/* =========================================================================
   TOTALLY ISTANBUL — design system
   Palette pulled from the mark: Iznik navy, Bosphorus teal, crescent copper.
   Signature device: the "departures board" (Şehir Hatları ferry-schedule
   look) used for the news ticker and update board — a real Istanbul object,
   not a decorative default.
   ========================================================================= */

:root{
  /* --- colour: named + numbered, drawn from the logo --- */
  --navy-950:#081b30;
  --navy-900:#0c2540;
  --navy-800:#123156;   /* primary brand ink */
  --navy-700:#1c4270;

  --teal-700:#0c4a5c;
  --teal-600:#0e5c73;   /* Bosphorus teal */
  --teal-500:#1c7d92;
  --teal-300:#8fc4cf;
  --teal-100:#e3f0f2;

  --copper-700:#8f5228;
  --copper-600:#a86336;
  --copper-500:#bd7440;  /* crescent copper — the one accent used sparingly */
  --copper-300:#dba06a;
  --copper-100:#f3e2cd;

  --cream-50:#faf6ee;
  --cream-100:#f4ecdd;
  --paper:#fffdf9;

  --ink-900:#1b2330;
  --ink-700:#3a4351;
  --ink-500:#616b78;
  --ink-300:#9aa3ad;
  --line:#e3ddd0;

  /* --- type --- */
  --font-display:'Fraunces', Georgia, 'Times New Roman', serif;
  --font-body:'Public Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono:'IBM Plex Mono', ui-monospace, SFMono-Regular, Menlo, monospace;

  /* --- scale --- */
  --container:1180px;
  --radius:3px;
  --shadow-card:0 1px 2px rgba(8,27,48,.06), 0 8px 24px -12px rgba(8,27,48,.18);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink-900);
  background:var(--cream-50);
  -webkit-font-smoothing:antialiased;
  line-height:1.55;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:600;line-height:1.12;margin:0 0 .5em;color:var(--navy-900);}
p{margin:0 0 1em;}
ul,ol{margin:0 0 1em;padding-left:1.25em;}
:focus-visible{outline:2px solid var(--copper-500);outline-offset:2px;}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

.wrap{max-width:var(--container);margin:0 auto;padding:0 24px;}
.eyebrow{
  font-family:var(--font-mono);
  font-size:.72rem;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--copper-600);
  display:flex;align-items:center;gap:.6em;
}
.eyebrow::before{content:"◆";font-size:.7em;color:var(--teal-500);}
.section{padding:64px 0;}
.section-head{max-width:640px;margin-bottom:36px;}
.section-head h2{font-size:clamp(1.6rem,3vw,2.15rem);}
.section-head p{color:var(--ink-500);font-size:1.02rem;}
.divider{border:0;border-top:1px solid var(--line);margin:0;}

/* buttons -------------------------------------------------------------- */
.btn{
  display:inline-flex;align-items:center;gap:.5em;
  font-family:var(--font-body);font-weight:600;font-size:.94rem;
  padding:.75em 1.3em;border-radius:var(--radius);
  border:1px solid transparent;cursor:pointer;
  transition:transform .15s ease, box-shadow .15s ease, background-color .15s ease;
}
.btn-primary{background:var(--copper-500);color:var(--paper);}
.btn-primary:hover{background:var(--copper-600);transform:translateY(-1px);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.4);color:inherit;}
.btn-ghost:hover{background:rgba(255,255,255,.1);}
.btn-line{border-color:var(--navy-800);color:var(--navy-800);}
.btn-line:hover{background:var(--navy-800);color:var(--paper);}

/* =========================================================================
   TICKER — the departures-board strip
   ========================================================================= */
.ticker{
  background:var(--navy-950);
  color:var(--teal-100);
  font-family:var(--font-mono);
  font-size:.78rem;
  border-bottom:1px solid rgba(255,255,255,.08);
  overflow:hidden;
  white-space:nowrap;
}
.ticker .wrap{display:flex;align-items:center;padding:9px 24px;gap:0;overflow:hidden;}
.ticker-track{display:flex;gap:2.4em;align-items:center;}
.ticker-track span{display:inline-flex;align-items:center;gap:.6em;color:var(--teal-100);opacity:.92;}
.ticker-track b{color:var(--cream-50);font-weight:600;}
.ticker-dot{color:var(--copper-300);}

