/* ============================================================
   Palette derived from the Nalanda University logo:
   navy ground, crimson mark, white linework.

   Key constraint the logo itself teaches us: crimson is a DARK
   colour (1.97:1 on navy — invisible). The logo never draws a
   thin red line on navy; it uses red as a solid MASS and white
   as the LINE. So:
     --crimson         solid fills, and accents on light grounds
     --crimson-bright  thin accents on navy only (4.78:1)
     --sand / #F3EEDD  linework + text on navy
   ============================================================ */
:root {
  --ink: #16283F;            /* logo navy */
  --ink-soft: #4A5170;
  --paper: #F3EEDD;
  --card: #FFFEFA;

  --crimson: #A31E28;        /* logo crimson — 6.52:1 on paper */
  --crimson-deep: #7E161E;   /* hover / pressed */
  --crimson-bright: #E86A72; /* on-navy accents — 4.78:1 */
  --crimson-wash: #F6E4E5;   /* tinted surfaces (tags, checked states) */

  --sand: #D8CBA0;           /* warm light linework on navy */
  --sand-soft: #C9BE9C;
  --oxblood: #7A2E2E;

  --line: rgba(22, 40, 63, 0.14);
  --radius: 4px;

  /* Error must NOT rely on the brand red alone now that red IS the
     brand. Distinct warmer/brighter red, always paired with a glyph. */
  --danger: #C0392B;
  --success: #3E6B4A;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur-fast: 150ms;
  --dur: 220ms;
  --dur-slow: 420ms;
  --shadow-sm: 0 1px 2px rgba(22, 40, 63, 0.06), 0 1px 1px rgba(22, 40, 63, 0.04);
  --shadow-md: 0 6px 16px rgba(22, 40, 63, 0.10), 0 2px 6px rgba(22, 40, 63, 0.06);
  --shadow-lg: 0 14px 34px rgba(22, 40, 63, 0.16), 0 4px 10px rgba(22, 40, 63, 0.08);
  --shadow-crimson: 0 6px 18px rgba(163, 30, 40, 0.26);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: 'Inter', sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Motion base ---------- */
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

h1, h2, h3 {
  font-family: 'Fraunces', serif;
  margin: 0;
  color: var(--ink);
}

.mono {
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: .04em;
}

a { color: inherit; text-decoration: none; }
a:hover { opacity: 0.8; }

button {
  font-family: 'Inter', sans-serif;
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--crimson);
  outline-offset: 2px;
}
/* Crimson is only 1.97:1 on navy, so dark surfaces take the bright
   variant (4.78:1) — otherwise keyboard focus is invisible there. */
nav.global-nav :focus-visible,
header.hero :focus-visible,
.success-panel :focus-visible {
  outline-color: var(--crimson-bright);
}

/* ---------- Global Navigation ---------- */
nav.global-nav {
  background: rgba(22, 40, 63, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  color: var(--sand-soft);
  padding: 12px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  box-shadow: none;
  transition: box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
}
nav.global-nav.is-elevated {
  box-shadow: var(--shadow-md);
}
nav.global-nav .nav-brand {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--sand);
  display: flex;
  align-items: center;
  gap: 8px;
  min-height: 44px; /* touch target */
}
nav.global-nav .nav-links {
  position: relative;
  display: flex;
  gap: 16px;
}
nav.global-nav .nav-links a {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  padding: 6px 2px;
  border-bottom: 2px solid transparent;
  transition: color var(--dur-fast) var(--ease);
}
nav.global-nav .nav-links a:hover {
  color: #F3EEDD;
}
nav.global-nav .nav-links a.active {
  color: #F3EEDD;
}
.nav-indicator {
  position: absolute;
  bottom: -1px;
  height: 2px;
  background: var(--crimson-bright);
  border-radius: 2px;
  opacity: 0;
  transform: translateX(0);
  transition: left var(--dur) var(--ease), width var(--dur) var(--ease), opacity var(--dur-fast) var(--ease);
  pointer-events: none;
}
.nav-indicator.is-visible { opacity: 1; }

