/* 
   FAS23 Reporter  Dashboard UI
   Card-based, animated, modern
    */

/*  Tokens  */
:root {
  --primary:       #2563eb;
  --primary-dark:  #1d4ed8;
  --primary-light: #dbeafe;
  --primary-glow:  rgba(37,99,235,0.18);
  --accent:        #FF4D00;
  --accent-hover:  #e04400;
  --bg:            #0f172a;
  --bg-surface:    #1e293b;
  --bg-card:       #1e293b;
  --bg-card-hover: #263348;
  --bg-input:      #0f172a;
  --text:          #f1f5f9;
  --text-muted:    #94a3b8;
  --text-dim:      #64748b;
  --border:        #334155;
  --border-light:  rgba(255,255,255,0.06);
  --success:       #22c55e;
  --error:         #ef4444;
  --warning:       #f59e0b;
  --radius:        10px;
  --radius-lg:     16px;
  --radius-xl:     20px;
  --shadow:        0 1px 3px rgba(0,0,0,0.3), 0 1px 2px rgba(0,0,0,0.2);
  --shadow-lg:     0 20px 40px -12px rgba(0,0,0,0.5);
  --shadow-glow:   0 0 30px var(--primary-glow);
  --font:          'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --topbar-h:      60px;
  --transition:    0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/*  Reset & Base  */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; overflow: hidden; }
body {
  font-family: var(--font);
  font-size: 14px;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
input, select, button { font-family: inherit; font-size: inherit; }
#app { display: flex; flex-direction: column; height: 100vh; }
#main-app { display: flex; flex-direction: column; flex: 1; min-height: 0; }

/*  Subtle animated background  */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 40%, rgba(37,99,235,0.06), transparent),
    radial-gradient(ellipse 60% 40% at 80% 70%, rgba(255,77,0,0.04), transparent);
  pointer-events: none;
  z-index: 0;
}

/*  Top Bar  */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--topbar-h);
  padding: 0 28px;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-light);
  flex-shrink: 0;
  z-index: 100;
  position: relative;
}
.topbar-left, .topbar-right, .topbar-center {
  display: flex;
  align-items: center;
  gap: 12px;
}
.topbar-center { flex: 1; justify-content: center; }

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-icon {
  font-size: 22px;
  filter: drop-shadow(0 0 4px rgba(37,99,235,0.4));
}
.brand-text {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.5px;
  color: #fff;
}
.brand-accent {
  background: linear-gradient(135deg, var(--primary), #60a5fa);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.topbar-stats {
  display: flex;
  gap: 20px;
  font-size: 12px;
  color: var(--text-dim);
}
.topbar-stats .stat {
  display: flex;
  align-items: center;
  gap: 5px;
}
.topbar-stats .stat-val {
  color: var(--text);
  font-weight: 600;
}

.clock {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.user-badge {
  font-size: 12px;
  font-weight: 500;
  padding: 5px 14px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 20px;
  color: var(--text-muted);
}

/*  Loading Bar  */
.load-bar {
  padding: 18px 28px 14px;
  flex-shrink: 0;
  z-index: 10;
  position: relative;
  transition: opacity 0.4s ease, max-height 0.4s ease;
  max-height: 120px;
  overflow: hidden;
}
.load-bar.done {
  opacity: 0;
  max-height: 0;
  padding: 0 28px;
  pointer-events: none;
}
.load-bar-track {
  height: 4px;
  background: var(--bg-input);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 10px;
}
.load-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 4px;
  transition: width 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}
.load-bar-steps {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.load-step {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 3px 10px;
  border-radius: 12px;
  background: var(--bg-input);
  color: var(--text-dim);
  transition: all 0.3s ease;
}
.load-step.active {
  background: var(--primary);
  color: #fff;
}
.load-step.done {
  background: rgba(34,197,94,0.15);
  color: var(--success);
}
.load-step.done::before {
  content: '✓ ';
}
.load-step.error {
  background: rgba(239,68,68,0.15);
  color: var(--error);
}
.load-step.error::before {
  content: '✕ ';
}

/*  Main Scroll Area  */
.main-scroll {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  position: relative;
  z-index: 1;
  scroll-behavior: smooth;
}
.main-scroll::-webkit-scrollbar { width: 6px; }
.main-scroll::-webkit-scrollbar-track { background: transparent; }
.main-scroll::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

/*  Dashboard Section  */
.dashboard {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 32px 60px;
}
.dashboard-header {
  margin-bottom: 32px;
  text-align: center;
}
.section-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.8px;
  background: linear-gradient(135deg, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.section-sub {
  margin-top: 6px;
  font-size: 14px;
  color: var(--text-dim);
}

/*  Card Grid  */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 18px;
}

.grid-loading {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 60px 20px;
  color: var(--text-dim);
  font-size: 13px;
}

/*  Report Card  */
.report-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  cursor: pointer;
  transition: all var(--transition);
  overflow: hidden;
  user-select: none;
}
.report-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, transparent 50%, rgba(37,99,235,0.04));
  opacity: 0;
  transition: opacity var(--transition);
}
.report-card:hover {
  border-color: var(--primary);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow), var(--shadow-lg);
}
.report-card:hover::before { opacity: 1; }
.report-card:active {
  transform: translateY(-1px);
}

