/* ==========================================================================
   RGW - Junta de Vecinos Plaza Mayor de Quilicura
   Main Stylesheet (app.css) - Vanilla CSS3 Modern, Soft, Responsive
   ========================================================================== */

:root {
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --bg-page: #f8fafc;
  --bg-card: #ffffff;
  --border-color: #e2e8f0;
  --border-focus: #3b82f6;
  --text-main: #1e293b;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-light: #eff6ff;
  --accent: #059669;
  --danger: #dc2626;
  --danger-light: #fef2f2;
  --warning: #d97706;
  --warning-light: #fffbeb;
  --success: #16a34a;
  --success-light: #f0fdf4;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --transition: all 0.2s ease-in-out;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-page);
  color: var(--text-main);
  line-height: 1.5;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

/* Container */
.container {
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 24px 16px;
  flex: 1;
}

/* Header */
.app-header {
  text-align: center;
  margin-bottom: 28px;
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background-color: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 9999px;
  margin-bottom: 12px;
  border: 1px solid rgba(37, 99, 235, 0.15);
}

.app-title {
  font-size: 26px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.app-subtitle {
  font-size: 16px;
  font-weight: 500;
  color: var(--primary);
  margin-bottom: 10px;
}

.app-description {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 580px;
  margin: 0 auto;
  line-height: 1.6;
}

/* Card */
.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: var(--shadow-md);
}

@media (max-width: 640px) {
  .form-card {
    padding: 20px 16px;
  }
  .app-title {
    font-size: 22px;
  }
}

/* Form sections */
.form-section {
  margin-bottom: 28px;
}

.section-title {
  font-size: 15px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  gap: 8px;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.form-group {
  margin-bottom: 18px;
  display: flex;
  flex-direction: column;
}

.form-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 6px;
}

.required-mark {
  color: var(--danger);
  margin-left: 2px;
}

.input-wrapper {
  position: relative;
  display: flex;
  align-items: center;
}

.input-icon {
  position: absolute;
  left: 12px;
  color: var(--text-light);
  font-size: 18px;
  pointer-events: none;
}

.form-control {
  width: 100%;
  padding: 10px 14px;
  padding-left: 38px;
  font-size: 14.5px;
  font-family: inherit;
  color: var(--text-main);
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-control.has-error {
  border-color: var(--danger);
  background-color: #fffafb;
}

.form-control.has-error:focus {
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.15);
}

select.form-control {
  cursor: pointer;
  appearance: auto;
}

.field-help {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 5px;
  line-height: 1.4;
}

.field-error {
  font-size: 12.5px;
  color: var(--danger);
  margin-top: 5px;
  font-weight: 500;
}

/* WhatsApp Groups Checkbox Cards */
.groups-grid {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.group-card-label {
  display: flex;
  align-items: flex-start;
  padding: 12px 14px;
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.group-card-label:hover {
  background-color: #f8fafc;
  border-color: #cbd5e1;
}

.group-checkbox {
  margin-top: 3px;
  margin-right: 12px;
  width: 18px;
  height: 18px;
  accent-color: var(--primary);
  cursor: pointer;
}

.group-card-content {
  flex: 1;
}

.group-name {
  font-size: 14.5px;
  font-weight: 600;
  color: #0f172a;
  display: flex;
  align-items: center;
  gap: 6px;
}

.group-desc {
  font-size: 12.5px;
  color: var(--text-muted);
  margin-top: 2px;
}

.group-card-label.checked {
  border-color: var(--primary);
  background-color: var(--primary-light);
}

/* Legal & Privacy notices */
.legal-box {
  background-color: #f1f5f9;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 14px 16px;
  font-size: 13px;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 14px;
}

.legal-box strong {
  color: var(--text-main);
  display: block;
  margin-bottom: 4px;
}

.checkbox-consent {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text-main);
  margin-bottom: 14px;
  cursor: pointer;
}

.checkbox-consent input[type="checkbox"] {
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--primary);
  cursor: pointer;
}

.checkbox-consent a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* Honeypot hidden input */
.honeypot-field {
  position: absolute;
  opacity: 0;
  left: -9999px;
  width: 0;
  height: 0;
  tabindex: -1;
  pointer-events: none;
}

/* Button & Loading */
.btn-submit {
  width: 100%;
  padding: 14px 20px;
  font-size: 16px;
  font-weight: 600;
  font-family: inherit;
  color: #ffffff;
  background-color: var(--primary);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.btn-submit:hover:not(:disabled) {
  background-color: var(--primary-hover);
  box-shadow: var(--shadow-md);
}

.btn-submit:disabled {
  opacity: 0.65;
  cursor: not-allowed;
}

.spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 50%;
  border-top-color: #ffffff;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.btn-submit.loading .spinner {
  display: inline-block;
}

.btn-submit.loading .btn-text {
  opacity: 0.8;
}

/* Alerts */
.alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 14px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.alert-danger {
  background-color: var(--danger-light);
  border: 1px solid #fecaca;
  color: #991b1b;
}

.alert-success {
  background-color: var(--success-light);
  border: 1px solid #bbf7d0;
  color: #166534;
}

/* Confirmation Screen */
.confirmation-box {
  text-align: center;
  padding: 30px 10px;
}

.confirmation-icon {
  width: 64px;
  height: 64px;
  background-color: #dcfce7;
  color: var(--success);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  margin-bottom: 18px;
}

.confirmation-title {
  font-size: 22px;
  font-weight: 700;
  color: #0f172a;
  margin-bottom: 10px;
}

.confirmation-message {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 520px;
  margin: 0 auto 24px auto;
}

.code-pill {
  display: inline-block;
  background-color: #f1f5f9;
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: var(--radius-md);
  font-family: monospace;
  font-size: 16px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 24px;
}

/* Footer */
.app-footer {
  text-align: center;
  padding: 24px 16px;
  font-size: 12.5px;
  color: var(--text-light);
  border-top: 1px solid var(--border-color);
  background-color: #ffffff;
}

.app-footer a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
}

.app-footer a:hover {
  text-decoration: underline;
  color: var(--primary);
}