/* ==========================================================================
   TempMail — design system
   One accent, a neutral slate scale, system fonts, no build step.
   Shared by the public site, the sign-in page and the admin panel.
   ========================================================================== */

:root {
  color-scheme: light dark;

  /* accent */
  --accent:        #4f46e5;
  --accent-hover:  #4338ca;
  --accent-ink:    #ffffff;
  --accent-soft:   #eef2ff;
  --accent-border: #c7d2fe;

  /* neutrals */
  --bg:          #f5f6fa;
  --bg-sunk:     #eef0f5;
  --surface:     #ffffff;
  --surface-2:   #f9fafc;
  --border:      #e3e7ee;
  --border-soft: #edf0f5;
  --ink:         #0f172a;
  --ink-soft:    #475069;
  --ink-muted:   #6b7488;

  /* status */
  --ok:          #0f7a44;
  --ok-soft:     #e8f6ee;
  --warn:        #9a5b00;
  --warn-soft:   #fdf3e2;
  --danger:      #b42318;
  --danger-soft: #fdeceb;
  --highlight:   #fff8dd;

  /* shape */
  --radius:    10px;
  --radius-lg: 16px;
  --tap:       44px;
  --container: 1140px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, .06), 0 1px 1px rgba(15, 23, 42, .04);
  --shadow-md: 0 6px 20px rgba(15, 23, 42, .08), 0 1px 3px rgba(15, 23, 42, .05);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, .22);
}

@media (prefers-color-scheme: dark) {
  :root {
    --accent:        #8b93ff;
    --accent-hover:  #a5abff;
    --accent-ink:    #10132b;
    --accent-soft:   #1b2140;
    --accent-border: #2f3868;

    --bg:          #0b0e14;
    --bg-sunk:     #0f131b;
    --surface:     #14181f;
    --surface-2:   #171c25;
    --border:      #262c38;
    --border-soft: #1e242e;
    --ink:         #e9edf4;
    --ink-soft:    #b3bccd;
    --ink-muted:   #8a94a8;

    --ok:          #56d394;
    --ok-soft:     #10261c;
    --warn:        #e5b567;
    --warn-soft:   #2a2113;
    --danger:      #ff8a80;
    --danger-soft: #2c1817;
    --highlight:   #2b2717;

    --shadow-sm: 0 1px 2px rgba(0, 0, 0, .4);
    --shadow-md: 0 6px 20px rgba(0, 0, 0, .45);
    --shadow-lg: 0 24px 60px rgba(0, 0, 0, .6);
  }
}

* { box-sizing: border-box; }

/* Any class that sets `display` would otherwise beat the browser's [hidden]
   rule, leaving hidden elements on screen. */
[hidden] { display: none !important; }

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

body {
  margin: 0;
  padding: 0 0 env(safe-area-inset-bottom);
  background: var(--bg);
  color: var(--ink);
  font: 400 16px/1.55 -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto,
        "Helvetica Neue", Arial, "Noto Sans", sans-serif;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent); }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 20px;
}

.mono {
  font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;
  font-size: 0.92em;
}

.muted { color: var(--ink-muted); }
.hint  { color: var(--ink-muted); font-size: 13px; margin: 0; }
.hint.bad  { color: var(--danger); }
.hint.good { color: var(--ok); }
.lede { color: var(--ink-soft); font-size: 15px; margin: 0 0 14px; }

/* ---------------------------------------------------------------- topbar -- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

.topbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  max-width: var(--container);
  min-height: 62px;
  margin: 0 auto;
  padding: 8px 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  font-weight: 680;
  font-size: 17px;
  letter-spacing: -0.015em;
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 15px;
  line-height: 1;
  box-shadow: 0 4px 12px color-mix(in srgb, var(--accent) 35%, transparent);
}

.topbar-actions {
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 6px;
}

.user-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 12px 0 5px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--ink);
  font-size: 14.5px;
  font-weight: 600;
  text-decoration: none;
}

.user-chip:hover { border-color: var(--accent-border); }

.user-avatar {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 13px;
  font-weight: 700;
}

