:root { color-scheme: light; --ink: #153245; --muted: #4e6371; --primary: #145a64; --navy: #112f43; --line: #d6e1e5; --paper: #f5f8fa; --white: #fff; --soft: #e6f3f1; --error: #8b2233; }
* { box-sizing: border-box; }
body { margin: 0; color: var(--ink); background: var(--paper); font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif; font-size: 1rem; line-height: 1.6; }
a { color: var(--primary); text-underline-offset: .2em; }
a:hover { text-decoration-thickness: .15em; }
:focus-visible { outline: 3px solid #b65300; outline-offset: 4px; }
[hidden] { display: none !important; }
h1, h2, h3, p { margin-top: 0; }
h1 { font-size: clamp(1.9rem, 4vw, 2.8rem); line-height: 1.15; letter-spacing: -.035em; font-weight: 700; margin-bottom: 1rem; }
h2 { font-size: 1.3rem; line-height: 1.35; margin-bottom: .75rem; }
h3 { font-size: 1.05rem; line-height: 1.4; margin-bottom: .5rem; }
p { margin-bottom: 1rem; }
button, input, select, textarea { font: inherit; }
button, .button { min-height: 44px; padding: .65rem 1.15rem; border: 1px solid var(--primary); border-radius: .5rem; background: var(--primary); color: var(--white); font-weight: 650; display: inline-flex; align-items: center; justify-content: center; line-height: 1.45; text-decoration: none; cursor: pointer; white-space: normal; text-align: center; max-width: 100%; overflow-wrap: anywhere; }
button:hover, .button:hover { background: #0e424a; color: var(--white); }
.button-secondary { color: var(--primary); background: var(--white); }
.button-quiet { background: transparent; color: var(--ink); border-color: var(--line); }
.skip-link { position: fixed; top: -8rem; left: 1rem; z-index: 10; padding: .75rem; background: var(--white); }
.skip-link:focus { top: 1rem; }
.masthead { padding: 1.1rem 2rem; background: var(--navy); color: var(--white); display: flex; flex-wrap: wrap; gap: 1rem 2rem; align-items: center; }
.brand { font-size: 1.35rem; font-weight: 750; color: var(--white); text-decoration: none; display: inline-flex; align-items: center; gap: .65rem; }
.brand-mark { color: #9be2d3; border: 1px solid #709b9d; border-radius: 50%; width: 2rem; height: 2rem; display: inline-flex; align-items: center; justify-content: center; }
.masthead-caption { color: #c7dbdf; font-size: .9rem; }
.identity { margin-left: auto; font-size: .9rem; overflow-wrap: anywhere; min-width: 0; }
.layout { max-width: 1440px; margin: auto; display: grid; grid-template-columns: 218px minmax(0, 1fr); min-height: calc(100vh - 170px); }
.sidebar { padding: 2rem 1rem; border-right: 1px solid var(--line); background: var(--white); }
.navigation { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: .25rem; }
.navigation a { display: block; padding: .6rem .9rem; min-height: 44px; border-radius: .4rem; text-decoration: none; color: var(--ink); }
.navigation a:hover { background: var(--paper); }
.navigation [aria-current] { background: var(--soft); color: #104c53; font-weight: 700; box-shadow: inset 3px 0 #267e7c; }
.signout { padding: 1.25rem .4rem 0; margin-top: 1.25rem; border-top: 1px solid var(--line); }
main { width: 100%; min-width: 0; padding: 3rem clamp(1.25rem, 4vw, 4rem); overflow-wrap: anywhere; }
.page-heading { margin-bottom: 2rem; max-width: 50rem; }
.page-heading > p:last-child { color: var(--muted); }
.eyebrow, .step-label { text-transform: uppercase; letter-spacing: .09em; font-size: .75rem; font-weight: 750; color: var(--primary); }
.panel, .empty-state, .record { background: var(--white); border: 1px solid var(--line); border-radius: .8rem; padding: 1.6rem; margin-bottom: 1.5rem; }
