/* ============================================================
   L&S Advance Sdn. Bhd. — styles.css
   Industrial blue + yellow theme (matched to the brand logo)
   Mobile-first, no framework.
   ============================================================ */

:root {
  /* Brand palette (blue + yellow, sampled from LS Logo.png) */
  --navy-900: #0a1650;   /* deepest bg: hero, footer */
  --navy-800: #0e1e63;   /* dark bands */
  --navy-700: #16297f;   /* cards on dark, borders */
  --blue:      #252ec9;  /* brand royal blue: contact band, links */
  --blue-600:  #1e26ad;  /* blue hover */
  --yellow:    #fcf00f;  /* accent: CTAs, section numbers, rules */
  --yellow-deep:#f2d900; /* yellow hover/pressed */

  --light:     #f4f6fa;  /* light bands */
  --light-alt: #e9edf5;  /* alt light surface */
  --white:     #ffffff;

  --ink:    #0a1650;     /* text on light */
  --ink-soft:#39456e;    /* secondary text on light */
  --paper:  #eef2fb;     /* text on dark */
  --muted:  #a7b6e0;     /* secondary text on dark */

  --ring: rgba(37,46,201,.35);

  --maxw: 1120px;
  --pad: clamp(1.1rem, 4vw, 2.5rem);
  --radius: 14px;
  --radius-sm: 10px;

  --ff-display: "Oswald", "Arial Narrow", system-ui, sans-serif;
  --ff-body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;

  --shadow: 0 18px 40px -18px rgba(5, 12, 45, .45);
  --shadow-sm: 0 8px 20px -12px rgba(5, 12, 45, .5);
}

/* ---------------------------- Reset-ish ---------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--ff-body);
  color: var(--ink);
  background: var(--navy-900);
  line-height: 1.6;
  font-size: clamp(1rem, .96rem + .2vw, 1.075rem);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--ff-display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: .01em;
  margin: 0;
}

/* offset anchor targets for the sticky header */
:target { scroll-margin-top: 84px; }

/* --------------------------- Utilities --------------------------- */
.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: var(--pad); }

.skip-link {
  position: absolute; left: -999px; top: 0; z-index: 200;
  background: var(--yellow); color: var(--navy-900);
  padding: .7rem 1.1rem; font-weight: 700; border-radius: 0 0 var(--radius-sm) 0;
}
.skip-link:focus { left: 0; }

:where(a, button, input, textarea, select, summary):focus-visible {
  outline: 3px solid var(--yellow);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ----------------------------- Buttons ---------------------------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: .5rem;
  font-family: var(--ff-display);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  font-size: .95rem;
  padding: .85rem 1.5rem;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform .12s ease, background-color .15s ease, color .15s ease, border-color .15s ease;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-cta {
  background: var(--yellow);
  color: var(--navy-900);
  border-color: var(--yellow);
}
.btn-cta:hover { background: var(--yellow-deep); border-color: var(--yellow-deep); }

.btn-ghost {
  background: transparent;
  color: var(--paper);
  border-color: rgba(255,255,255,.35);
}
.btn-ghost:hover { border-color: var(--yellow); color: var(--yellow); }

.btn-block { width: 100%; }

/* ----------------------------- Header ----------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10, 22, 80, .92);
  backdrop-filter: saturate(140%) blur(8px);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem;
  max-width: var(--maxw); margin-inline: auto;
  padding: .6rem var(--pad);
}

.brand { display: inline-flex; align-items: center; gap: .65rem; text-decoration: none; }
.brand-chip {
  display: inline-grid; place-items: center;
  background: var(--white);
  border-radius: 10px;
  padding: 5px 7px;
  box-shadow: var(--shadow-sm);
}
.brand-logo { width: 40px; height: auto; }
.brand-name {
  font-family: var(--ff-display);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--white);
  font-size: 1.15rem;
}

.nav-menu {
  display: flex; align-items: center; gap: .35rem;
  list-style: none; margin: 0; padding: 0;
}
/* Plain text links only — excluded from .btn so the CTA button treatment
   (higher-specificity element+class rule was overriding .btn-cta and killing
   its dark text on the yellow fill, rendering the CTA invisible). */
.nav-menu a:not(.btn) {
  position: relative;
  display: inline-block;
  text-decoration: none;
  color: var(--paper);
  font-family: var(--ff-display);
  text-transform: uppercase;
  letter-spacing: .05em;
  font-weight: 500;
  font-size: .95rem;
  padding: .55rem .8rem;
  border-radius: 8px;
}
.nav-menu a:not(.btn):hover { color: var(--yellow); background: rgba(255,255,255,.06); }

