/* Pearl IDE — public website bundle */

:root {
    --pf-bg: #ffffff;
    --pf-fg: #131419;
    --pf-fg-muted: #5e636e;
    --pf-fg-dim: #8a8f99;
    --pf-border: #e6e7ea;
    --pf-surface: #f7f8fa;
    --pf-accent: #4d6cfa;
    --pf-accent-fg: #ffffff;
    --pf-accent-tint: #ecf0ff;
    --pf-success: #11a05f;
    --pf-warn: #f59e0b;
    --pf-danger: #d83a3a;
    --pf-radius: 10px;
    --pf-radius-sm: 6px;
    --pf-shadow: 0 1px 2px rgba(15, 17, 28, .04), 0 6px 24px rgba(15, 17, 28, .06);
    --pf-shadow-soft: 0 1px 1px rgba(15, 17, 28, .03);
    --pf-space-1: 4px;
    --pf-space-2: 8px;
    --pf-space-3: 12px;
    --pf-space-4: 16px;
    --pf-space-5: 24px;
    --pf-space-6: 32px;
    --pf-space-7: 48px;
    --pf-space-8: 72px;
    --pf-content: 1080px;
    --pf-narrow: 720px;
    --pf-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Inter", system-ui, sans-serif;
    --pf-font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", monospace;
}

@media (prefers-color-scheme: dark) {
    :root {
        --pf-bg: #0e1014;
        --pf-fg: #e8eaef;
        --pf-fg-muted: #a4a9b4;
        --pf-fg-dim: #6f7480;
        --pf-border: #1f232b;
        --pf-surface: #14171d;
        --pf-accent: #7a93ff;
        --pf-accent-tint: #1a1f33;
        --pf-shadow: 0 1px 2px rgba(0, 0, 0, .4), 0 6px 24px rgba(0, 0, 0, .35);
    }
}

* { box-sizing: border-box; }

html, body { margin: 0; padding: 0; }

body {
    background: var(--pf-bg);
    color: var(--pf-fg);
    font-family: var(--pf-font);
    font-size: 16px;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

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

img { max-width: 100%; height: auto; }

h1, h2, h3, h4 {
    font-weight: 600;
    line-height: 1.2;
    margin: 0 0 var(--pf-space-3) 0;
    letter-spacing: -0.01em;
}
h1 { font-size: clamp(2rem, 4vw + 1rem, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 2vw + 0.8rem, 2.2rem); }
h3 { font-size: 1.25rem; }
h4 { font-size: 1.05rem; }

p { margin: 0 0 var(--pf-space-3) 0; color: var(--pf-fg-muted); }

code, pre {
    font-family: var(--pf-font-mono);
    background: var(--pf-surface);
    border-radius: var(--pf-radius-sm);
}
code { padding: 1px 6px; font-size: 0.95em; }
pre { padding: var(--pf-space-4); overflow-x: auto; line-height: 1.45; }
pre code { background: transparent; padding: 0; }

.container {
    max-width: var(--pf-content);
    margin: 0 auto;
    padding: 0 var(--pf-space-5);
}
.container--narrow { max-width: var(--pf-narrow); }

/* ── nav ─────────────────────────────────────────────── */
.pf-nav {
    border-bottom: 1px solid var(--pf-border);
    background: var(--pf-bg);
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: saturate(120%) blur(8px);
}
.pf-nav__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--pf-space-3) 0;
}
.pf-nav__brand {
    color: var(--pf-fg);
    font-weight: 700;
    font-size: 1.05rem;
    letter-spacing: -0.01em;
    display: inline-flex;
    align-items: center;
    gap: var(--pf-space-2);
}
.pf-nav__brand:hover { text-decoration: none; }
.pf-nav__brand-mark {
    width: 22px; height: 22px;
    border-radius: 6px;
    background: linear-gradient(140deg, var(--pf-accent), #9bb0ff);
    display: inline-block;
}
.pf-nav__links {
    display: flex; gap: var(--pf-space-5);
    list-style: none; margin: 0; padding: 0;
}
.pf-nav__links a {
    color: var(--pf-fg-muted);
    font-size: 0.95rem;
}
.pf-nav__links a:hover { color: var(--pf-fg); text-decoration: none; }
.pf-nav__cta {
    display: inline-flex; gap: var(--pf-space-2);
}

