/* ZecPort personal web app. One stylesheet, no web fonts, no third parties.
   Mobile first; light and dark follow the device. */

:root {
  --bg: #f7f5f0;
  --surface: #ffffff;
  --text: #1b1a17;
  --muted: #5f5b52;
  --line: #e3dfd5;
  --accent: #f4b728;
  --accent-text: #1b1a17;
  --accent-strong: #c98e00;
  --ok-bg: #e8f5ec;
  --ok-text: #185c32;
  --error-bg: #fdecea;
  --error-text: #8a1c12;
  --focus: #1f5fd6;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 8px 24px rgba(0, 0, 0, 0.06);
  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #131210;
    --surface: #1d1c19;
    --text: #f1eee7;
    --muted: #b1ab9f;
    --line: #34322d;
    --accent: #f4b728;
    --accent-text: #1b1a17;
    --accent-strong: #f7c85a;
    --ok-bg: #16301f;
    --ok-text: #9fe0b4;
    --error-bg: #3a1714;
    --error-text: #ffb4ab;
    --focus: #8ab4ff;
    --shadow: none;
  }
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.55 system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  width: 100%;
  max-width: 44rem;
  margin: 0 auto;
  padding: 1.5rem 1rem 3rem;
  flex: 1;
}

main.narrow,
main.pay {
  max-width: 32rem;
}

h1 {
  font-size: clamp(1.75rem, 5vw, 2.4rem);
  line-height: 1.15;
  margin: 0.25rem 0 1rem;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
}

h2 {
  font-size: 1.2rem;
  margin: 0 0 0.75rem;
}

a {
  color: inherit;
  text-underline-offset: 0.2em;
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.9em;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 2px;
}

.skip {
  position: absolute;
  left: -999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  background: var(--surface);
  padding: 0.5rem 1rem;
  z-index: 10;
}

[hidden] {
  display: none !important;
}

/* ----- header and footer ----- */

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.75rem 1rem;
  padding-top: max(0.75rem, env(safe-area-inset-top));
  max-width: 60rem;
  width: 100%;
  margin: 0 auto;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
}

.mark {
  display: inline-grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 800;
}

.top nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.top nav a {
  text-decoration: none;
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 500;
}

.top nav a:hover {
  color: var(--text);
}

.top nav a.nav-cta {
  background: var(--text);
  color: var(--bg);
}

.foot {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: center;
  padding: 1.5rem 1rem;
  padding-bottom: max(1.5rem, env(safe-area-inset-bottom));
}

.foot p {
  max-width: 36rem;
  margin: 0 auto;
}

/* ----- building blocks ----- */

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.25rem;
  margin: 0 0 1.25rem;
  box-shadow: var(--shadow);
}

.card.danger {
  border-color: var(--error-text);
}

.lede {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 1.5rem;
}

.eyebrow {
  margin: 0;
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.hint {
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0.35rem 0 1rem;
}

.optional {
  color: var(--muted);
  font-weight: 400;
}

.status {
  min-height: 1.5em;
  color: var(--muted);
  font-size: 0.95rem;
  margin: 0.5rem 0 0;
}

.field-error {
  color: var(--error-text);
  font-size: 0.95rem;
  margin: 0.35rem 0 0.75rem;
}

.field-error:empty {
  display: none;
}

.notice {
  border-radius: 10px;
  padding: 0.75rem 1rem;
  margin: 0 0 1rem;
  background: var(--bg);
  border: 1px solid var(--line);
}

.notice.ok {
  background: var(--ok-bg);
  color: var(--ok-text);
  border-color: transparent;
}

.notice.error {
  background: var(--error-bg);
  color: var(--error-text);
  border-color: transparent;
}

/* ----- forms ----- */

label {
  display: block;
  font-weight: 600;
  margin: 0 0 0.35rem;
}

input[type='text'],
textarea {
  width: 100%;
  font: inherit;
  font-size: 1.05rem;
  color: var(--text);
  background: var(--bg);
  border: 1.5px solid var(--line);
  border-radius: 10px;
  padding: 0.7rem 0.8rem;
  min-height: 3rem;
}

textarea {
  resize: vertical;
}

input[aria-invalid='true'],
textarea[aria-invalid='true'] {
  border-color: var(--error-text);
}

