/* ============================================================
   Hagia Sophia Visitor Guide — design system
   Palette inspired by the basilica's interior: imperial teal,
   mosaic gold, porphyry, marble cream.
   ============================================================ */
:root{
  --teal:#0e4d4c;
  --teal-dark:#0a3a39;
  --teal-deep:#072827;
  --gold:#c9a227;
  --gold-light:#e7c66a;
  --gold-soft:#f0e4c0;
  --porphyry:#8a3b3b;
  --terracotta:#b4532a;
  --cream:#f8f3e8;
  --cream-2:#fbf8f0;
  --paper:#ffffff;
  --ink:#20262b;
  --ink-soft:#4a5560;
  --line:#e7ddc7;
  --shadow:0 6px 24px rgba(10,40,39,.10);
  --shadow-lg:0 18px 50px rgba(10,40,39,.18);
  --radius:14px;
  --radius-sm:10px;
  --maxw:1180px;
  --serif:"Cormorant Garamond",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;font-family:var(--sans);color:var(--ink);background:var(--cream);
  line-height:1.65;font-size:17px;overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--teal);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.12;color:var(--teal-dark);margin:0 0 .5em}
h1{font-size:clamp(2.1rem,5.2vw,3.5rem);letter-spacing:.4px}
h2{font-size:clamp(1.7rem,3.6vw,2.5rem)}
h3{font-size:clamp(1.25rem,2.4vw,1.6rem)}
p{margin:0 0 1.05rem}
.container{max-width:var(--maxw);margin:0 auto;padding:0 20px}
.wrap{max-width:860px}
section{position:relative}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;gap:.55em;font-family:var(--sans);font-weight:700;
  font-size:1.02rem;padding:.85em 1.6em;border-radius:50px;border:0;cursor:pointer;
  transition:transform .15s ease,box-shadow .15s ease,background .2s;text-decoration:none;line-height:1.1}
.btn-primary{background:linear-gradient(135deg,#e7c66a,#c9a227);color:#3a2e07;box-shadow:0 8px 22px rgba(201,162,39,.4)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 30px rgba(201,162,39,.5);text-decoration:none}
.btn-ghost{background:transparent;color:var(--teal-dark);border:1.6px solid var(--gold)}
.btn-ghost:hover{background:var(--gold);color:#3a2e07;text-decoration:none}
.btn-lg{font-size:1.12rem;padding:1em 2em}
.btn svg{width:1.1em;height:1.1em}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(251,248,240,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;flex:0 0 auto}
.brand img{width:42px;height:42px}
.brand-text{display:flex;flex-direction:column;line-height:1}
.brand-name{font-family:var(--serif);font-weight:700;font-size:1.28rem;color:var(--teal-dark);letter-spacing:.3px}
.brand-sub{font-size:.62rem;letter-spacing:.22em;text-transform:uppercase;color:var(--gold);font-weight:700;margin-top:3px}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:4px}
.main-nav a{font-size:.93rem;font-weight:600;color:var(--ink-soft);padding:.5em .7em;border-radius:8px}
.main-nav a:hover,.main-nav a.active{color:var(--teal-dark);background:rgba(201,162,39,.14);text-decoration:none}
.header-actions{display:flex;align-items:center;gap:10px}

/* language switcher */
.lang{position:relative}
.lang-btn{display:flex;align-items:center;gap:6px;background:transparent;border:1.5px solid var(--line);
  border-radius:50px;padding:.45em .8em;font:inherit;font-size:.86rem;font-weight:600;color:var(--ink-soft);cursor:pointer}
.lang-btn:hover{border-color:var(--gold)}
.lang-menu{position:absolute;right:0;top:calc(100% + 8px);background:var(--paper);border:1px solid var(--line);
  border-radius:12px;box-shadow:var(--shadow-lg);padding:8px;display:none;grid-template-columns:1fr 1fr;gap:2px;
  min-width:280px;max-height:60vh;overflow:auto}
.lang.open .lang-menu{display:grid}
/* open on hover/focus for pointer devices; invisible bridge spans the gap */
@media (hover:hover){.lang:hover .lang-menu,.lang:focus-within .lang-menu{display:grid}}
.lang-menu::before{content:"";position:absolute;bottom:100%;left:0;right:0;height:12px}
.lang-menu a{font-size:.88rem;padding:.5em .7em;border-radius:8px;color:var(--ink);white-space:nowrap}
.lang-menu a:hover{background:var(--cream);text-decoration:none}
.lang-menu a.cur{color:var(--gold);font-weight:700}