.card-icon {
  width: 50px;
  height: 50px;
  border-radius: 14px;
  background: rgba(37,99,235,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 16px;
  transition: all var(--transition);
}
.report-card:hover .card-icon {
  background: rgba(37,99,235,0.22);
  transform: scale(1.08);
}

.card-title {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 4px;
}
.card-desc {
  font-size: 12px;
  color: var(--text-dim);
  line-height: 1.4;
}

.card-fields {
  display: flex;
  flex-wrap: wrap;
  gap: 5px;
  margin-top: 14px;
}
.card-tag {
  font-size: 10px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 3px 8px;
  border-radius: 6px;
  background: rgba(255,255,255,0.05);
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,0.06);
}

/* Stagger animation for cards */
.report-card {
  animation: cardIn 0.4s ease both;
}
@keyframes cardIn {
  from { opacity: 0; transform: translateY(20px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

/*  Config Panel  */
.config-panel {
  max-width: 700px;
  margin: 0 auto;
  padding: 24px 32px 60px;
  animation: slideIn 0.35s ease;
}
.config-panel.hidden { display: none; }

@keyframes slideIn {
  from { opacity: 0; transform: translateX(30px); }
  to   { opacity: 1; transform: translateX(0); }
}

.config-back { margin-bottom: 20px; }
.back-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  padding: 6px 0;
  transition: color 0.15s;
}
.back-btn:hover { color: var(--primary); }

.config-hero {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 28px;
  padding: 24px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}
.hero-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  background: rgba(37,99,235,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  flex-shrink: 0;
}
.hero-text h2 {
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.3px;
}
.hero-text p {
  font-size: 13px;
  color: var(--text-dim);
  margin-top: 3px;
}

.config-body { position: relative; }

.config-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}
.config-card-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 24px;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-bottom: 1px solid var(--border);
  background: rgba(255,255,255,0.02);
}
.config-card-icon { font-size: 14px; }

/*  Form Fields  */
#config-form-area {
  padding: 24px;
}

.form-row {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 18px;
}
.form-row:last-of-type { margin-bottom: 0; }

.form-row label {
  flex: 0 0 120px;
  font-weight: 500;
  font-size: 13px;
  color: var(--text-muted);
  text-align: right;
}
.form-row .field {
  flex: 1;
  min-width: 0;
}

.form-row input[type="text"],
.form-row input[type="date"],
.form-row select {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-input);
  color: var(--text);
  font-size: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
  outline: none;
}
.form-row input:focus,
.form-row select:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-row select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 34px;
}

/* Date input color fix for dark theme */
input[type="date"]::-webkit-calendar-picker-indicator {
  filter: invert(0.7);
  cursor: pointer;
}

/* Mode radio group (FlightDiff) */
.mode-group {
  display: flex;
  gap: 6px;
}
.mode-btn {
  padding: 8px 20px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-input);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s;
}
.mode-btn:hover { border-color: var(--primary); color: var(--primary); }
.mode-btn.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 12px var(--primary-glow);
}

/* Number stepper (weeks) */
.week-stepper {
  display: flex;
  align-items: center;
  gap: 10px;
}
.week-stepper button {
  width: 36px;
  height: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-input);
  cursor: pointer;
  font-size: 18px;
  font-weight: 600;
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}
.week-stepper button:hover { border-color: var(--primary); color: var(--primary); }
.week-stepper .week-val {
  min-width: 44px;
  text-align: center;
  font-weight: 700;
  font-size: 18px;
  color: #fff;
}

/*  Form Actions / Export Button  */
.form-actions {
  margin-top: 24px;
  display: flex;
  gap: 12px;
}
.btn-export {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 32px;
  border: none;
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--accent), #ff6b2c);
  color: #fff;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.25s;
  position: relative;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.btn-export:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255,77,0,0.35);
}
.btn-export:active { transform: translateY(0); }
.btn-export:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}
.btn-export .btn-label { display: inline; }
.btn-export .btn-spinner { display: none; }
.btn-export.loading .btn-label { visibility: hidden; }
.btn-export.loading .btn-spinner {
  display: flex;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
}

/*  Spinners  */
.spinner {
  width: 20px; height: 20px;
  border: 2.5px solid rgba(255,255,255,0.15);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
.spinner-dark {
  border-color: rgba(255,255,255,0.1);
  border-top-color: var(--primary);
}
.spinner-lg { width: 32px; height: 32px; border-width: 3px; }
@keyframes spin { to { transform: rotate(360deg); } }