/* Active page indicator (multi-page nav) */
.nav-menu a[aria-current="page"]:not(.btn) { color: var(--yellow); }
.nav-menu a[aria-current="page"]:not(.btn)::after {
  content: ""; position: absolute; left: .8rem; right: .8rem; bottom: .3rem;
  height: 2px; background: var(--yellow); border-radius: 2px;
}

.nav-cta { margin-left: .4rem; padding: .6rem 1.1rem; }

.nav-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  background: transparent; border: 0; cursor: pointer;
  padding: .5rem;
}
.nav-toggle-bar { width: 26px; height: 3px; background: var(--white); border-radius: 3px; transition: .2s; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle-bar:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ------------------------------ Hero ------------------------------ */
.hero {
  position: relative;
  color: var(--paper);
  background:
    radial-gradient(1200px 500px at 85% -10%, rgba(37,46,201,.55), transparent 60%),
    linear-gradient(180deg, var(--navy-800), var(--navy-900));
  overflow: hidden;
}
/* subtle hazard-stripe accent at the base */
.hero::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0; height: 6px;
  background: repeating-linear-gradient(-45deg, var(--yellow) 0 22px, var(--navy-900) 22px 44px);
  opacity: .9;
}
.hero-inner { padding-block: clamp(3.5rem, 9vw, 7rem); position: relative; z-index: 1; }

.hero-eyebrow {
  display: inline-block;
  font-family: var(--ff-display);
  text-transform: uppercase;
  letter-spacing: .16em;
  font-size: .82rem;
  color: var(--navy-900);
  background: var(--yellow);
  padding: .35rem .8rem;
  border-radius: 6px;
  margin: 0 0 1.3rem;
  font-weight: 600;
}
.hero-title {
  text-transform: uppercase;
  font-size: clamp(2.4rem, 6.5vw, 4.6rem);
  color: var(--white);
  margin-bottom: 1.2rem;
}
.hero-title-sub {
  display: block;
  font-size: clamp(1rem, 2.4vw, 1.7rem);
  color: var(--yellow);
  font-weight: 600;
  letter-spacing: .02em;
  margin-top: .5rem;
}
.hero-lead {
  max-width: 62ch;
  font-size: clamp(1.05rem, 1rem + .5vw, 1.3rem);
  color: var(--paper);
  margin: 0 0 2rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; margin-bottom: 2.6rem; }

.hero-stats {
  display: flex; flex-wrap: wrap; gap: 2.4rem;
  list-style: none; margin: 0; padding: 1.6rem 0 0;
  border-top: 1px solid rgba(255,255,255,.12);
}
.hero-stats li { display: flex; flex-direction: column; }
.stat-num {
  font-family: var(--ff-display); font-weight: 700;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  color: var(--yellow); line-height: 1;
}
.stat-label { font-size: .85rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-top: .35rem; }

/* ------------------------------ Bands ----------------------------- */
.section { padding-block: clamp(3rem, 8vw, 6rem); }
.band-light { background: var(--light); color: var(--ink); }
.band-dark  { background: var(--navy-800); color: var(--paper); }
.band-accent{ background: var(--blue); color: var(--white); }

.section-head {
  display: flex; align-items: baseline; gap: 1rem;
  margin-bottom: 1.8rem;
}
.section-num {
  font-family: var(--ff-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 6vw, 3.4rem);
  line-height: 1;
  color: var(--blue);
  -webkit-text-stroke: 0;
}
.band-dark .section-num, .band-accent .section-num { color: var(--yellow); }
.section-head h2 {
  text-transform: uppercase;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  position: relative;
  padding-bottom: .5rem;
}
.section-head h2::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 56px; height: 4px; background: var(--yellow); border-radius: 3px;
}

.section-intro {
  max-width: 60ch;
  font-size: 1.1rem;
  margin: 0 0 2rem;
}
.band-dark .section-intro { color: var(--muted); }

/* Prose */
.prose { max-width: 68ch; }
.prose .lead { font-size: clamp(1.15rem, 1rem + .6vw, 1.45rem); font-weight: 500; color: var(--ink); margin: 0 0 1.1rem; }
.prose p { margin: 0 0 1.1rem; color: var(--ink-soft); }

