@import url('https://fonts.googleapis.com/css2?family=Lora:ital,wght@0,400;0,500;0,600;0,700;1,400&family=IBM+Plex+Mono:wght@400;500&family=IBM+Plex+Sans:wght@300;400;500;600;700&display=swap');

:root {
  --bg-canvas: #faf8f5; /* Warm Sand */
  --bg-card: #f2efe9;
  --bg-card-hover: #e9e5db;
  
  --border-solid: #1a1a1a;
  --border-muted: #d5d1c5;
  
  --text-primary: #1a1a1a;
  --text-secondary: #4a4a46;
  --text-muted: #7c7a70;
  
  --color-accent: #2d5a27; /* Deep Forest Green for technical highlights */
  --color-alert: #9c3a3a; /* Deep Red for warnings */
  
  --font-serif: 'Lora', Georgia, serif;
  --font-sans: 'IBM Plex Sans', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  border-radius: 0 !important; /* Force completely sharp corners everywhere */
  box-shadow: none !important; /* Kill all drop shadows */
}

body {
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  overflow-x: hidden;
  padding: 0;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  color: var(--text-primary);
  font-weight: 600;
  line-height: 1.25;
}

p {
  color: var(--text-secondary);
}

a {
  color: var(--text-primary);
  text-decoration: underline;
}

a:hover {
  color: var(--color-accent);
}

/* Layout Utilities */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

header {
  border-bottom: 2px solid var(--border-solid);
  background: var(--bg-canvas);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 70px;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 700;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

nav ul {
  display: flex;
  gap: 2.5rem;
  list-style: none;
}

nav a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
}

nav a:hover, nav a.active {
  color: var(--text-primary);
  text-decoration: underline;
}

.btn-header {
  border: 1px solid var(--border-solid);
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  background: transparent;
  color: var(--text-primary);
  cursor: pointer;
}

.btn-header:hover {
  background: var(--border-solid);
  color: var(--bg-canvas);
}

.nav-toggle-input {
  display: none;
}

.nav-toggle-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  background: transparent;
  border: none;
}

.nav-toggle-btn span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text-primary);
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle-input:checked ~ .nav-toggle-btn span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle-input:checked ~ .nav-toggle-btn span:nth-child(2) {
  opacity: 0;
}

.nav-toggle-input:checked ~ .nav-toggle-btn span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Hero Section */
.hero {
  padding: 6rem 0 5rem;
  border-bottom: 1px solid var(--border-muted);
}

.hero-badge {
  display: inline-block;
  border: 1px solid var(--border-solid);
  padding: 0.25rem 0.75rem;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-size: 3rem;
  max-width: 850px;
  margin-bottom: 1.5rem;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 700px;
  margin-bottom: 2.5rem;
}

.hero-ctas {
  display: flex;
  gap: 1rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.75rem;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.95rem;
  text-decoration: none;
}

.btn-primary {
  background: var(--border-solid);
  color: var(--bg-canvas);
  border: 1px solid var(--border-solid);
}

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

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

.btn-secondary:hover {
  background: var(--bg-card);
}

/* Sections General */
section {
  padding: 5rem 0;
  border-bottom: 1px solid var(--border-muted);
}

.section-header {
  margin-bottom: 3.5rem;
  max-width: 800px;
}

.section-subtitle {
  color: var(--text-muted);
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
  display: block;
}

.section-title {
  font-size: 2.2rem;
  margin-bottom: 1rem;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* Column Systems (No Bento, No 3-cards) */
.col-layout-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
}

.list-block {
  border-top: 1px solid var(--border-solid);
  padding: 2rem 0;
  display: grid;
  grid-template-columns: 0.4fr 1fr;
  gap: 2rem;
}

.list-block h3 {
  font-size: 1.25rem;
}

.list-block-content p {
  font-size: 0.95rem;
  color: var(--text-secondary);
}

/* Technical Sandbox Blocks (Replaces Terminal) */
.sandbox-container {
  border: 1px solid var(--border-solid);
  background: #ffffff;
}

.sandbox-header {
  background: var(--bg-card);
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--border-solid);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.sandbox-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 500;
}

