/* ============================================================
   LOGGIA 1550 — LIBERO PENSIERO
   Stili della home page (esperienza scrollytelling 3D)
   ============================================================ */

/* === CANVAS 3D === */
#canvas3d {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 1;
  display: block;
}

/* Vignettatura molto leggera ai bordi - non invade la scena */
.vignette {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  z-index: 2;
  pointer-events: none;
  background: radial-gradient(ellipse at center,
    rgba(5, 10, 37, 0) 60%,
    rgba(5, 10, 37, 0.15) 88%,
    rgba(5, 10, 37, 0.32) 100%);
}

/* === BARRA DI PROGRESSO SCROLL === */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 3px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  z-index: 100;
  transition: width 0.1s ease;
  box-shadow: 0 0 10px var(--color-gold);
}

/* === SEZIONI NARRATIVE === */
section.scene-section {
  position: relative;
  z-index: 10;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 100px 4vw;
  pointer-events: none;
}

section.scene-section.align-left  { align-items: flex-start; text-align: left; }
section.scene-section.align-right { align-items: flex-end;   text-align: right; }
section.scene-section.align-center{ align-items: center;     text-align: center; }

.section-inner {
  max-width: 460px;
  pointer-events: auto;
  position: relative;
  padding: 38px 42px;
}

/* Velatura sfumata radiale dietro il testo */
.section-inner::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 122%;
  height: 128%;
  z-index: -1;
  background: radial-gradient(ellipse at center,
    rgba(5, 9, 30, 0.62) 0%,
    rgba(5, 9, 30, 0.45) 50%,
    rgba(5, 9, 30, 0.18) 78%,
    rgba(5, 9, 30, 0) 100%);
  pointer-events: none;
}

#hero .section-inner {
  max-width: 600px;
}

/* === TIPOGRAFIA HERO E SEZIONI === */
.eyebrow {
  font-size: var(--fs-eyebrow);
  letter-spacing: var(--ls-eyebrow);
  color: var(--color-gold-warm);
  margin-bottom: 22px;
  text-transform: uppercase;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--t-slow) ease, transform var(--t-slow) ease;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.9);
}

h1, h2 {
  font-family: var(--font-display);
  font-weight: normal;
  letter-spacing: var(--ls-display);
  color: var(--color-gold-light);
  margin-bottom: 22px;
  line-height: 1.18;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 1.2s ease, transform 1.2s ease;
  text-shadow: var(--shadow-text-strong);
}

h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); letter-spacing: 3px; }

.narration {
  font-size: var(--fs-lead);
  font-style: italic;
  color: var(--color-gold-pale);
  line-height: 1.8;
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--t-slower) ease 0.2s, transform var(--t-slower) ease 0.2s;
  text-shadow: var(--shadow-text-soft);
}

section.scene-section.visible .eyebrow,
section.scene-section.visible h1,
section.scene-section.visible h2,
section.scene-section.visible .narration {
  opacity: 1;
  transform: translateY(0);
}

#hero h1 {
  font-size: var(--fs-hero);
  letter-spacing: var(--ls-hero);
}

#hero .subtitle {
  font-size: 14px;
  letter-spacing: 5px;
  color: var(--color-gold-warm);
  margin-top: 18px;
  opacity: 0;
  transition: opacity var(--t-slower) ease 0.4s;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.9);
}

#hero.visible .subtitle {
  opacity: 1;
}

/* === BOTTONI === */
.btn {
  display: inline-block;
  background: rgba(212, 184, 122, 0.08);
  color: var(--color-gold-light);
  border: var(--border-gold);
  padding: 15px 38px;
  font-size: 13px;
  font-family: var(--font-display);
  letter-spacing: var(--ls-button);
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--t-base) ease;
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  text-shadow: 0 1px 4px rgba(0, 0, 0, 0.9);
}

.btn:hover,
.btn:focus-visible {
  background: rgba(212, 184, 122, 0.2);
  box-shadow: 0 0 30px rgba(212, 184, 122, 0.5);
  transform: translateY(-2px);
  letter-spacing: 4px;
  color: var(--color-gold-light);
}

.btn-primary {
  border-width: 2px;
  background: rgba(212, 184, 122, 0.12);
}

#hero .btn {
  margin-top: 35px;
}

/* === CARD GRID (sezioni explore / works) === */
.cards-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 20px;
}

.card {
  background: rgba(10, 16, 45, 0.55);
  border: 1px solid rgba(212, 184, 122, 0.35);
  padding: 22px 26px;
  text-align: left;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  transition: all var(--t-base) ease;
  color: inherit;
  display: block;
  text-decoration: none;
}

.card:hover,
.card:focus-visible {
  border-color: var(--color-gold);
  background: rgba(212, 184, 122, 0.08);
  transform: translateX(4px);
}

.card h3 {
  font-size: var(--fs-h3);
  font-weight: normal;
  font-style: italic;
  color: var(--color-gold-light);
  margin-bottom: 8px;
  letter-spacing: 1px;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 1);
}

