/* simd.dev landing page styles */

:root {
    --bg: #fdfdfd;
    --fg: #1d2129;
    --muted: #5b6677;
    --accent: #4a7afe;
    --accent-soft: #e6efff;
    --code-bg: #f4f6f8;
    --border: #e3e6ec;
    --pill: #2c5282;
    --pill-bg: #e6efff;
    --warm-pill: #d09a3a;
    --warm-pill-bg: #fff4e0;
}

* { box-sizing: border-box; }

html, body {
    margin: 0; padding: 0;
    background: var(--bg);
    color: var(--fg);
    font: 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body { max-width: 880px; margin: 0 auto; padding: 0 1.25rem 4rem; }

/* WIP banner -- very obvious top-of-page strip until the project stabilizes. */
.wip-banner {
    margin: 1rem -1.25rem 0;
    padding: 0.7rem 1.25rem;
    background: repeating-linear-gradient(
        45deg,
        #fff4cc,
        #fff4cc 14px,
        #ffe89a 14px,
        #ffe89a 28px
    );
    border-top: 3px solid #d09a3a;
    border-bottom: 3px solid #d09a3a;
    color: #5b430b;
    font-size: 0.95rem;
    text-align: center;
}
.wip-banner strong { color: #3d2a00; font-weight: 700; letter-spacing: 0.01em; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { font-weight: 700; letter-spacing: -0.01em; }
h1 { font-size: 2.4rem; margin: 0 0 0.4rem; }
h2 { font-size: 1.4rem; margin: 2.2rem 0 1rem; }
h3 { font-size: 1.05rem; margin: 0 0 0.4rem; }

code {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.92em;
    background: var(--code-bg);
    padding: 1px 5px;
    border-radius: 3px;
}

pre {
    margin: 0;
    background: var(--code-bg);
    padding: 10px 12px;
    border-radius: 6px;
    overflow-x: auto;
    font-size: 0.92em;
    line-height: 1.45;
}

p { margin: 0 0 0.9rem; }
.muted { color: var(--muted); }

/* Hero */
.hero { padding: 3rem 0 1.5rem; text-align: center; }
.hero h1 a {
    color: inherit;
    text-decoration: none;
}
.hero h1 a:hover {
    color: var(--accent);
}
.tagline { color: var(--muted); font-size: 1.1rem; max-width: 640px; margin: 0 auto 1.4rem; }
.cta { display: flex; gap: 0.6rem; justify-content: center; flex-wrap: wrap; }
.btn {
    display: inline-block;
    padding: 0.6rem 1.1rem;
    border-radius: 6px;
    border: 1px solid var(--border);
    font-weight: 600;
    color: var(--fg);
    background: white;
    transition: background 0.1s, border-color 0.1s;
}
.btn:hover { background: var(--accent-soft); border-color: var(--accent); text-decoration: none; }
.btn.primary { background: var(--accent); color: white; border-color: var(--accent); }
.btn.primary:hover { background: #345fdf; border-color: #345fdf; }

/* Search */
.search { margin-top: 1.5rem; }
.searchbox {
    position: relative;
    display: flex;
    gap: 0.6rem;
    align-items: center;
    margin-top: 0.5rem;
}
#q {
    flex: 1;
    font: inherit;
    font-size: 1rem;
    padding: 0.65rem 0.9rem;
    border: 1.5px solid var(--border);
    border-radius: 6px;
    background: white;
    transition: border-color 0.1s;
}
#q:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
#search-status {
    font-size: 0.85em;
    white-space: nowrap;
}

/* Filter chips (arch, family) below the search box. */
.chip-row {
    display: flex;
    gap: 0.5rem;
    align-items: flex-start;
    margin-top: 0.55rem;
    font-size: 0.85em;
}
.chip-label {
    flex: 0 0 auto;
    color: var(--muted);
    padding: 4px 0;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.92em;
}
.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
    flex: 1 1 auto;
    min-width: 0;          /* allow flex shrink for the truncation below */
}

/* Collapsible chip row -- when collapsed, clip to ~one line; when expanded
   (the "more" button toggles a class), let it wrap to as many rows as needed. */
.chips.collapsible {
    max-height: 1.9em;
    overflow: hidden;
}
.chips.collapsible.expanded {
    max-height: none;
}
.chip-toggle {
    flex: 0 0 auto;
    font: inherit;
    font-size: 0.85em;
    padding: 2px 8px;
    border: 1px dashed var(--border);
    border-radius: 999px;
    background: transparent;
    color: var(--muted);
    cursor: pointer;
    align-self: flex-start;
}
.chip-toggle:hover, .chip-toggle:focus {
    border-color: var(--accent);
    color: var(--accent);
    outline: none;
}
.chips .chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font: inherit;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.85em;
    padding: 2px 8px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: white;
    color: var(--fg);
    cursor: pointer;
    transition: background 0.05s, border-color 0.05s, color 0.05s;
}
.chips .chip:hover, .chips .chip:focus {
    border-color: var(--accent);
    background: var(--accent-soft);
    outline: none;
}
.chips .chip.active {
    background: var(--accent);
    border-color: var(--accent);
    color: white;
}
.chips .chip-count {
    font-size: 0.85em;
    opacity: 0.65;
}
.chips .chip.active .chip-count { opacity: 0.85; }

