/* ============================================
   PROMPT PER UMANI — Stylesheet
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

:root {
  --color-bg: #ffffff;
  --color-surface: #f9fafb;
  --color-border: #e5e7eb;
  --color-text: #111827;
  --color-text-secondary: #6b7280;
  --color-accent: #4f46e5;
  --color-accent-hover: #4338ca;
  --color-accent-light: #eef2ff;
  --color-success: #22c55e;
  --color-warning: #f59e0b;
  --color-danger: #ef4444;
  --radius: 10px;
  --radius-sm: 6px;
  --shadow: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --transition: 0.15s ease;
  --max-width: 1100px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: var(--font);
  cursor: pointer;
  border: none;
  background: none;
}

/* --- Layout --- */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
}

/* --- Navbar --- */
.navbar {
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.navbar-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.navbar-logo span {
  color: var(--color-accent);
}

.navbar-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.navbar-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--transition), background var(--transition);
}

.navbar-links a:hover,
.navbar-links a.active {
  color: var(--color-text);
  background: var(--color-surface);
}

/* --- Hero --- */
.hero {
  padding: 64px 20px 48px;
  text-align: center;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: 16px;
}

.hero h1 em {
  font-style: normal;
  color: var(--color-accent);
}

.hero-sub {
  font-size: 1.1rem;
  color: var(--color-text-secondary);
  max-width: 560px;
  margin: 0 auto 32px;
}

/* --- Search Bar --- */
.search-wrap {
  max-width: 560px;
  margin: 0 auto;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 14px 48px 14px 20px;
  font-size: 1rem;
  font-family: var(--font);
  border: 1.5px solid var(--color-border);
  border-radius: 50px;
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.search-input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.search-input::placeholder {
  color: var(--color-text-secondary);
}

.search-icon {
  position: absolute;
  right: 18px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-text-secondary);
  pointer-events: none;
}

/* --- Category Pills --- */
.categories-wrap {
  padding: 24px 0 8px;
}

.categories-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}

.cat-pill {
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1.5px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text-secondary);
  transition: all var(--transition);
  cursor: pointer;
}

.cat-pill:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: var(--color-accent-light);
}

.cat-pill.active {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

/* --- Section Header --- */
.section-header {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 20px 16px;
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
}

.section-title {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.section-count {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.link-all {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  transition: opacity var(--transition);
}

.link-all:hover {
  opacity: 0.75;
}

/* --- Prompt Card --- */
.cards-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px 48px;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
}

.prompt-card {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  gap: 12px;
  cursor: pointer;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
  text-decoration: none;
  color: inherit;
  position: relative;
}

/* Favorite button */
.fav-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1.5px solid var(--color-border);
  background: var(--color-bg);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  line-height: 1;
  color: var(--color-text-secondary);
  transition: border-color .15s, color .15s, background .15s, transform .15s;
  z-index: 1;
}
.fav-btn:hover {
  border-color: #f43f5e;
  color: #f43f5e;
  background: #fff1f2;
  transform: scale(1.1);
}
.fav-btn.saved {
  border-color: #f43f5e;
  color: #f43f5e;
  background: #fff1f2;
}
.fav-btn .fav-icon { pointer-events: none; }

.prompt-card:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 8px;
}

.card-cat {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-accent);
  background: var(--color-accent-light);
  padding: 3px 10px;
  border-radius: 50px;
}

.card-level {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-text-secondary);
}

.card-level::before {
  content: '•';
  margin-right: 5px;
}

.card-title {
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.3;
}

.card-desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  margin-top: 2px;
}

.tag {
  font-size: 0.72rem;
  color: var(--color-text-secondary);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 2px 8px;
  border-radius: 50px;
}

.card-cta {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-accent);
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 4px;
}

/* --- Prompt del Giorno --- */
.featured-section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 20px 8px;
}

.featured-card {
  border: 1.5px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 24px;
  background: var(--color-accent-light);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 20px;
  align-items: center;
  cursor: pointer;
  transition: box-shadow var(--transition);
  text-decoration: none;
  color: inherit;
}

.featured-card:hover {
  box-shadow: var(--shadow-md);
}

.featured-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 8px;
}

.featured-title {
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.featured-desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
}

.featured-arrow {
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  flex-shrink: 0;
}

/* --- Detail Page --- */
.detail-wrap {
  max-width: 780px;
  margin: 0 auto;
  padding: 40px 20px 80px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  transition: color var(--transition);
}

.back-link:hover {
  color: var(--color-text);
}

.detail-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.level-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  border: 1.5px solid;
}

.level-base { color: var(--color-success); border-color: var(--color-success); background: #f0fdf4; }
.level-intermedio { color: var(--color-warning); border-color: var(--color-warning); background: #fffbeb; }
.level-avanzato { color: var(--color-danger); border-color: var(--color-danger); background: #fef2f2; }

.detail-title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 12px;
}

.detail-desc {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 32px;
}

/* --- Sections --- */
.detail-section {
  margin-bottom: 32px;
}

.detail-section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: 10px;
}

.detail-section-title {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 10px;
}

/* --- Prompt Box --- */
.prompt-box {
  background: #0f172a;
  border-radius: var(--radius);
  padding: 24px;
  position: relative;
}

.prompt-box pre {
  font-family: 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 0.875rem;
  line-height: 1.7;
  color: #e2e8f0;
  white-space: pre-wrap;
  word-break: break-word;
}

.copy-btn {
  position: absolute;
  top: 14px;
  right: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: rgba(255,255,255,0.1);
  color: #e2e8f0;
  border-radius: var(--radius-sm);
  font-size: 0.8rem;
  font-weight: 500;
  transition: background var(--transition);
  font-family: var(--font);
}

.copy-btn:hover {
  background: rgba(255,255,255,0.18);
}

.copy-btn.copied {
  background: rgba(34, 197, 94, 0.25);
  color: #86efac;
}

/* --- Info Box --- */
.info-box {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 20px;
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--color-text);
}

.info-box.warning {
  background: #fffbeb;
  border-color: #fde68a;
}

/* --- Tags Detail --- */
.tags-detail {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* --- Correlati --- */
.correlati-section {
  margin-top: 56px;
  padding-top: 40px;
  border-top: 1px solid var(--color-border);
}

.correlati-title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 20px;
}

.correlati-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--color-text-secondary);
  grid-column: 1 / -1;
}

.empty-state p:first-child {
  font-size: 2rem;
  margin-bottom: 12px;
}

.empty-state p:last-child {
  font-size: 0.9rem;
}

/* --- Archive page header --- */
.archive-header {
  padding: 40px 20px 24px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.archive-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 8px;
}

.archive-header p {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* --- Footer --- */
footer {
  border-top: 1px solid var(--color-border);
  padding: 32px 20px;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.85rem;
}

/* --- Divider --- */
.divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0;
}

/* --- Responsive --- */
@media (max-width: 640px) {
  .navbar-links { display: none; }
  .hero { padding: 40px 20px 32px; }
  .hero h1 { font-size: 1.75rem; }
  .featured-card { grid-template-columns: 1fr; }
  .featured-arrow { display: none; }
  .cards-grid { grid-template-columns: 1fr; }
  .detail-wrap { padding: 24px 16px 60px; }
  .prompt-box pre { font-size: 0.8rem; }
  .section-header { flex-direction: column; gap: 4px; }
}

/* --- Utilities --- */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
}