/*
 * OriginQR — Shared Web App Design System Styles
 * Conforms strictly to DESIGN_SYSTEM.md and consumes tokens from web/css/tokens.css
 */

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-family);
  color: var(--color-body);
  background: var(--color-bg);
  font-size: 14px;
  line-height: 20px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography Scale (DESIGN_SYSTEM.md) */
h1, .h1 {
  font-size: 32px;
  line-height: 40px;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 var(--space-2);
  letter-spacing: -0.015em;
}

h2, .h2 {
  font-size: 24px;
  line-height: 32px;
  font-weight: 700;
  color: var(--color-ink);
  margin: 0 0 var(--space-3);
  letter-spacing: -0.01em;
}

h3, .h3 {
  font-size: 20px;
  line-height: 28px;
  font-weight: 600;
  color: var(--color-ink);
  margin: 0 0 var(--space-2);
}

.display-title {
  font-size: 40px;
  line-height: 48px;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-4);
}

.body-large {
  font-size: 16px;
  line-height: 24px;
  font-weight: 400;
  color: var(--color-body);
}

.caption {
  font-size: 12px;
  line-height: 16px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-primary-dark);
}

/* Header & Navigation */
.site-header {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 0 var(--space-5);
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: var(--shadow-sm);
}

.header-container {
  width: 100%;
  max-width: 1080px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
  text-decoration: none;
}

.logo:hover {
  text-decoration: none;
  color: var(--color-ink);
}

.logo-mark {
  width: 32px;
  height: 32px;
  display: block;
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.01em;
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.nav a {
  color: var(--color-body);
  font-size: 14px;
  font-weight: 500;
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  transition: all 0.15s ease;
}

.nav a:hover {
  color: var(--color-ink);
  background: var(--color-bg);
  text-decoration: none;
}

.nav a.active {
  color: var(--color-primary);
  background: var(--color-primary-light);
  font-weight: 600;
  text-decoration: none;
}

.header-cta {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Main Container */
main {
  max-width: 960px;
  margin: 0 auto;
  padding: var(--space-6) var(--space-5) var(--space-8);
}

/* Cards (DESIGN_SYSTEM.md) */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  margin-bottom: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.card h2 {
  margin: 0 0 var(--space-3);
}

/* Buttons (DESIGN_SYSTEM.md) */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  font-size: 14px;
  line-height: 20px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s ease;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-surface);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  color: var(--color-surface);
  text-decoration: none;
}

.btn-secondary {
  background: var(--color-surface);
  color: var(--color-ink);
  border-color: var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-bg);
  border-color: var(--color-muted);
  color: var(--color-ink);
  text-decoration: none;
}

.btn-danger {
  background: var(--color-danger-tint);
  color: var(--color-danger);
  border-color: rgba(220, 38, 38, 0.2);
}

.btn-danger:hover {
  background: var(--color-danger);
  color: var(--color-surface);
  border-color: var(--color-danger);
  text-decoration: none;
}

.btn-sm {
  padding: var(--space-2) var(--space-3);
  font-size: 13px;
  border-radius: var(--radius-sm);
}

.btn-lg {
  padding: var(--space-4) var(--space-6);
  font-size: 16px;
  border-radius: var(--radius-md);
}

.btn:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  pointer-events: none;
}

/* Forms & Inputs (DESIGN_SYSTEM.md) */
label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-ink);
  margin-bottom: var(--space-1);
}

label .req {
  color: var(--color-danger);
}

input[type="email"],
input[type="password"],
input[type="text"],
input[type="url"],
input[type="date"],
select,
textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: inherit;
  color: var(--color-ink);
  background: var(--color-surface);
  margin-bottom: var(--space-4);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input::placeholder,
textarea::placeholder {
  color: var(--color-muted);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(37, 84, 255, 0.18);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4);
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-3);
  margin-top: var(--space-4);
}

.form-actions.justify-between {
  justify-content: space-between;
}

.form-actions.right {
  justify-content: flex-end;
}

.form-actions.center {
  justify-content: center;
}

/* Validation Errors (distinct styling) */
.error {
  color: var(--color-danger);
  background: var(--color-danger-tint);
  border: 1px solid rgba(220, 38, 38, 0.25);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  font-size: 13px;
  font-weight: 500;
  margin-top: var(--space-3);
  margin-bottom: var(--space-3);
}

/* Field Hints */
.field-hint {
  font-size: 12px;
  color: var(--color-muted);
  margin-top: calc(-1 * var(--space-3));
  margin-bottom: var(--space-3);
}