.nav-toggle {
  display: none;
  width: 44px;   /* 44px minimum touch target */
  height: 44px;
  border: none;
  background: transparent;
  padding: 0;
  position: relative;
  flex-shrink: 0;
}
.nav-toggle span {
  position: absolute;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--sand);
  border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur-fast) var(--ease), top var(--dur) var(--ease);
}
.nav-toggle span:nth-child(1) { top: 16px; }
.nav-toggle span:nth-child(2) { top: 21px; }
.nav-toggle span:nth-child(3) { top: 26px; }
.nav-toggle.is-open span:nth-child(1) { top: 21px; transform: rotate(45deg); }
.nav-toggle.is-open span:nth-child(2) { opacity: 0; }
.nav-toggle.is-open span:nth-child(3) { top: 21px; transform: rotate(-45deg); }

.nav-backdrop {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(20, 33, 61, 0.5);
  z-index: 98;
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.nav-backdrop.is-open { display: block; opacity: 1; }

/* Hamburger takes over at 900px so tablets in portrait (768px) get the
   slide-out menu rather than a cramped six-link bar. */
@media (max-width: 900px) {
  .nav-toggle { display: block; }
  nav.global-nav .nav-links {
    position: fixed;
    top: 0;
    right: 0;
    height: 100dvh; /* dvh avoids the mobile browser URL-bar gap */
    width: min(78vw, 320px);
    background: var(--ink);
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 84px 26px 26px;
    z-index: 99;
    transform: translateX(100%);
    transition: transform var(--dur-slow) var(--ease);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
  }
  nav.global-nav .nav-links.is-open { transform: translateX(0); }
  nav.global-nav .nav-links a {
    display: flex;
    align-items: center;
    min-height: 48px; /* comfortable touch target */
    padding: 6px 0;
    font-size: 16px;
    width: 100%;
  }
  .nav-indicator { display: none; }
}

/* ---------- Headers ---------- */
@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: translateY(0); }
}

header.hero {
  background: var(--ink);
  color: #F3EEDD;
  position: relative;
  overflow: hidden;
}
header.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(216, 203, 160, 0.5) 1px, transparent 1px);
  background-size: 22px 22px;
  opacity: 0.04;
  pointer-events: none;
}
.hero-canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
}
.hero-inner {
  max-width: 920px;
  margin: 0 auto;
  padding: 48px 22px 54px;
  position: relative;
  z-index: 2;
}
.hero-inner > * {
  opacity: 0;
  animation: fadeSlideUp var(--dur-slow) var(--ease) forwards;
}
.hero-inner > *:nth-child(1) { animation-delay: 0.02s; }
.hero-inner > *:nth-child(2) { animation-delay: 0.10s; }
.hero-inner > *:nth-child(3) { animation-delay: 0.18s; }
.hero-inner > *:nth-child(4) { animation-delay: 0.26s; }
.hero-inner > *:nth-child(5) { animation-delay: 0.34s; }
.brand-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
}
.brand-row .mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}
.brand-row .brandtext {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12.5px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--sand);
}
.hero h1 {
  font-size: clamp(28px, 6vw, 46px);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.01em;
  max-width: 14ch;
  color: var(--crimson-bright);
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.8), 0 2px 8px rgba(0, 0, 0, 0.6);
}
.hero .tagline {
  margin-top: 16px;
  font-size: 16.5px;
  color: var(--sand-soft);
  max-width: 48ch;
}
.hero .stat-row {
  margin-top: 32px;
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  align-items: center;
}
.stat {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  color: var(--sand);
  display: flex;
  align-items: center;
  gap: 8px;
}
.stat b {
  font-family: 'Fraunces', serif;
  font-size: 24px;
  color: #F3EEDD;
  font-weight: 600;
}
#ringWrap { opacity: .9; }
.hero-ring-decorative {
  position: absolute;
  right: -50px;
  top: -50px;
  opacity: 0.1;
  pointer-events: none;
  transform: scale(3);
}

