:root {
  --color-primario: #D63560;
  --color-secundario: #CF9F60;
  --color-terciario: #9E2942;
  --Color-black: #141516;
  --color-white: #FAF9F6;

  --color-primario-75: #D6356075;
  --color-secundario-75: #CF9F6075;
  --color-terciario-75: #9E294275;
  --color-primario-50: #D6356050;
  --color-secundario-50: #CF9F6050;
  --color-terciario-50: #9E294250;
  --color-primario-25: #D6356025;
  --color-secundario-25: #CF9F6025;
  --color-terciario-25: #9E294225;
  --color-primario-10: #D635600A;
  --color-secundario-10: #CF9F600A;

  --font-family: 'Montserrat', sans-serif;
  --font-family2: 'cocogoose', 'Montserrat', sans-serif;
  --font-weight-regular: 400;
  --font-weight-medium: 500;
  --font-weight-semibold: 600;
  --font-weight-bold: 700;
  --font-weight-extrabold: 800;
  --font-size-sm: 0.875rem;
  --font-size-md: 1rem;
  --font-size-lg: 1.25rem;
  --font-size-xl: 1.875rem;
  --font-size-2xl: 2.5rem;
  --font-size-3xl: 3.75rem;
  --space-xs: 8px;
  --space-sm: 12px;
  --space-md: 16px;
  --space-lg: 24px;
  --space-xl: 32px;
  --space-2xl: 48px;
  --space-3xl: 72px;
  --radius-xs: 2px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-2xl: 24px;
  --size-sm: 24px;
  --size-md: 48px;
  --size-lg: 72px;
  --size-xl: 96px;
  --size-2xl: 120px;
  --size-3xl: 144px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 10px 15px -3px rgba(0, 0, 0, 0.10), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.10), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
  --transition-sm: 0.3s ease-in-out;
  --transition-md: 0.5s ease-in-out;
  --transition-lg: 0.8s ease-in-out;

  --bg: var(--color-white);
  --surface: #FFFFFF;
  --surface-2: #FCF3F5;
  --text: var(--Color-black);
  --text-soft: #5E313C;
  --muted: #74676A;
  --border: var(--color-secundario-50);
  --primary: var(--color-primario);
  --primary-strong: var(--color-terciario);
  --info: #285C9D;
  --success: #1E6D52;
  --warning: #76501A;
  --danger: var(--color-terciario);
  --ring: var(--color-primario);
}

* { box-sizing: border-box; }

html { min-height: 100%; }

/* Barras de desplazamiento: tono corporativo, visibles y discretas. */
html, body, * {
  scrollbar-width: thin;
  scrollbar-color: var(--color-terciario) var(--surface-2);
}

*::-webkit-scrollbar { width: 12px; height: 12px; }
*::-webkit-scrollbar-track {
  background: var(--surface-2);
  border: 3px solid transparent;
  border-radius: 999px;
  background-clip: padding-box;
}
*::-webkit-scrollbar-thumb {
  min-height: 36px;
  border: 3px solid transparent;
  border-radius: 999px;
  background: var(--color-primario-75);
  background-clip: padding-box;
}
*::-webkit-scrollbar-thumb:hover { background-color: var(--color-terciario); }
*::-webkit-scrollbar-thumb:active { background-color: var(--Color-black); }
*::-webkit-scrollbar-corner { background: var(--surface-2); }

.sidebar, .mobile-menu nav {
  scrollbar-color: var(--color-secundario) var(--Color-black);
}
.sidebar::-webkit-scrollbar-track, .mobile-menu nav::-webkit-scrollbar-track { background-color: var(--Color-black); }
.sidebar::-webkit-scrollbar-thumb, .mobile-menu nav::-webkit-scrollbar-thumb { background-color: var(--color-secundario-75); }
.sidebar::-webkit-scrollbar-thumb:hover, .mobile-menu nav::-webkit-scrollbar-thumb:hover { background-color: var(--color-secundario); }
.sidebar::-webkit-scrollbar-corner, .mobile-menu nav::-webkit-scrollbar-corner { background: var(--Color-black); }

body {
  min-height: 100dvh;
  margin: 0;
  background:
    radial-gradient(circle at top right, var(--color-secundario-25), transparent 32rem),
    var(--bg);
  color: var(--text);
  font-family: var(--font-family);
  font-size: var(--font-size-md);
  font-weight: var(--font-weight-regular);
  line-height: 1.5;
}

a { color: inherit; }
button, input, select, textarea { font: inherit; }
button, .button, .nav-link, .icon-button { cursor: pointer; }

