/* Blu Hotel — personalizzazioni sopra il design system ABA (aba-base.css).
   Stessa struttura, palette blu dell'hotel; la sezione studenti ha un tema UNI+ distinto. */

:root {
  --c-primary: #0f2f5c;
  --c-primary-deep: #0a2244;
  --c-secondary: #2563a8;
  --c-secondary-dark: #1b4c85;
  --c-teal-soft: #dde8f5;
  --c-warm: #f4f2ee;
  --c-warm-deep: #e8e3da;
  --c-accent: #c98b5a;
  --c-accent-soft: #f5e6d8;
  --c-line: #dfdbd2;
  --shadow-soft: 0 18px 50px -24px rgba(10, 34, 68, .35);
  --shadow-lift: 0 28px 60px -26px rgba(10, 34, 68, .45);
  --navy: var(--c-primary);
  --navy-deep: var(--c-primary-deep);
  --terracotta: var(--c-secondary);
  --atlas-night: #0a2244;
}

/* Marchio tipografico dell'hotel. */
.blu-brand { display: inline-flex; align-items: center; gap: 12px; color: var(--c-primary); text-decoration: none; }
.blu-brand-mark { display: grid; width: 44px; height: 44px; flex: 0 0 auto; place-items: center; border-radius: 12px; background: var(--c-primary); color: #fff; font-family: var(--font-serif); font-size: 28px; font-style: italic; line-height: 1; transition: width .35s ease, height .35s ease; position: relative; }
.blu-brand-mark::after { position: absolute; top: 7px; right: 7px; width: 7px; height: 7px; border-radius: 50%; background: var(--c-accent); content: ''; }
.blu-brand-text { display: grid; line-height: 1.05; }
.blu-brand-text strong { font-size: 20px; font-weight: 800; letter-spacing: -.02em; }
.blu-brand-text small { margin-top: 3px; color: var(--c-muted); font-size: 12px; font-weight: 600; letter-spacing: .06em; text-transform: uppercase; }
.biz-header[data-scrolled] .blu-brand-mark { width: 38px; height: 38px; }
.blu-brand-light { color: #fff; }
.blu-brand-light .blu-brand-mark { background: #fff; color: var(--c-primary); }
.blu-brand-light .blu-brand-text small { color: rgba(255,255,255,.66); text-transform: none; letter-spacing: 0; font-size: 13px; }
.blu-footer .footer-property { margin-top: 18px; }

.blu-badge-star { font-size: 30px; }

/* Modulo di prenotazione Best Western. */
.blu-booker-band { position: relative; z-index: 2; width: min(var(--content), calc(100% - 2 * var(--gutter))); margin: 22px auto 0; }
.blu-booker { display: grid; grid-template-columns: 1.2fr repeat(3, minmax(0, 1fr)) auto; align-items: end; gap: 14px; padding: 22px; border: 1px solid var(--c-line); border-radius: var(--radius); background: #fff; box-shadow: var(--shadow-soft); }
.blu-booker-head { align-self: center; }
.blu-booker-head .biz-eyebrow { margin: 0 0 4px; }
.blu-booker-note { margin: 0; color: var(--c-muted); font-size: 14px; line-height: 1.4; }
.blu-booker label { display: grid; gap: 6px; color: var(--c-muted); font-size: 13px; font-weight: 700; letter-spacing: .04em; text-transform: uppercase; }
.blu-booker input, .blu-booker select { min-height: 50px; width: 100%; padding: 0 14px; border: 1px solid var(--c-line); border-radius: 14px; background: var(--c-warm); color: var(--c-text); font: inherit; font-size: 16px; letter-spacing: 0; text-transform: none; }
.blu-booker input:focus, .blu-booker select:focus { border-color: var(--c-secondary); outline: 3px solid rgba(37, 99, 168, .18); }
.blu-booker-submit { min-height: 52px; white-space: nowrap; }
.blu-booker-error { grid-column: 1 / -1; margin: 0; color: #a3261b; font-size: 15px; font-weight: 600; }
.blu-booker-panel { grid-template-columns: repeat(3, minmax(0, 1fr)) auto; max-width: 980px; margin-top: 34px; }
.blu-prenota-direct { margin-top: 22px; color: var(--c-muted); }
.blu-booking-options { margin-top: 30px; }
.blu-booking-options .text-link { margin-left: 14px; font-weight: 700; }