/* ---------------------------- Services ---------------------------- */
.services-grid {
  display: grid; gap: 1.1rem;
  grid-template-columns: 1fr;
}
.service-card {
  background: var(--navy-900);
  border: 1px solid var(--navy-700);
  border-radius: var(--radius);
  padding: 1.6rem 1.5rem;
  position: relative;
  overflow: hidden;
  transition: transform .15s ease, border-color .15s ease;
}
.service-card::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--yellow);
  transform: scaleY(0); transform-origin: top; transition: transform .2s ease;
}
.service-card:hover { transform: translateY(-4px); border-color: var(--blue); }
.service-card:hover::before { transform: scaleY(1); }
.service-card h3 {
  text-transform: uppercase;
  font-size: 1.3rem;
  color: var(--yellow);
  margin-bottom: .7rem;
  letter-spacing: .03em;
}
.service-card p { margin: 0; color: var(--paper); }

/* ------------------------------- FAQ ------------------------------ */
.faq-list { display: grid; gap: .8rem; max-width: 860px; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--light-alt);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 1.05rem 1.3rem;
  font-family: var(--ff-display);
  font-weight: 600;
  font-size: 1.12rem;
  color: var(--ink);
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--ff-display);
  font-size: 1.6rem;
  line-height: 1;
  color: var(--blue);
  transition: transform .2s ease;
}
.faq-item[open] summary::after { content: "\2013"; }
.faq-answer { padding: 0 1.3rem 1.15rem; }
.faq-answer p { margin: 0; color: var(--ink-soft); }

/* ----------------------------- Contact ---------------------------- */
.section-head-accent h2::after { background: var(--yellow); }
.band-accent .section-intro { color: rgba(255,255,255,.9); }

.contact-grid {
  display: grid; gap: 2rem;
  grid-template-columns: 1fr;
}
.contact-info h3 {
  text-transform: uppercase; font-size: 1.3rem; color: var(--yellow);
  margin-bottom: .6rem;
}
.contact-info address {
  font-style: normal; color: var(--white); font-size: 1.1rem; line-height: 1.8;
}

.enquiry-form {
  background: var(--white);
  border-radius: var(--radius);
  padding: clamp(1.3rem, 3vw, 2rem);
  box-shadow: var(--shadow);
  color: var(--ink);
}
.field { margin-bottom: 1rem; }
.field-row { display: grid; grid-template-columns: 1fr; gap: 0 1rem; }
.field label {
  display: block; font-weight: 600; font-size: .92rem;
  margin-bottom: .35rem; color: var(--ink);
}
.req { color: var(--blue); }
.field input, .field select, .field textarea {
  width: 100%;
  font: inherit;
  color: var(--ink);
  background: var(--light);
  border: 1.5px solid var(--light-alt);
  border-radius: var(--radius-sm);
  padding: .7rem .85rem;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 4px var(--ring);
}
.field textarea { resize: vertical; min-height: 120px; }
.enquiry-form .btn-block { margin-top: .4rem; }
.form-note { margin: .9rem 0 0; font-size: .95rem; font-weight: 600; min-height: 1.2em; }
.form-note.ok { color: #0a7d3c; }
.form-note.err { color: #c0341d; }

/* ------------------------------ Footer ---------------------------- */
.site-footer { background: var(--navy-900); color: var(--paper); }
.footer-grid {
  display: grid; grid-template-columns: 1fr; gap: 2rem;
  padding-block: clamp(2.5rem, 6vw, 4rem);
}
.footer-brand .brand-chip { margin-bottom: 1rem; }
.footer-brand .brand-logo { width: 54px; }
.footer-tagline { color: var(--muted); max-width: 34ch; margin: 0; }
.footer-col h4 {
  font-family: var(--ff-display); text-transform: uppercase; letter-spacing: .08em;
  color: var(--yellow); font-size: 1rem; margin-bottom: .9rem;
}
.footer-col ul { list-style: none; margin: 0; padding: 0; display: grid; gap: .5rem; }
.footer-col a { text-decoration: none; color: var(--paper); }
.footer-col a:hover { color: var(--yellow); }
.footer-col address { font-style: normal; color: var(--muted); line-height: 1.8; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,.1); }
.footer-bottom .wrap { padding-block: 1.2rem; }
.footer-bottom p { margin: 0; color: var(--muted); font-size: .9rem; }

