/* ==========================================================
   Istituto De Filippi — Sale Congresso & Ristorante
   Stile condiviso a tutte le pagine
   ========================================================== */

:root {
  --navy: #1F3A5F;
  --navy-dark: #15273F;
  --gold: #C9A14B;
  --gold-soft: #E4C98B;
  --cream: #F7F5F0;
  --ink: #2B2B2B;
  --muted: #6B6B6B;
  --line: #E6E2D8;
  --white: #FFFFFF;
  --shadow: 0 10px 30px rgba(31,58,95,0.08);
  --radius: 6px;
  --maxw: 1180px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  color: var(--ink);
  background: var(--cream);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: "Cormorant Garamond", "Georgia", serif;
  color: var(--navy);
  font-weight: 600;
  line-height: 1.2;
  margin: 0 0 .6em;
}

h1 { font-size: clamp(2rem, 4.5vw, 3.4rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.3rem); }
h3 { font-size: 1.3rem; }

p { margin: 0 0 1em; }

a { color: var(--navy); text-decoration: none; }
a:hover { color: var(--gold); }

img { max-width: 100%; display: block; }

.container {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- HEADER / NAV ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 0;
}

.logo {
  display: flex; align-items: center; gap: 12px;
  font-family: "Cormorant Garamond", serif;
  font-size: 1.35rem; font-weight: 600;
  color: var(--navy);
}

.logo-mark {
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--navy); color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-family: "Cormorant Garamond", serif;
  font-size: 1.15rem; letter-spacing: 1px;
}

.logo-img {
  height: 48px;
  width: auto;
  display: block;
  border-radius: 6px;
}

.nav-links {
  display: flex; gap: 32px; list-style: none; margin: 0; padding: 0;
}

.nav-links a {
  font-size: .95rem;
  letter-spacing: .5px;
  text-transform: uppercase;
  color: var(--ink);
  padding: 6px 0;
  border-bottom: 2px solid transparent;
  transition: border-color .2s, color .2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--navy);
  border-bottom-color: var(--gold);
}

.nav-cta {
  background: var(--navy); color: var(--white) !important;
  padding: 10px 20px !important; border-radius: var(--radius);
  border: none !important;
}
.nav-cta:hover { background: var(--gold); color: var(--navy) !important; }

.hamburger {
  display: none;
  background: transparent; border: 0; cursor: pointer;
  width: 40px; height: 40px; padding: 0;
}
.hamburger span {
  display: block; width: 22px; height: 2px; margin: 5px auto;
  background: var(--navy); transition: transform .25s, opacity .25s;
}

/* ---------- HERO ---------- */
.hero {
  position: relative;
  min-height: 72vh;
  display: flex; align-items: center;
  color: var(--white);
  background:
    linear-gradient(135deg, rgba(31,58,95,.82), rgba(21,39,63,.72)),
    url("../img/hero.jpg") center/cover no-repeat;
  background-color: var(--navy);
}
.hero .container { width: 100%; padding-top: 80px; padding-bottom: 80px; }
.hero h1 { color: var(--white); max-width: 780px; }
.hero .lead {
  font-size: 1.2rem; max-width: 620px; color: rgba(255,255,255,.92);
}
.hero .eyebrow {
  display: inline-block;
  font-size: .85rem; letter-spacing: 3px; text-transform: uppercase;
  color: var(--gold-soft); margin-bottom: 18px;
}

/* ---------- BOTTONI ---------- */
.btn {
  display: inline-block;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-weight: 600; font-size: .95rem;
  letter-spacing: .5px;
  cursor: pointer; border: 0;
  transition: transform .15s, background .2s, color .2s;
}
.btn-primary {
  background: var(--gold); color: var(--navy);
}
.btn-primary:hover { background: var(--gold-soft); transform: translateY(-1px); }
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 2px solid var(--white);
  padding: 12px 26px;
}
.btn-outline:hover { background: var(--white); color: var(--navy); }
.btn-row { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 8px; }

/* ---------- SECTIONS ---------- */
.section { padding: 80px 0; }
.section-alt { background: var(--white); }

