/* ─── Reset & Base ─── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Fixed — never theme-sensitive */
  --white: #ffffff;
  --note-bg: #fefce8;
  --note-border: #fde68a;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 4px 16px rgba(0,0,0,.06);
  --font: 'Inter', system-ui, -apple-system, sans-serif;

  /* ── Theme variables — dark mode defaults ── */

  /* Site chrome */
  --t-accent:                #3b82f6;
  --t-accent-hover:          #2563eb;
  --t-accent-rgb:            59, 130, 246;
  --t-page-bg:               #0f172a;
  --t-page-border:           #1e293b;
  --t-header-bg:             #0f172a;
  --t-header-border:         #1e293b;
  --t-card-bg:               #1e293b;
  --t-card-border:           #334155;
  --t-page-text:             #ffffff;
  --t-page-text-muted:       #94a3b8;

  /* Viewer chrome (top bar) */
  --t-viewer-header-bg:      #0f172a;
  --t-viewer-header-border:  #1e293b;
  --t-viewer-chrome-text:    #ffffff;
  --t-viewer-chrome-muted:   #94a3b8;

  /* Inbox sidebar */
  --t-inbox-bg:              #1e293b;
  --t-sidebar-border:        #334155;
  --t-inbox-item-border:     #334155;
  --t-inbox-item-hover:      #243149;
  --t-inbox-item-active-bg:  rgba(59, 130, 246, .2);
  --t-inbox-overview-bg:     #243149;

  /* Reading pane & email card */
  --t-reading-pane-bg:       #0f172a;
  --t-email-card-bg:         #1e293b;
  --t-email-card-border:     #334155;
  --t-email-card-header-bg:  #243149;

  /* Content text (inside email cards & sidebar) */
  --t-content-text:          #f1f5f9;
  --t-content-text-muted:    #94a3b8;
  --t-content-text-body:     #cbd5e1;
}

/* ── Light mode overrides ── */
@media (prefers-color-scheme: light) {
  :root {
    /* Site chrome */
    --t-accent:                #2563eb;
    --t-accent-hover:          #1d4ed8;
    --t-accent-rgb:            37, 99, 235;
    --t-page-bg:               #f8fafc;
    --t-page-border:           #e2e8f0;
    --t-header-bg:             #ffffff;
    --t-header-border:         #e2e8f0;
    --t-card-bg:               #ffffff;
    --t-card-border:           #e2e8f0;
    --t-page-text:             #0f172a;
    --t-page-text-muted:       #64748b;

    /* Viewer chrome */
    --t-viewer-header-bg:      #ffffff;
    --t-viewer-header-border:  #e2e8f0;
    --t-viewer-chrome-text:    #0f172a;
    --t-viewer-chrome-muted:   #64748b;

    /* Inbox sidebar */
    --t-inbox-bg:              #f1f5f9;
    --t-sidebar-border:        #e2e8f0;
    --t-inbox-item-border:     #f1f5f9;
    --t-inbox-item-hover:      #e8edf3;
    --t-inbox-item-active-bg:  #eff6ff;
    --t-inbox-overview-bg:     #f1f5f9;

    /* Reading pane & email card */
    --t-reading-pane-bg:       #ffffff;
    --t-email-card-bg:         #ffffff;
    --t-email-card-border:     #f1f5f9;
    --t-email-card-header-bg:  #f8fafc;

    /* Content text */
    --t-content-text:          #0f172a;
    --t-content-text-muted:    #64748b;
    --t-content-text-body:     #1e293b;
  }
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--t-page-bg);
  color: var(--t-page-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--t-accent); text-decoration: none; }
a:hover { color: var(--t-accent-hover); }

/* ─── Layout ─── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ─── Header ─── */
.site-header {
  background: var(--t-header-bg);
  padding: 56px 0 64px;
  border-bottom: 1px solid var(--t-header-border);
}

.header-inner { display: flex; flex-direction: row; align-items: center; justify-content: space-between; gap: 24px; }
.header-text { display: flex; flex-direction: column; gap: 12px; }
.header-photo { width: 96px; height: 96px; border-radius: 50%; object-fit: cover; flex-shrink: 0; }
@media (max-width: 768px) { .header-photo { display: none; } }

.site-name {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--t-page-text);
}

.site-tagline {
  font-size: 15px;
  color: var(--t-page-text-muted);
  font-weight: 400;
}

.site-tagline strong {
  color: var(--t-accent);
  font-weight: 500;
}

/* ─── Bio ─── */
.bio-section { padding: 56px 0 48px; border-bottom: 1px solid var(--t-page-border); }

.bio-text {
  max-width: 640px;
  font-size: 16px;
  color: var(--t-page-text-muted);
  line-height: 1.75;
}

