/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #FFFFFF;
  --surface: #F8FAFC;
  --cool: #0369A1;
  --cool-light: #EFF6FF;
  --cool-mid: #2563EB;
  --warm: #EA580C;
  --warm-light: #FFF7ED;
  --dark: #0F172A;
  --dark2: #1E293B;
  --muted: #64748B;
  --border: #E2E8F0;
  --radius: 4px;
  --radius-lg: 12px;
  --shadow: 0 2px 8px rgba(15,23,42,0.06);
  --shadow-lg: 0 4px 24px rgba(15,23,42,0.1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--dark);
  background: var(--bg);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2 {
  font-family: 'Inter', sans-serif;
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.025em;
  color: var(--dark);
}
h1 { font-size: clamp(2.6rem, 6vw, 4.8rem); }
h2 { font-size: clamp(1.9rem, 3.5vw, 3rem); }
h3 { font-family: 'Inter', sans-serif; font-size: 1rem; font-weight: 700; }

p { color: var(--muted); font-size: 1rem; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }

.container { max-width: 1140px; margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }

.section__header {
  text-align: center;
  max-width: 580px;
  margin: 0 auto 56px;
}

.section__eyebrow {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--cool);
  margin-bottom: 12px;
}

.section__sub { margin-top: 14px; }

/* ===== FOCUS STATES ===== */
:focus-visible {
  outline: 2px solid var(--cool);
  outline-offset: 3px;
  border-radius: var(--radius);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: var(--radius);
  transition: background 150ms ease, border-color 150ms ease, transform 150ms ease;
}

.btn--primary {
  background: var(--cool);
  color: #fff;
  border-color: var(--cool);
}
.btn--primary:hover {
  background: #025d8a;
  border-color: #025d8a;
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.35);
}
.btn--ghost:hover { border-color: var(--warm); color: var(--warm); }

.btn--sm { padding: 9px 18px; font-size: 0.85rem; }
.btn--full { width: 100%; }

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow 200ms ease;
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'Inter', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--dark);
  cursor: pointer;
}
.nav__logo strong { color: var(--cool); }
.logo-icon { width: 18px; height: 18px; color: var(--cool); flex-shrink: 0; }

.nav__links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--muted);
  transition: color 150ms ease;
  cursor: pointer;
}
.nav__links a:hover { color: var(--cool); }

.nav__hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--dark);
  padding: 8px;
  transition: color 150ms ease;
}
.nav__hamburger:hover { color: var(--cool); }
.nav__hamburger svg { width: 22px; height: 22px; display: block; }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 68px;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: var(--dark);
}

/* Flat design hero — geometric color blocks, no gradients */
.hero__bg::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 40%;
  height: 100%;
  background: var(--dark2);
  clip-path: polygon(15% 0, 100% 0, 100% 100%, 0% 100%);
}

.hero__bg::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 4px;
  height: 60%;
  background: linear-gradient(to bottom, var(--cool), var(--warm));
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 680px;
  padding: 80px 0;
  color: #fff;
}

.hero__eyebrow {
  display: inline-block;
  background: rgba(3,105,161,0.2);
  border: 1px solid rgba(3,105,161,0.4);
  color: #60b4e8;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: var(--radius);
  margin-bottom: 28px;
}

.hero__heading { color: #fff; margin-bottom: 20px; }
.hero__sub {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 40px;
  line-height: 1.72;
  font-weight: 300;
  max-width: 540px;
}

.hero__ctas { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== PROOF BAR ===== */
.proof-bar {
  background: var(--cool);
  padding: 28px 0;
}

.proof-bar__inner {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.proof-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 32px;
}

.proof-item__icon { width: 20px; height: 20px; color: rgba(255,255,255,0.7); flex-shrink: 0; }
.proof-item div { display: flex; flex-direction: column; }
.proof-num { font-family: 'Inter', sans-serif; font-size: 1.1rem; font-weight: 800; color: #fff; line-height: 1.1; letter-spacing: -0.02em; }
.proof-label { font-size: 0.68rem; text-transform: uppercase; letter-spacing: 0.1em; color: rgba(255,255,255,0.6); margin-top: 2px; }

.proof-divider { width: 1px; height: 32px; background: rgba(255,255,255,0.2); flex-shrink: 0; }

/* ===== SERVICES ===== */
.services { background: var(--surface); }

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* Flat design: no shadow, color top border only */
.service-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 32px 24px;
  border: 1px solid var(--border);
  border-top: 3px solid var(--cool);
  cursor: default;
  transition: background 150ms ease, border-color 150ms ease;
}

.service-card--warm { border-top-color: var(--warm); }
.service-card--cool { border-top-color: var(--cool); }

.service-card:hover { background: var(--surface); }
.service-card--cool .service-card__icon { color: var(--cool); }
.service-card--warm .service-card__icon { color: var(--warm); }

.service-card__icon { width: 28px; height: 28px; margin-bottom: 16px; display: block; }
.service-card h3 { margin-bottom: 8px; font-size: 1rem; }
.service-card p { font-size: 0.9rem; line-height: 1.65; }

/* ===== ABOUT ===== */
.about { background: var(--bg); }

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__image-wrap { position: relative; }

