/* ============================================================
   Bridging the Gap — civic-editorial, Oxford-rooted
   Display: Fraunces (optical serif)  ·  Body: Hanken Grotesk
   ============================================================ */

:root {
  --ink:        #04122a;   /* deep oxford near-black */
  --oxford:     #072650;   /* oxford blue */
  --oxford-2:   #0b3568;
  --paper:      #f4eede;   /* warm chalk */
  --paper-2:    #ece3cf;
  --mint:       #34e6ad;   /* vivid signal accent */
  --mint-deep:  #0fb682;
  --gold:       #c9a24b;   /* heritage hairline, sparing */
  --ink-70:     rgba(244, 238, 222, 0.70);
  --ink-45:     rgba(244, 238, 222, 0.45);
  --paper-ink:  #1d2a1f;   /* text on chalk */
  --paper-mut:  #5c6657;

  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --f-disp: "Fraunces", Georgia, serif;
  --f-body: "Hanken Grotesk", system-ui, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--f-body);
  background: var(--ink);
  color: var(--ink-70);
  font-size: clamp(16px, 1.05vw, 18px);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--mint); color: var(--ink); }

a { color: inherit; text-decoration: none; }
.arr { display: inline-block; transition: transform .35s var(--ease); }
a:hover .arr { transform: translateX(5px); }

/* grain overlay */
.grain {
  position: fixed; inset: 0; z-index: 9999; pointer-events: none; opacity: .045;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55em;
  font-family: var(--f-body); font-weight: 600; font-size: .95rem;
  letter-spacing: .01em; padding: .85em 1.4em; border-radius: 100px;
  cursor: pointer; transition: all .35s var(--ease); white-space: nowrap;
  border: 1px solid transparent;
}
.btn.lg { padding: 1.05em 1.8em; font-size: 1.02rem; }
.btn-solid { background: var(--mint); color: var(--ink); box-shadow: 0 0 0 0 rgba(52,230,173,.5); }
.btn-solid:hover { background: #4ff0bd; transform: translateY(-2px); box-shadow: 0 14px 40px -12px rgba(52,230,173,.55); }
.btn-line { border-color: rgba(244,238,222,.28); color: var(--paper); }
.btn-line:hover { border-color: var(--mint); color: var(--mint); }
.btn-ghost { border-color: rgba(244,238,222,.22); color: var(--paper); font-size: .88rem; padding: .65em 1.1em; }
.btn-ghost:hover { border-color: var(--mint); color: var(--mint); }

/* ---------- nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.1rem clamp(1.1rem, 4vw, 3rem);
  transition: background .4s var(--ease), padding .4s var(--ease), border-color .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(4,18,42,.82); backdrop-filter: blur(14px) saturate(1.3);
  border-bottom-color: rgba(244,238,222,.08); padding-top: .75rem; padding-bottom: .75rem;
}
.brand { display: inline-flex; align-items: center; gap: .6rem; }
.brand-mark { width: 38px; height: 27px; overflow: visible; }
.brand-mark .bm-deck { fill: none; stroke: var(--mint); stroke-width: 2.4; stroke-linecap: round; }
.brand-mark .bm-cable { fill: none; stroke: var(--mint); stroke-width: 1.5; stroke-linecap: round; opacity: .65; }
.brand-word { font-family: var(--f-disp); font-weight: 600; font-size: 1.18rem; color: var(--paper); letter-spacing: -.01em; }
.brand-word em { font-style: italic; font-weight: 400; opacity: .6; margin: 0 .12em; font-size: .82em; }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { font-size: .92rem; color: var(--ink-70); position: relative; padding: .2rem 0; transition: color .3s; }
.nav-links a::after { content: ""; position: absolute; left: 0; bottom: -2px; width: 0; height: 1.5px; background: var(--mint); transition: width .35s var(--ease); }
.nav-links a:hover { color: var(--paper); }
.nav-links a:hover::after { width: 100%; }

