/* === ROOT VARIABLES === */
:root {
  --primary: #2e64ff;
  --primary-dark: #1a3fa6;
  --accent: #6d9eff;
  --gray: #f5f7fb;
  --text: #1e1e1e;
  --radius: 1.1rem;
  --max-width: 1200px;
  --transition: 0.3s cubic-bezier(.4, 0, .2, 1);
  --shadow: 0 8px 32px rgba(46, 100, 255, 0.08);
}

/* === GLOBAL RESET === */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', Arial, sans-serif;
}

body {
  background: linear-gradient(120deg, #f5f7fb 0%, #eaf0ff 100%);
  color: var(--text);
  line-height: 1.7;
  font-size: 1.08rem;
  letter-spacing: 0.01em;
  min-height: 100vh;
}

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

a:hover {
  color: var(--primary);
}

/* === CONTAINERS === */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* === NAVBAR === */
.navbar {
  background: rgba(255, 255, 255, 0.9);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid #e0e4ee;
  box-shadow: 0 4px 24px rgba(46, 100, 255, 0.08);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 1.2rem;
  font-weight: 500;
  align-items: center;
}

.nav-links li {
  position: relative;
}

.nav-links a {
  padding: 1.3rem 0.9rem;
  display: block;
  border-radius: 0.7rem;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
}

.nav-links a.active {
  background: #f0f4ff;
  color: var(--primary);
  font-weight: 600;
  border-radius: 0.5rem;
}

.nav-links a.btn-primary {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: #fff;
  padding: 0.65rem 1.3rem;
  border-radius: var(--radius);
  font-weight: 600;
  box-shadow: 0 2px 12px rgba(46, 100, 255, 0.13);
  border: none;
}

.nav-links a.btn-primary:hover {
  background: linear-gradient(90deg, var(--primary-dark), var(--accent));
  color: #fff;
}

.nav-links a:hover:not(.btn-primary) {
  background: #f0f4ff;
  color: var(--primary);
}

.toggle {
  display: none;
  font-size: 2.1rem;
  cursor: pointer;
  color: var(--primary);
  background: #fff;
  border-radius: 50%;
  padding: 0.2em 0.5em;
  box-shadow: 0 2px 8px rgba(46, 100, 255, 0.10);
}

/* === HERO === */
.hero {
  background: linear-gradient(90deg, #0e2049 60%, #1a3fa6 100%);
  color: #ffffff;
  padding: 3rem 0;
  text-align: center;
}

.hero h1 {
  font-size: 2.5rem;
  margin-bottom: 1rem;
  color: #ffffff; /* forza il bianco */
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.3); /* migliora contrasto */
}

.hero p {
  font-size: 1.2rem;
  opacity: 1;
  color: #f8faff; /* quasi bianco */
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.2);
  max-width: 700px;
  margin: 0 auto;
}

/* === SECTIONS === */
section {
  padding: 5rem 0;
  transition: background var(--transition);
}

section:nth-of-type(even) {
  background: #fff;
}

/* === TYPOGRAPHY === */
h1, h2, h3 {
  font-weight: 800;
  line-height: 1.2;
  color: #0e2049;
  letter-spacing: -0.01em;
}

h1 {
  font-size: 2.8rem;
}

h2 {
  font-size: 2.1rem;
  margin-bottom: 1rem;
}

h3 {
  font-size: 1.25rem;
  margin-bottom: 0.7rem;
}

p {
  margin-bottom: 1.2rem;
  color: #222a3a;
}

ul {
  margin-bottom: 1.2rem;
  padding-left: 1.2rem;
}

/* === CARDS === */
.card {
  background: rgba(255, 255, 255, 0.65);
  border-radius: var(--radius);
  padding: 2.2rem 2rem;
  box-shadow: var(--shadow);
  border: 1px solid #e0e4ee;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
}