:focus-visible {
  outline: 3px solid var(--color-primario-50);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -72px;
  left: var(--space-md);
  z-index: 1000;
  padding: var(--space-sm) var(--space-md);
  border-radius: var(--radius-sm);
  background: var(--Color-black);
  color: var(--color-white);
  text-decoration: none;
}

.skip-link:focus { top: var(--space-md); }

.app-shell {
  display: grid;
  grid-template-columns: 288px minmax(0, 1fr);
  min-height: 100dvh;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100dvh;
  padding: var(--space-md);
  overflow-y: auto;
  background: var(--Color-black);
  color: var(--color-white);
  border-right: 1px solid var(--color-secundario-25);
}

.mobile-menu, .mobile-bottom-nav { display: none; }

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: var(--size-md);
  margin-bottom: var(--space-lg);
  padding: var(--space-sm);
  border-bottom: 1px solid var(--color-secundario-25);
}

.brand-logo {
  display: block;
  width: 146px;
  height: auto;
  max-height: 42px;
  object-fit: contain;
  object-position: left center;
}

.brand-copy {
  display: grid;
  gap: 1px;
  font-size: 0.68rem;
  font-weight: var(--font-weight-semibold);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-secundario);
}

.brand-copy strong {
  color: var(--color-white);
  font-family: var(--font-family2);
  font-size: var(--font-size-sm);
  letter-spacing: 0.01em;
  text-transform: none;
}

.nav-group {
  margin: var(--space-lg) var(--space-sm) var(--space-xs);
  color: var(--color-secundario);
  font-size: 0.6875rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  min-height: 44px;
  margin-bottom: 2px;
  padding: 10px var(--space-sm);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  color: #E8E2E0;
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  text-decoration: none;
  transition: background var(--transition-sm), border-color var(--transition-sm), color var(--transition-sm), transform var(--transition-sm);
}

.nav-link:hover {
  background: var(--color-primario-25);
  color: var(--color-white);
}

.nav-link.active {
  border-color: var(--color-primario-50);
  background: var(--color-primario);
  color: var(--color-white);
  box-shadow: var(--shadow-sm);
}

.nav-link:active { transform: scale(0.98); }
.nav-link.danger { margin-top: var(--space-lg); color: #F3BBC9; }
.nav-link.danger:hover { background: var(--color-terciario-50); color: var(--color-white); }

.main {
  min-width: 0;
  padding: var(--space-lg);
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 72px;
  margin-bottom: var(--space-lg);
  padding: var(--space-md) var(--space-lg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.92);
  box-shadow: var(--shadow-sm);
}

.topbar h1 {
  margin: 0;
  color: var(--Color-black);
  font-family: var(--font-family2);
  font-size: var(--font-size-xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.user-chip {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-soft);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  white-space: nowrap;
}

.avatar {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 2px solid var(--color-secundario-50);
  border-radius: 50%;
  background: var(--color-primario-10);
  color: var(--color-terciario);
  font-weight: var(--font-weight-bold);
}

.content-stack { display: grid; gap: var(--space-md); }

.toolbar {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

.toolbar-actions { display: flex; align-items: center; gap: var(--space-sm); flex-wrap: wrap; }
.toolbar-actions form { margin: 0; }

.mailbox-toolbar { align-items: center; }
.mailbox-folders { display: flex; align-items: center; gap: 4px; flex-wrap: wrap; }
.mailbox-folder, .alias-filter {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  min-height: 40px;
  padding: 8px var(--space-sm);
  border: 1px solid var(--color-secundario-50);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-soft);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  text-decoration: none;
  transition: background var(--transition-sm), border-color var(--transition-sm), color var(--transition-sm);
}

