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

:root {
  --navy-deep:   #050d1a;
  --navy-dark:   #0a1628;
  --navy-mid:    #0f2044;
  --navy-card:   #112250;
  --navy-border: #1c3366;
  --accent:      #2a6fdb;
  --accent-glow: #3a80f0;
  --accent-soft: rgba(42,111,219,.18);
  --text-primary: #e8edf7;
  --text-muted:   #7a91ba;
  --text-dim:     #4a6090;

  --font-display: 'Syne', sans-serif;
  --font-body:    'Inter', sans-serif;

  --radius: 10px;
  --transition: 260ms ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--navy-deep);
  color: var(--text-primary);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

/* ─── TYPOGRAPHY ───────────────────────────────────── */
h1, h2, h3 { font-family: var(--font-display); line-height: 1.15; }

/* ─── UTILITIES ────────────────────────────────────── */
.container {
  max-width: 1140px;
  margin: 0 auto;
  padding: 0 24px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: .9rem;
  letter-spacing: .04em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 13px 30px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn--primary {
  background: var(--accent);
  color: #fff;
}
.btn--primary:hover {
  background: var(--accent-glow);
  box-shadow: 0 0 28px rgba(42,111,219,.45);
  transform: translateY(-2px);
}

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--navy-border);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent-glow);
  transform: translateY(-2px);
}

.btn--full { width: 100%; justify-content: center; }

/* ─── LOGO ─────────────────────────────────────────── */
.logo {
  text-decoration: none;
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  letter-spacing: .01em;
}
.logo__vital  { color: var(--accent-glow); }
.logo__credit { color: var(--text-primary); }
.logo__tag    { color: var(--text-muted); font-weight: 600; font-size: .75rem; letter-spacing: .12em; margin-left: 6px; align-self: center; text-transform: uppercase; }

.logo--footer .logo__vital,
.logo--footer .logo__credit { font-size: 1rem; }

/* ─── HEADER ───────────────────────────────────────── */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(5,13,26,.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--navy-border);
  transition: background var(--transition);
}

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

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav__link {
  text-decoration: none;
  color: var(--text-muted);
  font-size: .875rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover { color: var(--text-primary); background: var(--accent-soft); }

.nav__link--cta {
  background: var(--accent);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: .04em;
  text-transform: uppercase;
  font-size: .78rem;
}
.nav__link--cta:hover { background: var(--accent-glow); color: #fff; }

/* BURGER */
.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ─── HERO ─────────────────────────────────────────── */
.hero {
  position: relative;
  padding: 160px 0 110px;
  overflow: hidden;
  background: linear-gradient(160deg, var(--navy-dark) 0%, var(--navy-deep) 60%);
}

.hero__grid-overlay {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(42,111,219,.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(42,111,219,.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black, transparent);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black, transparent);
  pointer-events: none;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.hero__eyebrow {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-glow);
  border: 1px solid var(--accent-soft);
  background: var(--accent-soft);
  padding: 5px 14px;
  border-radius: 20px;
  margin-bottom: 28px;
}

.hero__title {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 22px;
  letter-spacing: -.01em;
}
.hero__title em {
  font-style: normal;
  color: var(--accent-glow);
}

.hero__sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 600px;
  margin-bottom: 40px;
  font-weight: 300;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

/* ─── SECTION SHARED ───────────────────────────────── */
.section {
  padding: 96px 0;
}

.section__header {
  margin-bottom: 60px;
}

.section__title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 12px;
}

/* ─── ABOUT ────────────────────────────────────────── */
.about {
  background: var(--navy-dark);
  border-top: 1px solid var(--navy-border);
  border-bottom: 1px solid var(--navy-border);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  align-items: start;
}

.about__label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--accent-glow);
  margin-bottom: 16px;
}

.about__title {
  font-size: clamp(1.9rem, 3.5vw, 3rem);
  font-weight: 700;
  color: var(--text-primary);
  position: sticky;
  top: 100px;
}

.about__text p {
  color: var(--text-muted);
  margin-bottom: 18px;
  font-size: 1.03rem;
  font-weight: 300;
}
.about__text p:last-child { margin-bottom: 0; }

