/* ============================================================
   QuizDelCazz! – Stile principale (assets/css/style.css)
   Grafica allegra e spumeggiante 🎉
   ============================================================ */

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

:root {
  --color-primary:   #ff4e8c;
  --color-secondary: #ffc800;
  --color-accent:    #00d4ff;
  --color-purple:    #8b5cf6;
  --color-green:     #22c55e;
  --color-bg-dark:   #1a0533;
  --color-bg-mid:    #2d0a5e;
  --color-text:      #ffffff;
  --color-text-soft: #e2d4f8;
  --radius-lg:       1.5rem;
  --radius-xl:       2.5rem;
  --shadow-pop:      0 8px 32px rgba(0,0,0,.45);
  --font-main:       'Segoe UI', system-ui, sans-serif;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-main);
  background: var(--color-bg-dark);
  color: var(--color-text);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* ---- Gradient backgrounds per pagina ---------------------- */
.page-home {
  background: linear-gradient(135deg, #1a0533 0%, #2d0a5e 50%, #0d1b4b 100%);
}
.page-info {
  background: linear-gradient(135deg, #0d1b4b 0%, #1a0533 50%, #2d0a5e 100%);
}
.page-register {
  background: linear-gradient(135deg, #2d0a5e 0%, #0d1b4b 100%);
}
.page-confirm {
  background: linear-gradient(135deg, #1a0533 0%, #2d0a5e 100%);
}

/* ---- Palloncini animati in background --------------------- */
.balloons {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.balloon {
  position: absolute;
  bottom: -100px;
  font-size: 3rem;
  animation: floatUp 8s ease-in infinite;
  opacity: .7;
  user-select: none;
}

.b1 { left:  5%;  animation-delay: 0s;    animation-duration:  9s; font-size: 2.5rem; }
.b2 { left: 18%;  animation-delay: 1.5s;  animation-duration: 11s; font-size: 3.5rem; }
.b3 { left: 35%;  animation-delay: 3s;    animation-duration:  8s; font-size: 2rem;   }
.b4 { left: 55%;  animation-delay: 0.7s;  animation-duration: 12s; font-size: 3rem;   }
.b5 { left: 72%;  animation-delay: 2.2s;  animation-duration:  9s; font-size: 2.8rem; }
.b6 { left: 88%;  animation-delay: 4s;    animation-duration: 10s; font-size: 2.2rem; }

@keyframes floatUp {
  0%   { transform: translateY(0)     rotate(0deg);   opacity: .7; }
  50%  { transform: translateY(-50vh) rotate(15deg);  opacity: .5; }
  100% { transform: translateY(-110vh) rotate(-10deg); opacity: 0; }
}

/* ---- Header ---------------------------------------------- */
.site-header {
  position: relative;
  z-index: 10;
  padding: 1.2rem 2rem;
  display: flex;
  align-items: center;
}

.header-logo {
  font-size: 1.4rem;
  font-weight: 900;
  color: var(--color-secondary);
  text-decoration: none;
  text-shadow: 0 2px 12px rgba(255,200,0,.6);
  letter-spacing: .03em;
  transition: opacity .2s;
}
.header-logo:hover { opacity: .8; }

/* ---- Hero (home) ----------------------------------------- */
.hero {
  position: relative;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - 80px);
  padding: 2rem;
  text-align: center;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.6rem;
  width: 100%;
}

.logo-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
}

.logo-img {
  width: clamp(160px, 60vw, 320px);
  max-width: 90vw;
  height: auto;
  filter: drop-shadow(0 0 24px rgba(255,200,0,.6));
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0);     }
  50%       { transform: translateY(-18px); }
}

.logo-text {
  font-size: clamp(3rem, 10vw, 7rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -.02em;
  color: white;
  text-shadow: 0 0 40px rgba(255,255,255,.3);
}
.logo-text .del {
  color: var(--color-accent);
  font-size: .75em;
}
.logo-text .cazz {
  color: var(--color-secondary);
  text-shadow: 0 0 30px rgba(255,200,0,.8);
}

.edition-badge {
  font-size: clamp(.85rem, 2.5vw, 1.1rem);
  font-weight: 800;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--color-secondary);
  background: rgba(255,200,0,.12);
  border: 1px solid rgba(255,200,0,.35);
  border-radius: 100px;
  padding: .3rem 1.1rem;
  text-shadow: 0 0 12px rgba(255,200,0,.5);
}

.tagline {
  font-size: clamp(1rem, 3vw, 1.5rem);
  color: var(--color-text-soft);
  max-width: 520px;
}

/* ---- Buttons --------------------------------------------- */
.btn {
  display: inline-block;
  padding: .8rem 2rem;
  border-radius: 100px;
  font-weight: 800;
  font-size: 1rem;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform .15s, box-shadow .15s, filter .15s;
}
.btn:hover  { transform: translateY(-3px) scale(1.03); }
.btn:active { transform: translateY(1px) scale(.98);   }

.btn-big {
  padding: 1.1rem 2.8rem;
  font-size: 1.2rem;
}

.btn-pulsing {
  background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
  color: #fff;
  box-shadow: 0 0 0 0 rgba(255,78,140,.6);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0%   { box-shadow: 0 0 0  0   rgba(255,78,140,.6); }
  70%  { box-shadow: 0 0 0  18px rgba(255,78,140,0);  }
  100% { box-shadow: 0 0 0  0   rgba(255,78,140,0);   }
}

.btn-outline {
  background: transparent;
  color: var(--color-secondary);
  border: 2px solid var(--color-secondary);
}
.btn-outline:hover {
  background: var(--color-secondary);
  color: var(--color-bg-dark);
}