/* Results section -- hidden until the query produces something. Borders
   on both sides so the chip list doesn't visually blend into the card
   that follows. */
.results-section {
    margin-top: 1.2rem;
    padding: 0.9rem 0;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.results-head {
    display: flex;
    align-items: baseline;
    gap: 0.6rem;
    margin-bottom: 0.4rem;
}
.results-head h3 {
    margin: 0;
    font-size: 0.95rem;
}
.results-head .muted { font-size: 0.85em; }

/* Results list */
.results {
    list-style: none;
    margin: 0.4rem 0 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem 0.5rem;
    max-height: 22rem;
    overflow-y: auto;
}
.results:empty { display: none; }
.results li {
    display: inline-block;
}
.results button {
    font: inherit;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 0.9em;
    padding: 3px 8px;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: white;
    color: var(--fg);
    cursor: pointer;
    transition: background 0.05s, border-color 0.05s;
}
.results button:hover, .results button:focus {
    background: var(--accent-soft);
    border-color: var(--accent);
    outline: none;
}
.results button.is-type {
    border-color: var(--warm-pill);
    background: var(--warm-pill-bg);
}
.results button.is-type:hover, .results button.is-type:focus {
    border-color: var(--warm-pill);
    background: #fde8c0;
}

/* Detail card */
.card {
    margin-top: 1rem;
    padding: 1rem 1.1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: white;
    box-shadow: 0 1px 3px rgba(0,0,0,0.03);
}
.card.is-type { border-color: var(--warm-pill); }
.card-head {
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: 0.4rem 0.5rem;
    margin-bottom: 0.6rem;
}
.card-head .name {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--fg);
}
.tag {
    font-size: 11px;
    padding: 1px 7px;
    border-radius: 999px;
    background: var(--pill-bg);
    color: var(--pill);
    font-weight: 500;
}
.tag.kind { background: var(--warm-pill-bg); color: var(--warm-pill); }
.tag.arch { background: #ede0f3; color: #6a3c80; }
.card .signature {
    margin-bottom: 0.6rem;
}
.card .description {
    margin-bottom: 0.6rem;
    color: #2d3340;
}
.card .pseudocode-toggle {
    display: block;
    cursor: pointer;
    color: var(--accent);
    font-size: 0.92em;
    user-select: none;
    margin-bottom: 0.3rem;
}
.card .pseudocode-toggle::before {
    content: '▶';
    display: inline-block;
    width: 14px;
    color: var(--accent);
    font-size: 11px;
}
.card details[open] .pseudocode-toggle::before { content: '▼'; }
.card details > pre {
    max-height: 320px;
    overflow: auto;
    font-size: 0.88em;
    /* ARM ships some SVE pseudocodes as a single-line prose paragraph
       (no newlines). pre-wrap preserves any newlines that ARE there and
       wraps long lines at word boundaries -- avoids the "single horizontal
       scroll line" failure mode. */
    white-space: pre-wrap;
}
.card .upstream-link {
    display: inline-block;
    font-size: 0.92em;
}
.card .upstream-links {
    margin-top: 0.6rem;
    font-size: 0.92em;
}

/* About cards */
.cards {
    display: grid;
    gap: 0.9rem;
    grid-template-columns: 1fr 1fr;
    margin-top: 0.4rem;
}
@media (max-width: 640px) { .cards { grid-template-columns: 1fr; } }

.about-card {
    padding: 1rem 1.1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: white;
}
.about-card h3 { font-size: 1.05rem; margin: 0 0 0.4rem; }
.about-card h3 a {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}
.about-card p { font-size: 0.95rem; margin: 0 0 0.5rem; }
.about-card p:last-child { margin-bottom: 0; }
.about-card .meta { font-size: 0.85rem; color: var(--muted); }

/* Why / related projects */
.why ul { padding-left: 1.2rem; }
.why li { margin-bottom: 0.5rem; }

/* Footer */
.footer {
    margin-top: 3rem;
    padding-top: 1.2rem;
    border-top: 1px solid var(--border);
    font-size: 0.88rem;
    color: var(--muted);
    text-align: center;
}