/* static/style.css — site-wide stylesheet for the post-gate pages.
 *
 * Design contract:
 *   - Zero external resources. No web fonts, no CDN, nothing but this file.
 *     The CSP (font-src 'self', style-src 'self') enforces the same rule.
 *     Everything is a system font stack or a local token.
 *   - Dark terminal palette: near-black ground, off-white ink, one green
 *     accent. Monospace for code and headings; system-ui for body text.
 *   - Custom-property tokens first, layout second, components last.
 *
 * All styling for the five gated pages lives here. Inline <style> blocks and
 * style="" attributes are forbidden by CSP, so nothing is styled in the HTML.
 */

/* ---------- 1. Tokens ---------- */

:root {
    /* Palette */
    --bg: #0d0d0d;            /* page ground */
    --bg-elevated: #141414;   /* cards, code, inset areas */
    --border: #262626;        /* hairline strokes */
    --fg: #e8e8e8;            /* primary ink */
    --fg-muted: #9c9c9c;      /* secondary text */
    --fg-faint: #666666;      /* tertiary text, footer */
    --accent: #00ff88;        /* the one color that means "live/here" */
    --accent-ink: #02170d;    /* text drawn on the accent */
    --error: #ff5f56;         /* reserved for gate errors (challenge.css) */

    /* Type */
    --font-mono: ui-monospace, "Cascadia Code", "Fira Code", monospace;
    --font-body: system-ui, sans-serif;

    /* Layout */
    --measure: 46rem;         /* comfortable reading width */
    --space: 1rem;
    --radius: 3px;

    color-scheme: dark;
}

/* ---------- 2. Base ---------- */

* {
    box-sizing: border-box;
}

html {
    background: var(--bg);
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--fg);
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* Anchors read as actions, not decoration. */
a {
    color: var(--accent);
    text-decoration: none;
    border-bottom: 1px solid transparent;
}

a:hover {
    border-bottom-color: currentColor;
}

a:visited {
    color: var(--accent); /* no visited-purple on a terminal palette */
}

/* One clearly visible keyboard focus ring for the whole site. */
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
    border-radius: 1px;
}

::selection {
    background: var(--accent);
    color: var(--accent-ink);
}

code,
pre,
kbd {
    font-family: var(--font-mono);
    font-size: 0.9em;
}

code {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.05em 0.35em;
}

h1, h2, h3, h4 {
    font-family: var(--font-mono);
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.01em;
    margin: 0 0 var(--space);
}

/* ---------- 3. Layout ---------- */

/* Shared page shell for the four interior pages. */
.page {
    max-width: var(--measure);
    margin: 0 auto;
    padding: 2rem 1.25rem 3rem;
    display: flex;
    flex-direction: column;
    min-height: 100dvh;
}

.page-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: var(--space);
    flex-wrap: wrap;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 2.5rem;
}

.wordmark {
    font-family: var(--font-mono);
    color: var(--fg);
}

.wordmark .dot {
    color: var(--accent);
}

/* The nav present on every page. */
.nav {
    display: flex;
    gap: 1.25rem;
    flex-wrap: wrap;
    font-family: var(--font-mono);
    font-size: 0.875rem;
}

.nav a {
    color: var(--fg-muted);
    border-bottom-color: transparent;
}

.nav a:hover {
    color: var(--fg);
}

.nav a[aria-current="page"] {
    color: var(--accent);
}

.page > main {
    flex: 1;
}

.page-footer {
    margin-top: 3rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border);
    font-family: var(--font-mono);
    font-size: 0.75rem;
    color: var(--fg-faint);
}

.page-footer code {
    background: transparent;
    border: none;
    padding: 0;
    color: var(--fg-faint);
}

/* The footer's disclosure link reads as part of the quiet line, not as the
 * page's green action color. */
.page-footer a {
    color: var(--fg-faint);
    border-bottom-color: transparent;
}

.page-footer a:hover {
    color: var(--fg);
    border-bottom-color: currentColor;
}