header.page-header {
  padding: 40px 22px 20px;
  max-width: 920px;
  margin: 0 auto;
  position: relative;
}
header.page-header::before {
  content: '';
  position: absolute;
  top: 0; right: 0; bottom: 0;
  width: 45%;
  background-image: repeating-linear-gradient(90deg, rgba(184, 134, 43, 0.5) 0 1px, transparent 1px 14px),
                     repeating-linear-gradient(0deg, rgba(184, 134, 43, 0.5) 0 1px, transparent 1px 14px);
  opacity: 0.05;
  pointer-events: none;
  z-index: 0;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 40%);
          mask-image: linear-gradient(90deg, transparent, #000 40%);
}
header.page-header > * { position: relative; z-index: 1; }
header.page-header h1 {
  font-size: 32px;
  margin-bottom: 8px;
  opacity: 0;
  animation: fadeSlideUp var(--dur-slow) var(--ease) forwards;
}
header.page-header .eyebrow {
  opacity: 0;
  animation: fadeSlideUp var(--dur-slow) var(--ease) forwards;
}
header.page-header .sub {
  color: var(--ink-soft);
  font-size: 16px;
  opacity: 0;
  animation: fadeSlideUp var(--dur-slow) var(--ease) forwards;
  animation-delay: 0.08s;
}

main {
  max-width: 920px;
  margin: 0 auto;
  padding: 20px 22px 80px;
}

/* ---------- Scroll reveal ---------- */
/* Uses `animation`, not `transition`, so it never collides with a
   component's own hover `transition` shorthand (e.g. .mcard) — those
   are independent CSS property groups. Once the entrance animation
   finishes, reveal.js swaps `.is-visible` for `.revealed`, which drops
   the animation entirely — a `forwards`-filled animation keeps "owning"
   `transform` indefinitely otherwise, silently blocking any later
   `:hover` transform (e.g. the card lift) from ever applying. */
[data-reveal] {
  opacity: 0;
  transform: translateY(14px);
}
[data-reveal].is-visible {
  animation: fadeSlideUp var(--dur-slow) var(--ease) forwards;
  animation-delay: calc(var(--i, 0) * 60ms);
}
[data-reveal].revealed {
  opacity: 1;
  transform: none;
  animation: none;
}

/* ---------- Typography & Text Content ---------- */
article.content-block {
  margin-bottom: 40px;
  max-width: 65ch;
  background: var(--card);
  padding: 32px 36px;
  border-radius: 12px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur-slow) var(--ease), box-shadow var(--dur-slow) var(--ease);
}
article.content-block:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}
article.content-block h2 {
  font-size: 22px;
  margin-top: 32px;
  margin-bottom: 12px;
}
article.content-block p {
  margin-bottom: 16px;
  font-size: 15px;
  color: var(--ink);
}
article.content-block ul {
  padding-left: 20px;
  margin-bottom: 16px;
}
article.content-block li {
  margin-bottom: 8px;
  font-size: 15px;
}
article.content-block a,
.footnote a {
  background-image: linear-gradient(var(--crimson), var(--crimson));
  background-position: 0 100%;
  background-repeat: no-repeat;
  background-size: 0% 1.5px;
  transition: background-size var(--dur) var(--ease);
  padding-bottom: 1px;
}
article.content-block a:hover,
.footnote a:hover {
  background-size: 100% 1.5px;
  opacity: 1;
}

