/* Zengin Ship Agency — site.css
   Palette: admiralty chart. Ink hull, steel haze paper, starboard green.
   All spacing uses logical properties so ar/he render correctly in RTL. */

:root{
  --ink:#06171F;
  --hull:#0C2A37;
  --deep:#12455C;
  --haze:#E7EDEE;
  --haze-2:#DAE3E5;
  --paper:#FFFFFF;
  --starboard:#00A472;
  --starboard-deep:#00754F;
  --portside:#D6402E;
  --sounding:#5F7A85;
  --on-dark:#DCE7EA;
  --on-dark-mute:#8FA8B2;
  --rule:#C6D3D6;
  --rule-dark:rgba(220,231,234,.16);

  --f-body:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-head:"IBM Plex Sans Condensed","IBM Plex Sans",system-ui,sans-serif;

  --step--1:.8125rem;
  --step-0:1.0625rem;
  --step-1:1.3125rem;
  --step-2:1.625rem;
  --step-3:2.125rem;
  --step-4:2.875rem;
  --step-5:3.75rem;

  --gap:clamp(1.5rem,4vw,3rem);
  --pad:clamp(1.1rem,4vw,2.5rem);
  --wide:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{animation-duration:.01ms!important;transition-duration:.01ms!important}}

body{
  margin:0;
  font-family:var(--f-body);
  font-size:var(--step-0);
  line-height:1.6;
  color:var(--ink);
  background:var(--haze);
  -webkit-font-smoothing:antialiased;
}
body[lang="zh"]{--f-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;--f-head:var(--f-body);line-height:1.75}
body[lang="ar"]{--f-body:"IBM Plex Sans Arabic",system-ui,sans-serif;--f-head:var(--f-body);line-height:1.8}
body[lang="he"]{--f-body:"IBM Plex Sans Hebrew",system-ui,sans-serif;--f-head:var(--f-body);line-height:1.7}

h1,h2,h3{font-family:var(--f-head);font-weight:600;line-height:1.1;margin:0;letter-spacing:-.01em}
p{margin:0 0 1em}
a{color:inherit}
img{max-width:100%;height:auto;display:block}
ul{margin:0;padding:0;list-style:none}

:focus-visible{outline:3px solid var(--starboard);outline-offset:3px;border-radius:2px}

.skip{position:absolute;inset-inline-start:-9999px;top:0;background:var(--starboard);color:#fff;padding:.7rem 1rem;z-index:100}
.skip:focus{inset-inline-start:0}

.wrap{max-width:var(--wide);margin-inline:auto;padding-inline:var(--pad)}
.prose{max-width:64ch}

/* ---------- bridge bar: phone + mail visible on arrival ---------- */
.bridge{
  position:sticky;top:0;z-index:60;
  background:var(--ink);
  border-bottom:1px solid var(--rule-dark);
}
.bridge__in{
  display:flex;align-items:center;gap:1.25rem;
  min-height:56px;flex-wrap:wrap;
}
.duty{
  display:inline-flex;align-items:center;gap:.5rem;
  color:var(--on-dark-mute);font-size:var(--step--1);
  margin-inline-end:auto;
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--starboard);box-shadow:0 0 0 0 rgba(0,164,114,.6);animation:ping 2.6s ease-out infinite}
@keyframes ping{0%{box-shadow:0 0 0 0 rgba(0,164,114,.55)}70%{box-shadow:0 0 0 9px rgba(0,164,114,0)}100%{box-shadow:0 0 0 0 rgba(0,164,114,0)}}

.bridge a{
  color:var(--on-dark);text-decoration:none;
  display:inline-flex;align-items:center;gap:.45rem;
  font-size:var(--step--1);
}
.bridge a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.bridge .tel{
  font-family:var(--f-head);font-size:var(--step-1);font-weight:600;
  letter-spacing:.01em;font-variant-numeric:tabular-nums;color:#fff;
  direction:ltr;
}
.bridge svg{width:16px;height:16px;flex:none;fill:none;stroke:currentColor;stroke-width:1.7}

/* language menu */
.lang{position:relative;font-size:var(--step--1)}
.lang>summary{
  list-style:none;cursor:pointer;color:var(--on-dark);
  display:inline-flex;align-items:center;gap:.4rem;
  padding:.35rem .65rem;border:1px solid var(--rule-dark);border-radius:2px;
}
.lang>summary::-webkit-details-marker{display:none}
.lang>summary:hover{border-color:var(--on-dark-mute)}
.lang__menu{
  position:absolute;inset-inline-end:0;top:calc(100% + .5rem);
  background:var(--paper);border:1px solid var(--rule);
  min-width:200px;padding:.4rem;z-index:70;
  box-shadow:0 18px 40px rgba(6,23,31,.28);
  display:grid;grid-template-columns:1fr 1fr;gap:2px;
}
.lang__menu a{display:block;padding:.45rem .6rem;color:var(--ink);font-size:var(--step--1)}
.lang__menu a:hover,.lang__menu a[aria-current]{background:var(--haze);text-decoration:none}
.lang__menu a[aria-current]{font-weight:600;box-shadow:inset 3px 0 0 var(--starboard)}