.field-hint.valid {
  color: var(--color-success);
  font-weight: 600;
}

.field-hint.invalid {
  color: var(--color-danger);
  font-weight: 600;
}

/* Status Badges (DESIGN_SYSTEM.md exact spec) */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: 12px;
  line-height: 16px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.badge-compliant,
.badge-active {
  background: var(--color-success-tint);
  color: var(--color-success);
}

.badge-expired {
  background: var(--color-danger-tint);
  color: var(--color-danger);
}

.badge-unknown_lot,
.badge-missing_data,
.badge-not_registered,
.badge-warning {
  background: var(--color-warning-tint);
  color: var(--color-warning);
}

.badge-neutral {
  background: var(--color-neutral-tint);
  color: var(--color-neutral);
}

/* Hero Section (index.html) */
.hero {
  text-align: center;
  padding: var(--space-7) 0 var(--space-6);
  max-width: 720px;
  margin: 0 auto;
}

.hero h1 {
  font-size: 40px;
  line-height: 48px;
  font-weight: 700;
  color: var(--color-ink);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-4);
}

.hero p {
  font-size: 18px;
  line-height: 28px;
  color: var(--color-body);
  margin-bottom: var(--space-6);
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
}

.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.feature {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.feature h2 {
  font-size: 18px;
  line-height: 24px;
  margin-bottom: var(--space-2);
}

.feature p {
  color: var(--color-body);
  font-size: 14px;
  line-height: 20px;
  margin: 0;
}

/* Onboarding Wizard */
.step-indicator {
  display: flex;
  justify-content: space-between;
  list-style: none;
  padding: 0;
  margin: 0 0 var(--space-6);
  position: relative;
}

.step-indicator::before {
  content: "";
  position: absolute;
  top: 18px;
  left: 12%;
  right: 12%;
  height: 2px;
  background: var(--color-border);
  z-index: 1;
}

.step-item {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
}

.step-number {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 2px solid var(--color-border);
  color: var(--color-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  margin-bottom: var(--space-2);
  transition: all 0.2s ease;
}

.step-title {
  font-size: 12px;
  font-weight: 600;
  color: var(--color-muted);
}

.step-item.active .step-number {
  border-color: var(--color-primary);
  background: var(--color-primary);
  color: var(--color-surface);
  box-shadow: 0 0 0 4px var(--color-primary-light);
}

.step-item.active .step-title {
  color: var(--color-primary);
}

.step-item.completed .step-number {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.ai-explanation {
  background: var(--color-primary-light);
  border: 1px solid rgba(37, 84, 255, 0.2);
  border-left: 4px solid var(--color-primary);
  border-radius: var(--radius-sm);
  padding: var(--space-4);
  margin-bottom: var(--space-5);
}

.ai-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--color-primary);
  color: var(--color-surface);
  padding: 2px var(--space-2);
  border-radius: var(--radius-pill);
  margin-bottom: var(--space-2);
}

.ai-explanation p {
  margin: 0;
  font-size: 13px;
  color: var(--color-ink);
  line-height: 1.45;
}

.checkbox-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  margin-bottom: var(--space-4);
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-weight: 500;
  cursor: pointer;
  margin: 0;
}

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

.fsma-container {
  background: var(--color-bg);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-4);
}

.fsma-container h3 {
  margin: 0 0 var(--space-1);
  font-size: 15px;
  color: var(--color-ink);
}

/* Success Screen & QR */
.success-header {
  text-align: center;
  margin-bottom: var(--space-5);
}

.success-icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-pill);
  background: var(--color-success-tint);
  color: var(--color-success);
  font-size: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-3);
  border: 2px solid var(--color-success);
}

.qr-result-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-5);
  text-align: center;
  margin-bottom: var(--space-5);
}

.uri-container {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4);
  margin: var(--space-3) 0;
  word-break: break-all;
}

.uri-container code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 13px;
  color: var(--color-primary);
  font-weight: 600;
}

.qr-canvas-wrapper {
  margin: var(--space-4) 0 var(--space-3);
}

.qr-canvas-wrapper canvas {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  background: var(--color-surface);
  padding: var(--space-2);
}

.summary-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-5);
}

.summary-list {
  list-style: none;
  padding: 0;
  margin: var(--space-2) 0 0;
}

.summary-list li {
  padding: var(--space-2) 0;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}

.summary-list li:last-child {
  border-bottom: none;
}

/* Dashboard Component Styles */
.user-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  margin-bottom: var(--space-5);
}

.dashboard-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.product-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  margin-bottom: var(--space-4);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: border-color 0.15s ease;
}