@media (max-width: 720px) {
    .pf-nav__links { display: none; }
}

/* ── footer ──────────────────────────────────────────── */
.pf-footer {
    border-top: 1px solid var(--pf-border);
    margin-top: var(--pf-space-8);
    padding: var(--pf-space-6) 0;
    color: var(--pf-fg-dim);
    font-size: 0.9rem;
}
.pf-footer__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: var(--pf-space-6);
}
.pf-footer h4 {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--pf-fg);
    letter-spacing: 0.05em;
    margin-bottom: var(--pf-space-3);
}
.pf-footer ul { list-style: none; padding: 0; margin: 0; }
.pf-footer li { margin-bottom: var(--pf-space-2); }
.pf-footer a { color: var(--pf-fg-muted); }
.pf-footer__bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--pf-space-6);
    padding-top: var(--pf-space-4);
    border-top: 1px solid var(--pf-border);
    flex-wrap: wrap;
    gap: var(--pf-space-3);
}

/* ── buttons ─────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: var(--pf-space-2);
    padding: 10px 18px;
    border-radius: var(--pf-radius);
    font-weight: 500;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    font-size: 0.95rem;
    line-height: 1.2;
    transition: background .12s ease, color .12s ease, border-color .12s ease;
}
.btn:hover { text-decoration: none; }
.btn--primary { background: var(--pf-accent); color: var(--pf-accent-fg); }
.btn--primary:hover { filter: brightness(1.05); }
.btn--secondary {
    background: var(--pf-bg);
    color: var(--pf-fg);
    border-color: var(--pf-border);
}
.btn--secondary:hover { background: var(--pf-surface); }
.btn--ghost { background: transparent; color: var(--pf-fg); }
.btn--ghost:hover { background: var(--pf-surface); }
.btn--lg { padding: 14px 24px; font-size: 1rem; }
.btn--block { display: flex; width: 100%; justify-content: center; }

/* ── hero ────────────────────────────────────────────── */
.pf-hero {
    padding: var(--pf-space-8) 0;
    text-align: center;
}
.pf-hero__eyebrow {
    display: inline-block;
    color: var(--pf-accent);
    background: var(--pf-accent-tint);
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: var(--pf-space-4);
}
.pf-hero__lead {
    color: var(--pf-fg-muted);
    font-size: 1.1rem;
    max-width: 620px;
    margin: 0 auto var(--pf-space-5) auto;
}
.pf-hero__cta {
    display: flex;
    justify-content: center;
    gap: var(--pf-space-3);
    flex-wrap: wrap;
}

/* ── feature grid ────────────────────────────────────── */
.pf-features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--pf-space-5);
    padding: var(--pf-space-6) 0;
}
.pf-features__item {
    padding: var(--pf-space-5);
    border: 1px solid var(--pf-border);
    border-radius: var(--pf-radius);
    background: var(--pf-bg);
}
.pf-features__item h3 {
    font-size: 1.1rem;
    margin-bottom: var(--pf-space-2);
}
.pf-features__item p { margin: 0; }

