@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&display=swap');

:root {
  --bg-dark: #0f172a;
  --bg-card: rgba(30, 41, 59, 0.6);
  --primary: #6366f1; /* Indigo Neon */
  --primary-hover: #4f46e5;
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --border: rgba(255, 255, 255, 0.08);
  --glow: 0 0 20px rgba(99, 102, 241, 0.15);
  --radius: 16px;
}

* { box-sizing: border-box; outline: none; }

body {
  margin: 0;
  font-family: 'Plus Jakarta Sans', sans-serif;
  background-color: var(--bg-dark);
  background-image: 
    radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.15) 0px, transparent 50%),
    radial-gradient(at 100% 0%, rgba(168, 85, 247, 0.15) 0px, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}

/* --- Layout & Utility --- */
.wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
  gap: 24px;
  padding: 24px;
  max-width: 1400px;
  margin: 0 auto;
  animation: fadeIn 0.8s ease-out;
}

@media (max-width: 768px) {
  .grid { grid-template-columns: 1fr; padding: 16px; }
  .topbar { padding: 12px 16px; flex-direction: column; gap: 10px; }
  .right { width: 100%; justify-content: space-between; }
}

/* --- Components --- */
.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
  border-color: rgba(255, 255, 255, 0.15);
}

h1, h2 { margin: 0; font-weight: 700; letter-spacing: -0.5px; }
h2 { font-size: 1.25rem; display: flex; align-items: center; gap: 10px; color: #e2e8f0; }
h2 i { color: var(--primary); }
p { color: var(--text-muted); line-height: 1.6; margin: 0; }

/* --- Inputs & Buttons --- */
.row { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }

.input {
  flex: 1;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 12px 16px;
  border-radius: 12px;
  font-size: 0.95rem;
  transition: all 0.3s ease;
}

.input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.input.small { max-width: 80px; text-align: center; }

.btn {
  padding: 12px 20px;
  border-radius: 12px;
  border: none;
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: white;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn:hover {
  filter: brightness(1.1);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(99, 102, 241, 0.4);
}

.btn:active { transform: scale(0.98); }

.btn.ghost {
  background: transparent;
  box-shadow: none;
  border: 1px solid var(--border);
  color: var(--text-muted);
}
.btn.ghost:hover { background: rgba(255,255,255,0.05); color: white; border-color: white; }

/* --- Topbar --- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 16px 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand { 
  font-weight: 800; 
  font-size: 1.2rem; 
  background: linear-gradient(to right, #fff, #94a3b8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: flex; 
  align-items: center; 
  gap: 10px;
}

.right { display: flex; gap: 16px; align-items: center; }

.pill {
  padding: 6px 14px;
  border-radius: 99px;
  background: rgba(99, 102, 241, 0.1);
  border: 1px solid rgba(99, 102, 241, 0.2);
  color: #818cf8;
  font-size: 0.85rem;
  font-weight: 600;
}

/* --- Lists & Pre --- */
.list { display: flex; flex-direction: column; gap: 12px; margin-top: 10px; }

.item {
  padding: 16px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border);
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  transition: all 0.2s;
}

.item:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--primary);
  transform: translateX(5px);
}

.pre {
  background: #0b1120;
  padding: 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: #a5b4fc;
  font-family: 'Fira Code', monospace;
  font-size: 0.85rem;
  overflow-x: auto;
}

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

/* Scrollbar Cantik */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #334155; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: #475569; }