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

:root {
    --bg: #000;
    --surface: #0a0a0a;
    --border: #fff;
    --text: #fff;
    --text-dim: #999;
}

.skip-link {
    position: absolute;
    top: -100%;
    left: 0;
    background: var(--text);
    color: var(--bg);
    padding: 0.5rem 1rem;
    font-family: inherit;
    font-size: 0.8rem;
    font-weight: 700;
    text-decoration: none;
    z-index: 1000;
    border: 1px solid var(--border);
}

.skip-link:focus {
    top: 0;
}

.announcement-banner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    padding: 0.6rem 1rem;
    background: var(--bg);
    border-bottom: 2px solid var(--border);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--text-dim);
}

.banner-close {
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.15rem 0.4rem;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.65rem;
    font-weight: 700;
    flex-shrink: 0;
}

.banner-close:hover {
    background: var(--text);
    color: var(--bg);
}

.banner-link {
    background: none;
    border: none;
    color: var(--text);
    font-family: inherit;
    font-size: inherit;
    font-weight: 700;
    text-transform: inherit;
    letter-spacing: inherit;
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
}

.banner-link:hover {
    background: var(--text);
    color: var(--bg);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

body {
    font-family: 'Geist Mono', 'Cascadia Code', 'Fira Code', 'JetBrains Mono', monospace;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.6;
    -webkit-font-smoothing: none;
}

header {
    border-bottom: 2px solid var(--border);
    padding: 1rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg);
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.75rem;
}

h1 {
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.05em;
}

.cursor {
    animation: blink 1s step-end infinite;
}

@keyframes blink {
    50% { opacity: 0; }
}

.header-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.region-selector {
    display: flex;
    border: 1px solid var(--border);
}

.region-btn {
    background: none;
    border: none;
    border-right: 1px solid var(--border);
    color: var(--text-dim);
    padding: 0.3rem 0.6rem;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    transition: none;
}

.region-btn:last-child {
    border-right: none;
}

.region-btn:hover {
    color: var(--text);
    background: var(--text);
    color: var(--bg);
}

.region-btn.active {
    background: var(--text);
    color: var(--bg);
}

.refresh-btn,
.settings-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.35rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.refresh-btn:hover,
.settings-btn:hover {
    background: var(--text);
    color: var(--bg);
}

.refresh-btn.spinning svg {
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.subtitle {
    max-width: 1200px;
    margin: 0.4rem auto 0;
    font-size: 0.7rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.5rem;
}

.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 0;
    gap: 1rem;
    color: var(--text-dim);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.spinner {
    width: 20px;
    height: 20px;
    border: 2px solid var(--text-dim);
    border-top-color: var(--text);
    animation: spin 0.6s linear infinite;
}

.hidden {
    display: none !important;
}

.error-message {
    border: 1px solid var(--text);
    padding: 0.75rem 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.8rem;
}

.error-message::before {
    content: "ERR: ";
    font-weight: 700;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 0;
}

.product-card {
    border: 1px solid var(--border);
    padding: 1rem;
    position: relative;
    margin: -0.5px;
}

.product-card.highlight {
    animation: flashHighlight 1.5s ease-out;
}

@keyframes flashHighlight {
    0%, 20% {
        background: var(--text);
        color: var(--bg);
    }
    100% {
        background: var(--bg);
        color: var(--text);
    }
}

.product-card.highlight-red {
    animation: flashHighlightRed 1.5s ease-out;
}

@keyframes flashHighlightRed {
    0%, 20% {
        background: #333;
    }
    100% {
        background: var(--bg);
    }
}

.card-header {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.product-name {
    font-size: 0.85rem;
    font-weight: 700;
    line-height: 1.4;
    flex: 1;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.stock-badge {
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.15rem 0.4rem;
    border: 1px solid var(--border);
    white-space: nowrap;
    flex-shrink: 0;
}

.stock-badge.in-stock {
    background: var(--text);
    color: var(--bg);
}

.stock-badge.out-of-stock {
    background: none;
    color: var(--text);
}

.stock-badge.unknown {
    background: none;
    color: var(--text-dim);
    border-color: var(--text-dim);
}

.product-site {
    font-size: 0.65rem;
    color: var(--text-dim);
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.product-price {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.4rem;
}

.product-details {
    font-size: 0.7rem;
    color: var(--text-dim);
    margin-bottom: 0.6rem;
    line-height: 1.5;
}

.product-link {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    color: var(--text);
    text-decoration: none;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.product-link:hover {
    text-decoration: underline;
}

.product-link svg {
    width: 12px;
    height: 12px;
}

.new-badge {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    background: var(--text);
    color: var(--bg);
    font-size: 0.6rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    padding: 0.1rem 0.35rem;
}

footer {
    text-align: center;
    padding: 1.5rem;
    color: var(--text-dim);
    font-size: 0.7rem;
    border-top: 2px solid var(--border);
    margin-top: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.settings-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border: 1px solid var(--border);
    padding: 0.6rem 0.8rem;
    margin-bottom: 1.25rem;
}

.settings-bar label {
    font-size: 0.7rem;
    color: var(--text-dim);
    white-space: nowrap;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.settings-bar input {
    flex: 1;
    background: var(--bg);
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.3rem 0.5rem;
    font-family: inherit;
    font-size: 0.75rem;
}

.settings-bar input:focus {
    outline: 1px solid var(--text);
    outline-offset: -1px;
}

.save-btn {
    background: var(--text);
    color: var(--bg);
    border: 1px solid var(--text);
    padding: 0.3rem 0.6rem;
    font-family: inherit;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
}

.save-btn:hover {
    background: var(--bg);
    color: var(--text);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text);
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    padding: 0 0.2rem;
    line-height: 1;
}

.close-btn:hover {
    background: var(--text);
    color: var(--bg);
}

.readme-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.5rem 1.1rem;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.readme-btn:hover {
    background: var(--text);
    color: var(--bg);
}

.docs-btn {
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.5rem 1.1rem;
    cursor: pointer;
    font-family: inherit;
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.docs-btn:hover {
    background: var(--text);
    color: var(--bg);
}

.docs-section {
    border: 1px solid var(--border);
    padding: 1.5rem;
    font-size: 0.8rem;
    line-height: 1.7;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.docs-section h2 {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.docs-section h3 {
    font-size: 0.8rem;
    font-weight: 700;
    margin-top: 1rem;
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
}

.docs-section p {
    margin-bottom: 0.4rem;
}

.docs-section ul {
    list-style: none;
    padding: 0;
    margin-bottom: 0.4rem;
}

.docs-section li::before {
    content: "> ";
    color: var(--text-dim);
}

.about-section {
    border: 1px solid var(--border);
    padding: 1.5rem;
    font-size: 0.8rem;
    line-height: 1.7;
    min-height: 60vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.about-section h2 {
    font-size: 0.85rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.about-section h3 {
    font-size: 0.8rem;
    font-weight: 700;
    margin-top: 1rem;
    margin-bottom: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dim);
}

.about-section p {
    margin-bottom: 0.4rem;
}

.about-section ul {
    list-style: none;
    padding: 0;
    margin-bottom: 0.4rem;
}

.about-section li::before {
    content: "> ";
    color: var(--text-dim);
}

.about-close {
    margin-top: 1rem;
    background: none;
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.3rem 0.6rem;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.about-close:hover {
    background: var(--text);
    color: var(--bg);
}

@media (max-width: 640px) {
    .header-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .product-grid {
        grid-template-columns: 1fr;
    }
}

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 2px solid var(--text);
    outline-offset: 2px;
}