/* Custom layer on top of Pico CSS v2.1.1 for rasp.ifmagic.ru.
   No external fonts or resources: the Content-Security-Policy is
   default-src 'self'. Brand colour, cabinet tabs, status badges, the copy
   field, mobile bottom navigation and accessibility states live here. */

/* --- Brand palette (one indigo accent, AA contrast in both schemes) --- */
:root,
:root:not([data-theme=dark]) {
  --brand: #4f46e5;
  --brand-strong: #4338ca;
  --brand-link: #4f46e5;
  --brand-inverse: #ffffff;
  --brand-focus: rgba(79, 70, 229, 0.35);

  --ok-bg: #dcfce7;
  --ok-fg: #14532d;
  --ok-text: #15803d;
  --warn-bg: #fef3c7;
  --warn-fg: #78350f;
  --danger-bg: #fee2e2;
  --danger-fg: #7f1d1d;
  --danger: #b91c1c;
  --danger-strong: #991b1b;

  --pico-primary: var(--brand-link);
  --pico-primary-background: var(--brand);
  --pico-primary-border: var(--brand);
  --pico-primary-underline: transparent;
  --pico-primary-hover: var(--brand-strong);
  --pico-primary-hover-background: var(--brand-strong);
  --pico-primary-hover-border: var(--brand-strong);
  --pico-primary-focus: var(--brand-focus);
  --pico-primary-inverse: var(--brand-inverse);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme=light]) {
    --brand-link: #a5b4fc;
    --brand-focus: rgba(165, 180, 252, 0.4);

    --ok-bg: #052e16;
    --ok-fg: #86efac;
    --ok-text: #4ade80;
    --warn-bg: #3b2a06;
    --warn-fg: #fcd34d;
    --danger-bg: #450a0a;
    --danger-fg: #fca5a5;
    --danger: #dc2626;
    --danger-strong: #b91c1c;

    --pico-primary: var(--brand-link);
    --pico-primary-background: var(--brand);
    --pico-primary-border: var(--brand);
    --pico-primary-hover: #c7d2fe;
    --pico-primary-hover-background: var(--brand-strong);
    --pico-primary-hover-border: var(--brand-strong);
    --pico-primary-focus: var(--brand-focus);
  }
}

/* --- Base layout --- */
* {
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.page {
  flex: 1 0 auto;
  width: 100%;
  max-width: 46rem;
  margin: 0 auto;
  padding: 1.5rem 1.25rem 3rem;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--pico-card-background-color);
  padding: 0.6rem 1rem;
  border-radius: 0 0 0.5rem 0;
  z-index: 100;
}

.skip-link:focus {
  left: 0;
}

/* --- Header / footer --- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 0.75rem 1.25rem;
  border-bottom: 1px solid var(--pico-muted-border-color);
  background: var(--pico-card-background-color);
}

.brand {
  font-weight: 700;
  font-size: 1.05rem;
  text-decoration: none;
  color: var(--pico-color);
}

.topnav,
.footnav {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.topnav a,
.footnav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

.footer {
  flex-shrink: 0;
  max-width: 46rem;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1.25rem;
  border-top: 1px solid var(--pico-muted-border-color);
  color: var(--pico-muted-color);
  font-size: 0.9rem;
}

.footer .footnav {
  margin-bottom: 0.5rem;
}

/* --- Typography scale --- */
h1 {
  line-height: 1.15;
  font-size: clamp(1.5rem, 4.5vw, 2.1rem);
}

h2 {
  font-size: clamp(1.15rem, 3vw, 1.35rem);
  margin-top: 0;
}

h3 {
  font-size: 1.05rem;
}

p,
li {
  max-width: 68ch;
}

.lead {
  font-size: 1.08rem;
  color: var(--pico-muted-color);
}

.muted {
  color: var(--pico-muted-color);
}

.links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* --- Cards and sections --- */
.card,
.hero {
  background: var(--pico-card-background-color);
  border: 1px solid var(--pico-card-border-color);
  border-radius: var(--pico-border-radius);
  padding: clamp(1.1rem, 4vw, 1.75rem);
}

.card-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.card-head h1 {
  margin: 0;
}