/* ---------- 4. Landing (index) — one screen, no scroll ---------- */

.landing {
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1.5rem;
    /* Anchors the absolute footer bar to the viewport-sized screen. */
    position: relative;
}

.landing-inner {
    max-width: 40rem;
    width: 100%;
}

/* Terminal readout line above the name. */
.eyebrow {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--accent);
    margin: 0 0 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.eyebrow::before {
    content: "";
    width: 0.5rem;
    height: 0.5rem;
    background: var(--accent);
    border-radius: 50%;
    flex: none;
    box-shadow: 0 0 8px var(--accent);
}

.landing h1 {
    font-size: clamp(2rem, 6vw, 3rem);
    margin: 0 0 0.75rem;
}

.landing .role {
    font-family: var(--font-mono);
    color: var(--fg-muted);
    margin: 0 0 1.75rem;
}

.landing .pitch {
    margin: 0 0 2.5rem;
    max-width: 34rem;
}

.landing .pitch code {
    white-space: nowrap;
}

.landing .nav {
    font-size: 1rem;
    gap: 1.75rem;
}

/* Footer bar pinned under the centered landing screen. */
.landing-footer {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 1.25rem;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 0.7rem;
}

.landing-footer a {
    color: var(--fg-faint);
    border-bottom-color: transparent;
}

.landing-footer a:hover {
    color: var(--fg);
    border-bottom-color: currentColor;
}

/* ---------- 5. Prose (interior pages) ---------- */

.lead {
    color: var(--fg-muted);
    font-size: 1.05rem;
    max-width: 38rem;
    margin: 0 0 2.5rem;
}

h2.rule {
    /* Section heading with a hairline that runs past the text. */
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.05rem;
    color: var(--fg-muted);
    font-weight: 500;
}

h2.rule::after {
    content: "";
    flex: 1;
    height: 1px;
    background: var(--border);
}

/* ---------- 6. Project cards (projects) ---------- */

.proj-list {
    display: grid;
    gap: 1.25rem;
    margin: 0 0 1.25rem;
}

.proj {
    background: var(--bg-elevated);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.4rem 1.5rem;
}

.proj h3 {
    margin: 0 0 0.25rem;
    font-size: 1.05rem;
}

.proj .tagline {
    color: var(--fg-muted);
    margin: 0 0 1rem;
}

/* The small state label at the top of a card ("ongoing"). Lowercase, in the
   one accent color, on a hairline of its own. */
.proj .status {
    display: inline-block;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 0.08em 0.6em;
    margin-bottom: 0.9rem;
}

.proj .constraints {
    list-style: none;
    margin: 0 0 1.1rem;
    padding: 0;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--fg-faint);
}

.proj .constraints li {
    padding-left: 1.1rem;
    position: relative;
    margin-bottom: 0.15rem;
}

.proj .constraints li::before {
    content: ">";
    position: absolute;
    left: 0;
    color: var(--accent);
}

.proj .repo {
    font-family: var(--font-mono);
    font-size: 0.82rem;
}

.proj .repo::after {
    content: " ↗";
}

/* ---------- 7. Interior page headings & lists ---------- */

/* Quiet page-name heading; the "#" reads as a terminal comment marker. */
.page-title {
    font-family: var(--font-mono);
    font-size: 1.35rem;
    font-weight: 600;
    margin: 0 0 1.5rem;
}

.page-title::before {
    content: "# ";
    color: var(--fg-faint);
}

/* Essay list (writing). Titles are plain text until the posts exist —
 * nothing links to a page that isn't there yet. */
.essays {
    list-style: none;
    margin: 0 0 2rem;
    padding: 0;
    display: grid;
    gap: 0.4rem;
}

.essays li {
    padding-left: 1.1rem;
    position: relative;
}

.essays li::before {
    content: ">";
    position: absolute;
    left: 0;
    color: var(--accent);
}

/* The one-line contact channel. */
.mailto {
    font-family: var(--font-mono);
    font-size: 1.25rem;
}

/* ---------- 8. Misc helpers ---------- */

.muted {
    color: var(--fg-muted);
}

.faint {
    color: var(--fg-faint);
}