/* =========================================================
   Black Pearl Sdn. Bhd. — stylesheet
   Corporate, typography-led. No images, no icons.
   Theme: deep navy + steel, copper accent. Sharp corners,
   thin rules, numbered sections.
   ========================================================= */

:root {
  --navy-900: #101b25;
  --navy-800: #16242f;
  --steel-600: #3f6179;
  --steel-500: #5a7f99;
  --copper: #b86a1c;
  --paper: #ffffff;
  --tint: #f3f6f8;
  --ink: #18232d;
  --muted: #566673;
  --line: #d9e1e6;
  --radius: 2px;
  --maxw: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3 {
  font-family: "Fraunces", Georgia, "Times New Roman", serif;
  font-weight: 500;
  line-height: 1.2;
  color: var(--navy-900);
  margin: 0 0 0.5em;
}

p { margin: 0 0 1rem; }

a { color: var(--steel-600); text-decoration: none; }
a:hover { color: var(--navy-900); text-decoration: underline; }

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--copper);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--copper);
  margin: 0 0 1rem;
  padding-top: 0.7rem;
  border-top: 2px solid var(--copper);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.02em;
  cursor: pointer;
  border: 1px solid transparent;
  transition: background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary { background: var(--navy-900); color: var(--paper); }
.btn-primary:hover { background: var(--steel-600); color: var(--paper); }
.btn-outline { background: transparent; color: var(--navy-900); border-color: var(--navy-900); }
.btn-outline:hover { background: var(--navy-900); color: var(--paper); }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.brand {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--navy-900);
  letter-spacing: 0.01em;
}
.brand:hover { text-decoration: none; color: var(--navy-900); }

.nav ul {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2rem;
  margin: 0;
  padding: 0;
}
.nav a { font-size: 0.92rem; font-weight: 500; color: var(--ink); }
.nav a:hover { color: var(--copper); text-decoration: none; }
.nav .nav-cta {
  padding: 0.5rem 1.2rem;
  border: 1px solid var(--navy-900);
  border-radius: var(--radius);
}
.nav .nav-cta:hover { background: var(--navy-900); color: var(--paper); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--navy-900);
}

/* ---------- Hero ---------- */
.hero {
  background: var(--tint);
  border-bottom: 1px solid var(--line);
  padding: 80px 0 88px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 72px;
  align-items: start;
}
.hero h1 {
  font-size: clamp(2rem, 4vw, 3.1rem);
  max-width: 20ch;
  margin-bottom: 0.6em;
}
.lead { font-size: 1.1rem; color: var(--muted); max-width: 52ch; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 1.8rem; }

.glance {
  background: var(--paper);
  border: 1px solid var(--line);
  border-top: 3px solid var(--navy-900);
  padding: 1.6rem 1.7rem;
}
.glance-title {
  font-family: "Inter", sans-serif;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 1rem;
}
.glance-list { margin: 0; }
.glance-list > div { padding: 0.9rem 0; border-top: 1px solid var(--line); }
.glance-list dt {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--steel-600);
  margin-bottom: 0.25rem;
}
.glance-list dd { margin: 0; font-size: 0.95rem; }

/* ---------- Sections ---------- */
.section { padding: 88px 0; }
.section-tint { background: var(--tint); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-dark { background: var(--navy-900); color: #d3dde4; }
.section-dark h2,
.section-dark h3 { color: var(--paper); }
.section-dark .label { color: #e0a060; border-top-color: #e0a060; }

.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); margin-bottom: 0.3em; }
.section-sub { color: var(--muted); font-size: 1.02rem; }

/* ---------- About (split) ---------- */
.split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 72px;
  align-items: start;
}
.split-head h2 { font-size: clamp(1.7rem, 3vw, 2.3rem); }
.prose p { color: var(--muted); font-size: 1.05rem; }

