/* ========== GLOBAL ========== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Inter", "Times New Roman", serif;
}

body {
  background: radial-gradient(circle at top, #0f172a, #020617);
  color: white;
  padding: 25px;
}


/* ========== NAVBAR ========== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 1000;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 28px;
  background: rgba(0,0,0,0.55);
  backdrop-filter: blur(16px);
  border-radius: 18px;
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 4px 30px rgba(0,0,0,0.3);
  margin-bottom: 10px;
}

.logo {
  font-size: 22px;
  font-weight: 700;
  color: #facc15;
}

.nav-links {
  display: flex;
  gap: 25px;
}

.nav-links a {
  position: relative;
  color: #e5e7eb;
  font-size: 14px;
  font-weight: 600;
  text-transform: uppercase;
  padding-bottom: 4px;
}

/* Animated underline */
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0%;
  height: 2px;
  background: linear-gradient(90deg, #facc15, #fde047);
  transition: width 0.3s ease;
}

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

.nav-links a.active {
  color: #facc15;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
}

.hamburger span {
  width: 24px;
  height: 3px;
  background: white;
  margin: 4px 0;
  border-radius: 2px;
}

/* Mobile menu (slide animation) */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-links {
    position: absolute;
    top: 85px;
    right: 20px;

    flex-direction: column;
    gap: 15px;

    background: rgba(0,0,0,0.7);
    backdrop-filter: blur(18px);
    padding: 18px;
    border-radius: 18px;

    transform: translateY(-10px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.35s ease;
    z-index: 2000;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }
}

/* ========== BREADCRUMB ========== */
.breadcrumb {
  display: flex;
  gap: 8px;
  font-size: 13px;
  margin: 18px 0;
  color: #cbd5f5;
}

.breadcrumb a {
  color: #93c5fd;
  font-weight: 600;
}

.breadcrumb a:hover {
  color: #facc15;
}

.breadcrumb .current {
  color: #facc15;
  font-weight: 700;
}

/* ========== PAGE TRANSITION ========== */
.page-content {
  animation: fadeSlide 0.6s ease forwards;
}

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ========== LAB PAGE ========== */
.lab-page {
  max-width: 950px;
  margin: auto;
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(20px);
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,0.12);
  padding-bottom: 30px;
}

.header {
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(14px);
  border-radius: 20px;
  padding: 16px;
  margin: 16px;
  text-align: center;
  font-size: 20px;
  font-weight: bold;
  color: #facc15;
}

.date {
  text-align: center;
  font-size: 13px;
  color: #94a3b8;
}

.section-title {
  font-size: 24px;
  margin: 30px 20px 10px;
  border-bottom: 2px solid rgba(255,255,255,0.2);
}

.program {
  text-align: center;
  margin-top: 30px;
}

textarea {
  width: 85%;
  height: 170px;
  background: rgba(0,0,0,0.6);
  color: #e5e7eb;
  border-radius: 18px;
  padding: 14px;
  border: 1px solid rgba(255,255,255,0.12);
  font-family: monospace;
   overflow-y: scroll;
  scrollbar-width: none;     /* Firefox */
}
textarea::-webkit-scrollbar {
  display: none;             /* Chrome, Edge, Safari */
}

.copy-btn {
  margin-top: 12px;
  padding: 10px 24px;
  border-radius: 12px;
  background: linear-gradient(135deg, #6366f1, #8b5cf6);
  color: white;
  font-weight: 600;
  border: none;
  cursor: pointer;
}

.copy-btn.copied {
  background: linear-gradient(135deg, #22c55e, #16a34a);
}

footer{
  text-align: center;
  font-size: 12px;
  color: #94a3b8;
  margin-top: 70vh;
}

hr{
  border: none;
  height: 1px;
  background: rgba(255,255,255,0.2);
  margin: 20px 0;
}

.red-bar{
  height: 4px;;
  background: linear-gradient(90deg, #f87171, #ef4444);
  border-radius: 2px;
  margin: 10px 16px 16px 16px;
  padding-top: 10px;
  margin: 20px 0;
}

.labs-footer {
  text-align: center;
  font-size: 12px;
  color: #94a3b8;
  margin-top: 40px;
}



/* ========== HOME PAGE ========== */

.container {
  max-width: 1100px;
  margin: 60px auto 0 auto;
}

/* Featured title */
.featured-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 20px;
  color: #e5e7eb;
}

/* Cards grid */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 30px;
}

/* Card */
.card {
  background: rgba(255,255,255,0.08);
  backdrop-filter: blur(16px);
  border-radius: 26px;
  padding: 28px;
  border: 1px solid rgba(255,255,255,0.12);
  transition: all 0.35s ease;
}

.card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 0 20px 50px rgba(0,0,0,0.45);
}

/* Card inner */
.card-inner {
  background: rgba(0,0,0,0.55);
  border-radius: 16px;
  padding: 22px;
  text-align: center;
  color: #facc15;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

/* Remove default link styles */
a {
  color: inherit;
  text-decoration: none;
}

 #warningBanner {
  position: fixed;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  background: #ff3b3b;
  color: white;
  padding: 14px 24px;
  border-radius: 0 0 12px 12px;
  font-family: Arial, sans-serif;
  font-size: 14px;
  z-index: 9999;
  transition: top 0.4s ease;
  box-shadow: 0 8px 20px rgba(0,0,0,0.25);
}
#warningBanner.show {
  top: 0;
}
@keyframes shake {
  0% { transform: translateX(-50%) translateX(0); }
  20% { transform: translateX(-50%) translateX(-6px); }
  40% { transform: translateX(-50%) translateX(6px); }
  60% { transform: translateX(-50%) translateX(-4px); }
  80% { transform: translateX(-50%) translateX(4px); }
  100% { transform: translateX(-50%) translateX(0); }
}

#warningBanner.shake {
  animation: shake 0.4s ease;
}