/* =========================================================
   Universo Emergente — stylesheet
   Palette: cream / deep blue / warm gold
   Type: system serif (titoli) + system sans (testo)
   ========================================================= */

:root {
  --color-bg: #f7f3ec;
  --color-bg-alt: #ede6d8;
  --color-ink: #1a1d2e;
  --color-ink-soft: #4a4e63;
  --color-muted: #7a7d8c;
  --color-accent: #b8935a;
  --color-accent-dark: #8d6e3f;
  --color-line: #d9d2c2;
  --color-white: #ffffff;

  --font-serif: "Iowan Old Style", "Palatino Linotype", Palatino, "Book Antiqua", Georgia, serif;
  --font-sans:  -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container: 1100px;
  --space-1: .5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 5rem;

  --radius: 6px;
  --shadow: 0 6px 24px rgba(26, 29, 46, 0.08);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.65;
  color: var(--color-ink);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.2;
  color: var(--color-ink);
  margin-top: 0;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.2rem); letter-spacing: -0.01em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-top: var(--space-5); }
h3 { font-size: 1.25rem; margin-top: var(--space-4); }
h4 { font-size: 1rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--color-ink-soft); }

p { margin: 0 0 var(--space-2) 0; }

a {
  color: var(--color-accent-dark);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .15s ease, color .15s ease;
}
a:hover { border-bottom-color: var(--color-accent-dark); }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 var(--space-3);
}

.muted { color: var(--color-muted); }

/* ========== PRELAUNCH BANNER ========== */

.prelaunch-banner {
  background: var(--color-ink);
  color: var(--color-bg);
  padding: 0.6rem 0;
  text-align: center;
  font-size: 0.9rem;
  letter-spacing: 0.01em;
}
.prelaunch-banner em {
  font-style: italic;
  color: #e8d4a8;
}
.prelaunch-banner a {
  color: var(--color-accent);
  border: none;
  margin-left: 0.5rem;
  font-weight: 500;
}
.prelaunch-banner a:hover {
  color: var(--color-bg);
}
.prelaunch-dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  margin-right: 0.6rem;
  vertical-align: middle;
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ========== HEADER ========== */

.site-header {
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-line);
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(8px);
  background: rgba(247, 243, 236, 0.92);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-3);
}

.brand {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--color-ink);
  border: none;
  font-family: var(--font-serif);
}
.brand:hover { border: none; }

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px; height: 38px;
  border: 1.5px solid var(--color-ink);
  border-radius: 50%;
  font-size: 1.05rem;
  font-weight: 600;
  position: relative;
}
.brand-mark sup { font-size: .55em; color: var(--color-accent-dark); }

.brand-text {
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.01em;
}

.site-nav ul {
  display: flex;
  gap: var(--space-3);
  list-style: none;
  margin: 0; padding: 0;
}

.site-nav a {
  color: var(--color-ink-soft);
  font-size: 0.95rem;
  border: none;
  padding-bottom: 2px;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover,
.site-nav a.active {
  color: var(--color-ink);
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: .4rem;
  gap: 4px;
  flex-direction: column;
}
.nav-toggle span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-ink);
}

/* ========== HERO ========== */

.hero {
  padding: var(--space-6) 0 var(--space-5);
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  border-bottom: 1px solid var(--color-line);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(184,147,90,0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: var(--space-5);
  align-items: center;
}

.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-2);
}

.hero h1 {
  margin-bottom: var(--space-3);
}

.hero-lead {
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  margin-bottom: var(--space-4);
  max-width: 38ch;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.hero-cover {
  position: relative;
  text-align: center;
}
.hero-cover img {
  max-width: 320px;
  width: 100%;
  height: auto;
  box-shadow: 0 24px 60px rgba(26, 29, 46, 0.25), 0 6px 12px rgba(26, 29, 46, 0.12);
  border-radius: 2px;
  transform: rotate(-2deg);
  transition: transform .3s ease;
}
.hero-cover img:hover { transform: rotate(0deg) scale(1.02); }

.hero-cover-placeholder {
  display: inline-block;
  width: 260px;
  height: 380px;
  background: linear-gradient(135deg, #1e2a47 0%, #2d3a5e 100%);
  border-radius: 2px;
  box-shadow: 0 24px 60px rgba(26, 29, 46, 0.25);
  transform: rotate(-2deg);
  position: relative;
  color: var(--color-bg);
  font-family: var(--font-serif);
  padding: var(--space-4);
  text-align: left;
}
.hero-cover-placeholder::before {
  content: "Chi siamo?";
  position: absolute;
  top: 40%; left: var(--space-4); right: var(--space-4);
  font-size: 2rem;
  font-weight: 600;
  line-height: 1.1;
}
.hero-cover-placeholder::after {
  content: "Nicola Turato";
  position: absolute;
  bottom: var(--space-3); left: var(--space-4);
  font-size: 0.95rem;
  opacity: 0.8;
}

/* ========== BUTTONS ========== */

.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: var(--radius);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all .15s ease;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-ink);
  color: var(--color-bg);
  border-color: var(--color-ink);
}
.btn-primary:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
}

