/* ============================================
   FORMULE ASTRONOMICHE - CSS
   Tema: Celestiale / Astronomico
   Pagina: Strumenti per Astrofili
   ============================================ */

/* ============================================
   1. TITOLI E INTESTAZIONI
   ============================================ */
#tit {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  margin-bottom: var(--space-xl);
  position: relative;
}

#tit h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  background: var(--gradient-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.4;
  max-width: 900px;
  margin: 0 auto;
}

#tit::after {
  content: '';
  display: block;
  width: 120px;
  height: 4px;
  background: var(--gradient-aurora);
  border-radius: var(--radius-full);
  margin: var(--space-lg) auto 0;
}

/* Stile per h3 principali */
h3.styleFontface {
  font-family: var(--font-display) !important;
  font-size: 1.6rem !important;
  font-weight: 700 !important;
  color: var(--color-aurora-cyan) !important;
  margin: var(--space-xl) 0 var(--space-md) !important;
  padding-bottom: var(--space-sm);
  border-bottom: 2px solid rgba(0, 217, 255, 0.3);
  position: relative;
}

h3.styleFontface::before {
  content: '✦';
  margin-right: var(--space-sm);
  color: var(--color-aurora-purple);
  font-size: 1.2rem;
}

/* Stile per h4 */
h4.styleFontface {
  font-family: var(--font-display) !important;
  font-size: 1.2rem !important;
  font-weight: 600 !important;
  color: var(--color-aurora-purple) !important;
  margin: var(--space-lg) 0 var(--space-md) !important;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

h4.styleFontface::before {
  content: '◆';
  font-size: 0.8rem;
  color: var(--color-aurora-cyan);
}

/* ============================================
   2. CONTENUTO PRINCIPALE
   ============================================ */
#content {
  padding: var(--space-lg);
}

/* Paragrafi */
.pBlue,
.pRed,
p {
  color: var(--color-moon-glow) !important;
  font-family: var(--font-body) !important;
  font-size: 1rem !important;
  line-height: 1.8 !important;
  margin-bottom: var(--space-md) !important;
}

.pRed {
  color: var(--color-aurora-pink) !important;
}

/* Liste */
ul {
  list-style: none;
  padding: 0;
  margin: var(--space-md) 0;
}

ul li {
  position: relative;
  padding-left: var(--space-xl);
  margin-bottom: var(--space-sm);
  color: var(--color-moon-glow);
  font-size: 1rem;
  line-height: 1.7;
  float: none !important;
}

ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--color-aurora-cyan);
  font-weight: bold;
}

/* Links interni all'indice */
blockquote {
  background: var(--gradient-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-left: 4px solid var(--color-aurora-purple);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-lg) 0;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

blockquote p {
  margin-bottom: var(--space-xs) !important;
}

blockquote a {
  color: var(--color-aurora-cyan);
  text-decoration: none;
  transition: all var(--transition-base);
  display: inline-block;
  padding: var(--space-xs) 0;
}

blockquote a:hover {
  color: var(--color-aurora-purple);
  transform: translateX(5px);
  text-shadow: 0 0 10px var(--color-aurora-cyan);
}

blockquote li {
  float: none !important;
}

/* ============================================
   3. SEPARATORI (HR)
   ============================================ */
hr {
  border: none;
  height: 2px;
  background: linear-gradient(90deg, 
    transparent 0%, 
    var(--color-aurora-cyan) 20%, 
    var(--color-aurora-purple) 50%, 
    var(--color-aurora-pink) 80%, 
    transparent 100%);
  margin: var(--space-2xl) 0;
  opacity: 0.6;
}

/* ============================================
   4. CALCOLATORI / FORM
   ============================================ */
form > div,
div[style*="border: solid"],
div[style*="box-shadow"] {
  background: linear-gradient(145deg, 
    rgba(26, 31, 60, 0.8) 0%, 
    rgba(45, 43, 85, 0.6) 100%) !important;
  border: 1px solid rgba(168, 85, 247, 0.3) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: 
    0 10px 40px rgba(0, 0, 0, 0.3),
    0 0 30px rgba(168, 85, 247, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.1) !important;
  padding: var(--space-xl) !important;
  margin: var(--space-lg) 0 !important;
  backdrop-filter: blur(15px);
  -webkit-backdrop-filter: blur(15px);
  overflow-x: auto;
  transition: all var(--transition-base);
}

form > div:hover,
div[style*="border: solid"]:hover {
  border-color: rgba(0, 217, 255, 0.4) !important;
  box-shadow: 
    0 15px 50px rgba(0, 0, 0, 0.4),
    0 0 40px rgba(168, 85, 247, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.15) !important;
}

