/* Sairam Marine – Tugs, Towage & Salvage site. Shared styles (no build step). */
:root{--navy:#082a55;--navy2:#0a4a94;--blue:#0a5bb5;--sky:#e8f1fb;--ink:#1b2430;--muted:#4f5b6a;--line:#dbe4ef;--wa:#25d366;--wa-dark:#128c4a;--accent:#ffb400}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;font:16px/1.6 system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;color:var(--ink);background:#fff;padding-bottom:76px}
a{color:var(--blue)}
img{max-width:100%;height:auto}
.wrap{max-width:1120px;margin:0 auto;padding:0 18px}
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:8px 12px;z-index:100}
.skip:focus{left:8px;top:8px}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px}

/* Header */
header.top{background:#fff;border-bottom:1px solid #e3e8ef;position:sticky;top:0;z-index:40}
header.top .wrap{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:64px}
header.top .brand img{height:40px;width:auto;display:block}
nav.main ul{list-style:none;margin:0;padding:0;display:flex;gap:4px;align-items:center}
nav.main a{display:block;padding:8px 12px;border-radius:6px;text-decoration:none;color:var(--navy);font-weight:600;font-size:15px}
nav.main a:hover,nav.main a[aria-current="page"]{background:var(--sky)}
nav.main a.nav-call{background:var(--navy);color:#fff;margin-left:6px}
nav.main a.nav-call:hover{background:var(--navy2)}
.menu-btn{display:none;background:none;border:1px solid #c9d7e8;border-radius:6px;padding:8px 12px;font:inherit;font-weight:600;color:var(--navy);cursor:pointer}
@media(max-width:820px){
  .menu-btn{display:block}
  nav.main{position:absolute;left:0;right:0;top:64px;background:#fff;border-bottom:1px solid #e3e8ef;box-shadow:0 8px 16px rgba(0,0,0,.08);display:none}
  nav.main.open{display:block}
  nav.main ul{flex-direction:column;align-items:stretch;padding:8px 18px 14px}
  nav.main a{padding:12px}
  nav.main a.nav-call{margin:6px 0 0;text-align:center}
}

/* Hero */
.hero{background:linear-gradient(160deg,#082a55,#0a4a94);color:#fff;padding:44px 0 48px}
.hero.small{padding:34px 0 36px}
.hero h1{font-size:clamp(28px,5.6vw,46px);line-height:1.15;margin:0 0 14px;max-width:880px}
.hero.small h1{font-size:clamp(26px,4.6vw,38px)}
.hero p.lead{font-size:clamp(16px,2.4vw,19px);max-width:760px;margin:0 0 22px;color:#dce8f7}
.hero a:not(.btn){color:#fff}
.badges{display:flex;flex-wrap:wrap;gap:8px;margin:0 0 24px;padding:0;list-style:none}
.badges li{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.28);border-radius:99px;padding:5px 12px;font-size:14px}
.crumbs{font-size:14px;margin:0 0 10px;color:#cfe0f5}
.crumbs a{color:#fff}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:8px;padding:13px 20px;font-weight:700;text-decoration:none;font-size:16px;border:2px solid transparent;cursor:pointer;line-height:1.2;font-family:inherit}
.btn svg{width:18px;height:18px;flex:none}
.btn-wa{background:var(--wa-dark);color:#fff}
.btn-wa:hover{background:#0f7a40}
.btn-call{background:#fff;color:var(--navy)}
.btn-mail{background:transparent;color:#fff;border-color:#fff}
.btn-navy{background:var(--navy);color:#fff}
.btn-navy:hover{background:var(--navy2)}
.btn-accent{background:var(--accent);color:#1b2430}
.btn-outline{background:#fff;color:var(--navy);border-color:var(--navy)}
.cta-row{display:flex;flex-wrap:wrap;gap:10px}

/* Sections */
section{padding:44px 0}
section.alt{background:var(--sky)}

/* Photo background layers (static; no parallax, no fixed attachment, no animation).
   Each photo is a swappable file in assets/img/ (see assets/img/CREDITS.md). */
.hero,.band,.area-head{position:relative;isolation:isolate;overflow:hidden}
.bg{position:absolute;top:0;right:0;bottom:0;left:0;z-index:-2;margin:0}
.bg img{display:block;width:100%;height:100%;object-fit:cover}
.hero::before,.band::before,.area-head::before{content:"";position:absolute;top:0;right:0;bottom:0;left:0;z-index:-1;background:linear-gradient(160deg,rgba(6,26,48,.82),rgba(6,26,48,.68))}
.band{background:var(--navy);color:#fff}
.band h2{color:#fff}
.band .sub{color:#e6eef8}
.band .sub a,.band>.wrap>p a{color:#fff}
.band .areas a{background:rgba(255,255,255,.95)}
.hero h1,.band h2,.area-head h2{text-shadow:0 1px 3px rgba(0,0,0,.35)}
h2{font-size:clamp(22px,3.8vw,30px);line-height:1.25;margin:0 0 8px;color:var(--navy)}
h3{color:var(--navy);line-height:1.3}
.sub{color:var(--muted);margin:0 0 22px;max-width:780px}
.grid{display:grid;gap:14px;grid-template-columns:1fr}
@media(min-width:720px){.grid{grid-template-columns:1fr 1fr}.grid.three{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;border:1px solid var(--line);border-radius:10px;padding:18px}
.card h3{margin:0 0 6px;font-size:18px}
.card p{margin:0 0 8px;color:#34404e;font-size:15px}
.card p:last-child{margin-bottom:0}
.card .more{font-weight:600;font-size:15px}
.card ul{margin:6px 0 0;padding-left:18px;color:#34404e;font-size:15px}
.areas{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0;margin:0}
.areas a{display:block;background:#fff;border:1px solid #c9d7e8;border-radius:6px;padding:7px 12px;font-weight:600;color:var(--navy);text-decoration:none}
.areas a:hover{border-color:var(--navy)}
ol.steps{padding-left:20px;margin:0}
ol.steps li{margin:0 0 8px}
.ticks{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.ticks li{padding-left:28px;position:relative}
.ticks li::before{content:"";position:absolute;left:4px;top:.45em;width:12px;height:7px;border-left:3px solid var(--blue);border-bottom:3px solid var(--blue);transform:rotate(-45deg)}