.product-header {
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  background: var(--color-surface);
}

.product-header .info-main {
  flex: 1;
}

.product-header .title {
  font-weight: 700;
  font-size: 16px;
  line-height: 24px;
  color: var(--color-ink);
}

.product-header .sub {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: 2px;
}

.product-header .actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.lots-section {
  background: var(--color-bg);
  border-top: 1px solid var(--color-border);
  padding: var(--space-4) var(--space-5);
}

.lots-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-3);
}

.lots-header h4 {
  margin: 0;
  font-size: 13px;
  font-weight: 600;
  color: var(--color-body);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.lots-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.lots-table th,
.lots-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.lots-table th {
  background: var(--color-bg);
  font-weight: 600;
  color: var(--color-body);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.lots-table tr:last-child td {
  border-bottom: none;
}

/* Modals */
.modal-backdrop {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(11, 18, 32, 0.4);
  backdrop-filter: blur(4px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  padding: var(--space-4);
}

.modal-content {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 520px;
  padding: var(--space-5);
  box-shadow: var(--shadow-md);
  max-height: 90vh;
  overflow-y: auto;
}

.modal-content h3 {
  margin: 0 0 var(--space-4);
  font-size: 20px;
  line-height: 28px;
  font-weight: 700;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: var(--space-3);
  color: var(--color-ink);
}

/* Empty State */
.empty-state {
  text-align: center;
  padding: var(--space-7) var(--space-5);
  color: var(--color-body);
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  margin: var(--space-5) 0;
}

.empty-state h3 {
  margin: 0 0 var(--space-2);
  color: var(--color-ink);
}

.empty-state p {
  max-width: 440px;
  margin: 0 auto var(--space-5);
  color: var(--color-body);
}

/* Pricing Grid & Cards (billing.html) */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-5);
  margin: var(--space-5) 0;
}

.pricing-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

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

.pricing-card.featured {
  border: 2px solid var(--color-primary);
  background: linear-gradient(180deg, var(--color-surface) 0%, var(--color-primary-light) 100%);
}

.pricing-card.featured::before {
  content: "MOST POPULAR";
  position: absolute;
  top: -12px;
  right: var(--space-5);
  background: var(--color-primary);
  color: var(--color-surface);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
}

.pricing-header h3 {
  margin: 0 0 var(--space-1);
  font-size: 20px;
  color: var(--color-ink);
}

.pricing-price {
  font-size: 32px;
  line-height: 40px;
  font-weight: 800;
  color: var(--color-ink);
  margin: var(--space-3) 0 var(--space-1);
}

.pricing-price span {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-body);
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: var(--space-4) 0 var(--space-5);
  font-size: 14px;
}

.pricing-features li {
  padding: var(--space-2) 0;
  color: var(--color-ink);
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pricing-features li::before {
  content: "✓";
  color: var(--color-primary);
  font-weight: 800;
}

.subscription-banner {
  background: var(--color-primary-light);
  border: 1px solid rgba(37, 84, 255, 0.25);
  border-radius: var(--radius-lg);
  padding: var(--space-4) var(--space-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-5);
}

.subscription-info h3 {
  margin: 0 0 var(--space-1);
  font-size: 18px;
  color: var(--color-ink);
}

/* Footer */
.site-footer {
  text-align: center;
  padding: var(--space-6) var(--space-4);
  color: var(--color-muted);
  font-size: 13px;
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-8);
}

.site-footer a {
  color: var(--color-body);
}

.site-footer a:hover {
  color: var(--color-ink);
}

/* Utilities */
.muted {
  color: var(--color-muted);
}

.small {
  font-size: 12px;
}

.hidden {
  display: none !important;
}

/* Responsive Basics (375px mobile compatibility) */
@media (max-width: 640px) {
  .site-header {
    padding: 0 var(--space-3);
    height: auto;
    min-height: 56px;
  }
  
  .header-container {
    flex-wrap: wrap;
    padding: var(--space-2) 0;
  }

  .nav {
    order: 3;
    width: 100%;
    justify-content: space-around;
    border-top: 1px solid var(--color-border);
    padding-top: var(--space-2);
    margin-top: var(--space-1);
  }

  .user-bar, .subscription-banner, .dashboard-header-bar {
    flex-direction: column;
    align-items: flex-start;
  }

  .user-bar .form-actions, .subscription-banner div {
    width: 100%;
  }

  .hero h1 {
    font-size: 32px;
    line-height: 40px;
  }

  .pricing-grid {
    grid-template-columns: 1fr;
  }
}