/* OS Consultant — redesign v3 (light theme).
   Self-contained: no external fonts, images, scripts or tracking.
   Mobile-first, responsive, system font stacks only.
   Structure inspired by leading consultancy landing pages; all
   content, numbers and claims are OS Consultant's own. */

:root {
  --primary: #0d133f;
  --primary-2: #1b2456;
  --primary-dark: #080d2a;
  --accent: #e86a33;
  --accent-2: #f07f4a;
  --accent-soft: #fdf0e9;
  --bg: #faf8f4;
  --card: #ffffff;
  --text: #1f2333;
  --muted: #5c6070;
  --line: #e7e0d4;
  --wa: #25d366;
  --wa-dark: #1da851;
  --radius: 18px;
  --shadow: 0 8px 30px rgba(13, 19, 63, 0.08);
  --shadow-lg: 0 18px 44px rgba(13, 19, 63, 0.14);
  --max: 1120px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 17px;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  overflow-x: hidden;
}

h1, h2, h3 {
  font-family: -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  line-height: 1.25;
  color: var(--primary);
  margin: 0 0 0.6rem 0;
  font-weight: 800;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2rem, 5vw, 3.2rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
h3 { font-size: 1.25rem; }

p { margin: 0 0 1rem 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: var(--primary-2); }
a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, summary:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.container { max-width: var(--max); margin: 0 auto; padding: 0 1.25rem; width: 100%; }

.skip-link {
  position: absolute; left: -9999px; top: 0;
  background: var(--accent); color: #fff;
  padding: 0.5rem 1rem; font-weight: 700; z-index: 100;
}
.skip-link:focus { left: 1rem; top: 1rem; }

/* ---------- Top bar ---------- */
.topbar { background: var(--primary-dark); color: #d5d9e8; font-size: 0.92rem; }
.topbar-inner {
  display: flex; flex-wrap: wrap; gap: 0.5rem 1.5rem;
  align-items: center; justify-content: space-between;
  padding-top: 0.5rem; padding-bottom: 0.5rem;
}
.topbar a { color: #fff; text-decoration: none; font-weight: 700; }
.topbar a:hover { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; }
.topbar .wa-link { color: #9db8ff; }

/* ---------- Header (two-row: brand row + nav row) ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: #fff; border-bottom: 1px solid var(--line);
  box-shadow: 0 2px 12px rgba(13, 19, 63, 0.06);
}
.header-top {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1rem; flex-wrap: wrap; padding-top: 0.8rem; padding-bottom: 0.8rem;
}
.header-actions { display: flex; gap: 0.7rem; align-items: center; flex-wrap: wrap; }
.header-actions .wa-top { font-weight: 700; color: var(--primary); text-decoration: none; }
.brand { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; }
.brand-logo { height: 56px; width: auto; display: block; }
.brand-name { font-weight: 800; font-size: 1.35rem; color: var(--primary); line-height: 1.1; }
.brand-tag { display: block; font-size: 0.68rem; letter-spacing: 0.28em; color: var(--accent); font-weight: 800; }

.main-nav { background: var(--primary); }
.nav-inner { display: flex; flex-wrap: wrap; gap: 0.25rem 1.5rem; align-items: center; padding-top: 0.6rem; padding-bottom: 0.6rem; }
.main-nav a { text-decoration: none; font-weight: 600; font-size: 0.95rem; color: #fff; padding: 0.25rem 0; }
.main-nav a:hover { color: #fff; text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 4px; }
.main-nav .nav-cta { color: #fff; }
.main-nav .nav-cta:hover { color: #fff; text-decoration: none; }
.nav-pk { margin-left: auto; display: inline-flex; align-items: center; font-weight: 700; color: #fff; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block; text-decoration: none; font-weight: 700;
  padding: 0.8rem 1.5rem; border-radius: 999px; font-size: 1rem; line-height: 1.3;
  border: 2px solid transparent; text-align: center; cursor: pointer;
}
.btn-accent { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-2); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-2); }
.btn-outline-dark { border-color: var(--primary); color: var(--primary); }
.btn-outline-dark:hover { background: var(--accent-soft); }
.btn-wa { background: var(--wa); color: #fff; }
.btn-wa:hover { background: var(--wa-dark); }
.btn-small { padding: 0.55rem 1.15rem; font-size: 0.92rem; }
.btn-large { padding: 1rem 2rem; font-size: 1.08rem; }