/* ---------- header / nav ---------- */
.masthead{background:var(--hull);color:var(--on-dark)}
.masthead__in{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding-block:.9rem;flex-wrap:wrap}

/* wordmark */
.brand{display:inline-flex;align-items:center;gap:.7rem;text-decoration:none;color:var(--starboard)}
.mark{width:34px;height:34px;flex:none}
.brand__txt{display:flex;flex-direction:column;line-height:1}
.brand__txt b{font-family:var(--f-head);font-weight:700;font-size:1.35rem;letter-spacing:.06em;color:#fff}
.brand__txt em{font-style:normal;font-size:.78rem;letter-spacing:.14em;color:var(--on-dark-mute);margin-top:.25rem}
.brand:hover .brand__txt b{color:var(--starboard)}
.nav{display:flex;gap:1.4rem;flex-wrap:wrap}
.nav a{
  font-family:var(--f-head);font-size:var(--step-0);text-decoration:none;
  color:var(--on-dark);padding-block:.2rem;border-bottom:2px solid transparent;
}
.nav a:hover{border-bottom-color:var(--starboard);color:#fff}

/* ---------- hero ---------- */
.hero{position:relative;background:var(--hull);color:var(--on-dark);overflow:hidden;isolation:isolate}
.hero__chart{position:absolute;inset:0;z-index:-1;opacity:.5}
.hero__chart svg{width:100%;height:100%}
.hero__in{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:var(--gap);padding-block:clamp(2.5rem,7vw,5rem)}
@media (max-width:860px){.hero__in{grid-template-columns:1fr}}

.kicker{
  font-family:var(--f-head);font-size:var(--step--1);color:var(--starboard);
  letter-spacing:.06em;margin:0 0 1rem;
}
.hero h1{font-size:var(--step-5);color:#fff;max-width:14ch;text-wrap:balance}
.hero__lede{font-size:var(--step-1);color:var(--on-dark);max-width:52ch;margin-block:1.4rem 2rem}

.actions{display:flex;gap:.75rem;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:.55rem;
  font-family:var(--f-head);font-size:var(--step-0);font-weight:600;
  padding:.85rem 1.5rem;text-decoration:none;border:2px solid transparent;
  transition:background .15s,color .15s,border-color .15s;
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;flex:none}
.btn--go{background:var(--starboard);color:#04211A}
.btn--go:hover{background:#00c286}
.btn--line{border-color:var(--on-dark-mute);color:var(--on-dark)}
.btn--line:hover{border-color:#fff;color:#fff}
.btn--dark{background:var(--ink);color:#fff}
.btn--dark:hover{background:var(--deep)}

/* port-of-call readout */
.readout{background:rgba(6,23,31,.72);border:1px solid var(--rule-dark);padding:1.5rem;align-self:start;backdrop-filter:blur(2px)}
.readout h2{font-size:var(--step-0);color:var(--starboard);letter-spacing:.06em;margin-bottom:1rem}
.readout dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:.1rem 1rem}
.readout dt{color:var(--on-dark-mute);font-size:var(--step--1);padding-block:.55rem;border-top:1px solid var(--rule-dark)}
.readout dd{margin:0;text-align:end;color:#fff;font-size:var(--step--1);padding-block:.55rem;border-top:1px solid var(--rule-dark);font-variant-numeric:tabular-nums}
.readout__note{margin:1.1rem 0 0;font-size:var(--step--1);color:var(--on-dark-mute);line-height:1.5}

/* ---------- call strip ---------- */
.strip{background:var(--starboard);color:#04211A}
.strip__in{display:flex;align-items:center;justify-content:space-between;gap:1.5rem;padding-block:1.6rem;flex-wrap:wrap}
.strip h2{font-size:var(--step-2)}
.strip p{margin:.3rem 0 0;max-width:46ch}
.strip__links{display:flex;gap:1.5rem;flex-wrap:wrap;align-items:center}
.strip__tel{
  font-family:var(--f-head);font-size:var(--step-3);font-weight:600;
  color:#04211A;text-decoration:none;font-variant-numeric:tabular-nums;direction:ltr;
  border-bottom:2px solid rgba(4,33,26,.35);
}
.strip__tel:hover{border-bottom-color:#04211A}
.strip__mail{color:#04211A;font-size:var(--step-0)}

