fr .95fr;
    }

    .grid.cols-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid.cols-3 {
        grid-template-columns: repeat(3, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1.4fr .8fr 1fr;
    }
}

@media (min-width: 1024px) {
    .container {
        width: min(1180px, calc(100% - 56px));
    }

    .header-inner {
        gap: 34px;
    }

    .main-nav {
        gap: 34px;
    }

    .hero h1 {
        letter-spacing: -1px;
    }

    .card {
        padding: 26px;
    }
}