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

:root {
  --navy:       #1E3A6E;
  --navy-dark:  #162D57;
  --navy-light: #2D4D8A;
  --steel:      #7B8FA4;
  --steel-light:#A8BBCC;
  --bg:         #F4F5F7;
  --bg-white:   #FFFFFF;
  --text:       #1A2535;
  --text-muted: #5A6B7E;
  --border:     #DDE3EB;
  --shadow-sm:  0 2px 8px rgba(30,58,110,.08);
  --shadow-md:  0 8px 32px rgba(30,58,110,.12);
  --radius:     12px;
  --transition: 220ms ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, sans-serif;
  font-size: 1rem;
  color: var(--text);
  background: var(--bg-white);
  line-height: 1.6;
}

img, svg { display: block; max-width: 100%; }

a { color: inherit; text-decoration: none; }

/* ─── Container ─────────────────────────────────── */
.container {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* ─── Buttons ───────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.75rem;
  border-radius: 8px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn--primary {
  background: var(--navy);
  color: #fff;
}
.btn--primary:hover {
  background: var(--navy-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--navy);
  border-color: var(--navy);
}
.btn--outline:hover {
  background: var(--navy);
  color: #fff;
  transform: translateY(-2px);
}

/* ─── Section labels & titles ───────────────────── */
.section-label {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--steel);
  margin-bottom: .75rem;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  margin-bottom: 2rem;
}

/* ─── NAV ───────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 100;
  background: rgba(255,255,255,.9);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.nav.scrolled {
  border-color: var(--border);
  box-shadow: var(--shadow-sm);
}

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

.nav__logo {
  display: flex;
  align-items: center;
  gap: .6rem;
}

.nav__logo-icon { width: 36px; height: 30px; }

.nav__logo-text {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
}

.nav__logo-text em {
  font-style: normal;
  font-weight: 300;
  color: var(--steel);
  margin-left: .3rem;
}

.nav__links {
  display: flex;
  gap: 2rem;
}

.nav__links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
  position: relative;
}

.nav__links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--navy);
  transition: width var(--transition);
}

.nav__links a:hover { color: var(--navy); }
.nav__links a:hover::after { width: 100%; }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}

/* ─── HERO ──────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  background: linear-gradient(160deg, #EEF2F8 0%, #F8F9FB 60%, #EDF1F7 100%);
  padding-top: 68px;
}

.hero__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-block: 5rem 6rem;
  gap: 1.5rem;
}

.hero__logo {
  width: clamp(100px, 18vw, 180px);
  animation: floatUp .8s ease both;
}

.hero__title {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  font-weight: 700;
  color: var(--navy);
  letter-spacing: -.02em;
  line-height: 1.1;
  animation: floatUp .8s .15s ease both;
}

.hero__title span {
  font-weight: 300;
  color: var(--steel);
}

.hero__tagline {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 480px;
  animation: floatUp .8s .25s ease both;
}

.hero__cta {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
  animation: floatUp .8s .35s ease both;
}

.hero__wave {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  line-height: 0;
}

/* ─── ABOUT ─────────────────────────────────────── */
.about {
  background: var(--bg-white);
  padding-block: 6rem;
}

.about__inner {
  max-width: 780px;
}

.about__text {
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 3rem;
}

.about__stats {
  display: flex;
  gap: 3rem;
  flex-wrap: wrap;
}

.stat__number {
  display: block;
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1;
}

.stat__label {
  display: block;
  font-size: .85rem;
  color: var(--text-muted);
  margin-top: .3rem;
}

/* ─── SERVICES ──────────────────────────────────── */
.services {
  background: var(--bg);
  padding-block: 6rem;
  text-align: center;
}

.services .section-label,
.services .section-title { text-align: left; }

.services__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1rem;
}

.card {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 2rem;
  text-align: left;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform var(--transition), box-shadow var(--transition);
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: 1.25rem;
}

.card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: .6rem;
}

.card__text {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ─── CONTACT ───────────────────────────────────── */
.contact {
  background: var(--bg-white);
  padding-block: 6rem;
}

.contact__inner { max-width: 680px; }

.contact__form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: .4rem;
}

.form-group label {
  font-size: .85rem;
  font-weight: 600;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  padding: .75rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: .95rem;
  font-family: inherit;
  color: var(--text);
  background: var(--bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: vertical;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--navy-light);
  box-shadow: 0 0 0 3px rgba(45,77,138,.12);
  background: #fff;
}

.form-group input.error,
.form-group textarea.error {
  border-color: #C0392B;
}

.form__feedback {
  font-size: .9rem;
  font-weight: 500;
  min-height: 1.4em;
}

.form__feedback.success { color: #1A7A4A; }
.form__feedback.error   { color: #C0392B; }

/* ─── FOOTER ────────────────────────────────────── */
.footer {
  background: var(--navy);
  padding-block: 2.5rem;
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer__logo {
  display: flex;
  align-items: center;
  gap: .5rem;
  color: #fff;
  font-size: .95rem;
  font-weight: 600;
}

.footer__logo svg { width: 32px; height: 28px; }

.footer__copy {
  font-size: .8rem;
  color: var(--steel-light);
}

/* ─── Animations ────────────────────────────────── */
@keyframes floatUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .6s ease, transform .6s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ─── Responsive ────────────────────────────────── */
@media (max-width: 768px) {
  .nav__links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    width: 100%;
    flex-direction: column;
    gap: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
  }

  .nav__links.open { display: flex; }

  .nav__links a {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
  }

  .nav__links a::after { display: none; }

  .nav__hamburger { display: flex; }

  .form-row { grid-template-columns: 1fr; }

  .about__stats { gap: 2rem; }

  .footer__inner { flex-direction: column; text-align: center; }
}