/* ---------- sections ---------- */
section{padding-block:clamp(3rem,7vw,5.5rem)}
.sec__head{max-width:60ch;margin-bottom:clamp(2rem,4vw,3rem)}
.sec__head--tight{margin-bottom:1.75rem}
.h-sm{font-size:var(--step-2)!important}
.sec--refs{background:var(--haze-2);padding-block:clamp(2.5rem,5vw,3.5rem)}
.sec__head h2{font-size:var(--step-4);text-wrap:balance}
.sec__head p{margin-top:.9rem;color:var(--sounding);font-size:var(--step-1)}
.sec--dark{background:var(--ink);color:var(--on-dark)}
.sec--dark .sec__head h2{color:#fff}
.sec--dark .sec__head p{color:var(--on-dark-mute)}
.sec--paper{background:var(--paper)}

/* services */
.svcs{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:1px;background:var(--rule);border:1px solid var(--rule)}
.svc{background:var(--paper);padding:1.75rem}
.svc h3{font-size:var(--step-2);margin-bottom:.6rem}
.svc p{color:var(--sounding);margin-bottom:1rem}
.svc li{padding-block:.4rem;border-top:1px solid var(--haze-2);font-size:var(--step--1);display:flex;gap:.6rem}
.svc li::before{content:"";width:6px;height:6px;margin-top:.55em;flex:none;background:var(--starboard)}

/* port call sequence — the one bold element */
.calls{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:0}
.call{position:relative;padding:2.25rem 1.5rem 1.75rem;border-top:2px solid var(--rule-dark)}
.call::before{
  content:"";position:absolute;top:-7px;inset-inline-start:1.5rem;
  width:12px;height:12px;background:var(--ink);border:2px solid var(--starboard);border-radius:50%;
}
.call__n{
  font-family:var(--f-head);font-size:var(--step--1);color:var(--starboard);
  font-variant-numeric:tabular-nums;letter-spacing:.1em;display:block;margin-bottom:.4rem;
}
.call h3{font-size:var(--step-1);color:#fff;margin-bottom:.5rem}
.call p{color:var(--on-dark-mute);font-size:var(--step--1);line-height:1.65;margin:0}

/* documents */
.docs{columns:2;column-gap:2.5rem}
@media (max-width:720px){.docs{columns:1}}
.docs li{break-inside:avoid;padding:.6rem 0 .6rem 1.6rem;border-bottom:1px solid var(--haze-2);position:relative;font-size:var(--step-0)}
[dir="rtl"] .docs li{padding:.6rem 1.6rem .6rem 0}
.docs li::before{
  content:"";position:absolute;inset-inline-start:0;top:1.15em;
  width:9px;height:1px;background:var(--starboard);box-shadow:0 4px 0 var(--rule)
}

/* about */
.about{display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:var(--gap);align-items:start}
@media (max-width:860px){.about{grid-template-columns:1fr}}
.stats{border-top:2px solid var(--ink)}
.stat{padding-block:1.1rem;border-bottom:1px solid var(--rule)}
.stat b{display:block;font-family:var(--f-head);font-size:var(--step-3);font-weight:600;line-height:1;font-variant-numeric:tabular-nums}
.stat span{font-size:var(--step--1);color:var(--sounding)}

/* references */
.refs{display:flex;flex-wrap:wrap;gap:2.5rem;align-items:center;justify-content:center}
.refs img{height:52px;width:auto;opacity:.62;filter:grayscale(1);transition:opacity .2s,filter .2s}
.refs img:hover{opacity:1;filter:none}

/* client name plates (used until logo files are supplied) */
.plates{display:grid;grid-template-columns:repeat(auto-fill,minmax(215px,1fr));gap:1px;
  background:var(--rule);border:1px solid var(--rule)}
.plates li{background:var(--haze);padding:1rem 1.1rem;font-family:var(--f-head);
  font-size:var(--step-0);color:var(--deep);display:flex;align-items:center;gap:.7rem}
.plates li::before{content:"";width:3px;height:1.1em;background:var(--starboard);flex:none}

/* faq */
.faq{border-top:1px solid var(--rule);max-width:80ch}
.qa{border-bottom:1px solid var(--rule)}
.qa summary{
  cursor:pointer;list-style:none;padding:1.15rem 2.5rem 1.15rem 0;
  font-family:var(--f-head);font-size:var(--step-1);position:relative;
}
[dir="rtl"] .qa summary{padding:1.15rem 0 1.15rem 2.5rem}
.qa summary::-webkit-details-marker{display:none}
.qa summary::after{
  content:"";position:absolute;inset-inline-end:.5rem;top:1.6rem;
  width:11px;height:11px;border-inline-end:2px solid var(--starboard);border-block-end:2px solid var(--starboard);
  transform:rotate(45deg);transition:transform .2s
}
.qa[open] summary::after{transform:rotate(225deg);top:1.9rem}
.qa p{margin:0 0 1.3rem;color:var(--sounding);max-width:70ch}