.user-name { max-width: 14ch; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.impersonation-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 8px 14px;
  padding: 8px 16px;
  background: var(--warn-soft);
  border-bottom: 1px solid color-mix(in srgb, var(--warn) 35%, transparent);
  color: var(--warn);
  font-size: 14px;
}

.impersonation-bar .btn { min-height: 34px; font-size: 13.5px; }

/* --------------------------------------------------------------- buttons -- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  min-height: var(--tap);
  min-width: var(--tap);
  padding: 0 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  font-weight: 580;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: background .14s ease, border-color .14s ease, color .14s ease, transform .06s ease;
  -webkit-tap-highlight-color: transparent;
}

.btn:hover { border-color: var(--accent-border); color: var(--accent); }
.btn:active { transform: translateY(1px); }
.btn:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.btn[disabled] { opacity: .45; cursor: not-allowed; box-shadow: none; }
.btn[disabled]:hover { border-color: var(--border); color: var(--ink); }

.btn.primary { background: var(--accent); border-color: transparent; color: var(--accent-ink); }
.btn.primary:hover { background: var(--accent-hover); color: var(--accent-ink); }

.btn.danger { color: var(--danger); }
.btn.danger:hover { border-color: var(--danger); color: var(--danger); }
.btn.danger:not(.subtle) { border-color: color-mix(in srgb, var(--danger) 40%, transparent); }

.btn.subtle { background: transparent; border-color: transparent; box-shadow: none; color: var(--ink-soft); }
.btn.subtle:hover { background: var(--accent-soft); color: var(--accent); border-color: transparent; }
.btn.subtle.danger { color: var(--danger); }
.btn.subtle.danger:hover { background: var(--danger-soft); }

.btn.small { min-height: 36px; padding: 0 12px; font-size: 14px; }
.btn.big   { width: 100%; min-height: 50px; font-size: 16px; }
.btn.block { display: flex; width: 100%; }

.inline-form { display: inline-flex; margin: 0; }

/* ------------------------------------------------------------------ hero -- */
.hero-band {
  padding: 26px 0 30px;
  background:
    radial-gradient(1200px 300px at 50% -80px, color-mix(in srgb, var(--accent) 16%, transparent), transparent 70%),
    linear-gradient(180deg, var(--accent-soft), var(--bg));
  border-bottom: 1px solid var(--border-soft);
}

.hero {
  display: grid;
  gap: 16px;
  padding: 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  box-shadow: var(--shadow-md);
}

.hero-empty { text-align: center; justify-items: center; padding: 34px 22px; }
.hero-title { margin: 0; font-size: 22px; letter-spacing: -0.02em; }
.expired-note { color: var(--ink-soft); margin: 0; }
.hero-empty .inline-form { width: min(100%, 360px); }

.label {
  margin: 0 0 10px;
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.address-box {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 10px 10px 18px;
  background: var(--bg-sunk);
  border: 1px solid var(--border-soft);
  border-radius: 14px;
}

.address {
  flex: 1;
  min-width: 0;
  font-size: clamp(18px, 4.6vw, 28px);
  font-weight: 680;
  letter-spacing: -0.02em;
  overflow-wrap: anywhere;
  user-select: all;
}

.copy-btn { flex: 0 0 auto; min-width: 88px; }
.copy-btn.copied { background: var(--ok); border-color: transparent; color: #fff; }

.meta-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.countdown,
.saved-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 580;
  font-variant-numeric: tabular-nums;
}

.countdown { background: var(--accent-soft); border: 1px solid var(--accent-border); color: var(--accent); }
.saved-chip { background: var(--ok-soft); border: 1px solid color-mix(in srgb, var(--ok) 35%, transparent); color: var(--ok); }

.countdown::before,
.saved-chip::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: currentColor;
}

.countdown.urgent {
  background: var(--danger-soft);
  border-color: color-mix(in srgb, var(--danger) 35%, transparent);
  color: var(--danger);
}

.keep-note {
  margin: 14px 0 0;
  padding: 10px 14px;
  border-radius: var(--radius);
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  color: var(--ink-soft);
  font-size: 14px;
}

