/* ═══════════════════════════════════════════
   TestmailPeek — "Warm Studio" Light Theme
   Palette: warm off-whites + emerald accent
   Typography: Sora (display) + Source Sans 3 (body)
   ═══════════════════════════════════════════ */

:root {
  --pk-bg: #F7F5F0;
  --pk-surface: #FFFEF9;
  --pk-surface-alt: #F0EDE6;
  --pk-border: #E4DFD5;
  --pk-border-strong: #D1CBBD;
  --pk-accent: #059669;
  --pk-accent-soft: #D1FAE5;
  --pk-accent-text: #047857;
  --pk-text: #1A1A2E;
  --pk-text-secondary: #5C5A6E;
  --pk-text-muted: #9B978A;
  --pk-shadow-sm: 0 1px 3px rgba(26, 26, 46, 0.04);
  --pk-shadow-md: 0 4px 16px rgba(26, 26, 46, 0.06);
  --pk-shadow-lg: 0 12px 40px rgba(26, 26, 46, 0.08);
  --pk-radius: 6px;
  --pk-font-display: 'Sora', sans-serif;
  --pk-font-body: 'Source Sans 3', sans-serif;

  /* Element Plus overrides */
  --el-color-primary: var(--pk-accent);
  --el-bg-color: var(--pk-surface);
  --el-bg-color-page: var(--pk-bg);
  --el-text-color-primary: var(--pk-text);
  --el-text-color-regular: var(--pk-text-secondary);
  --el-border-color: var(--pk-border);
  --el-border-color-light: var(--pk-border);
  --el-border-color-lighter: var(--pk-surface-alt);
  --el-fill-color-blank: var(--pk-surface);
  --el-border-radius-base: var(--pk-radius);
  --el-font-family: var(--pk-font-body);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

[v-cloak] { display: none; }

body {
  font-family: var(--pk-font-body);
  background: var(--pk-bg);
  color: var(--pk-text);
  -webkit-font-smoothing: antialiased;
}

/* ═══ TOP COMMAND BAR ═══ */
.pk-topbar {
  height: 72px;
  background: var(--pk-surface);
  border-bottom: 1px solid var(--pk-border);
  display: flex;
  align-items: center;
  padding: 0 28px;
  gap: 24px;
  box-shadow: var(--pk-shadow-sm);
  position: sticky;
  top: 0;
  z-index: 50;
}

.pk-topbar-left { flex-shrink: 0; }

.pk-logo {
  font-family: var(--pk-font-display);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--pk-accent-text);
  letter-spacing: -0.01em;
  user-select: none;
}

.pk-topbar-center {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  max-width: 680px;
  margin: 0 auto;
}

.pk-field { max-width: 240px; }
.pk-field--key { max-width: 320px; }

.pk-fetch-btn {
  font-family: var(--pk-font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.pk-clear-btn {
  height: 38px;
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--pk-border);
  color: var(--pk-text-muted);
  font-family: var(--pk-font-display);
  font-weight: 500;
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  background: var(--pk-surface);
}

.pk-clear-btn:hover {
  background: #FEF2F2;
  border-color: #FCA5A5;
  color: #DC2626;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(220, 38, 38, 0.08);
}

.pk-clear-btn:active {
  transform: translateY(0);
}

.pk-topbar-right { flex-shrink: 0; }

.pk-gh-link {
  font-family: var(--pk-font-display);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--pk-text-muted);
  text-decoration: none;
  padding: 4px 10px;
  border: 1px solid var(--pk-border);
  border-radius: 100px;
  transition: all 0.2s;
}

.pk-gh-link:hover {
  color: var(--pk-accent-text);
  border-color: var(--pk-accent);
  background: var(--pk-accent-soft);
}

/* ═══ WORKSPACE ═══ */
.pk-workspace {
  display: flex;
  height: calc(100vh - 72px);
  height: calc(100dvh - 72px);
  overflow: hidden;
}

/* ─── INBOX ─── */
.pk-inbox {
  width: 340px;
  min-width: 340px;
  background: var(--pk-surface);
  border-right: 1px solid var(--pk-border);
  display: flex;
  flex-direction: column;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

.pk-inbox-title {
  padding: 20px 24px 16px;
  font-family: var(--pk-font-display);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--pk-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: flex;
  align-items: center;
  gap: 10px;
}

.pk-inbox-scroll { flex: 1; }

.pk-mail-list {
  padding: 0 12px 12px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.pk-mail-card {
  display: flex;
  align-items: stretch;
  gap: 0;
  padding: 0;
  border-radius: var(--pk-radius);
  cursor: pointer;
  transition: all 0.25s cubic-bezier(0.22, 1, 0.36, 1);
  overflow: hidden;
  background: transparent;
}

.pk-mail-card:hover {
  background: var(--pk-surface-alt);
}

.pk-mail-card.is-selected {
  background: var(--pk-accent-soft);
}

.pk-mail-card.is-selected .pk-mail-indicator {
  background: var(--pk-accent);
}

.pk-mail-indicator {
  width: 3px;
  min-height: 100%;
  background: transparent;
  border-radius: 2px 0 0 2px;
  transition: background 0.2s;
  flex-shrink: 0;
}

.pk-mail-body {
  padding: 14px 16px;
  min-width: 0;
  flex: 1;
}

.pk-mail-subject {
  font-family: var(--pk-font-display);
  font-weight: 600;
  font-size: 0.92rem;
  color: var(--pk-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 4px;
}

.pk-mail-from {
  font-size: 0.8rem;
  color: var(--pk-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.pk-more-wrap {
  padding: 16px 24px;
  text-align: center;
}

.pk-more-btn {
  font-family: var(--pk-font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
  width: 100%;
}