.section-title {
  text-align: center; margin-bottom: 48px;
}
.section-title .eyebrow {
  display: block; color: var(--gold);
  font-size: .85rem; letter-spacing: 3px; text-transform: uppercase;
  margin-bottom: 10px;
}
.section-title h2 { margin: 0 0 12px; }
.section-title p { color: var(--muted); max-width: 640px; margin: 0 auto; }

/* ---------- FEATURE GRID ---------- */
.features {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
}
.feature {
  background: var(--white); padding: 32px 28px;
  border: 1px solid var(--line); border-radius: var(--radius);
  transition: transform .2s, box-shadow .2s;
}
.feature:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.feature-icon {
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--navy); color: var(--gold);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; margin-bottom: 18px;
}
.feature h3 { margin-bottom: 8px; }
.feature p { color: var(--muted); margin: 0; }

/* ---------- SALE / CARDS ---------- */
.rooms {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px;
}
.room-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--line);
  display: flex; flex-direction: column;
  transition: box-shadow .2s, transform .2s;
}
.room-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }

.room-img {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, #334E73, #1F3A5F);
  position: relative;
  display: flex; align-items: center; justify-content: center;
  color: var(--gold-soft);
  font-family: "Cormorant Garamond", serif;
  font-size: 1.2rem;
  letter-spacing: 2px;
}
.room-img::after {
  content: ""; position: absolute; inset: 0;
  background: url("") center/cover no-repeat;
  opacity: 0;
}
.room-card[data-img]:not([data-img=""]) .room-img {
  background-image: var(--bg-img);
  background-size: cover; background-position: center;
  color: transparent;
}

.room-body { padding: 28px; }
.room-body h3 { margin-bottom: 8px; }
.room-meta {
  display: flex; flex-wrap: wrap; gap: 16px;
  margin: 14px 0 16px;
  font-size: .92rem; color: var(--muted);
}
.room-meta span { display: inline-flex; align-items: center; gap: 6px; }
.room-meta strong { color: var(--ink); font-weight: 600; }
.room-tag {
  display: inline-block; padding: 4px 10px;
  background: var(--cream); border: 1px solid var(--line);
  border-radius: 20px; font-size: .8rem; color: var(--navy);
  margin-right: 6px; margin-bottom: 6px;
}

/* Stats griglia (capienza, mq, dotazioni) */
.room-stats {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 12px; margin: 16px 0 18px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.room-stat {
  text-align: center;
}
.room-stat .label {
  display: block; font-size: .72rem; letter-spacing: 1.5px;
  text-transform: uppercase; color: var(--muted); margin-bottom: 4px;
}
.room-stat .value {
  display: block; font-family: "Cormorant Garamond", serif;
  font-size: 1.35rem; font-weight: 600; color: var(--navy);
  line-height: 1.1;
}
.room-stat .value small { font-size: .65em; color: var(--muted); font-weight: 500; }

/* Dotazioni */
.room-equipment {
  margin: 12px 0 18px;
  font-size: .92rem; color: var(--ink);
}
.room-equipment strong {
  display: block; color: var(--gold);
  text-transform: uppercase; font-size: .75rem; letter-spacing: 2px;
  margin-bottom: 6px; font-weight: 700;
}

/* Tabella prezzi dentro le card */
.room-pricing {
  margin: 18px 0 0;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}
.room-pricing-head {
  background: var(--navy); color: var(--gold-soft);
  padding: 10px 14px;
  font-size: .75rem; letter-spacing: 2px;
  text-transform: uppercase;
  display: flex; justify-content: space-between; align-items: center;
}
.room-pricing-head small {
  color: rgba(255,255,255,.7);
  text-transform: none; letter-spacing: .5px; font-size: .72rem;
}
.room-pricing table {
  width: 100%; border-collapse: collapse;
  font-size: .93rem;
}
.room-pricing td {
  padding: 10px 14px;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
.room-pricing tr:last-child td { border-bottom: 0; }
.room-pricing td:last-child {
  text-align: right; font-weight: 600; color: var(--navy);
  white-space: nowrap;
}
.room-pricing tr.dotazioni td {
  background: var(--cream);
  font-size: .85rem; color: var(--muted);
}
.room-pricing tr.dotazioni td:last-child { color: var(--navy); }

