/* ==========================================================================
   Vialeko — Product Design System (CSS Tokens & Styles)
   Conforming to design.md v1.0
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Manrope:wght@400;500;600;700;800&display=swap');

:root {
  /* Brand color palette */
  --color-brand-blue: #0066ff;
  --color-brand-cyan: #00c6ff;
  --color-brand-mint: #00e6a8;
  --color-ink: #0b1f4b;
  --color-text-secondary: #586784;
  --color-bg: #f5f8ff;
  --color-surface: #ffffff;
  --color-border: #dfe7f4;
  --color-border-hover: #b8cde8;

  /* Status tokens */
  --color-success: #087f63;
  --color-success-bg: #e6faf3;
  --color-warning: #9a5b00;
  --color-warning-bg: #fff6e5;
  --color-error: #b42332;
  --color-error-bg: #fde8e9;
  --color-info: #0066ff;
  --color-info-bg: #edf4ff;

  /* Gradients */
  --gradient-brand: linear-gradient(110deg, #0066ff 0%, #00c6ff 52%, #00e6a8 100%);
  --gradient-brand-soft: linear-gradient(135deg, rgba(0, 102, 255, 0.08) 0%, rgba(0, 198, 255, 0.06) 50%, rgba(0, 230, 168, 0.08) 100%);
  --gradient-card-hero: linear-gradient(135deg, #0b1f4b 0%, #133273 100%);
  --gradient-pill: linear-gradient(90deg, #0066ff 0%, #00c6ff 100%);

  /* Typography */
  --font-family: 'Manrope', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Radii */
  --radius-input: 14px;
  --radius-button: 18px;
  --radius-card: 22px;
  --radius-pill: 999px;
  --radius-sm: 10px;

  /* Spacing Scale */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;

  /* Elevation */
  --shadow-subtle: 0 4px 20px rgba(11, 31, 75, 0.04);
  --shadow-card: 0 10px 30px rgba(11, 31, 75, 0.05);
  --shadow-hover: 0 16px 36px rgba(0, 102, 255, 0.12);
  --shadow-float: 0 20px 48px rgba(11, 31, 75, 0.12);

  /* Layout */
  --sidebar-width: 260px;
  --header-height: 74px;
  --bottom-nav-height: 70px;
}

/* Base Reset & Typography */
*, *::before, *::after {
  box-sizing: border-box;
}

html {
  font-family: var(--font-family);
  color: var(--color-ink);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  line-height: 1.5;
}

body {
  margin: 0;
  font-size: 15px;
  color: var(--color-ink);
  background-color: var(--color-bg);
  min-height: 100vh;
}

a {
  color: var(--color-brand-blue);
  text-decoration: none;
  transition: color 0.15s ease, opacity 0.15s ease;
}

a:hover {
  color: #0052cc;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: 14px;
  color: inherit;
}

button, a, select {
  cursor: pointer;
}

button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible {
  outline: 3px solid rgba(0, 102, 255, 0.35);
  outline-offset: 2px;
}

/* ==========================================================================
   Brand & Logo Component
   ========================================================================== */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 22px;
  font-weight: 800;
  color: var(--color-ink);
  letter-spacing: -0.6px;
  text-decoration: none;
  transition: transform 0.2s ease;
}

.brand:hover {
  transform: translateY(-1px);
}

.brand-logo-img {
  width: 36px;
  height: 36px;
  object-fit: contain;
  border-radius: 10px;
  flex-shrink: 0;
}

.brand-wordmark {
  display: flex;
  align-items: center;
  gap: 4px;
}

.brand-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gradient-brand);
  display: inline-block;
}

.brand-app-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  box-shadow: var(--shadow-subtle);
}

/* ==========================================================================
   Sidebar Navigation (Desktop Dashboard)
   ========================================================================== */
.app-sidebar {
  position: fixed;
  inset: 0 auto 0 0;
  width: var(--sidebar-width);
  background: var(--color-surface);
  border-right: 1px solid var(--color-border);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  z-index: 20;
  overflow-y: auto;
}

.sidebar-header {
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 18px;
}

.workspace-badge {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  margin-top: 14px;
}

.workspace-badge .avatar-school {
  width: 34px;
  height: 34px;
  border-radius: 10px;
  background: var(--gradient-brand);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  flex-shrink: 0;
}

.workspace-badge strong {
  display: block;
  font-size: 13px;
  color: var(--color-ink);
  line-height: 1.2;
}

.workspace-badge small {
  display: block;
  font-size: 11px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* Navigation Links */
.nav-section-title {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 1.2px;
  color: #8c9bb3;
  padding: 10px 12px 6px;
  text-transform: uppercase;
}

nav {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  color: var(--color-text-secondary);
  font-weight: 600;
  font-size: 14px;
  border-radius: 12px;
  transition: all 0.15s ease;
}

nav a svg {
  width: 18px;
  height: 18px;
  stroke-width: 2px;
  transition: stroke 0.15s ease;
}

nav a:hover {
  color: var(--color-ink);
  background: var(--color-bg);
}

nav a.active {
  background: #edf4ff;
  color: var(--color-brand-blue);
  font-weight: 700;
}

nav a.active svg {
  stroke: var(--color-brand-blue);
}

/* Aside Footer */
.aside-bottom {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.callout-brand {
  background: var(--gradient-brand-soft);
  border: 1px solid rgba(0, 102, 255, 0.15);
  border-radius: 14px;
  padding: 14px 16px;
}