.empty-state { border-top: 3px solid #518e90; max-width: 55rem; }
.empty-state p { color: var(--muted); max-width: 44rem; }
.direction { color: var(--primary); display: block; font-size: 1.8rem; margin-bottom: .75rem; }
.availability, .help { color: var(--muted); font-size: .95rem; }
.form-panel { max-width: 36rem; }
.field { margin-bottom: 1.5rem; }
label { display: block; font-weight: 650; margin-bottom: .4rem; }
input:not([type=hidden]), select, textarea { display: block; width: 100%; max-width: 100%; min-height: 46px; border: 1px solid #718894; border-radius: .4rem; padding: .6rem .75rem; color: var(--ink); background: var(--white); }
input[aria-invalid=true], textarea[aria-invalid=true] { border: 2px solid var(--error); }
.help ul { padding-left: 1.3rem; }
.field-errors { color: var(--error); font-size: .95rem; padding-left: 1.3rem; margin: .5rem 0 0; }
.message { background: var(--soft); border-left: 4px solid #267e7c; padding: 1rem 1.25rem; border-radius: .35rem; margin-bottom: 1.5rem; }
.message-error { background: #fff1f2; border-color: var(--error); color: #701b2a; }
.message-error a { color: #701b2a; }
.message h2 { font-size: 1.05rem; }
.message ul { margin-bottom: 0; padding-left: 1.25rem; }
.submit-feedback { font-size: .95rem; color: var(--primary); margin: .75rem 0 0; }
.recovery { border-top: 1px solid var(--line); padding-top: 1.25rem; margin-top: 1.5rem; }
.list-section { margin-top: 2rem; }
.record-list { list-style: none; padding: 0; }
.record { display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; margin-bottom: .75rem; }
.record > * { min-width: 0; }
.record p { margin-bottom: .5rem; color: var(--muted); }
.badge { font-size: .85rem; display: inline-block; border-radius: 1rem; padding: .15rem .7rem; background: #eef2f5; color: #3d5363; }
.invitation-code { font-size: 1.35rem; letter-spacing: .15em; }
.welcome { max-width: 51rem; padding: 1rem 0 2rem; }
.welcome h1 { font-size: clamp(2.4rem, 5vw, 4.2rem); max-width: 40rem; }
.lead { font-size: 1.2rem; color: var(--muted); }
.actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1.5rem; }
.intro-grid { border-top: 1px solid var(--line); padding-top: 2rem; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 1.75rem; }
.intro-grid p { color: var(--muted); }
.step-label { display: block; margin-bottom: .75rem; }
.footer { border-top: 1px solid var(--line); padding: 1.2rem 2rem; display: flex; flex-wrap: wrap; gap: .5rem 2rem; justify-content: space-between; font-size: .8rem; color: var(--muted); background: var(--white); }
@media (max-width: 760px) {
  .masthead { padding: 1rem 1.25rem; gap: .5rem 1rem; }
  .masthead-caption { display: none; }
  .layout { display: block; }
  .sidebar { border-right: 0; border-bottom: 1px solid var(--line); padding: .75rem; }
  .navigation { flex-direction: row; flex-wrap: wrap; gap: .2rem; }
  .navigation a { padding: .55rem .7rem; }
  .signout { padding: .6rem 0 0; margin-top: .6rem; }
  .signout button { padding: .45rem .7rem; font-size: .9rem; }
  main { padding: 2rem 1.25rem; }
  .page-heading { margin-bottom: 1.5rem; }
  .panel, .empty-state, .record { padding: 1.2rem; }
  .record { align-items: flex-start; flex-direction: column; gap: 1rem; }
  .intro-grid { grid-template-columns: 1fr; gap: 1rem; }
  .welcome { padding-top: .5rem; }
  .footer { padding: 1.1rem 1.25rem; }
}
@media (prefers-reduced-motion: no-preference) { a, button { transition: background-color .15s; } }