.keep-note a { font-weight: 650; }

/* ---------------------------------------------------------------- custom -- */
.custom { border-top: 1px solid var(--border-soft); padding-top: 6px; }

.custom summary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 40px;
  cursor: pointer;
  color: var(--accent);
  font-weight: 600;
  font-size: 15px;
}

.custom summary::marker { content: ""; }
.custom summary::-webkit-details-marker { display: none; }
.custom summary::after { content: "▾"; font-size: 12px; opacity: .8; }
.custom[open] summary::after { content: "▴"; }

.custom-form { display: grid; gap: 12px; margin: 6px 0 4px; max-width: 560px; }

.custom-input {
  display: flex;
  align-items: center;
  background: var(--bg-sunk);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color .14s ease, box-shadow .14s ease;
}

.custom-input:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.custom-input input {
  flex: 1;
  min-width: 0;
  min-height: var(--tap);
  padding: 0 13px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
}

.custom-input input:focus { outline: none; }
.custom-input .suffix { padding: 0 13px; color: var(--ink-muted); white-space: nowrap; font-size: 15px; }
.custom-form .btn { justify-self: start; }

/* ------------------------------------------------------------- install -- */
.install-banner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px 12px;
  margin: 14px 0 0;
  padding: 12px 14px;
  background: var(--surface);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.install-icon { flex: 0 0 auto; width: 40px; height: 40px; border-radius: 10px; }
.install-text { flex: 1 1 220px; min-width: 0; font-size: 14.5px; color: var(--ink-soft); }
.install-actions { display: inline-flex; gap: 4px; margin-left: auto; }

/* ---------------------------------------------------------------- layout -- */
.layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 320px;
  gap: 22px;
  align-items: start;
  padding-top: 24px;
  padding-bottom: 40px;
}

.side { display: grid; gap: 18px; position: sticky; top: 82px; }

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}

.panel-head {
  display: grid;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border-soft);
}

.panel-title-row { display: flex; align-items: center; gap: 10px; }

.panel-title {
  margin: 0;
  font-size: 16px;
  font-weight: 680;
  letter-spacing: -0.01em;
}

.panel-title-row .panel-title { flex: 1; }

.panel-count {
  padding: 2px 9px;
  border-radius: 999px;
  background: var(--bg-sunk);
  color: var(--ink-muted);
  font-size: 12.5px;
  font-weight: 650;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
}

.tabs {
  display: inline-flex;
  max-width: 100%;
  overflow-x: auto;
  scrollbar-width: none;
  gap: 2px;
  padding: 3px;
  background: var(--bg-sunk);
  border: 1px solid var(--border-soft);
  border-radius: 11px;
}

.tab {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 34px;
  padding: 0 12px;
  border-radius: 8px;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  white-space: nowrap;
}

.tab:hover { color: var(--accent); }
.tab.is-active { background: var(--surface); color: var(--ink); box-shadow: var(--shadow-sm); }

.tab-count {
  min-width: 22px;
  padding: 0 6px;
  border-radius: 999px;
  background: var(--border-soft);
  color: var(--ink-muted);
  font-size: 12px;
  font-weight: 700;
  line-height: 20px;
  text-align: center;
}

.tab.is-active .tab-count { background: var(--accent-soft); color: var(--accent); }

.search { position: relative; display: flex; flex: 1 1 220px; max-width: 340px; margin: 0; }

.search input {
  width: 100%;
  min-height: 38px;
  padding: 0 34px 0 36px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--surface) no-repeat 12px 50% / 15px
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7488' stroke-width='2.2' stroke-linecap='round'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='m20 20-3.5-3.5'/%3E%3C/svg%3E");
  color: var(--ink);
  font: inherit;
  font-size: 14.5px;
}

.search input::-webkit-search-cancel-button { display: none; }

.search input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.search-clear {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  color: var(--ink-muted);
  font-size: 18px;
  text-decoration: none;
}

.search-clear:hover { background: var(--bg-sunk); color: var(--ink); }

.side .search { max-width: none; }

.new-mail {
  padding: 4px 11px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 13px;
  font-weight: 650;
  text-decoration: none;
  animation: pop-in .3s ease-out;
}