.callout-brand strong {
  display: block;
  font-size: 13px;
  color: var(--color-ink);
  margin-bottom: 4px;
}

.callout-brand p {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.4;
}

.user-card {
  display: flex;
  align-items: center;
  gap: 10px;
}

.avatar {
  display: inline-grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: #e3edfc;
  color: var(--color-brand-blue);
  font-size: 13px;
  font-weight: 700;
  flex-shrink: 0;
}

.avatar.large {
  width: 52px;
  height: 52px;
  font-size: 17px;
  border-radius: 16px;
}

.avatar.gradient {
  background: var(--gradient-brand);
  color: #ffffff;
}

.user-card strong {
  display: block;
  font-size: 13px;
  color: var(--color-ink);
}

.user-card small {
  display: block;
  font-size: 11px;
  color: var(--color-text-secondary);
}

.logout-form {
  margin: 0;
}

.text-button {
  background: none;
  border: none;
  padding: 4px 0;
  font-size: 12px;
  font-weight: 600;
  color: #7b8ca5;
  cursor: pointer;
  transition: color 0.15s ease;
}

.text-button:hover {
  color: var(--color-error);
}

/* ==========================================================================
   Main Content Area & Topbar Header
   ========================================================================== */
.app-main {
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

header.topbar {
  height: var(--header-height);
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 36px;
  position: sticky;
  top: 0;
  z-index: 15;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-text-secondary);
  font-weight: 500;
}

.breadcrumb strong {
  color: var(--color-ink);
  font-weight: 700;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-alert-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink);
  background: var(--color-surface);
  transition: all 0.15s ease;
}

.header-alert-btn:hover {
  background: var(--color-bg);
  border-color: var(--color-border-hover);
}

.header-alert-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 18px;
  height: 18px;
  padding: 0 5px;
  border-radius: 9px;
  background: var(--color-error);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
}

.content {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 32px 36px 60px;
}

/* Page Intro Header */
.intro {
  margin-bottom: 28px;
}

.eyebrow {
  font-size: 12px;
  letter-spacing: 1.4px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-brand-blue);
  margin-bottom: 6px;
}

.intro h1 {
  font-size: 32px;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin: 0 0 6px;
  color: var(--color-ink);
}

.intro p {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin: 0;
  max-width: 680px;
}

/* ==========================================================================
   Component Library (Cards, Buttons, Inputs, Badges, Tables)
   ========================================================================== */

/* Buttons */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 700;
  border-radius: var(--radius-button);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-ink);
  transition: all 0.18s ease;
  white-space: nowrap;
  box-shadow: var(--shadow-subtle);
  min-height: 44px;
}

.button:hover {
  background: #f8faff;
  border-color: var(--color-border-hover);
  transform: translateY(-1px);
}

.button.primary {
  background: var(--color-brand-blue);
  border-color: var(--color-brand-blue);
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(0, 102, 255, 0.28);
}

.button.primary:hover {
  background: #0056db;
  border-color: #0056db;
  box-shadow: 0 6px 18px rgba(0, 102, 255, 0.36);
  transform: translateY(-1px);
}

.button.gradient {
  background: var(--gradient-brand);
  border: none;
  color: #ffffff;
  box-shadow: 0 4px 16px rgba(0, 102, 255, 0.28);
}

.button.gradient:hover {
  filter: brightness(1.05);
  box-shadow: 0 6px 20px rgba(0, 102, 255, 0.38);
  transform: translateY(-1px);
}

.button.secondary {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-ink);
}

.button.secondary:hover {
  border-color: var(--color-brand-blue);
  color: var(--color-brand-blue);
}

.button.sm {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 12px;
  min-height: 32px;
}

.button.lg {
  padding: 14px 26px;
  font-size: 16px;
  border-radius: 20px;
  min-height: 52px;
}

/* Cards */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  margin-bottom: 24px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.card:hover {
  border-color: var(--color-border-hover);
}

.card-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 26px;
  border-bottom: 1px solid #edf2f9;
}

.card-head h2 {
  font-size: 18px;
  font-weight: 800;
  margin: 0;
  color: var(--color-ink);
}

.card-head p {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 4px 0 0;
}

.card-body {
  padding: 24px 26px;
}

/* Layout Grids */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 28px;
}

.stat {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: 22px;
  box-shadow: var(--shadow-subtle);
  position: relative;
  overflow: hidden;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.stat:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card);
}

.stat.featured {
  background: var(--gradient-brand-soft);
  border-color: rgba(0, 102, 255, 0.2);
}

.stat span {
  display: block;
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 600;
}

.stat strong {
  display: block;
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -1px;
  margin-top: 10px;
  color: var(--color-ink);
}

.columns {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(320px, 0.8fr);
  gap: 24px;
  align-items: start;
}

