:root {
  --bg: #0b1220;
  --bg2: #111b2e;
  --panel: #0f182a;
  --line: rgba(201,169,110,0.22);
  --ink: #f3efe6;
  --muted: #9aa4b5;
  --dim: #5d6779;
  --accent: #c9a96e;
  --accent-ink: #0b1220;
  --error: #e0a3a3;
  color-scheme: dark;
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; }
.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }

/* Header */
header {
  position: fixed; inset: 0 0 auto 0; z-index: 10;
  background: rgba(11,18,32,0.82);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.05);
}
.bar { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; }
.brand img { width: 30px; height: 30px; }
.brand span {
  font-family: "Cormorant Garamond", Georgia, serif; font-weight: 500;
  font-size: 1.15rem; letter-spacing: 0.14em; text-transform: uppercase;
}
nav { display: flex; align-items: center; gap: 28px; }
nav a.link {
  text-decoration: none; font-size: 0.78rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--muted); transition: color .2s;
}
nav a.link:hover { color: var(--ink); }
.btn {
  display: inline-flex; align-items: center; gap: 8px; cursor: pointer;
  font: 500 0.75rem/1 "Inter", sans-serif; letter-spacing: 0.18em; text-transform: uppercase;
  padding: 12px 18px; border-radius: 2px; text-decoration: none;
  border: 1px solid var(--accent); color: var(--accent); background: transparent;
  transition: background .2s, color .2s;
}
.btn:hover { background: var(--accent); color: var(--accent-ink); }
.btn.solid { background: var(--accent); color: var(--accent-ink); }
.btn.solid:hover { background: #d8bb84; }
.btn svg { width: 13px; height: 13px; }

/* Hero */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  /* Boston skyline at blue hour, from the MIT side. Photo: Zixi Zhou on Unsplash (Unsplash License) */
  background-color: var(--bg);
  background-image:
    linear-gradient(90deg, rgba(11,18,32,0.94) 0%, rgba(11,18,32,0.82) 32%, rgba(11,18,32,0.35) 62%, rgba(11,18,32,0.15) 100%),
    linear-gradient(0deg, rgba(11,18,32,0.85) 0%, rgba(11,18,32,0) 30%),
    url("https://images.unsplash.com/photo-1589401901631-356b7ae2f5d1?w=2400&q=80&auto=format&fit=crop");
  background-size: cover; background-position: 62% center; background-repeat: no-repeat;
  position: relative; padding: 120px 0 80px; overflow: hidden;
}
@media (max-width: 820px) {
  .hero {
    background-image:
      linear-gradient(180deg, rgba(11,18,32,0.55) 0%, rgba(11,18,32,0.8) 45%, rgba(11,18,32,0.95) 100%),
      url("https://images.unsplash.com/photo-1589401901631-356b7ae2f5d1?w=1400&q=80&auto=format&fit=crop");
    background-position: 58% center;
  }
}
.hero .wrap { width: 100%; position: relative; z-index: 1; }
.eyebrow { font-size: 0.75rem; letter-spacing: 0.32em; text-transform: uppercase; color: var(--accent); }
.hero h1 {
  font-family: "Cormorant Garamond", Georgia, serif; font-weight: 500;
  font-size: clamp(2.4rem, 6vw, 4.6rem); line-height: 1.08; margin: 22px 0 26px;
  max-width: 14ch;
}
.hero p.lede { max-width: 560px; color: var(--muted); font-size: 1.05rem; }
.rule { width: 72px; height: 1px; background: var(--accent); margin: 34px 0; }
.hero .actions { display: flex; flex-wrap: wrap; gap: 14px; }

