/* ---------- Reset e base ---------- */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --primary: #6366f1;
  --primary-dark: #4f46e5;
  --primary-light: #a5b4fc;
  --accent: #ec4899;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --bg: #f8fafc;
  --bg-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --card-bg: #ffffff;
  --text: #0f172a;
  --text-muted: #64748b;
  --border: #e2e8f0;
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 20px 40px rgba(99, 102, 241, 0.15);
  --radius: 14px;
  --radius-sm: 8px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  min-height: 100vh;
  color: var(--text);
  line-height: 1.5;
  padding: 20px 16px 60px;
}

/* ---------- Layout principale ---------- */
.app {
  max-width: 880px;
  margin: 0 auto;
}

/* ---------- Hero / Header ---------- */
.hero {
  text-align: center;
  color: #fff;
  padding: 32px 16px 24px;
}

.hero h1 {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 8px;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

.subtitle {
  font-size: 1rem;
  opacity: 0.95;
}

.subtitle strong {
  background: rgba(255, 255, 255, 0.2);
  padding: 2px 8px;
  border-radius: 6px;
  font-weight: 600;
}

/* ---------- Tabs ---------- */
.tabs {
  display: flex;
  gap: 6px;
  background: rgba(255, 255, 255, 0.15);
  padding: 6px;
  border-radius: var(--radius);
  margin-bottom: 20px;
  backdrop-filter: blur(10px);
}

.tab {
  flex: 1;
  background: transparent;
  border: none;
  color: #fff;
  padding: 12px 16px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.25s ease;
}

.tab:hover {
  background: rgba(255, 255, 255, 0.1);
}

.tab.active {
  background: #fff;
  color: var(--primary-dark);
  box-shadow: var(--shadow-sm);
}

.tab-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ---------- Card ---------- */
.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-md);
  margin-bottom: 20px;
}

.card h2 {
  font-size: 1.25rem;
  margin-bottom: 16px;
  color: var(--text);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
  gap: 12px;
  flex-wrap: wrap;
}

.card-header h2 {
  margin-bottom: 0;
  display: flex;
  align-items: center;
  gap: 10px;
}

.badge {
  background: var(--primary);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
  min-width: 28px;
  text-align: center;
}

/* ---------- Form ---------- */
.esame-form,
.media-form {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
}

.esame-form {
  grid-template-columns: 1fr 1fr 1fr;
  align-items: end;
}

.esame-form > button {
  grid-column: 1 / -1;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.field input[type="text"],
.field input[type="number"] {
  padding: 12px 14px;
  font-size: 1rem;
  border: 2px solid var(--border);
  border-radius: var(--radius-sm);
  background: #fff;
  transition: all 0.2s ease;
  font-family: inherit;
  color: var(--text);
  width: 100%;
}

.field input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
}

.voto-wrapper {
  position: relative;
}

.lode-toggle {
  display: none;
  align-items: center;
  gap: 6px;
  margin-top: 6px;
  font-size: 0.85rem;
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
  user-select: none;
}

.lode-toggle.visible {
  display: flex;
}

.lode-toggle input {
  cursor: pointer;
  accent-color: var(--accent);
}

.hint {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 14px;
}

/* ---------- Buttons ---------- */
.btn {
  padding: 12px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all 0.2s ease;
  font-family: inherit;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(99, 102, 241, 0.4);
}

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

.btn-ghost {
  background: transparent;
  color: var(--danger);
  border: 1.5px solid var(--border);
}

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

.btn-icon {
  background: transparent;
  border: none;
  color: var(--danger);
  cursor: pointer;
  padding: 6px 10px;
  border-radius: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  transition: all 0.2s ease;
}

.btn-icon:hover {
  background: rgba(239, 68, 68, 0.1);
}

/* ---------- Tabella ---------- */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-sm);
}

#esami-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
}

#esami-table thead {
  background: linear-gradient(135deg, #f1f5f9 0%, #e2e8f0 100%);
}

#esami-table th {
  text-align: left;
  padding: 12px 14px;
  font-weight: 700;
  color: var(--text);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

#esami-table th:last-child {
  text-align: right;
}

#esami-table td {
  padding: 12px 14px;
  border-top: 1px solid var(--border);
}

#esami-table td:last-child {
  text-align: right;
}

#esami-table tbody tr {
  transition: background 0.15s ease;
}

#esami-table tbody tr:hover {
  background: #f8fafc;
}

.empty-msg {
  text-align: center;
  color: var(--text-muted);
  padding: 32px 16px;
  font-size: 0.95rem;
}

.voto-lode {
  display: inline-block;
  background: linear-gradient(135deg, var(--accent) 0%, #f59e0b 100%);
  color: #fff;
  font-size: 0.7rem;
  font-weight: 700;
  padding: 2px 6px;
  border-radius: 4px;
  margin-left: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* ---------- Risultati ---------- */
.results {
  background: linear-gradient(135deg, #fff 0%, #f0f4ff 100%);
  border: 2px solid var(--primary-light);
}

.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 14px;
  margin-bottom: 16px;
}

.result-item {
  background: #fff;
  padding: 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.result-item.highlight {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  color: #fff;
  border: none;
  grid-column: 1 / -1;
  text-align: center;
  padding: 24px 16px;
}

.result-item .label {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  opacity: 0.8;
}

.result-item.highlight .label {
  opacity: 0.95;
}

.result-item .value {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
}

.result-item.highlight .value {
  font-size: 3rem;
  font-weight: 900;
  line-height: 1;
  margin: 4px 0;
}

.result-item.highlight .suffix {
  font-size: 1.1rem;
  font-weight: 600;
  opacity: 0.9;
}

.lode-note {
  background: linear-gradient(135deg, #fef3c7 0%, #fde68a 100%);
  color: #78350f;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--warning);
  text-align: center;
  font-size: 0.95rem;
}

/* ---------- Footer ---------- */
.footer {
  text-align: center;
  color: rgba(255, 255, 255, 0.85);
  margin-top: 24px;
  font-size: 0.9rem;
}

.footer code {
  background: rgba(0, 0, 0, 0.2);
  padding: 4px 10px;
  border-radius: 6px;
  font-size: 0.85rem;
  font-weight: 600;
}

/* ---------- Responsive mobile ---------- */
@media (max-width: 640px) {
  body {
    padding: 12px 10px 40px;
  }

  .hero {
    padding: 20px 8px 16px;
  }

  .card {
    padding: 18px;
  }

  .esame-form {
    grid-template-columns: 1fr;
  }

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

  .result-item.highlight .value {
    font-size: 2.4rem;
  }

  .tab {
    font-size: 0.85rem;
    padding: 10px 8px;
  }
}

@media (max-width: 380px) {
  .results-grid {
    grid-template-columns: 1fr;
  }
}