:root {
  --bg: #0a1628;
  --bg-card: #111d32;
  --bg-input: #0d1829;
  --border: #1e3a5f;
  --text: #e8f4f8;
  --text-muted: #8ba4b8;
  --accent: #4ecdc4;
  --accent-dark: #0d4f5c;
  --coral: #ff6b6b;
  --ok: #22c55e;
  --ok-bg: rgba(34, 197, 94, 0.15);
  --low: #ef4444;
  --low-bg: rgba(239, 68, 68, 0.15);
  --high: #ef4444;
  --high-bg: rgba(239, 68, 68, 0.15);
  --borderline: #eab308;
  --borderline-bg: rgba(234, 179, 8, 0.15);
  --radius: 10px;
  --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

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

body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

code {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.85em;
  background: var(--bg-input);
  padding: 0.15em 0.4em;
  border-radius: 4px;
}

/* Layout */
.app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.header {
  background: linear-gradient(135deg, var(--accent-dark) 0%, #0a2830 100%);
  padding: 1.5rem 2rem;
  border-bottom: 2px solid var(--accent);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-controls {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.header-account {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.header-account .user-chip {
  font-size: 0.85rem;
  color: var(--text);
}

.header-account .btn {
  padding: 0.4rem 0.9rem;
  font-size: 0.8rem;
}

.lang-switch {
  display: inline-flex;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-input);
}

.lang-btn {
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-family: inherit;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.4rem 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.lang-btn:hover {
  color: var(--text);
}

.lang-btn.active {
  background: var(--accent);
  color: #03242a;
}

.logo {
  width: 48px;
  height: 48px;
}

/* Chip putih berisi logo (logo didesain untuk latar terang) */
.logo-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  background: #ffffff;
  border-radius: 12px;
  padding: 7px 14px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.28);
}

.logo-chip img {
  height: 34px;
  width: auto;
  display: block;
}

.logo-chip .logo-divider {
  width: 1px;
  height: 28px;
  background: #d7e0e8;
  flex: 0 0 auto;
}

@media (max-width: 520px) {
  .logo-chip img {
    height: 26px;
  }
}

/* Profil */
.profile-meta {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 1rem;
}

.profile-meta-row {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.profile-meta-row .k {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
}

.profile-meta-row .v {
  font-size: 0.95rem;
}

.header h1 {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.subtitle {
  color: var(--accent);
  font-weight: 500;
  font-size: 0.95rem;
}

.period {
  color: var(--text-muted);
  font-size: 0.85rem;
}

.nav {
  display: flex;
  gap: 0.25rem;
  padding: 0.75rem 2rem;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}

.nav-link {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0.5rem 1rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.2s;
  border: none;
  background: transparent;
  font-family: inherit;
  cursor: pointer;
}

.nav-link:hover {
  color: var(--text);
  background: rgba(78, 205, 196, 0.1);
}

.nav-link.active {
  color: var(--accent);
  background: rgba(78, 205, 196, 0.15);
}

.main {
  flex: 1;
  padding: 2rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.footer {
  text-align: center;
  padding: 1rem;
  color: var(--text-muted);
  font-size: 0.8rem;
  border-top: 1px solid var(--border);
}

/* Page */
.page h2 {
  font-size: 1.75rem;
  margin-bottom: 0.25rem;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.page-header p {
  color: var(--text-muted);
}

.header-actions {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Hero & Modules */
.hero {
  margin-bottom: 2rem;
}

.hero h2 {
  margin-bottom: 0.5rem;
}

.hero p {
  color: var(--text-muted);
  max-width: 700px;
}

.module-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
  margin-bottom: 2rem;
}

.module-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-decoration: none;
  color: inherit;
  transition: all 0.2s;
  display: block;
  cursor: pointer;
}

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

.module-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 0.75rem;
}

.module-card h3 {
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.module-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 0.75rem;
}

.module-params {
  font-size: 0.75rem;
  color: var(--accent);
  font-family: 'JetBrains Mono', monospace;
}