/* Contact page */
.contact-page {
  min-height: calc(100vh - 110px); padding: 150px 0 90px;
  background: radial-gradient(120% 70% at 50% 0%, var(--bg2) 0%, var(--bg) 62%);
}
.split { display: grid; grid-template-columns: 1fr 1.4fr; gap: 64px; align-items: start; }
h2 {
  font-family: "Cormorant Garamond", Georgia, serif; font-weight: 500;
  font-size: clamp(1.9rem, 3.6vw, 2.7rem); line-height: 1.15; margin-top: 14px;
}
form .grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
label { font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--muted); }
input, textarea, select {
  width: 100%; font: 300 1rem "Inter", sans-serif; color: var(--ink);
  background: var(--panel); border: 1px solid rgba(255,255,255,0.09); border-radius: 2px;
  padding: 13px 14px; outline: none; transition: border-color .2s;
}
textarea { min-height: 140px; resize: vertical; }
input:focus, textarea:focus, select:focus { border-color: var(--accent); }
.form-foot { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 22px; flex-wrap: wrap; }
.note { font-size: 0.82rem; color: var(--dim); }
.status { font-size: 0.9rem; margin-top: 16px; min-height: 1.4em; }
.status.ok { color: var(--accent); }
.status.err { color: var(--error); }
.hp { position: absolute; left: -9999px; }

footer { border-top: 1px solid rgba(255,255,255,0.05); padding: 34px 0 40px; }
footer .wrap { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 0.78rem; letter-spacing: 0.08em; color: var(--dim); }
footer a { text-decoration: none; color: var(--dim); }
footer a:hover { color: var(--muted); }

/* Portal modal */
.overlay {
  position: fixed; inset: 0; z-index: 50; display: none; align-items: center; justify-content: center;
  background: rgba(5,9,16,0.78); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px); padding: 16px;
}
.overlay.open { display: flex; }
.modal {
  width: 100%; max-width: 420px; background: var(--bg2); border: 1px solid var(--line);
  border-radius: 3px; padding: 40px 34px 30px; position: relative;
}
.modal .close {
  position: absolute; top: 14px; right: 14px; background: none; border: 0; color: var(--muted);
  font-size: 1.4rem; line-height: 1; cursor: pointer; padding: 6px;
}
.modal .close:hover { color: var(--ink); }
.modal .lock { width: 38px; height: 38px; margin: 0 auto 16px; display: block; color: var(--accent); }
.modal h3 { font-family: "Cormorant Garamond", Georgia, serif; font-weight: 500; font-size: 1.7rem; text-align: center; }
.modal .sub { text-align: center; color: var(--muted); font-size: 0.88rem; margin: 6px 0 26px; }
.modal .field + .field { margin-top: 16px; }
.modal .row { display: flex; justify-content: space-between; align-items: center; margin: 16px 0 22px; font-size: 0.82rem; color: var(--muted); }
.modal .row label { display: flex; gap: 8px; align-items: center; text-transform: none; letter-spacing: 0; font-size: 0.82rem; }
.modal .row input { width: auto; }
.modal .row a { color: var(--accent); text-decoration: none; cursor: pointer; }
.modal .btn { width: 100%; justify-content: center; padding: 15px; }
.modal .msg { font-size: 0.85rem; color: var(--error); text-align: center; min-height: 1.3em; margin-top: 14px; }
.modal .legal { font-size: 0.72rem; color: var(--dim); text-align: center; margin-top: 18px; line-height: 1.5; }

@media (max-width: 820px) {
  nav a.link { display: none; }
  .split { grid-template-columns: 1fr; gap: 28px; }
}
@media (max-width: 560px) {
  .wrap { padding: 0 16px; }
  .brand span { font-size: 0.8rem; letter-spacing: 0.08em; white-space: nowrap; }
  .brand img { width: 24px; height: 24px; }
  header .btn { padding: 10px 11px; }
  header .btn .btn-label { display: none; }
  header .btn svg { width: 15px; height: 15px; }
  form .grid { grid-template-columns: 1fr; }
  .btn { padding: 11px 14px; }
  .modal { padding: 36px 22px 26px; }
}
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }