/* piling.sg — site styles */
:root{
  --navy:#0b1d36;--navy-2:#13294b;--navy-3:#1d3a66;
  --ink:#13223a;--muted:#4a5a70;--line:#dbe2ec;--soft:#f4f6f9;--white:#fff;
  --accent:#f2b31b;--accent-d:#d99a00;--ok:#1d7a4f;--err:#b42318;
  --r:10px;--sans:"IBM Plex Sans",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;--mono:"IBM Plex Mono",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--sans);font-size:17px;line-height:1.65;color:var(--ink);background:var(--white)}
img,svg{max-width:100%;display:block}
a{color:var(--navy-3);text-underline-offset:3px}
a:hover{color:var(--navy)}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
h1,h2,h3{line-height:1.2;color:var(--navy);margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.1rem);font-weight:700}
h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:700}
h3{font-size:1.15rem;font-weight:600}
p{margin:0 0 1em}
ul{padding-left:1.2em}
li{margin:.3em 0}
.wrap{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
.narrow{max-width:780px}
.sr,.skip:not(:focus){position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}
.skip:focus{position:fixed;top:8px;left:8px;z-index:99;background:var(--accent);color:var(--navy);padding:8px 14px;border-radius:6px}
.small{font-size:.88rem}
.muted{color:var(--muted)}
.eyebrow{font-family:var(--mono);font-size:.78rem;letter-spacing:.12em;text-transform:uppercase;color:var(--navy-3);margin-bottom:.8em;display:block}
.ico{width:24px;height:24px;flex:none}

/* Header */
.hdr{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.hdr-in{display:flex;align-items:center;justify-content:space-between;min-height:66px;gap:16px}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--navy);font-weight:700;font-size:1.2rem}
.brand svg{width:34px;height:34px}
.brand b{color:var(--accent-d);font-weight:700}
.nav{display:flex;align-items:center;gap:6px}
.nav a{text-decoration:none;color:var(--ink);font-weight:500;font-size:.95rem;padding:8px 10px;border-radius:6px}
.nav a:hover{background:var(--soft)}
.nav a[aria-current="page"]:not(.btn){color:var(--navy);box-shadow:inset 0 -2px 0 var(--accent)}
.menu-btn{display:none;background:none;border:0;width:44px;height:44px;cursor:pointer;position:relative}
.menu-btn i,.menu-btn i::before,.menu-btn i::after{position:absolute;left:11px;width:22px;height:2px;background:var(--navy);content:"";transition:.2s}
.menu-btn i{top:21px}.menu-btn i::before{left:0;top:-7px}.menu-btn i::after{left:0;top:7px}
.menu-btn[aria-expanded="true"] i{background:transparent}
.menu-btn[aria-expanded="true"] i::before{top:0;transform:rotate(45deg)}
.menu-btn[aria-expanded="true"] i::after{top:0;transform:rotate(-45deg)}
@media (max-width:900px){
  .menu-btn{display:block}
  .nav{display:none;position:absolute;left:0;right:0;top:66px;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;padding:10px 20px 18px;gap:2px;box-shadow:0 12px 24px rgba(11,29,54,.08)}
  .nav.open{display:flex}
  .nav a{padding:12px 8px;font-size:1rem}
  .nav .btn{margin-top:8px;text-align:center}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;text-decoration:none;border-radius:8px;padding:13px 22px;border:2px solid transparent;font-size:1rem;line-height:1.2;cursor:pointer;font-family:inherit;transition:background .15s,border-color .15s,color .15s}
.btn-sm{padding:9px 14px!important;font-size:.92rem!important}
.btn-accent{background:var(--accent);color:var(--navy)!important}
.btn-accent:hover{background:#ffc53d}
.btn-navy{background:var(--navy);color:#fff!important}
.btn-navy:hover{background:var(--navy-3)}
.btn-ghost{border-color:rgba(255,255,255,.5);color:#fff!important}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn-line{border-color:var(--navy);color:var(--navy)!important}
.btn-line:hover{background:var(--soft)}

/* Breadcrumbs */
.crumbs ol{list-style:none;padding:18px 0 0;margin:0;display:flex;flex-wrap:wrap;gap:6px;font-size:.88rem;color:var(--muted)}
.crumbs li{margin:0}
.crumbs li+li::before{content:"/";margin-right:6px;color:#9aa8bb}
.crumbs a{color:var(--muted)}

/* Hero */
.hero{background:var(--navy);color:#dfe7f2;position:relative;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);background-size:32px 32px;pointer-events:none}
.hero-in{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:76px 20px 84px}
.hero h1{color:#fff}
.hero .eyebrow{color:var(--accent)}
.hero-lede{font-size:1.18rem;color:#c9d5e6;max-width:36em}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 22px}
.hero-note{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;color:#b7c5d9;max-width:34em}
.hero-note .ico{color:var(--accent);margin-top:2px}
.hero-art{max-width:440px;justify-self:end;width:100%}
@media (max-width:900px){.hero-in{grid-template-columns:1fr;padding:52px 20px 60px;gap:32px}.hero-art{justify-self:start;max-width:360px}}

/* Page hero (inner pages) */
.phero{padding:28px 0 44px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,#fff, var(--soft))}
.phero h1{max-width:20em}
.phero .lede{font-size:1.15rem;color:var(--muted);max-width:42em;margin:0}

/* Sections */
.band{padding:72px 0}
.band-soft{background:var(--soft)}
.band-navy{background:var(--navy);color:#dfe7f2}
.band-navy h2{color:#fff}
.sec-head{max-width:46em;margin-bottom:36px}
.sec-head p{color:var(--muted);font-size:1.06rem}
@media (max-width:640px){.band{padding:52px 0}}

/* Cards */
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
@media (max-width:980px){.g4{grid-template-columns:repeat(2,1fr)}.g3{grid-template-columns:repeat(2,1fr)}}
@media (max-width:640px){.g2,.g3,.g4{grid-template-columns:1fr}}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;display:flex;flex-direction:column}
.card h3{margin-top:14px}
.card p{color:var(--muted);font-size:.98rem}
.card .more{margin-top:auto;font-weight:600;text-decoration:none;display:inline-flex;align-items:center;gap:6px}
.card .more .ico{width:18px;height:18px}
.card-ico{width:48px;height:48px;border-radius:10px;background:var(--navy);color:var(--accent);display:grid;place-items:center}
a.card{text-decoration:none;color:inherit;transition:border-color .15s,box-shadow .15s,transform .15s}
a.card:hover{border-color:var(--navy-3);box-shadow:0 10px 30px rgba(11,29,54,.08);transform:translateY(-2px)}
.type-card{border-top:3px solid var(--accent)}

/* Process */
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:s}
.steps li{margin:0;position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 18px;counter-increment:s}
.steps li::before{content:"0" counter(s);font-family:var(--mono);font-size:.85rem;color:var(--navy);background:var(--accent);border-radius:4px;padding:2px 7px;display:inline-block;margin-bottom:10px}
.steps h3{font-size:1.02rem;margin-bottom:.4em}
.steps p{font-size:.93rem;color:var(--muted);margin:0}
@media (max-width:980px){.steps{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.steps{grid-template-columns:1fr}}
.flow{width:100%;height:auto;margin:8px 0 28px}

