/* =========================================================
   School Portal Finder – Premium Frontend Stylesheet
   ========================================================= */

/* ---------- Design Tokens ---------- */
:root {
  --spf-font: inherit;
  --spf-primary: #6366f1;
  --spf-primary-dark: #4f46e5;
  --spf-primary-light: #818cf8;
  --spf-primary-bg: rgba(99, 102, 241, 0.08);
  --spf-accent: #06b6d4;
  --spf-accent-dark: #0891b2;
  --spf-gray-50: #f9fafb;
  --spf-gray-100: #f3f4f6;
  --spf-gray-200: #e5e7eb;
  --spf-gray-300: #d1d5db;
  --spf-gray-400: #9ca3af;
  --spf-gray-500: #6b7280;
  --spf-gray-600: #4b5563;
  --spf-gray-700: #374151;
  --spf-gray-800: #1f2937;
  --spf-gray-900: #111827;
  --spf-success: #10b981;
  --spf-success-bg: rgba(16, 185, 129, 0.08);
  --spf-error: #ef4444;
  --spf-error-bg: rgba(239, 68, 68, 0.08);
  --spf-surface: #ffffff;
  --spf-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --spf-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
  --spf-shadow-lg: 0 12px 40px rgba(0, 0, 0, 0.1);
  --spf-shadow-glow: 0 0 0 4px rgba(99, 102, 241, 0.15);
  --spf-radius-sm: 8px;
  --spf-radius-md: 14px;
  --spf-radius-lg: 20px;
  --spf-radius-xl: 28px;
  --spf-radius-full: 999px;
  --spf-transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset link styles inside wrapper ---------- */
.spf-wrapper *,
.spf-wrapper *::before,
.spf-wrapper *::after {
  box-sizing: border-box;
}

.spf-wrapper a,
.spf-wrapper a:visited,
.spf-wrapper a:hover,
.spf-wrapper a:focus,
.spf-wrapper a:active {
  text-decoration: none !important;
  outline: none;
}

/* ---------- Wrapper ---------- */
.spf-wrapper {
  max-width: 1140px;
  margin: 0 auto;
  padding: 24px 16px 48px;
  font-family: inherit;
  color: inherit;
  -webkit-font-smoothing: antialiased;
}

/* ---------- Hero ---------- */
.spf-hero {
  position: relative;
  background: linear-gradient(135deg, #6366f1 0%, #8b5cf6 40%, #06b6d4 100%);
  border-radius: var(--spf-radius-xl);
  padding: 48px 32px 40px;
  margin-bottom: 28px;
  overflow: hidden;
  text-align: center;
}

.spf-hero::before {
  content: '';
  position: absolute;
  top: -60%;
  right: -30%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(255,255,255,0.12) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}

.spf-hero-title {
  position: relative;
  margin: 0 0 8px;
  font-size: 36px;
  font-weight: 800;
  color: #ffffff;
  letter-spacing: -0.5px;
  line-height: 1.15;
}

.spf-hero-subtitle {
  position: relative;
  margin: 0;
  font-size: 16px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  line-height: 1.5;
}

/* ---------- Section ---------- */
.spf-section {
  background: var(--spf-surface);
  border: 1px solid var(--spf-gray-200);
  border-radius: var(--spf-radius-lg);
  padding: 32px 28px;
  box-shadow: var(--spf-shadow-md);
}

/* ---------- Search form ---------- */
.spf-search-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

@media (min-width: 680px) {
  .spf-search-form {
    grid-template-columns: 1fr 1fr auto;
    align-items: end;
  }
}

.spf-form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.spf-form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--spf-gray-600);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.spf-form-group input,
.spf-form-group select {
  width: 100%;
  min-height: 48px;
  border: 1.5px solid var(--spf-gray-300);
  border-radius: var(--spf-radius-md);
  padding: 10px 14px;
  font-family: inherit;
  font-size: 15px;
  color: var(--spf-gray-800);
  background: var(--spf-surface);
  transition: border-color var(--spf-transition), box-shadow var(--spf-transition);
  outline: none;
  box-sizing: border-box;
  appearance: none;
  -webkit-appearance: none;
}