/* Tabelle dei calcolatori */
table {
  width: 100%;
  border-collapse: separate !important;
  border-spacing: 0;
  background: transparent !important;
}

table td {
  padding: var(--space-md) !important;
  border: none !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08) !important;
  color: var(--color-moon-glow);
  font-size: 0.95rem;
  vertical-align: middle;
}

table tr:last-child td {
  border-bottom: none !important;
}

table td[align="right"] {
  text-align: right;
  color: rgba(240, 240, 245, 0.8);
  padding-right: var(--space-lg) !important;
  font-weight: 500;
}

/* ============================================
   5. INPUT FIELDS
   ============================================ */
input[type="text"],
input:not([type]),
input[tabindex="1"] {
  background: rgba(255, 255, 255, 0.05) !important;
  border: 2px solid rgba(255, 255, 255, 0.15) !important;
  border-radius: var(--radius-md) !important;
  padding: var(--space-sm) var(--space-md) !important;
  color: var(--color-moon-white) !important;
  font-family: var(--font-mono) !important;
  font-size: 0.95rem !important;
  transition: all var(--transition-base) !important;
  width: auto;
  min-width: 120px;
}

input[type="text"]:focus,
input:not([type]):focus,
input[tabindex="1"]:focus {
  outline: none !important;
  border-color: var(--color-aurora-cyan) !important;
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.2) !important;
  background: rgba(255, 255, 255, 0.08) !important;
}

/* Input di output (risultati) */
input[tabindex="-1"],
input[style*="font-weight: 700"] {
  background: rgba(168, 85, 247, 0.15) !important;
  border: 2px solid rgba(168, 85, 247, 0.4) !important;
  color: var(--color-aurora-cyan) !important;
  font-weight: 700 !important;
  font-family: var(--font-mono) !important;
}

/* ============================================
   6. SELECT DROPDOWNS
   ============================================ */
select {
  background: rgba(255, 255, 255, 0.05) !important;
  border: 2px solid rgba(255, 255, 255, 0.15) !important;
  border-radius: var(--radius-md) !important;
  padding: var(--space-sm) var(--space-md) !important;
  color: var(--color-moon-white) !important;
  font-family: var(--font-body) !important;
  font-size: 0.95rem !important;
  cursor: pointer;
  transition: all var(--transition-base) !important;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2300d9ff' d='M6 8L1 3h10z'/%3E%3C/svg%3E") !important;
  background-repeat: no-repeat !important;
  background-position: right 10px center !important;
  padding-right: 35px !important;
}

select:focus {
  outline: none !important;
  border-color: var(--color-aurora-cyan) !important;
  box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.2) !important;
}

select option {
  background: var(--color-deep-space);
  color: var(--color-moon-white);
  padding: var(--space-sm);
}

/* ============================================
   7. BOTTONI
   ============================================ */
input[type="button"],
input[type="reset"] {
  padding: var(--space-sm) var(--space-lg) !important;
  font-family: var(--font-body) !important;
  font-size: 0.9rem !important;
  font-weight: 600 !important;
  text-transform: uppercase !important;
  letter-spacing: 0.05em !important;
  border: none !important;
  border-radius: var(--radius-md) !important;
  cursor: pointer !important;
  transition: all var(--transition-base) !important;
  margin: var(--space-xs) !important;
}

input[type="button"][value="Calcola"] {
  background: var(--gradient-aurora) !important;
  color: white !important;
  box-shadow: 0 4px 15px rgba(168, 85, 247, 0.3) !important;
}

input[type="button"][value="Calcola"]:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 6px 20px rgba(168, 85, 247, 0.4) !important;
}

input[type="button"][value="Calcola"]:active {
  transform: translateY(0) !important;
}

input[type="reset"] {
  background: rgba(255, 255, 255, 0.05) !important;
  color: var(--color-moon-glow) !important;
  border: 1px solid rgba(255, 255, 255, 0.2) !important;
}

input[type="reset"]:hover {
  background: rgba(255, 255, 255, 0.1) !important;
  border-color: rgba(255, 255, 255, 0.3) !important;
}