/* ---------- hero ---------- */
.hero {
  position: relative; min-height: 100svh; display: flex; align-items: center;
  padding: 7rem clamp(1.1rem, 4vw, 3rem) 5rem;
  background:
    radial-gradient(120% 90% at 50% -10%, var(--oxford-2) 0%, var(--oxford) 34%, var(--ink) 72%);
  overflow: hidden;
}
.hero-atmos {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(40% 50% at 80% 20%, rgba(52,230,173,.13), transparent 70%),
    radial-gradient(45% 55% at 12% 75%, rgba(201,162,75,.10), transparent 70%);
  mix-blend-mode: screen;
}
.hero-bridge {
  position: absolute; left: 50%; top: 56%; transform: translate(-50%,-50%);
  width: min(1200px, 116%); height: auto; opacity: .9; pointer-events: none;
}
.bridge-deck { fill: none; stroke-width: 3; }
.bridge-deck-2 { fill: none; stroke: rgba(52,230,173,.14); stroke-width: 12; filter: blur(2px); }
.bridge-cables line { stroke: rgba(52,230,173,.34); stroke-width: 1.4; }

.hero-inner { position: relative; z-index: 5; max-width: var(--maxw); margin: 0 auto; width: 100%; }
.eyebrow {
  font-size: .82rem; letter-spacing: .16em; text-transform: uppercase; font-weight: 600;
  color: var(--mint); margin-bottom: 1.7rem; display: inline-flex; align-items: center;
}
.eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--mint); margin-right: .8rem; opacity: .7; }
.hero-h1 {
  font-family: var(--f-disp); font-weight: 340; font-optical-sizing: auto;
  font-size: clamp(2.7rem, 7.4vw, 6rem); line-height: .98; letter-spacing: -.025em;
  color: var(--paper); margin-bottom: 1.8rem;
}
.hero-h1 .line { display: block; }
.ink-accent { font-style: italic; font-weight: 380; color: var(--mint); }
.hero-sub { max-width: 42ch; font-size: clamp(1.05rem, 1.5vw, 1.28rem); color: var(--ink-70); margin-bottom: 2.4rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 1rem; margin-bottom: 2.6rem; }
.hero-foot { font-size: .9rem; color: var(--ink-45); display: inline-flex; align-items: center; gap: .65rem; letter-spacing: .02em; }
.pulse { width: 8px; height: 8px; border-radius: 50%; background: var(--mint); box-shadow: 0 0 0 0 rgba(52,230,173,.6); animation: pulse 2.4s infinite; }
@keyframes pulse { 0%{box-shadow:0 0 0 0 rgba(52,230,173,.55)} 70%{box-shadow:0 0 0 10px rgba(52,230,173,0)} 100%{box-shadow:0 0 0 0 rgba(52,230,173,0)} }

/* ---------- shared section ---------- */
section { padding: clamp(5rem, 11vw, 9rem) clamp(1.1rem, 4vw, 3rem); }
.section-head { max-width: var(--maxw); margin: 0 auto clamp(3rem,6vw,5rem); }
.kicker { font-size: .78rem; letter-spacing: .18em; text-transform: uppercase; font-weight: 700; color: var(--mint-deep); display: block; margin-bottom: 1.2rem; }
.h2 { font-family: var(--f-disp); font-weight: 360; font-size: clamp(2rem, 4.4vw, 3.4rem); line-height: 1.04; letter-spacing: -.02em; max-width: 18ch; }
.lede { margin-top: 1.4rem; max-width: 52ch; font-size: clamp(1.02rem,1.3vw,1.18rem); }

/* ---------- the gap ---------- */
.gap { background: var(--ink); }
.gap .h2 { color: var(--paper); }
.gap .lede { color: var(--ink-70); }
.stat-band {
  max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: repeat(3,1fr);
  gap: 1px; background: rgba(244,238,222,.10); border: 1px solid rgba(244,238,222,.10);
  border-radius: 18px; overflow: hidden;
}
.stat { background: linear-gradient(180deg, rgba(11,53,104,.30), rgba(4,18,42,.30)); padding: clamp(1.8rem,3vw,2.8rem); }
.stat-num { font-family: var(--f-disp); font-weight: 420; font-size: clamp(2.6rem,5vw,4rem); line-height: 1; color: var(--mint); letter-spacing: -.02em; display: block; }
.stat figcaption { margin-top: 1rem; font-size: .98rem; color: var(--ink-70); }
.stat cite { display: block; margin-top: .7rem; font-style: normal; font-size: .76rem; letter-spacing: .04em; color: var(--ink-45); text-transform: uppercase; }
.stat-footnote { max-width: var(--maxw); margin: 1.6rem auto 0; font-size: .92rem; color: var(--ink-45); }
.stat-footnote span { opacity: .8; }