/* Camere: quattro tipologie. */
.blu-room-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.blu-room-index { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 34px 0 0; padding: 0; list-style: none; }
.blu-room-index a { display: grid; gap: 4px; padding: 18px 20px; border: 1px solid var(--c-line); border-radius: var(--radius-sm); background: #fff; transition: border-color .2s ease, transform .25s var(--ease-out); }
.blu-room-index a:hover { border-color: var(--c-secondary); transform: translateY(-2px); }
.blu-room-index strong { color: var(--c-primary); font-size: 18px; }
.blu-room-index span { color: var(--c-muted); font-size: 14px; }
.biz-room-copy .biz-eyebrow { margin-bottom: 6px; }

.blu-equipment { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 12px; margin: 30px 0 0; padding: 0; list-style: none; }
.blu-equipment li { position: relative; padding: 16px 18px 16px 46px; border: 1px solid var(--c-line); border-radius: var(--radius-sm); background: #fff; font-weight: 600; }
.blu-equipment li::before { position: absolute; left: 18px; top: 17px; width: 16px; height: 16px; border-radius: 50%; background: var(--c-teal-soft); box-shadow: inset 0 0 0 5px var(--c-secondary); content: ''; }

/* Meeting. */
.blu-space-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 22px; margin-top: 34px; }
.blu-space-card { padding: clamp(26px, 4vw, 42px); }
.blu-space-capacity { display: flex; align-items: baseline; gap: 10px; margin: 0 0 12px; color: var(--c-secondary); }
.blu-space-capacity strong { font-size: clamp(56px, 7vw, 88px); font-weight: 800; letter-spacing: -.05em; line-height: 1; }
.blu-space-capacity span { font-size: 18px; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; }
.blu-space-card h3 { margin: 0 0 8px; font-size: 26px; }

/* Dove siamo. */
.blu-route-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; margin-top: 34px; }
.blu-route-grid .biz-card { padding: 28px; }
.blu-route-grid h3 { margin: 16px 0 10px; font-size: 21px; }
.blu-route-grid p { margin: 0; color: var(--c-muted); }
.blu-route-grid .biz-icon-lg { color: var(--c-secondary); }

/* Atlante sotto l'header dell'hotel. */
.blu-atlas .atlas-hero { padding-top: 110px; }
.blu-atlas .atlas-hero::after { border-color: rgba(201, 139, 90, .85); }
.blu-atlas .destination-detail-hero { padding-top: 60px; }

.blu-student-banner { background: linear-gradient(120deg, var(--c-primary-deep), var(--c-secondary-dark)); }

/* Immagini dentro contenitori a riempimento (sezione studenti, stile ABA). */
.student-hero-image picture, .student-matching-image picture { position: absolute; inset: 0; }
.student-hero-image img, .student-matching-image img { width: 100%; height: 100%; object-fit: cover; }