@keyframes pop-in { from { transform: scale(.85); opacity: 0; } to { transform: none; opacity: 1; } }

/* ------------------------------------------------------------- messages -- */
.message-list { list-style: none; margin: 0; padding: 0; }
.message-list.is-empty { display: none; }

.message { border-bottom: 1px solid var(--border-soft); }
.message:last-child { border-bottom: 0; }
.message.new { animation: flash-in 1.8s ease-out; }

@keyframes flash-in {
  0%   { background: var(--highlight); }
  100% { background: transparent; }
}

.message-link {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr) auto;
  align-items: start;
  gap: 12px;
  padding: 14px 16px;
  min-height: var(--tap);
  text-decoration: none;
  color: inherit;
  position: relative;
}

.message-link:hover { background: var(--surface-2); }
.message-link:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; }
.message.unread .message-link::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 3px;
  border-radius: 0 3px 3px 0;
  background: var(--accent);
}

.avatar {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent-soft);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
}

.message-body { min-width: 0; display: grid; gap: 1px; }
.message-top { display: flex; justify-content: space-between; gap: 10px; align-items: baseline; }
.sender { font-weight: 600; font-size: 15px; min-width: 0; }
.sender, .subject, .snippet { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.subject { color: var(--ink-soft); font-size: 14.5px; }
.snippet { color: var(--ink-muted); font-size: 13.5px; }
.time { color: var(--ink-muted); font-size: 12.5px; white-space: nowrap; flex: 0 0 auto; }

.message-flags { display: flex; flex-direction: column; align-items: center; gap: 8px; padding-top: 4px; }
.clip {
  width: 14px;
  height: 14px;
  background: no-repeat center / contain
    url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%236b7488' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m21.4 11.1-9.2 9.2a6 6 0 0 1-8.5-8.5l9.2-9.2a4 4 0 0 1 5.7 5.7l-9.2 9.2a2 2 0 0 1-2.8-2.8l8.5-8.5'/%3E%3C/svg%3E");
}
.dot { width: 9px; height: 9px; border-radius: 50%; background: transparent; }
.message.unread .dot { background: var(--accent); }
.message.unread .subject { color: var(--ink); font-weight: 600; }
.message.unread .sender { font-weight: 720; }

.empty-state {
  display: grid;
  justify-items: center;
  gap: 4px;
  padding: 46px 16px;
  color: var(--ink-muted);
  text-align: center;
}

.empty-title { margin: 6px 0 0; color: var(--ink-soft); font-weight: 600; }

.pulse {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 45%, transparent);
  animation: pulse 1.8s ease-out infinite;
}

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 45%, transparent); }
  100% { box-shadow: 0 0 0 16px transparent; }
}

/* ----------------------------------------------------------------- pager -- */
.pager {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 12px 16px;
  border-top: 1px solid var(--border-soft);
  background: var(--surface-2);
}

.pager-info { color: var(--ink-muted); font-size: 13.5px; font-variant-numeric: tabular-nums; }
.pager-links { display: inline-flex; align-items: center; gap: 4px; flex-wrap: wrap; }

.pager-btn {
  display: inline-grid;
  place-items: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  border: 1px solid var(--border);
  border-radius: 9px;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  font-variant-numeric: tabular-nums;
}

a.pager-btn:hover { border-color: var(--accent-border); color: var(--accent); }
.pager-btn.is-current { background: var(--accent); border-color: transparent; color: var(--accent-ink); }
.pager-btn.is-disabled { opacity: .4; }
.pager-gap { padding: 0 2px; color: var(--ink-muted); }

/* --------------------------------------------------------- saved (side) -- */
.saved-list { list-style: none; margin: 0; padding: 6px; }

.saved-item {
  position: relative;
  border-radius: 12px;
}

.saved-item + .saved-item { margin-top: 2px; }
.saved-open-form { margin: 0; }

.saved-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2px 10px;
  width: 100%;
  padding: 10px 40px 10px 12px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: transparent;
  color: inherit;
  font: inherit;
  text-align: left;
  cursor: pointer;
}