.pk-inbox-empty {
  padding: 48px 24px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.pk-inbox-empty p {
  font-size: 0.85rem;
  color: var(--pk-text-muted);
}

/* ─── READER ─── */
.pk-reader {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background: var(--pk-bg);
}

.pk-reader-back {
  padding: 12px 20px;
  font-family: var(--pk-font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--pk-accent-text);
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  border-bottom: 1px solid var(--pk-border);
  background: var(--pk-surface);
}

.pk-reader-head {
  padding: 32px 48px 28px;
  background: var(--pk-surface);
  border-bottom: 1px solid var(--pk-border);
  box-shadow: var(--pk-shadow-sm);
  animation: fadeDown 0.35s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes fadeDown {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

.pk-subject {
  font-family: var(--pk-font-display);
  font-size: clamp(1.4rem, 3vw, 2rem);
  font-weight: 700;
  color: var(--pk-text);
  letter-spacing: -0.02em;
  line-height: 1.25;
  margin-bottom: 20px;
}

.pk-meta-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.pk-meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 5px 14px;
  background: var(--pk-bg);
  border: 1px solid var(--pk-border);
  border-radius: 100px;
  font-size: 0.82rem;
  transition: border-color 0.2s;
}

.pk-meta-chip:hover {
  border-color: var(--pk-border-strong);
}

.pk-chip-key {
  font-family: var(--pk-font-display);
  font-weight: 600;
  color: var(--pk-text-muted);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.pk-chip-val {
  color: var(--pk-text-secondary);
}

.pk-attachments {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--pk-border);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pk-att-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--pk-accent-soft);
  color: var(--pk-accent-text);
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  border-radius: 100px;
  transition: all 0.2s;
}

.pk-att-pill:hover {
  background: var(--pk-accent);
  color: #fafaf8;
}

.pk-att-size {
  color: var(--pk-text-muted);
  font-size: 0.72rem;
}

.pk-att-pill:hover .pk-att-size { color: rgba(255,255,255,0.7); }

/* Reader Body */
.pk-reader-body {
  flex: 1;
  padding: 32px 48px;
  overflow-y: auto;
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.pk-html-banner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 20px;
  background: #FEF9C3;
  border: 1px solid #FDE68A;
  border-radius: var(--pk-radius);
  margin-bottom: 20px;
  font-size: 0.88rem;
  color: #92400E;
  animation: fadeIn 0.3s ease;
}

.pk-html-banner span:first-child { flex: 1; }

.pk-render-frame {
  background: var(--pk-surface);
  border: 1px solid var(--pk-border);
  border-radius: var(--pk-radius);
  box-shadow: var(--pk-shadow-md);
  min-height: 400px;
  height: calc(100% - 20px);
  overflow: hidden;
}

.pk-iframe {
  width: 100%;
  height: 100%;
  border: none;
  background: #fefefe;
}

.pk-plaintext {
  padding: 32px;
  font-family: var(--pk-font-body);
  font-size: 0.95rem;
  line-height: 1.7;
  white-space: pre-wrap;
  word-break: break-word;
  color: var(--pk-text-secondary);
  margin: 0;
}

/* Empty State */
.pk-reader-empty {
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  animation: fadeIn 0.5s ease;
}

.pk-empty-hex {
  font-size: 4rem;
  color: var(--pk-border);
  animation: pulse-hex 3s ease-in-out infinite;
}

@keyframes pulse-hex {
  0%, 100% { transform: scale(1) rotate(0deg); opacity: 0.4; }
  50% { transform: scale(1.1) rotate(30deg); opacity: 0.7; }
}

.pk-reader-empty p {
  font-family: var(--pk-font-display);
  font-size: 0.95rem;
  color: var(--pk-text-muted);
  font-weight: 500;
}

/* List Animations */
.slide-up-enter-active {
  transition: all 0.4s cubic-bezier(0.22, 1, 0.36, 1);
  transition-delay: calc(var(--idx, 0) * 40ms);
}
.slide-up-leave-active {
  transition: all 0.25s ease;
}
.slide-up-enter-from {
  opacity: 0;
  transform: translateY(16px);
}
.slide-up-leave-to {
  opacity: 0;
  transform: translateX(-20px);
}

/* ═══ RESPONSIVE ═══ */
@media screen and (max-width: 768px) {
  .pk-topbar {
    padding: 0 12px;
    gap: 8px;
  }

  .pk-topbar-center {
    flex-wrap: wrap;
    gap: 6px;
  }

  .pk-field, .pk-field--key {
    max-width: 100%;
    flex: 1;
    min-width: 100px;
  }

  .pk-gh-link { display: none; }

  .pk-workspace {
    position: relative;
  }

  .pk-inbox {
    width: 100%;
    min-width: 100%;
    position: absolute;
    inset: 0;
    z-index: 10;
  }

  .pk-inbox.is-collapsed {
    transform: translateX(-100%);
  }

  .pk-reader {
    width: 100%;
    position: absolute;
    inset: 0;
    transform: translateX(100%);
    background: var(--pk-surface);
  }

  .pk-reader.is-open {
    transform: translateX(0);
  }

  .pk-reader-head {
    padding: 24px 20px 20px;
  }

  .pk-subject {
    font-size: 1.3rem;
    margin-bottom: 16px;
  }

  .pk-reader-body {
    padding: 20px;
  }
}

@media screen and (min-width: 769px) and (max-width: 1024px) {
  .pk-inbox {
    width: 280px;
    min-width: 280px;
  }
  .pk-reader-head { padding: 28px 32px; }
  .pk-reader-body { padding: 24px 32px; }
}

@media screen and (min-width: 1400px) {
  .pk-inbox {
    width: 380px;
    min-width: 380px;
  }
}