.card:hover {
  box-shadow: 0 16px 48px rgba(46, 100, 255, 0.16);
  transform: translateY(-6px) scale(1.03);
}

/* === BUTTONS === */
.btn {
  display: inline-block;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  color: #fff;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 1.08rem;
  box-shadow: 0 2px 12px rgba(46, 100, 255, 0.13);
  border: none;
  transition: background var(--transition), color var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

.btn:hover {
  background: linear-gradient(90deg, var(--primary-dark), var(--accent));
  box-shadow: 0 4px 16px rgba(46, 100, 255, 0.18);
}

/* === FORMS === */
input[type="text"],
input[type="email"],
textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1px solid #dbe4ff;
  border-radius: var(--radius);
  margin-bottom: 1.2rem;
  font-size: 1rem;
  background: #f8fbff;
  transition: border var(--transition), box-shadow var(--transition);
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus {
  border: 1.5px solid var(--primary);
  box-shadow: 0 2px 8px rgba(46, 100, 255, 0.10);
  outline: none;
}

/* === GRID SYSTEM === */
.grid {
  display: grid;
  gap: 2.2rem;
}

.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}

.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* === FOOTER === */
.footer {
  background: linear-gradient(90deg, #0e2049 60%, #2e64ff 100%);
  color: #fff;
  padding: 3rem 0;
  text-align: center;
  font-size: 1.1rem;
  letter-spacing: 0.01em;
  box-shadow: 0 -2px 16px rgba(46, 100, 255, 0.10);
  position: relative;
}

.footer p {
  color: #ffffff;
  opacity: 0.95;
}

/* === IMAGES === */
img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius);
  box-shadow: 0 2px 12px rgba(46, 100, 255, 0.07);
}

/* === TEXT ALIGNMENT === */
.text-center {
  text-align: center;
}

/* === RESPONSIVE === */
@media (max-width: 900px) {
  .container {
    padding: 0 0.7rem;
  }

  .nav-links {
    position: fixed;
    inset: 0 0 0 40%;
    flex-direction: column;
    background: #fff;
    padding: 5rem 2rem;
    transform: translateX(100%);
    transition: var(--transition);
    box-shadow: 0 8px 32px rgba(46, 100, 255, 0.10);
  }

  .nav-links.open {
    transform: translateX(0);
  }

  .toggle {
    display: block;
  }
}

@media (max-width: 600px) {
  h1 {
    font-size: 2rem;
  }

  h2 {
    font-size: 1.3rem;
  }

  .card {
    padding: 1.2rem 0.7rem;
  }

  section {
    padding: 2.5rem 0;
  }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* =====================
   Navbar: logo + menu orizzontali
   ===================== */
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-left: 0.0rem;   /* da 1.5rem → 1rem */
  padding-right: 1.5rem;/* mantieni il padding destro com’è */
}

/* dimensione e posizionamento logo */
.navbar .logo img {
  height: 80px;   /* adatta l'altezza come preferisci */
  width: auto;     /* mantiene le proporzioni */
  margin: 0;      /* rimuove qualsiasi margine */
  display: block; /* elimina spazi bizzarri sotto l’immagine */
}

/* === ALERTS === */
.alert-success {
  background: #e8f7ec;
  color: #2e7d32;
  border: 1px solid #c8e6c9;
}

.alert-error {
  background: #fff4e5;
  color: #a65d03;
  border: 1px solid #ffcc80;
}

.alert {
  margin-bottom: 1.2rem;
  padding: 1rem;
  border-radius: 0.6rem;
  font-size: 1rem;
}

.lang-switch img {
  height: 24px;
  width: auto;
  margin-left: 1rem;
  cursor: pointer;
}

.nav-links .lang-switch img {
  height: 20px;
  width: auto;
  margin-left: 0.5rem;
  border-radius: 50%;
  transition: transform 0.2s ease;
}

.nav-links .lang-switch img:hover {
  transform: scale(1.1);
}