/* ============================================================
   Bridgeworks Foundation — design tokens & base styles
   Palette is deliberately limited to the five brand values.
   ============================================================ */

:root {
  --navy: #081A31;
  --gold: #C1892D;
  --cream: #F6F1EB;
  --ink-black: #000000;
  --paper-white: #FFFFFF;

  /* alpha variants of the five values above — not new colors */
  --navy-08: rgba(8, 26, 49, 0.08);
  --navy-15: rgba(8, 26, 49, 0.15);
  --navy-40: rgba(8, 26, 49, 0.4);
  --navy-70: rgba(8, 26, 49, 0.7);
  --gold-15: rgba(193, 137, 45, 0.15);
  --gold-30: rgba(193, 137, 45, 0.3);
  --cream-60: rgba(246, 241, 235, 0.6);

  --font-display: "Archivo", ui-sans-serif, system-ui, sans-serif;
  --font-body: "IBM Plex Sans", ui-sans-serif, system-ui, sans-serif;

  --container: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);
  --radius: 14px;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --dur-s: 0.3s;
  --dur-m: 0.6s;
  --dur-l: 0.9s;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  background: var(--paper-white);
  color: var(--navy);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img, svg { max-width: 100%; display: block; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.12;
  margin: 0 0 0.6em;
  color: var(--navy);
}
h1 { font-weight: 900; font-size: clamp(2.4rem, 5vw, 4rem); letter-spacing: 0.01em; }
h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }

p { margin: 0 0 1em; max-width: 65ch; }
a { color: inherit; }

.eyebrow {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--gold);
  margin: 0 0 0.9rem;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section { padding: clamp(3.5rem, 8vw, 7rem) 0; }
.section--cream { background: var(--cream); }
.section--navy { background: var(--navy); color: var(--paper-white); }
.section--navy h1, .section--navy h2, .section--navy h3 { color: var(--paper-white); }
.section--navy p { color: var(--cream-60); }

/* low-opacity background patterns — kept faint so body text stays readable */
.section--cream, .section--navy {
  position: relative;
  overflow: hidden;
}
.section--cream::before, .section--navy::before {
  content: "";
  position: absolute;
  inset: 0;
  background-repeat: repeat;
  background-size: 460px auto;
  pointer-events: none;
  z-index: 0;
}
.section--cream::before {
  background-image: url("../img/patterns/pattern-topographic.png");
  opacity: 0.55;
}
.section--navy::before {
  background-image: url("../img/patterns/pattern-bridge-arch.png");
  opacity: 0.1;
}
.section--navy.pattern-blueprint::before {
  background-image: url("../img/patterns/pattern-blueprint-grid.png");
}
.section > .container { position: relative; z-index: 1; }

.lede { font-size: 1.15rem; color: var(--navy-70); max-width: 62ch; }
.section--navy .lede { color: var(--cream-60); }

/* ---------------------------- buttons ---------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  border: 2px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform var(--dur-s) var(--ease), background var(--dur-s) var(--ease), border-color var(--dur-s) var(--ease), color var(--dur-s) var(--ease);
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--gold); color: var(--navy); }
.btn-primary:hover { background: #d9a53e; }
.btn-secondary { border-color: currentColor; background: transparent; color: inherit; }
.section--navy .btn-secondary { border-color: var(--paper-white); color: var(--paper-white); }
.section--navy .btn-secondary:hover { background: var(--paper-white); color: var(--navy); }
body > .btn-secondary, .section:not(.section--navy) .btn-secondary { border-color: var(--navy); }

.btn-row { display: flex; gap: 1rem; flex-wrap: wrap; }

/* ---------------------------- header ---------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--navy-08);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 0.85rem;
  padding-bottom: 0.85rem;
}
.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
  color: var(--navy);
}
.brand-mark { width: 44px; height: auto; flex: none; color: var(--gold); }
.brand-divider { width: 1px; height: 30px; background: var(--gold); flex: none; }
.brand-word {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.15rem;
  letter-spacing: 0.01em;
  line-height: 1;
}
.brand-word span {
  display: block;
  font-weight: 500;
  font-size: 0.52rem;
  letter-spacing: 0.28em;
  color: var(--gold);
  margin-top: 0.28rem;
}

.nav-toggle {
  display: none;
  border: none;
  background: none;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--navy);
  margin: 5px 0;
  transition: transform var(--dur-s) var(--ease), opacity var(--dur-s) var(--ease);
}

.main-nav ul {
  display: flex;
  gap: 1.9rem;
  list-style: none;
  margin: 0;
  padding: 0;
}
.main-nav a {
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--navy-70);
  position: relative;
  padding: 0.3rem 0;
}
.main-nav a:hover, .main-nav a[aria-current="page"] { color: var(--navy); }
.main-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 2px;
  background: var(--gold);
}
.header-cta { display: flex; align-items: center; gap: 1.6rem; }