/* ============================================
   8. IMMAGINI
   ============================================ */
img[style*="border: solid"],
img[alt="sensori digitali"],
img[alt="formula"] {
  border: 1px solid rgba(168, 85, 247, 0.3) !important;
  border-radius: var(--radius-lg) !important;
  box-shadow: 
    0 10px 30px rgba(0, 0, 0, 0.3),
    0 0 20px rgba(168, 85, 247, 0.1) !important;
  padding: var(--space-md) !important;
  background: rgba(255, 255, 255, 0.02) !important;
  max-width: 100%;
  height: auto !important;
  display: block;
  margin: var(--space-lg) auto !important;
  transition: all var(--transition-base);
}

img[style*="border: solid"]:hover,
img[alt="sensori digitali"]:hover {
  transform: scale(1.02);
  box-shadow: 
    0 15px 40px rgba(0, 0, 0, 0.4),
    0 0 30px rgba(168, 85, 247, 0.2) !important;
}

/* Banner principale */
.img-fluid.m-auto.d-block {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  margin: var(--space-xl) auto !important;
  transition: all var(--transition-base);
}

.img-fluid.m-auto.d-block:hover {
  transform: scale(1.01);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.4);
}

/* ============================================
   9. LINK "TORNA ALL'INDICE"
   ============================================ */
a[href="#top"] {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-md);
  background: var(--gradient-card);
  border: 1px solid rgba(0, 217, 255, 0.3);
  border-radius: var(--radius-md);
  color: var(--color-aurora-cyan) !important;
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none !important;
  transition: all var(--transition-base);
}

a[href="#top"]::before {
  content: '↑';
  font-size: 1.1rem;
}

a[href="#top"]:hover {
  background: rgba(0, 217, 255, 0.1);
  border-color: var(--color-aurora-cyan);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(0, 217, 255, 0.2);
}

/* ============================================
   10. SEZIONE ASTRO-OTS
   ============================================ */
#astro-ots-1 {
  text-align: center;
  padding: var(--space-2xl) var(--space-lg);
  margin-top: var(--space-2xl);
  background: var(--gradient-card);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-xl);
}

#astro-ots-1 h2 {
  font-family: var(--font-display) !important;
  background: var(--gradient-aurora);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-lg);
}

#astro-ots-1 p {
  color: var(--color-moon-glow);
  margin-bottom: var(--space-sm);
}

#astro-ots-2 {
  text-align: center;
  padding: var(--space-lg);
}

#astro-ots-2 img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  transition: all var(--transition-base);
  width: 150px !important;
  height: auto !important;
}

#astro-ots-2 img:hover {
  transform: scale(1.1) rotate(2deg);
  box-shadow: var(--shadow-glow);
}

#astro-ots-2 p {
  font-family: var(--font-display) !important;
  font-size: 1.1rem !important;
  font-weight: 700 !important;
  color: var(--color-moon-white) !important;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: var(--space-md);
}

/* ============================================
   11. NOTE E AVVERTENZE
   ============================================ */
p[style*="font-weight:bold"],
p[style*="font-weight: bold"] {
  color: var(--color-aurora-pink) !important;
  font-weight: 700 !important;
  margin-top: var(--space-lg) !important;
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

p[style*="font-weight:bold"]::before,
p[style*="font-weight: bold"]::before {
  content: '⚠';
  font-size: 1.2rem;
}

/* ============================================
   12. FORMULA IMAGES
   ============================================ */
img[alt="formula"] {
  background: rgba(255, 255, 255, 0.95) !important;
  padding: var(--space-lg) !important;
  border-radius: var(--radius-md) !important;
  display: inline-block !important;
}

/* ============================================
   13. ANIMAZIONI
   ============================================ */
/* Fade in per le sezioni */
form > div,
blockquote,
h3.styleFontface {
  animation: fadeInUp 0.6s ease backwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Pulse per i risultati */
input[tabindex="-1"]:not(:placeholder-shown),
input[style*="font-weight: 700"]:not([value=""]) {
  animation: resultPulse 0.5s ease;
}

