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

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue: #0066FF;
  --blue-dark: #0052CC;
  --blue-light: #E6F0FF;
  --green: #00CC44;
  --green-dark: #00A336;
  --green-light: #E6FFF0;
  --white: #FFFFFF;
  --gray: #F5F7FA;
  --gray-mid: #E8ECF2;
  --text: #0A0F1E;
  --text-mid: #4A5568;
  --text-light: #8A97AA;
}

html { scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--white); color: var(--text); line-height: 1.6; overflow-x: hidden; }

/* ── NAV ── */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 48px; height: 68px;
  background: rgba(255,255,255,0.95);
  backdrop-filter: blur(12px);
  border-bottom: 2px solid var(--blue);
}
.nav-logo { font-family: 'Oswald', sans-serif; font-size: 1.4rem; font-weight: 700; letter-spacing: 0.04em; color: var(--text); text-decoration: none; }
.nav-logo span { color: var(--green); }
.nav-links { display: flex; gap: 8px; list-style: none; }
.nav-links a {
  color: var(--text-mid); text-decoration: none; font-size: 0.9rem; font-weight: 600;
  letter-spacing: 0.03em; padding: 8px 16px; border-radius: 4px;
  transition: background 0.2s, color 0.2s;
}
.nav-links a:hover, .nav-links a.active { background: var(--blue-light); color: var(--blue); }
.nav-cta {
  background: var(--blue); color: var(--white);
  font-family: 'Oswald', sans-serif; font-weight: 600; font-size: 0.9rem;
  letter-spacing: 0.06em; padding: 10px 24px; border: none; cursor: pointer;
  text-decoration: none; transition: background 0.2s;
}
.nav-cta:hover { background: var(--blue-dark); }
.nav-right { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  background: none; border: none; cursor: pointer;
  font-size: 1.6rem; line-height: 1; color: var(--text); padding: 4px 8px;
}
.nav-menu-cta { display: none; }
.nav-links .nav-menu-cta a { color: var(--white); }
.nav-links .nav-menu-cta a:hover { background: var(--blue-dark); color: var(--white); }

/* ── PAGE WRAPPER ── */
.page { padding-top: 68px; }

/* ── SECTION BASE ── */
section { padding: 80px 48px; }
.inner { max-width: 1200px; margin: 0 auto; }
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.72rem; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 14px;
}
.section-tag::before { content: ''; display: block; width: 28px; height: 3px; background: var(--blue); border-radius: 2px; }
h1 { font-family: 'Oswald', sans-serif; font-size: clamp(2.8rem, 6vw, 5rem); font-weight: 700; line-height: 1.0; letter-spacing: 0.01em; }
h2 { font-family: 'Oswald', sans-serif; font-size: clamp(2rem, 4vw, 3rem); font-weight: 700; letter-spacing: 0.02em; margin-bottom: 48px; }
h2 .accent { color: var(--blue); }
h3 { font-family: 'Oswald', sans-serif; font-size: 1.3rem; font-weight: 600; letter-spacing: 0.03em; }

/* ── BUTTONS ── */
.btn { display: inline-block; font-family: 'Oswald', sans-serif; font-weight: 600; font-size: 0.95rem; letter-spacing: 0.06em; padding: 14px 32px; text-decoration: none; transition: all 0.2s; cursor: pointer; border: none; }
.btn-blue { background: var(--blue); color: var(--white); }
.btn-blue:hover { background: var(--blue-dark); transform: translateY(-2px); }
.btn-green { background: var(--green); color: var(--white); }
.btn-green:hover { background: var(--green-dark); transform: translateY(-2px); }
.btn-outline { background: transparent; color: var(--blue); border: 2px solid var(--blue); }
.btn-outline:hover { background: var(--blue); color: var(--white); }

/* ── CARDS ── */
.card { background: var(--white); border: 2px solid var(--gray-mid); padding: 32px; transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s; }
.card:hover { border-color: var(--blue); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,102,255,0.1); }

/* ── FOOTER ── */
footer {
  background: var(--text); color: rgba(255,255,255,0.6);
  padding: 40px 48px; display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px;
}
.footer-logo { font-family: 'Oswald', sans-serif; font-weight: 700; font-size: 1.2rem; color: var(--white); }
.footer-logo span { color: var(--green); }
footer p { font-size: 0.8rem; }
footer a { color: rgba(255,255,255,0.6); text-decoration: none; }
footer a:hover { color: var(--green); }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  nav { padding: 0 20px; }
  .nav-links { display: none; }
  .nav-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column; gap: 0;
    position: fixed; top: 68px; left: 0; right: 0;
    background: var(--white); border-bottom: 2px solid var(--blue);
    padding: 8px 20px 20px; box-shadow: 0 12px 32px rgba(0,0,0,0.08);
    max-height: calc(100vh - 68px); overflow-y: auto;
  }
  .nav-links.open a {
    display: block; padding: 16px 8px; border-radius: 0;
    border-bottom: 1px solid var(--gray-mid); font-size: 1rem;
  }
  .nav-links.open li:last-child a { border-bottom: none; }
  section { padding: 60px 20px; }
  footer { padding: 32px 20px; flex-direction: column; }
}

@media (max-width: 480px) {
  .nav-cta-header { display: none; }
  .nav-links.open .nav-menu-cta { display: block; margin-top: 8px; }
}