/* ── pricing grid ────────────────────────────────────── */
.pf-pricing {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: var(--pf-space-4);
    margin: var(--pf-space-6) 0;
}
.pf-tier {
    padding: var(--pf-space-6);
    border: 1px solid var(--pf-border);
    border-radius: var(--pf-radius);
    background: var(--pf-bg);
    display: flex;
    flex-direction: column;
}
.pf-tier--featured {
    border-color: var(--pf-accent);
    box-shadow: var(--pf-shadow);
    position: relative;
}
.pf-tier--featured::before {
    content: "Most popular";
    position: absolute;
    top: -10px; left: 50%; transform: translateX(-50%);
    background: var(--pf-accent);
    color: var(--pf-accent-fg);
    font-size: 0.75rem;
    font-weight: 500;
    padding: 2px 10px;
    border-radius: 999px;
}
.pf-tier__name { font-size: 1.4rem; margin-bottom: var(--pf-space-1); }
.pf-tier__pitch { color: var(--pf-fg-muted); margin-bottom: var(--pf-space-4); font-size: 0.95rem; }
.pf-tier__features { list-style: none; padding: 0; margin: 0 0 var(--pf-space-5) 0; flex: 1; }
.pf-tier__features li {
    padding: var(--pf-space-2) 0;
    border-bottom: 1px solid var(--pf-border);
    font-size: 0.95rem;
}
.pf-tier__features li:last-child { border-bottom: 0; }

/* ── forms ───────────────────────────────────────────── */
.pf-form { display: grid; gap: var(--pf-space-4); margin-top: var(--pf-space-5); }
.pf-form label { display: block; font-size: 0.9rem; font-weight: 500; margin-bottom: var(--pf-space-1); }
.pf-form input,
.pf-form select,
.pf-form textarea {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--pf-border);
    border-radius: var(--pf-radius-sm);
    font-family: var(--pf-font);
    font-size: 0.95rem;
    background: var(--pf-bg);
    color: var(--pf-fg);
}
.pf-form input:focus,
.pf-form select:focus,
.pf-form textarea:focus {
    outline: none;
    border-color: var(--pf-accent);
    box-shadow: 0 0 0 3px var(--pf-accent-tint);
}
.pf-form textarea { resize: vertical; min-height: 140px; font-family: var(--pf-font); }
.pf-form__hint { color: var(--pf-fg-dim); font-size: 0.85rem; margin-top: 4px; }
.pf-form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--pf-space-3);
}
@media (max-width: 580px) {
    .pf-form__row { grid-template-columns: 1fr; }
}

/* ── alerts / banners ────────────────────────────────── */
.pf-alert {
    padding: var(--pf-space-3) var(--pf-space-4);
    border-radius: var(--pf-radius-sm);
    font-size: 0.95rem;
    margin: var(--pf-space-4) 0;
}
.pf-alert--success { background: rgba(17, 160, 95, 0.1); color: var(--pf-success); }
.pf-alert--error   { background: rgba(216, 58, 58, 0.1);  color: var(--pf-danger);  }
.pf-alert--info    { background: var(--pf-accent-tint);   color: var(--pf-accent);  }

/* ── docs / changelog list ───────────────────────────── */
.pf-doc-list { list-style: none; padding: 0; margin: var(--pf-space-5) 0; }
.pf-doc-list li {
    padding: var(--pf-space-3) 0;
    border-bottom: 1px solid var(--pf-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.pf-doc-list li:last-child { border-bottom: 0; }
.pf-doc-list a { font-weight: 500; }

/* ── download platform card ──────────────────────────── */
.pf-download {
    border: 1px solid var(--pf-border);
    border-radius: var(--pf-radius);
    padding: var(--pf-space-6);
    text-align: center;
    background: var(--pf-bg);
    margin: var(--pf-space-5) 0;
}
.pf-download__platforms {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: var(--pf-space-3);
    margin-top: var(--pf-space-5);
    text-align: left;
}
.pf-download__platforms a {
    display: block;
    padding: var(--pf-space-3);
    border: 1px solid var(--pf-border);
    border-radius: var(--pf-radius-sm);
    background: var(--pf-surface);
    color: var(--pf-fg);
    text-decoration: none;
}
.pf-download__platforms a:hover { border-color: var(--pf-accent); }