/* ---------- Long-form explainer components ---------- */
.longform { max-width: 68ch; }
/* Content blocks lift on hover, which reads well for short cards but is
   distracting under a block of text you are actually reading. */
.content-block.longform:hover { transform: none; box-shadow: var(--shadow-sm); }
.longform h2 {
  font-size: 26px;
  margin-top: 8px;
  margin-bottom: 6px;
  scroll-margin-top: 84px; /* clear the sticky nav when jumped to */
}
.longform h3 {
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: .01em;
  margin: 30px 0 8px;
  color: var(--ink);
}
.longform p { margin-bottom: 15px; font-size: 15.5px; line-height: 1.68; }
.longform ul, .longform ol { padding-left: 20px; margin-bottom: 16px; }
.longform li { margin-bottom: 9px; font-size: 15.5px; line-height: 1.62; }

/* the running head above each phenomenon */
.lf-head { border-top: 2px solid var(--crimson); padding-top: 18px; margin-top: 8px; }
.lf-kicker {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px; letter-spacing: .12em; text-transform: uppercase;
  color: var(--crimson); display: block; margin-bottom: 8px;
}
.lf-sub {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px; color: var(--ink-soft); margin: 6px 0 0; letter-spacing: .03em;
}

/* display maths / algorithm blocks */
.formula {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 13.5px; line-height: 2;
  background: var(--card); border: 1px solid var(--line);
  border-left: 2px solid var(--crimson); border-radius: var(--radius);
  padding: 14px 16px; margin: 18px 0;
  overflow-x: auto; white-space: pre;
}

/* term-by-term breakdown of an equation */
.terms { margin: 16px 0 20px; display: flex; flex-direction: column; gap: 10px; }
.term { display: grid; grid-template-columns: 7.5rem minmax(0, 1fr); gap: 14px; align-items: baseline; }
.term dt {
  font-family: 'IBM Plex Mono', monospace; font-size: 13px;
  color: var(--crimson); font-weight: 500;
}
.term dd { margin: 0; font-size: 14.5px; color: var(--ink); line-height: 1.55; }
@media (max-width: 560px) { .term { grid-template-columns: 1fr; gap: 2px; } }

/* the honest-limits callout */
.caveat {
  border: 1px solid var(--line);
  border-left: 2px solid var(--ink-soft);
  background: rgba(22, 40, 63, .035);
  border-radius: var(--radius);
  padding: 14px 16px; margin: 22px 0;
}
.caveat b {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px; letter-spacing: .1em; text-transform: uppercase;
  color: var(--ink-soft); margin-bottom: 6px;
}
.caveat p { margin: 0; font-size: 14.5px; color: var(--ink); }

/* jump-to index at the top of the explainer */
.lf-index { margin: 10px 0 0; padding: 0; list-style: none; display: flex; flex-direction: column; gap: 2px; }
.lf-index a {
  display: grid; grid-template-columns: 2.2rem minmax(0, 1fr);
  gap: 12px; padding: 9px 0; border-bottom: 1px solid var(--line);
  font-size: 15px; align-items: baseline;
}
.lf-index a span:first-child {
  font-family: 'IBM Plex Mono', monospace; font-size: 12px; color: var(--crimson);
}
.lf-index a:hover { opacity: 1; color: var(--crimson); }

/* reference list */
.refs { list-style: none; padding: 0; margin: 12px 0 0; }
.refs li {
  font-size: 13.5px; color: var(--ink-soft); line-height: 1.6;
  padding: 9px 0; border-bottom: 1px solid var(--line); margin: 0;
}
.refs em { color: var(--ink); font-style: normal; font-weight: 500; }

/* ---------- Contact details ---------- */
.contact-list {
  margin: 20px 0 24px;
  padding: 18px 20px;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 3px solid var(--crimson);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.contact-row {
  display: grid;
  grid-template-columns: 108px 1fr;
  gap: 12px;
  align-items: baseline;
}
.contact-list dt {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11px;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.contact-list dd {
  margin: 0;
  font-size: 15px;
  color: var(--ink);
}
.contact-list dd a {
  color: var(--crimson);
  font-weight: 500;
  word-break: break-word;
}
.contact-list dd a:hover { opacity: 1; text-decoration: underline; }
@media (max-width: 560px) {
  .contact-row { grid-template-columns: 1fr; gap: 2px; }
}

