* { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary: #2563eb;
  --success: #16a34a;
  --danger: #dc2626;
  --gray-bg: #f8fafc;
  --gray-border: #cbd5e1;
}

body {
  font-family: 'Segoe UI', Tahoma, system-ui, -apple-system, BlinkMacSystemFont, Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
  background: var(--gray-bg);
  min-height: 100vh;
  color: #333;
  margin: 0;
}

.login-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 1rem;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-card {
  background: #fff;
  padding: 2.5rem;
  border-radius: 1rem;
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
  width: 100%;
  max-width: 380px;
}

.login-card h1 { text-align: center; margin-bottom: 0.25rem; color: #4f46e5; }
.login-card .subtitle { text-align: center; color: #666; margin-bottom: 1.5rem; }

.field { margin-bottom: 1rem; }
.field label { display: block; margin-bottom: 0.35rem; font-weight: 600; }
.field input {
  width: 100%;
  padding: 0.65rem;
  border: 1px solid #ccc;
  border-radius: 0.5rem;
  font-size: 1rem;
}
.field input:focus { outline: none; border-color: #4f46e5; }

.error-message {
  color: #dc2626;
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
  min-height: 1.25rem;
}

.btn-login, .btn-logout {
  padding: 0.75rem;
  border: none;
  border-radius: 0.5rem;
  background: #4f46e5;
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}
.btn-login { width: 100%; }
.btn-login:hover, .btn-logout:hover { background: #4338ca; }

.topbar {
  background: #fff;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}
.brand { font-weight: 700; font-size: 1.25rem; color: #4f46e5; }
.user-menu { display: flex; align-items: center; gap: 1rem; }
.user-menu span { color: #555; }
.btn-logout { width: auto; padding: 0.5rem 1rem; }

.dashboard {
  max-width: 900px;
  margin: 0 auto;
  padding: 1.5rem 1rem;
  color: #1e293b;
}
.dashboard h1 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.container {
  max-width: 800px;
  margin: auto;
  background: #ffffff;
  padding: 24px;
  border-radius: 8px;
  box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
}

/* Navigasi / Menu Program */
nav {
  display: flex;
  gap: 12px;
  border-bottom: 2px solid var(--gray-border);
  padding-bottom: 12px;
  margin-bottom: 20px;
}
nav button {
  background: none;
  border: none;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  color: #64748b;
  padding: 6px 12px;
}
nav button.active {
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
}

/* Grid Formulir */
.form-group {
  margin-bottom: 14px;
}
.form-group label {
  display: block;
  margin-bottom: 6px;
  font-weight: 500;
  font-size: 14px;
}
.form-group input,
.form-group select {
  width: 100%;
  padding: 8px 12px;
  border: 1px solid var(--gray-border);
  border-radius: 6px;
  font-size: 14px;
}
.form-group input:disabled,
.form-group select:disabled {
  background: #f1f5f9;
  cursor: not-allowed;
}

/* Tombol Aksi */
.btn-group {
  display: flex;
  gap: 10px;
  margin-top: 18px;
}
button.btn {
  padding: 8px 18px;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  font-weight: 600;
  color: white;
}
.btn-primary { background: var(--primary); }
.btn-secondary { background: #64748b; }
button:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Tabel Data */
table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 24px;
}
th, td {
  border: 1px solid var(--gray-border);
  padding: 10px;
  text-align: left;
  font-size: 14px;
}
th {
  background: #f1f5f9;
}
.btn-edit {
  color: var(--primary);
  background: none;
  border: none;
  cursor: pointer;
  font-weight: 600;
  padding: 0;
}
.btn-edit:hover {
  text-decoration: underline;
}