.btn-outline {
  background: transparent;
  color: var(--color-ink);
  border-color: var(--color-ink);
}
.btn-outline:hover {
  background: var(--color-ink);
  color: var(--color-bg);
}

/* ========== SECTIONS ========== */

.section {
  padding: var(--space-6) 0;
}

.section-alt {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
}

.section-title {
  text-align: center;
  margin-bottom: var(--space-5);
  max-width: 700px;
  margin-left: auto;
  margin-right: auto;
}
.section-title h2 { margin-top: 0; }

.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}

.pillar {
  padding: var(--space-4);
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid var(--color-line);
  transition: transform .2s ease, box-shadow .2s ease;
}
.pillar:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.pillar-num {
  display: inline-block;
  font-family: var(--font-serif);
  font-size: 1.4rem;
  color: var(--color-accent-dark);
  margin-bottom: var(--space-2);
}

.pillar h3 { margin-top: 0; margin-bottom: var(--space-2); }

/* ========== PAGE HEADER ========== */

.page-header {
  padding: var(--space-5) 0 var(--space-4);
  background: linear-gradient(180deg, var(--color-bg) 0%, var(--color-bg-alt) 100%);
  border-bottom: 1px solid var(--color-line);
}
.page-header h1 {
  max-width: 800px;
  margin-bottom: var(--space-2);
}
.page-header .lead {
  font-size: 1.15rem;
  color: var(--color-ink-soft);
  max-width: 700px;
}

/* ========== CONTENT ========== */

.content {
  padding: var(--space-5) 0 var(--space-6);
}

.content-narrow {
  max-width: 720px;
  margin: 0 auto;
}

.content p { font-size: 1.05rem; }

blockquote {
  margin: var(--space-4) 0;
  padding: var(--space-3) var(--space-4);
  border-left: 3px solid var(--color-accent);
  background: var(--color-bg-alt);
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-style: italic;
  color: var(--color-ink);
  border-radius: 0 var(--radius) var(--radius) 0;
}
blockquote p:last-child { margin-bottom: 0; }

.book-meta {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: var(--space-5);
  align-items: start;
  margin: var(--space-4) 0;
}
.book-meta img,
.book-meta .hero-cover-placeholder {
  width: 100%;
  max-width: 280px;
  height: auto;
  transform: none;
  box-shadow: 0 18px 40px rgba(26, 29, 46, 0.18);
}

.stores {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: var(--space-3) 0 var(--space-4);
}
.stores a {
  padding: 0.6rem 1rem;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  color: var(--color-ink);
  font-size: 0.9rem;
}
.stores a:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-alt);
}

/* ========== FORM ========== */

.form {
  max-width: 600px;
  margin: 0 auto;
}

.form-group {
  margin-bottom: var(--space-3);
}

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-ink-soft);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.7rem 0.9rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--color-ink);
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius);
  transition: border-color .15s ease;
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--color-accent);
}

.form-group textarea { min-height: 140px; resize: vertical; }

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 0.6rem;
  font-size: 0.9rem;
  color: var(--color-ink-soft);
}
.form-check input { width: auto; margin-top: 4px; }

.alert {
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius);
  margin-bottom: var(--space-3);
}
.alert-success { background: #e8f3ec; color: #1e5631; border: 1px solid #bcd6c3; }
.alert-error   { background: #fbe9e7; color: #8b2c20; border: 1px solid #e8c2bd; }

/* ========== FOOTER ========== */

.site-footer {
  background: var(--color-ink);
  color: var(--color-bg);
  padding: var(--space-5) 0 var(--space-3);
  margin-top: var(--space-6);
}

.footer-inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: var(--space-4);
  padding-top: var(--space-3);
  padding-bottom: var(--space-4);
}

.footer-col h4 {
  color: var(--color-bg);
  margin-bottom: var(--space-2);
  font-size: 0.85rem;
}

.footer-col ul {
  list-style: none;
  padding: 0; margin: 0;
}
.footer-col li { margin-bottom: 0.4rem; }
.footer-col a {
  color: rgba(247, 243, 236, 0.7);
  border: none;
  font-size: 0.95rem;
}
.footer-col a:hover { color: var(--color-bg); }
.footer-col .muted { color: rgba(247, 243, 236, 0.5); }

.footer-bottom {
  padding-top: var(--space-3);
  border-top: 1px solid rgba(247, 243, 236, 0.12);
  font-size: 0.85rem;
  color: rgba(247, 243, 236, 0.5);
}
.footer-bottom p { margin: 0; }

/* ========== RESPONSIVE ========== */

@media (max-width: 860px) {
  .hero-grid { grid-template-columns: 1fr; gap: var(--space-4); }
  .hero-cover { order: -1; }
  .pillars { grid-template-columns: 1fr; }
  .book-meta { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; }

  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-line);
    display: none;
    padding: var(--space-3);
  }
  .site-nav.is-open { display: block; }
  .site-nav ul {
    flex-direction: column;
    gap: var(--space-2);
  }
}