@keyframes resultPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

/* ============================================
   14. SCROLLBAR PERSONALIZZATA PER FORM
   ============================================ */
form > div::-webkit-scrollbar,
div[style*="overflow-x"]::-webkit-scrollbar {
  height: 8px;
}

form > div::-webkit-scrollbar-track,
div[style*="overflow-x"]::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-full);
}

form > div::-webkit-scrollbar-thumb,
div[style*="overflow-x"]::-webkit-scrollbar-thumb {
  background: var(--gradient-aurora);
  border-radius: var(--radius-full);
}

/* ============================================
   15. RESPONSIVE
   ============================================ */
@media (max-width: 991px) {
  table td {
    display: block;
    text-align: left !important;
    padding: var(--space-sm) var(--space-md) !important;
  }
  
  table td[align="right"] {
    padding-right: var(--space-md) !important;
    font-weight: 600;
    color: var(--color-aurora-cyan);
    margin-top: var(--space-md);
  }
  
  table tr {
    display: block;
    margin-bottom: var(--space-md);
    padding-bottom: var(--space-md);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  
  input[type="text"],
  input:not([type]),
  select {
    width: 100% !important;
    max-width: 100% !important;
  }
}

@media (max-width: 576px) {
  #tit h2 {
    font-size: 1.3rem;
  }
  
  h3.styleFontface {
    font-size: 1.3rem !important;
  }
  
  h4.styleFontface {
    font-size: 1.1rem !important;
  }
  
  form > div,
  div[style*="border: solid"] {
    padding: var(--space-md) !important;
  }
  
  input[type="button"],
  input[type="reset"] {
    width: 100% !important;
    margin: var(--space-xs) 0 !important;
  }
  
  blockquote {
    padding: var(--space-md);
  }
}

/* ============================================
   16. ACCESSIBILITÀ
   ============================================ */
@media (prefers-reduced-motion: reduce) {
  form > div,
  blockquote,
  h3.styleFontface,
  input[tabindex="-1"],
  input[style*="font-weight: 700"] {
    animation: none;
  }
}

/* Focus visible */
input:focus-visible,
select:focus-visible,
a:focus-visible {
  outline: 2px solid var(--color-aurora-cyan) !important;
  outline-offset: 3px !important;
}

/* High contrast */
@media (prefers-contrast: high) {
  form > div,
  div[style*="border: solid"] {
    border-color: white !important;
  }
  
  input[type="text"],
  input:not([type]),
  select {
    border-color: white !important;
  }
}

/* ============================================
   17. PRINT STYLES
   ============================================ */
@media print {
  form > div,
  div[style*="border: solid"] {
    background: white !important;
    border: 1px solid #ccc !important;
    box-shadow: none !important;
  }
  
  input[type="button"],
  input[type="reset"],
  a[href="#top"] {
    display: none !important;
  }
  
  h3.styleFontface,
  h4.styleFontface {
    color: black !important;
    -webkit-text-fill-color: black !important;
  }
}

/* ============================================
   18. EFFETTI SPECIALI EXTRA
   ============================================ */
/* Glow effect sui titoli delle formule */
h3.styleFontface {
  position: relative;
}

h3.styleFontface::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient-aurora);
  transition: width 0.5s ease;
}

h3.styleFontface:hover::after {
  width: 100%;
}

/* Indicatore di sezione attiva */
a[name] {
  scroll-margin-top: 100px;
}

/* Effetto hover sui calcolatori */
form {
  position: relative;
}

form::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  border-radius: var(--radius-lg);
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), 
    rgba(168, 85, 247, 0.1) 0%, 
    transparent 50%);
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 0;
}

form:hover::before {
  opacity: 1;
}

/* Numerazione automatica dei calcolatori */
.container {
  counter-reset: calculator;
}

form > div::before {
  counter-increment: calculator;
  content: counter(calculator);
  position: absolute;
  top: -12px;
  right: var(--space-lg);
  width: 24px;
  height: 24px;
  background: var(--gradient-aurora);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  color: white;
  box-shadow: 0 2px 10px rgba(168, 85, 247, 0.4);
}