.block {
  margin-top: 1.75rem;
}

.block + .block {
  border-top: 1px solid var(--pico-muted-border-color);
  padding-top: 1.5rem;
}

.block h2 {
  margin-bottom: 0.5rem;
}

.hero {
  text-align: center;
}

.hero h1 {
  max-width: 20ch;
  margin: 0 auto 0.75rem;
}

.hero .lead {
  max-width: 46ch;
  margin: 0 auto 1.25rem;
}

.cta {
  margin: 0 0 0.75rem;
}

.cta button {
  min-height: 48px;
  padding-inline: 1.75rem;
  font-size: 1.05rem;
}

.cta + .muted {
  margin-bottom: 0;
}

/* "How it works" three steps */
.how ol {
  list-style: none;
  padding: 0;
  margin: 1rem 0 0;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(13rem, 1fr));
}

.how li {
  max-width: none;
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius);
  padding: 1rem;
  background: var(--pico-card-sectioning-background-color);
}

.how h3 {
  margin: 0.5rem 0 0.25rem;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  border-radius: 50%;
  background: var(--brand);
  color: var(--brand-inverse);
  font-weight: 700;
}

.trust ul {
  padding-left: 1.2rem;
}

/* --- Buttons and links --- */
button,
[role=button],
input[type=submit] {
  min-height: 44px;
}

button,
[role=button],
a,
input,
textarea,
select,
summary {
  transition: background-color 0.15s ease, border-color 0.15s ease,
    color 0.15s ease, box-shadow 0.15s ease;
}

:where(a, button, [role=button], input, textarea, select, summary, dialog):focus-visible {
  outline: 3px solid var(--pico-primary-focus);
  outline-offset: 2px;
}

/* Danger button: filled, clearly destructive, never disabled-looking. */
button.danger,
[role=button].danger {
  --pico-background-color: var(--danger);
  --pico-border-color: var(--danger);
  --pico-color: #ffffff;
  background-color: var(--danger);
  border-color: var(--danger);
  color: #ffffff;
}

button.danger:hover,
[role=button].danger:hover {
  background-color: var(--danger-strong);
  border-color: var(--danger-strong);
}

button.is-error,
button.is-ok {
  background-color: var(--ok-bg);
  border-color: var(--ok-text);
  color: var(--ok-fg);
}

button.is-error {
  background-color: var(--danger-bg);
  border-color: var(--danger);
  color: var(--danger-fg);
}

.danger-zone {
  border-left: 4px solid var(--danger);
  padding-left: 1rem;
}

.inline-form {
  display: inline-block;
  margin: 0 0.5rem 0.5rem 0;
}

/* --- Banners live inside the single content column --- */
.notice,
.alert {
  margin: 0 0 1.25rem;
  padding: 0.85rem 1rem;
  border-radius: var(--pico-border-radius);
  border: 1px solid var(--pico-muted-border-color);
  background: var(--pico-card-sectioning-background-color);
}

.notice {
  border-color: var(--warn-fg);
}

.alert {
  border-color: var(--danger);
  background: var(--danger-bg);
  color: var(--danger-fg);
}

.notice p:last-child,
.alert p:last-child {
  margin-bottom: 0;
}

/* --- Status badge --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.92rem;
}

.badge-dot {
  width: 0.6rem;
  height: 0.6rem;
  border-radius: 50%;
  background: currentColor;
}

.badge-ok {
  background: var(--ok-bg);
  color: var(--ok-fg);
}

.badge-warn {
  background: var(--warn-bg);
  color: var(--warn-fg);
}

/* --- Copy field: masked value + honest feedback --- */
.copy-field {
  display: flex;
  gap: 0.5rem;
  align-items: stretch;
  flex-wrap: wrap;
  margin-bottom: 0.25rem;
}

.copy-field .copy-value {
  flex: 1 1 15rem;
  min-width: 0;
  margin: 0;
  font-family: var(--pico-font-family-monospace);
  font-size: 0.9rem;
  overflow-wrap: anywhere;
}