/* contact */
.contact{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:var(--gap)}
@media (max-width:860px){.contact{grid-template-columns:1fr}}
.field{margin-bottom:1rem}
.field label{display:block;font-size:var(--step--1);color:var(--on-dark-mute);margin-bottom:.35rem}
.field input,.field textarea{
  width:100%;font:inherit;font-size:var(--step-0);color:#fff;
  background:rgba(255,255,255,.05);border:1px solid var(--rule-dark);
  padding:.7rem .85rem;border-radius:0;
}
.field input:focus,.field textarea:focus{border-color:var(--starboard);background:rgba(255,255,255,.09)}
.field textarea{min-height:110px;resize:vertical}
.form__note{font-size:var(--step--1);color:var(--on-dark-mute);margin-top:.8rem}
.pair{display:grid;grid-template-columns:1fr 1fr;gap:1rem}
@media (max-width:520px){.pair{grid-template-columns:1fr}}

.card{border:1px solid var(--rule-dark);padding:1.5rem}
.card dl{margin:0}
.card dt{font-size:var(--step--1);color:var(--on-dark-mute);margin-top:1.1rem}
.card dt:first-child{margin-top:0}
.card dd{margin:.2rem 0 0}
.card dd a{color:#fff;font-family:var(--f-head);font-size:var(--step-2);text-decoration:none;border-bottom:1px solid var(--starboard);direction:ltr;display:inline-block}
.card dd a:hover{color:var(--starboard)}
.card dd.plain{color:var(--on-dark)}
.card dd a.sm{font-size:var(--step-0);font-family:var(--f-body);border-bottom-color:var(--rule-dark)}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}

/* footer */
.foot{background:var(--ink);color:var(--on-dark-mute);border-top:1px solid var(--rule-dark);padding-block:2.5rem}
.foot__top{display:flex;justify-content:space-between;gap:2rem;flex-wrap:wrap;padding-bottom:1.75rem;border-bottom:1px solid var(--rule-dark)}
.foot__brand{max-width:34ch}
.foot__brand p{margin:1rem 0 0;font-size:var(--step--1)}
.foot h2{font-size:var(--step--1);color:var(--on-dark);letter-spacing:.06em;margin-bottom:.8rem}
.foot__langs{display:flex;flex-wrap:wrap;gap:.4rem 1.1rem;max-width:620px}
.foot__langs a{font-size:var(--step--1);color:var(--on-dark-mute);text-decoration:none}
.foot__langs a:hover,.foot__langs a[aria-current]{color:var(--starboard)}
.foot__end{padding-top:1.5rem;font-size:var(--step--1);display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap}

/* mobile call dock */
.dock{display:none}
@media (max-width:720px){
  .hero h1{font-size:var(--step-4)}
  .bridge .tel{font-size:var(--step-0)}
  .duty{width:100%;order:-1;padding-top:.5rem}
  .dock{
    display:grid;grid-template-columns:1fr 1fr;position:fixed;bottom:0;inset-inline:0;z-index:80;
    border-top:1px solid rgba(0,0,0,.15)
  }
  .dock a{
    display:flex;align-items:center;justify-content:center;gap:.5rem;
    padding:.95rem;text-decoration:none;font-family:var(--f-head);font-weight:600;font-size:var(--step-0)
  }
  .dock svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8}
  .dock .d-call{background:var(--starboard);color:#04211A}
  .dock .d-mail{background:var(--ink);color:#fff}
  body{padding-bottom:56px}
}

/* language chooser landing (root) */
.pick{min-height:100vh;display:grid;place-items:center;background:var(--hull);color:var(--on-dark);text-align:center;padding:var(--pad)}
.pick h1{font-size:var(--step-3);color:#fff;margin-bottom:.5rem}
.pick__grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:1px;background:var(--rule-dark);border:1px solid var(--rule-dark);margin-top:2rem;max-width:760px}
.pick__grid a{background:var(--hull);padding:1rem;text-decoration:none;color:var(--on-dark);font-family:var(--f-head);font-size:var(--step-1)}
.pick__grid a:hover{background:var(--ink);color:var(--starboard)}
.pick__mark{margin:0 0 1.25rem;color:var(--starboard)}
.pick__mark .mark{width:56px;height:56px;margin:0 auto}
.pick h1{font-family:var(--f-head);letter-spacing:.04em}
.pick__sub{color:var(--on-dark-mute);max-width:52ch;margin-inline:auto}
.pick__contact{margin-top:1.5rem;line-height:2}
.pick__contact a{font-family:var(--f-head);font-size:var(--step-3);font-weight:600;
  color:var(--starboard);text-decoration:none;direction:ltr}
.pick__contact a.sm{font-family:var(--f-body);font-size:var(--step-0);color:var(--on-dark)}
.pick__contact a:hover{text-decoration:underline;text-underline-offset:4px}