/* WelderMail — stoic, cool, light. Black ink on off-white paper. */

:root {
  --paper: #F6F6F3;
  --ink: #111111;
  --ink-soft: #5E5E5A;
  --rule: #111111;
  --hair: rgba(17, 17, 17, 0.14);
  --field: #FBFBF9;
  --sans: ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: ui-monospace, "SF Mono", SFMono-Regular, Consolas, "Liberation Mono", Menlo, monospace;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 400 17px/1.5 var(--sans);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.wrap { width: 100%; max-width: 640px; margin: 0 auto; padding: 0 16px; }
.wrap.narrow { max-width: 460px; }
main.wrap { flex: 1; padding-top: 32px; padding-bottom: 48px; }

a { color: var(--ink); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { text-decoration-thickness: 2px; }

h1, h2 { font-weight: 500; letter-spacing: -0.01em; line-height: 1.2; margin: 0 0 12px; }
h1 { font-size: 28px; }
h2 { font-size: 18px; }
p { margin: 0 0 14px; }

code, .mono { font-family: var(--mono); letter-spacing: 0.02em; }

.muted { color: var(--ink-soft); }
.small { font-size: 15px; }
.hint { display: block; color: var(--ink-soft); font-size: 14px; margin-top: 6px; }
.fine { color: var(--ink-soft); font-size: 13px; margin-top: 32px; }
.eyebrow { font-size: 12px; text-transform: uppercase; letter-spacing: 0.12em; color: var(--ink-soft); margin: 0 0 6px; }

/* Header and footer */
.top { border-bottom: 1px solid var(--rule); }
.top-row { display: flex; align-items: center; justify-content: space-between; min-height: 56px; gap: 16px; }
.wordmark { font-weight: 600; letter-spacing: 0.02em; text-decoration: none; font-size: 18px; }
.nav { display: flex; gap: 20px; align-items: center; font-size: 15px; }
.nav a { text-decoration: none; }
.nav a:hover { text-decoration: underline; }
.foot { border-top: 1px solid var(--rule); padding-top: 16px; padding-bottom: 24px; display: flex; gap: 20px; font-size: 13px; }
.foot a { color: var(--ink-soft); text-decoration: none; }
.foot a:hover { color: var(--ink); }

/* Sections */
.ruled { border-top: 1px solid var(--rule); padding-top: 24px; margin-top: 28px; }
.ruled.alert { border-top-width: 3px; }
.two-col { display: grid; grid-template-columns: 1fr; gap: 24px; }
@media (min-width: 600px) { .two-col { grid-template-columns: 1fr 1fr; } }

.hero { padding: 24px 0 8px; }
.hero h1 { font-size: 36px; max-width: 14em; }
@media (min-width: 600px) { .hero h1 { font-size: 44px; } }
.lede { font-size: 19px; color: var(--ink-soft); max-width: 32em; }

ul.plain, ol.steps { margin: 0; padding: 0; list-style: none; }
ul.plain li { padding: 8px 0; border-bottom: 1px solid var(--hair); }
ol.steps { counter-reset: s; }
ol.steps li { counter-increment: s; padding: 10px 0 10px 36px; position: relative; border-bottom: 1px solid var(--hair); }
ol.steps li::before { content: counter(s); position: absolute; left: 0; top: 10px; font-family: var(--mono); color: var(--ink-soft); }

.prose ul { padding-left: 20px; }
.prose li { margin-bottom: 6px; }
.prose h2 { margin-top: 28px; }

/* Buttons */
.btn, .btn-outline {
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 48px; padding: 0 22px;
  font: 500 16px/1 var(--sans);
  border: 1px solid var(--ink); border-radius: 2px;
  background: var(--ink); color: var(--paper);
  text-decoration: none; cursor: pointer;
}
.btn:hover { background: #000; }
.btn-outline { background: transparent; color: var(--ink); }
.btn-outline:hover { background: var(--ink); color: var(--paper); }
.btn-ghost, button.link {
  background: none; border: 0; padding: 0 2px; min-height: 32px;
  font: inherit; font-size: 15px; color: var(--ink);
  text-decoration: underline; text-underline-offset: 3px; text-decoration-thickness: 1px;
  cursor: pointer;
}
.btn-ghost { border: 1px solid var(--ink); border-radius: 2px; text-decoration: none; padding: 0 12px; min-height: 36px; font-size: 14px; }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-ghost.done { background: var(--ink); color: var(--paper); }
.actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 16px 0; }
.actions form { margin: 0; }
form.inline { display: inline; margin: 0; }