.mailbox-folder svg, .alias-filter svg { width: 17px; height: 17px; }
.mailbox-folder:hover, .alias-filter:hover { border-color: var(--color-secundario); background: var(--surface-2); color: var(--color-terciario); }
.mailbox-folder.active, .alias-filter.active { border-color: var(--color-primario); background: var(--color-primario); color: var(--color-white); }

.alias-filter-bar {
  display: flex;
  gap: var(--space-xs);
  flex-wrap: wrap;
  margin: calc(var(--space-md) * -1) 0 var(--space-md);
  padding: var(--space-sm);
  border: 1px solid var(--color-secundario-25);
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.7);
}

.alias-filter { min-height: 36px; padding-block: 6px; font-size: 0.78rem; }
.favorite-button { width: 36px; height: 36px; }
.favorite-button.active { border-color: var(--color-secundario); background: var(--color-secundario-10); color: var(--warning); }
.favorite-button.active svg { fill: currentColor; }

.panel, .metric {
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.panel { overflow: hidden; }
.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-bottom: 1px solid var(--color-secundario-25);
  background: linear-gradient(90deg, var(--surface), var(--surface-2));
}

.panel-title {
  margin: 0;
  color: var(--Color-black);
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-bold);
}

.panel-body { padding: var(--space-lg); }
.grid { display: grid; gap: var(--space-md); }
.grid.two { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid.four { grid-template-columns: repeat(4, minmax(0, 1fr)); }

.metric { padding: var(--space-lg); }
.metric-label {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: var(--font-weight-bold);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.metric-label svg { color: var(--color-primario); }
.metric-value {
  margin-top: var(--space-sm);
  color: var(--color-terciario);
  font-family: var(--font-family2);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  line-height: 1;
}

.table-wrap { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: collapse; }
th, td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-secundario-25);
  text-align: left;
  vertical-align: top;
}

th {
  color: var(--text-soft);
  background: var(--surface-2);
  font-size: 0.6875rem;
  font-weight: var(--font-weight-extrabold);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

tbody tr { transition: background var(--transition-sm); }
tbody tr:hover { background: var(--color-primario-10); }
tbody tr:last-child td { border-bottom: 0; }

.mobile-email-list { display: none; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  min-height: 24px;
  padding: 3px 9px;
  border: 1px solid var(--color-secundario-50);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--text-soft);
  font-size: 0.75rem;
  font-weight: var(--font-weight-bold);
  white-space: nowrap;
}

.badge.success { border-color: #A7D8C5; background: #EDF8F3; color: var(--success); }
.badge.warning { border-color: #E6C682; background: #FFF8E8; color: var(--warning); }
.badge.danger { border-color: var(--color-primario-50); background: var(--color-primario-10); color: var(--color-terciario); }
.badge.info { border-color: #B6CBE7; background: #F0F5FB; color: var(--info); }
.badge.teal { border-color: #A7D8C5; background: #EDF8F3; color: var(--success); }

.form-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--space-md);
}

.field { display: grid; gap: 6px; }
.field.span-2 { grid-column: span 2; }
.field.span-3 { grid-column: span 3; }
.field.span-4 { grid-column: 1 / -1; }

label {
  color: var(--text-soft);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
}

input, select, textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px var(--space-sm);
  border: 1px solid var(--color-secundario-50);
  border-radius: var(--radius-sm);
  outline: none;
  background: var(--surface);
  color: var(--text);
  transition: border-color var(--transition-sm), box-shadow var(--transition-sm), background var(--transition-sm);
}

input:hover, select:hover, textarea:hover { border-color: var(--color-secundario-75); }
input:focus, select:focus, textarea:focus {
  border-color: var(--color-primario);
  box-shadow: 0 0 0 3px var(--color-primario-25);
}

textarea { min-height: 108px; resize: vertical; }

.rich-editor {
  overflow: hidden;
  border: 1px solid var(--color-secundario-50);
  border-radius: var(--radius-md);
  background: var(--surface);
  transition: border-color var(--transition-sm), box-shadow var(--transition-sm);
}

.rich-editor:focus-within {
  border-color: var(--color-primario);
  box-shadow: 0 0 0 3px var(--color-primario-25);
}