.bio-text p + p { margin-top: 12px; }

/* ─── Portfolio Sections ─── */
.portfolio-section { padding: 56px 0; border-bottom: 1px solid var(--t-page-border); }
.portfolio-section:last-of-type { border-bottom: none; }

.section-header {
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 32px;
}

.section-title {
  font-size: 20px;
  font-weight: 600;
  color: var(--t-page-text);
}

.section-count {
  font-size: 13px;
  color: var(--t-page-text-muted);
}

/* ─── Card Grid ─── */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

.card {
  background: var(--t-card-bg);
  border: 1px solid var(--t-card-border);
  border-radius: var(--radius);
  padding: 24px;
  cursor: pointer;
  transition: border-color .15s, transform .15s, box-shadow .15s;
  text-decoration: none;
  display: block;
  color: inherit;
}

.card:hover {
  border-color: var(--t-accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(var(--t-accent-rgb), .12);
  color: inherit;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}

.tag {
  font-size: 11px;
  font-weight: 500;
  color: var(--t-accent);
  background: rgba(var(--t-accent-rgb), .1);
  border: 1px solid rgba(var(--t-accent-rgb), .2);
  border-radius: 4px;
  padding: 2px 8px;
  letter-spacing: .3px;
  text-transform: uppercase;
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--t-page-text);
  margin-bottom: 8px;
  line-height: 1.4;
}

.card-description {
  font-size: 13px;
  color: var(--t-page-text-muted);
  line-height: 1.6;
}

.card-arrow {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 16px;
  font-size: 12px;
  font-weight: 500;
  color: var(--t-accent);
}

/* ─── Placeholder Card ─── */
.card.card--locked {
  cursor: default;
  opacity: .55;
}

.card.card--locked:hover {
  border-color: var(--t-card-border);
  transform: none;
  box-shadow: none;
}

.card-lock {
  font-size: 20px;
  margin-bottom: 10px;
  opacity: .5;
}

/* ─── Footer ─── */
.site-footer {
  padding: 48px 0;
  border-top: 1px solid var(--t-page-border);
  margin-top: 8px;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.footer-cta {
  font-size: 16px;
  color: var(--t-page-text-muted);
}

.footer-email {
  font-size: 14px;
  color: var(--t-accent);
}

/* ════════════════════════════════
   SEQUENCE LIST PAGE
════════════════════════════════ */
.seq-list-section { padding: 56px 0; }

.seq-list-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
  margin-top: 32px;
}

/* ════════════════════════════════
   EMAIL VIEWER PAGE
════════════════════════════════ */
.viewer-body {
  background: var(--t-reading-pane-bg);
  color: var(--t-content-text);
  min-height: 100vh;
}

.viewer-header {
  background: var(--t-viewer-header-bg);
  padding: 16px 24px;
  display: flex;
  align-items: center;
  gap: 20px;
  border-bottom: 1px solid var(--t-viewer-header-border);
}

.viewer-back {
  color: var(--t-viewer-chrome-muted);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  transition: color .15s;
}
.viewer-back:hover { color: var(--t-viewer-chrome-text); }

.viewer-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--t-viewer-chrome-text);
}

.viewer-layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  height: calc(100vh - 57px);
}

/* ─── Inbox Sidebar ─── */
.inbox-sidebar {
  background: var(--t-inbox-bg);
  border-right: 1px solid var(--t-sidebar-border);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
}

.inbox-header {
  padding: 16px 16px 12px;
  font-size: 11px;
  font-weight: 600;
  color: var(--t-content-text-muted);
  letter-spacing: .8px;
  text-transform: uppercase;
  border-bottom: 1px solid var(--t-sidebar-border);
  flex-shrink: 0;
}

.inbox-item {
  padding: 14px 16px;
  border-bottom: 1px solid var(--t-inbox-item-border);
  cursor: pointer;
  transition: background .1s;
  position: relative;
}

.inbox-item:hover { background: var(--t-inbox-item-hover); }

.inbox-item.active {
  background: var(--t-inbox-item-active-bg);
  border-left: 3px solid var(--t-accent);
}

.inbox-item.overview-item { background: var(--t-inbox-overview-bg); }
.inbox-item.overview-item.active { background: var(--t-inbox-item-active-bg); }

.inbox-sender {
  font-size: 13px;
  font-weight: 600;
  color: var(--t-content-text);
  margin-bottom: 2px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.inbox-date {
  font-size: 11px;
  color: var(--t-content-text-muted);
  font-weight: 400;
}

.inbox-subject {
  font-size: 12px;
  font-weight: 500;
  color: var(--t-content-text);
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.inbox-preview {
  font-size: 11px;
  color: var(--t-content-text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ─── Email Reading Pane ─── */
.reading-pane {
  overflow-y: auto;
  padding: 32px;
  background: var(--t-reading-pane-bg);
}