/* ------------------------------------------------------------------ Sezione studenti UNI+ BLU
   Tema distinto dal sito dell'hotel: blu elettrico e arancio del marchio UNI+. */
.uni-section {
  --uni-blue: #1b3f8f;
  --uni-blue-deep: #102a66;
  --uni-orange: #e2551f;
  --navy: var(--uni-blue);
  --navy-deep: var(--uni-blue-deep);
  --terracotta: var(--uni-orange);
  --c-primary: var(--uni-blue);
  --c-primary-deep: var(--uni-blue-deep);
  --c-secondary: var(--uni-orange);
  --c-secondary-dark: #b83f12;
  --c-accent: #ff9a6b;
  background: #f7f5f0;
}
.uni-section .button { background: var(--uni-orange); }
.uni-section .button:hover { background: #b83f12; }
.uni-section .student-hero .button { background: #fff; color: var(--uni-blue); }
.uni-section .eyebrow { color: #ffb08a; }
.uni-section .eyebrow.dark { color: var(--uni-orange); }
.uni-header { position: sticky; top: 0; z-index: 40; gap: 20px; }
.uni-header nav { gap: clamp(14px, 2.4vw, 30px); }
.uni-brand { display: inline-flex; align-items: center; gap: 12px; color: #fff; }
.uni-brand img { width: 48px; height: 48px; border-radius: 10px; background: #fff; }
.uni-brand span { display: grid; line-height: 1.1; }
.uni-brand strong { font-size: 19px; font-weight: 800; letter-spacing: .02em; }
.uni-brand small { color: rgba(255,255,255,.7); font-size: 12px; }
.uni-hotel-link { opacity: .8; }
.funding-beneficiary-logo img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; }
.funding-signature-official img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.uni-rates { background: var(--uni-blue); }
.uni-rates .edisu-copy { display: grid; gap: 16px; max-width: 760px; }
.uni-rate-card { display: grid; gap: 12px; padding: 26px; border-radius: 20px; background: #fff; color: var(--c-text); }
.uni-rate-card p { margin: 0; color: var(--c-muted) !important; font-size: 16px !important; }
.uni-rate-card .button { justify-self: start; }
.uni-rate-card-quiet { background: rgba(255,255,255,.1); color: #fff; }
.uni-rate-card-quiet p { color: #dbe5f7 !important; }
.uni-rate-card-quiet .edisu-link { justify-self: start; }
.uni-rate-label { color: var(--uni-orange) !important; font-size: 13px !important; font-weight: 800; letter-spacing: .12em; text-transform: uppercase; }
.uni-rate-card-quiet .uni-rate-label { color: #ffb08a !important; }
.uni-rate-value { display: flex; flex-wrap: wrap; align-items: baseline; gap: 10px; }
.uni-rate-value strong { color: var(--uni-blue); font-size: clamp(40px, 5vw, 58px); font-weight: 800; letter-spacing: -.04em; line-height: 1; }
.uni-rate-note { color: #c9d6ee !important; font-size: 14px !important; }
.blu-tariff-single { grid-template-columns: 1fr !important; }
.uni-footer { background: var(--uni-blue-deep); }
.uni-footer .biz-footer-wordmark em { color: var(--uni-orange); }
.uni-brand-light img { background: #fff; }
.uni-page .request-intro a { color: var(--uni-orange); font-weight: 700; }

@media (max-width: 1100px) {
  .blu-room-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .blu-booker { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .blu-booker-head { grid-column: 1 / -1; }
  .blu-booker-submit { grid-column: 1 / -1; }
}
@media (max-width: 900px) {
  .blu-route-grid, .blu-space-grid { grid-template-columns: 1fr; }
  .blu-room-index { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .blu-booker-panel { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .blu-room-grid { grid-template-columns: 1fr; }
  .blu-booker { grid-template-columns: 1fr 1fr; padding: 18px; }
  .blu-booker label:nth-of-type(3) { grid-column: 1 / -1; }
  .blu-brand-text small { display: none; }
  .blu-brand-text strong { font-size: 18px; }
  .blu-brand-mark { width: 38px; height: 38px; font-size: 24px; }
  .uni-brand small { display: none; }
  .uni-brand img { width: 40px; height: 40px; }
  .blu-booking-options .text-link { display: inline-block; margin: 12px 0 0; }
}

/* Tinte del design system ABA ricolorate sulla palette Blu. */
.biz-hero { background: var(--grain), radial-gradient(60% 70% at 0% 0%, rgba(201, 139, 90, .22), transparent 60%), radial-gradient(50% 60% at 100% 100%, rgba(37, 99, 168, .2), transparent 65%), var(--c-warm); }
.biz-section-navy { background: var(--grain), radial-gradient(70% 90% at 100% 0%, rgba(37, 99, 168, .5), transparent 60%), var(--c-primary); }
.biz-card:hover { border-color: rgba(37, 99, 168, .45); }
.biz-spot::before { background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 0%), rgba(37, 99, 168, .12), transparent 70%); }