/* ─── SERVICES ─────────────────────────────────────── */
.services {
  background: var(--navy-deep);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.service-card {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.service-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 8px 40px rgba(42,111,219,.18);
}

.service-card__icon {
  font-size: 1.4rem;
  color: var(--accent-glow);
  margin-bottom: 18px;
}

.service-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}

.service-card__text {
  font-size: .92rem;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.65;
}

/* ─── FAQ ──────────────────────────────────────────── */
.faq {
  background: var(--navy-dark);
  border-top: 1px solid var(--navy-border);
}

.faq__inner { max-width: 820px; }

.faq__list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border: 1px solid var(--navy-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.faq__item {
  border-bottom: 1px solid var(--navy-border);
}
.faq__item:last-child { border-bottom: none; }

.faq__question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 22px 28px;
  text-align: left;
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  transition: background var(--transition), color var(--transition);
}
.faq__question:hover { background: var(--accent-soft); }
.faq__question[aria-expanded="true"] { color: var(--accent-glow); background: var(--accent-soft); }

.faq__arrow {
  font-size: 1.1rem;
  color: var(--accent-glow);
  transition: transform var(--transition);
  flex-shrink: 0;
}
.faq__question[aria-expanded="true"] .faq__arrow { transform: rotate(180deg); }

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
}
.faq__answer.open {
  max-height: 300px;
}
.faq__answer p {
  padding: 0 28px 22px;
  color: var(--text-muted);
  font-size: .95rem;
  font-weight: 300;
  line-height: 1.7;
}

/* ─── CONTACT ──────────────────────────────────────── */
.contact {
  background: var(--navy-deep);
  border-top: 1px solid var(--navy-border);
}

.contact__sub {
  color: var(--text-muted);
  font-size: .98rem;
  margin-top: 10px;
  font-weight: 300;
}

.contact__layout {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 56px;
  align-items: start;
  margin-top: 48px;
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form__group label {
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.form__group input,
.form__group select,
.form__group textarea {
  background: var(--navy-card);
  border: 1px solid var(--navy-border);
  border-radius: 8px;
  padding: 12px 16px;
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: none;
  appearance: none;
}
.form__group input::placeholder,
.form__group textarea::placeholder { color: var(--text-dim); }

.form__group input:focus,
.form__group select:focus,
.form__group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(42,111,219,.2);
}

.form__note {
  font-size: .85rem;
  color: var(--accent-glow);
  min-height: 1.2em;
  text-align: center;
}

/* INFO BLOCKS */
.contact__info {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.info-block__label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-glow);
  margin-bottom: 6px;
}

.info-block__value {
  font-size: 1rem;
  color: var(--text-muted);
  font-weight: 300;
  line-height: 1.6;
  text-decoration: none;
  transition: color var(--transition);
}
a.info-block__value:hover { color: var(--accent-glow); }

/* ─── FOOTER ───────────────────────────────────────── */
.footer {
  background: var(--navy-dark);
  border-top: 1px solid var(--navy-border);
  padding: 36px 0;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.footer__copy {
  font-size: .8rem;
  color: var(--text-dim);
  font-weight: 400;
}

/* ─── RESPONSIVE ───────────────────────────────────── */
@media (max-width: 900px) {
  .services__grid { grid-template-columns: 1fr 1fr; }
  .about__inner   { grid-template-columns: 1fr; gap: 32px; }
  .about__title   { position: static; }
  .contact__layout { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .nav { display: none; flex-direction: column; align-items: stretch; }
  .nav.open {
    display: flex;
    position: fixed;
    top: 68px; left: 0; right: 0;
    background: var(--navy-dark);
    border-bottom: 1px solid var(--navy-border);
    padding: 16px 24px;
    gap: 6px;
  }
  .nav__link { display: block; }
  .burger   { display: flex; }

  .services__grid { grid-template-columns: 1fr; }
  .form__row      { grid-template-columns: 1fr; }
  .hero           { padding: 120px 0 80px; }
  .section        { padding: 64px 0; }

  .footer__inner  { flex-direction: column; align-items: flex-start; gap: 10px; }
}

/* ─── SCROLL REVEAL ────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}