* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: #f8fafc;
  color: #0f172a;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

/* HEADER */

.site-header {
  background: #061331;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: #ffffff;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.05rem;
}

.brand img {
  height: 42px;
  width: auto;
  display: block;
}

.nav nav {
  display: flex;
  align-items: center;
  gap: 24px;
}

.nav nav a {
  color: #ffffff;
  text-decoration: none;
  font-weight: 700;
}

.nav nav a:hover {
  color: #60a5fa;
}

/* HERO */

.hero,
.support-hero {
  padding: 90px 20px;
  background: linear-gradient(135deg, #0f172a, #1e3a8a);
  color: #ffffff;
  text-align: center;
}

.hero-content {
  max-width: 900px;
}

.hero-logo {
  max-width: 260px;
  width: 70%;
  height: auto;
  margin-bottom: 24px;
}

.hero h1,
.support-hero h1 {
  font-size: clamp(2.1rem, 5vw, 3.4rem);
  margin: 0 0 20px;
}

.hero p,
.support-hero p {
  max-width: 780px;
  margin: 0 auto;
  color: #dbeafe;
  font-size: 1.15rem;
  line-height: 1.7;
}

/* BUTTONS */

.hero-buttons,
.contact-buttons {
  margin-top: 30px;
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 14px 22px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
}

.btn.primary {
  background: #2563eb;
  color: #ffffff;
}

.btn.secondary {
  background: #ffffff;
  color: #1e3a8a;
}

.btn:hover {
  transform: translateY(-1px);
}

/* GENERAL SECTIONS */

.section,
.support-content {
  padding: 70px 20px;
}

.section h2,
.support-content h2 {
  font-size: 2rem;
  margin-top: 0;
}

.section-intro {
  max-width: 760px;
  color: #475569;
  line-height: 1.7;
}

/* CARDS */

.cards,
.support-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 28px;
  margin-top: 36px;
}

.card,
.support-card,
.highlight-box {
  background: #ffffff;
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 15px 35px rgba(15, 23, 42, 0.12);
}

.card h3,
.support-card h2,
.highlight-box h3 {
  margin-top: 0;
}

.card p,
.support-card p,
.support-card li,
.highlight-box li {
  color: #334155;
  line-height: 1.6;
}

/* ABOUT DARK SECTION */

.dark-section {
  background: #0f172a;
  color: #ffffff;
}

.dark-section p {
  color: #cbd5e1;
  line-height: 1.7;
}

.split {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 32px;
  align-items: start;
}

/* CONTACT */

.contact-section {
  text-align: center;
  background: #f8fafc;
}

.contact-section p {
  max-width: 740px;
  margin-left: auto;
  margin-right: auto;
  color: #475569;
  line-height: 1.7;
}

.small-note {
  font-size: 0.95rem;
  margin-top: 22px;
}

/* SUPPORT FORM */

.form-section {
  padding: 80px 20px;
  background: #0f172a;
  color: #ffffff;
}

.form-container {
  max-width: 1000px;
  margin: 0 auto;
  text-align: center;
}

.form-container h2 {
  font-size: 2rem;
  margin-bottom: 12px;
}

.form-container p {
  max-width: 760px;
  margin: 0 auto 32px;
  color: #cbd5e1;
  line-height: 1.7;
}

.form-frame {
  background: #ffffff;
  border-radius: 18px;
  padding: 10px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  overflow: hidden;
}

.form-frame iframe {
  width: 100%;
  min-height: 850px;
  border: 0;
  border-radius: 12px;
}

/* FOOTER */

footer,
.site-footer {
  background: #061331;
  color: #cbd5e1;
  padding: 28px 20px;
  text-align: center;
}

footer a,
.site-footer a {
  color: #93c5fd;
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

/* MOBILE */

@media (max-width: 768px) {
  .nav {
    flex-direction: column;
    gap: 14px;
  }

  .nav nav {
    flex-wrap: wrap;
    justify-content: center;
    gap: 16px;
  }

  .brand {
    font-size: 1rem;
  }

  .brand img {
    height: 38px;
  }

  .cards,
  .support-grid,
  .split {
    grid-template-columns: 1fr;
  }

  .hero,
  .support-hero {
    padding: 70px 20px;
  }

  .form-frame iframe {
    min-height: 950px;
  }

  .footer-content {
    justify-content: center;
    text-align: center;
  }
}