.columns.wide-left {
  grid-template-columns: minmax(0, 1.8fr) minmax(320px, 0.8fr);
}

/* Status Chips / Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: var(--radius-pill);
  font-size: 12px;
  font-weight: 700;
  white-space: nowrap;
}

.badge.green, .badge.success {
  background: var(--color-success-bg);
  color: var(--color-success);
}

.badge.amber, .badge.warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
}

.badge.red, .badge.error {
  background: var(--color-error-bg);
  color: var(--color-error);
}

.badge.blue, .badge.info {
  background: var(--color-info-bg);
  color: var(--color-info);
}

.badge.gray {
  background: #eef2f7;
  color: #55657e;
}

/* Forms & Inputs */
.stack {
  display: grid;
  gap: 16px;
  padding: 22px 26px;
}

.stack label {
  display: grid;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-ink);
}

.stack input, .stack select, .stack textarea, .card-head input, .inline-form select, .rate input {
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  border-radius: var(--radius-input);
  padding: 12px 14px;
  font-size: 14px;
  color: var(--color-ink);
  width: 100%;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.stack input:focus, .stack select:focus, .stack textarea:focus, .card-head input:focus {
  border-color: var(--color-brand-blue);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.15);
  outline: none;
}

.stack textarea {
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.stack label.check {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.stack label.check input {
  width: 18px;
  height: 18px;
  accent-color: var(--color-brand-blue);
}

/* Tables */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

th {
  padding: 13px 22px;
  color: #7b8ca5;
  font-size: 11px;
  font-weight: 700;
  background: #f9fbfe;
  border-block: 1px solid var(--color-border);
  text-transform: uppercase;
  letter-spacing: 0.6px;
}

td {
  padding: 15px 22px;
  border-bottom: 1px solid #edf2f9;
  font-size: 14px;
  white-space: nowrap;
}

tr:hover td {
  background: #fbfdff;
}

.person {
  display: flex;
  align-items: center;
  gap: 12px;
}

.person strong {
  display: block;
  font-size: 14px;
  color: var(--color-ink);
}

.person small {
  display: block;
  color: var(--color-text-secondary);
  font-size: 12px;
  margin-top: 2px;
}

progress {
  width: 90px;
  height: 8px;
  accent-color: var(--color-brand-blue);
  border-radius: 4px;
  overflow: hidden;
}

/* Schedule & Lessons */
.lesson {
  display: grid;
  grid-template-columns: 75px 1fr auto;
  gap: 18px;
  align-items: center;
  padding: 18px 24px;
  border-top: 1px solid #edf2f9;
  transition: background 0.15s ease;
}

.lesson:hover {
  background: #fbfdff;
}

.lesson time {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-ink);
}

.lesson time small, .lesson div small {
  display: block;
  color: var(--color-text-secondary);
  font-size: 12px;
  margin-top: 3px;
  font-weight: 500;
}

.lesson div strong {
  font-size: 15px;
  color: var(--color-ink);
}

.notice {
  padding: 18px 24px;
  border-top: 1px solid #edf2f9;
}

.notice strong {
  display: block;
  font-size: 14px;
  color: var(--color-ink);
}

.notice small {
  display: block;
  color: var(--color-text-secondary);
  font-size: 12px;
  margin-top: 4px;
}

.inline-form {
  display: flex;
  gap: 8px;
  align-items: center;
}

.inline-form input[type=hidden] {
  display: none;
}

/* Flash alerts */
.flash {
  padding: 14px 18px;
  border-radius: 14px;
  background: var(--color-success-bg);
  color: var(--color-success);
  margin-bottom: 22px;
  font-size: 14px;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
  border: 1px solid rgba(8, 127, 99, 0.2);
}

.flash.error {
  background: var(--color-error-bg);
  color: var(--color-error);
  border-color: rgba(180, 35, 50, 0.2);
}

.flash.warning {
  background: var(--color-warning-bg);
  color: var(--color-warning);
  border-color: rgba(154, 91, 0, 0.18);
}

.flash.warning a {
  color: inherit;
  font-weight: 800;
  text-decoration: underline;
}

.empty {
  text-align: center;
  padding: 44px 20px;
  color: var(--color-text-secondary);
  font-size: 14px;
}

/* Packs Grid */
.pack-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 0 24px 24px;
}

.pack {
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: 22px;
  display: flex;
  flex-direction: column;
  min-height: 260px;
  background: var(--color-surface);
  transition: all 0.2s ease;
}

.pack:hover {
  border-color: var(--color-brand-blue);
  box-shadow: var(--shadow-subtle);
}

.pack.disabled {
  opacity: 0.6;
  background: #fbfdff;
}

.pack-title {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.pack h3 {
  font-size: 17px;
  font-weight: 800;
  margin: 12px 0 0;
  color: var(--color-ink);
}

.price {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -1px;
  margin: 14px 0 4px;
  color: var(--color-brand-blue);
}

.pack > small {
  color: var(--color-text-secondary);
  font-size: 12px;
}

.pack > p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.5;
  margin: 12px 0;
}

