/* Perumahan Subsidi FLPP — style.css */
:root {
  --primary: #1b5e20;
  --accent: #a5d6a7;
  --bg: #f1f8f1;
  --text: #0a1f0a;
  --light: #c8e6c9;
  --border: #81c784;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  line-height: 1.6;
  color: var(--text);
  background-color: #fff;
}

/* Demo Bar */
.demo-bar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--primary);
  color: #fff;
  padding: 8px 16px;
  font-size: 12px;
  text-align: center;
  box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.demo-bar a {
  color: #fff;
  text-decoration: underline;
  margin: 0 4px;
}

.demo-bar a:hover {
  opacity: 0.8;
}

body {
  padding-top: 32px;
}

/* Navigation */
header {
  background-color: #fff;
  border-bottom: 1px solid var(--border);
  padding: 12px 16px;
  position: sticky;
  top: 32px;
  z-index: 100;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
}

.nav-toggle {
  display: none;
}

.nav-label {
  display: none;
  cursor: pointer;
  font-size: 24px;
  color: var(--primary);
}

nav ul {
  list-style: none;
  display: flex;
  gap: 0;
}

nav li {
  flex: 1;
}

nav a {
  display: block;
  padding: 12px 16px;
  color: var(--text);
  text-decoration: none;
  text-align: center;
  border-right: 1px solid var(--border);
  font-size: 14px;
  font-weight: 500;
  transition: background-color 0.2s;
}

nav li:last-child a {
  border-right: none;
}

nav a:hover,
nav a.active {
  background-color: var(--accent);
  color: #fff;
}

/* Mobile Navigation */
@media (max-width: 640px) {
  .nav-label {
    display: block;
  }

  nav ul {
    display: none;
    flex-direction: column;
    gap: 0;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: #fff;
    border-top: 1px solid var(--border);
    width: 100%;
  }

  nav li {
    flex: none;
  }

  nav a {
    border-right: none;
    border-bottom: 1px solid var(--border);
    text-align: left;
    padding: 16px;
  }

  nav li:last-child a {
    border-bottom: none;
  }

  .nav-toggle:checked ~ ul {
    display: flex;
  }
}

/* Main Content */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 16px;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, var(--primary) 0%, #2e7d32 100%);
  color: #fff;
  padding: 40px 24px;
  border-radius: 8px;
  text-align: center;
  margin-bottom: 40px;
}

.hero h1 {
  font-size: 28px;
  margin-bottom: 12px;
  line-height: 1.2;
}

.hero p {
  font-size: 16px;
  margin-bottom: 24px;
  opacity: 0.95;
}

.cta-btn {
  display: inline-block;
  background-color: var(--accent);
  color: var(--text);
  padding: 12px 28px;
  border-radius: 4px;
  text-decoration: none;
  font-weight: 600;
  font-size: 14px;
  transition: background-color 0.2s;
}

.cta-btn:hover {
  background-color: #7cb342;
}

/* Cards */
.card {
  background-color: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 24px;
  margin-bottom: 20px;
  transition: transform 0.2s, box-shadow 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 16px rgba(27,94,32,0.12);
}

.card h2 {
  color: var(--primary);
  font-size: 20px;
  margin-bottom: 12px;
}

.card h3 {
  color: var(--primary);
  font-size: 18px;
  margin-bottom: 8px;
}

.card p {
  color: #333;
  margin-bottom: 12px;
}

.card-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-bottom: 40px;
}

@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .card-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Typography */
h1 {
  font-size: 32px;
  margin-bottom: 16px;
  color: var(--primary);
}

h2 {
  font-size: 24px;
  margin-bottom: 16px;
  color: var(--primary);
}

h3 {
  font-size: 18px;
  margin-bottom: 12px;
  color: var(--primary);
}

p {
  margin-bottom: 12px;
  color: #333;
}

ul, ol {
  margin-left: 20px;
  margin-bottom: 12px;
}

li {
  margin-bottom: 8px;
  color: #333;
}

/* Forms */
form {
  background-color: var(--bg);
  padding: 24px;
  border-radius: 8px;
  max-width: 600px;
  margin: 24px 0;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  margin-bottom: 8px;
  color: var(--primary);
  font-weight: 500;
  font-size: 14px;
}

input,
textarea,
select {
  width: 100%;
  padding: 12px;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-family: inherit;
  font-size: 14px;
  color: var(--text);
  background-color: #fff;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(27,94,32,0.1);
}

textarea {
  resize: vertical;
  min-height: 120px;
}

button {
  background-color: var(--primary);
  color: #fff;
  padding: 12px 28px;
  border: none;
  border-radius: 4px;
  cursor: pointer;
  font-size: 14px;
  font-weight: 600;
  transition: background-color 0.2s;
}

button:hover {
  background-color: #2e7d32;
}

/* Specifications Table */
.specs-table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  background-color: #fff;
}

.specs-table th,
.specs-table td {
  padding: 12px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.specs-table th {
  background-color: var(--accent);
  color: var(--text);
  font-weight: 600;
}

.specs-table tr:hover {
  background-color: var(--bg);
}

/* Simulator */
.simulator-output {
  background-color: var(--bg);
  border: 1px solid var(--border);
  padding: 20px;
  border-radius: 8px;
  margin-top: 24px;
  display: none;
}

.simulator-output.active {
  display: block;
}

.result-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}

.result-item:last-child {
  border-bottom: none;
}

.result-label {
  font-weight: 600;
  color: var(--primary);
}

.result-value {
  font-size: 18px;
  font-weight: 600;
  color: #2e7d32;
}

/* Footer */
footer {
  background-color: var(--bg);
  border-top: 1px solid var(--border);
  padding: 32px 16px;
  margin-top: 60px;
  text-align: center;
}

footer p {
  margin-bottom: 8px;
  font-size: 14px;
}

footer a {
  color: var(--primary);
  text-decoration: none;
}

footer a:hover {
  text-decoration: underline;
}

/* Spacing Utilities */
.mt-4 {
  margin-top: 32px;
}

.mb-4 {
  margin-bottom: 32px;
}

.text-center {
  text-align: center;
}

.text-muted {
  color: #666;
  font-size: 14px;
}

/* SVG Icons */
.icon {
  display: inline-block;
  width: 24px;
  height: 24px;
  vertical-align: middle;
  margin-right: 8px;
}

/* Responsive */
@media (max-width: 640px) {
  h1 {
    font-size: 24px;
  }

  h2 {
    font-size: 20px;
  }

  .hero {
    padding: 32px 16px;
  }

  .hero h1 {
    font-size: 22px;
  }

  main {
    padding: 16px;
  }

  .card-grid {
    gap: 16px;
  }

  .specs-table {
    font-size: 13px;
  }

  .specs-table th,
  .specs-table td {
    padding: 8px;
  }
}