/* ---------- Hero (light, two-column with callback card) ---------- */
.hero {
  background:
    radial-gradient(600px 300px at 90% 0%, rgba(232, 106, 51, 0.12), rgba(232, 106, 51, 0) 70%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
  color: var(--text); padding: clamp(2.5rem, 6vw, 4.5rem) 0;
  border-bottom: 1px solid var(--line);
}
.hero-grid { display: grid; grid-template-columns: 1.15fr 0.85fr; gap: 2.5rem; align-items: start; }
.hero h1 { color: var(--primary); max-width: 20ch; }
.hero .eyebrow {
  color: var(--accent); font-weight: 800; letter-spacing: 0.22em;
  text-transform: uppercase; font-size: 0.78rem; margin-bottom: 1rem;
}
.hero .lead { color: var(--muted); font-size: clamp(1.05rem, 2vw, 1.25rem); max-width: 58ch; }
.hero .gold-rule { width: 64px; height: 4px; background: var(--accent); border: 0; margin: 1.5rem 0; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 1.8rem; }
.hero-points { display: flex; flex-wrap: wrap; gap: 0.5rem 1.6rem; margin-top: 1.8rem; color: var(--primary); font-weight: 600; font-size: 0.98rem; }
.hero-points span { display: inline-flex; align-items: center; }
.hp-icon { width: 28px; height: 28px; border-radius: 8px; background: var(--ic); display: inline-flex; align-items: center; justify-content: center; margin-right: 0.45rem; flex-shrink: 0; }
.hp-icon svg { width: 17px; height: 17px; fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

/* Small hero (inner pages) */
.hero-small { padding: clamp(2.2rem, 5vw, 3.5rem) 0; }
.hero-small h1 { max-width: none; }

/* Callback card */
.callback-card {
  background: var(--card); border: 1px solid var(--line);
  border-top: 5px solid var(--accent); border-radius: var(--radius);
  padding: 1.8rem; box-shadow: var(--shadow-lg);
}
.callback-card h2 { font-size: 1.45rem; margin-bottom: 0.3rem; }
.callback-card .card-sub { color: var(--muted); font-size: 0.98rem; margin-bottom: 1.3rem; }

/* ---------- Trust strip ---------- */
.trust-strip { background: #fff; border-bottom: 1px solid var(--line); }
.trust-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 0.5rem 2rem; padding: 1.4rem 0;
}
.trust-item { display: flex; gap: 0.7rem; align-items: flex-start; font-weight: 600; color: var(--primary); font-size: 0.98rem; }
.trust-item .tick { color: var(--accent); font-weight: 900; }

/* ---------- Sections ---------- */
.section { padding: clamp(3rem, 6vw, 4.8rem) 0; scroll-margin-top: 150px; }
.section-alt { background: #fff; border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); }
.section-dark { background: var(--primary); color: #fff; }
.section-dark h2 { color: #fff; }
.section-dark .section-lead { color: #d5d9e8; }
.eyebrow {
  color: var(--accent); font-weight: 800; letter-spacing: 0.22em;
  text-transform: uppercase; font-size: 0.78rem; margin-bottom: 0.6rem;
}
.section-lead { color: var(--muted); font-size: 1.1rem; max-width: 66ch; }
.section-head { max-width: 720px; margin-bottom: 2.2rem; }

