@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--color-bg-main);
  min-height: 100vh;
  color: var(--color-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
/* ============================================
   PIBG @ SPS - PROFESSIONAL DESIGN UPGRADE
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  /* NEUTRAL COLORS - Awwwards Style */
  --color-primary: #000000;
  --color-secondary: #666666;
  --color-border: #E5E5E5;
  --color-bg-main: #FAFAFA;
  --color-bg-card: #FFFFFF;
  --color-accent: #0066FF;
  
  /* TYPOGRAPHY */
  --font-size-base: 16px;
  --font-size-lg: 20px;
  --font-size-xl: 28px;
  --font-size-xxl: 36px;
  
  /* SPACING */
  --spacing-xs: 8px;
  --spacing-sm: 16px;
  --spacing-md: 24px;
  --spacing-lg: 40px;
  --spacing-xl: 60px;
  
  /* SHADOWS */
  --shadow-subtle: 0 1px 3px rgba(0,0,0,0.04);
  --shadow-card: 0 2px 8px rgba(0,0,0,0.06);
  
  /* BORDERS */
  --border-width: 1px;
  --border-radius: 4px;
  
  /* TRANSITIONS */
  --transition: all 0.2s ease;
}

/* ---------- HEADER ---------- */
.main-header {
  background: var(--color-bg-card);
  border-bottom: var(--border-width) solid var(--color-border);
  padding: var(--spacing-lg) 0;
}

.header-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.header-brand {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.logo-wrapper {
  width: 40px;
  height: 40px;
  background: var(--color-primary);
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--color-bg-card);
}

.brand-text {
  flex: 1;
}

.brand-title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin: 0;
  color: var(--color-primary);
  letter-spacing: -0.5px;
}

.brand-subtitle {
  font-size: 13px;
  margin: 4px 0 0 0;
  color: var(--color-secondary);
  font-weight: 400;
}

.header-info {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.info-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-size: 14px;
  color: var(--color-secondary);
}

.info-item i {
  font-size: 16px;
  color: var(--color-primary);
}

/* ---------- NAVIGATION ---------- */
.main-nav {
  background: var(--color-bg-card);
  border-bottom: var(--border-width) solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  gap: 0;
}

.tab-btn {
  position: relative;
  padding: 16px 24px;
  border: none;
  background: transparent;
  color: var(--color-secondary);
  font-family: inherit;
  font-weight: 500;
  font-size: var(--font-size-base);
  cursor: pointer;
  transition: var(--transition);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  border-bottom: 2px solid transparent;
}

.tab-btn span {
  color: var(--color-secondary);
}

.tab-btn.active span {
  color: var(--color-primary);
}

.tab-btn i {
  font-size: 18px;
}

.tab-btn:hover {
  background: var(--color-bg-main);
  color: var(--color-primary);
}

.tab-btn.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

.tab-btn.active::after {
  display: none;
}

/* ---------- MAIN CONTENT ---------- */
main {
  min-height: calc(100vh - 300px);
  padding: var(--spacing-xl) 0;
  background: var(--color-bg-main);
}

main.max-w-5xl {
  max-width: 1200px;
  margin: 0 auto;
  padding: var(--spacing-lg);
  background: var(--color-bg-card);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-card);
}

.tab-content {
  display: none;
}

.tab-content.active-tab {
  display: block;
  animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}
/* ---------- Typography ---------- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: 0.5em;
  color: var(--color-primary);
}

h1 { font-size: var(--font-size-xxl); }
h2 { font-size: var(--font-size-xl); }
h3 { font-size: var(--font-size-lg); }
h4 { font-size: var(--font-size-base); }

/* ---------- Layout ---------- */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-bg-card);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  box-shadow: var(--shadow-card);
  padding: var(--spacing-lg);
  transition: var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  margin-bottom: var(--spacing-md);
  border-bottom: var(--border-width) solid var(--color-border);
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--border-radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
}

.card-icon.coral {
  background: var(--color-accent);
  color: white;
}

.card-icon.ash {
  background: var(--color-bg-main);
  color: var(--color-primary);
}

.card-icon.blue {
  background: rgba(0, 102, 255, 0.1);
  color: var(--color-accent);
}

.card-icon.purple {
  background: rgba(139, 92, 246, 0.1);
  color: #8b5cf6;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--spacing-xs);
  padding: 12px 24px;
  border-radius: var(--border-radius);
  font-weight: 600;
  font-size: var(--font-size-base);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  font-family: inherit;
}

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

.btn-primary {
  background: var(--color-accent);
  color: white;
  box-shadow: var(--shadow-card);
}