@media (max-width: 1100px) {
  .nav-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: calc(100vh - 64px);
    align-self: auto;
    flex: none;
    z-index: 60;
    overflow-y: auto;
    background-color: var(--paper-white);
    opacity: 0;
    padding: 2rem var(--gutter);
    transform: translateY(-8px);
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--dur-s) var(--ease), transform var(--dur-s) var(--ease), visibility 0s linear var(--dur-s);
  }
  .main-nav.is-open {
    opacity: 1;
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
    transition: opacity var(--dur-s) var(--ease), transform var(--dur-s) var(--ease);
  }
  .main-nav ul { flex-direction: column; gap: 1.5rem; }
  .main-nav a { font-size: 1.15rem; }
  .header-cta .btn-secondary { display: none; }
}

/* ---------------------------- scroll-scrubbed hero video ---------------------------- */
/* .bridge-scroll__sticky (the video) and .bridge-scroll__foreground (real page
   content) share one grid cell, stacked on top of each other. The foreground's
   three 100vh blocks give that cell its height (300vh); the sticky video pins
   within it, so content scrolls normally in front while the video keeps
   scrubbing behind it — like credits rolling over a fixed backdrop. */
.bridge-scroll { position: relative; }
.bridge-scroll__stack {
  display: grid;
  grid-template-columns: 1fr;
  grid-template-rows: 1fr;
}
.bridge-scroll__sticky {
  grid-area: 1 / 1;
  align-self: start;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: hidden;
  background: var(--navy);
}
.bridge-scroll__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.bridge-scroll__scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,26,49,0.6) 0%, rgba(8,26,49,0.32) 45%, rgba(8,26,49,0.75) 100%);
}
.bridge-scroll__foreground {
  grid-area: 1 / 1;
  position: relative;
  z-index: 1;
}
.bridge-scroll__block {
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: var(--paper-white);
}
.bridge-scroll__block h1, .bridge-scroll__block h2 { color: var(--paper-white); }
.bridge-scroll__block .lede { color: var(--cream-60); margin-bottom: 2rem; }
.bridge-scroll__block .mission-quote p { color: var(--paper-white); }

@media (prefers-reduced-motion: reduce) {
  .bridge-scroll__stack { display: block; }
  .bridge-scroll__sticky { position: relative; height: auto; }
  .bridge-scroll__video { display: none; }
  .bridge-scroll__sticky::before {
    content: "";
    display: block;
    aspect-ratio: 21 / 9;
    background: url("../video/bridge-hero-poster.jpg") center / cover no-repeat;
  }
  .bridge-scroll__foreground { position: static; }
  .bridge-scroll__block { min-height: auto; padding: 3rem 0; color: var(--navy); }
  .bridge-scroll__block h1, .bridge-scroll__block h2 { color: var(--navy); }
  .bridge-scroll__block .lede { color: var(--navy-70); }
  .bridge-scroll__block .mission-quote p { color: var(--navy); }
  .bridge-scroll__block .stat-label { color: var(--navy-70); }
}

.badge-501c3 {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--gold-15);
  border: 1px solid var(--gold-30);
  color: var(--gold);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  padding: 0.5rem 0.9rem;
  border-radius: 999px;
  margin-bottom: 1.4rem;
}

/* ---------------------------- reveal-on-scroll ---------------------------- */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur-m) var(--ease), transform var(--dur-m) var(--ease);
}
.reveal.in-view { opacity: 1; transform: translateY(0); }

.stagger > * {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity var(--dur-m) var(--ease), transform var(--dur-m) var(--ease);
  transition-delay: calc(var(--i, 0) * 110ms);
}
.stagger.in-view > * { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  .reveal, .stagger > * {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
    clip-path: inset(0 0 0 0) !important;
  }
}

/* ---------------------------- quote ---------------------------- */
.mission-quote {
  text-align: center;
  max-width: 46ch;
  margin: 0 auto;
}
.mission-quote p {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--navy);
  margin: 0;
  max-width: none;
}
.mission-quote cite {
  display: block;
  margin-top: 1.1rem;
  font-style: normal;
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold);
}

/* ---------------------------- program cards ---------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.75rem;
  margin-top: 2.5rem;
}
.card {
  background: var(--paper-white);
  border: 1px solid var(--navy-08);
  border-radius: var(--radius);
  padding: 2rem 1.75rem;
  box-shadow: 0 1px 2px var(--navy-08), 0 12px 28px var(--navy-08);
}
.icon-slot {
  width: 76px;
  height: 76px;
  margin-bottom: 1.25rem;
}
.icon-slot img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 18px;
  box-shadow: 0 1px 2px var(--navy-08), 0 6px 14px var(--navy-08);
}
.card h3 { margin-bottom: 0.5rem; }
.card p { color: var(--navy-70); font-size: 0.95rem; margin: 0; }