/* ---------- Form Components ---------- */
.section { margin-bottom: 38px; }
.eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: var(--oxblood);
  margin-bottom: 6px;
  display: block;
}
.section h2 { font-size: 21px; font-weight: 600; margin-bottom: 4px; }
.section .sub { color: var(--ink-soft); font-size: 13.5px; margin-bottom: 18px; }

.field { margin-bottom: 16px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 6px; }
.field .hint { font-weight: 400; color: var(--ink-soft); font-size: 12px; }
.field input[type=text], .field input[type=email], .field input[type=tel], .field input[type=url], .field select, .field textarea {
  width: 100%;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  font-family: 'Inter', sans-serif;
  font-size: 14.5px;
  color: var(--ink);
  transition: border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.field input[type=text]:focus, .field input[type=email]:focus, .field input[type=tel]:focus,
.field input[type=url]:focus, .field select:focus, .field textarea:focus {
  border-color: var(--crimson);
  box-shadow: 0 0 0 3px rgba(163, 30, 40, 0.15);
}
.field textarea { resize: vertical; min-height: 70px; }
.row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
@media(max-width: 640px) { .row2 { grid-template-columns: 1fr; } }

/* iOS Safari zooms the whole page when a focused input is under 16px.
   Bumping to 16px on touch-width viewports prevents that jump. */
@media (max-width: 900px) {
  .field input[type=text], .field input[type=email], .field input[type=tel],
  .field input[type=url], .field select, .field textarea {
    font-size: 16px;
    min-height: 46px;
  }
  .field textarea { min-height: 90px; }
}

.check-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
@media(max-width: 640px) { .check-grid { grid-template-columns: 1fr; } }
.check-item {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  padding: 9px 10px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--card);
  font-size: 13.5px;
  transition: border-color var(--dur-fast) var(--ease), background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
.check-item:hover { border-color: var(--crimson); transform: translateY(-1px); }
.check-item input { margin-top: 2px; accent-color: var(--crimson); flex-shrink: 0; width: 17px; height: 17px; }
.check-item.checked { border-color: var(--crimson); background: var(--crimson-wash); }
@media (max-width: 900px) {
  .check-item { min-height: 48px; align-items: center; padding: 11px 12px; }
  .check-item input { width: 20px; height: 20px; margin-top: 0; }
  .radio-pill { min-height: 44px; display: inline-flex; align-items: center; }
}
.group-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--ink-soft);
  margin: 14px 0 7px;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.group-label:first-child { margin-top: 0; }

.radio-row { display: flex; gap: 8px; flex-wrap: wrap; }
.radio-pill {
  border: 1px solid var(--line);
  background: var(--card);
  padding: 8px 14px;
  border-radius: 20px;
  font-size: 13px;
  cursor: pointer;
  user-select: none;
  transition: background var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
  display: inline-block;
  position: relative;
}
.radio-pill:hover { transform: translateY(-1px); border-color: var(--crimson); }
.radio-pill.checked { background: var(--ink); color: #F3EEDD; border-color: var(--ink); }
.radio-pill input {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.radio-pill input:focus-visible ~ * ,
.radio-pill:has(input:focus-visible) {
  outline: 2px solid var(--crimson);
  outline-offset: 2px;
}

#otherBranchWrap { display: none; margin-top: 8px; }
#otherBranchWrap input[type=text] { margin-bottom: 8px; }

.cat-badge {
  display: none;
  margin-top: 8px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 11.5px;
  padding: 5px 10px;
  border-radius: 12px;
  width: fit-content;
}
.cat-badge.show { display: inline-block; }
.cat-badge.tech { background: #DDE6F0; color: #1F3A63; }
.cat-badge.nontech { background: #EFD9D9; color: var(--oxblood); }