.chips {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin: 12px 0;
}

.chips span {
  font-size: 11px;
  font-weight: 700;
  background: var(--color-bg);
  color: var(--color-ink);
  padding: 5px 9px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--color-border);
}

.pack-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: auto;
}

.rate {
  display: grid;
  grid-template-columns: 46px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 14px 24px;
  border-top: 1px solid #edf2f9;
}

.rate strong {
  font-size: 16px;
  color: var(--color-ink);
}

.rate label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
}

.rate input {
  max-width: 100px;
  text-align: right;
}

/* Tiles (Teachers, Vehicles) */
.tile-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}

.columns > .tile-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.tile {
  padding: 24px;
}

.tile h2 {
  font-size: 17px;
  font-weight: 800;
  margin: 16px 0 8px;
  color: var(--color-ink);
}

.tile p {
  font-size: 13px;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.vehicle-icon {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: #edf4ff;
  color: var(--color-brand-blue);
  font-size: 22px;
}

.settings-card {
  max-width: 720px;
}

.settings-card > p, .settings-card > h2, .settings-card > hr {
  margin-left: 26px;
  margin-right: 26px;
}

.settings-card > hr {
  border: 0;
  border-top: 1px solid var(--color-border);
  margin-top: 26px;
  margin-bottom: 26px;
}

footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: #8c9cb4;
  font-size: 12px;
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

/* ==========================================================================
   Learner App / Student Mode (design.md Section 3 & 4)
   ========================================================================== */
.learner-container {
  max-width: 640px;
  margin: 0 auto;
}

/* Greeting Bar */
.learner-greeting {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.learner-greeting h1 {
  font-size: 26px;
  font-weight: 800;
  color: var(--color-ink);
  margin: 0;
}

.learner-greeting p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 4px 0 0;
}

/* Progress Hero Card */
.progress-hero-card {
  background: var(--gradient-card-hero);
  border-radius: var(--radius-card);
  padding: 26px;
  color: #ffffff;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  margin-bottom: 24px;
  box-shadow: 0 14px 36px rgba(11, 31, 75, 0.22);
  position: relative;
  overflow: hidden;
}

.progress-hero-card::after {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(0, 198, 255, 0.25) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.progress-hero-card h2 {
  font-size: 20px;
  font-weight: 800;
  margin: 0 0 8px;
  color: #ffffff;
}

.progress-hero-card p {
  font-size: 13px;
  color: #c7d8f5;
  margin: 0 0 16px;
}

.progress-metrics-row {
  display: flex;
  gap: 16px;
}

.progress-metric-pill {
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 8px 14px;
  border-radius: 14px;
}

.progress-metric-pill small {
  display: block;
  font-size: 11px;
  color: #a4c2ee;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.progress-metric-pill strong {
  display: block;
  font-size: 16px;
  font-weight: 800;
  margin-top: 2px;
}

/* SVG Progress Ring */
.progress-ring-wrap {
  position: relative;
  width: 104px;
  height: 104px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.progress-ring-circle {
  transform: rotate(-90deg);
  transform-origin: 50% 50%;
}

.progress-ring-text {
  position: absolute;
  font-size: 22px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.5px;
}

/* Next Lesson Card (Section 4.B) */
.next-lesson-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 22px 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-subtle);
  position: relative;
}

.next-lesson-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}

.next-lesson-header span {
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-brand-blue);
}

.next-lesson-details {
  display: flex;
  gap: 16px;
  align-items: center;
}

.next-lesson-calendar-badge {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 10px 14px;
  text-align: center;
  min-width: 66px;
}

.next-lesson-calendar-badge .day-name {
  font-size: 11px;
  font-weight: 800;
  color: var(--color-brand-blue);
  text-transform: uppercase;
}

.next-lesson-calendar-badge .day-num {
  font-size: 24px;
  font-weight: 800;
  color: var(--color-ink);
  line-height: 1.1;
}

.next-lesson-info h3 {
  font-size: 17px;
  font-weight: 800;
  margin: 0;
  color: var(--color-ink);
}

.next-lesson-info p {
  font-size: 13px;
  color: var(--color-text-secondary);
  margin: 4px 0 0;
}

/* Quick Actions Grid */
.quick-actions-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-bottom: 28px;
}

.quick-action-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: 16px 10px;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--color-ink);
  transition: all 0.2s ease;
  box-shadow: var(--shadow-subtle);
}

.quick-action-btn:hover {
  transform: translateY(-2px);
  border-color: var(--color-brand-blue);
  box-shadow: var(--shadow-card);
  color: var(--color-brand-blue);
}

.quick-action-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--color-bg);
  display: grid;
  place-items: center;
  color: var(--color-brand-blue);
  transition: background 0.2s ease;
}

.quick-action-btn:hover .quick-action-icon {
  background: #edf4ff;
}

.quick-action-btn span {
  font-size: 12px;
  font-weight: 700;
}

/* Interactive Date Selector Strip */
.date-strip-wrap {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding: 4px 2px 14px;
  margin-bottom: 20px;
  scrollbar-width: thin;
}

.date-pill {
  flex: 0 0 72px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 12px 6px;
  text-align: center;
  cursor: pointer;
  transition: all 0.2s ease;
  user-select: none;
}

