/* ============================================================
   Born From Us - bornfromus.com
   Brand system per website brief §3. Plain CSS, no build step.
   ============================================================ */

/* ---------- Design tokens (brief 3.1 colors, sampled from cover) ---------- */
:root {
  --navy:          #1B2E48;
  --navy-deep:     #12213A;
  --cream:         #F4EEE1;
  --gold:          #C9A35C;
  --gold-soft:     #d8b878;
  --ink:           #1F1C16;
  --paper-text:    #F4EEE1; /* body text on navy = cream */
  --muted:         #6B6456; /* secondary on cream */
  --muted-on-navy: #A8B3C4;

  --maxw: 1120px;
  --gap: clamp(1.25rem, 4vw, 2.5rem);
  --radius: 14px;

  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --sans: "Archivo", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;

  --ease: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
/* Keep anchored sections clear of the sticky nav */
:target { scroll-margin-top: 84px; }

body {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.075rem);
  line-height: 1.65;
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; }

/* Keep short brand phrases from breaking across lines */
.nowrap { white-space: nowrap; }

/* The hidden attribute must always win over component display rules
   (e.g. .notify__form is display:flex; hide it on success). */
[hidden] { display: none !important; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.12; margin: 0; }

/* ---------- Accessibility helpers ---------- */
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 1rem; top: -3rem; z-index: 200;
  background: var(--gold); color: var(--navy); padding: 0.6rem 1rem;
  border-radius: 8px; font-weight: 600; text-decoration: none;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 1rem; }

/* Visible focus for keyboard users on every interactive element */
a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--gold);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Layout ---------- */
.wrap { width: min(100% - 2.5rem, var(--maxw)); margin-inline: auto; }
.wrap--narrow { width: min(100% - 2.5rem, 720px); }

.section { padding: clamp(3.5rem, 8vw, 6.5rem) 0; }
.section--cream { background: var(--cream); color: var(--ink); }
.section--navy { background: var(--navy); color: var(--paper-text); }
.section--navy-deep {
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-deep) 100%);
  color: var(--paper-text);
}

/* ---------- Shared type elements ---------- */
.eyebrow {
  font-family: var(--sans);
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--gold);
  margin: 0 0 1.1rem;
}
.eyebrow--gold { color: var(--gold); } /* on navy, same gold reads well */

/* Thin gold rule under an emphasized final clause (brief 3.2) */
.u-underline {
  position: relative;
  display: inline;
  background-image: linear-gradient(var(--gold), var(--gold));
  background-repeat: no-repeat;
  background-position: 0 100%;
  background-size: 100% 2px;
  padding-bottom: 0.12em;
}

/* ---------- Buttons (brief 7) ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.9rem 1.5rem;
  border-radius: 999px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
              border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.btn--solid { background: var(--gold); color: var(--navy); }
.btn--solid:hover { background: var(--gold-soft); }
.btn--outline { background: transparent; color: var(--gold); border-color: var(--gold); }
.btn--outline:hover { background: var(--gold); color: var(--navy); }
/* Ghost/secondary link on navy hero */
.btn--ghost {
  background: transparent; color: var(--paper-text);
  border-color: transparent; padding-inline: 0.25rem;
  border-radius: 4px; letter-spacing: 0.04em;
}
.btn--ghost:hover { color: var(--gold); }
.btn:active { transform: translateY(1px); }

/* ---------- Brand pill/capsule motif (brief 3.4) ---------- */
.pill {
  display: inline-block; width: 26px; height: 13px;
  border: 1.5px solid var(--gold); border-radius: 999px;
}
.pill--gold { border-color: var(--gold); }