/* hamburger */
.nav-toggle{display:none;background:transparent;border:0;cursor:pointer;padding:8px;margin-left:6px}
.nav-toggle span{display:block;width:24px;height:2.4px;background:var(--teal-dark);border-radius:2px;margin:5px 0;transition:.25s}

/* ---------- hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;background:var(--teal-deep)}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.42}
.hero::after{content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(180deg,rgba(7,40,39,.55) 0%,rgba(7,40,39,.78) 100%)}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:42px;
  align-items:center;padding:54px 0 60px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.74rem;font-weight:700;letter-spacing:.2em;
  text-transform:uppercase;color:var(--gold-light);background:rgba(201,162,39,.16);
  border:1px solid rgba(231,198,106,.4);padding:.45em .9em;border-radius:50px;margin-bottom:18px}
.hero h1{color:#fff;text-shadow:0 2px 18px rgba(0,0,0,.3)}
.hero-sub{font-size:1.15rem;color:#e8ede9;max-width:36ch;margin:.4em 0 1.6em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-meta{display:flex;flex-wrap:wrap;gap:18px;margin-top:22px;font-size:.9rem;color:#dfe7e3}
.hero-meta b{color:#fff}
.hero-meta .star{color:var(--gold-light)}

/* booking widget card in hero */
.booking-card{background:var(--paper);border-radius:18px;box-shadow:var(--shadow-lg);padding:18px;color:var(--ink)}
.booking-card h2{font-size:1.18rem;margin:.1em 0 .2em;color:var(--teal-dark)}
.booking-card .bc-sub{font-size:.85rem;color:var(--ink-soft);margin-bottom:12px}
.booking-card .bc-foot{font-size:.74rem;color:var(--ink-soft);margin-top:10px;display:flex;align-items:center;gap:6px;justify-content:center}

/* disclaimer chip */
.disc-chip{position:relative;display:inline-flex;align-items:center;gap:6px;margin-top:18px;
  font-size:.74rem;color:#cdd8d3;cursor:help;border-bottom:1px dotted rgba(255,255,255,.4)}
.disc-chip .tip{position:absolute;bottom:calc(100% + 10px);left:0;width:min(320px,80vw);
  background:#fff;color:var(--ink);font-size:.8rem;line-height:1.5;padding:12px 14px;border-radius:10px;
  box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(6px);transition:.2s;z-index:5}
.disc-chip:hover .tip,.disc-chip:focus .tip{opacity:1;visibility:visible;transform:none}

/* ---------- related products tiles ---------- */
.tiles-section{background:var(--cream-2);border-bottom:1px solid var(--line)}
.section-head{text-align:center;max-width:620px;margin:0 auto 30px}
.section-head .eyebrow{font-size:.74rem;font-weight:700;letter-spacing:.2em;text-transform:uppercase;color:var(--gold)}
.section-head h2{margin-top:.25em}
.section-head p{color:var(--ink-soft);font-size:1.02rem}
.tiles{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.tile{background:var(--paper);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow);
  display:flex;flex-direction:column;transition:transform .18s,box-shadow .18s;border:1px solid var(--line)}
.tile:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.tile-img{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--teal)}
.tile-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.tile:hover .tile-img img{transform:scale(1.05)}
.tile-badge{position:absolute;top:10px;left:10px;background:rgba(7,40,39,.85);color:var(--gold-light);
  font-size:.7rem;font-weight:700;padding:.3em .7em;border-radius:50px;backdrop-filter:blur(4px)}
.tile-body{padding:15px 16px 17px;display:flex;flex-direction:column;flex:1}
.tile-body h3{font-family:var(--sans);font-size:1.02rem;font-weight:700;color:var(--ink);line-height:1.3;margin:0 0 8px}
.tile-rate{font-size:.83rem;color:var(--ink-soft);margin-bottom:12px;display:flex;align-items:center;gap:5px}
.tile-rate .star{color:var(--gold)}
.tile-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px}
.tile-price{font-size:.82rem;color:var(--ink-soft)}
.tile-price b{font-size:1.18rem;color:var(--teal-dark);font-family:var(--serif)}
.tile .btn{padding:.6em 1.1em;font-size:.9rem}