/* =========================================================================
   HEADER
   ========================================================================= */
header.site-header{
  background:var(--paper);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:40;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 24px;gap:20px;
}
.brand{display:flex;align-items:center;gap:.65em;}
.brand img{height:40px;width:auto;}
.brand-text{font-family:var(--font-display);font-weight:600;font-size:1.18rem;color:var(--navy-900);line-height:1;}
.brand-text small{display:block;font-family:var(--font-mono);font-weight:400;font-size:.6rem;letter-spacing:.1em;color:var(--copper-600);text-transform:uppercase;margin-top:3px;}

nav.main-nav{display:flex;align-items:center;gap:2px;}
nav.main-nav a{
  font-size:.88rem;font-weight:600;color:var(--ink-700);
  padding:10px 12px;border-radius:var(--radius);
  transition:color .15s ease, background-color .15s ease;
}
nav.main-nav a:hover,nav.main-nav a.active{color:var(--navy-900);background:var(--teal-100);}

.header-tools{display:flex;align-items:center;gap:6px;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;border:1px solid var(--line);background:transparent;cursor:pointer;color:var(--navy-800);
  font-size:1rem;
}
.icon-btn:hover{background:var(--teal-100);border-color:var(--teal-300);}
.nav-toggle{display:none;}

/* =========================================================================
   HERO
   ========================================================================= */
.hero{
  position:relative;
  background:linear-gradient(180deg,var(--navy-900) 0%,var(--navy-800) 62%,var(--teal-700) 100%);
  color:var(--cream-50);
  overflow:hidden;
  padding:72px 0 0;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("../images/tile-pattern.svg");
  background-size:340px;background-repeat:repeat;
  opacity:.07;pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
.hero-copy h1{color:var(--paper);font-size:clamp(2.3rem,4.6vw,3.6rem);letter-spacing:-.01em;}
.hero-copy h1 em{font-style:italic;color:var(--copper-300);}
.hero-copy p.lead{color:var(--teal-100);font-size:1.12rem;max-width:46ch;}
.hero-cta{display:flex;gap:14px;margin-top:26px;flex-wrap:wrap;}
.hero-eyebrow{color:var(--copper-300);}
.hero-eyebrow::before{color:var(--teal-300);}

.hero-figure{position:relative;display:flex;justify-content:center;}
.hero-figure img{width:100%;max-width:420px;filter:drop-shadow(0 20px 40px rgba(0,0,0,.35));}

.stat-strip{
  position:relative;margin-top:52px;border-top:1px solid rgba(255,255,255,.14);
}
.stat-strip .wrap{display:grid;grid-template-columns:repeat(5,1fr);}
.stat-strip .stat{padding:22px 20px;border-left:1px solid rgba(255,255,255,.14);}
.stat-strip .stat:first-child{border-left:0;}
.stat-num{font-family:var(--font-display);font-size:1.7rem;color:var(--paper);font-weight:600;}
.stat-label{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.06em;text-transform:uppercase;color:var(--teal-300);}

/* =========================================================================
   REGIONS — ordered by geography, not decoration
   ========================================================================= */
.regions-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1px;background:var(--line);border:1px solid var(--line);}
.region-card{background:var(--paper);padding:26px 24px;transition:background-color .15s ease;}
.region-card:hover{background:var(--cream-100);}
.region-code{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;color:var(--copper-600);text-transform:uppercase;display:block;margin-bottom:.6em;}
.region-side{color:var(--teal-600);}
.region-card h3{font-size:1.15rem;margin-bottom:.35em;}
.region-card p{color:var(--ink-500);font-size:.92rem;margin-bottom:0;}

/* =========================================================================
   DEPARTMENTS — the index cards
   ========================================================================= */
.dept-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.dept-card{
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 26px 22px;display:flex;flex-direction:column;gap:10px;
  box-shadow:var(--shadow-card);
  transition:transform .15s ease, box-shadow .15s ease;
}
.dept-card:hover{transform:translateY(-3px);box-shadow:0 4px 8px rgba(8,27,48,.08), 0 16px 32px -14px rgba(8,27,48,.24);}
.dept-tag{font-family:var(--font-mono);font-size:.68rem;letter-spacing:.08em;text-transform:uppercase;color:var(--teal-600);display:flex;align-items:center;justify-content:space-between;}
.dept-card h3{font-size:1.3rem;margin:.1em 0 0;}
.dept-card > p{color:var(--ink-500);font-size:.94rem;flex-grow:0;}
.dept-links{display:flex;flex-direction:column;gap:6px;margin:4px 0 8px;padding:12px 0 0;border-top:1px dashed var(--line);}
.dept-links a{font-size:.88rem;color:var(--navy-800);font-weight:600;position:relative;padding-left:14px;}
.dept-links a::before{content:"→";position:absolute;left:0;color:var(--copper-500);}
.dept-links a:hover{color:var(--copper-600);}
.dept-more{margin-top:auto;font-size:.85rem;font-weight:700;color:var(--copper-600);}
.dept-more:hover{color:var(--copper-700);}