/* ---------------------------- stats ---------------------------- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
  text-align: center;
}
.stat-icon {
  width: 56px;
  height: 56px;
  object-fit: contain;
  border-radius: 14px;
  margin: 0 auto 1rem;
}
.stat-num {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(2.4rem, 5vw, 3.4rem);
  color: var(--gold);
  line-height: 1;
}
.stat-label {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--cream-60);
}

/* ---------------------------- misc content blocks ---------------------------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}
@media (max-width: 800px) { .two-col { grid-template-columns: 1fr; } }

.placeholder-panel {
  border: 1px dashed var(--navy-15);
  border-radius: var(--radius);
  padding: 2.5rem;
  text-align: center;
  color: var(--navy-70);
  background: var(--navy-08);
}

.divider-arch {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.5rem;
  background-color: var(--gold);
}

form.contact-form {
  display: grid;
  gap: 1.1rem;
  max-width: 560px;
}
form.contact-form .hidden { display: none; }
form.contact-form label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
}
form.contact-form input,
form.contact-form select,
form.contact-form textarea {
  width: 100%;
  font: inherit;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--navy-15);
  border-radius: 8px;
  background: var(--paper-white);
  color: var(--navy);
}
form.contact-form input:focus,
form.contact-form select:focus,
form.contact-form textarea:focus {
  outline: 2px solid var(--gold);
  outline-offset: 1px;
}

.news-item {
  padding: 1.75rem 0;
  border-bottom: 1px solid var(--navy-08);
}
.news-date {
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 0.4rem;
  display: block;
}

/* ---------------------------- footer ---------------------------- */
.site-footer {
  background: var(--navy);
  color: var(--cream-60);
  padding: 3.5rem 0 2rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 2.5rem;
}
@media (max-width: 700px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-grid h4 {
  color: var(--paper-white);
  font-size: 0.82rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 1rem;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 0.6rem; }
.footer-grid a { text-decoration: none; color: var(--cream-60); font-size: 0.92rem; }
.footer-grid a:hover { color: var(--paper-white); }
.footer-brand { display: flex; align-items: center; gap: 0.6rem; margin-bottom: 1rem; }
.footer-brand .brand-mark { color: var(--gold); }
.footer-brand span { font-family: var(--font-display); font-weight: 900; color: var(--paper-white); font-size: 1rem; }
.footer-bottom {
  margin-top: 3rem;
  padding-top: 1.5rem;
  border-top: 1px solid rgba(245,240,230,0.12);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.78rem;
}

/* skip link */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--gold);
  color: var(--navy);
  padding: 0.75rem 1.25rem;
  z-index: 100;
  font-weight: 700;
  text-decoration: none;
}
.skip-link:focus { left: var(--gutter); top: 0.75rem; }

:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }

/* ---------------------------- donate form ---------------------------- */
.donate-panel {
  background: var(--paper-white);
  border: 1px solid var(--navy-08);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 1px 2px var(--navy-08), 0 12px 28px var(--navy-08);
}
.donate-form { display: grid; gap: 1.25rem; }

.donate-toggle {
  display: inline-flex;
  background: var(--navy-08);
  border-radius: 999px;
  padding: 4px;
  gap: 4px;
}
.donate-toggle-btn {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.85rem;
  padding: 0.55rem 1.1rem;
  border-radius: 999px;
  border: none;
  background: transparent;
  color: var(--navy-70);
  cursor: pointer;
  transition: background var(--dur-s) var(--ease), color var(--dur-s) var(--ease);
}
.donate-toggle-btn.is-active { background: var(--navy); color: var(--paper-white); }

.donate-amounts {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0.6rem;
}
.donate-amount-btn {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.75rem 0.5rem;
  border-radius: 10px;
  border: 2px solid var(--navy-15);
  background: var(--paper-white);
  color: var(--navy);
  cursor: pointer;
  transition: border-color var(--dur-s) var(--ease), background var(--dur-s) var(--ease);
}
.donate-amount-btn.is-active { border-color: var(--gold); background: var(--gold-15); }

.donate-custom label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--navy-70);
}
.donate-custom-input {
  display: flex;
  align-items: center;
  border: 1px solid var(--navy-15);
  border-radius: 8px;
  padding: 0 0.75rem;
}
.donate-custom-input span { color: var(--navy-70); font-weight: 600; }
.donate-custom-input input {
  border: none;
  padding: 0.7rem 0.5rem;
  font: inherit;
  width: 100%;
  color: var(--navy);
  background: transparent;
}
.donate-custom-input input:focus { outline: none; }
.donate-custom-input:focus-within { outline: 2px solid var(--gold); outline-offset: 1px; }

.donate-submit { width: 100%; justify-content: center; }
.donate-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.donate-error { color: #B3261E; font-size: 0.85rem; margin: 0; }
.donate-note { font-size: 0.78rem; color: var(--navy-70); margin: 0; text-align: center; }