:root {
  --primary: #0b5bd3;
  --secondary: #0aa1ff;
  --text: #1a2235;
  --muted: #5b667a;
  --bg: #f5f8fc;
  --white: #fff;
  --radius: 20px;
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
}

/* ===== Base Reset ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: "Poppins", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ===== HEADER ===== */
header {
  background: linear-gradient(120deg, var(--primary), var(--secondary));
  color: var(--white);
  text-align: center;
  padding: 20px 14px 50px;
  position: relative;
  overflow: hidden;
  border-bottom-left-radius: 40px;
  border-bottom-right-radius: 40px;
  box-shadow: 0 8px 20px rgba(11, 91, 211, 0.25);
}

header::before,
header::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  filter: blur(4px);
  animation: float 6s infinite ease-in-out alternate;
}

header::before {
  top: -60px;
  left: -100px;
  width: 300px;
  height: 300px;
}

header::after {
  bottom: -60px;
  right: -120px;
  width: 260px;
  height: 260px;
  animation-delay: 1s;
}

@keyframes float {
  0% {
    transform: translateY(0px);
  }
  100% {
    transform: translateY(25px);
  }
}

/* ===== WRAPPER ===== */
.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== TITLE ===== */
.title {
  font-size: clamp(32px, 4vw, 48px);
  font-weight: 800;
  margin-bottom: 14px;
  letter-spacing: -0.5px;
  text-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
}

.sub {
  font-size: 17px;
  max-width: 720px;
  margin: 0 auto;
  opacity: 0.95;
  line-height: 1.6;
}

/* ===== MAIN CARD ===== */
main {
  margin-top: -50px;
  padding-bottom: 80px;
  animation: fadeIn 0.8s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(12px);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.5);
  padding: 45px;
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 40px rgba(11, 91, 211, 0.2);
}

/* ===== SECTION HEADINGS ===== */
h2 {
  color: var(--primary);
  font-size: 22px;
  margin-top: 32px;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
}

h2::before {
  content: "⚙️";
  font-size: 18px;
}

p,
li {
  color: #2a3342;
  margin-bottom: 14px;
  font-size: 15.5px;
}

ul {
  padding-left: 20px;
}

a {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--secondary);
  text-decoration: underline;
}

/* ===== FOOTER ===== */
.footer {
  text-align: center;
  font-size: 14px;
  color: var(--muted);
  padding: 35px 0 25px;
  margin-top: 60px;
  border-top: 1px solid #e5e9f2;
  background: #fff;
  border-radius: var(--radius) var(--radius) 0 0;
}

.footer span {
  color: var(--primary);
  font-weight: 600;
}

/* ===== HOME BUTTON ===== */
.home-btn {
  color: var(--white);
  font-size: 24px;
  text-decoration: none;
  transition: transform 0.25s, color 0.2s;
  position: absolute;
  right: 25px;
  top: 14%;
  transform: translateY(-50%);
  background: rgba(255, 255, 255, 0.15);
  padding: 5px 13px;
  border-radius: 50%;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
}

.home-btn:hover {
  transform: translateY(-50%) scale(1.15);
  color: #fff000;
  background: rgba(255, 255, 255, 0.25);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 960px) {
  header {
    padding: 27px 16px;
  }

  .card {
    padding: 28px 22px;
  }

  h2 {
    font-size: 19px;
  }

  .home-btn {
    right: 15px;
    font-size: 20px;
     top: 14%;
  }
}