.sandbox-tabs {
  display: flex;
  background: var(--bg-card);
  border-bottom: 1px solid var(--border-solid);
}

.sandbox-tab {
  padding: 0.5rem 1rem;
  font-size: 0.8rem;
  font-family: var(--font-sans);
  color: var(--text-secondary);
  border: none;
  border-right: 1px solid var(--border-solid);
  background: transparent;
  cursor: pointer;
}

.sandbox-tab.active {
  background: #ffffff;
  color: var(--text-primary);
  border-bottom: 1px solid transparent;
  margin-bottom: -1px;
}

.sandbox-body {
  padding: 1.25rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
  background: #ffffff;
  overflow-y: auto;
  overflow-x: auto;
  max-height: 400px;
}

.tech-table {
  min-width: 560px;
}

.sandbox-body pre {
  white-space: pre-wrap;
  word-wrap: break-word;
}

/* Standard HTML Technical Tables */
.tech-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.5rem;
}

.tech-table th, .tech-table td {
  padding: 0.6rem 0.8rem;
  text-align: left;
  border: 1px solid var(--border-solid);
}

.tech-table th {
  background: var(--bg-card);
  font-weight: 600;
}

.citation-tag {
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.1rem 0.4rem;
  text-transform: uppercase;
  border: 1px solid var(--border-solid);
  display: inline-block;
}

.citation-tag.missing {
  background: #fdf2f2;
  color: var(--color-alert);
}

.citation-tag.present {
  background: #f0fdf4;
  color: var(--color-accent);
}

/* Interactive Calculator Styles (Non-Vibecoded) */
.calc-container {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 3rem;
  border: 1px solid var(--border-solid);
  background: #ffffff;
}

.calc-panel-left {
  padding: 2.5rem;
  border-right: 1px solid var(--border-solid);
}

.calc-panel-right {
  padding: 2.5rem;
  background: var(--bg-card);
}

.calc-questions-list {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.calc-q-group label {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 0.75rem;
  display: block;
}

.calc-q-options {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.calc-q-opt {
  border: 1px solid var(--border-muted);
  background: #ffffff;
  padding: 0.85rem 1rem;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.calc-q-opt:hover {
  background: var(--bg-canvas);
}

.calc-q-opt.selected {
  border-color: var(--border-solid);
  background: var(--bg-card-hover);
}

.calc-q-opt input[type="radio"] {
  margin-top: 0.25rem;
  accent-color: var(--text-primary);
}

.calc-q-opt h5 {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  margin-bottom: 0.1rem;
}

.calc-q-opt p {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Linear Score Indicator */
.linear-score-bar-container {
  background: var(--bg-canvas);
  border: 1px solid var(--border-solid);
  height: 16px;
  width: 100%;
  margin: 1.5rem 0 2rem;
  position: relative;
}

.linear-score-bar-fill {
  background: var(--border-solid);
  height: 100%;
  width: 20%;
  transition: width 0.3s ease;
}

.linear-score-bar-fill.danger { background: var(--color-alert); }
.linear-score-bar-fill.warning { background: #b45309; }
.linear-score-bar-fill.success { background: var(--color-accent); }

.score-stats {
  display: flex;
  justify-content: space-between;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 600;
}

.recs-box {
  background: #ffffff;
  border: 1px solid var(--border-solid);
  padding: 1.5rem;
  margin-top: 1.5rem;
}

.recs-box h5 {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  color: var(--text-primary);
}

.recs-box ul {
  list-style-type: square;
  padding-left: 1.25rem;
}

.recs-box li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

/* Case Study Content layout */
.case-study-content {
  display: none;
}

.case-study-content.active {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 3rem;
  margin-top: 2rem;
}

.case-study-nav {
  display: flex;
  border-bottom: 1px solid var(--border-solid);
}

.case-nav-btn {
  background: transparent;
  border: none;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-serif);
  font-size: 1rem;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.case-nav-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--border-solid);
  font-weight: 600;
}