/*  Report Status Overlay  */
.report-status {
  margin-top: 20px;
  padding: 20px 24px;
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  animation: fadeSlideIn 0.3s ease;
}
.report-status.hidden { display: none; }
.status-content {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.status-header {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 600;
  font-size: 14px;
}
.status-icon {
  font-size: 18px;
}
.status-bar-track {
  height: 6px;
  background: var(--bg-input);
  border-radius: 6px;
  overflow: hidden;
}
.status-bar-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  border-radius: 6px;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}
.status-steps {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}
.status-step {
  font-size: 11px;
  font-weight: 500;
  padding: 3px 10px;
  border-radius: 12px;
  background: var(--bg-input);
  color: var(--text-dim);
  transition: all 0.3s ease;
}
.status-step.active {
  background: var(--primary);
  color: #fff;
  animation: pulse-step 1.2s ease infinite;
}
.status-step.done {
  background: rgba(34,197,94,0.15);
  color: var(--success);
}
.status-step.done::before { content: '\2713 '; }
.status-step.error {
  background: rgba(239,68,68,0.15);
  color: var(--error);
}
@keyframes pulse-step {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.7; }
}
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/*  Toast Notifications  */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column-reverse;
  gap: 10px;
  z-index: 9999;
  pointer-events: none;
}
.toast {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: var(--radius);
  background: var(--bg-surface);
  color: #fff;
  font-size: 13px;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  animation: toastIn 0.3s ease;
  pointer-events: auto;
  max-width: 400px;
  border: 1px solid var(--border);
}
.toast.success { border-left: 4px solid var(--success); }
.toast.error   { border-left: 4px solid var(--error); }
.toast.info    { border-left: 4px solid var(--primary); }
.toast-icon { font-size: 16px; flex-shrink: 0; }
.toast.leaving { animation: toastOut 0.25s ease forwards; }
@keyframes toastIn  { from { opacity: 0; transform: translateY(12px) scale(0.96); } }
@keyframes toastOut { to   { opacity: 0; transform: translateY(-8px) scale(0.96); } }

/*  Responsive  */
@media (max-width: 768px) {
  .dashboard { padding: 24px 16px 40px; }
  .card-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .config-panel { padding: 16px 16px 40px; }
  .config-hero { flex-direction: column; text-align: center; padding: 20px; }
  .form-row { flex-direction: column; align-items: flex-start; gap: 6px; }
  .form-row label { flex: none; text-align: left; }
}
@media (max-width: 500px) {
  .card-grid { grid-template-columns: 1fr; }
  .topbar-center { display: none; }
}

/*  Utility  */
.hidden { display: none !important; }
.fade-in { animation: fadeIn 0.25s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

/*  Pulse ring on generating  */
.pulse-ring {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--success);
  position: relative;
}
.pulse-ring::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  border: 2px solid var(--success);
  animation: pulse 1.5s ease infinite;
}
@keyframes pulse {
  0%   { transform: scale(1); opacity: 0.6; }
  100% { transform: scale(2); opacity: 0; }
}

/* ═══════════════════════════════════════════════════
   Login Screen
   ═══════════════════════════════════════════════════ */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 100vh;
  background: var(--bg);
  background-image:
    radial-gradient(ellipse at 20% 50%, rgba(37,99,235,0.08) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 20%, rgba(255,77,0,0.06) 0%, transparent 50%);
}
.login-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 36px 36px;
  width: 380px;
  max-width: 92vw;
  box-shadow: var(--shadow-lg);
  animation: fadeIn 0.4s ease;
}
.login-header {
  text-align: center;
  margin-bottom: 28px;
}
.login-logo {
  display: inline-block;
  font-size: 40px;
  margin-bottom: 8px;
  filter: drop-shadow(0 0 12px var(--primary-glow));
}
.login-header h1 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text);
  margin: 0;
}
.login-sub {
  color: var(--text-muted);
  font-size: 13px;
  margin-top: 4px;
}
.login-field {
  margin-bottom: 16px;
}
.login-field label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 6px;
}
.login-field input {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text);
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.login-field input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}
.login-error {
  background: rgba(239,68,68,0.12);
  color: var(--error);
  border-radius: var(--radius);
  padding: 8px 12px;
  font-size: 13px;
  margin-bottom: 12px;
  text-align: center;
}
.login-btn {
  width: 100%;
  padding: 12px;
  border-radius: var(--radius);
  border: none;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: background var(--transition), box-shadow var(--transition);
}
.login-btn:hover { background: var(--primary-dark); box-shadow: var(--shadow-glow); }
.login-btn:disabled { opacity: 0.7; cursor: not-allowed; }
.login-btn-spinner .spinner {
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.login-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 20px 0;
  color: var(--text-dim);
  font-size: 12px;
}
.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}
.login-azure-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 10px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-input);
  color: var(--text);
  font-weight: 500;
  font-size: 14px;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition), border-color var(--transition);
}
.login-azure-btn:hover {
  background: var(--bg-card-hover);
  border-color: var(--text-dim);
}

/* Logout button in topbar */
.logout-btn {
  background: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
  border-radius: 6px;
  padding: 4px 10px;
  font-size: 16px;
  cursor: pointer;
  transition: color var(--transition), border-color var(--transition);
  margin-left: 8px;
}
.logout-btn:hover {
  color: var(--error);
  border-color: var(--error);
}