.date-pill:hover {
  border-color: var(--color-brand-blue);
}

.date-pill.selected {
  background: var(--color-brand-blue);
  border-color: var(--color-brand-blue);
  color: #ffffff;
  box-shadow: 0 6px 18px rgba(0, 102, 255, 0.32);
}

.date-pill .pill-weekday {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--color-text-secondary);
}

.date-pill.selected .pill-weekday {
  color: #cce0ff;
}

.date-pill .pill-day {
  font-size: 20px;
  font-weight: 800;
  margin: 4px 0 2px;
}

/* Selectable Time Slots */
.time-slot-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-bottom: 24px;
}

.time-slot-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  transition: all 0.18s ease;
}

.time-slot-card:hover:not(.disabled) {
  border-color: var(--color-brand-blue);
  background: #fbfdff;
}

.time-slot-card.selected {
  border: 2px solid var(--color-brand-blue);
  background: #f5f9ff;
}

.time-slot-card.disabled {
  opacity: 0.45;
  cursor: not-allowed;
  background: #f8fafc;
}

.time-slot-card strong {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-ink);
}

.time-slot-card small {
  display: block;
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

/* Interactive Theory Test Runner */
.test-runner-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  padding: 28px;
  box-shadow: var(--shadow-card);
  margin-bottom: 24px;
}

.test-progress-bar {
  display: flex;
  gap: 6px;
  margin-bottom: 20px;
}

.test-progress-dot {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: var(--color-border);
  transition: background 0.2s ease;
}

.test-progress-dot.answered {
  background: var(--color-brand-blue);
}

.test-progress-dot.correct {
  background: var(--color-success);
}

.test-progress-dot.wrong {
  background: var(--color-error);
}

.question-text {
  font-size: 18px;
  font-weight: 800;
  color: var(--color-ink);
  line-height: 1.4;
  margin: 0 0 20px;
}

.test-options-list {
  display: grid;
  gap: 12px;
  margin-bottom: 24px;
}

.test-option-btn {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 14px 18px;
  text-align: left;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-ink);
  display: flex;
  align-items: center;
  gap: 14px;
  transition: all 0.15s ease;
  width: 100%;
}

.test-option-btn:hover:not(:disabled) {
  border-color: var(--color-brand-blue);
  background: #fbfdff;
}

.test-option-btn.selected {
  border: 2px solid var(--color-brand-blue);
  background: #f5f9ff;
}

.test-option-btn.correct {
  border-color: var(--color-success);
  background: var(--color-success-bg);
  color: var(--color-success);
  font-weight: 700;
}

.test-option-btn.incorrect {
  border-color: var(--color-error);
  background: var(--color-error-bg);
  color: var(--color-error);
  font-weight: 700;
}

.test-explanation-callout {
  padding: 16px 20px;
  border-radius: 14px;
  background: #f0f6ff;
  border: 1px solid #cce0ff;
  font-size: 13px;
  color: #1a4282;
  margin-bottom: 20px;
  line-height: 1.5;
}

/* Theory Topics Grid */
.theory-topics-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.theory-topic-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  padding: 20px;
  box-shadow: var(--shadow-subtle);
  display: flex;
  flex-direction: column;
  transition: all 0.2s ease;
}

.theory-topic-card:hover {
  transform: translateY(-2px);
  border-color: var(--color-brand-blue);
  box-shadow: var(--shadow-card);
}

.theory-topic-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: var(--gradient-brand-soft);
  display: grid;
  place-items: center;
  font-size: 20px;
  margin-bottom: 14px;
}

.theory-topic-card h3 {
  font-size: 15px;
  font-weight: 800;
  margin: 0 0 6px;
  color: var(--color-ink);
}

.theory-topic-card p {
  font-size: 12px;
  color: var(--color-text-secondary);
  margin: 0 0 16px;
  line-height: 1.4;
}

/* Persistent Bottom Navigation for Mobile / Learner */
.bottom-nav {
  display: none;
  position: fixed;
  inset: auto 0 0 0;
  height: var(--bottom-nav-height);
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  box-shadow: 0 -4px 20px rgba(11, 31, 75, 0.06);
  z-index: 50;
  padding: 0 12px;
}

.bottom-nav-inner {
  display: flex;
  height: 100%;
  align-items: center;
  justify-content: space-around;
  max-width: 500px;
  margin: 0 auto;
}

.bottom-nav-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  color: #7b8ca5;
  font-size: 11px;
  font-weight: 700;
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 12px;
  transition: color 0.15s ease;
  position: relative;
}

.bottom-nav-item svg {
  width: 22px;
  height: 22px;
  stroke-width: 2px;
}

.bottom-nav-item.active {
  color: var(--color-brand-blue);
}

.bottom-nav-item.active svg {
  stroke: var(--color-brand-blue);
}

/* ==========================================================================
   Auth & Welcome / Onboarding Screen (Section 4.A) - Responsive Split View
   ========================================================================== */
.auth-body {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 24px;
  background: radial-gradient(circle at 10% 20%, #ebf3ff 0%, #f5f8ff 80%);
}

.auth-wrapper {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 40px;
  align-items: stretch;
}

