/* Expertest Consultancy Limited — site styles */
:root {
  --navy-900: #0b1f33;
  --navy-800: #102a43;
  --navy-700: #1b3a5c;
  --blue-600: #1d5fa8;
  --blue-500: #2b74c6;
  --blue-50:  #eef4fb;
  --ink:      #1f2933;
  --slate:    #52606d;
  --muted:    #7b8794;
  --line:     #e4e7eb;
  --bg:       #ffffff;
  --bg-alt:   #f5f7fa;
  --success:  #2f7d4f;
  --error:    #b3261e;
  --radius:   8px;
  --shadow:   0 1px 2px rgba(16,42,67,.06), 0 8px 24px rgba(16,42,67,.06);
  --max:      1160px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--blue-600); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { color: var(--navy-800); line-height: 1.2; margin: 0 0 .6em; font-weight: 700; letter-spacing: -.01em; }
h1 { font-size: clamp(2.1rem, 4.5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
h3 { font-size: 1.2rem; }
p  { margin: 0 0 1em; }
ul { padding-left: 1.2em; }

.container { width: 100%; max-width: var(--max); margin: 0 auto; padding: 0 20px; }
.section { padding: 88px 0; }
.section--alt { background: var(--bg-alt); }
.section--tight { padding: 56px 0; }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 600; letter-spacing: .12em;
  text-transform: uppercase; color: var(--blue-600); margin-bottom: .8rem;
}
.lead { font-size: 1.15rem; color: var(--slate); max-width: 680px; }
.section-head { max-width: 720px; margin-bottom: 48px; }
.section-head--center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head--center .lead { margin: 0 auto; }
.skip-link { position: absolute; left: -999px; top: 0; background: #fff; padding: 8px 12px; z-index: 100; }
.skip-link:focus { left: 8px; top: 8px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: .5em; justify-content: center;
  padding: 13px 24px; border-radius: var(--radius); font-weight: 600; font-size: 1rem;
  border: 2px solid transparent; cursor: pointer; transition: background .2s, color .2s, border-color .2s;
  font-family: inherit;
}
.btn:hover { text-decoration: none; }
.btn--primary { background: var(--blue-600); color: #fff; }
.btn--primary:hover { background: var(--navy-700); }
.btn--outline { border-color: rgba(255,255,255,.55); color: #fff; }
.btn--outline:hover { background: #fff; color: var(--navy-800); }
.btn--ghost { border-color: var(--blue-600); color: var(--blue-600); }
.btn--ghost:hover { background: var(--blue-600); color: #fff; }
:focus-visible { outline: 3px solid var(--blue-500); outline-offset: 2px; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50; background: rgba(255,255,255,.97);
  border-bottom: 1px solid var(--line); backdrop-filter: blur(6px);
}
.nav { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.brand { display: flex; align-items: center; gap: 12px; color: var(--ink); }
.brand:hover { text-decoration: none; }
.brand img { height: 46px; width: auto; }
.brand-text { display: flex; flex-direction: column; line-height: 1.1; }
.brand-name { font-weight: 800; font-size: 1.1rem; letter-spacing: .04em; color: #3d3d3d; }
.brand-sub { font-size: .7rem; letter-spacing: .22em; text-transform: uppercase; color: var(--muted); }
.nav-links { display: flex; align-items: center; gap: 6px; list-style: none; margin: 0; padding: 0; }
.nav-links a { color: var(--ink); font-weight: 500; padding: 8px 14px; border-radius: 6px; font-size: .97rem; }
.nav-links a:hover { background: var(--bg-alt); text-decoration: none; }
.nav-links a[aria-current="page"]:not(.btn) { color: var(--blue-600); }
.nav-links .btn[aria-current="page"] { background: var(--navy-800); color: #fff; }
.nav-links .btn { background: var(--navy-800); color: #fff; margin-left: 8px; padding: 10px 18px; }
.nav-links .btn:hover { background: var(--blue-600); color: #fff; }
.nav-toggle {
  display: none; background: none; border: 0; padding: 10px; cursor: pointer; color: var(--navy-800);
}
.nav-toggle svg { width: 26px; height: 26px; }

