/* Basic reset & variables */
:root {
  --bg: #f4f7fb;
  --card: #ffffff;
  --muted: #667085;
  --accent: #0052D4; /* Updated Accent Color (Blue) */
  --accent-dark: #0039a6;
  --container: 1100px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, Arial;
  background: var(--bg);
  color: #111;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 18px;
}

/* Header */
.site-header {
  background: #fff;
  border-bottom: 1px solid rgba(0, 0, 0, 0.05);
  position: sticky;
  top: 0;
  z-index: 40;
  box-shadow: 0 3px 12px rgba(0, 0, 0, 0.08);
}

.header-inner {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 10px 0;
}

.brand {
  display: flex;
  flex-direction: column;
}

.logo {
  font-weight: 900;
  font-size: 20px;
  background: linear-gradient(90deg, #0052D4, #4364F7, #6FB1FC);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.logo span {
  color: #111;
  font-weight: 700;
  margin-left: 6px;
}

.tag {
  font-size: 12px;
  color: var(--muted);
}

/* Nav */
.nav {
  margin-left: auto;
  display: flex;
  gap: 12px;
  align-items: center;
}

.nav a {
  color: #111;
  text-decoration: none;
  padding: 8px 11px;
  border-radius: 8px;
  font-weight: 700;
  transition: 0.3s ease;
}

.nav a.cta {
  background: var(--accent);
  color: #fff;
}

.nav a.cta:hover {
  background: var(--accent-dark);
}

.nav a.active {
  background: rgba(0, 0, 0, 0.04);
}

.burger {
  display: none;
  background: transparent;
  border: 0;
  font-size: 22px;
  padding: 8px;
  margin-left: 12px;
}

/* Hero */
.hero {
  padding: 34px 0;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 420px;
  gap: 24px;
  align-items: center;
}

.hero-text h1 {
  font-size: 38px;
  margin: 0;
  font-weight: 900;
  background: linear-gradient(90deg, #0052D4, #4364F7, #6FB1FC);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 3px 6px rgba(0, 0, 0, 0.2);
}

.lead {
  color: var(--muted);
  font-size: 15px;
  margin-top: 10px;
}

.hero-list {
  margin-top: 12px;
  list-style: disc;
  padding-left: 20px;
  color: #333;
}

.hero-cta {
  margin-top: 12px;
  display: flex;
  gap: 12px;
}

.btn {
  background: var(--accent);
  color: #fff;
  padding: 10px 14px;
  border-radius: 8px;
  text-decoration: none;
  font-weight: 800;
  transition: 0.3s ease;
}

.btn:hover {
  background: var(--accent-dark);
}

.btn.ghost {
  background: transparent;
  border: 2px solid rgba(0, 0, 0, 0.06);
  color: #111;
}

.btn.ghost:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.contact-small {
  margin-top: 12px;
  color: var(--muted);
}

/* photo */
.hero-photo img {
  width: 100%;
  max-width: 350px;
  border-radius: 12px;
  display: block;
  margin: 0 auto;
  box-shadow: 0 10px 30px rgba(2, 6, 23, 0.12);
}

/* features */
.features {
  display: flex;
  gap: 18px;
  margin-top: 18px;
}

.feature {
  background: var(--card);
  padding: 18px;
  border-radius: 10px;
  flex: 1;
  box-shadow: 0 6px 20px rgba(2, 6, 23, 0.04);
  transition: 0.3s ease;
}

.feature:hover {
  transform: translateY(-5px);
}

/* why */
.why {
  padding: 18px 0;
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 12px;
}

.why-grid > div {
  background: var(--card);
  padding: 16px;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(2, 6, 23, 0.04);
  transition: 0.3s ease;
}

.why-grid > div:hover {
  transform: scale(1.02);
}

/* quick grid */
.quick-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 12px;
}

.card.small {
  background: var(--card);
  padding: 12px;
  border-radius: 10px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(2, 6, 23, 0.04);
  transition: 0.3s ease;
}

.card.small:hover {
  transform: scale(1.03);
}

/* footer */
.site-footer {
  background: #fff;
  padding: 18px;
  border-top: 1px solid rgba(0, 0, 0, 0.04);
  margin-top: 28px;
  box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.06);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 12px;
  align-items: start;
}

.copyright {
  padding: 12px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
}

/* utility grid, course, testimonials, gallery */
.course-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  margin-top: 12px;
}

.card {
  background: var(--card);
  padding: 16px;
  border-radius: 10px;
  box-shadow: 0 6px 20px rgba(2, 6, 23, 0.04);
}

.test-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-top: 12px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
}

.gallery-item img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 8px;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 16px;
}

/* forms */
label {
  display: block;
  margin-bottom: 10px;
  font-weight: 700;
  color: #222;
}

input[type=text],
input[type=tel],
input[type=email],
textarea {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  background: transparent;
}

.small {
  font-size: 13px;
  color: var(--muted);
}

/* responsive */
@media (max-width: 1000px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .why-grid {
    grid-template-columns: 1fr;
  }
  .quick-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .course-grid {
    grid-template-columns: 1fr;
  }
  .test-grid {
    grid-template-columns: 1fr;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .container {
    padding: 14px;
  }
  .nav {
    display: none;
  }
  .burger {
    display: block;
  }
}