/* TriNetra - shared stylesheet for the static public pages (about, technology,
   faq, privacy, cookies, terms, 404). These ship as plain HTML in
   frontend/public/ - no router, no build step, no JS - so they carry their
   own copy of the landing page's paper-and-ink look rather than pulling from
   the Vite bundle a static file can't reference. Self-hosted fonts only:
   these pages make zero third-party requests. */

@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/ibm-plex-sans-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/ibm-plex-sans-latin-500-normal.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Sans";
  src: url("/fonts/ibm-plex-sans-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Serif";
  src: url("/fonts/ibm-plex-serif-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Serif";
  src: url("/fonts/ibm-plex-serif-latin-600-normal.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Serif";
  src: url("/fonts/ibm-plex-serif-latin-700-normal.woff2") format("woff2");
  font-weight: 700;
  font-display: swap;
}

@font-face {
  font-family: "IBM Plex Mono";
  src: url("/fonts/ibm-plex-mono-latin-400-normal.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}

:root {
  color-scheme: light;

  --paper: #f6f4ef;
  --paper-2: #efece5;
  --card: #fffefb;

  --ink: #10151d;
  --ink-2: #3d4655;
  --ink-3: #5d6879;
  --rule: #d9d4c8;
  --rule-firm: #b4ad9c;

  --navy: #16233c;
  --navy-deep: #0b1322;
  --gold: #846626;
  --gold-soft: #c9a961;

  --smriti: #8f5214;
  --drishti: #0d5f74;
  --bhavishya: #513795;

  --font: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-serif: "IBM Plex Serif", "Iowan Old Style", Georgia, serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Mono", Consolas, monospace;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
}

::selection {
  background: var(--navy);
  color: var(--paper);
}

:focus-visible {
  outline: 2px solid var(--navy);
  outline-offset: 3px;
  border-radius: 2px;
}

h1, h2, h3 {
  font-family: var(--font-serif);
  font-weight: 600;
  letter-spacing: -0.02em;
  text-wrap: balance;
  margin: 0 0 0.6em;
}

p {
  margin: 0 0 1em;
  text-wrap: pretty;
}

a {
  color: var(--navy);
}

.p-shell {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* ------------------------------------------------------------- masthead */

.p-mast {
  border-bottom: 1px solid var(--rule);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
}

.p-mast::before {
  content: "";
  display: block;
  height: 3px;
  border-bottom: 1px solid rgba(0, 0, 0, 0.09);
  background: linear-gradient(to right, #ff9933 0 33.33%, #ffffff 33.33% 66.66%, #138808 66.66% 100%);
}

.p-mast-in {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem 1.5rem;
  padding: 0.8rem 0;
}

.p-lockup {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  text-decoration: none;
  color: inherit;
}

.p-seal-box {
  width: 44px;
  height: 28px;
  flex: none;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #ffffff;
  border-radius: 6px;
  padding: 2px 4px;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.08);
}

.p-seal-box img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.p-lockup-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.p-wordmark {
  font-family: var(--font-serif);
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--ink);
}

.p-lockup-sub {
  font-size: 0.68rem;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.p-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.4rem 1.4rem;
}

.p-nav a {
  color: var(--ink-2);
  text-decoration: none;
  font-size: 0.875rem;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 0.18s, border-color 0.18s;
}

.p-nav a:hover,
.p-nav a[aria-current="page"] {
  color: var(--ink);
  border-bottom-color: var(--gold-soft);
}

/* --------------------------------------------------------------- content */

.p-main {
  padding: 3rem 0 4.5rem;
}

.p-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  line-height: 1.1;
  max-width: 20ch;
}

.p-lede {
  font-size: 1.05rem;
  color: var(--ink-2);
  max-width: 66ch;
  margin-bottom: 0;
}

.p-prose {
  max-width: 74ch;
  margin-top: 2.5rem;
}

.p-prose h2 {
  font-size: 1.4rem;
  margin-top: 2.5rem;
}

.p-prose h2:first-child {
  margin-top: 0;
}

.p-prose h3 {
  font-size: 1.1rem;
  margin-top: 1.75rem;
}

.p-prose p,
.p-prose li {
  color: var(--ink-2);
}

.p-prose ul, .p-prose ol {
  margin: 0 0 1em;
  padding-left: 1.4em;
}

.p-prose li {
  margin-bottom: 0.4em;
}

.p-prose strong {
  color: var(--ink);
  font-weight: 600;
}

.p-note {
  margin-top: 2.5rem;
  padding: 1rem 1.25rem;
  background: var(--card);
  border: 1px solid var(--rule);
  border-left: 3px solid var(--gold);
  border-radius: 3px;
  font-size: 0.9rem;
  color: var(--ink-2);
}

.p-meta {
  font-size: 0.85rem;
  color: var(--ink-3);
  margin-top: 0.5rem;
}

/* ------------------------------------------------------------------ eyes */

.p-eye-deva {
  font-size: 1.5rem;
  line-height: 1;
  margin-right: 0.5rem;
}

/* ------------------------------------------------------------------- faq */

.p-faq {
  border-top: 1px solid var(--rule);
  margin-top: 2rem;
}

.p-faq details {
  border-bottom: 1px solid var(--rule);
  padding: 1.1rem 0;
}

.p-faq summary {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}

.p-faq summary::-webkit-details-marker {
  display: none;
}

.p-faq summary::before {
  content: "+";
  display: inline-block;
  width: 1.1em;
  color: var(--gold);
  font-weight: 700;
}

.p-faq details[open] summary::before {
  content: "\2212";
}

.p-faq p {
  margin: 0.75rem 0 0 1.1em;
  color: var(--ink-2);
  max-width: 68ch;
}

/* --------------------------------------------------------------------- 404 */

.p-404 h1 {
  font-size: clamp(3rem, 8vw, 5rem);
  color: var(--navy);
}

.p-404-code {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 1rem;
}

/* --------------------------------------------------------------- footer */

.p-foot {
  border-top: 1px solid var(--rule);
  background: var(--paper-2);
  padding: 2.5rem 0;
  font-size: 0.85rem;
  color: var(--ink-3);
}

.p-foot-in {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: flex-start;
}

.p-foot-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
}

.p-foot-links a {
  color: var(--ink-3);
  text-decoration: none;
}

.p-foot-links a:hover {
  color: var(--ink);
}

@media (max-width: 719px) {
  .p-shell {
    padding: 0 1.25rem;
  }

  .p-nav {
    display: none;
  }
}