/* ── Field validation error ────────────────────────────── */
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%      { transform: translateX(-6px); }
  40%      { transform: translateX(6px); }
  60%      { transform: translateX(-4px); }
  80%      { transform: translateX(4px); }
}
.field-error {
  border-color: var(--danger) !important;
  background: #fff5f5 !important;
  animation: shake 0.4s ease;
}
.field-error-label {
  color: var(--danger);
  font-size: 0.78rem;
  margin-top: 4px;
  display: block;
}

/* ── Variables ─────────────────────────────────────────── */
:root {
  --primary: #667eea;
  --primary-dark: #764ba2;
  --success: #28a745;
  --warning: #ffc107;
  --danger: #dc3545;
  --gray-100: #f8f9fa;
  --gray-200: #e0e0e0;
  --gray-500: #6c757d;
  --gray-700: #495057;
  --radius: 12px;
  --shadow: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.2);
  --gradient: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--gradient);
  min-height: 100vh;
  padding: 24px 16px;
  color: var(--gray-700);
}

/* ── Layout ────────────────────────────────────────────── */
.page-container {
  max-width: 860px;
  margin: 0 auto;
}

.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 40px;
  box-shadow: var(--shadow-lg);
  margin-bottom: 24px;
}

.card-sm {
  background: #fff;
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

/* ── Header / Nav ──────────────────────────────────────── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  color: #fff;
}

.site-logo {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.5px;
}

.site-logo span { opacity: 0.7; font-weight: 400; }

.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.75);
}

.breadcrumb a { color: #fff; text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb .sep { opacity: 0.5; }

/* ── Typography ────────────────────────────────────────── */
h1 { font-size: 1.8rem; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
h2 { font-size: 1.25rem; font-weight: 600; color: var(--gray-700); margin-bottom: 16px; }
h3 { font-size: 1rem; font-weight: 600; color: var(--gray-700); margin-bottom: 8px; }
.subtitle { color: var(--gray-500); margin-bottom: 28px; }
.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--primary);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--gray-200);
}

/* ── Form ──────────────────────────────────────────────── */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-grid .span-2 { grid-column: 1 / -1; }

.form-group { margin-bottom: 0; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-700);
  margin-bottom: 6px;
}
.form-group label .req { color: var(--danger); margin-left: 2px; }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 2px solid var(--gray-200);
  border-radius: 8px;
  font-size: 0.95rem;
  transition: border-color 0.2s;
  background: #fff;
  color: var(--gray-700);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.form-group textarea { resize: vertical; min-height: 80px; }

.form-section { margin-bottom: 32px; }

/* ── Buttons ───────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border: none;
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(0,0,0,0.15); }
.btn:active { transform: translateY(0); }
.btn:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-primary {
  background: var(--gradient);
  color: #fff;
}
.btn-primary:hover { box-shadow: 0 6px 20px rgba(102,126,234,0.5); }

.btn-outline {
  background: #fff;
  color: var(--primary);
  border: 2px solid var(--primary);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-lg { padding: 16px 40px; font-size: 1.1rem; width: 100%; justify-content: center; }

.btn-group { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 24px; }
.btn-group .btn-primary { flex: 1; justify-content: center; }

/* ── Badges / Status ───────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}
.badge-success { background: #d4edda; color: #155724; }
.badge-danger  { background: #f8d7da; color: #721c24; }
.badge-warning { background: #fff3cd; color: #856404; }
.badge-info    { background: #d1ecf1; color: #0c5460; }
.badge-neutral { background: var(--gray-200); color: var(--gray-500); }

/* ── Progress Bar ──────────────────────────────────────── */
.progress-wrap { margin-bottom: 24px; }
.progress-header { display: flex; justify-content: space-between; margin-bottom: 8px; font-size: 0.9rem; font-weight: 500; }
.progress-bar { height: 10px; background: var(--gray-200); border-radius: 999px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--gradient); border-radius: 999px; transition: width 0.4s ease; }

/* ── Document Row ──────────────────────────────────────── */
.doc-list { display: flex; flex-direction: column; gap: 10px; }