/* ---------- Services (numbered table) ---------- */
.service-table { border-top: 1px solid var(--navy-900); }
.service {
  display: grid;
  grid-template-columns: 80px 1.1fr 1fr;
  gap: 32px;
  padding: 2rem 0;
  border-bottom: 1px solid var(--line);
  align-items: start;
}
.service-num {
  font-family: "Fraunces", Georgia, serif;
  font-size: 1.6rem;
  color: var(--copper);
  line-height: 1.2;
}
.service-main h3 { font-size: 1.35rem; margin-bottom: 0.4em; }
.service-main p { color: var(--muted); margin: 0; }
.service-points { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.55rem; }
.service-points li {
  position: relative;
  padding-left: 1.2rem;
  font-size: 0.95rem;
}
.service-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.65em;
  width: 8px;
  height: 2px;
  background: var(--copper);
}

/* ---------- Clients ---------- */
.two-col {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 48px;
}
.col-block { border-top: 1px solid var(--navy-900); padding-top: 1.4rem; }
.col-block h3 { font-size: 1.3rem; }
.col-block > p { color: var(--muted); }
.rule-list { list-style: none; margin: 1.2rem 0 0; padding: 0; }
.rule-list li {
  padding: 0.75rem 0;
  border-top: 1px solid var(--line);
  font-size: 0.97rem;
}
.rule-list li:last-child { border-bottom: 1px solid var(--line); }

/* ---------- Approach ---------- */
.steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.steps li { border-top: 1px solid rgba(255, 255, 255, 0.28); padding-top: 1.2rem; }
.step-num {
  display: block;
  font-family: "Fraunces", Georgia, serif;
  font-size: 2rem;
  line-height: 1;
  color: #e0a060;
  margin-bottom: 0.8rem;
}
.steps h3 { font-size: 1.15rem; margin-bottom: 0.35em; }
.steps p { margin: 0; font-size: 0.95rem; color: #b9c7d1; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 72px;
  align-items: start;
}
.contact-list { margin: 0; border-top: 1px solid var(--navy-900); }
.contact-list > div { padding: 1.1rem 0; border-bottom: 1px solid var(--line); }
.contact-list dt {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel-600);
  margin-bottom: 0.3rem;
}
.contact-list dd { margin: 0; }

.contact-form {
  background: var(--tint);
  border: 1px solid var(--line);
  padding: 2rem;
}
.field { margin-bottom: 1.2rem; }
.field label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
}
.field input,
.field textarea {
  width: 100%;
  padding: 0.75rem 0.9rem;
  border: 1px solid #c3cfd6;
  border-radius: var(--radius);
  font: inherit;
  color: var(--ink);
  background: var(--paper);
}
.field input:focus,
.field textarea:focus { border-color: var(--steel-600); }
.form-note { font-size: 0.9rem; margin: 0.8rem 0 0; min-height: 1.2em; }
.form-note.ok { color: var(--steel-600); }
.form-note.err { color: #b3261e; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--navy-900);
  color: #9fb0bc;
  padding: 28px 0;
  font-size: 0.88rem;
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.footer-inner strong { color: var(--paper); font-weight: 600; }

/* ---------- Responsive ---------- */
@media (max-width: 960px) {
  .hero-grid,
  .split,
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero { padding: 56px 0 64px; }
  .section { padding: 64px 0; }
  .service { grid-template-columns: 56px 1fr; }
  .service-points { grid-column: 2; }
  .two-col { grid-template-columns: 1fr; gap: 40px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .nav-toggle { display: flex; }
  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .nav.open { max-height: 420px; }
  .nav ul {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.5rem 24px 1.2rem;
  }
  .nav li { border-bottom: 1px solid var(--line); }
  .nav li:last-child { border-bottom: 0; padding-top: 0.8rem; }
  .nav a { display: block; padding: 0.85rem 0; }
  .nav .nav-cta { text-align: center; padding: 0.75rem 1rem; }
}

@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  .service { grid-template-columns: 1fr; gap: 12px; }
  .service-points { grid-column: auto; }
  .contact-form { padding: 1.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}