/* Hero */
.hero {
  position: relative; color: #fff; overflow: hidden;
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-800) 55%, var(--navy-700) 100%);
}
.hero::after {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.04) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(90deg, transparent, #000 70%);
}
.hero .container { position: relative; z-index: 1; }
.hero h1, .hero h2 { color: #fff; }
.hero .eyebrow { color: #8fbdf0; }
.hero-home { padding: 110px 0 120px; }
.hero-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 56px; align-items: center; }
.hero p.lead { color: #c9d6e3; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.hero-panel {
  background: rgba(255,255,255,.06); border: 1px solid rgba(255,255,255,.14);
  border-radius: 12px; padding: 28px;
}
.hero-panel h3 { color: #fff; font-size: 1rem; margin-bottom: 18px; }
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { position: relative; padding-left: 32px; margin-bottom: 14px; color: #dbe5ee; }
.check-list li::before {
  content: ""; position: absolute; left: 0; top: 4px; width: 20px; height: 20px; border-radius: 50%;
  background: var(--blue-500) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5 12l5 5L20 7'/%3E%3C/svg%3E") center/12px no-repeat;
}
.page-hero { padding: 72px 0 64px; }
.page-hero .lead { color: #c9d6e3; }
.breadcrumb { font-size: .85rem; color: #9fb3c8; margin-bottom: 12px; }
.breadcrumb a { color: #9fb3c8; }

/* Stats strip */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); border-bottom: 1px solid var(--line); }
.stat { padding: 32px 20px; text-align: center; border-right: 1px solid var(--line); }
.stat:last-child { border-right: 0; }
.stat strong { display: block; font-size: 1.9rem; color: var(--navy-800); line-height: 1.1; }
.stat span { font-size: .9rem; color: var(--slate); }

/* Cards */
.grid { display: grid; gap: 24px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: 10px; padding: 32px;
  transition: box-shadow .2s, transform .2s, border-color .2s;
}
.card:hover { box-shadow: var(--shadow); border-color: #d3dae2; }
a.card { color: inherit; display: block; }
a.card:hover { text-decoration: none; transform: translateY(-2px); }
.card p { color: var(--slate); }
.icon {
  width: 52px; height: 52px; border-radius: 10px; background: var(--blue-50); color: var(--blue-600);
  display: grid; place-items: center; margin-bottom: 20px;
}
.icon svg { width: 26px; height: 26px; }
.card-link { font-weight: 600; font-size: .95rem; color: var(--blue-600); }

/* Split */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.panel {
  background: var(--navy-800); color: #dbe5ee; border-radius: 12px; padding: 40px;
}
.panel h3 { color: #fff; }

/* Process steps */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.step { position: relative; padding-top: 56px; }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  position: absolute; top: 0; left: 0; font-size: 2rem; font-weight: 800; color: var(--blue-600);
}
.step p { color: var(--slate); font-size: .96rem; }

/* Services detail */
.service {
  display: grid; grid-template-columns: 300px 1fr; gap: 48px; padding: 56px 0;
  border-bottom: 1px solid var(--line); scroll-margin-top: 90px;
}
.service:last-child { border-bottom: 0; }
.service h2 { font-size: 1.6rem; }
.service ul { columns: 2; column-gap: 32px; color: var(--slate); margin: 0 0 1em; }
.service li { margin-bottom: 8px; break-inside: avoid; }
.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.tag { font-size: .8rem; background: var(--bg-alt); border: 1px solid var(--line); padding: 4px 10px; border-radius: 999px; color: var(--slate); }

/* References */
.case { display: flex; flex-direction: column; }
.case .sector { font-size: .78rem; font-weight: 600; text-transform: uppercase; letter-spacing: .1em; color: var(--blue-600); }
.case dl { margin: 16px 0 0; font-size: .95rem; }
.case dt { font-weight: 600; color: var(--navy-800); }
.case dd { margin: 0 0 12px; color: var(--slate); }
.quote {
  border-left: 4px solid var(--blue-600); background: #fff; padding: 28px 32px; border-radius: 0 10px 10px 0;
  box-shadow: var(--shadow);
}
.quote blockquote { margin: 0 0 16px; font-size: 1.1rem; color: var(--ink); font-style: italic; }
.quote cite { font-style: normal; font-weight: 600; color: var(--navy-800); }
.quote cite span { display: block; font-weight: 400; color: var(--muted); font-size: .9rem; }
.logos { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; }
.logo-slot {
  height: 72px; border: 1px dashed #cbd2d9; border-radius: 8px; display: grid; place-items: center;
  color: var(--muted); font-size: .8rem; background: #fff;
}
.placeholder-note {
  background: #fff8e6; border: 1px solid #f1d9a0; color: #7a5a12; border-radius: 8px;
  padding: 12px 16px; font-size: .9rem; margin-bottom: 32px;
}

