/* Sam Marks — quiet-authority v1 */
:root {
  --ivory: #FAF8F3;
  --ink: #1A1A1A;
  --forest: #24503A;
  --muted: #6B6B63;
  --rule: #E4E0D6;
  --maxw: 780px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--ivory);
  color: var(--ink);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  font-family: "Fraunces", "Cormorant Garamond", Georgia, "Times New Roman", serif;
  font-weight: 500;
  color: var(--ink);
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h1 { font-size: 2.9rem; margin: 0 0 0.5rem; }
h2 { font-size: 1.7rem; margin: 3rem 0 1rem; }
h3 { font-size: 1.25rem; margin: 2rem 0 0.4rem; }

p { margin: 0 0 1.2rem; }

a {
  color: var(--forest);
  text-decoration: none;
  border-bottom: 1px solid rgba(36, 80, 58, 0.28);
  transition: border-color 0.2s ease;
}
a:hover { border-bottom-color: var(--forest); }

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.site-header {
  border-bottom: 1px solid var(--rule);
  background: var(--ivory);
}
.nav {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 1.4rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
.brand {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.1rem;
  letter-spacing: 0.02em;
  color: var(--ink);
  border-bottom: none;
}
.brand:hover { border-bottom: none; }

.nav-links {
  display: flex;
  gap: 1.6rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  border-bottom: none;
  padding-bottom: 2px;
}
.nav-links a:hover,
.nav-links a.active {
  color: var(--forest);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.4rem;
  width: 40px;
  height: 40px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--ink);
  margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

main {
  padding: 3.5rem 0 4rem;
}

.tagline {
  font-size: 1.15rem;
  color: var(--ink);
  margin: 0 0 0.4rem;
}
.subtle {
  color: var(--muted);
  font-size: 1rem;
}
.lead {
  font-size: 1.05rem;
}

.rule {
  border: none;
  border-top: 1px solid var(--rule);
  margin: 3rem 0;
}
.accent-rule {
  width: 48px;
  border: none;
  border-top: 2px solid var(--forest);
  margin: 1.6rem 0 2rem;
  text-align: left;
}

.portrait {
  border: 1px solid var(--rule);
  background: #F4F0E6;
  border-radius: 4px;
  aspect-ratio: 4 / 5;
  max-width: 260px;
  margin: 2rem 0;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.portrait img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 4px;
  display: block;
}

.ventures {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
}
.ventures li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--rule);
}
.ventures .name { color: var(--ink); font-weight: 500; }
.ventures .meta { color: var(--muted); font-size: 0.92rem; }

.bullets {
  padding-left: 1.1rem;
  margin: 1rem 0;
}
.bullets li { margin: 0.4rem 0; }

.featured {
  color: var(--muted);
  font-size: 0.9rem;
  letter-spacing: 0.04em;
  filter: grayscale(100%);
}
.featured a { color: var(--muted); border-bottom-color: rgba(107,107,99,0.4); }
.featured a:hover { color: var(--forest); }

.btn {
  display: inline-block;
  margin-top: 0.6rem;
  padding: 0.6rem 1.3rem;
  background: var(--forest);
  color: var(--ivory);
  font-size: 0.78rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border: 1px solid var(--forest);
  border-radius: 2px;
}
.btn:hover { background: #1d4230; border-bottom-color: #1d4230; }

.pillar { margin: 2rem 0; }
.pillar h3 { margin-bottom: 0.3rem; }

.listen {
  list-style: none;
  padding: 0;
  margin: 1.5rem 0;
}
.listen li { padding: 0.5rem 0; border-bottom: 1px solid var(--rule); }

.site-footer {
  border-top: 1px solid var(--rule);
  margin-top: 3rem;
  padding: 2.5rem 0;
}
.footer-inner {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  align-items: center;
  justify-content: space-between;
  font-size: 0.82rem;
  color: var(--muted);
}
.footer-inner a {
  color: var(--muted);
  border-bottom: none;
  margin-right: 1.2rem;
  font-size: 0.82rem;
}
.footer-inner a:last-child { margin-right: 0; }
.footer-inner a:hover { color: var(--forest); }
.footer-links { display: flex; flex-wrap: wrap; gap: 0.2rem 0; }

@media (max-width: 640px) {
  h1 { font-size: 2.3rem; }
  h2 { font-size: 1.45rem; }
  body { font-size: 16px; }

  .nav-toggle { display: block; }
  .nav-links {
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    gap: 0;
    background: var(--ivory);
    border-bottom: 1px solid var(--rule);
    padding: 0.5rem 1.5rem 1rem;
    display: none;
    z-index: 20;
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 0.55rem 0; }
  .nav { position: relative; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
}

/* Mastermind application form */
.apply-form {
  margin: 1.5rem 0 0;
  max-width: 560px;
}
.apply-form .field {
  margin: 0 0 1.3rem;
}
.apply-form label {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 0.45rem;
}
.apply-form .req { color: var(--forest); }
.apply-form input,
.apply-form textarea {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  color: var(--ink);
  background: #FFFDF9;
  border: 1px solid var(--rule);
  border-radius: 3px;
  padding: 0.7rem 0.85rem;
  line-height: 1.5;
  transition: border-color 0.2s ease;
}
.apply-form textarea { resize: vertical; }
.apply-form input:focus,
.apply-form textarea:focus {
  outline: none;
  border-color: var(--forest);
}
.apply-form .btn {
  border: 1px solid var(--forest);
  cursor: pointer;
}
.apply-form .btn:disabled { opacity: 0.6; cursor: default; }
.form-error {
  color: #8a2f24;
  font-size: 0.9rem;
  margin: 0 0 1rem;
}
.apply-thanks {
  margin: 2rem 0;
  padding: 1.6rem 1.5rem;
  background: #F4F0E6;
  border: 1px solid var(--rule);
  border-left: 3px solid var(--forest);
  border-radius: 3px;
}
.apply-thanks p { margin: 0; color: var(--ink); }


/* Hero thumbnail + name (2026-08-31) */
.hero-head { display: flex; align-items: center; gap: 1.1rem; margin: 0 0 0.6rem; }
.avatar { width: 88px; height: 88px; border-radius: 50%; object-fit: cover; border: 1px solid var(--rule); flex: 0 0 auto; }
.hero-name h1 { margin: 0; }
.hero-name .tagline { margin: 0.2rem 0 0; }
@media (max-width: 640px) { .avatar { width: 66px; height: 66px; } .hero-head { gap: 0.9rem; } }

/* Automatic dark mode — follows the device/browser night setting (2026-09-19) */
:root { color-scheme: light dark; }

@media (prefers-color-scheme: dark) {
  :root {
    --ivory: #171814;   /* warm near-black background */
    --ink:   #ECE7DB;   /* warm off-white text (not pure white, less glare) */
    --forest: #8FC3A6;  /* lightened sage accent for contrast on dark */
    --muted: #9C978A;   /* lighter muted grey */
    --rule:  #34332C;   /* subtle dark divider */
  }
  body { background: var(--ivory); color: var(--ink); }

  /* hardcoded light surfaces -> dark equivalents */
  .portrait,
  .apply-thanks { background: #20211B; }
  .apply-form input,
  .apply-form textarea { background: #1E1F19; color: var(--ink); }
  .btn { color: #16130E; }            /* dark text on the light-sage button */
  .btn:hover { background: #7FB295; border-bottom-color: #7FB295; }
  .form-error { color: #E29B90; }

  /* link underlines readable on dark */
  a { border-bottom-color: rgba(143, 195, 166, 0.35); }
  .featured a { border-bottom-color: rgba(156, 151, 138, 0.4); }
}