/* ===== VARIABILI E RESET ===== */
:root {
  /* Light Mode Colors */
  --primary-blue: #2563eb;       /* Blu intenso - fiducia */
  --primary-red: #dc2626;        /* Rosso energico */
  --accent-orange: #f97316;      /* Arancio - entusiasmo */
  --light-bg: #f8fafc;           /* Sfondo chiaro */
  --light-text: #1e293b;         /* Testo scuro */
  --light-card: #ffffff;         /* Card bianche */  
  --info-color: #3498DB;

  /* Dark Mode Colors */
  --dark-bg: #0f172a;            /* Sfondo blu scuro */
  --dark-text: #e2e8f0;          /* Testo chiaro */
  --dark-card: #1e293b;          /* Card blu medio */
  --dark-accent: #3b82f6;        /* Blu elettrico */
}

h1, h2, h3 {
  line-height: 1.3;
}

p {
  margin-bottom: 1.2rem;
}

p strong {
  color: inherit;
}

/* ===== HERO SECTION (PARALLAX) ===== */
.hero {
  background-image: linear-gradient(rgba(0, 0, 0, 0.5), rgba(0, 0, 0, 0.5)), 
                    url('img/parallasse.png');
  background-attachment: fixed;
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover;
  min-height: 80vh;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.8);
  padding: 2rem;
  text-align: center;
}

.dark-mode .hero {
  background-image: linear-gradient(rgba(0, 0, 0, 0.7), rgba(0, 0, 0, 0.7)), 
                    url('img/parallasse.png');
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.25rem;
  max-width: 700px;
}

/* ===== BUTTONS ===== */
a .principal_button {
  color: black;
  background-color: var(--primary-blue);
  border: 1px solid white;
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 600;
  transition: all 0.3s;
  cursor: pointer;
}


.secondary-button-fit {
  background-color: transparent;
  color: var(--info-color);
  border: 2px solid var(--info-color);
  padding: 12px 24px;
  border-radius: 10px;
  font-weight: 500;
  transition: all 0.3s;
  cursor: pointer;
}

.secondary-button-fit:hover {
  background-color: rgba(255, 255, 255, 0.15);
  transform: translateY(-3px);
}

.dark-mode .secondary-button-fit {
  border-color: var(--dark-accent);
  color: var(--dark-accent);
}

/* ===== FEATURE CARDS ===== */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  padding: 4rem 2rem;
}

.feature-card {
  background-color: var(--light-card);
  padding: 2rem;
  border-radius: 16px;
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  text-align: center;
}

.feature-card h3 {
  color: var(--light-text);
}

.dark-mode .feature-card {
  background-color: var(--dark-card);
  box-shadow: 0 6px 10px rgba(0, 0, 0, 0.4);
}

.dark-mode .feature-card h3 {
  color: var(--dark-text);
}

.feature-card:hover {
  transform: translateY(-8px);
}

.feature-card h2 {
  color: var(--primary-blue);
  margin-bottom: 1rem;
  font-size: 1.8rem;
}

.dark-mode .feature-card h2 {
  color: var(--dark-accent);
}

.feature-card p {
  color: var(--light-text);
  font-size: 1.1rem;
}

.dark-mode .feature-card p {
  color: var(--dark-text);
}

/* ===== PROJECT DETAILS / ABOUT ===== */
.project-details p,
.about-info p {
  font-size: 1.15rem;
  text-align: center;
  color: var(--light-text);
}

.project-details p strong,
.about-info p strong {
  color: var(--accent-orange);
}

.dark-mode .project-details p,
.dark-mode .about-info p {
  color: var(--dark-text);
}

.dark-mode .project-details p strong,
.dark-mode .about-info p strong {
  color: var(--dark-accent);
}

/* ===== FAQ SECTION ===== */
.faq {
  background-color: var(--primary-blue);
  color: white;
  padding: 5rem 2rem;
}

.dark-mode .faq {
  background-color: var(--dark-card);
}

.faq h2 {
  text-align: center;
  margin-bottom: 3rem;
  font-size: 2.5rem;
}

.faq-item {
  max-width: 800px;
  margin: 0 auto 2rem;
  padding: 2rem;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: 12px;
  transition: background-color 0.3s;
}

.dark-mode .faq-item {
  background-color: rgba(0, 0, 0, 0.2);
}

/* ===== CTA SECTION ===== */
.cta-section {
  text-align: center;
  padding: 5rem 2rem;
}

.cta-section h2 {
  font-size: 2.8rem;
  margin-bottom: 1.5rem;
  color: white;
}

.cta-section p {
  max-width: 600px;
  margin: 0 auto 2rem;
  color: white;
  opacity: 0.9;
  font-size: 1.2rem;
}

/* ===== DARK MODE TOGGLE ===== */
.theme-toggle {
  position: fixed;
  bottom: 20px;
  right: 20px;
  background: var(--primary-blue);
  color: white;
  border: none;
  padding: 12px;
  border-radius: 50%;
  cursor: pointer;
  box-shadow: 0 3px 7px rgba(0,0,0,0.3);
  z-index: 1000;
  transition: background 0.3s;
}

.dark-mode .theme-toggle {
  background: var(--dark-accent);
}



 /*COVER*/
 .cover{
  min-height: 100%;
  width: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  background: linear-gradient(0deg, rgba(0, 0, 0, 0.8) 0%, rgba(181, 181, 181, 0.8) 100%), url(./img/tipa.png) no-repeat center center;
   /*cbg-gradiant snippet*/
  background-size: cover; /*allarga l'immagine su tutto lo sfondo*/
}
.cover__text{
  text-align: center;
  max-width: 1000px; /*così abbiamo ristretto il testo, tra virgolette*/
  padding: 10%;
  color: #fff;
}

.dark-mode .cover {
  background: linear-gradient(0deg, rgba(206, 206, 206, 0.8) 0%, rgba(13, 13, 13, 0.8) 100%), url(./img/tipa.png) no-repeat center center;
  background-size: cover; /*allarga l'immagine su tutto lo sfondo*/

}

/* ===== MOBILE OPTIMIZATION ===== */
@media (max-width: 768px) {
  html, body {
    overflow-x: hidden;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1rem;
    padding: 0 1rem;
  }

  .features {
    grid-template-columns: 1fr;
    padding: 2rem 1rem;
  }

  .feature-card {
    padding: 1.5rem 1rem;
  }

  .feature-card h2 {
    font-size: 1.5rem;
  }

  .feature-card p {
    font-size: 1rem;
  }

  .project-details p,
  .about-info p {
    font-size: 1rem;
    padding: 0 1rem;
  }

  .faq {
    padding: 3rem 1rem;
  }

  .faq h2 {
    font-size: 2rem;
  }

  .faq-item {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
  }

  .cta-section {
    padding: 3rem 1rem;
  }

  .cta-section h2 {
    font-size: 2rem;
  }

  .cta-section p {
    font-size: 1rem;
  }

  .theme-toggle {
    bottom: 15px;
    right: 15px;
    padding: 10px;
  }

  .cover__text {
    padding: 15% 5%;
    font-size: 1rem;
  }

  .principal_button,
  .secondary-button-fit {
    padding: 10px 20px;
    font-size: 0.95rem;
  }

  .hero,
  .cover {
    padding: 1.5rem;
    text-align: center;
    background-attachment: scroll;
  }
}