:root {
    color-scheme: dark;
    --bg: #061018;
    --panel: rgba(255, 255, 255, 0.075);
    --panel-strong: rgba(255, 255, 255, 0.12);
    --text: #f6fbff;
    --muted: rgba(246, 251, 255, 0.72);
    --soft: rgba(246, 251, 255, 0.5);
    --line: rgba(255, 255, 255, 0.12);
    --cyan: #22d8e8;
    --red: #ff4566;
    --shadow: 0 24px 80px rgba(0, 0, 0, 0.42);
}

* {
    box-sizing: border-box;
}

html {
    min-height: 100%;
    background: var(--bg);
}

body {
    min-height: 100%;
    margin: 0;
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    color: var(--text);
    background:
        radial-gradient(circle at 50% 0%, rgba(34, 216, 232, 0.2), transparent 34rem),
        radial-gradient(circle at 80% 12%, rgba(255, 69, 102, 0.16), transparent 28rem),
        linear-gradient(180deg, #08131f 0%, #05090f 100%);
    line-height: 1.58;
}

a {
    color: inherit;
}

.page {
    width: min(1040px, calc(100% - 32px));
    margin: 0 auto;
}

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 22px 0;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    font-weight: 800;
    letter-spacing: 0;
}

.brand img {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    box-shadow: 0 10px 30px rgba(34, 216, 232, 0.22);
}

.nav-links {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 8px;
    flex-wrap: wrap;
}

.nav-links a,
.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 42px;
    padding: 9px 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--text);
    text-decoration: none;
    font-size: 0.94rem;
    font-weight: 700;
}

.nav-links a:hover,
.button:hover {
    border-color: rgba(34, 216, 232, 0.45);
    background: rgba(34, 216, 232, 0.12);
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 220px;
    gap: 40px;
    align-items: center;
    min-height: 54vh;
    padding: 42px 0 34px;
}

.hero h1,
.content h1 {
    margin: 0;
    max-width: 760px;
    font-size: clamp(2.4rem, 7vw, 5.8rem);
    line-height: 0.94;
    letter-spacing: 0;
}

.hero p {
    max-width: 690px;
    margin: 22px 0 0;
    color: var(--muted);
    font-size: clamp(1.02rem, 2vw, 1.22rem);
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
}

.hero-logo {
    width: 100%;
    aspect-ratio: 1;
    border-radius: 34px;
    box-shadow: var(--shadow);
}

.grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
    padding: 18px 0 60px;
}

.card,
.notice,
.content {
    border: 1px solid var(--line);
    background: var(--panel);
    box-shadow: var(--shadow);
    backdrop-filter: blur(18px);
}

.card {
    min-height: 178px;
    padding: 18px;
    border-radius: 8px;
}

.card h2,
.content h2 {
    margin: 0 0 10px;
    font-size: 1.12rem;
    letter-spacing: 0;
}

.card p,
.content p,
.content li {
    color: var(--muted);
}

.content {
    margin: 22px 0 60px;
    padding: clamp(22px, 4vw, 42px);
    border-radius: 8px;
}

.content h1 {
    font-size: clamp(2rem, 5vw, 4.2rem);
    margin-bottom: 12px;
}

.content h2 {
    margin-top: 32px;
}

.content ul {
    padding-left: 20px;
}

.meta,
.placeholder,
.footer {
    color: var(--soft);
}

.notice {
    margin: 18px 0;
    padding: 16px;
    border-radius: 8px;
    border-color: rgba(255, 69, 102, 0.32);
    background: rgba(255, 69, 102, 0.09);
}

.contact-list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
    margin: 18px 0 0;
}

.contact-item {
    padding: 14px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.045);
}

.contact-item strong {
    display: block;
    margin-bottom: 4px;
}

.support-form {
    display: grid;
    gap: 14px;
    margin-top: 16px;
}

.support-form label {
    display: grid;
    gap: 7px;
    color: var(--muted);
    font-weight: 700;
}

.support-form input,
.support-form select,
.support-form textarea {
    width: 100%;
    min-height: 46px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: rgba(255, 255, 255, 0.08);
    color: var(--text);
    font: inherit;
    padding: 11px 12px;
}

.support-form textarea {
    min-height: 150px;
    resize: vertical;
}

.support-form input:focus,
.support-form select:focus,
.support-form textarea:focus {
    border-color: rgba(34, 216, 232, 0.65);
    box-shadow: 0 0 0 3px rgba(34, 216, 232, 0.16);
    outline: none;
}

.support-form button {
    width: fit-content;
    cursor: pointer;
}

.hidden-field {
    display: none;
}

.footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 28px 0 42px;
    border-top: 1px solid var(--line);
    font-size: 0.93rem;
}

.footer a {
    color: var(--muted);
}

@media (max-width: 760px) {
    .nav,
    .footer {
        align-items: flex-start;
        flex-direction: column;
    }

    .hero {
        grid-template-columns: 1fr;
        gap: 26px;
        min-height: 0;
        padding-top: 22px;
    }

    .hero-logo {
        width: min(180px, 54vw);
        order: -1;
    }

    .grid,
    .contact-list {
        grid-template-columns: 1fr;
    }
}