@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&display=swap');

/* ── Brand Variables ─────────────────────────────────── */
:root {
  --navy:      #1F4B6E;
  --blue:      #3B6F94;
  --teal:      #5FA6B8;
  --sage:      #7EC6A8;
  --frost:     #F2F7FA;
  --white:     #FFFFFF;
  --text:      #1a2e3d;
  --text-muted:#5a7a8e;
  --gradient:  linear-gradient(135deg, #1F4B6E 0%, #3B6F94 35%, #5FA6B8 65%, #7EC6A8 100%);
  --gradient-h:linear-gradient(90deg,  #1F4B6E 0%, #3B6F94 35%, #5FA6B8 65%, #7EC6A8 100%);
  --shadow-sm: 0 2px 12px rgba(31,75,110,.08);
  --shadow-md: 0 8px 32px rgba(31,75,110,.14);
  --shadow-lg: 0 20px 60px rgba(31,75,110,.18);
  --radius:    16px;
  --radius-sm: 8px;
  --transition:0.35s cubic-bezier(.4,0,.2,1);
}

/* ── Reset ───────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Poppins', sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }

/* ── Nav ─────────────────────────────────────────────── */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 0 5%;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(95,166,184,.15);
  transition: box-shadow var(--transition);
}
.nav.scrolled { box-shadow: var(--shadow-sm); }

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo img {
  height: 38px;
  width: auto;
}
.nav-logo-text {
  font-size: 1.4rem;
  font-weight: 700;
  background: var(--gradient-h);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.02em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 2rem;
}
.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--navy);
  letter-spacing: 0.01em;
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px; left: 0; right: 100%;
  height: 2px;
  background: var(--gradient-h);
  border-radius: 2px;
  transition: right var(--transition);
}
.nav-links a:hover::after,
.nav-links a.active::after { right: 0; }
.nav-links a:hover { color: var(--teal); }

.nav-cta {
  background: var(--gradient-h);
  color: var(--white) !important;
  padding: 0.5rem 1.25rem;
  border-radius: 50px;
  font-weight: 600 !important;
  font-size: 0.85rem !important;
  transition: transform var(--transition), box-shadow var(--transition) !important;
}
.nav-cta::after { display: none !important; }
.nav-cta:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(95,166,184,.4) !important;
  color: var(--white) !important;
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--navy);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Buttons ─────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 0.85rem 2rem;
  border-radius: 50px;
  font-family: 'Poppins', sans-serif;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--gradient-h);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(95,166,184,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(95,166,184,.5);
}
.btn-outline {
  background: transparent;
  color: var(--navy);
  border: 2px solid rgba(31,75,110,.25);
}
.btn-outline:hover {
  border-color: var(--teal);
  color: var(--teal);
  transform: translateY(-2px);
}
.btn-white {
  background: var(--white);
  color: var(--navy);
  box-shadow: 0 4px 20px rgba(0,0,0,.15);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,0,0,.2);
}

/* ── Section shared ──────────────────────────────────── */
.section { padding: 100px 5%; }
.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 1rem;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}
.section-subtitle {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 560px;
  line-height: 1.7;
}

/* ── Wave Divider ────────────────────────────────────── */
.wave-divider {
  width: 100%;
  overflow: hidden;
  line-height: 0;
}
.wave-divider svg { display: block; width: 100%; }

/* ── Footer ──────────────────────────────────────────── */
footer {
  background: var(--navy);
  color: rgba(255,255,255,.75);
  padding: 60px 5% 30px;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand .nav-logo-text { font-size: 1.3rem; }
.footer-brand p {
  margin-top: 1rem;
  font-size: 0.875rem;
  line-height: 1.7;
  color: rgba(255,255,255,.6);
  max-width: 280px;
}
.footer-heading {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--sage);
  margin-bottom: 1rem;
}
.footer-links li { margin-bottom: 0.6rem; }
.footer-links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--white); }
.footer-bottom {
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.8rem;
  color: rgba(255,255,255,.4);
  flex-wrap: wrap;
  gap: 0.5rem;
}
.footer-bottom a { color: rgba(255,255,255,.5); }
.footer-bottom a:hover { color: var(--sage); }

/* ── Animations ──────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50%       { transform: translateY(-12px); }
}
@keyframes waveFlow {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}
@keyframes scaleIn {
  from { opacity: 0; transform: scale(.94); }
  to   { opacity: 1; transform: scale(1); }
}

.animate-up   { animation: fadeUp  .7s ease both; }
.animate-in   { animation: fadeIn  .8s ease both; }
.delay-1      { animation-delay: .1s; }
.delay-2      { animation-delay: .2s; }
.delay-3      { animation-delay: .35s; }
.delay-4      { animation-delay: .5s; }
.delay-5      { animation-delay: .65s; }

/* ── Utility ─────────────────────────────────────────── */
.text-gradient {
  background: var(--gradient-h);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Responsive Nav ──────────────────────────────────── */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px; left: 0; right: 0;
    background: var(--white);
    flex-direction: column;
    gap: 0;
    padding: 1rem 0 1.5rem;
    border-bottom: 1px solid rgba(95,166,184,.15);
    box-shadow: var(--shadow-md);
    transform: translateY(-120%);
    transition: transform var(--transition);
    pointer-events: none;
  }
  .nav-links.open {
    transform: translateY(0);
    pointer-events: all;
  }
  .nav-links a { padding: 0.75rem 2rem; width: 100%; }
  .nav-links a::after { display: none; }
  .nav-cta { margin: 0.5rem 2rem; }
  .nav-hamburger { display: flex; }

  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
  .section { padding: 70px 5%; }
}