/* CTA band */
.cta { background: var(--navy-800); color: #c9d6e3; padding: 72px 0; }
.cta .container { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; }
.cta h2 { color: #fff; margin-bottom: .3em; }
.cta p { margin: 0; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1.4fr 1fr; gap: 48px; align-items: start; }
.form { display: grid; gap: 20px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.field label { display: block; font-weight: 600; font-size: .92rem; margin-bottom: 6px; color: var(--navy-800); }
.field .req { color: var(--error); }
.field input, .field select, .field textarea {
  width: 100%; font: inherit; font-size: 1rem; color: var(--ink); background: #fff;
  border: 1px solid #cbd2d9; border-radius: 6px; padding: 12px 14px; transition: border-color .15s, box-shadow .15s;
}
.field textarea { min-height: 150px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--blue-500); box-shadow: 0 0 0 3px rgba(43,116,198,.18);
}
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: var(--error); }
.field .error-msg { display: none; color: var(--error); font-size: .85rem; margin-top: 4px; }
.field.invalid .error-msg { display: block; }
.consent { display: flex; gap: 10px; align-items: flex-start; font-size: .9rem; color: var(--slate); }
.consent input { margin-top: 5px; width: 18px; height: 18px; flex: none; }
.hidden { position: absolute !important; left: -9999px !important; }
.form-status { display: none; padding: 14px 16px; border-radius: 6px; font-size: .95rem; }
.form-status.success { display: block; background: #e9f5ee; color: var(--success); border: 1px solid #b9dcc6; }
.form-status.error { display: block; background: #fbeceb; color: var(--error); border: 1px solid #efc2bf; }
.info-card { background: var(--bg-alt); border-radius: 10px; padding: 32px; }
.info-item { display: flex; gap: 16px; margin-bottom: 24px; }
.info-item:last-child { margin-bottom: 0; }
.info-item .icon { margin: 0; width: 44px; height: 44px; flex: none; background: #fff; }
.info-item .icon svg { width: 22px; height: 22px; }
.info-item h4 { margin: 0 0 2px; font-size: .95rem; }
.info-item p { margin: 0; color: var(--slate); }

/* Footer */
.site-footer { background: var(--navy-900); color: #9fb3c8; padding: 64px 0 28px; font-size: .95rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; }
.site-footer h4 { color: #fff; font-size: .85rem; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 16px; }
.site-footer ul { list-style: none; padding: 0; margin: 0; }
.site-footer li { margin-bottom: 10px; }
.site-footer a { color: #c9d6e3; }
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand img { height: 44px; width: auto; }
.footer-brand span { color: #fff; font-weight: 700; letter-spacing: .04em; line-height: 1.2; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1); margin-top: 48px; padding-top: 24px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: .85rem;
}

/* Responsive */
@media (max-width: 980px) {
  .hero-grid, .split, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .grid-3, .grid-4, .steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .service { grid-template-columns: 1fr; gap: 16px; }
  .logos { grid-template-columns: repeat(3, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(2) { border-right: 0; }
  .stat:nth-child(-n+2) { border-bottom: 1px solid var(--line); }
}
@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .nav-links {
    display: none; position: absolute; top: 76px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    background: #fff; border-bottom: 1px solid var(--line); padding: 12px 20px 20px; gap: 2px;
    box-shadow: 0 12px 24px rgba(16,42,67,.08);
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 12px 8px; }
  .nav-links .btn { margin: 8px 0 0; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .section { padding: 64px 0; }
  .hero-home { padding: 72px 0 80px; }
  .grid-2, .grid-3, .grid-4, .steps, .form-row, .footer-grid { grid-template-columns: 1fr; }
  .service ul { columns: 1; }
  .logos { grid-template-columns: repeat(2, 1fr); }
  .brand-sub { display: none; }
  .stat { padding: 24px 12px; }
  .stat strong { font-size: 1.35rem; }
  .card, .panel, .info-card { padding: 24px; }
  .hero-actions .btn { width: 100%; }
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}