/* =========================================================================
   DEPARTURES BOARD — signature news module
   ========================================================================= */
.board{
  background:var(--navy-950);color:var(--cream-50);border-radius:var(--radius);
  overflow:hidden;border:1px solid var(--navy-700);
}
.board-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 22px;background:var(--navy-900);
  font-family:var(--font-mono);font-size:.72rem;letter-spacing:.1em;text-transform:uppercase;
  color:var(--teal-300);
}
.board-head .live{color:var(--copper-300);display:flex;align-items:center;gap:.5em;}
.board-head .live::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--copper-300);box-shadow:0 0 0 3px rgba(189,116,64,.25);}
.board-row{
  display:grid;grid-template-columns:96px 1fr 120px;gap:16px;align-items:baseline;
  padding:15px 22px;border-top:1px solid rgba(255,255,255,.08);
  font-family:var(--font-mono);font-size:.86rem;
}
.board-row a{color:var(--cream-50);font-family:var(--font-body);font-weight:600;font-size:.98rem;}
.board-row a:hover{color:var(--copper-300);}
.board-tag{color:var(--teal-300);font-size:.72rem;letter-spacing:.06em;}
.board-time{color:var(--ink-300);text-align:right;font-size:.76rem;}

/* =========================================================================
   GROWTH / MASTHEAD STATEMENT
   ========================================================================= */
.growth{
  background:var(--cream-100);border:1px dashed var(--copper-300);border-radius:var(--radius);
  padding:36px 40px;display:grid;grid-template-columns:1fr 260px;gap:32px;align-items:center;
}
.growth h3{font-size:1.35rem;}
.growth p{color:var(--ink-700);margin-bottom:0;}
.growth-meter{display:flex;flex-direction:column;gap:8px;}
.meter-track{height:8px;background:var(--line);border-radius:99px;overflow:hidden;}
.meter-fill{height:100%;background:linear-gradient(90deg,var(--copper-500),var(--teal-600));}
.meter-labels{display:flex;justify-content:space-between;font-family:var(--font-mono);font-size:.72rem;color:var(--ink-500);}

/* =========================================================================
   GENERIC CONTENT LAYOUTS (hub + guide pages)
   ========================================================================= */
.page-header{
  background:var(--navy-900);color:var(--cream-50);padding:44px 0 36px;position:relative;overflow:hidden;
}
.page-header::before{content:"";position:absolute;inset:0;background-image:url("../images/tile-pattern.svg");background-size:280px;opacity:.06;}
.breadcrumb{position:relative;font-family:var(--font-mono);font-size:.74rem;color:var(--teal-300);display:flex;gap:8px;flex-wrap:wrap;margin-bottom:14px;}
.breadcrumb a{color:var(--teal-300);}
.breadcrumb a:hover{color:var(--cream-50);}
.page-header h1{position:relative;color:var(--paper);font-size:clamp(1.9rem,3.6vw,2.7rem);margin-bottom:.3em;}
.page-header .lead{position:relative;color:var(--teal-100);max-width:64ch;font-size:1.05rem;margin-bottom:0;}

.content-layout{display:grid;grid-template-columns:2.1fr .9fr;gap:48px;padding:48px 0 72px;align-items:start;}
.article h2{font-size:1.4rem;margin-top:1.6em;}
.article h3{font-size:1.15rem;margin-top:1.4em;}
.article p{color:var(--ink-700);}
.article ul li,.article ol li{color:var(--ink-700);margin-bottom:.4em;}
.article blockquote{
  margin:1.6em 0;padding:4px 0 4px 20px;border-left:3px solid var(--copper-500);
  font-family:var(--font-display);font-style:italic;font-size:1.1rem;color:var(--navy-800);
}
.callout{
  background:var(--teal-100);border:1px solid var(--teal-300);border-radius:var(--radius);
  padding:18px 20px;margin:1.6em 0;font-size:.94rem;
}
.callout strong{color:var(--teal-700);}
.fact-table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:.92rem;}
.fact-table th,.fact-table td{text-align:left;padding:10px 14px;border-bottom:1px solid var(--line);}
.fact-table th{font-family:var(--font-mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.06em;color:var(--ink-500);}

aside.sidebar{position:sticky;top:90px;display:flex;flex-direction:column;gap:22px;}
.side-box{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;}
.side-box h4{font-size:.9rem;text-transform:uppercase;letter-spacing:.06em;font-family:var(--font-mono);color:var(--copper-600);margin-bottom:.9em;}
.side-box ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
.side-box a{font-size:.92rem;font-weight:600;color:var(--navy-800);}
.side-box a:hover{color:var(--copper-600);}
.side-box p{font-size:.88rem;color:var(--ink-500);margin-bottom:.6em;}