/* =========================== Responsive =========================== */
@media (min-width: 620px) {
  .field-row { grid-template-columns: 1fr 1fr; }
}
@media (min-width: 760px) {
  .services-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: .85fr 1.15fr; align-items: start; }
  .footer-grid { grid-template-columns: 1.4fr 1fr 1.4fr; }
}

/* Mobile nav */
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: absolute; left: 0; right: 0; top: 100%;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--navy-800);
    border-bottom: 1px solid rgba(255,255,255,.1);
    padding: .6rem var(--pad) 1.2rem;
    box-shadow: var(--shadow);
    display: none;
  }
  .nav-menu.open { display: flex; }
  .nav-menu a:not(.btn) { padding: .85rem .4rem; border-radius: 8px; }
  .nav-menu a[aria-current="page"]:not(.btn)::after { left: .4rem; right: auto; width: 26px; }
  /* CTA stays a full-width filled button in the mobile dropdown */
  .nav-cta { margin: .8rem 0 .2rem; width: 100%; }
}

/* ====================== Inner page headers ======================= */
.page-hero {
  position: relative;
  background:
    radial-gradient(1100px 460px at 88% -20%, rgba(37,46,201,.5), transparent 60%),
    linear-gradient(180deg, var(--navy-800), var(--navy-900));
  color: var(--paper);
  padding-block: clamp(2.6rem, 7vw, 4.6rem);
  overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 5px;
  background: repeating-linear-gradient(-45deg, var(--yellow) 0 20px, var(--navy-900) 20px 40px);
  opacity: .85;
}
.page-hero .section-head { margin-bottom: .4rem; align-items: baseline; }
.page-hero .section-num { color: var(--yellow); }
.page-hero h1 {
  text-transform: uppercase;
  font-size: clamp(2rem, 5vw, 3.2rem);
  color: var(--white);
  position: relative;
  padding-bottom: .5rem;
}
.page-hero h1::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 56px; height: 4px; background: var(--yellow); border-radius: 3px;
}
.page-intro { max-width: 62ch; color: var(--muted); font-size: 1.12rem; margin: 1rem 0 0; }

/* ====================== Homepage teasers ========================= */
a.service-card { text-decoration: none; color: inherit; display: block; }
.card-more {
  display: inline-flex; align-items: center; gap: .35rem;
  margin-top: 1rem;
  color: var(--yellow);
  font-family: var(--ff-display); text-transform: uppercase;
  letter-spacing: .05em; font-size: .88rem; font-weight: 600;
}
a.service-card:hover .card-more { text-decoration: underline; }

.about-teaser { max-width: 66ch; }
.about-teaser .lead { font-size: clamp(1.15rem, 1rem + .6vw, 1.4rem); color: var(--paper); margin: 0 0 1.3rem; }

/* ========================= CTA band ============================= */
.cta-band { text-align: center; }
.cta-band h2 {
  text-transform: uppercase; color: var(--white);
  font-size: clamp(1.7rem, 4vw, 2.6rem); margin-bottom: .8rem;
}
.cta-band p { color: rgba(255,255,255,.9); max-width: 52ch; margin: 0 auto 1.8rem; font-size: 1.1rem; }

/* ====================== Splash / intro screen ==================== */
/* Markup + activation script live in index.html ONLY. Hidden by default so
   inner pages, no-JS loads, and crawlers never see it; index's inline script
   adds .is-active on a first visit per session when motion is allowed. */
.splash {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--navy-900);
  display: none; place-items: center;
}
.splash.is-active { display: grid; }
.splash.is-hiding { opacity: 0; transition: opacity .3s ease; }
.splash.is-done { display: none !important; }
.splash-mark { width: min(44vw, 200px); height: auto; }
.splash-mark text { font-family: var(--ff-display); font-weight: 700; text-transform: uppercase; }
.splash-base { fill: rgba(255,255,255,.12); }
.splash-fill { fill: var(--yellow); clip-path: inset(100% 0 0 0); }
.splash.is-active .splash-fill { animation: lsFill .9s cubic-bezier(.4,0,.2,1) forwards; }
@keyframes lsFill { to { clip-path: inset(0 0 0 0); } }
@media (prefers-reduced-motion: reduce) {
  .splash { display: none !important; }
}