.about__image-placeholder {
  width: 100%;
  aspect-ratio: 4/5;
  background: var(--dark);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 24px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.3);
  overflow: hidden;
  position: relative;
}

/* Flat design: simple 2-color geometric split */
.about__image-placeholder::before {
  content: '';
  position: absolute;
  top: 0; right: 0;
  width: 40%;
  height: 100%;
  background: var(--dark2);
}

.about__image-placeholder::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--cool), var(--warm));
}

.about__badge {
  position: absolute;
  bottom: -16px; right: -16px;
  background: var(--cool);
  color: #fff;
  border-radius: var(--radius);
  padding: 16px 24px;
  text-align: center;
}
.about__badge strong { display: block; font-family: 'Inter', sans-serif; font-size: 2rem; font-weight: 800; line-height: 1; letter-spacing: -0.04em; }
.about__badge span { font-size: 0.72rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; }

.about__content .section__eyebrow { margin-bottom: 8px; }
.about__content h2 { margin: 8px 0 20px; }
.about__content p { margin-bottom: 16px; }

.about__list { list-style: none; margin: 24px 0 32px; display: flex; flex-direction: column; gap: 12px; }
.about__list li { display: flex; align-items: center; gap: 10px; color: var(--dark2); font-size: 0.925rem; font-weight: 500; }
.check-icon { width: 18px; height: 18px; color: var(--cool); flex-shrink: 0; }

/* ===== TESTIMONIALS ===== */
.testimonials { background: var(--surface); }
.testimonials h2 { color: var(--dark); }

.testimonials__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.testimonial-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  border-bottom: 3px solid var(--cool);
  transition: border-bottom-color 150ms ease;
}
.testimonial-card:hover { border-bottom-color: var(--warm); }

.testimonial-card p {
  color: var(--muted);
  margin: 14px 0 24px;
  font-style: italic;
  font-size: 0.925rem;
  line-height: 1.72;
}

.stars { display: flex; gap: 2px; }
.stars svg { width: 15px; height: 15px; color: var(--warm); }

.testimonial-card__author { display: flex; align-items: center; gap: 14px; }

.author-avatar {
  width: 40px; height: 40px;
  border-radius: var(--radius);
  background: var(--cool-light);
  border: 1px solid #BFDBFE;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 0.78rem;
  color: var(--cool);
  flex-shrink: 0;
}

.testimonial-card__author strong { display: block; font-size: 0.9rem; color: var(--dark); }
.testimonial-card__author span { font-size: 0.75rem; color: var(--muted); }

/* ===== CONTACT ===== */
.contact { background: var(--bg); }

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.contact__info h2 { margin: 12px 0 16px; }
.contact__info > p { margin-bottom: 40px; }

.contact__details { display: flex; flex-direction: column; gap: 28px; }
.contact__detail { display: flex; align-items: flex-start; gap: 16px; }
.detail-icon { width: 20px; height: 20px; color: var(--cool); flex-shrink: 0; margin-top: 2px; }

.contact__detail strong { display: block; font-size: 0.7rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: var(--cool); margin-bottom: 4px; }
.contact__detail span { color: var(--muted); font-size: 0.9rem; }

.contact__form {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 40px;
  border: 1px solid var(--border);
  border-top: 3px solid var(--cool);
}

.contact__form h3 { font-size: 1.3rem; font-weight: 800; letter-spacing: -0.02em; margin-bottom: 28px; }

.required { color: var(--warm); }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 18px; }

.form-group label { font-size: 0.72rem; font-weight: 700; color: var(--muted); letter-spacing: 0.1em; text-transform: uppercase; }

.form-group input,
.form-group select,
.form-group textarea {
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--dark);
  background: var(--bg);
  transition: border-color 150ms ease;
  width: 100%;
  cursor: text;
}
.form-group select { cursor: pointer; }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--cool);
  box-shadow: 0 0 0 3px rgba(3,105,161,0.1);
}

.form-group textarea { resize: vertical; }
.form-note { text-align: center; font-size: 0.78rem; color: var(--muted); margin-top: 14px; }

/* ===== FOOTER ===== */
.footer { background: var(--dark); padding: 32px 0; }

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer .nav__logo { color: #fff; }
.footer .nav__logo strong { color: #60b4e8; }
.footer .logo-icon { color: #60b4e8; }
.footer p { font-size: 0.82rem; color: rgba(255,255,255,0.3); }
.footer__links { display: flex; gap: 24px; }
.footer__links a { font-size: 0.82rem; color: rgba(255,255,255,0.3); transition: color 150ms ease; cursor: pointer; }
.footer__links a:hover { color: #60b4e8; }

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .about__inner { grid-template-columns: 1fr; gap: 40px; }
  .about__badge { bottom: 16px; right: 16px; }
  .testimonials__grid { grid-template-columns: 1fr; }
  .contact__inner { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 640px) {
  .nav__links { display: none; }
  .nav__hamburger { display: block; }
  .services__grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .hero__ctas { flex-direction: column; align-items: flex-start; }
  .footer__inner { flex-direction: column; text-align: center; }
  .proof-bar__inner { flex-direction: column; align-items: flex-start; }
  .proof-divider { display: none; }
}