/* ---------- the bridge ---------- */
.bridge-section { background: var(--paper); color: var(--paper-ink); position: relative; }
.bridge-section::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 70px; background: linear-gradient(var(--ink), transparent); opacity: .12; }
.section-head.light .h2 { color: var(--paper-ink); }
.section-head.light .lede { color: var(--paper-mut); }
.section-head.light .kicker { color: var(--mint-deep); }
.spans { max-width: var(--maxw); margin: 0 auto; list-style: none; display: grid; grid-template-columns: repeat(3,1fr); gap: clamp(1.5rem,3vw,3rem); counter-reset: s; }
.span { position: relative; padding-top: 2.4rem; border-top: 1.5px solid rgba(29,42,31,.18); }
.span-no { font-family: var(--f-disp); font-weight: 500; font-size: 1rem; color: var(--mint-deep); letter-spacing: .04em; }
.span h3 { font-family: var(--f-disp); font-weight: 460; font-size: clamp(1.5rem,2.4vw,2rem); margin: 1.1rem 0 .8rem; color: var(--paper-ink); letter-spacing: -.01em; }
.span p { color: var(--paper-mut); font-size: 1.02rem; }
.span::after { content: ""; position: absolute; top: -1.5px; left: 0; width: 0; height: 1.5px; background: var(--mint-deep); transition: width 1s var(--ease) .15s; }
.span.in::after { width: 46%; }

/* ---------- who ---------- */
.who { background: var(--ink); }
.who .h2 { color: var(--paper); }
.who-grid { max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: repeat(3,1fr); gap: clamp(1rem,2vw,1.6rem); }
.card {
  background: linear-gradient(180deg, rgba(11,53,104,.34), rgba(7,38,80,.16));
  border: 1px solid rgba(244,238,222,.10); border-radius: 20px; padding: clamp(1.6rem,2.4vw,2.4rem);
  display: flex; flex-direction: column; transition: transform .45s var(--ease), border-color .45s var(--ease), box-shadow .45s var(--ease);
}
.card:hover { transform: translateY(-6px); border-color: rgba(52,230,173,.45); box-shadow: 0 30px 60px -30px rgba(0,0,0,.6); }
.card-glyph { font-size: 1.7rem; color: var(--mint); margin-bottom: 1.3rem; }
.card h3 { font-family: var(--f-disp); font-weight: 460; font-size: 1.55rem; color: var(--paper); margin-bottom: .8rem; }
.card p { color: var(--ink-70); font-size: 1rem; flex: 1; }
.card-link { margin-top: 1.6rem; color: var(--mint); font-weight: 600; font-size: .94rem; display: inline-flex; align-items: center; gap: .5rem; }

/* ---------- oxfordshire ---------- */
.oxon { background: linear-gradient(180deg, var(--ink), var(--oxford) 130%); }
.oxon-inner { max-width: var(--maxw); margin: 0 auto; display: grid; grid-template-columns: 1.15fr .85fr; gap: clamp(2rem,5vw,5rem); align-items: center; }
.oxon-copy .h2 { color: var(--paper); }
.oxon-copy .lede { color: var(--ink-70); margin-bottom: 2.2rem; }
.oxon-proof { border-left: 2px solid var(--mint); padding-left: 1.6rem; display: flex; flex-direction: column; gap: 1.3rem; }
.proof-row { display: flex; flex-direction: column; gap: .15rem; }
.proof-k { font-size: .76rem; letter-spacing: .12em; text-transform: uppercase; color: var(--ink-45); }
.proof-v { font-family: var(--f-disp); font-size: clamp(1.15rem,1.8vw,1.5rem); color: var(--paper); font-weight: 420; }