.copy-field .copy-button {
  flex: 0 0 auto;
  margin: 0;
}

.copy-status {
  min-height: 1.25rem;
  margin: 0;
  font-size: 0.9rem;
}

.copy-status.is-ok {
  color: var(--ok-text);
}

.copy-status.is-error {
  color: var(--danger-fg);
}

/* --- Steps --- */
.steps {
  padding-left: 1.25rem;
}

.steps li {
  margin-bottom: 0.4rem;
}

/* --- QR --- */
.qr-figure {
  margin: 0;
  text-align: center;
}

.qr {
  width: 200px;
  height: 200px;
  max-width: 60%;
  background: #ffffff;
  border: 1px solid var(--pico-muted-border-color);
  border-radius: 0.5rem;
  padding: 0.5rem;
}

.qr-figure figcaption {
  margin-top: 0.5rem;
  color: var(--pico-muted-color);
  font-size: 0.9rem;
}

/* --- Account list --- */
.account {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.25rem 1rem;
  margin: 0 0 1rem;
}

.account dt {
  color: var(--pico-muted-color);
}

.account dd {
  margin: 0;
  font-weight: 600;
}

/* --- Forms --- */
.form {
  display: grid;
  gap: 0.35rem;
  margin-top: 1rem;
}

.form small {
  display: block;
  margin: -0.1rem 0 0.35rem;
  font-size: 0.85rem;
}

.form input,
.form textarea,
.form select {
  margin-bottom: 0;
}

.form button[type=submit] {
  justify-self: start;
  margin-top: 0.75rem;
}

.snippet {
  width: 100%;
  margin: 0.5rem 0;
  font-family: var(--pico-font-family-monospace);
  font-size: 0.82rem;
  overflow-wrap: anywhere;
  word-break: break-word;
}

.advanced {
  margin-top: 1.5rem;
  border: 1px solid var(--pico-muted-border-color);
  border-radius: var(--pico-border-radius);
  padding: 0.5rem 1rem;
}

.advanced summary {
  cursor: pointer;
  font-weight: 600;
  min-height: 44px;
  display: flex;
  align-items: center;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.copy-helper {
  position: absolute;
  left: -9999px;
  top: 0;
  opacity: 0;
}

/* --- Cabinet tabs: top on desktop, bottom bar on mobile --- */
.lk-nav {
  display: flex;
  gap: 0.25rem;
  margin: 0 0 1rem;
  border-bottom: 1px solid var(--pico-muted-border-color);
}

.lk-nav a {
  flex: 1 1 auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.6rem 0.5rem;
  text-align: center;
  text-decoration: none;
  color: var(--pico-color);
  border-bottom: 2px solid transparent;
  border-radius: 0.25rem 0.25rem 0 0;
}

.lk-nav a:hover {
  background: var(--pico-card-sectioning-background-color);
}

.lk-nav a[aria-current=page] {
  color: var(--pico-primary);
  border-bottom-color: var(--pico-primary);
  font-weight: 600;
}

/* --- Error page --- */
.error-page {
  text-align: center;
}

.error-page .error-code {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--pico-muted-color);
  margin: 0;
}

.error-page h1 {
  margin-top: 0.25rem;
}

.error-page p {
  max-width: 48ch;
  margin-inline: auto;
}

/* --- Dialog polish --- */
dialog article {
  max-width: 28rem;
}

dialog article h2 {
  margin-top: 0;
}

/* --- Mobile pass --- */
@media (max-width: 640px) {
  .page {
    padding-bottom: 5.5rem;
  }

  .lk-nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    margin: 0;
    z-index: 30;
    background: var(--pico-card-background-color);
    border-top: 1px solid var(--pico-muted-border-color);
    border-bottom: 0;
    padding-bottom: env(safe-area-inset-bottom, 0);
    box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.12);
  }

  .lk-nav a {
    border-bottom: 0;
    border-top: 2px solid transparent;
  }

  .lk-nav a[aria-current=page] {
    border-top-color: var(--pico-primary);
  }

  .copy-field .copy-button {
    width: 100%;
  }

  .qr {
    max-width: 70%;
  }
}

@media (prefers-reduced-motion: reduce) {
  button,
  [role=button],
  a,
  input,
  textarea,
  select,
  summary {
    transition: none;
  }
}