/* ============================================================
   STICKY NAV
   ============================================================ */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 100;
  transition: background-color 0.3s var(--ease), box-shadow 0.3s var(--ease),
              border-color 0.3s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav[data-state="top"] { background: transparent; }
.nav[data-state="scrolled"] {
  background: var(--navy);
  border-bottom-color: rgba(201, 163, 92, 0.28);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.22);
}
.nav__inner {
  width: min(100% - 2.5rem, var(--maxw));
  margin-inline: auto;
  display: flex; align-items: center; gap: 1.25rem;
  height: 68px;
}
.nav__brand {
  display: inline-flex; align-items: center; gap: 0.6rem;
  text-decoration: none; color: var(--cream); margin-right: auto;
}
.nav__wordmark {
  font-family: var(--sans); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.18em; font-size: 0.9rem;
}
.nav__links { display: flex; gap: 1.6rem; }
.nav__links a {
  color: var(--cream); text-decoration: none; font-size: 0.9rem;
  font-weight: 500; letter-spacing: 0.02em; padding: 0.3rem 0;
  position: relative;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 0; height: 2px; background: var(--gold);
  transition: width 0.22s var(--ease);
}
.nav__links a:hover::after, .nav__links a:focus-visible::after { width: 100%; }
.nav__cta { padding: 0.6rem 1.15rem; font-size: 0.75rem; }

/* Mobile toggle (hamburger) */
.nav__toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: 0; cursor: pointer; padding: 8px;
}
.nav__toggle span {
  width: 24px; height: 2px; background: var(--cream);
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav__mobile {
  display: none; flex-direction: column; gap: 0.25rem;
  background: var(--navy); border-top: 1px solid rgba(201,163,92,0.2);
  padding: 0.75rem 1.25rem 1.25rem;
}
.nav__mobile a {
  color: var(--cream); text-decoration: none; padding: 0.75rem 0.25rem;
  font-size: 1rem; border-bottom: 1px solid rgba(255,255,255,0.06);
}
.nav__mobile .btn { margin-top: 0.75rem; justify-content: center; border-bottom: 0; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  background: var(--navy);
  color: var(--paper-text);
  overflow: hidden;
  padding: clamp(7rem, 14vw, 9.5rem) 0 clamp(3.5rem, 8vw, 6rem);
}
/* Atmospheric photographic backdrop (the fingertip-touch photo), heavily
   scrimmed so headline stays legible - replicates the cover's left-text feel. */
.hero__bg {
  position: absolute; inset: 0;
  /* Show only the text-free right side of the banner (reflected hand + skyline);
     a strong navy scrim on the left keeps the headline clean and hides the
     photo's own baked-in wordmark. */
  background:
    linear-gradient(90deg, var(--navy) 0%, var(--navy) 24%, rgba(27,46,72,0.9) 56%, rgba(27,46,72,0.6) 100%),
    linear-gradient(0deg, var(--navy) 0%, rgba(27,46,72,0) 46%),
    url("assets/hero-hands.jpg") 100% 50% / cover no-repeat;
  opacity: 1;
}
.hero__inner {
  position: relative;
  width: min(100% - 2.5rem, var(--maxw));
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: center;
}
.hero__title {
  font-size: clamp(2.5rem, 6.5vw, 4.4rem);
  margin: 0 0 1.25rem;
  letter-spacing: -0.01em;
}
.hero__lede {
  font-size: clamp(1.05rem, 1rem + 0.5vw, 1.35rem);
  color: var(--cream);
  max-width: 34ch;
  margin: 0 0 1.5rem;
}
.hero__authors {
  font-family: var(--serif); font-style: italic;
  color: var(--muted-on-navy); font-size: 1.05rem; margin: 0 0 2rem;
}
.hero__actions { display: flex; flex-wrap: wrap; align-items: center; gap: 1rem 1.5rem; }

.hero__art { justify-self: center; }
.hero__art img {
  width: min(340px, 74vw);
  height: auto;
  border-radius: 6px;
  box-shadow:
    0 2px 4px rgba(0,0,0,0.25),
    0 24px 60px rgba(0,0,0,0.55);
  transform: perspective(1400px) rotateY(-9deg);
  transition: transform 0.5s var(--ease);
}
.hero__art img:hover { transform: perspective(1400px) rotateY(-4deg); }