.btn-primary:hover {
  background: #0052CC;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(0, 102, 255, 0.3);
}

.btn-secondary {
  background: var(--color-bg-main);
  color: var(--color-primary);
  border: var(--border-width) solid var(--color-border);
}

.btn-secondary:hover {
  background: #F3F4F6;
  border-color: var(--color-primary);
}
.btn-success {
  background: #10B981;
  color: white;
}

.btn-success:hover {
  background: #059669;
}

.btn-danger {
  background: #DC2626;
  color: white;
}

.btn-danger:hover {
  background: #991B1B;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

.btn-sm {
  padding: 8px 16px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 32px;
  font-size: 18px;
}
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn:disabled:hover {
  transform: none;
}

/* ---------- Forms ---------- */
input, select, textarea {
  width: 100%;
  padding: 12px 16px;
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  font-size: var(--font-size-base);
  font-family: inherit;
  transition: var(--transition);
  background: var(--color-bg-card);
  color: var(--color-primary);
}

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(0, 102, 255, 0.1);
}

input::placeholder, textarea::placeholder {
  color: #9CA3AF;
}

input[type="file"] {
  padding: 8px;
  border-style: dashed;
  cursor: pointer;
}

input:disabled, select:disabled, textarea:disabled {
  background: var(--color-bg-main);
  color: var(--color-secondary);
  cursor: not-allowed;
}

label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-primary);
  margin-bottom: var(--spacing-xs);
}

label.required::after {
  content: " *";
  color: #DC2626;
}
/* Form Validation States */
input.error,
select.error,
textarea.error {
  border-color: #DC2626;
}

input.error:focus,
select.error:focus,
textarea.error:focus {
  border-color: #DC2626;
  box-shadow: 0 0 0 3px rgba(220, 38, 38, 0.1);
}

input.success,
select.success,
textarea.success {
  border-color: #10B981;
}

input.success:focus,
select.success:focus,
textarea.success:focus {
  border-color: #10B981;
  box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-error-message {
  color: #DC2626;
  font-size: 12px;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.form-success-message {
  color: #059669;
  font-size: 12px;
  margin-top: 4px;
  display: flex;
  align-items: center;
  gap: 4px;
}

.form-help-text {
  color: var(--color-secondary);
  font-size: 12px;
  margin-top: 4px;
}

/* ---------- Badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  line-height: 1;
}

.badge-baru { 
  background: rgba(0, 102, 255, 0.1);
  color: var(--color-accent);
}

.badge-query { 
  background: rgba(245, 158, 11, 0.1);
  color: #D97706;
}

.badge-untp { 
  background: rgba(139, 92, 246, 0.1);
  color: #8b5cf6;
}

.badge-lulus { 
  background: rgba(16, 185, 129, 0.1);
  color: #059669;
}

.badge-selesai { 
  background: rgba(6, 182, 212, 0.1);
  color: #0891B2;
}

/* ---------- Tables ---------- */
table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-card);
  border: var(--border-width) solid var(--color-border);
  border-radius: var(--border-radius);
  overflow: hidden;
}

thead {
  background: var(--color-bg-main);
  border-bottom: var(--border-width) solid var(--color-border);
}

th, td {
  padding: 16px;
  text-align: left;
  font-size: 14px;
}

th {
  font-weight: 600;
  text-transform: uppercase;
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--color-secondary);
}

tbody tr {
  border-bottom: var(--border-width) solid var(--color-border);
  transition: var(--transition);
}

tbody tr:last-child {
  border-bottom: none;
}

tbody tr:hover {
  background: var(--color-bg-main);
}

tbody td {
  color: var(--color-primary);
}

/* ---------- Alerts ---------- */
.alert {
  padding: var(--spacing-md);
  border-radius: var(--border-radius);
  border-left: 3px solid;
  margin-bottom: var(--spacing-md);
  font-size: 14px;
}

.alert-info {
  background: rgba(0, 102, 255, 0.1);
  border-color: var(--color-accent);
  color: #1E40AF;
}

.alert-success {
  background: rgba(16, 185, 129, 0.1);
  border-color: #10B981;
  color: #065F46;
}

.alert-warning {
  background: rgba(245, 158, 11, 0.1);
  border-color: #F59E0B;
  color: #92400E;
}

.alert-error {
  background: rgba(220, 38, 38, 0.1);
  border-color: #DC2626;
  color: #991B1B;
}

/* ---------- Grid System ---------- */
.grid {
  display: grid;
  gap: 1.5rem;
}