.case-nav-btn:hover {
  color: var(--text-primary);
}

.metrics-list {
  margin: 1.5rem 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.metric-row {
  border-bottom: 1px solid var(--border-muted);
  padding-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
}

.metric-label {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.metric-value {
  font-family: var(--font-mono);
  font-weight: 600;
  font-size: 0.95rem;
}

.metric-value.danger { color: var(--color-alert); }
.metric-value.warning { color: #b45309; }
.metric-value.success { color: var(--color-accent); }

/* Flat Pricing Section */
.pricing-box {
  border: 2px solid var(--border-solid);
  background: #ffffff;
  padding: 3rem;
  max-width: 700px;
  margin: 0 auto;
}

.pricing-title {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  margin-bottom: 1rem;
  text-align: center;
}

.founding-badge {
  display: block;
  width: fit-content;
  margin: 0 auto 1.25rem;
  padding: 0.4rem 0.9rem;
  border: 1px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.pricing-cost {
  font-size: 2.5rem;
  font-family: var(--font-serif);
  font-weight: 700;
  text-align: center;
  margin-bottom: 0.75rem;
}

.pricing-founding-note {
  font-size: 0.85rem;
  color: var(--text-muted);
  text-align: center;
  max-width: 480px;
  margin: 0 auto 2rem;
  line-height: 1.5;
}

.pricing-features {
  list-style-type: square;
  padding-left: 1.5rem;
  margin-bottom: 2.5rem;
}

.pricing-features li {
  margin-bottom: 0.75rem;
  color: var(--text-secondary);
}

/* Contact & Policy Areas */
.contact-form-container {
  max-width: 600px;
  margin: 0 auto;
}

.form-field {
  margin-bottom: 1.25rem;
}

.form-field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  margin-bottom: 0.4rem;
  color: var(--text-primary);
}

.input-text, .select-control, .textarea-control {
  width: 100%;
  border: 1px solid var(--border-solid);
  background: #ffffff;
  padding: 0.65rem 0.85rem;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
}

.input-text:focus, .select-control:focus, .textarea-control:focus {
  outline: 1px solid var(--color-accent);
}

.textarea-control {
  min-height: 120px;
}

/* Tabs for Policies */
.policy-tabs {
  display: flex;
  justify-content: center;
  border-bottom: 1px solid var(--border-muted);
  margin-bottom: 1.5rem;
}

.policy-tab-btn {
  background: transparent;
  border: none;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-sans);
  font-size: 0.85rem;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
}

.policy-tab-btn.active {
  color: var(--text-primary);
  border-bottom-color: var(--border-solid);
  font-weight: 600;
}

.policy-pane {
  display: none;
  font-size: 0.85rem;
  color: var(--text-secondary);
  max-height: 250px;
  overflow-y: auto;
  border: 1px solid var(--border-muted);
  padding: 1.5rem;
  background: #ffffff;
}

.policy-pane.active {
  display: block;
}

.policy-pane h4 {
  font-size: 1rem;
  margin-bottom: 0.5rem;
  margin-top: 1rem;
}

.policy-pane h4:first-child {
  margin-top: 0;
}

/* Modal Dialog */
.modal-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(26, 26, 26, 0.75);
  z-index: 1000;
  align-items: center;
  justify-content: center;
}

.modal-dialog-box {
  background: #ffffff;
  border: 2px solid var(--border-solid);
  width: 90%;
  max-width: 500px;
  padding: 2.5rem;
  position: relative;
  text-align: left;
}

.modal-dialog-close {
  position: absolute;
  top: 0.75rem;
  right: 1.25rem;
  font-size: 1.5rem;
  color: var(--text-secondary);
  cursor: pointer;
}

/* Concept Visual Redesign */
.concept-panel-visual {
  border: 1px solid var(--border-solid);
  background: #ffffff;
  padding: 1.5rem;
  min-height: 350px;
}

.rag-block-ins {
  border: 1px solid var(--border-solid);
  padding: 0.85rem;
  margin-bottom: 1rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.rag-block-ins.bad {
  border-left: 4px solid var(--color-alert);
  background: #fdf2f2;
}