.rich-editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  padding: var(--space-sm);
  border-bottom: 1px solid var(--color-secundario-25);
  background: var(--surface-2);
}

.editor-tool-group {
  display: flex;
  align-items: center;
  gap: 2px;
  padding-right: var(--space-xs);
  border-right: 1px solid var(--color-secundario-50);
}

.editor-tool-group:last-child { padding-right: 0; border-right: 0; }

.editor-button {
  display: inline-grid;
  place-items: center;
  width: 40px;
  min-width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
  background: transparent;
  color: var(--text-soft);
  transition: color var(--transition-sm), background var(--transition-sm), border-color var(--transition-sm);
}

.editor-button:hover {
  border-color: var(--color-secundario-50);
  background: var(--surface);
  color: var(--color-terciario);
}

.editor-button:active { background: var(--color-primario-10); }
.editor-button svg { width: 18px; height: 18px; }
.editor-button:not(:has(svg))::after { content: attr(aria-label); max-width: 64px; overflow: hidden; color: currentColor; font-size: 0.625rem; font-weight: var(--font-weight-bold); line-height: 1.1; text-align: center; }

.editor-select {
  width: auto;
  min-width: 90px;
  min-height: 40px;
  padding: 7px 30px 7px var(--space-sm);
  border-radius: var(--radius-xs);
  font-size: var(--font-size-sm);
}

.editor-size-select { min-width: 96px; }
.editor-style-select { min-width: 104px; }

.editor-color {
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border: 1px solid transparent;
  border-radius: var(--radius-xs);
}

.editor-color:hover { border-color: var(--color-secundario-50); background: var(--surface); }
.editor-color input { width: 24px; min-height: 24px; padding: 0; border: 0; border-radius: 50%; background: transparent; cursor: pointer; }

.emoji-picker-control { position: relative; }
.emoji-picker-popover { position: absolute; z-index: 20; top: calc(100% + var(--space-xs)); right: 0; padding: 4px; border: 1px solid var(--color-secundario-50); border-radius: var(--radius-md); background: var(--surface); box-shadow: var(--shadow-lg); }
.emoji-picker-popover[hidden] { display: none; }
.emoji-picker-popover emoji-picker { --border-color: transparent; --background: var(--surface); --button-active-background: var(--color-primario-10); --button-hover-background: var(--color-secundario-10); --emoji-size: 1.25rem; width: min(352px, calc(100vw - 48px)); height: 410px; }

.rich-editor-canvas {
  min-height: 300px;
  padding: var(--space-md);
  outline: none;
  background: var(--surface);
  color: var(--text);
  font-family: Arial, sans-serif;
  line-height: 1.6;
  overflow-wrap: anywhere;
}

.rich-editor-canvas > :first-child { margin-top: 0; }
.rich-editor-canvas > :last-child { margin-bottom: 0; }
.rich-editor-canvas blockquote { margin: var(--space-md) 0; padding: var(--space-sm) var(--space-md); border-left: 4px solid var(--color-secundario); background: var(--color-secundario-10); color: var(--text-soft); }
.rich-editor-canvas a { color: var(--info); text-decoration: underline; }
.editor-status { min-height: 1.25rem; margin: 0; color: var(--color-terciario); font-size: var(--font-size-sm); font-weight: var(--font-weight-medium); }
.email-subject { color: var(--text); font-weight: var(--font-weight-semibold); text-decoration: none; }
.email-subject:hover { color: var(--color-terciario); text-decoration: underline; }
.email-direction { display: flex; align-items: center; gap: var(--space-xs); margin: 0 0 4px; color: var(--muted); font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); }
.email-direction svg { width: 16px; height: 16px; color: var(--color-primario); }
.email-meta { display: grid; gap: var(--space-sm); margin: 0 0 var(--space-xl); padding: var(--space-md); border: 1px solid var(--color-secundario-25); border-radius: var(--radius-sm); background: var(--surface-2); }
.email-meta div { display: grid; grid-template-columns: 120px minmax(0, 1fr); gap: var(--space-sm); }
.email-meta dt { color: var(--text-soft); font-weight: var(--font-weight-bold); }
.email-meta dd { min-width: 0; margin: 0; overflow-wrap: anywhere; }
.email-content { min-height: 240px; overflow-wrap: anywhere; font-family: Arial, sans-serif; line-height: 1.6; }
.email-content img { max-width: 100%; height: auto; }
.email-content table { max-width: 100%; }
.email-open-button { min-height: 36px; padding: 7px 10px; white-space: nowrap; }