.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }

@media (max-width: 768px) {
  .grid-cols-2, .grid-cols-3 {
    grid-template-columns: 1fr;
  }
}

/* ---------- Utilities ---------- */
.hidden { display: none !important; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.font-mono { font-family: 'Courier New', monospace; }
.uppercase { text-transform: uppercase; }

.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-4 { margin-bottom: 1rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }

/* ---------- Responsive ---------- */
@media (max-width: 640px) {
  body {
    font-size: 14px;
  }
  
  .card {
    padding: 1rem;
  }
  
  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.8125rem;
  }
  
  h1 { font-size: 1.875rem; }
  h2 { font-size: 1.5rem; }
  h3 { font-size: 1.25rem; }

   /* Header Responsive */
  .main-header {
    padding: var(--spacing-md) 0;
  }
  
  .header-container {
    padding: 0 var(--spacing-md);
  }
  
  .header-brand {
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
  }
  
  .logo-wrapper {
    width: 32px;
    height: 32px;
    font-size: 16px;
  }
  
  .brand-title {
    font-size: 20px;
  }
  
  .brand-subtitle {
    font-size: 11px;
  }
  
  .header-info {
    gap: var(--spacing-sm);
  }
  
  .info-item {
    font-size: 12px;
  }
  
  /* Navigation Responsive */
  .nav-container {
    padding: 0 var(--spacing-sm);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }
  
  .tab-btn {
    padding: 12px 16px;
    font-size: 14px;
    white-space: nowrap;
  }
  
  .tab-btn span {
    display: none;
  }
  
  .tab-btn i {
    font-size: 20px;
  }
  
  /* Main Content Responsive */
  main {
    padding: var(--spacing-md) 0;
  }
  
  main.max-w-5xl {
    padding: var(--spacing-md);
    margin: 0;
    border-radius: 0;
  }
  
  /* Tables Responsive */
  table {
    font-size: 12px;
  }
  
  th, td {
    padding: 12px 8px;
  }
}
/* ---------- Focus & Accessibility ---------- */
*:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

button:focus-visible,
.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.tab-btn:focus-visible {
  outline: none;
  box-shadow: inset 0 -2px 0 var(--color-accent);
}

/* Skip to content link for screen readers */
.skip-link {
  position: absolute;
  top: -40px;
  left: 0;
  background: var(--color-accent);
  color: white;
  padding: 8px 16px;
  text-decoration: none;
  border-radius: 0 0 var(--border-radius) 0;
}

.skip-link:focus {
  top: 0;
}
/* ---------- Smooth Interactions ---------- */
.card,
.btn,
.badge,
input,
select,
textarea {
  will-change: transform;
}

/* Subtle scale on active */
.btn:active:not(:disabled) {
  transform: scale(0.97);
}

.card-icon {
  transition: var(--transition);
}

.card:hover .card-icon {
  transform: scale(1.05);
}

/* Badge hover */
.badge {
  transition: var(--transition);
  cursor: default;
}

/* Table row smooth highlight */
tbody tr {
  position: relative;
}

tbody tr::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}

tbody tr:hover::after {
  transform: scaleX(1);
}
/* ---------- Print Styles ---------- */
@media print {
  body {
    background: white;
  }
  
  header, .tab-btn, .btn {
    display: none !important;
  }
  
  .card {
    box-shadow: none;
    page-break-inside: avoid;
  }
}
/* ---------- Empty States ---------- */
.empty-state {
  text-align: center;
  padding: var(--spacing-xl);
  color: var(--color-secondary);
}

.empty-state-icon {
  font-size: 64px;
  color: var(--color-border);
  margin-bottom: var(--spacing-md);
}

.empty-state h3 {
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.empty-state p {
  color: var(--color-secondary);
  margin-bottom: var(--spacing-md);
}
/* ---------- Loading Overlay ---------- */
#loading-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(4px);
  z-index: 9999;
  justify-content: center;
  align-items: center;
  flex-direction: column;
}

#loading-overlay.active {
  display: flex;
}

.spinner {
  border: 4px solid var(--color-border);
  border-top: 4px solid var(--color-accent);
  border-radius: 50%;
  width: 50px;
  height: 50px;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

.loading-text {
  color: var(--color-primary);
  margin-top: var(--spacing-md);
  text-align: center;
}

.loading-text h3 {
  font-size: var(--font-size-lg);
  font-weight: 600;
  margin-bottom: var(--spacing-xs);
}

.loading-text p {
  font-size: 14px;
  color: var(--color-secondary);
}