.spf-form-group select {
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%236B7280' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 38px;
}

.spf-form-group input:focus,
.spf-form-group select:focus {
  border-color: var(--spf-primary);
  box-shadow: var(--spf-shadow-glow);
}

.spf-form-group input::placeholder {
  color: var(--spf-gray-400);
}

/* ---------- Buttons (GLOBAL RESET) ---------- */
.spf-btn,
.spf-btn:link,
.spf-btn:visited,
.spf-btn:hover,
.spf-btn:focus,
.spf-btn:active,
.spf-btn-portal,
.spf-btn-portal:link,
.spf-btn-portal:visited,
.spf-btn-portal:hover,
.spf-btn-portal:focus,
.spf-btn-portal:active {
  text-decoration: none !important;
  border-bottom: none !important;
  box-shadow: none;
  outline: none;
}

.spf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 12px 24px;
  border: none;
  border-radius: var(--spf-radius-md);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--spf-transition);
  white-space: nowrap;
  line-height: 1.2;
}

.spf-btn svg {
  flex-shrink: 0;
}

.spf-btn-primary {
  background: linear-gradient(135deg, var(--spf-primary), var(--spf-primary-dark));
  color: #ffffff !important;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.35);
}

.spf-btn-primary:hover {
  background: linear-gradient(135deg, var(--spf-primary-dark), #4338ca);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.4);
  transform: translateY(-1px);
  color: #ffffff !important;
}

.spf-btn-primary:active {
  transform: translateY(0);
}

/* ---------- Portal Buttons ---------- */
.spf-btn-portal {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  background: linear-gradient(135deg, var(--spf-primary), var(--spf-accent));
  color: #ffffff !important;
  padding: 10px 22px;
  min-height: 40px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: var(--spf-radius-full);
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
  cursor: pointer;
  transition: all var(--spf-transition);
  line-height: 1.2;
  white-space: nowrap;
}

.spf-btn-portal:hover {
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.45);
  transform: translateY(-2px);
  color: #ffffff !important;
}

.spf-btn-portal.is-disabled,
.spf-btn-portal[aria-disabled="true"] {
  background: var(--spf-gray-200) !important;
  color: var(--spf-gray-400) !important;
  box-shadow: none !important;
  cursor: not-allowed;
  pointer-events: none;
  transform: none !important;
}

.spf-btn-full {
  width: 100%;
}

/* ---------- Switcher ---------- */
.spf-tab-switcher {
  display: inline-flex;
  gap: 4px;
  background: var(--spf-gray-100);
  border-radius: var(--spf-radius-full);
  padding: 4px;
  margin-bottom: 24px;
}

.spf-tab-btn {
  border: 0;
  background: transparent;
  color: var(--spf-gray-600);
  border-radius: var(--spf-radius-full);
  padding: 10px 20px;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  font-size: 14px;
  transition: all var(--spf-transition);
}

.spf-tab-btn.is-active {
  background: var(--spf-primary);
  color: #ffffff;
  box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

/* ---------- Submit form ---------- */
.spf-submit-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.spf-submit-form[hidden] {
  display: none !important;
}

/* ---------- File Upload Zone ---------- */
.spf-file-zone {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 10px;
  border: 2px dashed var(--spf-gray-300);
  border-radius: var(--spf-radius-md);
  padding: 32px 24px;
  text-align: center;
  cursor: pointer;
  transition: all var(--spf-transition);
  background: var(--spf-gray-50);
  position: relative;
}

.spf-file-zone:hover {
  border-color: var(--spf-primary);
  background: var(--spf-primary-bg);
}

.spf-file-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
}

.spf-file-zone-icon { font-size: 32px; line-height: 1; }
.spf-file-zone-text { font-size: 14px; color: var(--spf-gray-500); font-weight: 500; }
.spf-file-zone-text strong { color: var(--spf-primary); }