.email-reader-modal {
  width: min(920px, calc(100vw - 32px));
  max-width: none;
  max-height: min(86dvh, 880px);
  margin: auto;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--color-secundario-50);
  border-radius: var(--radius-lg);
  background: var(--surface);
  color: var(--text);
  box-shadow: var(--shadow-xl);
}
.email-reader-modal::backdrop { background: rgba(20, 21, 22, 0.48); backdrop-filter: blur(8px); }
.email-reader-shell { display: flex; max-height: min(86dvh, 880px); flex-direction: column; }
.email-reader-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg);
  border-bottom: 1px solid var(--color-secundario-25);
  background: var(--surface-2);
}
.email-reader-header .email-direction { margin: 0 0 6px; }
.email-reader-subject { margin: 0; color: var(--Color-black); font-size: var(--font-size-xl); overflow-wrap: anywhere; }
.email-reader-scroll { min-height: 0; padding: var(--space-lg); overflow-y: auto; }
.email-reader-meta { margin-bottom: var(--space-lg); }
.email-reader-content { min-height: 160px; }
.email-reader-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-secundario-25);
  background: var(--surface);
}
.email-reader-actions [hidden] { display: none; }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  min-height: 44px;
  padding: 10px var(--space-md);
  border: 1px solid transparent;
  border-radius: var(--radius-sm);
  background: var(--primary);
  color: var(--color-white);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  text-decoration: none;
  transition: background var(--transition-sm), border-color var(--transition-sm), box-shadow var(--transition-sm), transform var(--transition-sm);
}

.button:hover { background: var(--primary-strong); box-shadow: var(--shadow-md); }
.button:active { transform: translateY(1px); }
.button.secondary { border-color: var(--color-secundario-50); background: var(--surface); color: var(--text-soft); }
.button.secondary:hover { border-color: var(--color-secundario); background: var(--surface-2); box-shadow: none; }
.button.info { background: var(--info); }
.button.success { background: var(--success); }
.button.warning { background: var(--warning); }
.button.danger { background: var(--danger); }

.icon-button {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--color-secundario-50);
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text-soft);
}

.alert {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
}

.alert.success { border-color: #A7D8C5; background: #EDF8F3; color: #15533D; }
.alert.danger { border-color: var(--color-primario-50); background: var(--color-primario-10); color: #721E31; }
.alert.warning { border-color: #E6C682; background: #FFF8E8; color: #654211; }
.alert.info { border-color: #B6CBE7; background: #F0F5FB; color: #224F82; }

.empty { padding: var(--space-xl); color: var(--muted); text-align: center; }
.mono { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; }
.muted { color: var(--muted); }
.nowrap { white-space: nowrap; }

.auth-shell {
  display: grid;
  place-items: center;
  min-height: 100dvh;
  padding: var(--space-lg);
}

.auth-panel { width: min(440px, 100%); }
.auth-brand {
  display: block;
  width: min(190px, 100%);
  height: auto;
  margin: 0 auto var(--space-md);
}