/* ============================================================
   ABOUT / THE MIRROR
   ============================================================ */
.about__hed { font-size: clamp(2rem, 4.5vw, 3.1rem); margin-bottom: 1rem; }
.about__mirror {
  font-family: var(--serif);
  font-size: clamp(1.35rem, 2.4vw, 1.9rem);
  color: var(--ink);
  margin: 0 0 2.25rem;
  max-width: 30ch;
}
.about__body { max-width: 62ch; }
.about__body p { color: var(--ink); margin: 0 0 1.15rem; }
.about__body p + p { color: #35301f; }

.through-line__label {
  text-transform: uppercase; letter-spacing: 0.12em; font-size: 0.8rem;
  font-weight: 600; color: var(--muted); margin: 3rem 0 1.5rem;
}
.through-line {
  list-style: none; margin: 0; padding: 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem;
}
.through-line li {
  border-top: 2px solid var(--gold);
  padding-top: 1rem;
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.8vw, 1.5rem);
  color: var(--ink);
}
.through-line__num {
  display: block; font-family: var(--sans); font-weight: 700;
  font-size: 0.8rem; letter-spacing: 0.1em; color: var(--gold);
  margin-bottom: 0.5rem;
}

/* ============================================================
   INSIDE THE BOOK
   ============================================================ */
.inside__hed { font-size: clamp(1.8rem, 3.8vw, 2.8rem); margin-bottom: 1.25rem; color: var(--cream); }
.inside__intro { color: var(--muted-on-navy); max-width: 60ch; margin: 0 0 2.5rem; }

.parts { display: flex; flex-direction: column; gap: 0.85rem; }
.part {
  border: 1px solid rgba(201,163,92,0.28);
  border-radius: var(--radius);
  background: rgba(255,255,255,0.03);
  overflow: hidden;
}
.part[open] { background: rgba(255,255,255,0.05); }
.part summary {
  display: flex; align-items: baseline; gap: 1rem; flex-wrap: wrap;
  padding: 1.25rem 1.4rem;
  cursor: pointer;
  list-style: none;
  transition: background-color 0.2s var(--ease);
}
.part summary::-webkit-details-marker { display: none; }
.part summary:hover { background: rgba(201,163,92,0.08); }
.part__kicker {
  font-family: var(--sans); text-transform: uppercase; letter-spacing: 0.12em;
  font-size: 0.72rem; font-weight: 700; color: var(--gold);
}
.part__title {
  font-family: var(--serif); font-size: clamp(1.25rem, 2.2vw, 1.6rem);
  color: var(--cream); margin-right: auto;
}
.part__meta { font-size: 0.8rem; color: var(--muted-on-navy); letter-spacing: 0.03em; }
/* Chevron indicator */
.part summary::after {
  content: ""; width: 10px; height: 10px; flex: none;
  border-right: 2px solid var(--gold); border-bottom: 2px solid var(--gold);
  transform: rotate(45deg); transition: transform 0.25s var(--ease);
  margin-left: 0.5rem; align-self: center;
}
.part[open] summary::after { transform: rotate(-135deg); }

.chapters {
  list-style: none; margin: 0;
  padding: 0.25rem 1.4rem 1.5rem;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 0.35rem 2rem;
  counter-reset: none;
}
.chapter {
  display: flex; gap: 1rem; align-items: baseline;
  padding: 0.9rem 0;
  border-top: 1px solid rgba(255,255,255,0.07);
}
.chapter__num {
  font-family: var(--serif); font-weight: 700;
  font-size: 1.9rem; line-height: 1;
  color: rgba(201,163,92,0.55);
  min-width: 1.8ch; text-align: right; flex: none;
}
.chapter h3 {
  font-family: var(--serif); font-size: 1.12rem; font-weight: 600;
  color: var(--cream); margin: 0 0 0.2rem; line-height: 1.25;
}
.chapter p { margin: 0; font-size: 0.92rem; color: var(--muted-on-navy); line-height: 1.5; }