/* ---------- final cta ---------- */
.cta { position: relative; background: var(--ink); text-align: center; overflow: hidden; }
.cta-arc { position: absolute; left: 0; right: 0; top: 0; width: 100%; height: 140px; }
.cta-arc path { fill: none; stroke: rgba(52,230,173,.30); stroke-width: 1.5; }
.cta-h { font-family: var(--f-disp); font-weight: 340; font-size: clamp(2.4rem,6vw,4.6rem); color: var(--paper); letter-spacing: -.025em; line-height: 1; }
.cta-sub { max-width: 40ch; margin: 1.4rem auto 2.6rem; color: var(--ink-70); font-size: clamp(1.02rem,1.4vw,1.2rem); }
.cta-actions { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; }

/* ---------- footer ---------- */
.foot { background: #030d1f; padding: clamp(3rem,6vw,4.5rem) clamp(1.1rem,4vw,3rem) 2.5rem; border-top: 1px solid rgba(244,238,222,.07); }
.foot-top { max-width: var(--maxw); margin: 0 auto; display: flex; justify-content: space-between; align-items: center; gap: 2rem; flex-wrap: wrap; padding-bottom: 2.4rem; border-bottom: 1px solid rgba(244,238,222,.07); }
.foot-belief { font-family: var(--f-disp); font-style: italic; font-size: clamp(1.1rem,1.8vw,1.5rem); color: var(--ink-70); }
.foot-bottom { max-width: var(--maxw); margin: 2rem auto 0; display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap; font-size: .88rem; color: var(--ink-45); }
.foot-links { display: flex; gap: 1.6rem; }
.foot-links a:hover { color: var(--mint); }

/* ---------- reveal animations ---------- */
.reveal { opacity: 0; transform: translateY(22px); animation: rise .9s var(--ease) forwards; animation-delay: calc(var(--d,0) * 110ms + 200ms); }
.hero-h1 .reveal { animation-delay: calc(var(--d,0) * 110ms + 200ms); }
@keyframes rise { to { opacity: 1; transform: none; } }
.reveal-up { opacity: 0; transform: translateY(34px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal-up.in { opacity: 1; transform: none; }
.reveal-up:nth-child(2) { transition-delay: .12s; }
.reveal-up:nth-child(3) { transition-delay: .24s; }

/* set --d from data-d */
[data-d="0"]{--d:0}[data-d="1"]{--d:1}[data-d="2"]{--d:2}[data-d="3"]{--d:3}[data-d="4"]{--d:4}[data-d="5"]{--d:5}

/* bridge draw on load */
.bridge-deck-2, .bridge-deck { stroke-dasharray: 1700; stroke-dashoffset: 1700; animation: draw 2.6s var(--ease) .3s forwards; }
.bridge-cables line { opacity: 0; animation: fadeIn .5s ease forwards; }
.bridge-cables line:nth-child(1){animation-delay:1.3s}.bridge-cables line:nth-child(2){animation-delay:1.45s}.bridge-cables line:nth-child(3){animation-delay:1.6s}.bridge-cables line:nth-child(4){animation-delay:1.7s}.bridge-cables line:nth-child(5){animation-delay:1.8s}.bridge-cables line:nth-child(6){animation-delay:1.7s}.bridge-cables line:nth-child(7){animation-delay:1.6s}.bridge-cables line:nth-child(8){animation-delay:1.45s}.bridge-cables line:nth-child(9){animation-delay:1.3s}
@keyframes draw { to { stroke-dashoffset: 0; } }
@keyframes fadeIn { to { opacity: 1; } }

/* ---------- responsive ---------- */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .stat-band, .spans, .who-grid { grid-template-columns: 1fr; }
  .stat-band { border-radius: 14px; }
  .oxon-inner { grid-template-columns: 1fr; }
  .oxon-proof { border-left: none; border-top: 2px solid var(--mint); padding-left: 0; padding-top: 1.6rem; }
}
@media (max-width: 560px) {
  .nav-cta { display: none; }
  .hero { min-height: 92svh; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { justify-content: center; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal, .reveal-up { opacity: 1 !important; transform: none !important; }
  .bridge-deck, .bridge-deck-2 { stroke-dashoffset: 0 !important; }
  .bridge-cables line { opacity: 1 !important; }
}