.doc-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  transition: border-color 0.2s;
}
.doc-row.uploaded { border-color: #c3e6cb; background: #f9fff9; }
.doc-row.missing  { border-color: var(--gray-200); }

.doc-icon { font-size: 1.4rem; flex-shrink: 0; }
.doc-info { flex: 1; min-width: 0; }
.doc-name { font-weight: 500; font-size: 0.95rem; }
.doc-file { font-size: 0.8rem; color: var(--gray-500); margin-top: 2px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.doc-action { flex-shrink: 0; }
.upload-label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: 2px solid var(--primary);
  border-radius: 8px;
  color: var(--primary);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s;
}
.upload-label:hover { background: rgba(102,126,234,0.08); }
.upload-input { display: none; }

/* ── Processing Steps ──────────────────────────────────── */
.step-list { display: flex; flex-direction: column; gap: 0; }
.step-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--gray-200);
}
.step-item:last-child { border-bottom: none; }

.step-icon {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.step-icon.done    { background: #d4edda; color: var(--success); }
.step-icon.active  { background: #cce5ff; color: #0056b3; animation: pulse 1.5s infinite; }
.step-icon.pending { background: var(--gray-200); color: var(--gray-500); }

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.1); opacity: 0.7; }
}

.step-info { flex: 1; }
.step-label { font-weight: 500; }
.step-time { font-size: 0.8rem; color: var(--gray-500); margin-top: 2px; }

/* ── Generated Document Cards ──────────────────────────── */
.doc-cards { display: grid; gap: 16px; }
.doc-card {
  border: 2px solid var(--gray-200);
  border-radius: 10px;
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.doc-card-icon { font-size: 2rem; flex-shrink: 0; }
.doc-card-info { flex: 1; }
.doc-card-name { font-weight: 600; margin-bottom: 4px; }
.doc-card-actions { display: flex; gap: 8px; }

/* ── Alert / Flash ─────────────────────────────────────── */
.alert {
  padding: 14px 20px;
  border-radius: 8px;
  margin-bottom: 20px;
  font-size: 0.95rem;
  display: none;
}
.alert.show { display: block; }
.alert-success { background: #d4edda; color: #155724; border: 1px solid #c3e6cb; }
.alert-error   { background: #f8d7da; color: #721c24; border: 1px solid #f5c6cb; }
.alert-info    { background: #d1ecf1; color: #0c5460; border: 1px solid #bee5eb; }

/* ── Landing Page ──────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 20px 0 36px;
}
.hero h1 { font-size: 2.2rem; color: #fff; margin-bottom: 12px; }
.hero p  { color: rgba(255,255,255,0.85); font-size: 1.1rem; margin-bottom: 40px; }

.service-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 32px;
}
.service-card {
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: 12px;
  padding: 20px;
  color: #fff;
  text-align: left;
}
.service-card h3 { font-size: 0.95rem; margin-bottom: 6px; }
.service-card p  { font-size: 0.82rem; opacity: 0.75; }
.service-num { font-size: 1.6rem; margin-bottom: 8px; }

.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-buttons .btn { min-width: 240px; }

/* ── Document Action Buttons ───────────────────────────── */
.btn-download,
.btn-delete,
.btn-process {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 12px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
}

.btn-download {
  background: #28a745;
  color: white;
}
.btn-download:hover {
  background: #218838;
  transform: translateY(-1px);
}

.btn-delete {
  background: #dc3545;
  color: white;
}
.btn-delete:hover {
  background: #c82333;
  transform: translateY(-1px);
}

.btn-process {
  background: #667eea;
  color: white;
}
.btn-process:hover {
  background: #5568d3;
  transform: translateY(-1px);
}

/* ── Responsive ────────────────────────────────────────── */
@media (max-width: 600px) {
  .card { padding: 24px 16px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .span-2 { grid-column: 1; }
  .service-grid { grid-template-columns: 1fr; }
  .cta-buttons { flex-direction: column; }
  .btn-group { flex-direction: column; }
  .doc-card { flex-wrap: wrap; }
}