/* ---------- Cards ---------- */
.card-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.4rem;
}
.card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.6rem; box-shadow: var(--shadow);
  display: flex; flex-direction: column;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.card h3 { margin-bottom: 0.4rem; }
.card .tagline { color: var(--muted); font-style: italic; margin-bottom: 1rem; }
.dest-flag-img { width: 56px; height: auto; border-radius: 6px; box-shadow: 0 1px 4px rgba(0,0,0,0.15); flex-shrink: 0; }
.flag-inline { width: 32px; height: auto; border-radius: 3px; vertical-align: -3px; margin-right: 0.35rem; box-shadow: 0 0 0 1px rgba(0,0,0,0.08); }
.uni-list { margin-bottom: 1.4rem; }
.uni-list li { padding: 0.3rem 0 0.3rem 1.3rem; position: relative; }
.uni-list li::before {
  content: ""; position: absolute; left: 0; top: 0.72em;
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
}
.card .card-cta { margin-top: auto; }
.service-card p { color: var(--muted); margin-bottom: 0; }

/* ---------- Why choose checklist ---------- */
.check-list {
  display: grid; grid-template-columns: 1fr 1fr; gap: 1rem 2.5rem;
}
.check-list li { display: flex; gap: 0.8rem; align-items: flex-start; font-weight: 600; color: var(--primary); }
.why-icon { width: 48px; height: 48px; border-radius: 14px; background: var(--ic); display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.why-icon svg { width: 26px; height: 26px; fill: none; stroke: #fff; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.check-list p { color: var(--muted); font-weight: 400; margin: 0.2rem 0 0 0; }

/* ---------- Process ---------- */
.process-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.4rem;
}
.process-step { padding: 0.4rem 0; }
.process-num {
  font-size: 2.6rem; line-height: 1;
  color: var(--accent); font-weight: 800;
}
.process-step h3 { color: #fff; margin: 0.7rem 0 0.4rem 0; }
.process-step p { color: #d5d9e8; margin-bottom: 0; }

/* ---------- About ---------- */
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 2.5rem;
}
.about-grid p { color: var(--muted); }
.about-grid h2 { font-size: 1.6rem; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 780px; }
.faq-item {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.2rem 1.5rem;
  margin-bottom: 0.9rem; box-shadow: var(--shadow);
}
.faq-item summary { cursor: pointer; font-weight: 700; color: var(--primary); font-size: 1.05rem; }
.faq-item p { color: var(--muted); margin: 0.7rem 0 0 0; }

/* ---------- CTA band ---------- */
.cta-band {
  background:
    radial-gradient(500px 220px at 90% 0%, rgba(232, 106, 51, 0.25), rgba(232, 106, 51, 0) 70%),
    linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  color: #fff; border-radius: var(--radius);
  padding: 2.2rem; box-shadow: var(--shadow-lg);
}
.cta-band h2 { color: #fff; }
.cta-band p { color: #d5d9e8; max-width: 62ch; }
.cta-band .hero-actions { margin-top: 1.4rem; }

/* ---------- Testimonials ---------- */
.testi-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 1.4rem;
}
.testi {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.6rem; box-shadow: var(--shadow);
  margin: 0;
}
.testi blockquote { margin: 0 0 1rem 0; font-size: 1.08rem; line-height: 1.55; color: var(--primary); }
.testi blockquote::before { content: "\201C"; color: var(--accent); font-size: 1.8rem; line-height: 0; margin-right: 0.15rem; }
.testi figcaption { font-size: 0.95rem; }
.testi figcaption strong { color: var(--primary); }
.testi figcaption span { color: var(--muted); }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: 1.4rem; align-items: stretch;
}
.contact-card {
  background: var(--primary); color: #fff; border-radius: var(--radius);
  padding: 1.8rem;
}
.contact-card h3 { color: #fff; }
.contact-card address { font-style: normal; font-size: 1.12rem; line-height: 1.7; margin-bottom: 1.2rem; }
.contact-card a { color: #fff; }
.wa-number { font-size: 1.5rem; font-weight: 800; letter-spacing: 0.01em; }
.wa-number a { text-decoration: none; }
.contact-note { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 1.8rem; box-shadow: var(--shadow); }
.contact-note h3 { margin-bottom: 0.5rem; }
.contact-note p { color: var(--muted); margin-bottom: 0; }