/* Adattamenti per schermi stretti. */
.blu-booker > * { min-width: 0; }
.blu-booker input[type="date"] { min-width: 0; appearance: none; -webkit-appearance: none; }
.request-intro > * { min-width: 0; }
.uni-page .request-intro h1 { font-size: clamp(40px, 5.6vw, 84px); line-height: 1.02; }
@media (max-width: 640px) {
  .blu-booker input, .blu-booker select { padding: 0 10px; font-size: 15px; }
}

/* Atlante e galleria. */
:root { --atlas-blue: #174a86; --atlas-ink: #0a2244; }
.gallery-grid { grid-auto-flow: dense; }
.blu-atlas .biz-final-cta .biz-button-light { color: var(--c-primary); }
.blu-atlas .biz-final-cta .biz-button-ghost { color: #fff; }

/* Selettore della lingua. */
.blu-header-actions { display: flex; align-items: center; gap: 10px; }
.blu-lang { position: relative; }
.blu-lang summary { display: inline-flex; min-height: 44px; align-items: center; gap: 6px; padding: 0 14px; border: 1px solid var(--c-line); border-radius: 999px; background: #fff; color: var(--c-primary); font-size: 14px; font-weight: 700; cursor: pointer; list-style: none; user-select: none; }
.blu-lang summary::-webkit-details-marker { display: none; }
.blu-lang summary::after { width: 6px; height: 6px; margin-left: 2px; border-right: 2px solid currentColor; border-bottom: 2px solid currentColor; content: ''; transform: translateY(-2px) rotate(45deg); transition: transform .2s ease; }
.blu-lang[open] summary::after { transform: translateY(1px) rotate(-135deg); }
.blu-lang summary:hover { border-color: var(--c-secondary); }
.blu-lang ul { position: absolute; z-index: 60; top: calc(100% + 8px); right: 0; display: grid; min-width: 170px; margin: 0; padding: 8px; border: 1px solid var(--c-line); border-radius: 16px; background: #fff; box-shadow: var(--shadow-lift); list-style: none; }
.blu-lang li a { display: block; padding: 10px 12px; border-radius: 10px; color: var(--c-text); font-size: 15px; font-weight: 600; }
.blu-lang li a:hover { background: var(--c-warm); color: var(--c-primary); }
.blu-lang li a[aria-current] { background: var(--c-teal-soft); color: var(--c-primary); }
.blu-lang-dark summary { border-color: rgba(255,255,255,.35); background: transparent; color: #fff; }
.blu-lang-dark summary:hover { border-color: #fff; }
.uni-header nav { align-items: center; }
.blu-404-langs { margin-top: 28px; color: var(--c-muted); }
.blu-404-langs a { color: var(--c-secondary-dark); font-weight: 700; }

/* Cinese: niente corsivo sintetico sugli accenti tipografici. */
:lang(zh) em, :lang(zh) .biz-reveal-title em { font-style: normal; font-family: var(--font-sans); font-weight: 700; }
:lang(zh) h1, :lang(zh) h2 { letter-spacing: 0; }
:lang(zh) .atlas-hero h1, :lang(zh) .po-corridor-heading h2, :lang(zh) .destination-detail-body h2 { letter-spacing: 0; font-family: var(--font-sans); }
:lang(ru) .atlas-hero h1 { letter-spacing: -.04em; }

@media (max-width: 640px) {
  .blu-lang summary { min-height: 40px; padding: 0 10px; }
  .blu-lang summary > svg { display: none; }
  .uni-header nav { gap: 10px; }
}
:lang(zh) .biz-marquee span { font-style: normal; font-family: var(--font-sans); }
.blu-brand-text strong { white-space: nowrap; }
@media (max-width: 420px) {
  .biz-header-cta { min-height: 40px; padding-inline: 12px; font-size: 13px; }
  .blu-header-actions { gap: 6px; }
  .blu-brand { gap: 8px; }
}