@media (max-width: 1100px) {
  .app-shell { grid-template-columns: 80px minmax(0, 1fr); }
  .brand { justify-content: center; padding-inline: 0; }
  .brand-logo { width: 40px; height: 40px; object-fit: cover; object-position: left; border-radius: var(--radius-xs); }
  .brand-copy, .nav-link span, .nav-group { display: none; }
  .sidebar { padding: var(--space-sm); }
  .nav-link { justify-content: center; }
  .grid.four { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 760px) {
  .app-shell { display: block; }
  .sidebar {
    position: sticky;
    z-index: 30;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    top: 0;
    height: auto;
    padding: var(--space-xs) var(--space-sm);
    border-right: 0;
    box-shadow: var(--shadow-md);
  }
  .brand { display: flex; min-height: 44px; margin: 0; padding: 0; border: 0; }
  .brand-logo { width: 118px; height: 34px; max-height: 34px; border-radius: 0; object-fit: contain; object-position: left; }
  .brand-copy { display: none; }
  .desktop-navigation { display: none; }
  .mobile-menu { display: block; }
  .mobile-menu summary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    min-width: 88px;
    min-height: 44px;
    padding: 8px 10px;
    border: 1px solid var(--color-secundario-50);
    border-radius: var(--radius-sm);
    color: var(--color-white);
    cursor: pointer;
    list-style: none;
    touch-action: manipulation;
  }
  .mobile-menu summary::-webkit-details-marker { display: none; }
  .mobile-menu summary svg { width: 19px; height: 19px; color: var(--color-secundario); }
  .mobile-menu[open] > summary { visibility: hidden; }
  .mobile-menu nav {
    position: fixed;
    z-index: 70;
    inset: 0;
    min-height: 100dvh;
    padding: max(var(--space-md), env(safe-area-inset-top)) var(--space-md) calc(var(--space-lg) + env(safe-area-inset-bottom));
    overflow-y: auto;
    background: var(--Color-black);
  }
  body.mobile-menu-open { overflow: hidden; }
  body.mobile-menu-open .sidebar { z-index: 70; }
  body.mobile-menu-open .mobile-bottom-nav { display: none; }
  .mobile-menu-header { display: flex; align-items: center; justify-content: space-between; min-height: 48px; margin-bottom: var(--space-md); color: var(--color-white); font-size: var(--font-size-xl); }
  .mobile-menu-header .icon-button { width: 44px; height: 44px; border-color: var(--color-secundario-50); color: var(--color-white); }
  .mobile-menu-section + .mobile-menu-section { margin-top: var(--space-xl); }
  .mobile-menu .nav-group { display: block; margin: 0 0 var(--space-sm); padding: 0; color: var(--color-secundario); }
  .mobile-menu-links { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--space-sm); }
  .mobile-menu .nav-link { min-height: 56px; padding: var(--space-sm); border: 1px solid var(--color-secundario-25); border-radius: var(--radius-sm); background: rgba(255, 255, 255, 0.04); }
  .mobile-menu .nav-link.active { border-color: var(--color-primario-75); background: var(--color-primario); }
  .mobile-menu .nav-link.danger { border-color: rgba(214, 53, 96, 0.45); }
  .mobile-menu .nav-link span { display: inline; }
  .main { padding: var(--space-sm); padding-bottom: 92px; }
  .topbar { align-items: flex-start; flex-direction: column; padding: var(--space-md); }
  .topbar h1 { font-size: var(--font-size-lg); }
  .grid.two, .grid.three, .grid.four { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
  .field.span-2, .field.span-3, .field.span-4 { grid-column: 1; }
  .panel-header, .panel-body { padding: var(--space-md); }
  .mailbox-toolbar { align-items: stretch; }
  .mailbox-folders, .toolbar-actions { width: 100%; }
  .toolbar-actions .button, .toolbar-actions form { flex: 1; }
  .toolbar-actions .button { width: 100%; }
  .mailbox-folder { flex: 1 1 calc(50% - 4px); justify-content: center; min-height: 44px; }
  .alias-filter-bar { margin-top: calc(var(--space-sm) * -1); }
  .inbox-table-wrap { display: none; }
  .mobile-email-list { display: grid; gap: var(--space-sm); padding: var(--space-sm); }
  .mobile-email-card {
    display: grid;
    gap: var(--space-sm);
    padding: var(--space-md);
    border: 1px solid var(--color-secundario-25);
    border-radius: var(--radius-sm);