/* ── prose for legal / docs pages ────────────────────── */
.pf-prose { max-width: var(--pf-narrow); margin: 0 auto; padding: var(--pf-space-6) 0; }
.pf-prose h2 { margin-top: var(--pf-space-7); }
.pf-prose h3 { margin-top: var(--pf-space-5); }
.pf-prose ul, .pf-prose ol { padding-left: var(--pf-space-5); }
.pf-prose li { margin-bottom: var(--pf-space-2); color: var(--pf-fg-muted); }

/* ── utility ─────────────────────────────────────────── */
.text-center { text-align: center; }
.text-muted  { color: var(--pf-fg-muted); }
.mt-4 { margin-top: var(--pf-space-4); }
.mt-6 { margin-top: var(--pf-space-6); }
.mb-4 { margin-bottom: var(--pf-space-4); }
.mb-6 { margin-bottom: var(--pf-space-6); }

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

/* ── account dashboard ───────────────────────────────── */
.pf-account {
    display: grid;
    grid-template-columns: 260px 1fr;
    gap: var(--pf-space-6);
    padding: var(--pf-space-6) 0;
}
@media (max-width: 720px) {
    .pf-account { grid-template-columns: 1fr; }
}
.pf-account__nav {
    border-right: 1px solid var(--pf-border);
    padding-right: var(--pf-space-5);
    display: flex;
    flex-direction: column;
    gap: var(--pf-space-4);
}
.pf-account__nav h2 {
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--pf-fg-dim);
    letter-spacing: 0.05em;
    margin: 0;
}
.pf-account__nav ul { list-style: none; padding: 0; margin: 0; }
.pf-account__nav li { margin-bottom: var(--pf-space-1); }
.pf-account__nav a {
    display: block;
    padding: 8px 12px;
    border-radius: var(--pf-radius-sm);
    color: var(--pf-fg-muted);
    font-size: 0.95rem;
}
.pf-account__nav a:hover { background: var(--pf-surface); text-decoration: none; }
.pf-account__nav a.is-active { background: var(--pf-accent-tint); color: var(--pf-accent); }

.pf-account__profile {
    padding: var(--pf-space-4);
    border: 1px solid var(--pf-border);
    border-radius: var(--pf-radius);
    display: flex;
    flex-direction: column;
    gap: var(--pf-space-3);
    align-items: flex-start;
}
.pf-account__avatar {
    width: 48px; height: 48px;
    border-radius: 50%;
    object-fit: cover;
}
.pf-account__name { font-weight: 600; font-size: 0.95rem; }
.pf-account__email { font-size: 0.85rem; color: var(--pf-fg-muted); word-break: break-all; }
.pf-account__main {
    min-width: 0;
}
.pf-account__main h1 {
    font-size: 1.6rem;
    margin-bottom: var(--pf-space-3);
}
.pf-account__main section { margin-bottom: var(--pf-space-7); }

.pf-account__card {
    border: 1px solid var(--pf-border);
    border-radius: var(--pf-radius);
    padding: var(--pf-space-5);
    background: var(--pf-bg);
}
.pf-account__card-row {
    display: flex;
    gap: var(--pf-space-5);
    flex-wrap: wrap;
    margin-bottom: var(--pf-space-4);
}
.pf-account__card-row:last-child { margin-bottom: 0; }

.pf-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: var(--pf-space-4);
    font-size: 0.95rem;
}
.pf-table th, .pf-table td {
    padding: var(--pf-space-3);
    border-bottom: 1px solid var(--pf-border);
    text-align: left;
    vertical-align: top;
}
.pf-table th { font-weight: 500; color: var(--pf-fg-muted); font-size: 0.85rem; text-transform: uppercase; letter-spacing: .04em; }

.pf-bar {
    width: 100%; height: 8px; background: var(--pf-surface); border-radius: 999px; overflow: hidden;
}
.pf-bar__fill { height: 100%; background: var(--pf-accent); }

.pf-pill {
    display: inline-block;
    padding: 2px 10px;
    border-radius: 999px;
    background: var(--pf-surface);
    font-size: 0.8rem;
    color: var(--pf-fg-muted);
    text-transform: capitalize;
}