/* ---------- content ---------- */
.content{padding:56px 0}
.content .container{display:block}
.lede{font-size:1.22rem;color:var(--ink-soft);line-height:1.6}
.content h2{margin-top:1.8em;padding-top:.2em}
.content h2:first-child,.content h2.first{margin-top:0}
.content h2::before{content:"";display:block;width:46px;height:3px;border-radius:3px;
  background:linear-gradient(90deg,var(--gold),var(--gold-light));margin-bottom:.5em}
.content h3{margin-top:1.4em;color:var(--porphyry)}
.content ul,.content ol{margin:0 0 1.2rem;padding-left:1.3em}
.content li{margin-bottom:.5em}
.content img.inline{border-radius:var(--radius);box-shadow:var(--shadow);margin:1.5em 0}
figure{margin:1.6em 0}
figure img{border-radius:var(--radius);box-shadow:var(--shadow)}
figcaption{font-size:.82rem;color:var(--ink-soft);margin-top:.6em;text-align:center}

/* quick-facts table */
.factbox{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow);margin:1.6em 0}
.factbox table{width:100%;border-collapse:collapse}
.factbox caption{background:var(--teal);color:#fff;font-family:var(--serif);font-size:1.2rem;
  padding:.7em 1em;text-align:left;font-weight:600}
.factbox th,.factbox td{padding:.8em 1.1em;text-align:left;border-top:1px solid var(--line);font-size:.97rem}
.factbox th{width:42%;color:var(--teal-dark);font-weight:700;background:var(--cream-2)}
.styled-table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:.96rem;box-shadow:var(--shadow);border-radius:var(--radius);overflow:hidden}
.styled-table th{background:var(--teal);color:#fff;padding:.8em 1em;text-align:left;font-weight:600;font-family:var(--serif);font-size:1.05rem}
.styled-table td{padding:.75em 1em;border-top:1px solid var(--line);background:var(--paper)}
.styled-table tr:nth-child(even) td{background:var(--cream-2)}

/* callout */
.callout{background:linear-gradient(180deg,#fff,var(--cream-2));border:1px solid var(--line);
  border-left:4px solid var(--gold);border-radius:var(--radius);padding:18px 22px;margin:1.6em 0;box-shadow:var(--shadow)}
.callout.tip{border-left-color:var(--gold)}
.callout.info{border-left-color:var(--teal)}
.callout.warn{border-left-color:var(--terracotta)}
.callout .c-title{font-family:var(--serif);font-weight:700;font-size:1.2rem;color:var(--teal-dark);
  margin-bottom:.3em;display:flex;align-items:center;gap:8px}
.callout p:last-child{margin-bottom:0}
.callout .ico{font-size:1.1em}

/* source ref */
.src{font-size:.84rem;color:var(--ink-soft);font-style:italic}
.src a{color:var(--teal)}

/* inline CTA band */
.cta-band{background:linear-gradient(135deg,var(--teal),var(--teal-dark));color:#fff;border-radius:var(--radius);
  padding:30px 32px;margin:2em 0;display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;box-shadow:var(--shadow)}
.cta-band h3{color:#fff;margin:0 0 .25em}
.cta-band p{color:#dbe6e1;margin:0;font-size:.97rem}

/* mid-content widget */
.widget-embed{margin:2em 0}
.widget-embed .we-head{text-align:center;margin-bottom:14px}
.widget-embed .we-head h3{margin:0}

/* in-page links / related */
.related-links{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px;margin:1.6em 0}
.related-links a{display:flex;align-items:center;gap:10px;background:var(--paper);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:14px 16px;font-weight:600;color:var(--teal-dark);box-shadow:var(--shadow);transition:.15s}
.related-links a:hover{border-color:var(--gold);transform:translateY(-2px);text-decoration:none}
.related-links a .arr{margin-left:auto;color:var(--gold)}