.btn-submit {
  width: 100%;
  background: linear-gradient(135deg, var(--color-green), var(--color-accent));
  color: #fff;
  font-size: 1.1rem;
  padding: 1rem;
  box-shadow: 0 4px 20px rgba(34,197,94,.4);
}

/* ---- Cards ----------------------------------------------- */
.card {
  background: rgba(255,255,255,.06);
  backdrop-filter: blur(14px);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius-xl);
  padding: 2.5rem 2.8rem;
  box-shadow: var(--shadow-pop);
  position: relative;
  z-index: 10;
  width: 100%;
  max-width: 680px;
  margin: 0 auto;
}

.card-emoji {
  font-size: 3.5rem;
  margin-bottom: .8rem;
  text-align: center;
}

.card h2 {
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 900;
  text-align: center;
  margin-bottom: 1.2rem;
  color: var(--color-secondary);
  text-shadow: 0 0 20px rgba(255,200,0,.5);
}

/* ---- Info page ------------------------------------------- */
.info-main, .register-main, .confirm-main {
  position: relative;
  z-index: 10;
  padding: 2rem 1rem 4rem;
  display: flex;
  justify-content: center;
}

.card-info p {
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--color-text-soft);
  margin-bottom: 1rem;
}

.features-list {
  list-style: none;
  margin: 1.2rem 0 1.8rem;
  display: flex;
  flex-direction: column;
  gap: .6rem;
}
.features-list li {
  font-size: 1rem;
  color: var(--color-text-soft);
  padding: .5rem .8rem;
  background: rgba(255,255,255,.06);
  border-radius: .8rem;
  border-left: 4px solid var(--color-primary);
}

.birthday-banner {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: linear-gradient(135deg, rgba(255,200,0,.15), rgba(255,78,140,.12));
  border: 1px solid rgba(255,200,0,.4);
  border-radius: var(--radius-lg);
  padding: 1.1rem 1.3rem;
  margin-bottom: 1.4rem;
  color: var(--color-text-soft);
  font-size: .98rem;
  line-height: 1.6;
}
.birthday-banner strong {
  color: var(--color-secondary);
}
.birthday-banner-icon {
  font-size: 2.2rem;
  flex-shrink: 0;
  line-height: 1;
}

.cta-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  text-align: center;
  margin-bottom: 1.2rem;
}

.card-info .btn {
  display: block;
  width: fit-content;
  margin: 0 auto;
}

/* ---- Form ------------------------------------------------- */
.form-subtitle {
  text-align: center;
  color: var(--color-text-soft);
  margin-bottom: 1.5rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

@media (max-width: 500px) {
  .form-row { grid-template-columns: 1fr; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .4rem;
  margin-bottom: 1rem;
}

.form-group label {
  font-size: .9rem;
  font-weight: 700;
  color: var(--color-secondary);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
  background: rgba(255,255,255,.08);
  border: 1.5px solid rgba(255,255,255,.18);
  border-radius: .8rem;
  padding: .75rem 1rem;
  color: #fff;
  font-size: 1rem;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(255,78,140,.25);
}
.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,.35);
}

/* File upload custom */
.file-upload-wrap {
  position: relative;
}
.file-upload-wrap input[type="file"] {
  position: absolute;
  width: 1px; height: 1px;
  opacity: 0;
  pointer-events: none;
}
.file-upload-label {
  display: flex;
  align-items: center;
  gap: .8rem;
  background: rgba(255,255,255,.08);
  border: 1.5px dashed rgba(255,255,255,.35);
  border-radius: .8rem;
  padding: 1rem 1.2rem;
  cursor: pointer;
  transition: border-color .2s, background .2s;
}
.file-upload-label:hover {
  border-color: var(--color-accent);
  background: rgba(0,212,255,.08);
}
.file-icon { font-size: 1.8rem; }
.file-text { font-size: .95rem; color: var(--color-text-soft); }
.file-chosen { color: var(--color-accent) !important; }

.hint {
  font-size: .8rem;
  color: rgba(255,255,255,.45);
  margin-top: .2rem;
}

/* Checkbox */
.form-check {
  flex-direction: row;
  align-items: center;
  gap: .7rem;
  margin-bottom: 1.5rem;
}
.form-check input[type="checkbox"] {
  width: 1.2rem;
  height: 1.2rem;
  accent-color: var(--color-primary);
  cursor: pointer;
}
.form-check label {
  font-size: .9rem;
  font-weight: 400;
  color: var(--color-text-soft);
  cursor: pointer;
}

/* ---- Alerts ---------------------------------------------- */
.alert {
  border-radius: 1rem;
  padding: 1rem 1.2rem;
  margin-bottom: 1.2rem;
  font-size: .95rem;
  font-weight: 600;
}
.alert-error   { background: rgba(239,68,68,.2);  border: 1px solid rgba(239,68,68,.5);  color: #fca5a5; }
.alert-success { background: rgba(34,197,94,.2);  border: 1px solid rgba(34,197,94,.5);  color: #86efac; }

/* ---- Confirm card ---------------------------------------- */
.card-confirm { text-align: center; }
.card-confirm p {
  font-size: 1.05rem;
  color: var(--color-text-soft);
  margin-bottom: 1.8rem;
  line-height: 1.6;
}
.card-ok { border-color: rgba(34,197,94,.4);  }
.card-err { border-color: rgba(239,68,68,.4); }

/* ---- Footer ---------------------------------------------- */
.site-footer {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 1.5rem 1rem;
  font-size: .85rem;
  color: rgba(255,255,255,.3);
}

/* ---- Responsive ------------------------------------------ */
@media (max-width: 680px) {
  .card {
    padding: 1.8rem 1.4rem;
    border-radius: var(--radius-lg);
    margin: 0 .5rem;
  }
}