/* ---------- Results Count ---------- */
.spf-results-count { margin-bottom: 16px; }

.spf-count-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--spf-primary-bg);
  color: var(--spf-primary-dark);
  border-radius: var(--spf-radius-full);
  font-size: 14px;
  font-weight: 600;
}

/* ---------- Results grid ---------- */
.spf-results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 16px;
}

/* ---------- School Card ---------- */
.spf-card {
  background: var(--spf-surface);
  border: 1px solid var(--spf-gray-200);
  border-radius: var(--spf-radius-lg);
  padding: 24px;
  box-shadow: var(--spf-shadow-sm);
  transition: all var(--spf-transition);
  position: relative;
  overflow: hidden;
  animation: spfFadeUp 0.4s ease both;
}

.spf-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--spf-primary), var(--spf-accent));
  opacity: 0;
  transition: opacity var(--spf-transition);
}

.spf-card:hover {
  box-shadow: var(--spf-shadow-lg);
  transform: translateY(-3px);
  border-color: var(--spf-primary-light);
}

.spf-card:hover::before { opacity: 1; }

.spf-card-header {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 14px;
}

.spf-card-icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--spf-primary-bg), rgba(6, 182, 212, 0.08));
  border-radius: var(--spf-radius-sm);
  font-size: 22px;
  line-height: 1;
}

.spf-card-info { flex: 1; min-width: 0; }

.spf-card-title {
  margin: 0 0 4px;
  font-size: 17px;
  font-weight: 700;
  color: var(--spf-gray-900);
  line-height: 1.3;
}

.spf-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 14px;
  margin-bottom: 16px;
}

.spf-card-meta-item {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  color: var(--spf-gray-500);
  line-height: 1.4;
}

.spf-card-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding-top: 14px;
  border-top: 1px solid var(--spf-gray-100);
}

/* ---------- Loading ---------- */
.spf-loading-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 40px 20px;
}

.spf-loading-wrapper[hidden] { display: none !important; }

.spf-spinner {
  width: 24px;
  height: 24px;
  border: 3px solid var(--spf-gray-200);
  border-top-color: var(--spf-primary);
  border-radius: 50%;
  animation: spfSpin 0.7s linear infinite;
}

.spf-loading-text {
  font-size: 15px;
  font-weight: 600;
  color: var(--spf-primary);
}

/* ---------- Feedback ---------- */
.spf-error-msg {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: var(--spf-radius-md);
  background: var(--spf-error-bg);
  color: var(--spf-error);
  font-weight: 500;
  font-size: 14px;
  margin: 12px 0;
  border: 1px solid rgba(239, 68, 68, 0.15);
}
.spf-error-msg:empty { display: none; }

.spf-success-msg {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  border-radius: var(--spf-radius-md);
  background: var(--spf-success-bg);
  color: var(--spf-success);
  font-weight: 500;
  font-size: 14px;
  margin: 12px 0;
  border: 1px solid rgba(16, 185, 129, 0.15);
}
.spf-success-msg:empty { display: none; }

/* ---------- Empty state ---------- */
.spf-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 48px 24px;
  text-align: center;
}

.spf-empty-state-icon { font-size: 48px; opacity: 0.6; }
.spf-empty-state-text { font-size: 16px; font-weight: 500; color: var(--spf-gray-400); }
.spf-empty-state-hint { font-size: 14px; color: var(--spf-gray-400); }

/* ---------- Help text ---------- */
.spf-help-text {
  margin: 0;
  color: var(--spf-gray-500);
  font-size: 13px;
  line-height: 1.5;
}

/* ---------- Animations ---------- */
@keyframes spfFadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

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

.spf-card:nth-child(1) { animation-delay: 0s; }
.spf-card:nth-child(2) { animation-delay: 0.05s; }
.spf-card:nth-child(3) { animation-delay: 0.1s; }
.spf-card:nth-child(4) { animation-delay: 0.15s; }
.spf-card:nth-child(5) { animation-delay: 0.2s; }
.spf-card:nth-child(6) { animation-delay: 0.25s; }