/* ---------- Buttons ---------- */
.submit-row { margin-top: 30px; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.btn-primary {
  background: var(--ink);
  color: #F3EEDD;
  border: none;
  padding: 13px 26px;
  min-height: 44px; /* touch target */
  border-radius: 24px;
  font-size: 14.5px;
  font-weight: 600;
  transition: background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.btn-primary:hover { background: var(--crimson); color: #F3EEDD; opacity: 1; text-decoration: none; transform: translateY(-2px) scale(1.02); box-shadow: var(--shadow-crimson); }
.btn-primary:active { transform: translateY(0) scale(0.98); box-shadow: var(--shadow-sm); }
.btn-primary:disabled { opacity: .5; cursor: default; transform: none; box-shadow: none; }
.form-msg { font-size: 13px; font-weight: 500; color: var(--danger); }
.form-msg.ok { color: var(--success); }
.form-msg.pending { color: var(--ink-soft); font-weight: 400; }

.btn-outline {
  border: 1px solid var(--sand-soft);
  color: #F3EEDD;
  padding: 11px 22px;
  min-height: 44px; /* touch target */
  border-radius: 24px;
  font-weight: 600;
  font-size: 13.5px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px; /* inline-flex drops whitespace text nodes; restore the space */
  transition: background var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), box-shadow var(--dur-fast) var(--ease);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.08);
  color: #F3EEDD;
  transform: translateY(-2px) scale(1.02);
  border-color: var(--crimson-bright);
  box-shadow: 0 4px 12px rgba(232, 106, 114, 0.15);
}
.btn-outline:active { transform: translateY(0) scale(0.98); box-shadow: none; }

/* .btn-outline is built for the navy hero; on paper its cream text
   disappears. This variant inverts it for light grounds. */
.btn-outline-onlight {
  color: var(--ink);
  border-color: var(--line);
  background: var(--card);
}
.btn-outline-onlight:hover {
  color: var(--crimson);
  border-color: var(--crimson);
  background: var(--card);
}

.success-panel {
  background: var(--ink);
  color: #F3EEDD;
  border-radius: 8px;
  padding: 40px 26px;
  text-align: center;
  opacity: 0;
  transform: scale(0.97);
  transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease);
}
.success-panel.is-visible { opacity: 1; transform: scale(1); }
.success-panel h2 { color: #F3EEDD; font-size: 22px; margin-bottom: 8px; }
.success-panel p { color: var(--sand-soft); font-size: 14px; max-width: 40ch; margin: 0 auto 24px; }
.success-panel a.btn-primary { background: var(--crimson); color: #fff; }
.success-panel a.btn-primary:hover { background: var(--crimson); color: #fff;}

/* ---------- Directory ---------- */
.dir-summary { display: flex; gap: 26px; flex-wrap: wrap; margin-bottom: 26px; padding-bottom: 22px; border-bottom: 1px solid var(--line); }
.dir-stat b { font-family: 'Fraunces', serif; font-size: 26px; display: block; }
.dir-stat span { font-family: 'IBM Plex Mono', monospace; font-size: 11px; color: var(--ink-soft); text-transform: uppercase; letter-spacing: .06em; }

.refresh-icon { display: inline-block; transition: transform var(--dur-fast) var(--ease); }
@keyframes spin { to { transform: rotate(360deg); } }
.refresh-icon.is-spinning { animation: spin 0.6s linear; }

.filter-row { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 22px; }
.filter-group { margin-bottom: 14px; }
.filter-group-label { font-family: 'IBM Plex Mono', monospace; font-size: 11px; text-transform: uppercase; letter-spacing: .06em; color: var(--ink-soft); margin-bottom: 7px; }