/* ---------- Form ---------- */
.form-card {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 2rem; box-shadow: var(--shadow-lg);
  max-width: 780px;
}
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.1rem 1.4rem; }
.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field-full { grid-column: 1 / -1; }
.field label { font-weight: 700; color: var(--primary); font-size: 0.98rem; }
.field .hint { font-weight: 400; color: var(--muted); font-size: 0.88rem; }
.field input[type="text"], .field input[type="number"], .field select {
  font: inherit; font-size: 1rem; padding: 0.7rem 0.9rem;
  border: 1.5px solid var(--line); border-radius: 10px; color: var(--text);
  background: #fff; width: 100%;
}
.field input:focus, .field select:focus { border-color: var(--accent); }
.check-group { display: flex; flex-wrap: wrap; gap: 0.5rem 1.2rem; }
.check-group label { font-weight: 600; color: var(--text); display: flex; gap: 0.45rem; align-items: center; cursor: pointer; }
.check-group input { accent-color: var(--primary); width: 18px; height: 18px; }
.form-note { color: var(--muted); font-size: 0.95rem; }
.form-actions { margin-top: 1.6rem; display: flex; flex-wrap: wrap; gap: 0.9rem; align-items: center; }

/* ---------- Footer ---------- */
.site-footer { background: var(--primary-dark); color: #c9cede; padding: 2.6rem 0 2rem 0; }
.footer-cols { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 2rem; margin-bottom: 2rem; }
.site-footer h3 { color: #fff; font-size: 1.05rem; margin-bottom: 0.8rem; }
.site-footer a { color: #fff; text-decoration: none; }
.site-footer a:hover { text-decoration: underline; text-decoration-color: var(--accent); text-underline-offset: 3px; }
.site-footer li { padding: 0.2rem 0; }
.site-footer .foot-brand { font-size: 1.3rem; color: #fff; font-weight: 800; }
.site-footer p { margin: 0 0 0.6rem 0; font-size: 0.95rem; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.15); padding-top: 1.2rem; font-size: 0.9rem; }

/* ---------- Floating WhatsApp ---------- */
.wa-float {
  position: fixed; right: 1.1rem; bottom: 1.1rem; z-index: 90;
  width: 60px; height: 60px; border-radius: 50%;
  background: var(--wa); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.28);
  text-decoration: none;
}
.wa-float:hover { background: var(--wa-dark); }
.wa-float svg { width: 34px; height: 34px; fill: #fff; }

/* ---------- Destination rows ---------- */
.dest-list { display: flex; flex-direction: column; gap: 1rem; }
.dest-row {
  display: flex; gap: 1.2rem; align-items: center;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 1.2rem 1.5rem; box-shadow: var(--shadow);
}
.dest-row .dest-flag { font-size: 2rem; margin-bottom: 0; flex-shrink: 0; }
.dest-main { flex: 1; }
.dest-main h3 { margin-bottom: 0.15rem; }
.dest-main .tagline { color: var(--muted); font-style: italic; margin-bottom: 0.3rem; }
.dest-unis { color: var(--muted); font-size: 0.95rem; margin: 0; }

/* ---------- Service rows (numbered) ---------- */
.service-list { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; }
.service-row {
  display: flex; gap: 1rem; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.5rem; box-shadow: var(--shadow);
}
.service-num { font-size: 1.7rem; font-weight: 800; color: var(--accent); line-height: 1; flex-shrink: 0; }
.service-row p { color: var(--muted); margin-bottom: 0; }

/* ---------- Process timeline ---------- */
.timeline { border-left: 3px solid var(--accent); margin-left: 1.2rem; }
.timeline-step { position: relative; padding: 0 0 1.8rem 2.2rem; }
.timeline-step:last-child { padding-bottom: 0; }
.timeline-num {
  position: absolute; left: -1.35rem; top: 0;
  width: 2.5rem; height: 2.5rem; border-radius: 50%;
  background: var(--accent); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.05rem;
}
.timeline-step h3 { color: #fff; }
.timeline-step p { color: #d5d9e8; margin-bottom: 0; }