/* FAQ */
.faq{margin:1.4em 0}
.faq details{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-sm);margin-bottom:12px;box-shadow:var(--shadow);overflow:hidden}
.faq summary{padding:16px 20px;cursor:pointer;font-weight:700;color:var(--teal-dark);font-size:1.05rem;
  list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.5rem;color:var(--gold);transition:.2s;line-height:1}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .faq-a{padding:0 20px 18px;color:var(--ink-soft)}
.faq .faq-a p:last-child{margin-bottom:0}

/* breadcrumb */
.breadcrumb{font-size:.84rem;color:var(--ink-soft);padding:14px 0}
.breadcrumb a{color:var(--ink-soft)}
.breadcrumb a:hover{color:var(--teal)}
.breadcrumb .sep{margin:0 .4em;color:var(--gold)}

/* page hero (interior pages) */
.page-hero{position:relative;color:#fff;background:var(--teal-deep);overflow:hidden}
.page-hero .hero-bg img{opacity:.38}
.page-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,40,39,.5),rgba(7,40,39,.8))}
.page-hero-inner{position:relative;z-index:2;padding:46px 0 50px;display:grid;grid-template-columns:1.1fr .9fr;gap:38px;align-items:center}
.page-hero h1{color:#fff}
.page-hero .hero-sub{max-width:46ch}

/* ---------- footer ---------- */
.site-footer{background:var(--teal-deep);color:#cdd8d3;padding:54px 0 26px;font-size:.92rem}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;margin-bottom:34px}
.footer-grid h4{font-family:var(--sans);font-size:.78rem;letter-spacing:.16em;text-transform:uppercase;color:var(--gold-light);margin:0 0 1em}
.footer-grid a{color:#cdd8d3;display:block;padding:.28em 0}
.footer-grid a:hover{color:#fff}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:.9rem;color:#aebbb5;margin-top:12px}
.footer-disclaimer{border-top:1px solid rgba(255,255,255,.12);padding-top:22px;font-size:.8rem;color:#9fb0aa;line-height:1.6}
.footer-disclaimer strong{color:#cdd8d3}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;margin-top:18px;font-size:.82rem;color:#8ba099}
.footer-bottom a{color:#8ba099}

/* arch divider */
.arch-sep{height:34px;background:radial-gradient(ellipse 60% 100% at 50% 0,var(--cream-2) 0,transparent 70%)}

/* utilities */
.center{text-align:center}
.mt0{margin-top:0}
.nowrap{white-space:nowrap}
[hidden]{display:none!important}

/* ---------- responsive ---------- */
@media (max-width:980px){
  .hero-inner,.page-hero-inner{grid-template-columns:1fr;gap:28px}
  .tiles{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media (max-width:760px){
  body{font-size:16px}
  .main-nav{position:fixed;inset:72px 0 auto 0;flex-direction:column;align-items:stretch;background:var(--paper);
    border-bottom:1px solid var(--line);padding:10px 18px 18px;gap:2px;box-shadow:var(--shadow-lg);
    transform:translateY(-130%);transition:transform .28s;z-index:55}
  .main-nav.open{transform:none}
  .main-nav a{padding:.8em .6em;font-size:1rem;border-bottom:1px solid var(--line)}
  .nav-toggle{display:block;margin-left:auto;order:3}
  .header-actions .btn-cta-text{display:none}
  .nav-toggle.open span:nth-child(1){transform:translateY(7.4px) rotate(45deg)}
  .nav-toggle.open span:nth-child(2){opacity:0}
  .nav-toggle.open span:nth-child(3){transform:translateY(-7.4px) rotate(-45deg)}
  .cta-band{flex-direction:column;align-items:flex-start;text-align:left}
  .footer-bottom{flex-direction:column}
}
@media (max-width:560px){
  .tiles{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-inner{padding:38px 0 44px}
  .lang-menu{grid-template-columns:1fr;min-width:200px}
  .btn-lg{font-size:1.05rem;padding:.9em 1.5em}
}
/* RTL */
[dir="rtl"] .main-nav{margin-left:0;margin-right:auto}
[dir="rtl"] .content h2::before{margin-left:auto}
[dir="rtl"] .callout{border-left:0;border-right:4px solid var(--gold)}
[dir="rtl"] .lang-menu{left:0;right:auto}
[dir="rtl"] .related-links a .arr{margin-left:0;margin-right:auto;transform:scaleX(-1)}