/* Credential panel */
.cred{display:grid;grid-template-columns:auto 1fr;gap:28px;align-items:start;background:#fff;border:1px solid var(--line);border-left:5px solid var(--accent);border-radius:var(--r);padding:30px}
.cred-badge{width:92px;height:92px;border-radius:50%;background:var(--navy);color:#fff;display:grid;place-items:center;text-align:center;font-family:var(--mono);font-size:.8rem;line-height:1.2}
.cred-badge b{display:block;font-size:1.35rem;color:var(--accent);font-family:var(--sans)}
.cred dl{display:grid;grid-template-columns:max-content 1fr;gap:6px 18px;margin:14px 0}
.cred dt{color:var(--muted);font-size:.92rem}
.cred dd{margin:0;font-weight:500}
.valid{display:inline-flex;align-items:center;gap:8px;background:#fff8e6;border:1px solid #f5d27a;color:#5c4300;border-radius:999px;padding:5px 14px;font-size:.9rem;font-weight:600}
.valid .ico{width:18px;height:18px}
@media (max-width:640px){.cred{grid-template-columns:1fr;padding:22px}.cred dl{grid-template-columns:1fr;gap:2px}.cred dd{margin-bottom:8px}}

/* Content blocks */
.prose{max-width:46em}
.prose h2{margin-top:1.6em}
.prose h3{margin-top:1.3em}
.two-col{display:grid;grid-template-columns:1.6fr 1fr;gap:48px;align-items:start}
@media (max-width:900px){.two-col{grid-template-columns:1fr;gap:28px}}
.aside{position:sticky;top:90px;background:var(--soft);border:1px solid var(--line);border-radius:var(--r);padding:24px}
.aside h2{font-size:1.15rem}
.aside ul{list-style:none;padding:0;margin:0 0 18px}
.aside li a{text-decoration:none;display:block;padding:7px 0;border-bottom:1px solid var(--line)}
.aside li a[aria-current="page"]{font-weight:700;color:var(--navy)}
@media (max-width:900px){.aside{position:static}}
.ticks{list-style:none;padding:0}
.ticks li{position:relative;padding-left:30px;margin:.55em 0}
.ticks li::before{content:"";position:absolute;left:4px;top:.42em;width:14px;height:8px;border-left:2.5px solid var(--ok);border-bottom:2.5px solid var(--ok);transform:rotate(-45deg)}
.note{background:#fff8e6;border:1px solid #f5d27a;border-radius:var(--r);padding:16px 20px;font-size:.96rem;color:#3d3000;margin:1.4em 0}
.note strong{color:#3d3000}
.table{width:100%;border-collapse:collapse;font-size:.95rem;margin:1em 0 1.6em}
.table th,.table td{text-align:left;padding:10px 12px;border-bottom:1px solid var(--line);vertical-align:top}
.table th{background:var(--soft);color:var(--navy);font-weight:600}
.tbl-wrap{overflow-x:auto}

/* FAQ */
.faq details{border-bottom:1px solid var(--line);padding:4px 0}
.faq summary{cursor:pointer;list-style:none;padding:16px 36px 16px 0;font-weight:600;color:var(--navy);position:relative;font-size:1.04rem}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";position:absolute;right:6px;top:12px;font-size:1.5rem;color:var(--navy-3);font-weight:400}
.faq details[open] summary::after{content:"–"}
.faq details p{color:var(--muted);margin:0 0 16px;max-width:52em}

/* CTA band */
.cta{display:flex;justify-content:space-between;align-items:center;gap:32px;flex-wrap:wrap}
.cta p{color:#c9d5e6;max-width:40em;margin:0}
.cta-btns{display:flex;flex-wrap:wrap;gap:12px}