/* Auth Hero Panel (Desktop) */
.auth-hero {
  background: var(--gradient-card-hero);
  border-radius: 28px;
  padding: 44px 38px;
  color: #ffffff;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(11, 31, 75, 0.18);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.auth-hero::after {
  content: '';
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 260px;
  height: 260px;
  background: radial-gradient(circle, rgba(0, 198, 255, 0.28) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.auth-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(8px);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(255, 255, 255, 0.16);
  margin-bottom: 24px;
  width: fit-content;
}

.auth-hero-logo {
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.auth-hero-brand {
  font-size: 16px;
  font-weight: 800;
  letter-spacing: -0.3px;
  color: #ffffff;
}

.auth-hero-title {
  font-size: 30px;
  font-weight: 800;
  letter-spacing: -0.8px;
  line-height: 1.25;
  margin: 10px 0 14px;
  color: #ffffff;
}

.auth-hero-desc {
  font-size: 14px;
  color: #d1e2fc;
  line-height: 1.6;
  margin: 0 0 28px;
}

.auth-hero-features {
  display: grid;
  gap: 14px;
  margin-bottom: 28px;
}

.auth-hero-feat {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: rgba(255, 255, 255, 0.06);
  padding: 12px 16px;
  border-radius: 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.auth-hero-feat-icon {
  font-size: 20px;
  flex-shrink: 0;
  margin-top: 2px;
}

.auth-hero-feat strong {
  display: block;
  font-size: 13px;
  color: #ffffff;
  margin-bottom: 2px;
}

.auth-hero-feat p {
  font-size: 12px;
  color: #b9d2f8;
  margin: 0;
  line-height: 1.4;
}

.auth-hero-footer {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: 16px;
}

.auth-hero-tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-brand-cyan);
}

.auth-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 28px;
  padding: 38px 36px;
  box-shadow: 0 20px 60px rgba(11, 31, 75, 0.08);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.auth-header {
  text-align: center;
  margin-bottom: 28px;
}

.auth-header .brand {
  margin-bottom: 20px;
}

.auth-header h1 {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.8px;
  margin: 8px 0;
  color: var(--color-ink);
}

.auth-header p {
  font-size: 14px;
  color: var(--color-text-secondary);
  margin: 0;
  line-height: 1.5;
}

.auth-feature-pills {
  display: flex;
  gap: 8px;
  justify-content: center;
  flex-wrap: wrap;
  margin: 16px 0 24px;
  padding: 0;
  list-style: none;
}

.auth-feature-pill {
  font-size: 11px;
  font-weight: 700;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-ink);
  padding: 6px 12px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.auth-tabs {
  display: flex;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: 4px;
  margin-bottom: 22px;
}

.auth-tab-btn {
  flex: 1;
  padding: 9px;
  border: none;
  background: none;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-secondary);
  border-radius: var(--radius-pill);
  transition: all 0.2s ease;
  text-align: center;
}

.auth-tab-btn.active {
  background: var(--color-surface);
  color: var(--color-brand-blue);
  box-shadow: 0 2px 8px rgba(11, 31, 75, 0.06);
}

.demo-access-box {
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px dashed var(--color-border);
  text-align: center;
}

.demo-access-box small {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: #8c9cb4;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-bottom: 12px;
}

.demo-access-buttons {
  display: flex;
  gap: 10px;
}

.demo-access-buttons button {
  flex: 1;
}

/* ==========================================================================
   Student portal
   ========================================================================== */
.student-hero-card {
  padding-bottom: 24px;
  background: linear-gradient(145deg, #ffffff 0%, #f1f7ff 100%);
}

.student-hero-card > .button {
  margin: 0 24px;
}

.student-next-lesson {
  display: grid;
  grid-template-columns: 72px 1fr;
  gap: 18px;
  align-items: center;
  margin: 0 24px 24px;
  padding: 20px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-card);
  background: var(--color-surface);
}

.student-next-lesson h3 {
  margin: 0 0 6px;
  font-size: 20px;
}

.student-next-lesson p {
  margin: 0 0 10px;
  color: var(--color-text-secondary);
}

.student-date {
  width: 68px;
  height: 72px;
  border-radius: 18px;
  display: grid;
  place-content: center;
  text-align: center;
  color: #fff;
  background: var(--gradient-brand);
}

.student-date strong {
  font-size: 26px;
  line-height: 1;
}

.student-date span {
  margin-top: 4px;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 1px;
}

.student-progress-panel {
  padding: 0 24px 24px;
}

.student-progress-panel progress {
  width: 100%;
  height: 10px;
}

.student-progress-panel p {
  color: var(--color-text-secondary);
}

.progress-value {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: -2px;
  color: var(--color-brand-blue);
}

.progress-value small {
  font-size: 20px;
}

.profile-data {
  margin: 0;
  padding: 0 24px 24px;
}

.profile-data > div {
  display: grid;
  grid-template-columns: 120px 1fr;
  gap: 16px;
  padding: 13px 0;
  border-top: 1px solid var(--color-border);
}

.profile-data dt {
  color: var(--color-text-secondary);
  font-size: 12px;
  font-weight: 700;
}