.inside__afterword {
  margin: 1.75rem 0 0; text-align: center;
  color: var(--muted-on-navy); font-size: 0.95rem; letter-spacing: 0.01em;
}
.inside__afterword em { color: var(--gold); font-style: italic; }

/* ============================================================
   FOREWORD
   ============================================================ */
.foreword .eyebrow { color: var(--gold); }
.pullquote { margin: 0 0 2rem; max-width: 60ch; }
.pullquote--lead p {
  font-family: var(--serif);
  font-size: clamp(1.9rem, 4.5vw, 3.2rem);
  line-height: 1.18; color: var(--cream);
  margin: 0 0 2.5rem;
}
.pullquote p {
  font-family: var(--serif);
  font-size: clamp(1.15rem, 1.9vw, 1.45rem);
  font-style: italic; line-height: 1.5;
  color: var(--cream);
  border-left: 3px solid var(--gold);
  padding-left: 1.5rem; margin: 0;
}
.pullquote__cite {
  margin-top: 1.1rem; padding-left: 1.5rem;
  font-family: var(--sans); font-style: normal;
  text-transform: uppercase; letter-spacing: 0.1em;
  font-size: 0.78rem; font-weight: 600; color: var(--gold);
  line-height: 1.5;
}
.pullquote__cite span {
  display: block; text-transform: none; letter-spacing: 0.02em;
  font-weight: 400; color: var(--muted-on-navy);
}
.pullquote--secondary p { font-size: clamp(1rem, 1.5vw, 1.2rem); color: var(--muted-on-navy); }

/* ============================================================
   AUTHORS
   ============================================================ */
.authors__hed { font-size: clamp(1.9rem, 4vw, 2.8rem); margin-bottom: 3rem; }
.authors__grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
}
.author__photo {
  width: 150px; height: 150px; border-radius: 50%;
  margin-bottom: 1.4rem; position: relative;
  padding: 4px; background: var(--gold); /* thin gold ring */
}
.author__photo img {
  width: 100%; height: 100%; object-fit: cover;
  border-radius: 50%; background: #e7ddc9;
}
/* Monogram fallback when a headshot file is missing (see index.html note). */
.author__photo--fallback {
  display: grid; place-items: center;
  background: linear-gradient(160deg, var(--navy), var(--navy-deep));
}
.author__photo--fallback::after {
  content: attr(data-initials);
  font-family: var(--serif); font-weight: 700; font-size: 2.6rem;
  color: var(--gold);
}
.author__name { font-size: 1.65rem; margin-bottom: 0.4rem; }
.author__cred {
  text-transform: uppercase; letter-spacing: 0.08em;
  font-size: 0.76rem; font-weight: 600; color: var(--gold);
  margin: 0 0 1.1rem; line-height: 1.5;
}
.author__bio { color: var(--ink); margin: 0; max-width: 52ch; }

/* Editor credit - a lighter, supporting credit beneath the authors */
.editor {
  margin: 3.5rem auto 0; max-width: 64ch; text-align: center;
  padding-top: 2.5rem; border-top: 1px solid rgba(107, 100, 86, 0.28);
}
.editor .eyebrow { color: var(--gold); margin-bottom: 0.6rem; }
.editor__name { font-size: clamp(1.35rem, 2.4vw, 1.8rem); margin-bottom: 1rem; }
.editor__bio { margin: 0 auto; color: var(--muted); font-size: 0.98rem; }
.editor__bio a {
  color: #8a6d2f; text-decoration: underline; text-underline-offset: 2px;
  text-decoration-color: rgba(201, 163, 92, 0.6);
}
.editor__bio a:hover { text-decoration-color: var(--gold); }

/* ============================================================
   NOTIFY / EMAIL CAPTURE
   ============================================================ */
.notify { text-align: center; }
.notify .wrap--narrow { display: flex; flex-direction: column; align-items: center; }
.notify__hed { font-size: clamp(2rem, 5vw, 3.2rem); margin-bottom: 1.25rem; color: var(--cream); }
.notify__lede { color: var(--muted-on-navy); max-width: 46ch; margin: 0 0 2rem; }