.rag-block-ins.good {
  border-left: 4px solid var(--color-accent);
  background: #f0fdf4;
}

.concept-btn-selector {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.concept-btn-opt {
  background: #ffffff;
  border: 1px solid var(--border-muted);
  padding: 1.25rem;
  text-align: left;
  cursor: pointer;
}

.concept-btn-opt.active {
  border-color: var(--border-solid);
  background: var(--bg-card);
}

.concept-btn-opt h3 {
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
}

/* Footer style */
footer {
  border-top: 2px solid var(--border-solid);
  padding: 3rem 0;
  background: var(--bg-card);
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-copy-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 1.5rem;
  text-align: center;
}

/* Responsiveness */
@media (max-width: 868px) {
  .hero h1 { font-size: 2.25rem; }
  .col-layout-2, .case-study-content.active, .calc-container {
    grid-template-columns: minmax(0, 1fr);
    gap: 2rem;
  }
  .col-layout-2 > *, .case-study-content.active > *, .calc-container > * {
    min-width: 0;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 1.25rem;
  }

  .footer-inner nav ul {
    flex-wrap: wrap;
    row-gap: 0.5rem;
  }
  .calc-panel-left {
    border-right: none;
    border-bottom: 1px solid var(--border-solid);
  }

  .btn-header {
    display: none;
  }

  .nav-toggle-btn {
    display: flex;
  }

  header nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    width: 100%;
    background: var(--bg-canvas);
    border-bottom: 2px solid var(--border-solid);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
  }

  header nav ul {
    flex-direction: column;
    gap: 0;
    padding: 0.5rem 2rem 1rem;
  }

  header nav ul li {
    border-bottom: 1px solid var(--border-muted);
  }

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

  header nav a {
    display: block;
    padding: 0.9rem 0;
  }

  .nav-toggle-input:checked ~ nav {
    max-height: 400px;
  }
}

/* ===== Blog List (blog.html) ===== */

.blog-list {
  max-width: 720px;
  margin: 0 auto;
}

.blog-card {
  padding: 2.5rem 0;
  border-bottom: 1px solid var(--border-muted);
}

.blog-card:first-child {
  padding-top: 0;
}

.blog-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  margin-bottom: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.blog-meta .category {
  color: var(--color-accent);
  font-weight: 500;
}

.blog-card h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.35;
  margin-bottom: 0.5rem;
}

.blog-card h2 a {
  color: inherit;
  text-decoration: none;
}

.blog-card p {
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 0.75rem;
}

.read-more {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-bottom: 1px solid var(--text-primary);
  padding-bottom: 2px;
}

/* ===== Blog Post (individual articles) ===== */

.blog-post {
  max-width: 680px;
  margin: 0 auto;
}

.blog-post-header {
  margin-bottom: 3rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-muted);
}

.blog-post-header h1 {
  font-family: var(--font-serif);
  font-size: 2.25rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.25;
  margin-bottom: 0.5rem;
}

.blog-post-header .subtitle {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  color: var(--text-secondary);
  font-weight: 300;
}

.blog-post-body h2 {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
}

.blog-post-body h3 {
  font-family: var(--font-sans);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-top: 1.75rem;
  margin-bottom: 0.5rem;
}

.blog-post-body p {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.25rem;
}

.blog-post-body ul,
.blog-post-body ol {
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
}

.blog-post-body li {
  margin-bottom: 0.4rem;
}

.blog-post-body code {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  background: var(--bg-card);
  padding: 0.15rem 0.4rem;
  border: 1px solid var(--border-muted);
}

.blog-post-body pre {
  background: var(--bg-card);
  border: 1px solid var(--border-solid);
  padding: 1.25rem;
  overflow-x: auto;
  margin-bottom: 1.25rem;
}

.blog-post-body pre code {
  background: none;
  border: none;
  padding: 0;
}

.blog-post-body blockquote {
  border-left: 3px solid var(--text-primary);
  padding-left: 1.25rem;
  margin: 1.5rem 0;
  font-style: italic;
  color: var(--text-secondary);
}

.blog-post-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border-muted);
}

.blog-post-footer a {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-primary);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}