.profile-data dd {
  margin: 0;
  font-weight: 700;
}

@media (max-width: 600px) {
  .student-next-lesson {
    grid-template-columns: 58px 1fr;
    margin: 0 16px 20px;
    padding: 16px;
  }
  .student-date {
    width: 56px;
    height: 62px;
  }
  .student-hero-card > .button {
    margin: 0 16px;
  }
  .profile-data > div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

/* ==========================================================================
   Responsive Adaptations (Breakpoints <600px, 600-1023px, ≥1024px)
   ========================================================================== */
@media (max-width: 1024px) {
  .app-sidebar {
    width: 220px;
    padding: 20px 14px;
  }
  .app-main {
    margin-left: 220px;
  }
  .content {
    padding: 24px 20px 40px;
  }
  .stats {
    grid-template-columns: repeat(2, 1fr);
  }
  .columns, .columns.wide-left {
    grid-template-columns: 1fr;
  }
  .tile-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 960px) {
  .auth-body {
    padding: 20px 16px;
  }
  .auth-wrapper {
    grid-template-columns: 1fr;
    max-width: 480px;
    gap: 0;
  }
  .auth-hero {
    display: none;
  }
  .auth-card {
    padding: 32px 24px;
    border-radius: 22px;
  }
}

@media (max-width: 768px) {
  .app-sidebar {
    position: static;
    width: 100%;
    border-right: 0;
    border-bottom: 1px solid var(--color-border);
  }
  .app-main {
    margin-left: 0;
    padding-bottom: calc(var(--bottom-nav-height) + 20px);
  }
  header.topbar {
    padding: 0 18px;
  }
  .content {
    padding: 20px 16px 80px;
  }
  .bottom-nav {
    display: block;
  }
  .stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }
  .stat {
    padding: 16px;
  }
  .stat strong {
    font-size: 24px;
  }
  .tile-grid, .columns > .tile-grid, .pack-grid, .theory-topics-grid {
    grid-template-columns: 1fr;
  }
  .quick-actions-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .progress-hero-card {
    grid-template-columns: 1fr;
    text-align: center;
  }
  .progress-ring-wrap {
    margin: 0 auto;
  }
  .progress-metrics-row {
    justify-content: center;
  }
  .time-slot-grid {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   DGT Forms & Applications Generator — Premium SaaS Design
   ========================================================================== */
.dgt-hero-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  padding: 16px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl, 20px);
  box-shadow: 0 2px 10px rgba(11, 31, 75, 0.03);
}

.dgt-tab-group {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.dgt-tab-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 20px;
  background: var(--color-bg);
  border: 1.5px solid transparent;
  border-radius: var(--radius-lg, 16px);
  text-decoration: none;
  color: var(--color-text-secondary);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  cursor: pointer;
}

.dgt-tab-card:hover {
  background: var(--color-surface);
  border-color: var(--color-border);
  color: var(--color-ink);
  transform: translateY(-1px);
}

.dgt-tab-card.active {
  background: #ffffff;
  border-color: var(--color-brand-blue);
  color: var(--color-ink);
  box-shadow: 0 4px 14px rgba(0, 102, 255, 0.12);
}

.dgt-tab-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 102, 255, 0.08);
  color: var(--color-brand-blue);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}

.dgt-tab-card.active .dgt-tab-icon {
  background: var(--color-brand-blue);
  color: #ffffff;
}

.dgt-tab-card:hover .dgt-tab-icon {
  transform: scale(1.05);
}

.dgt-tab-info strong {
  display: block;
  font-size: 14.5px;
  font-weight: 700;
  line-height: 1.25;
}

.dgt-tab-info small {
  display: block;
  font-size: 12px;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.dgt-official-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(0, 230, 168, 0.1);
  border: 1px solid rgba(0, 230, 168, 0.3);
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--color-success, #087f63);
}

.dgt-section-title-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.dgt-step-badge {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-brand-blue) 0%, #004ecc 100%);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 14px;
  box-shadow: 0 2px 6px rgba(0, 102, 255, 0.25);
  flex-shrink: 0;
}

.dgt-card-body {
  padding: 24px;
}

.dgt-codes-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  background: var(--color-bg);
  padding: 16px;
  border-radius: var(--radius-md, 12px);
  border: 1px solid var(--color-border);
  margin: 12px 0;
}

.dgt-quick-picker-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  background: linear-gradient(135deg, rgba(0, 102, 255, 0.05) 0%, rgba(0, 198, 255, 0.04) 100%);
  border: 1.5px dashed rgba(0, 102, 255, 0.35);
  padding: 12px 18px;
  border-radius: var(--radius-lg, 16px);
  margin-bottom: 20px;
  flex-wrap: wrap;
}

.dgt-quick-picker-banner label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0;
}

.dgt-student-card {
  background: #ffffff;
  border: 1.5px solid var(--color-border);
  border-left: 5px solid var(--color-brand-blue);
  border-radius: var(--radius-lg, 16px);
  padding: 22px;
  margin-bottom: 20px;
  box-shadow: 0 3px 12px rgba(11, 31, 75, 0.04);
  transition: all 0.2s ease;
}