.info-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 0.75rem;
}

.legend-item {
  padding: 0.35rem 0.75rem;
  border-radius: 6px;
  font-size: 0.85rem;
}

/* Cards */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
}

.card h3 {
  font-size: 1.1rem;
  margin-bottom: 1rem;
}

.card-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.card-toolbar h3 {
  margin-bottom: 0;
}

.toolbar-controls {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

/* Forms */
.form {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.form-row {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.form-row label {
  flex: 1;
  min-width: 120px;
}

.date-row label {
  flex: 0 1 100px;
}

label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

input,
select,
textarea {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.6rem 0.75rem;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--accent);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

.hint {
  color: var(--text-muted);
  font-size: 0.8rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.2rem;
  border: none;
  border-radius: 6px;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--accent);
  color: var(--bg);
}

.btn-primary:hover:not(:disabled) {
  background: #3dbdb5;
}

.btn-secondary {
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover:not(:disabled) {
  border-color: var(--accent);
}

.btn-success {
  background: var(--ok);
  color: white;
}

.btn-success:hover {
  background: #16a34a;
}

.btn-danger {
  background: var(--low);
  color: white;
}

.btn-danger:hover {
  background: #dc2626;
}

.btn-block {
  width: 100%;
  justify-content: center;
  margin-top: 0.5rem;
}

/* Period tabs */
.period-tabs {
  display: flex;
  gap: 0.25rem;
}

.tab {
  padding: 0.4rem 0.8rem;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-muted);
  font-size: 0.8rem;
  cursor: pointer;
  font-family: inherit;
}

.tab.active {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

/* Tables */
.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9rem;
}

th,
td {
  padding: 0.65rem 0.85rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

td.empty {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem;
}

.row-dead {
  opacity: 0.6;
}

/* Status colors */
.status-ok {
  background: var(--ok-bg) !important;
  color: var(--ok);
}

.status-low,
.status-high {
  background: var(--low-bg) !important;
  color: var(--low);
}

.status-borderline {
  background: var(--borderline-bg) !important;
  color: var(--borderline);
}

.status-value {
  font-weight: 600;
  font-family: 'JetBrains Mono', monospace;
}

.status-label {
  display: block;
  font-size: 0.7rem;
  opacity: 0.8;
  margin-top: 0.15rem;
}

.unit {
  font-size: 0.8em;
  opacity: 0.7;
}

.badge {
  display: inline-block;
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Stats */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  text-align: center;
}

.stat-value {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  font-family: 'JetBrains Mono', monospace;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Charts */
.chart-container {
  height: 350px;
  position: relative;
}

.chart-empty {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

/* Param list */
.param-list {
  list-style: none;
}

.param-list li {
  padding: 0.4rem 0;
  font-size: 0.9rem;
}

/* Import zone */
.import-zone {
  border: 2px dashed var(--border);
  text-align: center;
}

.import-zone:hover {
  border-color: var(--accent);
}

.import-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

.import-status {
  margin-top: 1rem;
  color: var(--accent);
  font-weight: 500;
}

/* Growth summary */
.growth-summary-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
}

.growth-summary-card {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 1rem;
  cursor: pointer;
  transition: border-color 0.2s;
}

.growth-summary-card:hover {
  border-color: var(--accent);
}

.growth-summary-card code {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.75rem;
}

.growth-value {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.9rem;
}

.growth-delta {
  font-size: 0.8rem;
  font-weight: 600;
}

.growth-delta.positive {
  color: var(--ok);
}

.growth-delta.negative {
  color: var(--low);
}

/* Toast / loading */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: var(--bg-card);
  border: 1px solid var(--accent);
  color: var(--text);
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  z-index: 1000;
  font-size: 0.9rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s, transform 0.25s;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-4px);
}

.toast.error {
  border-color: var(--low);
  color: #fca5a5;
}

.loading {
  text-align: center;
  padding: 3rem;
  color: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
  .main {
    padding: 1rem;
  }

  .header {
    padding: 1rem;
  }

  .nav {
    padding: 0.5rem 1rem;
  }
}