@media (max-width: 600px) {
  .room-stats { gap: 6px; }
  .room-stat .value { font-size: 1.1rem; }
}

/* ---------- TWO-COL (ristorante) ---------- */
.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center;
}
.split-img {
  aspect-ratio: 4/3;
  background: linear-gradient(135deg, var(--gold), var(--gold-soft));
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  color: var(--navy);
  font-family: "Cormorant Garamond", serif;
  font-size: 1.1rem; letter-spacing: 2px;
  min-height: 320px;
}

/* ---------- INFO BOX ---------- */
.info-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-top: 40px;
}
.info-box {
  background: var(--cream); padding: 24px;
  border-left: 3px solid var(--gold);
  border-radius: 4px;
}
.info-box h4 { margin-bottom: 6px; font-size: 1.05rem; color: var(--navy); }
.info-box p { margin: 0; color: var(--muted); font-size: .95rem; }

/* ---------- FORM ---------- */
.form-wrapper {
  background: var(--white); padding: 40px;
  border-radius: var(--radius); box-shadow: var(--shadow);
  border: 1px solid var(--line);
}
.form-row {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  margin-bottom: 18px;
}
.form-group { display: flex; flex-direction: column; }
.form-group label {
  font-size: .9rem; font-weight: 600;
  color: var(--navy); margin-bottom: 6px;
}
.form-group label .req { color: #C0392B; margin-left: 3px; }
.form-group input,
.form-group select,
.form-group textarea {
  font-family: inherit; font-size: 1rem;
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--white);
  color: var(--ink);
  transition: border-color .2s, box-shadow .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,161,75,.18);
}
.form-group textarea { resize: vertical; min-height: 110px; }

.radio-group { display: flex; gap: 18px; flex-wrap: wrap; margin-top: 4px; }
.radio-group label {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 500; cursor: pointer; font-size: .95rem;
  color: var(--ink);
}
.radio-group input[type=radio] { accent-color: var(--navy); }

.form-section {
  margin: 28px 0 18px; padding-top: 20px;
  border-top: 1px solid var(--line);
}
.form-section h3 {
  font-family: "Inter", sans-serif; font-size: 1rem;
  color: var(--gold); text-transform: uppercase; letter-spacing: 2px;
  margin-bottom: 4px;
}
.form-section p { color: var(--muted); font-size: .9rem; margin-bottom: 18px; }
.hidden { display: none; }

.form-message {
  margin-top: 20px; padding: 14px 18px;
  border-radius: var(--radius);
  display: none;
  font-size: .95rem;
}
.form-message.success {
  display: block; background: #E8F5EE; color: #166534; border: 1px solid #BBE5C7;
}
.form-message.error {
  display: block; background: #FBEAEA; color: #991B1B; border: 1px solid #F3C2C2;
}

/* ---------- FOOTER ---------- */
.site-footer {
  background: var(--navy-dark); color: #C9D2DE;
  padding: 60px 0 30px; margin-top: 0;
}
.site-footer h4 { color: var(--white); margin-bottom: 16px; font-family: "Inter", sans-serif; font-size: .95rem; text-transform: uppercase; letter-spacing: 2px; }
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 40px;
  margin-bottom: 40px;
}
.footer-grid p, .footer-grid li { color: #9BAABD; font-size: .93rem; margin: 0 0 8px; }
.footer-grid ul { list-style: none; padding: 0; margin: 0; }
.footer-grid a { color: #C9D2DE; }
.footer-grid a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08);
  padding-top: 20px; text-align: center;
  font-size: .85rem; color: #7A8798;
}

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .nav-links {
    position: absolute; top: 72px; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: var(--white); border-bottom: 1px solid var(--line);
    padding: 10px 24px; display: none;
  }
  .nav-links.open { display: flex; }
  .nav-links li { padding: 10px 0; border-bottom: 1px solid var(--line); }
  .nav-links li:last-child { border-bottom: 0; }
  .nav-cta { display: inline-block; margin-top: 8px; }
  .hamburger { display: block; }

  .features { grid-template-columns: 1fr; }
  .rooms { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .section { padding: 56px 0; }
  .hero { min-height: 60vh; }
}