/* Smooth scroll */
html {
  scroll-behavior: smooth;
}

/* Background gradient */
body {
  background: radial-gradient(circle at top, #1f2937, #020617);
}

/* NAVBAR (glass efekt) */
header {
  backdrop-filter: blur(12px);
  background: rgba(31, 41, 55, 0.6);
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

/* NAV LINKS */
.nav-link {
  position: relative;
  color: #e5e7eb;
  transition: 0.3s;
}

.nav-link::after {
  content: "";
  position: absolute;
  width: 0%;
  height: 2px;
  bottom: -4px;
  left: 0;
  background: #facc15;
  transition: 0.3s;
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

.nav-link:hover {
  color: #facc15;
}

/* HERO overlay */
.hero-overlay {
  background: linear-gradient(to bottom, rgba(0,0,0,0.6), rgba(2,6,23,0.9));
}

/* BUTTON (glow efekt) */
.btn-primary {
  background: #facc15;
  color: black;
  padding: 12px 28px;
  border-radius: 8px;
  font-weight: bold;
  transition: 0.3s;
  box-shadow: 0 0 15px rgba(250, 204, 21, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px rgba(250, 204, 21, 0.8);
}

/* CARD (glass + glow) */
.card {
  background: rgba(31, 41, 55, 0.6);
  backdrop-filter: blur(10px);
  border-radius: 14px;
  padding: 24px;
  border: 1px solid rgba(255,255,255,0.08);
  transition: 0.3s;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}

.card:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 0 30px rgba(250, 204, 21, 0.15);
  border: 1px solid rgba(250, 204, 21, 0.3);
}

/* INPUTS (modern look) */
.input {
  width: 100%;
  padding: 12px;
  margin-top: 12px;
  background: rgba(31,41,55,0.6);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 8px;
  color: white;
  transition: 0.3s;
}

.input:focus {
  outline: none;
  border-color: #facc15;
  box-shadow: 0 0 10px rgba(250,204,21,0.5);
}

/* TABLE modern */
table {
  border-radius: 10px;
  overflow: hidden;
}

tr {
  transition: 0.2s;
}

tr:hover {
  background: rgba(250,204,21,0.1);
}

/* SECTION TITLES glow */
h1, h2 {
  text-shadow: 0 0 15px rgba(250,204,21,0.2);
}

/* FADE IN animation */
.fade-in {
  opacity: 0;
  transform: translateY(20px);
  animation: fadeIn 1s ease forwards;
}

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