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

/* Forms */
.form { display: grid; gap: 18px; margin: 20px 0; }
.form.compact { gap: 12px; margin: 12px 0 0; max-width: 360px; }
.form label { display: block; font-size: 15px; font-weight: 500; }
.form label.check { display: flex; gap: 10px; align-items: flex-start; font-weight: 400; }
.form input[type="checkbox"] { width: 20px; height: 20px; margin: 2px 0 0; accent-color: var(--ink); flex: none; }
input:not([type="checkbox"]):not([type="hidden"]) {
  display: block; width: 100%; margin-top: 6px;
  min-height: 48px; padding: 10px 12px;
  font: 400 17px/1.3 var(--sans); color: var(--ink);
  background: var(--field); border: 1px solid var(--ink); border-radius: 2px;
  -webkit-appearance: none; appearance: none;
}
input.mono { font-family: var(--mono); letter-spacing: 0.08em; }
input:focus { outline: 2px solid var(--ink); outline-offset: 0; }
.addr-input { display: flex; align-items: stretch; margin-top: 6px; }
.addr-input input { margin-top: 0; border-right: 0; min-width: 0; }
.addr-input .suffix { display: flex; align-items: center; padding: 0 12px; border: 1px solid var(--ink); background: var(--paper); font-family: var(--mono); font-size: 14px; white-space: nowrap; }
.field-error { display: block; font-size: 14px; font-weight: 500; margin-top: 6px; padding-left: 8px; border-left: 3px solid var(--ink); }
#username-status.ok::before { content: "✓ "; }
#username-status.bad { color: var(--ink); font-weight: 500; }

.cf-turnstile { min-height: 65px; }

/* Notices */
.notice { padding: 12px 14px; border: 1px solid var(--ink); border-radius: 2px; margin: 16px 0; }
.notice.error { border-left-width: 4px; font-weight: 500; }
.quiet-line { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 8px 16px; padding: 10px 0; border-bottom: 1px solid var(--hair); font-size: 15px; color: var(--ink-soft); margin: 16px 0 0; }
.quiet-actions { display: flex; gap: 16px; }

/* Identity block */
.identity { display: grid; gap: 20px; padding-bottom: 20px; border-bottom: 1px solid var(--rule); }
@media (min-width: 600px) { .identity { grid-template-columns: 1.3fr 1fr; } }
.copyable { display: inline-flex; align-items: center; gap: 10px; flex-wrap: wrap; max-width: 100%; }
.copyable code { word-break: break-all; }
.address-big { font-size: 20px; margin: 0; }
.address-big code { font-weight: 500; }
.invite { font-size: 22px; margin: 0; }
.invite code { letter-spacing: 0.12em; font-weight: 500; }

/* Inbox */
.list-head { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between; margin-top: 28px; }
.list-head h1 { margin: 0; font-size: 22px; }
.search { flex: 1; max-width: 260px; }
.search input { margin: 0; min-height: 40px; font-size: 15px; }
.messages { list-style: none; margin: 12px 0 0; padding: 0; border-top: 1px solid var(--rule); }
.messages li { border-bottom: 1px solid var(--hair); }
.messages a { display: grid; grid-template-columns: 1fr auto; gap: 2px 12px; padding: 14px 0; text-decoration: none; }
.messages a:hover .subject { text-decoration: underline; }
.messages .from { font-size: 15px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.messages .when { font-size: 13px; color: var(--ink-soft); font-family: var(--mono); }
.messages .subject { grid-column: 1 / -1; color: var(--ink-soft); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.messages .unread .from, .messages .unread .subject { color: var(--ink); font-weight: 600; }
.dot { display: inline-block; width: 8px; height: 8px; border-radius: 50%; background: var(--ink); margin-right: 8px; vertical-align: 1px; }
.empty { padding: 32px 0; color: var(--ink-soft); border-top: 1px solid var(--rule); margin-top: 12px; }

/* Message */
.back { margin-bottom: 20px; font-size: 15px; }
.back a { text-decoration: none; }
.message h1 { font-size: 24px; word-break: break-word; }
.meta { display: grid; grid-template-columns: auto 1fr; gap: 4px 16px; margin: 0 0 20px; padding: 0 0 16px; border-bottom: 1px solid var(--rule); font-size: 15px; }
.meta dt { color: var(--ink-soft); }
.meta dd { margin: 0; word-break: break-word; }
.codes-found { display: flex; flex-wrap: wrap; gap: 12px 24px; padding: 16px; border: 1px solid var(--ink); margin-bottom: 20px; }
.code-big code { font-size: 26px; letter-spacing: 0.15em; font-weight: 500; }
.body { white-space: pre-wrap; word-break: break-word; overflow-wrap: anywhere; font-size: 16px; line-height: 1.6; }
.body a { word-break: break-all; }

/* Codes */
ol.codes { list-style: none; padding: 16px; margin: 16px 0; border: 1px solid var(--ink); display: grid; grid-template-columns: 1fr 1fr; gap: 10px 16px; }
ol.codes code { font-size: 17px; }

/* Rows */
ul.rows { list-style: none; margin: 0 0 16px; padding: 0; }
ul.rows li { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 12px 0; border-bottom: 1px solid var(--hair); }
.tag { font-size: 12px; border: 1px solid var(--ink); padding: 1px 6px; margin-left: 6px; vertical-align: 1px; }
.toggle-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding-top: 12px; border-top: 1px solid var(--hair); font-size: 15px; }

.qr { width: 200px; max-width: 70vw; margin: 16px 0; border: 1px solid var(--ink); }
.qr svg { display: block; width: 100%; height: auto; }

@media print {
  .top, .foot, form, .actions, .btn, .btn-outline { display: none !important; }
  body { background: #fff; }
}