.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;padding-bottom:72px;}
.guide-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow-card);}
.guide-card .dept-tag{margin-bottom:.6em;}
.guide-card h3{font-size:1.1rem;}
.guide-card p{font-size:.9rem;color:var(--ink-500);}
.guide-card a.card-link{font-size:.85rem;font-weight:700;color:var(--copper-600);}

.two-col-list{columns:2;column-gap:32px;}
.two-col-list li{break-inside:avoid;margin-bottom:.5em;}

/* =========================================================================
   FOOTER
   ========================================================================= */
footer.site-footer{background:var(--navy-950);color:var(--teal-100);padding:56px 0 0;margin-top:40px;}
.footer-top{display:grid;grid-template-columns:1.4fr repeat(4,1fr);gap:32px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08);}
.footer-brand img{height:34px;margin-bottom:14px;}
.footer-brand p{color:var(--ink-300);font-size:.9rem;max-width:32ch;}
.footer-col h5{font-family:var(--font-mono);font-size:.7rem;text-transform:uppercase;letter-spacing:.08em;color:var(--copper-300);margin-bottom:1em;}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;}
.footer-col a{font-size:.88rem;color:var(--teal-100);opacity:.9;}
.footer-col a:hover{opacity:1;color:var(--copper-300);}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;padding:22px 0;font-size:.8rem;color:var(--ink-300);flex-wrap:wrap;gap:10px;}
.footer-bottom a{color:var(--teal-300);}
.lang-select{
  font-family:var(--font-mono);font-size:.78rem;background:var(--navy-900);color:var(--cream-50);
  border:1px solid var(--navy-700);border-radius:var(--radius);padding:7px 10px;
}

/* =========================================================================
   SEARCH OVERLAY + MOBILE MENU
   ========================================================================= */
.overlay{
  position:fixed;inset:0;background:rgba(8,27,48,.92);backdrop-filter:blur(2px);
  z-index:100;display:none;align-items:flex-start;justify-content:center;padding-top:12vh;
}
.overlay.is-open{display:flex;}
.overlay-panel{width:min(560px,92vw);}
.overlay-panel input{
  width:100%;font-family:var(--font-display);font-size:1.4rem;background:transparent;
  border:0;border-bottom:2px solid var(--copper-400,#c78a52);color:var(--paper);padding:10px 2px;outline:none;
}
.overlay-panel input::placeholder{color:var(--teal-300);}
.overlay-close{position:absolute;top:24px;right:28px;color:var(--cream-50);font-size:1.4rem;background:none;border:0;cursor:pointer;}
.overlay-hint{color:var(--teal-300);font-family:var(--font-mono);font-size:.76rem;margin-top:14px;}
#search-results{margin-top:18px;display:flex;flex-direction:column;gap:6px;}
#search-results a{color:var(--cream-50);font-size:.98rem;padding:8px 4px;border-bottom:1px solid rgba(255,255,255,.08);}
#search-results a:hover{color:var(--copper-300);}
#search-results span{color:var(--teal-300);font-family:var(--font-mono);font-size:.7rem;margin-left:8px;}

.mobile-menu{
  position:fixed;inset:0;background:var(--navy-950);z-index:90;display:none;flex-direction:column;
  padding:20px 24px;overflow-y:auto;
}
.mobile-menu.is-open{display:flex;}
.mobile-menu-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:24px;}
.mobile-menu a{color:var(--cream-50);font-family:var(--font-display);font-size:1.5rem;padding:12px 0;border-bottom:1px solid rgba(255,255,255,.08);}
.mobile-menu .cta-row{margin-top:20px;display:flex;flex-direction:column;gap:10px;}

/* =========================================================================
   RESPONSIVE
   ========================================================================= */
@media (max-width: 980px){
  .hero-inner{grid-template-columns:1fr;}
  .hero-figure{order:-1;max-width:280px;margin:0 auto;}
  .stat-strip .wrap{grid-template-columns:repeat(3,1fr);}
  .stat-strip .stat:nth-child(4){border-left:0;}
  .regions-grid{grid-template-columns:repeat(2,1fr);}
  .dept-grid{grid-template-columns:repeat(2,1fr);}
  .content-layout{grid-template-columns:1fr;}
  aside.sidebar{position:static;}
  .growth{grid-template-columns:1fr;}
  .footer-top{grid-template-columns:1fr 1fr;}
  .guide-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width: 680px){
  nav.main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .stat-strip .wrap{grid-template-columns:repeat(2,1fr);}
  .regions-grid{grid-template-columns:1fr;}
  .dept-grid{grid-template-columns:1fr;}
  .board-row{grid-template-columns:1fr;gap:4px;}
  .board-time{text-align:left;}
  .footer-top{grid-template-columns:1fr;}
  .guide-grid{grid-template-columns:1fr;}
  .growth{padding:26px 24px;}
  .ticker-track span:not(:first-child){display:none;}
}