:root {
  --bg: #faf7f2;
  --surface: #ffffff;
  --ink: #1f2933;
  --ink-soft: #52606d;
  --muted: #9aa5b1;
  --accent: #b3541e;
  --accent-ink: #ffffff;
  --border: #e4dfd6;
  --danger: #b3261e;
  --ok: #2f6f3e;
  --radius: 12px;
  --shadow: 0 2px 8px rgba(31, 41, 51, 0.06);
  --tap: 44px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #17171a;
    --surface: #22232a;
    --ink: #f2ede4;
    --ink-soft: #c3bdb0;
    --muted: #7a7669;
    --accent: #e08a4a;
    --accent-ink: #17171a;
    --border: #33343d;
    --shadow: 0 2px 10px rgba(0, 0, 0, 0.4);
  }
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font: 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  -webkit-text-size-adjust: 100%;
}

body {
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
}

/* ---------- Header ---------- */

header {
  padding: 10px 16px 6px;
  border-bottom: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand { text-decoration: none; color: var(--ink); }
.brand h1 { margin: 0; font-size: 1.2rem; text-align: center; }

nav {
  display: flex;
  gap: 4px;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  width: 100%;
  max-width: 100%;
}

nav a {
  color: var(--ink-soft);
  text-decoration: none;
  font-size: 0.95rem;
  padding: 6px 10px;
  border-radius: 8px;
  min-height: 36px;
  display: inline-flex;
  align-items: center;
}

nav a:hover, nav a:focus-visible {
  color: var(--accent);
  background: rgba(179, 84, 30, 0.08);
}

.nav-download { color: var(--accent); }
.nav-admin { color: var(--muted); }

/* Very narrow screens: keep the nav on one line, scroll horizontally if needed */
@media (max-width: 420px) {
  nav {
    flex-wrap: nowrap;
    overflow-x: auto;
    justify-content: flex-start;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 2px;
  }
  nav::-webkit-scrollbar { display: none; }
  nav a { flex-shrink: 0; padding: 6px 8px; font-size: 0.9rem; }
}

/* ---------- Layout ---------- */

main {
  flex: 1;
  padding: 20px 16px 40px;
  max-width: 640px;
  width: 100%;
  margin: 0 auto;
}

footer {
  padding: 14px 16px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  text-align: center;
  font-size: 0.85rem;
}

/* ---------- Home ---------- */

.lede {
  font-size: 1.05rem;
  color: var(--ink-soft);
  margin: 0 0 20px;
  text-align: center;
}

.cta-row {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 12px;
  align-items: stretch;
}

.cta-row .btn { justify-content: center; }

@media (min-width: 520px) {
  .cta-row { flex-direction: row; justify-content: center; flex-wrap: wrap; }
  .cta-row .btn { min-width: 160px; }
}

/* Modal */
.modal-open { overflow: hidden; }

.modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal[hidden] { display: none; }

.modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  backdrop-filter: blur(2px);
}

.modal-content {
  position: relative;
  background: var(--surface);
  border-radius: var(--radius);
  padding: 24px 20px 20px;
  max-width: 380px;
  width: 100%;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  text-align: center;
}

.modal-close {
  position: absolute;
  top: 6px;
  right: 6px;
  min-height: 36px;
  width: 36px;
  padding: 0;
  font-size: 1.4rem;
  line-height: 1;
  border: none;
  background: transparent;
  color: var(--ink-soft);
  cursor: pointer;
  border-radius: 8px;
}

.modal-close:hover { background: var(--border); color: var(--ink); }

.modal-title {
  margin: 0 0 16px;
  font-size: 1.5rem;
  color: var(--accent);
  letter-spacing: 0.01em;
}

#qr-large {
  display: flex;
  justify-content: center;
  margin: 0 auto 12px;
  padding: 12px;
  background: #ffffff;
  border-radius: 8px;
}

#qr-large canvas, #qr-large img {
  max-width: 100%;
  height: auto;
  display: block;
}

.qr-caption {
  color: var(--ink-soft);
  margin: 0 0 14px;
  font-size: 0.95rem;
}

.share-row {
  display: flex;
  gap: 8px;
}

.share-row input { flex: 1; min-width: 0; }

/* ---------- Buttons & inputs ---------- */

.btn, button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: var(--tap);
  padding: 10px 18px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: border-color 0.15s, background 0.15s;
}

.btn.small, button.small {
  min-height: 36px;
  padding: 6px 12px;
  font-size: 0.9rem;
}

.btn:hover, button:hover { border-color: var(--accent); }
.btn:focus-visible, button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn.primary, button.primary, button[type="submit"] {
  background: var(--accent);
  color: var(--accent-ink);
  border-color: var(--accent);
}

.btn.primary:hover, button.primary:hover, button[type="submit"]:hover {
  filter: brightness(0.94);
}

input, textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 16px; /* prevent iOS zoom on focus */
  min-height: var(--tap);
}

textarea { min-height: unset; resize: vertical; }

input:focus, textarea:focus {
  outline: 2px solid var(--accent);
  outline-offset: 1px;
  border-color: var(--accent);
}

/* ---------- Forms ---------- */

.form-wrap { max-width: 480px; margin: 0 auto; }
.form-wrap h2 { margin-top: 0; }

#add-form, #admin-login-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
  background: var(--surface);
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

#add-form label, #admin-login-form label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

@media (max-width: 420px) {
  .two-col { grid-template-columns: 1fr; }
}

.two-col label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.req { color: var(--danger); }

.msg {
  margin: 6px 0 0;
  min-height: 1.2em;
  font-size: 0.9rem;
  color: var(--ink-soft);
}
.msg.ok { color: var(--ok); }
.msg.err { color: var(--danger); }

/* ---------- List ---------- */

.list-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
  flex-wrap: wrap;
}

.list-header h2 { margin: 0; }

#contacts, #admin-contacts {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow);
}

.contact-name {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.contact dl {
  margin: 0;
  display: grid;
  grid-template-columns: max-content 1fr;
  gap: 6px 12px;
}

.contact .row { display: contents; }
.contact dt { color: var(--muted); font-size: 0.85rem; padding-top: 1px; }
.contact dd { margin: 0; word-break: break-word; white-space: pre-wrap; }
.contact dd a { color: var(--accent); text-decoration: none; }
.contact dd a:hover { text-decoration: underline; }

/* On narrow screens, stack dt above dd for readability */
@media (max-width: 400px) {
  .contact dl { grid-template-columns: 1fr; gap: 2px 0; }
  .contact .row { display: block; margin-bottom: 8px; }
  .contact dt { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.04em; }
}

/* ---------- Admin ---------- */

.admin-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
  flex-wrap: wrap;
}

.admin-contact .delete-btn:hover { border-color: var(--danger); color: var(--danger); }

.admin-edit {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-edit[hidden] { display: none; }

.admin-edit label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.9rem;
  color: var(--ink-soft);
}