.saved-row:hover { background: var(--surface-2); border-color: var(--border-soft); }
.saved-item.is-current .saved-row { background: var(--accent-soft); border-color: var(--accent-border); }
.saved-row:focus-visible { outline: 2px solid var(--accent); outline-offset: 1px; }

.saved-address {
  grid-column: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 620;
  font-size: 14.5px;
}

.saved-item.is-current .saved-address { color: var(--accent); }
.saved-meta { grid-column: 1; color: var(--ink-muted); font-size: 12.5px; }

.badge {
  grid-column: 2;
  grid-row: 1 / span 2;
  align-self: center;
  min-width: 22px;
  padding: 0 7px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 12px;
  font-weight: 700;
  line-height: 22px;
  text-align: center;
}

.saved-delete {
  position: absolute;
  top: 10px;
  right: 8px;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  border-radius: 8px;
  color: var(--ink-muted);
  font-size: 18px;
  line-height: 1;
  text-decoration: none;
  opacity: .55;
}

.saved-item:hover .saved-delete,
.saved-delete:focus-visible { opacity: 1; }
.saved-delete:hover { background: var(--danger-soft); color: var(--danger); }

.saved-item .confirm-bar { margin: 6px 4px 8px; }
.side-empty { margin: 0; padding: 18px 16px; color: var(--ink-muted); font-size: 14px; }
.side .pager { padding: 10px 12px; justify-content: center; }
.side .pager-info { width: 100%; text-align: center; }

.promo {
  padding: 20px;
  background:
    radial-gradient(400px 160px at 100% 0, color-mix(in srgb, var(--accent) 18%, transparent), transparent 70%),
    var(--surface);
  display: grid;
  gap: 10px;
}

.promo-title { margin: 0; font-size: 18px; letter-spacing: -0.015em; }
.promo-list { margin: 0 0 6px; padding: 0; list-style: none; display: grid; gap: 7px; color: var(--ink-soft); font-size: 14.5px; }
.promo-list li { display: flex; gap: 9px; align-items: baseline; }
.promo-list li::before { content: "✓"; color: var(--ok); font-weight: 800; }

.how { padding: 16px; }
.how .panel-title { margin-bottom: 10px; }
.how-list { margin: 0; padding-left: 20px; display: grid; gap: 6px; color: var(--ink-soft); font-size: 14px; }

/* ----------------------------------------------------------- feedback -- */
.flash {
  margin: 0 0 14px;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--surface);
  font-size: 14.5px;
  box-shadow: var(--shadow-sm);
}

.flash-ok    { border-color: color-mix(in srgb, var(--ok) 40%, transparent);     background: var(--ok-soft);     color: var(--ok); }
.flash-error { border-color: color-mix(in srgb, var(--danger) 40%, transparent); background: var(--danger-soft); color: var(--danger); }

.confirm-bar {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 11px 13px;
  margin: 12px 16px;
  border: 1px solid color-mix(in srgb, var(--danger) 45%, transparent);
  border-radius: var(--radius);
  background: var(--danger-soft);
  color: var(--ink);
  font-size: 14.5px;
}

/* ---------------------------------------------------------------- reader -- */
.reader, .modal-card {
  background: var(--surface);
  padding: 16px;
}

.reader { border-top: 1px solid var(--border); }

.reader-head, .modal-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin: -4px -4px 10px;
}

.modal-actions { display: flex; gap: 2px; }

.reader-subject {
  margin: 6px 0 6px;
  font-size: 20px;
  font-weight: 680;
  letter-spacing: -0.015em;
  line-height: 1.32;
  overflow-wrap: anywhere;
}

.reader-meta { margin: 0 0 14px; color: var(--ink-muted); font-size: 13.5px; overflow-wrap: anywhere; }

.otp-chip {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: var(--tap);
  padding: 0 16px;
  margin: 0 0 14px;
  border: 1px solid var(--accent-border);
  border-radius: var(--radius);
  background: var(--accent-soft);
  color: var(--accent);
  font: inherit;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
}