/* Service detail blocks */
.svc{border-top:1px solid var(--line);padding:26px 0}
.svc:first-of-type{border-top:0;padding-top:0}
.svc h2{scroll-margin-top:80px}
.bp{display:grid;gap:12px;grid-template-columns:1fr;margin:14px 0}
@media(min-width:720px){.bp{grid-template-columns:repeat(3,1fr)}}
.bp div{background:var(--sky);border-radius:10px;padding:16px;border:1px solid var(--line)}
.bp strong{display:block;font-size:26px;color:var(--navy);line-height:1.1}
.bp span{font-size:14px;color:var(--muted)}

/* Coverage */
.area{padding:30px 0;border-top:1px solid var(--line);scroll-margin-top:70px}
.area:first-of-type{border-top:0}
.area-head{background:var(--navy);border-radius:10px;padding:56px 20px 20px;margin-bottom:14px;color:#fff}
.area-head h2{color:#fff;margin:0}
.area h2 small{display:block;font-size:14px;font-weight:600;color:#e6eef8;letter-spacing:.02em;text-transform:uppercase;margin-bottom:4px}
.area .cta-box{background:var(--sky);border:1px solid var(--line);border-radius:10px;padding:14px 16px;display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between;margin-top:14px}
.area .cta-box p{margin:0;font-weight:700;color:var(--navy)}
.toc{columns:2;gap:24px;padding-left:18px;margin:0}
@media(min-width:720px){.toc{columns:4}}

/* Contact / form */
.contact-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:900px){.contact-grid{grid-template-columns:1.4fr 1fr}}
form{display:grid;gap:12px}
label{font-weight:600;font-size:14px;display:block;margin-bottom:4px}
input,select,textarea{width:100%;font:inherit;padding:11px 12px;border:1px solid #8a9bb0;border-radius:7px;background:#fff;color:var(--ink)}
textarea{min-height:110px}
.two{display:grid;gap:12px;grid-template-columns:1fr}
@media(min-width:620px){.two{grid-template-columns:1fr 1fr}}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.note{font-size:13px;color:var(--muted)}
.req{color:#b3261e}
dl.details{margin:0;display:grid;gap:10px}
dl.details dt{font-weight:700;color:var(--navy);font-size:14px}
dl.details dd{margin:0 0 6px}
.form-status{font-weight:600;color:var(--navy)}

/* Sister companies */
.sister{display:grid;gap:14px;grid-template-columns:1fr 1fr;align-items:stretch}
.sister a{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;background:#fff;border:1px solid var(--line);border-radius:10px;padding:16px 12px;text-decoration:none;color:var(--ink);text-align:center}
.sister .logo{height:104px;display:flex;align-items:center;justify-content:center}
.sister img{max-height:104px;width:auto}
.sister img.sr{max-height:64px}
.sister strong{color:var(--navy);font-size:15px}
.sister span{font-size:14px;color:#34404e}

/* Footer */
footer{background:var(--navy);color:#d7e3f1;padding:34px 0 28px;font-size:14px}
footer a{color:#fff}
footer h2{color:#fff;font-size:16px;margin:0 0 10px}
.foot-grid{display:grid;gap:22px;grid-template-columns:1fr}
@media(min-width:820px){.foot-grid{grid-template-columns:1.3fr 1fr 1fr}}
footer address{font-style:normal}
footer ul{list-style:none;margin:0;padding:0;display:grid;gap:4px}
footer .sister a{border:0;padding:12px 8px}
footer .sister .logo{height:62px}
footer .sister img{max-height:62px}
footer .sister img.sr{max-height:44px}
footer .sister strong{font-size:13px}
.legal{border-top:1px solid rgba(255,255,255,.18);margin-top:22px;padding-top:14px;font-size:13px;color:#b9cbe0}

/* Sticky mobile bar */
.sticky{position:fixed;left:0;right:0;bottom:0;display:flex;gap:8px;padding:10px;background:rgba(255,255,255,.97);box-shadow:0 -2px 12px rgba(0,0,0,.15);z-index:50}
.sticky a{flex:1}
.sticky .btn-call{background:var(--navy);color:#fff}
@media(min-width:900px){
  body{padding-bottom:0}
  .sticky{left:auto;right:18px;bottom:18px;background:none;box-shadow:none;padding:0;width:auto}
  .sticky a{box-shadow:0 4px 14px rgba(0,0,0,.2)}
  .sticky .btn-call{display:none}
}
@media print{.sticky,header.top nav,.menu-btn{display:none}}