.dgt-student-card.anulacion-slot {
  border-left-color: #f97316;
}

.dgt-student-card:hover {
  border-color: var(--color-border-hover);
  border-left-color: var(--color-brand-blue);
  box-shadow: 0 6px 20px rgba(11, 31, 75, 0.08);
}

.dgt-student-card.anulacion-slot:hover {
  border-left-color: #f97316;
}

.dgt-student-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
  gap: 12px;
}

.dgt-student-slot-tag {
  display: flex;
  align-items: center;
  gap: 10px;
}

.dgt-avatar-pill {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 13px;
  color: var(--color-brand-blue);
}

.dgt-add-student-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 16px;
  background: transparent;
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg, 16px);
  color: var(--color-brand-blue);
  font-size: 14.5px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.2s ease;
}

.dgt-add-student-btn:hover {
  background: rgba(0, 102, 255, 0.04);
  border-color: var(--color-brand-blue);
  transform: translateY(-1px);
}

.dgt-chips-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.dgt-chip-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-ink);
  cursor: pointer;
  transition: all 0.15s ease;
}

.dgt-chip-btn:hover {
  background: var(--color-bg);
  border-color: var(--color-brand-blue);
  color: var(--color-brand-blue);
  transform: translateY(-1px);
}

.dgt-chip-btn:active {
  transform: scale(0.98);
}

/* Sidebar Document Mockup */
.dgt-doc-preview-card {
  background: #ffffff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl, 20px);
  padding: 24px;
  box-shadow: 0 4px 20px rgba(11, 31, 75, 0.05);
  position: sticky;
  top: 88px;
}

.dgt-sheet-mockup {
  background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
  border: 1px solid #cbd5e1;
  border-radius: 12px;
  padding: 18px;
  margin-bottom: 20px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.02);
  position: relative;
  overflow: hidden;
}

.dgt-sheet-mockup::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 0 24px 24px 0;
  border-color: transparent var(--color-border) transparent transparent;
}

.dgt-sheet-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1.5px solid #cbd5e1;
}

.dgt-sheet-dgt-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.5px;
  color: var(--color-ink);
}

.dgt-sheet-fields {
  display: grid;
  gap: 10px;
  font-size: 12px;
}

.dgt-sheet-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(255, 255, 255, 0.7);
  padding: 6px 10px;
  border-radius: 6px;
  border: 1px solid #e2e8f0;
}

.dgt-sheet-row small {
  color: var(--color-text-secondary);
  font-weight: 600;
}

.dgt-sheet-row strong {
  color: var(--color-ink);
  font-size: 12.5px;
}

.dgt-btn-generate {
  width: 100%;
  padding: 16px 20px;
  background: linear-gradient(110deg, #0066FF 0%, #0052cc 100%);
  color: #ffffff;
  border: none;
  border-radius: var(--radius-lg, 16px);
  font-size: 15.5px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(0, 102, 255, 0.32);
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.dgt-btn-generate:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 102, 255, 0.42);
}

.dgt-btn-generate:active {
  transform: scale(0.99);
}

.dgt-template-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md, 10px);
  color: var(--color-ink);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.15s ease;
}

.dgt-template-link:hover {
  background: #ffffff;
  border-color: var(--color-brand-blue);
  color: var(--color-brand-blue);
  box-shadow: 0 2px 8px rgba(11, 31, 75, 0.05);
}

@media (max-width: 900px) {
  .dgt-codes-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .dgt-doc-preview-card {
    position: static;
  }
}

@media (max-width: 600px) {
  .dgt-codes-grid {
    grid-template-columns: 1fr;
  }
  .dgt-hero-bar {
    padding: 14px;
  }
  .dgt-tab-card {
    width: 100%;
  }
}

/* ==========================================================================
   Coherent Modular Dashboard Tiles
   ========================================================================== */
.dashboard-dgt-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  padding: 20px 24px;
}

@media (max-width: 768px) {
  .dashboard-dgt-grid {
    grid-template-columns: 1fr;
  }
}

.dashboard-dgt-tile {
  display: flex;
  gap: 14px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg, 16px);
  padding: 18px;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.dashboard-dgt-tile:hover {
  background: #ffffff;
  border-color: var(--color-brand-blue);
  box-shadow: 0 4px 16px rgba(11, 31, 75, 0.06);
  transform: translateY(-2px);
}

.dashboard-dgt-tile .tile-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.dashboard-dgt-tile .tile-icon.blue {
  background: rgba(0, 102, 255, 0.1);
  color: var(--color-brand-blue);
}

.dashboard-dgt-tile .tile-icon.amber {
  background: rgba(249, 115, 22, 0.1);
  color: #ea580c;
}

.dashboard-dgt-tile .tile-content {
  display: flex;
  flex-direction: column;
}

.dashboard-dgt-tile .tile-content strong {
  font-size: 15px;
  color: var(--color-ink);
  line-height: 1.3;
}

.dashboard-dgt-tile .tile-content p {
  font-size: 12.5px;
  color: var(--color-text-secondary);
  line-height: 1.45;
  margin: 4px 0 10px;
}