/* Posture page — self-contained stylesheet.
   This page reuses class names (.section, .posture, .posture__row, .certs)
   with a different layout than the landing, so it ships its own complete
   stylesheet rather than overriding styles.css. Mirrors the prototype's
   single <style> block. */

:root {
  --ink: #0c0c0c;
  --paper: #faf6ec;
  --cream: #f4ede0;
  --cream-deep: #e8dfcd;
  --rule: rgba(12, 12, 12, 0.18);
  --rule-soft: rgba(12, 12, 12, 0.10);
  --muted: rgba(12, 12, 12, 0.55);
  --ok: oklch(0.48 0.08 145);
  --watch: oklch(0.66 0.11 78);
  --maxw: 1280px;
  --pad: clamp(20px, 4.4vw, 64px);
}
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; background: var(--paper); color: var(--ink); }
body { font-family: "Geist", system-ui, sans-serif; -webkit-font-smoothing: antialiased; font-feature-settings: "ss01", "ss02"; line-height: 1.55; }
a { color: inherit; }
.display { font-family: "Instrument Serif", serif; font-weight: 400; letter-spacing: -0.015em; line-height: 0.98; text-wrap: balance; }
.mono { font-family: "Geist Mono", monospace; letter-spacing: 0.1em; text-transform: uppercase; font-size: 11px; }
.em-italic { font-family: "Instrument Serif", serif; font-style: italic; color: var(--muted); }
.wrap { max-width: var(--maxw); margin: 0 auto; padding-inline: var(--pad); }

/* Nav */
.nav { position: sticky; top: 0; z-index: 30; background: color-mix(in srgb, var(--paper) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--rule-soft); }
.nav__inner { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.nav__brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.nav__brand span[data-mount] { width: 34px; height: 34px; display: block; }
.nav__brand svg { width: 34px; height: 34px; display: block; }
.nav__brand-text { display: flex; flex-direction: column; line-height: 1; }
.nav__brand-name { font-family: "Instrument Serif", serif; font-size: 22px; letter-spacing: -0.005em; }
.nav__brand-sub { font-family: "Geist Mono", monospace; font-size: 9px; letter-spacing: 0.18em; text-transform: uppercase; color: var(--muted); margin-top: 3px; }
.nav__links { display: flex; gap: 26px; font-family: "Geist Mono", monospace; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
.nav__links a { text-decoration: none; }
.nav__links a:hover { color: var(--ink); }
.nav__links a[aria-current] { color: var(--ink); }
.nav__cta { display: inline-flex; align-items: center; gap: 8px; border: 1px solid var(--ink); background: var(--ink); color: var(--paper); padding: 10px 18px; font-family: "Geist Mono", monospace; font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; text-decoration: none; }
.nav__cta:hover { opacity: 0.85; }
.nav__right { display: flex; align-items: center; gap: 16px; }
.nav__lang { display: inline-flex; border: 1px solid var(--rule); }
.nav__lang-btn { font-family: "Geist Mono", monospace; font-size: 10px; letter-spacing: 0.12em; text-transform: uppercase; padding: 8px 11px; background: transparent; color: var(--muted); border: none; cursor: pointer; line-height: 1; text-decoration: none; transition: background 0.15s ease, color 0.15s ease; }
.nav__lang-btn + .nav__lang-btn { border-left: 1px solid var(--rule); }
.nav__lang-btn:hover { color: var(--ink); }
.nav__lang-btn[aria-pressed="true"] { background: var(--ink); color: var(--paper); }
@media (max-width: 980px) { .nav__links { display: none; } }

/* Doc hero */
.doc-hero { padding-block: clamp(40px, 6vw, 88px) clamp(36px, 4.6vw, 64px); border-bottom: 1px solid var(--rule); }
.doc-hero__eyebrow { display: flex; align-items: center; gap: 14px; color: var(--muted); margin-bottom: 26px; }
.doc-hero__eyebrow::before { content: ""; width: 32px; height: 1px; background: currentColor; }
.doc-hero__title { font-size: clamp(44px, 6.4vw, 92px); margin: 0; }
.doc-hero__title em { font-style: italic; color: var(--muted); }
.doc-hero__lede { margin-top: 28px; max-width: 60ch; font-size: clamp(16px, 1.3vw, 19px); color: rgba(12,12,12,0.78); line-height: 1.55; text-wrap: pretty; }
.doc-hero__meta { margin-top: 40px; padding-top: 22px; border-top: 1px solid var(--rule-soft); display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: 28px; max-width: 760px; }
.doc-hero__meta div { font-family: "Geist Mono", monospace; }
.doc-hero__meta strong { display: block; font-weight: 500; text-transform: uppercase; letter-spacing: 0.14em; font-size: 10px; margin-bottom: 6px; color: var(--muted); }
.doc-hero__meta span { font-family: "Instrument Serif", serif; font-style: italic; font-size: 18px; }
@media (max-width: 720px) { .doc-hero__meta { grid-template-columns: repeat(2, 1fr); gap: 20px; } }

