/* =====================
   ROOT VARIABLE - Palette Warna Lebih Soft
===================== */
:root {
  --primary: #4facfe;
  --primary-deep: #0088ff;
  --bg-body: #0f172a;
  --bg-sidebar: rgba(15, 23, 42, 0.9);
  --glass: rgba(255, 255, 255, 0.03);
  --border-glass: rgba(255, 255, 255, 0.08);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =====================
   RESET & BASE
===================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
}

body {
  min-height: 100vh;
  display: flex;
  background-color: var(--bg-body);
  background-image: radial-gradient(circle at top right, #1e293b, #0f172a);
  color: var(--text-main);
  overflow-x: hidden;
}

/* =====================
   SIDEBAR - Glassmorphism Effect
===================== */
.sidebar {
  width: 280px;
  height: 100vh;
  position: fixed;
  top: 0;
  left: 0;
  background: var(--bg-sidebar);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-right: 1px solid var(--border-glass);
  padding: 30px 20px;
  display: flex;
  flex-direction: column;
  z-index: 1000;
  transition: var(--transition);
}

.sidebar h2 {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 40px;
  background: linear-gradient(to right, #fff, var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  padding-left: 10px;
}

/* MENU LINK */
.sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.sidebar a {
  text-decoration: none;
  color: var(--text-muted);
  padding: 14px 18px;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
}

.sidebar a:hover {
  background: var(--glass);
  color: #fff;
  transform: translateX(5px);
}

/* ACTIVE MENU */
.sidebar a.active {
  background: rgba(79, 172, 254, 0.15);
  color: var(--primary);
  box-shadow: inset 0 0 0 1px rgba(79, 172, 254, 0.3);
}

/* =====================
   CONTENT AREA
===================== */
.content {
  margin-left: 280px;
  padding: 40px;
  flex: 1;
  width: 100%;
  transition: var(--transition);
}

/* Card Style for Form/Container */
.card {
  background: var(--glass);
  border: 1px solid var(--border-glass);
  border-radius: 20px;
  padding: 30px;
  max-width: 800px;
}

/* =====================
   FORM & INPUTS
===================== */
.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 8px;
}

input, select, textarea {
  width: 100%;
  background: rgba(0, 0, 0, 0.2);
  border: 1px solid var(--border-glass);
  border-radius: 12px;
  padding: 14px 16px;
  color: #fff;
  font-size: 1rem;
  transition: var(--transition);
}

input:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79, 172, 254, 0.15);
  background: rgba(0, 0, 0, 0.3);
}

button {
  padding: 14px 32px;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #fff;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 15px rgba(79, 172, 254, 0.3);
}

button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 172, 254, 0.4);
}

/* =====================
   RESPONSIVE & TOGGLE
===================== */
.menu-toggle {
  display: none; /* Muncul hanya di mobile */
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1100;
  width: 45px;
  height: 45px;
  border-radius: 12px;
  background: var(--primary);
  border: none;
  color: white;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

@media (max-width: 1024px) {
  .sidebar {
    width: 240px;
  }
  .content {
    margin-left: 240px;
  }
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .sidebar {
    transform: translateX(-100%);
    width: 280px;
    box-shadow: 20px 0 50px rgba(0,0,0,0.5);
  }

  .sidebar.active {
    transform: translateX(0);
  }

  .content {
    margin-left: 0;
    padding: 80px 20px 20px 20px;
  }
}