/* ---------- Testimonial rows ---------- */
.testi-list { display: flex; flex-direction: column; gap: 1rem; }
.testi-row {
  display: flex; gap: 1.2rem; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.4rem 1.6rem; box-shadow: var(--shadow); margin: 0;
}
.testi-avatar {
  width: 52px; height: 52px; border-radius: 50%; flex-shrink: 0;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.3rem;
}
.testi-row blockquote { margin: 0 0 0.5rem 0; font-size: 1.08rem; line-height: 1.55; color: var(--primary); }
.testi-row blockquote::before { content: "\201C"; color: var(--accent); font-size: 1.8rem; line-height: 0; margin-right: 0.15rem; }
.testi-row figcaption { font-size: 0.95rem; }
.testi-row figcaption strong { color: var(--primary); }
.testi-row figcaption span { color: var(--muted); }

/* ---------- Section heading accent rule ---------- */
.section-head h2::after {
  content: ""; display: block; width: 56px; height: 4px;
  background: var(--accent); margin-top: 0.8rem; border-radius: 2px;
}

/* ---------- Footer (CTA row + link row) ---------- */
.footer-cta {
  display: flex; justify-content: space-between; align-items: center;
  gap: 1.5rem; flex-wrap: wrap;
  padding-bottom: 1.8rem; margin-bottom: 1.8rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.15);
}
.footer-links { display: flex; gap: 2.5rem; flex-wrap: wrap; margin-bottom: 1.8rem; }

/* ---------- Apply page two-column layout ---------- */
.apply-layout { display: grid; grid-template-columns: 0.85fr 1.5fr; gap: 2rem; align-items: start; }
.apply-steps { padding: 0; }
.apply-steps li { padding: 0.7rem 0; border-bottom: 1px solid var(--line); font-weight: 600; color: var(--primary); }
.apply-steps li:last-child { border-bottom: 0; }
.apply-side-card { background: var(--primary); color: #fff; border-radius: var(--radius); padding: 1.5rem; margin-top: 1.5rem; }
.apply-side-card h3 { color: #fff; }
.apply-side-card a { color: #fff; }

.about-banner img { width: 100%; height: 340px; object-fit: cover; border-radius: var(--radius); display: block; }
.about-banner { margin-bottom: 2rem; }
.about-banner img { height: 300px; }

.uni-show { padding: 1.2rem 0 0; }
.uni-frame { position: relative; height: 300px; border-radius: var(--radius); overflow: hidden; }
.us-group { position: absolute; inset: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; opacity: 0; animation: usgroup 15s infinite; }
.us-cell { margin: 0; position: relative; overflow: hidden; border-radius: 10px; }
.us-cell:nth-child(1) { transform: rotate(-1.5deg); }
.us-cell:nth-child(2) { transform: rotate(1.2deg); }
.us-cell:nth-child(3) { transform: rotate(-0.8deg); }
.us-cell img { width: 100%; height: 100%; object-fit: cover; display: block; }
.us-cell figcaption { position: absolute; left: 8px; bottom: 8px; background: rgba(13,19,63,0.82); color: #fff; padding: 4px 10px; border-radius: 999px; font-size: 0.85rem; font-weight: 700; }
.us-group:nth-child(2) { animation-delay: 5s; }
.us-group:nth-child(3) { animation-delay: 10s; }
@keyframes usgroup { 0% { opacity: 0; } 3.3% { opacity: 1; } 30% { opacity: 1; } 33.3% { opacity: 0; } 100% { opacity: 0; } }
@media (prefers-reduced-motion: reduce) { .us-group { animation: none; } .us-group:first-child { opacity: 1; } }

/* ---------- Responsive ---------- */
@media (max-width: 820px) {
  .about-grid, .contact-grid, .footer-cols, .hero-grid, .check-list, .service-list, .apply-layout { grid-template-columns: 1fr; }
  .header-top { flex-direction: column; align-items: flex-start; }
  .uni-frame { height: 190px; }
  .us-cell figcaption { font-size: 0.65rem; padding: 1px 6px; }
  .section { scroll-margin-top: 190px; }
  .form-grid { grid-template-columns: 1fr; }
  .dest-row { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  .hero-actions .btn { width: 100%; }
  .card-grid, .testi-grid { grid-template-columns: 1fr; }
  .nav-inner { gap: 0.25rem 0.9rem; }
  .topbar-inner { justify-content: flex-start; }
}