/* frontend/styles/app.css — layout + components */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  max-width: 720px;
  margin: 0 auto;
}

.wordmark {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--paper);
  text-decoration: none;
  display: flex;
  align-items: baseline;
  gap: 0.3em;
}
.wordmark::after {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--ember);
  display: inline-block;
  margin-left: 2px;
}

.site-nav a {
  color: var(--mist);
  text-decoration: none;
  font-size: 0.9rem;
  margin-left: var(--space-3);
}
.site-nav a:hover { color: var(--paper); }

.burn-column {
  max-width: 560px;
  margin: 0 auto;
  padding: var(--space-4) var(--space-3) var(--space-5);
}

.card {
  background: var(--ink-raised);
  border: 1px solid rgba(139, 147, 161, 0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  transition: opacity 0.6s ease, filter 0.6s ease, transform 0.6s ease;
}

.card.is-dissolving {
  opacity: 0;
  filter: blur(6px);
  transform: translateY(-12px);
  pointer-events: none;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mist);
  margin-bottom: var(--space-1);
}

/* --- Option groups (mode / TTL pickers) --- */
.option-group {
  display: flex;
  gap: var(--space-1);
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}

.option-btn {
  background: transparent;
  border: 1px solid var(--smoke);
  color: var(--mist);
  border-radius: var(--radius-md);
  padding: 0.6rem 1rem;
  font-size: 0.9rem;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.option-btn:hover { color: var(--paper); border-color: var(--mist); }
.option-btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--verdigris);
  border-color: var(--verdigris);
}

label {
  display: block;
  font-size: 0.85rem;
  color: var(--mist);
  margin-bottom: 0.4rem;
}

input[type="text"], select, textarea {
  width: 100%;
  background: var(--ink);
  border: 1px solid var(--smoke);
  color: var(--paper);
  border-radius: var(--radius-md);
  padding: 0.7rem 0.9rem;
  font-family: var(--font-mono);
  font-size: 0.95rem;
  margin-bottom: var(--space-3);
}
textarea { font-family: var(--font-mono); min-height: 6rem; resize: vertical; }

.field-row { margin-bottom: var(--space-2); }

.advanced-toggle {
  background: none;
  border: none;
  color: var(--mist);
  font-size: 0.85rem;
  padding: 0;
  margin-bottom: var(--space-2);
  text-decoration: underline;
  text-underline-offset: 3px;
}
.advanced-toggle:hover { color: var(--paper); }

.primary-btn {
  width: 100%;
  background: var(--ember);
  color: var(--ink);
  border: none;
  border-radius: var(--radius-md);
  padding: 0.9rem 1.2rem;
  font-size: 1rem;
  font-weight: 600;
  transition: filter 0.15s, transform 0.1s;
}
.primary-btn:hover { filter: brightness(1.08); }
.primary-btn:active { transform: scale(0.99); }
.primary-btn:disabled { opacity: 0.6; cursor: not-allowed; }

.error-text {
  color: var(--ember);
  font-size: 0.85rem;
  min-height: 1.2em;
  margin-top: var(--space-1);
}

/* --- Inbox view --- */
.inbox-header {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}

.address-display {
  font-family: var(--font-mono);
  font-size: 1.1rem;
  word-break: break-all;
}

.address-row {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: var(--space-3);
}

.icon-btn {
  background: transparent;
  border: 1px solid var(--smoke);
  color: var(--mist);
  border-radius: var(--radius-sm);
  padding: 0.4rem 0.7rem;
  font-size: 0.8rem;
  position: relative;
}
.icon-btn:hover { color: var(--paper); border-color: var(--mist); }

.copy-confirm {
  font-size: 0.75rem;
  color: var(--verdigris);
  opacity: 0;
  transition: opacity 0.25s ease;
}
.copy-confirm.is-visible { opacity: 1; }

/* --- TTL ring --- */
.ttl-ring-wrap {
  position: relative;
  width: 64px; height: 64px;
  flex-shrink: 0;
}
.ttl-ring { transform: rotate(-90deg); }
.ttl-ring-track { fill: none; stroke: rgba(139,147,161,0.2); stroke-width: 6; }
.ttl-ring-progress {
  fill: none;
  stroke: var(--verdigris);
  stroke-width: 6;
  stroke-linecap: round;
  transition: stroke-dashoffset 1s linear, stroke 0.4s ease;
}
.ttl-ring-progress.is-critical { stroke: var(--ember); }
.ttl-countdown-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--paper);
}

.burn-now-btn {
  margin-left: auto;
  background: transparent;
  border: 1px solid var(--ember);
  color: var(--ember);
  border-radius: var(--radius-md);
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
  font-weight: 600;
}
.burn-now-btn:hover { background: var(--ember); color: var(--ink); }

.banner {
  background: rgba(232, 98, 44, 0.12);
  border: 1px solid rgba(232, 98, 44, 0.3);
  color: var(--paper);
  border-radius: var(--radius-md);
  padding: var(--space-2);
  font-size: 0.85rem;
  margin-bottom: var(--space-3);
}

#message-list { list-style: none; margin: 0; padding: 0; }

.message-row { border-bottom: 1px solid rgba(139,147,161,0.15); }
.message-row:last-child { border-bottom: none; }

.message-row__btn {
  width: 100%;
  background: none;
  border: none;
  text-align: left;
  padding: var(--space-2) 0;
  color: var(--paper);
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 0.2rem 0.8rem;
  position: relative;
}
.message-row__from { font-family: var(--font-mono); font-size: 0.8rem; color: var(--mist); grid-column: 1 / 2; }
.message-row__subject { font-weight: 600; grid-column: 1 / 2; }
.message-row__preview { color: var(--mist); font-size: 0.85rem; grid-column: 1 / 3; }
.message-row__time { font-family: var(--font-mono); font-size: 0.75rem; color: var(--mist); grid-row: 1; grid-column: 2; }
.unread-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--verdigris); grid-row: 1; grid-column: 3; align-self: center; }

.message-row__body {
  padding: 0 0 var(--space-2);
  white-space: pre-wrap;
  color: var(--paper);
  font-size: 0.9rem;
}

.empty-state {
  text-align: center;
  padding: var(--space-4) 0;
  color: var(--mist);
}

/* --- Address materialize effect --- */
.is-materializing {
  color: var(--verdigris);
}
.is-materializing::after {
  content: '▍';
  animation: blink 0.9s steps(1) infinite;
  margin-left: 2px;
}
@keyframes blink { 50% { opacity: 0; } }

/* --- Footer --- */
.site-footer {
  text-align: center;
  color: var(--mist);
  font-size: 0.8rem;
  padding: var(--space-4) var(--space-3);
}
.site-footer a { color: var(--mist); }

@media (max-width: 480px) {
  h1 { font-size: var(--step-3); }
  .burn-column { padding: var(--space-3) var(--space-2) var(--space-4); }
}