.chip {
  border: 1px solid var(--line);
  background: var(--card);
  padding: 9px 14px;
  min-height: 40px;
  border-radius: 20px;
  font-size: 12.5px;
  font-family: 'IBM Plex Mono', monospace;
  transition: background var(--dur-fast) var(--ease), color var(--dur-fast) var(--ease), border-color var(--dur-fast) var(--ease), transform var(--dur-fast) var(--ease);
}
@media (max-width: 900px) {
  .chip { min-height: 44px; padding: 11px 16px; }
  .filter-row { gap: 10px; }
  .filter-group > div { display: flex; flex-wrap: wrap; gap: 8px; }
}
.chip.active { background: var(--ink); color: #F3EEDD; border-color: var(--ink); }
.chip:hover:not(.active) { background: var(--crimson-wash); transform: translateY(-1px); }

.member-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  transition: opacity var(--dur) var(--ease);
}
.member-grid.is-swapping { opacity: 0; }
@media(max-width: 700px) { .member-grid { grid-template-columns: 1fr; } }
.mcard {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 18px 19px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.mcard:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--crimson-bright); }
.mcard .mname { font-family: 'Fraunces', serif; font-size: 17px; font-weight: 600; margin-bottom: 2px; }
.mcard .mbranch { font-size: 12.5px; color: var(--oxblood); font-family: 'IBM Plex Mono', monospace; margin-bottom: 10px; }
.tag-row { display: flex; flex-wrap: wrap; gap: 5px; margin-bottom: 8px; }
.tag { font-size: 11px; font-family: 'IBM Plex Mono', monospace; background: var(--crimson-wash); color: var(--crimson-deep); padding: 3px 8px; border-radius: 10px; }
.tag.alt { background: #EFD9D9; color: var(--oxblood); }
.tag.cat-tech { background: #DDE6F0; color: #1F3A63; }
.tag.cat-nontech { background: #EFD9D9; color: var(--oxblood); }
.mcard a.mlink { font-size: 12px; color: var(--ink-soft); text-decoration: underline; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--ink-soft); }
.empty-state b { display: block; font-family: 'Fraunces', serif; font-size: 19px; color: var(--ink); margin-bottom: 6px; }

.footnote { margin-top: 50px; padding-top: 18px; border-top: 1px solid var(--line); font-size: 12px; color: var(--ink-soft); }

/* ---------- Ring motif ---------- */
@keyframes dotPop {
  from { opacity: 0; transform: scale(0.3); }
  to { opacity: 1; transform: scale(1); }
}
.ring-dot { transform-origin: center; transform-box: fill-box; opacity: 0; animation: dotPop var(--dur) var(--ease) forwards; }
.ring-link { opacity: 0; transition: opacity var(--dur-slow) var(--ease); }
.ring-link.is-visible { opacity: 1; }
#memberCount { font-variant-numeric: tabular-nums; }

/* ---------- Site footer ---------- */
footer.site-footer {
  border-top: 1px solid var(--line);
  margin-top: 20px;
  padding: 34px 22px 30px;
}
.footer-inner {
  max-width: 920px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--ink-soft);
}
.footer-brand .mark { width: 18px; height: 18px; flex-shrink: 0; opacity: 0.85; }
.footer-links { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-links a {
  font-size: 12.5px;
  color: var(--ink-soft);
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px; /* touch target */
}
.footer-links a::after {
  content: '';
  position: absolute;
  left: 0; right: 0; bottom: -3px;
  height: 1px;
  background: var(--crimson);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.footer-links a:hover { opacity: 1; color: var(--ink); }
.footer-links a:hover::after { transform: scaleX(1); }
.footer-copy { font-size: 11px; color: var(--ink-soft); max-width: 920px; margin: 18px auto 0; opacity: 0.75; }

/* ---------- Utilities ---------- */
.mt-4 { margin-top: 1rem; }
.mt-8 { margin-top: 2rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-8 { margin-bottom: 2rem; }