.otp-chip:hover { border-color: var(--accent); }
.otp-chip.copied { background: var(--ok-soft); border-color: var(--ok); color: var(--ok); }
.otp-chip strong { font-variant-numeric: tabular-nums; letter-spacing: 0.09em; }

.reader-frame {
  width: 100%;
  min-height: 360px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: #fff;
}

.raw { margin-top: 14px; }

.raw summary {
  min-height: var(--tap);
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--ink-muted);
  font-size: 13.5px;
}

.raw-source {
  max-height: 320px;
  overflow: auto;
  padding: 12px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: var(--bg-sunk);
  font: 12px/1.55 ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

/* ----------------------------------------------------------------- modal -- */
.modal {
  position: fixed;
  inset: 0;
  z-index: 30;
  background: rgba(8, 11, 18, .55);
  overflow-y: auto;
  -webkit-backdrop-filter: blur(3px);
  backdrop-filter: blur(3px);
}

.modal .modal-card {
  margin: 0;
  min-height: 100%;
  padding: 14px 16px calc(28px + env(safe-area-inset-bottom));
}

@media (min-width: 760px) {
  .modal { padding: 48px 16px; }
  .modal .modal-card {
    max-width: 820px;
    margin: 0 auto;
    min-height: 0;
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    padding: 18px 22px 24px;
  }
  .reader-frame { min-height: 480px; }
}

/* ---------------------------------------------------------------- footer -- */
.footer { padding: 6px 0 44px; color: var(--ink-muted); font-size: 13px; }
.footer p { margin: 0; }

/* ----------------------------------------------------- cards and forms -- */
/* Shared by the sign-in page and the admin panel. */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 20px;
  margin-bottom: 18px;
}

.card-narrow { max-width: 440px; margin-inline: auto; }

.card-title {
  margin: 0;
  font-size: 16px;
  font-weight: 680;
  letter-spacing: -0.01em;
}

.auth-page { padding-top: 40px; padding-bottom: 60px; }
.auth-card { padding: 26px; box-shadow: var(--shadow-md); }
.auth-card .card-title { font-size: 22px; margin-bottom: 8px; }
.auth-card .field input { max-width: none; }
.auth-switch { margin: 16px 0 6px; font-size: 14.5px; color: var(--ink-soft); }
.auth-switch a { font-weight: 650; }

.stack { display: grid; gap: 4px; }

.field { display: grid; gap: 5px; margin: 0 0 14px; }
.field-label { font-size: 14px; font-weight: 600; }

.field input,
.field select {
  min-height: var(--tap);
  padding: 0 13px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 15px;
  max-width: 320px;
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.field input:disabled { background: var(--bg-sunk); color: var(--ink-muted); cursor: not-allowed; }
.field-help  { font-size: 13px; color: var(--ink-muted); }
.field-error { font-size: 13px; color: var(--danger); font-weight: 580; }

.form-actions { margin-top: 8px; }

/* ------------------------------------------------------------ responsive -- */
@media (max-width: 979px) {
  .layout { grid-template-columns: minmax(0, 1fr); }
  .side { position: static; }
}

@media (max-width: 560px) {
  .container, .topbar-inner { padding-left: 14px; padding-right: 14px; }
  .hero-band { padding: 16px 0 20px; }
  .hero { padding: 16px; border-radius: 16px; }
  .address-box { padding: 8px 8px 8px 14px; }
  .copy-btn { min-width: 0; }
  .field input, .field select { max-width: none; }
  .toolbar { flex-direction: column; align-items: stretch; }
  .search { max-width: none; flex: 0 0 auto; }   /* in a column, a flex-basis would become its height */
  .hide-sm, .user-name { display: none; }
  .user-chip { padding: 0 5px; }
  .topbar-actions .btn.primary { padding: 0 12px; }
  .pager { justify-content: center; }
  .pager-info { width: 100%; text-align: center; }
}

@media (prefers-reduced-motion: reduce) {
  .message.new, .pulse, .new-mail { animation: none; }
  .btn:active { transform: none; }
  * { transition: none !important; }
}