/* Section */
.section { padding-block: clamp(56px, 7vw, 104px); border-bottom: 1px solid var(--rule); }
.section__head { display: grid; grid-template-columns: minmax(0,1.1fr) minmax(0,0.9fr); gap: 48px; margin-bottom: 56px; align-items: end; }
@media (max-width: 800px) { .section__head { grid-template-columns: 1fr; gap: 22px; margin-bottom: 36px; } }
.section__num { font-family: "Geist Mono", monospace; font-size: 11px; letter-spacing: 0.14em; text-transform: uppercase; color: var(--muted); margin-bottom: 16px; }
.section__title { font-size: clamp(32px, 4.2vw, 56px); margin: 0; }
.section__title em { font-style: italic; color: var(--muted); }
.section__lede { font-size: 16px; line-height: 1.55; color: rgba(12,12,12,0.72); max-width: 44ch; margin: 0; text-wrap: pretty; }

/* Certs */
.certs { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
@media (max-width: 620px) { .certs { grid-template-columns: 1fr; } }
.cert { background: var(--cream); padding: 28px 28px 30px; display: flex; flex-direction: column; gap: 10px; min-height: 200px; }
.cert__tag { font-family: "Geist Mono", monospace; font-size: 9px; letter-spacing: 0.16em; text-transform: uppercase; color: var(--ink); align-self: flex-start; padding: 4px 9px; border: 1px solid var(--ink); background: color-mix(in srgb, var(--ok) 16%, var(--cream)); }
.cert__name { font-family: "Instrument Serif", serif; font-size: 30px; letter-spacing: -0.01em; line-height: 1.05; margin-top: 6px; }
.cert__desc { font-size: 14px; line-height: 1.55; color: rgba(12,12,12,0.78); margin: 0; text-wrap: pretty; }
.cert__meta { font-family: "Geist Mono", monospace; font-size: 11px; color: var(--muted); letter-spacing: 0.04em; line-height: 1.6; margin-top: auto; padding-top: 14px; border-top: 1px dashed var(--rule); }
.cert__meta b { color: var(--ink); font-weight: 500; }

/* Pillars */
.posture { margin: 0; display: flex; flex-direction: column; }
.posture__row { display: grid; grid-template-columns: minmax(0, 64px) minmax(0, 260px) minmax(0, 1fr); gap: 28px; padding: 24px 0; border-top: 1px solid var(--rule-soft); align-items: start; }
.posture__row:first-child { border-top: 1px solid var(--rule); }
.posture__row:last-child { border-bottom: 1px solid var(--rule); }
.posture__num { font-family: "Geist Mono", monospace; font-size: 11px; letter-spacing: 0.12em; color: var(--muted); padding-top: 4px; }
.posture__row dt { font-family: "Instrument Serif", serif; font-size: 23px; letter-spacing: -0.01em; line-height: 1.12; }
.posture__row dd { margin: 0; font-size: 15px; line-height: 1.58; color: rgba(12,12,12,0.78); max-width: 64ch; text-wrap: pretty; }
@media (max-width: 760px) { .posture__row { grid-template-columns: 1fr; gap: 8px; } .posture__num { padding-top: 0; } }

/* Lifecycle */
.flow { display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr; gap: 14px; align-items: stretch; }
@media (max-width: 980px) { .flow { grid-template-columns: 1fr; } .flow__arrow { display: none; } }
.flow__node { background: var(--cream); border: 1px solid var(--rule); padding: 22px; min-height: 188px; display: flex; flex-direction: column; gap: 8px; }
.flow__num { font-family: "Geist Mono", monospace; font-size: 11px; letter-spacing: 0.14em; color: var(--muted); }
.flow__title { font-family: "Instrument Serif", serif; font-size: 26px; letter-spacing: -0.01em; line-height: 1; }
.flow__desc { font-size: 13.5px; color: rgba(12,12,12,0.74); line-height: 1.5; text-wrap: pretty; }
.flow__arrow { width: 56px; height: 24px; align-self: center; opacity: 0.6; }

/* Two-up cards */
.grid2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--rule); border: 1px solid var(--rule); }
@media (max-width: 760px) { .grid2 { grid-template-columns: 1fr; } }
.card { background: var(--paper); padding: 28px; display: flex; flex-direction: column; gap: 12px; }
.card__title { font-family: "Instrument Serif", serif; font-size: 24px; letter-spacing: -0.01em; line-height: 1.08; }
.card p { margin: 0; font-size: 14.5px; line-height: 1.58; color: rgba(12,12,12,0.8); text-wrap: pretty; }
.card ul { list-style: none; margin: 6px 0 0; padding: 0; display: flex; flex-direction: column; gap: 8px; font-family: "Geist Mono", monospace; font-size: 11px; letter-spacing: 0.04em; color: var(--ink); }
.card li { padding-left: 16px; position: relative; line-height: 1.5; }
.card li::before { content: ""; position: absolute; left: 0; top: 6px; width: 6px; height: 6px; background: var(--ink); }

.end-note { font-size: 16px; line-height: 1.62; color: rgba(12,12,12,0.82); max-width: 60ch; margin: 0; }
.end-note a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--rule); }
.end-note a:hover { text-decoration-color: var(--ink); }

/* Footer */
.footer { background: var(--ink); color: rgba(244,237,224,0.55); padding-block: 40px; border-top: 1px solid rgba(244,237,224,0.12); }
.footer__inner { display: flex; justify-content: space-between; gap: 24px; font-family: "Geist Mono", monospace; font-size: 10px; letter-spacing: 0.14em; text-transform: uppercase; flex-wrap: wrap; }
.footer__inner a { text-decoration: none; }
.footer__inner a:hover { color: var(--paper); }
.footer__links { display: flex; gap: 24px; }