:root {
    --bg: #07090e;
    --panel: rgba(12, 18, 30, 0.82);
    --panel-strong: rgba(17, 25, 40, 0.95);
    --border: rgba(0, 240, 255, 0.2);
    --cyan: #00e7ff;
    --blue: #1d7cff;
    --pink: #ff2a6d;
    --green: #19f5b0;
    --text: #f4f7fb;
    --muted: #a8b2cf;
    --shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'JetBrains Mono', monospace;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow: hidden;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

#bgCanvas {
    position: fixed;
    inset: 0;
    z-index: 1;
    opacity: 0.55;
}

.bg-grid {
    position: fixed;
    inset: 0;
    z-index: 2;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(0, 231, 255, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(0, 231, 255, 0.05) 1px, transparent 1px);
    background-size: 46px 46px;
    mask-image: radial-gradient(circle at center, rgba(0,0,0,1) 35%, rgba(0,0,0,0.2) 100%);
}

.hero-card {
    position: relative;
    z-index: 5;
    width: min(980px, 96vw);
    padding: 34px 34px 28px;
    border: 1px solid var(--border);
    border-radius: 28px;
    background: var(--panel);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
}

.top-badge {
    width: fit-content;
    margin: 0 auto 24px;
    padding: 8px 18px;
    border-radius: 999px;
    border: 1px solid rgba(25, 245, 176, 0.35);
    background: rgba(25, 245, 176, 0.08);
    color: var(--green);
    font-size: 0.92rem;
    text-align: center;
}

.main-title {
    font-family: 'Unbounded', sans-serif;
    font-size: clamp(2.2rem, 5vw, 4.7rem);
    line-height: 1.03;
    text-align: center;
    margin-bottom: 18px;
    text-transform: uppercase;
    color: #ffffff;
    text-shadow:
        0 0 22px rgba(0, 231, 255, 0.28),
        2px 0 0 rgba(255, 42, 109, 0.35),
        -2px 0 0 rgba(0, 231, 255, 0.35);
}

.lead-text {
    max-width: 760px;
    margin: 0 auto 14px;
    text-align: center;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.7;
}

.helper-text {
    text-align: center;
    color: var(--cyan);
    font-size: 0.88rem;
    margin-bottom: 24px;
}

.button-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 14px;
    margin-bottom: 26px;
}

.menu-btn {
    border: 0;
    border-radius: 14px;
    padding: 14px 16px;
    cursor: pointer;
    color: #081018;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.92rem;
    font-weight: 800;
    background: linear-gradient(135deg, #00e7ff 0%, #1d7cff 100%);
    box-shadow: 0 0 18px rgba(0, 231, 255, 0.25);
    transition: transform 0.18s ease, box-shadow 0.18s ease, filter 0.18s ease;
}

.menu-btn:hover,
.menu-btn:focus-visible {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 0 30px rgba(0, 231, 255, 0.42);
    filter: brightness(1.03);
    outline: none;
}

.preview-card {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 22px;
    align-items: stretch;
    min-height: 320px;
    background: var(--panel-strong);
    border: 1px solid rgba(255,255,255,0.06);
    border-radius: 22px;
    overflow: hidden;
}

.preview-text {
    padding: 26px 24px 24px;
}

.preview-tag {
    display: inline-block;
    margin-bottom: 14px;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 42, 109, 0.14);
    border: 1px solid rgba(255, 42, 109, 0.28);
    color: #ffd7e5;
    font-size: 0.8rem;
}

.preview-title {
    font-family: 'Unbounded', sans-serif;
    font-size: clamp(1.35rem, 2.5vw, 2rem);
    line-height: 1.2;
    margin-bottom: 14px;
    color: #ffffff;
}

.preview-desc {
    color: var(--muted);
    line-height: 1.7;
    margin-bottom: 16px;
    font-size: 0.95rem;
}

.preview-list {
    list-style: none;
    display: grid;
    gap: 10px;
}

.preview-list li {
    position: relative;
    padding-left: 18px;
    color: #dce3f5;
    line-height: 1.55;
    font-size: 0.92rem;
}

.preview-list li::before {
    content: "•";
    position: absolute;
    left: 0;
    top: 0;
    color: var(--cyan);
}

.preview-image-wrap {
    min-height: 320px;
    background: #0f1626;
}

.preview-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

@media (max-width: 900px) {
    body {
        overflow-y: auto;
    }

    .hero-card {
        padding: 24px 18px 18px;
    }

    .button-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .preview-card {
        grid-template-columns: 1fr;
    }

    .preview-image-wrap {
        min-height: 240px;
    }
}

@media (max-width: 560px) {
    .button-grid {
        grid-template-columns: 1fr;
    }

    .top-badge {
        font-size: 0.8rem;
        line-height: 1.4;
    }
}

/* Исправление прокрутки страницы */
html {
    min-height: 100%;
    overflow-y: auto;
}

body {
    min-height: 100vh;
    height: auto;
    overflow-x: hidden;
    overflow-y: auto;
}