/* ==========================================================================
   Alchatek AI Training Portal — Styles
   Brand tokens from Alchatek Design System
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Barlow+Condensed:wght@300;400;500;600;700;800&family=Barlow:wght@400;500;600;700&display=swap');

:root {
  /* Brand colors */
  --alk-black: #101921;
  --alk-red: #DA291C;
  --alk-gray: #757982;
  --alk-gray-light: #B2B4BE;
  --alk-white: #F4F5F0;
  --alk-pure-white: #FFFFFF;
  --alk-black-90: #272E35;
  --alk-black-80: #3E444A;
  --alk-red-dark: #B31E14;
  --alk-gray-ultralight: #E8E9EC;

  /* Semantic */
  --fg-1: var(--alk-black);
  --fg-2: #4A4D54;
  --fg-3: var(--alk-gray);
  --bg-1: var(--alk-pure-white);
  --bg-2: var(--alk-white);
  --bg-3: var(--alk-gray-ultralight);
  --border-1: #D7D9DE;

  /* Typography */
  --font-display: 'Barlow Condensed', 'Helvetica Neue', 'Arial Narrow', sans-serif;
  --font-body: 'Barlow Condensed', 'Helvetica Neue', 'Arial Narrow', sans-serif;
  --font-ui: 'Barlow', 'Helvetica Neue', Arial, sans-serif;

  /* Spacing */
  --sp-1: 4px; --sp-2: 8px; --sp-3: 12px; --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px; --sp-7: 48px; --sp-8: 64px;

  /* Misc */
  --radius-1: 2px;
  --radius-2: 4px;
  --shadow-1: 0 1px 2px rgba(16,25,33,0.08);
  --shadow-2: 0 2px 8px rgba(16,25,33,0.10);
  --shadow-3: 0 8px 24px rgba(16,25,33,0.14);
  --container-max: 1280px;
}

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

body {
  font-family: var(--font-body);
  font-weight: 300;
  font-size: 16px;
  line-height: 1.45;
  color: var(--fg-1);
  background: var(--bg-1);
  -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   LOGIN PAGE
   ========================================================================== */

.login-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--alk-black);
  padding: var(--sp-5);
}

.login-card {
  background: var(--alk-pure-white);
  width: 100%;
  max-width: 420px;
  padding: var(--sp-7) var(--sp-6);
  text-align: center;
}

.login-logo {
  height: 40px;
  margin-bottom: var(--sp-6);
}

.login-title {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  line-height: 1.1;
  color: var(--fg-1);
  margin-bottom: var(--sp-2);
}

.login-subtitle {
  font-size: 16px;
  color: var(--fg-2);
  margin-bottom: var(--sp-6);
  font-weight: 300;
}

.login-form { text-align: left; }

.form-label {
  display: block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-1);
  margin-bottom: var(--sp-2);
}

.form-input {
  display: block;
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  font-family: var(--font-ui);
  font-size: 16px;
  border: 1px solid var(--border-1);
  background: var(--bg-1);
  color: var(--fg-1);
  outline: none;
  transition: border-color 200ms;
}

.form-input:focus {
  border-color: var(--alk-red);
  box-shadow: 0 0 0 3px rgba(218,41,28,0.15);
}

.form-input::placeholder { color: var(--alk-gray-light); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: var(--sp-3) var(--sp-5);
  border: none;
  cursor: pointer;
  transition: all 200ms;
  width: 100%;
}

.btn-primary {
  background: var(--alk-red);
  color: var(--alk-pure-white);
}

.btn-primary:hover { background: var(--alk-red-dark); }
.btn-primary:disabled { background: var(--alk-gray-light); cursor: not-allowed; }

.btn-outline {
  background: transparent;
  color: var(--alk-red);
  border: 2px solid var(--alk-red);
}

.btn-outline:hover {
  background: var(--alk-red);
  color: var(--alk-pure-white);
}

.login-footer {
  margin-top: var(--sp-6);
  font-size: 14px;
  color: var(--fg-3);
}

/* Login states */
.login-state { display: none; }
.login-state.active { display: block; }

.login-check-email {
  padding: var(--sp-5) 0;
}

.login-check-email .icon-mail {
  font-size: 48px;
  margin-bottom: var(--sp-4);
}

.login-error {
  background: #FEF2F2;
  border: 1px solid #FECACA;
  color: #991B1B;
  padding: var(--sp-3) var(--sp-4);
  font-size: 14px;
  margin-top: var(--sp-3);
  display: none;
}

/* ==========================================================================
   APP LAYOUT
   ========================================================================== */

.app-page { display: flex; min-height: 100vh; }

/* Sidebar */
.sidebar {
  width: 280px;
  background: var(--alk-black);
  color: var(--alk-white);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
}

.sidebar-header {
  padding: var(--sp-5);
  border-bottom: 1px solid var(--alk-black-80);
}

.sidebar-logo { height: 28px; }

.sidebar-label {
  display: block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--alk-gray);
  margin-top: var(--sp-3);
}