    background: var(--surface);
  }
  .mobile-email-card-top, .mobile-email-actions { display: flex; align-items: center; justify-content: space-between; gap: var(--space-sm); }
  .mobile-email-date { color: var(--text-soft); font-size: var(--font-size-sm); font-variant-numeric: tabular-nums; }
  .mobile-email-subject { margin: 0; color: var(--Color-black); font-size: var(--font-size-md); font-weight: var(--font-weight-bold); line-height: 1.35; overflow-wrap: anywhere; }
  .mobile-email-sender { margin: 0; color: var(--text); overflow-wrap: anywhere; }
  .mobile-email-sender span { color: var(--text-soft); font-size: var(--font-size-sm); font-weight: var(--font-weight-bold); }
  .mobile-email-details { display: grid; gap: 4px; margin: 0; padding-top: var(--space-sm); border-top: 1px solid var(--color-secundario-25); }
  .mobile-email-details div { display: grid; grid-template-columns: 68px minmax(0, 1fr); gap: var(--space-sm); }
  .mobile-email-details dt { color: var(--text-soft); font-size: 0.75rem; font-weight: var(--font-weight-bold); }
  .mobile-email-details dd { min-width: 0; margin: 0; font-size: var(--font-size-sm); overflow-wrap: anywhere; }
  .mobile-email-actions { margin-top: 2px; }
  .mobile-email-actions .email-open-button { flex: 1; justify-content: center; min-height: 44px; }
  .mobile-email-actions form { margin: 0; }
  .mobile-email-actions .favorite-button { width: 44px; height: 44px; }
  .mobile-email-empty { margin: 0; padding: var(--space-lg) var(--space-md); }
  .rich-editor-toolbar { gap: 4px; }
  .editor-tool-group { padding-right: 4px; }
  .editor-button { width: 44px; min-width: 44px; height: 44px; }
  .editor-select { min-height: 44px; }
  .editor-color { width: 44px; height: 44px; }
  .rich-editor-canvas { min-height: 240px; }
  .emoji-picker-popover { position: fixed; top: 50%; left: 50%; right: auto; transform: translate(-50%, -50%); z-index: 100; }
  .email-meta div { grid-template-columns: 1fr; gap: 2px; }
  .email-actions { gap: var(--space-xs); }
  .email-actions .button { flex: 1 1 calc(50% - var(--space-xs)); }
  .email-reader-modal { width: calc(100vw - 20px); max-height: calc(100dvh - 20px); border-radius: var(--radius-md); }
  .email-reader-shell { max-height: calc(100dvh - 20px); }
  .email-reader-header, .email-reader-scroll { padding: var(--space-md); }
  .email-reader-subject { font-size: var(--font-size-lg); }
  .email-reader-actions { padding: var(--space-sm) var(--space-md); }
  .email-reader-actions .button { flex: 1 1 calc(50% - var(--space-xs)); justify-content: center; min-height: 44px; }
  .email-open-button { min-height: 40px; }
  .mobile-bottom-nav {
    position: fixed;
    z-index: 50;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: repeat(5, minmax(0, 1fr));
    min-height: 68px;
    padding: 6px 4px calc(6px + env(safe-area-inset-bottom));
    border-top: 1px solid var(--color-secundario-50);
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 -8px 20px rgba(20, 21, 22, 0.08);
  }
  .mobile-bottom-nav a {
    display: grid;
    place-items: center;
    gap: 2px;
    min-height: 48px;
    border-radius: var(--radius-sm);
    color: var(--muted);
    font-size: 0.625rem;
    font-weight: var(--font-weight-semibold);
    text-decoration: none;
    touch-action: manipulation;
  }
  .mobile-bottom-nav svg { width: 20px; height: 20px; }
  .mobile-bottom-nav a.active { background: var(--color-primario-10); color: var(--color-terciario); }
}

@media print {
  .sidebar, .mobile-bottom-nav, .topbar, .toolbar, .skip-link, .alias-filter-bar { display: none !important; }
  body.printing-email .content-stack > :not(.email-reader-modal) { display: none !important; }
  body, .main { background: #fff; }
  .main { padding: 0; }
  .panel { border: 0; box-shadow: none; }
  .email-content { min-height: 0; }
  .email-reader-modal[open] { position: static; width: 100%; max-height: none; border: 0; border-radius: 0; box-shadow: none; }
  .email-reader-shell { max-height: none; }
  .email-reader-scroll { overflow: visible; }
  .email-reader-actions, .email-reader-header .icon-button { display: none !important; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}