.email-card {
  background: var(--t-email-card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  max-width: 680px;
  margin: 0 auto;
  overflow: hidden;
}

.email-header {
  padding: 24px 28px 20px;
  border-bottom: 1px solid var(--t-email-card-border);
}

.email-meta {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  margin-bottom: 16px;
}

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--t-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 600;
  color: var(--white);
  flex-shrink: 0;
}

.email-meta-text { flex: 1; min-width: 0; }

.email-from {
  font-size: 14px;
  font-weight: 600;
  color: var(--t-content-text);
}

.email-from-address {
  font-size: 12px;
  color: var(--t-content-text-muted);
  font-weight: 400;
}

.email-meta-date {
  font-size: 12px;
  color: var(--t-content-text-muted);
  white-space: nowrap;
  margin-top: 2px;
}

.email-subject {
  font-size: 20px;
  font-weight: 600;
  color: var(--t-content-text);
  line-height: 1.3;
  margin-bottom: 4px;
}

.email-day-label {
  font-size: 11px;
  font-weight: 500;
  color: var(--t-accent);
  background: rgba(var(--t-accent-rgb), .08);
  border-radius: 4px;
  padding: 2px 8px;
  display: inline-block;
  margin-top: 4px;
}

.email-body {
  padding: 28px 28px 32px;
  font-size: 15px;
  color: var(--t-content-text-body);
  line-height: 1.75;
}

.email-body p { margin-bottom: 12px; }
.email-body p:last-child { margin-bottom: 0; }

.email-body h2 {
  font-size: 18px;
  font-weight: 600;
  color: var(--t-content-text) !important; /* overrides any inline style in emails.js */
  margin-bottom: 16px;
}

a.cta-button {
  display: inline-block;
  background: var(--t-accent);
  color: var(--white) !important;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 14px;
  text-decoration: none;
  transition: background .15s;
}

a.cta-button:hover { background: var(--t-accent-hover); }

/* ─── Overview card ─── */
.overview-card .email-header { background: var(--t-email-card-header-bg); }

/* ─── Copywriter's Notes ─── */
.notes-section {
  max-width: 680px;
  margin: 16px auto 32px;
}

.notes-toggle {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--t-content-text-muted);
  user-select: none;
  padding: 8px 0;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.notes-toggle:hover { color: var(--t-content-text); }

.notes-toggle-icon {
  width: 18px;
  height: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--note-border);
  border-radius: 4px;
  font-size: 10px;
  transition: transform .2s;
  flex-shrink: 0;
}

.notes-toggle[aria-expanded="true"] .notes-toggle-icon {
  transform: rotate(90deg);
}

.notes-body {
  background: var(--note-bg);
  border: 1px solid var(--note-border);
  border-radius: var(--radius-sm);
  padding: 20px 24px;
  font-size: 13.5px;
  color: #5c4a0a;
  line-height: 1.75;
  display: none;
}

.notes-body.open { display: block; }
.notes-body p { margin-bottom: 12px; }
.notes-body p:last-child { margin-bottom: 0; }

.notes-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: #92700a;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* ─── Unread / read state ─── */
.inbox-item.unread .inbox-sender > span:first-child,
.inbox-item.unread .inbox-subject {
  font-weight: 700;
  color: var(--t-content-text);
}

.inbox-item:not(.unread) .inbox-sender > span:first-child,
.inbox-item:not(.unread) .inbox-subject {
  font-weight: 400;
  color: var(--t-content-text-muted);
}

/* ─── Mobile ─── */
@media (max-width: 768px) {
  .site-header { padding: 40px 0 48px; }
  .site-name { font-size: 22px; }

  /* Default mobile: inbox fills the screen, reading pane hidden */
  .viewer-layout {
    display: block;
    height: calc(100vh - 57px);
    position: relative;
    overflow: hidden;
  }

  .inbox-sidebar {
    position: absolute;
    inset: 0;
    height: 100%;
    max-height: none;
    border-right: none;
    overflow-y: auto;
    transition: transform .25s ease;
    transform: translateX(0);
    z-index: 2;
  }

  .reading-pane {
    position: absolute;
    inset: 0;
    padding: 16px;
    overflow-y: auto;
    transition: transform .25s ease;
    transform: translateX(100%);
    z-index: 1;
  }

  /* When an email is selected: slide inbox out, reading pane in */
  .viewer-layout.mobile-reading .inbox-sidebar {
    transform: translateX(-100%);
  }

  .viewer-layout.mobile-reading .reading-pane {
    transform: translateX(0);
  }

  .email-body { padding: 20px 20px 24px; }
  .email-header { padding: 20px 20px 16px; }
  .email-subject { font-size: 17px; }
}

@media (max-width: 480px) {
  .card-grid { grid-template-columns: 1fr; }
  .container { padding: 0 16px; }
}