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  .spf-hero {
    padding: 28px 18px 24px;
    border-radius: var(--spf-radius-lg);
  }
  .spf-hero-title { font-size: 24px; }
  .spf-hero-subtitle { font-size: 14px; }
  .spf-section {
    padding: 20px 14px;
    border-radius: var(--spf-radius-md);
  }
  .spf-card { padding: 16px; }
  .spf-card-header { gap: 10px; }
  .spf-card-icon { width: 36px; height: 36px; font-size: 18px; }
  .spf-card-title { font-size: 15px; }
  .spf-card-actions { gap: 6px; }
  .spf-btn-portal {
    padding: 8px 16px;
    font-size: 13px;
    min-height: 36px;
  }
  .spf-btn {
    min-height: 44px;
    padding: 10px 18px;
    font-size: 14px;
  }
  .spf-results {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .spf-tab-switcher { width: 100%; }
  .spf-tab-btn {
    flex: 1;
    text-align: center;
    padding: 10px 12px;
    font-size: 13px;
  }
}

@media (max-width: 400px) {
  .spf-wrapper { padding: 12px 10px 32px; }
  .spf-hero { padding: 24px 14px 20px; }
  .spf-hero-title { font-size: 22px; }
  .spf-card-actions {
    flex-direction: column;
  }
  .spf-btn-portal {
    width: 100%;
    justify-content: center;
  }
}

/* ---------- Frontend Upload Progress Bar ---------- */
.spf-submit-progress {
  margin: 16px 0 8px;
}

.spf-submit-progress[hidden] { display: none !important; }

.spf-progress-header-fe {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 6px;
}

.spf-progress-label-fe {
  font-size: 13px;
  font-weight: 500;
  color: inherit;
}

.spf-progress-pct-fe {
  font-size: 13px;
  font-weight: 700;
  color: var(--spf-primary);
}

.spf-progress-track-fe {
  width: 100%;
  height: 20px;
  background: var(--spf-gray-200);
  border-radius: var(--spf-radius-full);
  overflow: hidden;
}

.spf-progress-fill-fe {
  height: 100%;
  background: linear-gradient(90deg, var(--spf-primary), var(--spf-accent), var(--spf-primary));
  background-size: 200% 100%;
  border-radius: var(--spf-radius-full);
  transition: width 0.4s ease;
  animation: spfProgressShimmer 1.5s infinite linear;
}

@keyframes spfProgressShimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ---------- Frontend Submit Results ---------- */
.spf-submit-result {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  text-align: center;
  padding: 8px 0;
}

.spf-submit-result-icon {
  font-size: 32px;
  line-height: 1;
}

.spf-submit-result strong {
  font-size: 15px;
  color: inherit;
}

.spf-submit-result-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-top: 4px;
}

.spf-submit-result-stats span {
  display: inline-block;
  padding: 3px 10px;
  border-radius: var(--spf-radius-full);
  font-size: 12px;
  font-weight: 600;
  background: var(--spf-gray-100);
  color: inherit;
}

.spf-submit-dup-details {
  margin-top: 8px;
  text-align: left;
  width: 100%;
}

.spf-submit-dup-details summary {
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  color: var(--spf-primary);
}

.spf-submit-dup-details ul {
  margin: 6px 0 0;
  padding-left: 20px;
  font-size: 13px;
  line-height: 1.6;
}

/* ---------- Frontend Sample Downloads ---------- */
.spf-sample-downloads-fe {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 10px 0 14px;
}

.spf-btn-outline {
  background: transparent !important;
  color: var(--spf-primary) !important;
  border: 1.5px solid var(--spf-primary) !important;
}

.spf-btn-outline:hover {
  background: var(--spf-primary-bg) !important;
}

.spf-btn-sm {
  padding: 6px 14px !important;
  font-size: 13px !important;
  min-height: auto !important;
}

/* ---------- Frontend Preview Area ---------- */
#spf-bulk-preview-area {
  margin: 14px 0;
}

#spf-bulk-confirm-btn {
  margin-top: 8px;
}