.notify__form {
  display: flex; gap: 0.75rem; width: 100%; max-width: 520px;
  margin: 0 auto;
}
.notify__form input {
  flex: 1; min-width: 0;
  font-family: var(--sans); font-size: 1rem;
  padding: 0.95rem 1.15rem;
  border-radius: 999px; border: 1.5px solid rgba(201,163,92,0.5);
  background: rgba(255,255,255,0.96); color: var(--ink);
}
.notify__form input::placeholder { color: #8a8577; }
.notify__form input[aria-invalid="true"] { border-color: #e08a7a; background: #fff; }
.notify__form .btn { flex: none; }

.notify__msg {
  min-height: 1.4rem; margin: 1rem 0 0;
  font-size: 0.95rem; font-weight: 600; letter-spacing: 0.01em;
}
.notify__msg[data-type="error"] { color: #f0b8ac; }
.notify__msg[data-type="success"] { color: var(--gold-soft); }
.notify__micro {
  color: var(--muted-on-navy); font-size: 0.85rem;
  max-width: 44ch; margin: 1.25rem auto 0;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer { background: var(--navy-deep); color: var(--muted-on-navy); padding: 3.5rem 0 2rem; }
.footer__inner {
  display: flex; justify-content: space-between; align-items: flex-start;
  flex-wrap: wrap; gap: 2rem;
}
.footer__brand { display: flex; flex-direction: column; gap: 0.5rem; }
.footer__wordmark {
  font-family: var(--sans); font-weight: 700; color: var(--cream);
  text-transform: uppercase; letter-spacing: 0.18em; font-size: 0.95rem;
}
.footer__brand .pill { margin: 0.15rem 0; }
.footer__authors { margin: 0; font-family: var(--serif); font-style: italic; color: var(--muted-on-navy); }

.footer__contact { display: flex; flex-direction: column; gap: 1rem; align-items: flex-start; }
.footer__social { display: flex; gap: 1.25rem; }
.footer__social a {
  display: inline-flex; align-items: center; gap: 0.45rem;
  color: var(--muted-on-navy); text-decoration: none; font-size: 0.9rem;
  transition: color 0.2s var(--ease);
}
.footer__social a:hover { color: var(--gold); }
.footer__reach { margin: 0; color: var(--muted-on-navy); font-size: 0.9rem; }

.footer__legal { margin-top: 2.5rem; padding-top: 1.5rem; border-top: 1px solid rgba(255,255,255,0.08); }
.footer__legal p { margin: 0; font-size: 0.82rem; color: var(--muted-on-navy); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 860px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: flex; }
  .nav[data-menu-open="true"] .nav__mobile { display: flex; }
  .nav[data-menu-open="true"] { background: var(--navy); }

  .hero__inner { grid-template-columns: 1fr; text-align: left; }
  .hero__art { order: -1; justify-self: start; margin-bottom: 1.5rem; }
  .hero__art img { transform: none; width: min(260px, 60vw); }
  .hero__bg { background:
      linear-gradient(180deg, rgba(27,46,72,0.55) 0%, var(--navy) 78%),
      url("assets/hero-hands.jpg") center / cover no-repeat; }

  .through-line { grid-template-columns: 1fr; gap: 0; }
  .through-line li { padding: 1rem 0; }
  .through-line li + li { border-top-color: rgba(107,100,86,0.3); }

  .chapters { grid-template-columns: 1fr; padding-bottom: 1rem; }

  .authors__grid { grid-template-columns: 1fr; }
}

@media (max-width: 560px) {
  .part summary { padding: 1rem; }
  .part__title { flex-basis: 100%; margin-right: 0; }
  .notify__form { flex-direction: column; }
  .notify__form .btn { justify-content: center; }
  .footer__inner { flex-direction: column; }
}

/* ---------- Motion preferences ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
  .hero__art img { transform: none; }
}