/* Form */
.form{display:grid;grid-template-columns:1fr 1fr;gap:18px 20px}
.form .full{grid-column:1/-1}
.field label,.field legend{display:block;font-weight:600;font-size:.95rem;margin-bottom:6px;color:var(--navy)}
.field .opt{font-weight:400;color:var(--muted);font-size:.88rem}
.field input[type=text],.field input[type=email],.field input[type=tel],.field select,.field textarea{width:100%;font:inherit;font-size:1rem;padding:11px 13px;border:1.5px solid #b9c5d6;border-radius:8px;background:#fff;color:var(--ink)}
.field textarea{min-height:140px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--navy-3);outline:3px solid rgba(242,179,27,.45);outline-offset:0}
.field fieldset{border:0;padding:0;margin:0}
.checks{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px}
.checks label,.consent label{display:flex;gap:10px;align-items:flex-start;font-weight:400;color:var(--ink);font-size:.96rem;margin:0}
.checks input,.consent input{width:18px;height:18px;margin-top:3px;accent-color:var(--navy);flex:none}
.hint{font-size:.86rem;color:var(--muted);margin:6px 0 0}
.err-msg{color:var(--err);font-size:.88rem;margin:4px 0 0;min-height:1.35em;visibility:hidden}
.field.invalid input,.field.invalid select,.field.invalid textarea{border-color:var(--err)}
.field.invalid .err-msg{visibility:visible}
.hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.form-alert{grid-column:1/-1;background:#fdecea;border:1px solid #f5c2bd;color:#7a1a12;border-radius:8px;padding:12px 16px;display:none}
.form-alert.show{display:block}
@media (max-width:640px){.form{grid-template-columns:1fr}.checks{grid-template-columns:1fr}}
.contact-cards{display:grid;gap:14px}
.ccard{display:flex;gap:14px;align-items:center;text-decoration:none;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:16px 18px;color:var(--ink)}
.ccard:hover{border-color:var(--navy-3)}
.ccard .card-ico{width:42px;height:42px}
.ccard b{display:block;color:var(--navy)}

/* Footer */
.ftr{background:#071427;color:#aebcd0;padding:56px 0 28px;font-size:.95rem}
.ftr a{color:#dbe4f0;text-decoration:none}
.ftr a:hover{text-decoration:underline}
.ftr-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.ftr-brand{font-size:1.3rem;font-weight:700;color:#fff;margin-bottom:.5em}
.ftr-brand b{color:var(--accent)}
.ftr-h{font-size:.82rem;font-family:var(--mono);letter-spacing:.1em;text-transform:uppercase;color:#8fa3bf;margin-bottom:12px}
.ftr ul{list-style:none;padding:0;margin:0}
.ftr-legal{border-top:1px solid #1d2f4d;margin-top:36px;padding-top:22px;font-size:.84rem;color:#8fa3bf}
.ftr-legal strong{color:#c4d0e0}
@media (max-width:900px){.ftr-grid{grid-template-columns:1fr 1fr}}
@media (max-width:560px){.ftr-grid{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
@media (max-width:640px){.flow{display:none}}
.band .lede{font-size:1.12rem}
html{scroll-padding-top:96px}
.prose>h2:first-child,.prose>.eyebrow+h2{margin-top:0}
.wa-float{position:fixed;right:20px;bottom:calc(20px + env(safe-area-inset-bottom));z-index:60;display:inline-flex;align-items:center;gap:8px;background:#1f9d55;color:#fff;text-decoration:none;font-weight:600;padding:12px 18px 12px 14px;border-radius:999px;box-shadow:0 8px 24px rgba(11,29,54,.25);transition:background .15s,transform .15s}
.wa-float:hover{background:#178a49;color:#fff;transform:translateY(-2px)}
.wa-float .ico{width:24px;height:24px}
@media (max-width:640px){.wa-float{padding:14px;right:16px;bottom:calc(16px + env(safe-area-inset-bottom))}.wa-float span{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}}
@media print{.wa-float{display:none}}
@media (max-width:640px){.ftr{padding-bottom:96px}}
.adv-band{align-items:center}
.adv-band p{color:#c9d5e6}
.adv-band .cta-btns{margin-top:22px}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-left:5px solid var(--accent);border-radius:var(--r);padding:28px}
.stat-num{font-family:var(--mono);font-size:clamp(2.4rem,6vw,3.4rem);font-weight:500;color:#fff;line-height:1;margin:0 0 10px}
.stat-label{font-weight:600;color:#fff!important;margin:0 0 6px}
.stat .small{color:#9fb0c6!important;margin:0}
.adv-list .card h3{margin-top:0}
.band-navy .eyebrow{color:var(--accent)}