:root {
    color-scheme: dark;
    --bg: radial-gradient(circle at 20% 20%, rgba(99, 102, 241, 0.45), transparent 50%),
        radial-gradient(circle at 80% 15%, rgba(244, 114, 182, 0.35), transparent 52%),
        linear-gradient(145deg, #050816 0%, #0b1327 55%, #020617 100%);
    --text-primary: #f8fafc;
    --text-secondary: rgba(226, 232, 240, 0.7);
    --card-bg: rgba(15, 23, 42, 0.65);
    --card-border: rgba(148, 163, 184, 0.16);
    --card-hover: rgba(99, 102, 241, 0.16);
    --modal-backdrop: rgba(8, 12, 24, 0.7);
    --modal-panel: rgba(15, 23, 42, 0.92);
    font-family: 'Manrope', 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: clamp(2.5rem, 6vw, 4rem);
    background: var(--bg);
    color: var(--text-primary);
}

.wrapper {
    display: grid;
    gap: clamp(2.5rem, 6vw, 4rem);
    width: min(560px, 100%);
    text-align: center;
}

.hero {
    display: grid;
    gap: 1rem;
}

.badge {
    display: inline-flex;
    align-self: center;
    padding: 0.4rem 1.2rem;
    border-radius: 999px;
    border: 1px solid rgba(148, 163, 184, 0.25);
    background: rgba(15, 23, 42, 0.55);
    letter-spacing: 0.18em;
    text-transform: uppercase;
    font-size: 0.75rem;
    color: var(--text-secondary);
}

.hero h1 {
    margin: 0;
    font-size: clamp(2rem, 5vw, 2.6rem);
    letter-spacing: -0.01em;
}

.hero p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 1rem;
}

.links {
    display: grid;
    gap: 1rem;
}

.link-card {
    display: grid;
    gap: 0.25rem;
    padding: 1.35rem;
    border-radius: 18px;
    border: 1px solid var(--card-border);
    background: var(--card-bg);
    color: inherit;
    text-decoration: none;
    text-align: center;
    transition: transform 160ms ease, border-color 160ms ease, background 160ms ease;
}

.link-button {
    cursor: pointer;
    text-align: left;
    font: inherit;
}

.link-card:hover,
.link-card:focus-visible {
    transform: translateY(-4px);
    border-color: rgba(99, 102, 241, 0.45);
    background: var(--card-hover);
}

.link-card:focus-visible {
    outline: 2px solid rgba(99, 102, 241, 0.6);
    outline-offset: 3px;
}

.label {
    font-size: 1.05rem;
    font-weight: 600;
}

.hint {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.modal {
    position: fixed;
    inset: 0;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    z-index: 1000;
}

.modal.is-open {
    display: flex;
}

.modal__backdrop {
    position: absolute;
    inset: 0;
    background: var(--modal-backdrop);
}

.modal__panel {
    position: relative;
    z-index: 1;
    width: min(520px, 92vw);
    background: var(--modal-panel);
    border-radius: 22px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    box-shadow: 0 20px 60px rgba(2, 6, 23, 0.6);
    backdrop-filter: blur(8px);
    max-height: min(82vh, 720px);
    display: flex;
    flex-direction: column;
}

.modal__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 1.75rem 0.75rem;
    border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.modal__header h2 {
    margin: 0;
    font-size: 1.2rem;
}

.modal__close {
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.6rem;
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    line-height: 1;
}

.modal__close:hover,
.modal__close:focus-visible {
    color: var(--text-primary);
}

.modal__body {
    padding: 1.25rem 1.75rem 1.75rem;
    overflow-y: auto;
    overscroll-behavior: contain;
}

.modal__body::-webkit-scrollbar {
    width: 8px;
}

.modal__body::-webkit-scrollbar-track {
    background: rgba(15, 23, 42, 0.35);
    border-radius: 999px;
}

.modal__body::-webkit-scrollbar-thumb {
    background: rgba(148, 163, 184, 0.45);
    border-radius: 999px;
}

.modal__body::-webkit-scrollbar-thumb:hover {
    background: rgba(148, 163, 184, 0.7);
}

.download-groups {
    display: grid;
    gap: 1.25rem;
}

.download-group {
    display: grid;
    gap: 0.75rem;
}

.download-group__title {
    margin: 0;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    color: var(--text-secondary);
}

.download-list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 0.75rem;
}

.download-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.85rem 1rem;
    border-radius: 14px;
    border: 1px solid rgba(148, 163, 184, 0.2);
    background: rgba(15, 23, 42, 0.7);
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
}

.download-link:hover,
.download-link:focus-visible {
    border-color: rgba(99, 102, 241, 0.45);
    background: rgba(99, 102, 241, 0.18);
}

.modal__empty {
    margin: 0;
    color: var(--text-secondary);
}

@media (min-width: 720px) {
    .links {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }

    .link-card {
        padding: 1.6rem;
    }
}