.sidebar-nav {
  flex: 1;
  padding: var(--sp-4) 0;
  overflow-y: auto;
}

.nav-section-label {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--alk-gray);
  padding: var(--sp-4) var(--sp-5) var(--sp-2);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-5);
  color: var(--alk-gray-light);
  font-family: var(--font-body);
  font-weight: 500;
  font-size: 15px;
  cursor: pointer;
  transition: all 150ms;
  text-decoration: none;
  border: none;
  background: none;
  width: 100%;
  text-align: left;
}

.nav-item:hover { color: var(--alk-pure-white); background: var(--alk-black-90); }
.nav-item.active { color: var(--alk-pure-white); background: var(--alk-black-90); border-left: 3px solid var(--alk-red); }
.nav-item.completed .nav-icon { color: #22C55E; }
.nav-item.locked { opacity: 0.4; cursor: not-allowed; }

.nav-icon { font-size: 18px; width: 24px; text-align: center; flex-shrink: 0; }

.sidebar-footer {
  padding: var(--sp-4) var(--sp-5);
  border-top: 1px solid var(--alk-black-80);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}

.user-avatar {
  width: 32px;
  height: 32px;
  background: var(--alk-red);
  color: var(--alk-pure-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  flex-shrink: 0;
}

.user-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--alk-white);
}

.user-dept {
  font-size: 12px;
  color: var(--alk-gray);
}

/* Main content */
.main-content {
  flex: 1;
  margin-left: 280px;
  min-height: 100vh;
}

/* View switching */
.view { display: none; }
.view.active { display: block; }

.content-header {
  background: var(--bg-2);
  border-bottom: 1px solid var(--border-1);
  padding: var(--sp-5) var(--sp-6);
}

.content-header h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 28px;
  line-height: 1.1;
}

.content-header p {
  font-size: 16px;
  color: var(--fg-2);
  margin-top: var(--sp-1);
}

.content-body {
  padding: var(--sp-6);
  max-width: 800px;
}

/* ==========================================================================
   DASHBOARD
   ========================================================================== */

.dashboard-progress {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
}

.stat-card {
  background: var(--bg-2);
  border: 1px solid var(--border-1);
  padding: var(--sp-5);
}

.stat-label {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-3);
  margin-bottom: var(--sp-2);
}

.stat-value {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 36px;
  color: var(--fg-1);
}

.stat-value.accent { color: var(--alk-red); }

.progress-bar-container {
  background: var(--bg-3);
  height: 8px;
  width: 100%;
  margin-top: var(--sp-3);
}

.progress-bar-fill {
  height: 100%;
  background: var(--alk-red);
  transition: width 500ms;
}

/* Module cards on dashboard */
.module-cards {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.module-card {
  background: var(--bg-2);
  border: 1px solid var(--border-1);
  padding: var(--sp-5);
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  cursor: pointer;
  transition: all 150ms;
}

.module-card:hover { border-color: var(--alk-red); box-shadow: var(--shadow-2); }
.module-card.locked { opacity: 0.5; cursor: not-allowed; }
.module-card.locked:hover { border-color: var(--border-1); box-shadow: none; }

.module-number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 20px;
  flex-shrink: 0;
  background: var(--bg-3);
  color: var(--fg-2);
}

.module-card.completed .module-number {
  background: #22C55E;
  color: white;
}

.module-card.current .module-number {
  background: var(--alk-red);
  color: white;
}

.module-info { flex: 1; }

.module-info h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  margin-bottom: var(--sp-1);
}

.module-info p {
  font-size: 14px;
  color: var(--fg-2);
}

.module-time {
  font-size: 13px;
  color: var(--fg-3);
  flex-shrink: 0;
}

.module-status {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  padding: var(--sp-1) var(--sp-2);
  flex-shrink: 0;
}

.module-status.completed { background: #DCFCE7; color: #166534; }
.module-status.current { background: #FEF3C7; color: #92400E; }
.module-status.locked { background: var(--bg-3); color: var(--fg-3); }

/* ==========================================================================
   MODULE CONTENT
   ========================================================================== */

.module-content h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 24px;
  margin-bottom: var(--sp-4);
  margin-top: var(--sp-6);
}

.module-content h2:first-child { margin-top: 0; }

.module-content p {
  margin-bottom: var(--sp-4);
  font-size: 16px;
  line-height: 1.6;
}

.module-content ul, .module-content ol {
  margin-bottom: var(--sp-4);
  padding-left: var(--sp-5);
}

.module-content li {
  margin-bottom: var(--sp-2);
  font-size: 16px;
  line-height: 1.5;
}

/* Callout boxes */
.callout {
  padding: var(--sp-4) var(--sp-5);
  margin-bottom: var(--sp-5);
  border-left: 4px solid;
}

.callout-tip { background: #F0FDF4; border-color: #22C55E; }
.callout-warn { background: #FFFBEB; border-color: #F59E0B; }
.callout-danger { background: #FEF2F2; border-color: #EF4444; }
.callout-info { background: #EFF6FF; border-color: #3B82F6; }