.card p {
  font-size: 14px;
  color: var(--color-cream);
  line-height: 1.65;
  margin: 0;
  text-shadow: 0 1px 4px rgba(0, 0, 0, 1);
}

.card-icon {
  font-size: 22px;
  margin-bottom: 6px;
  display: block;
}

/* === SCHERMATA DI CARICAMENTO arricchita === */
.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: radial-gradient(ellipse at center, #0a1545 0%, var(--color-bg-deep) 70%);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  transition: opacity 1.2s cubic-bezier(0.4, 0, 0.2, 1),
              visibility 1.2s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 20px;
}

.loader.hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  max-width: 560px;
  width: 100%;
}

.loader__symbol {
  font-size: 64px;
  color: var(--color-gold-light);
  text-shadow: 0 0 30px rgba(212, 184, 122, 0.7);
  animation: pulse 2.4s ease-in-out infinite;
  margin-bottom: 24px;
  line-height: 1;
}

.loader__title {
  font-family: var(--font-display);
  font-weight: normal;
  font-size: clamp(28px, 5vw, 42px);
  letter-spacing: 8px;
  color: var(--color-gold-light);
  text-shadow: var(--shadow-text-strong);
  margin-bottom: 8px;
  animation: title-fade-in 1.4s ease 0.2s both;
}

.loader__subtitle {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 14px;
  letter-spacing: 5px;
  color: var(--color-gold-warm);
  margin-bottom: 32px;
  animation: title-fade-in 1.4s ease 0.4s both;
}

@keyframes title-fade-in {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.loader__divider {
  width: 120px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold-warm), transparent);
  margin-bottom: 28px;
}

.loader__quote {
  min-height: 80px;
  margin-bottom: 32px;
  text-align: center;
  max-width: 480px;
  opacity: 0;
  transition: opacity 0.45s ease;
}

.loader__quote.show {
  opacity: 1;
}

.loader__quote-text {
  font-family: var(--font-display);
  font-style: italic;
  font-size: clamp(15px, 2.2vw, 17px);
  line-height: 1.7;
  color: var(--color-gold-pale);
  margin-bottom: 10px;
  text-shadow: var(--shadow-text-soft);
}

.loader__quote-source {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 11px;
  letter-spacing: 3px;
  color: var(--color-gold-warm);
  text-transform: uppercase;
}

.loader__bar {
  width: 260px;
  max-width: 80%;
  height: 2px;
  background: rgba(212, 184, 122, 0.15);
  position: relative;
  overflow: hidden;
  margin-bottom: 16px;
}

.loader__bar-fill {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, transparent, var(--color-gold), var(--color-gold-light), var(--color-gold), transparent);
  background-size: 200% 100%;
  animation: bar-shine 2s linear infinite;
  transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

@keyframes bar-shine {
  from { background-position: 100% 0; }
  to   { background-position: -100% 0; }
}

.loader__status {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 12px;
  letter-spacing: 3px;
  color: var(--color-gold-warm);
  text-transform: uppercase;
  opacity: 0.85;
  text-align: center;
  min-height: 18px;
}

/* mobile */
@media (max-width: 768px) {
  .loader__symbol { font-size: 52px; }
  .loader__bar { width: 200px; }
  .loader__divider { width: 80px; }
  .loader__quote-text { font-size: 14px; line-height: 1.6; }
}

@keyframes pulse {
  0%, 100% { opacity: 0.55; transform: scale(1); }
  50%      { opacity: 1; transform: scale(1.08); }
}

/* === MENU FOOTER MINIMALE === */
.site-footer {
  position: relative;
  z-index: 10;
  padding: 60px 4vw 40px;
  text-align: center;
  background: linear-gradient(180deg, transparent, rgba(5, 9, 30, 0.85));
  color: var(--color-gold-warm);
  font-size: 13px;
  letter-spacing: 2px;
}

.site-footer__nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 26px;
  margin-bottom: 28px;
}

.site-footer__nav a {
  color: var(--color-gold-warm);
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 3px;
  transition: color var(--t-fast) ease;
}

.site-footer__nav a:hover {
  color: var(--color-gold);
}

.site-footer__copy {
  opacity: 0.7;
  font-size: 11px;
  letter-spacing: 1.5px;
}

.site-footer__motto {
  font-style: italic;
  margin-bottom: 14px;
  color: var(--color-gold);
  letter-spacing: 4px;
}

/* === MOBILE === */
@media (max-width: 768px) {
  section.scene-section {
    padding: 80px 5vw;
  }
  .section-inner {
    padding: 30px 24px;
    max-width: 100%;
  }
  #hero .section-inner {
    max-width: 100%;
  }
  .section-inner::before {
    width: 110%;
    height: 115%;
  }
  /* Su mobile tutto centrato per leggibilità */
  section.scene-section.align-left,
  section.scene-section.align-right {
    align-items: center;
    text-align: center;
  }
  .card {
    padding: 18px 20px;
  }
  .loader__symbol { font-size: 56px; }
  .loader__bar { width: 180px; }
}