.inline-field {
  display: flex;
  align-items: stretch;
  gap: 0.5rem;
}

.inline-field input {
  flex: 1;
  min-width: 0;
}

.at {
  display: grid;
  place-items: center;
  font-weight: 700;
  color: var(--muted);
  padding: 0 0.1rem;
}

label.check {
  display: flex;
  gap: 0.6rem;
  align-items: center;
  font-weight: 600;
  margin: 1rem 0;
}

label.check input {
  width: 1.3rem;
  height: 1.3rem;
}

button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font: inherit;
  font-weight: 600;
  min-height: 3rem;
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  border: 1.5px solid transparent;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  background: transparent;
}

button:disabled {
  opacity: 0.55;
  cursor: progress;
}

.primary {
  background: var(--accent);
  color: var(--accent-text);
}

.primary:hover {
  background: var(--accent-strong);
}

.secondary {
  background: var(--surface);
  border-color: var(--line);
}

.secondary:hover {
  border-color: var(--muted);
}

.quiet {
  color: var(--muted);
  text-decoration: underline;
  padding-inline: 0.5rem;
}

button.danger {
  background: var(--error-text);
  color: var(--surface);
  margin-top: 0.75rem;
}

.wide {
  width: 100%;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.75rem 0 0;
}

form.inline {
  display: inline;
}

/* ----- home ----- */

.hero {
  padding: 1.5rem 0 1rem;
}

.hero h1 {
  font-size: clamp(2rem, 7vw, 3rem);
}

.steps ol,
.promise ul {
  padding-left: 1.25rem;
}

.steps li,
.promise li {
  margin: 0 0 0.6rem;
}

.steps,
.promise {
  margin: 2rem 0;
}

.find label {
  font-weight: 600;
}

/* ----- the payment page ----- */

.pay-card {
  text-align: center;
}

.pay-card h1 {
  margin-bottom: 1.25rem;
}

.summary {
  margin: 0 0 1rem;
}

.summary div {
  margin: 0 0 0.5rem;
}

.summary dt {
  color: var(--muted);
  font-size: 0.85rem;
}

.summary dd {
  margin: 0;
  overflow-wrap: anywhere;
}

.summary .amount {
  font-size: 1.8rem;
  font-weight: 700;
}

.qr {
  width: min(100%, 17rem);
  margin: 0.5rem auto 1.25rem;
  background: #fff;
  border-radius: 12px;
  padding: 0.25rem;
}

.qr svg {
  display: block;
  width: 100%;
  height: auto;
}

.pay-card .actions {
  justify-content: center;
}

.payer {
  text-align: left;
  margin: 1.25rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--line);
}

details {
  margin: 1.25rem 0 0;
  text-align: left;
}

summary {
  cursor: pointer;
  font-weight: 600;
  min-height: 2.5rem;
  display: flex;
  align-items: center;
}

.address-text {
  display: block;
  overflow-wrap: anywhere;
  word-break: break-all;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.75rem;
  margin: 0.5rem 0;
  font-size: 0.85rem;
  text-align: left;
}

.own {
  margin: 1.25rem 0 0;
  color: var(--muted);
}

.help {
  margin: 1.5rem 0;
}

.help ul {
  padding-left: 1.25rem;
}

.help li {
  margin: 0 0 0.6rem;
}

.privacy {
  color: var(--muted);
  font-size: 0.9rem;
}

/* On phones, the wallet button comes first; on computers, the QR code. */
@media (pointer: fine) and (min-width: 48rem) {
  #request {
    display: flex;
    flex-direction: column;
  }

  #request .summary {
    order: 1;
  }

  #request .qr {
    order: 2;
  }

  #request #open-wallet {
    order: 4;
  }

  #request .actions {
    order: 3;
    margin-bottom: 0.75rem;
  }

  #request .status {
    order: 5;
  }
}

/* ----- requests ----- */

.link-line {
  overflow-wrap: anywhere;
  font-weight: 600;
}

.requests {
  list-style: none;
  padding: 0;
  margin: 0;
}

.request {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  margin: 0 0 0.75rem;
}

.request-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
}

.request-top strong {
  font-size: 1.2rem;
}

.request-top time {
  color: var(--muted);
  font-size: 0.9rem;
}

.request-note {
  margin: 0.25rem 0 0;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.empty {
  color: var(--muted);
  padding: 1.5rem;
  text-align: center;
  border: 1.5px dashed var(--line);
  border-radius: var(--radius);
}

.callout {
  border-color: var(--accent);
}

.disclosure {
  background: var(--bg);
  border-radius: 10px;
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
}

.disclosure ul {
  padding-left: 1.1rem;
  margin: 0.5rem 0 0;
}

.disclosure li {
  margin: 0 0 0.35rem;
}

.passkeys {
  list-style: none;
  padding: 0;
  margin: 0 0 1rem;
}

.passkeys li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.75rem;
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--line);
}

.passkeys .hint {
  margin: 0;
}

.foot-links {
  margin-top: 0.5rem !important;
}

.prose h2 {
  margin-top: 1.75rem;
}

.prose li {
  margin: 0 0 0.5rem;
}

.prose pre {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 0.9rem 1rem;
  overflow-x: auto;
  font-size: 0.85rem;
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}