.callout-title {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--sp-2);
}

/* Code / prompt blocks */
.prompt-block {
  background: var(--alk-black);
  color: var(--alk-white);
  padding: var(--sp-5);
  font-family: ui-monospace, 'SF Mono', Menlo, monospace;
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: var(--sp-5);
  white-space: pre-wrap;
  position: relative;
}

.prompt-label {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--alk-gray);
  margin-bottom: var(--sp-2);
  display: block;
}

/* Quiz scenario cards */
.scenario-card {
  background: var(--bg-2);
  border: 1px solid var(--border-1);
  padding: var(--sp-5);
  margin-bottom: var(--sp-4);
}

.scenario-question {
  font-weight: 500;
  font-size: 16px;
  margin-bottom: var(--sp-4);
}

.quiz-option {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--border-1);
  margin-bottom: var(--sp-2);
  cursor: pointer;
  transition: all 150ms;
  font-size: 15px;
}

.quiz-option:hover { border-color: var(--alk-red); background: #FEF2F2; }
.quiz-option.selected { border-color: var(--alk-red); background: #FEF2F2; }
.quiz-option.correct { border-color: #22C55E; background: #F0FDF4; }
.quiz-option.incorrect { border-color: #EF4444; background: #FEF2F2; }

.quiz-radio {
  width: 20px;
  height: 20px;
  border: 2px solid var(--border-1);
  border-radius: 50%;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.quiz-option.selected .quiz-radio {
  border-color: var(--alk-red);
}

.quiz-option.selected .quiz-radio::after {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--alk-red);
}

/* Module navigation */
.module-nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--sp-6);
  margin-top: var(--sp-6);
  border-top: 1px solid var(--border-1);
}

.module-nav .btn { width: auto; }

/* Completion checkmarks */
.check-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  padding: var(--sp-3) 0;
  font-size: 16px;
}

.check-box {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border-1);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  flex-shrink: 0;
  transition: all 150ms;
}

.check-box.checked {
  background: #22C55E;
  border-color: #22C55E;
  color: white;
}

/* ==========================================================================
   INTAKE BRIEF FORM
   ========================================================================== */

.brief-form { max-width: 640px; }

.form-group { margin-bottom: var(--sp-5); }

.form-textarea {
  display: block;
  width: 100%;
  padding: var(--sp-3) var(--sp-4);
  font-family: var(--font-ui);
  font-size: 15px;
  border: 1px solid var(--border-1);
  background: var(--bg-1);
  color: var(--fg-1);
  outline: none;
  resize: vertical;
  min-height: 80px;
  transition: border-color 200ms;
}

.form-textarea:focus {
  border-color: var(--alk-red);
  box-shadow: 0 0 0 3px rgba(218,41,28,0.15);
}

.form-hint {
  font-size: 13px;
  color: var(--fg-3);
  margin-top: var(--sp-1);
}

.checkbox-group {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}

.checkbox-item {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  font-size: 15px;
  cursor: pointer;
}

.checkbox-item input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--alk-red);
}

/* ==========================================================================
   QUIZ RESULTS
   ========================================================================== */

.results-card {
  background: var(--bg-2);
  border: 1px solid var(--border-1);
  padding: var(--sp-6);
  text-align: center;
  margin-bottom: var(--sp-5);
}

.results-score {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 64px;
  line-height: 1;
}

.results-pass { color: #22C55E; }
.results-fail { color: #EF4444; }

.results-detail {
  font-size: 16px;
  color: var(--fg-2);
  margin-top: var(--sp-3);
}

/* ==========================================================================
   MANAGER DASHBOARD
   ========================================================================== */

.team-table {
  width: 100%;
  border-collapse: collapse;
}

.team-table th {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--fg-3);
  text-align: left;
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 2px solid var(--alk-black);
}

.team-table td {
  padding: var(--sp-3) var(--sp-4);
  font-size: 15px;
  border-bottom: 1px solid var(--border-1);
}

.status-badge {
  display: inline-block;
  font-family: var(--font-body);
  font-weight: 700;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 2px 8px;
}

.status-badge.certified { background: #DCFCE7; color: #166534; }
.status-badge.in-progress { background: #FEF3C7; color: #92400E; }
.status-badge.not-started { background: var(--bg-3); color: var(--fg-3); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */

@media (max-width: 768px) {
  .sidebar {
    position: fixed;
    left: -280px;
    transition: left 300ms;
  }
  .sidebar.open { left: 0; }
  .main-content { margin-left: 0; }

  .mobile-header {
    display: flex;
    align-items: center;
    gap: var(--sp-3);
    padding: var(--sp-4);
    background: var(--alk-black);
  }

  .hamburger {
    background: none;
    border: none;
    color: var(--alk-white);
    font-size: 24px;
    cursor: pointer;
  }

  .mobile-logo { height: 24px; }

  .dashboard-progress { grid-template-columns: 1fr 1fr; }
  .content-body { padding: var(--sp-4); }
}

@media (min-width: 769px) {
  .mobile-header { display: none; }
}

/* Overlay for mobile sidebar */
.sidebar-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99;
}

.sidebar-overlay.active { display: block; }