/* Hallmark · pre-emit critique: P5 H5 E5 S5 R5 V5 */
@import url('./tokens.css');

/* CSS Reset & Non-Negotiables */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  width: 100%;
  min-height: 100%;
  overflow-x: clip; /* Hallmark gate 34 */
  background-color: var(--bg-canvas);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Headings: Hallmark Gate 38a (Strictly Roman, No Italic Headers) */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-primary);
  overflow-wrap: anywhere;
  min-width: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

input, select, textarea {
  font-family: inherit;
  font-size: 0.95rem;
}

/* Container & Layout */
.container {
  width: 100%;
  max-width: 1240px;
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
}

@media (min-width: 768px) {
  .container {
    padding-left: 32px;
    padding-right: 32px;
  }
}

/* Utilities */
.mono {
  font-family: var(--font-mono);
}

.text-amber {
  color: var(--color-safety-amber);
}

.text-cyan {
  color: var(--color-telemetry-cyan);
}

.text-emerald {
  color: var(--color-qa-emerald);
}

.text-orange {
  color: var(--color-signal-orange);
}

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

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 12px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-family: var(--font-mono);
  background: rgba(245, 158, 11, 0.12);
  color: var(--color-safety-amber);
  border: 1px solid rgba(245, 158, 11, 0.28);
}

.badge-cyan {
  background: rgba(6, 182, 212, 0.12);
  color: var(--color-telemetry-cyan);
  border-color: rgba(6, 182, 212, 0.28);
}

.badge-emerald {
  background: rgba(16, 185, 129, 0.12);
  color: var(--color-qa-emerald);
  border-color: rgba(16, 185, 129, 0.28);
}

.badge-pulse::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: currentColor;
  box-shadow: 0 0 8px currentColor;
  animation: pulse-ring 2s infinite ease-in-out;
}

@keyframes pulse-ring {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

/* Navigation Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(9, 13, 18, 0.88);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.brand-icon {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--color-safety-amber), var(--color-signal-orange));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #090d12;
  font-weight: 900;
  font-family: var(--font-mono);
  box-shadow: 0 2px 8px rgba(245, 158, 11, 0.3);
}

.brand-text span {
  color: var(--color-safety-amber);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 24px;
  list-style: none;
}

@media (min-width: 960px) {
  .nav-links {
    display: flex;
  }
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  position: relative;
  padding: 6px 0;
}

.nav-links a:hover {
  color: var(--text-primary);
}

.nav-links a.active {
  color: var(--color-safety-amber);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.lang-toggle {
  display: flex;
  align-items: center;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  padding: 3px;
  background: var(--bg-surface);
}

.lang-btn {
  padding: 4px 8px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 600;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.lang-btn.active {
  background: var(--bg-surface-elevated);
  color: var(--color-safety-amber);
  border: 1px solid var(--border-strong);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 9px 18px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  white-space: nowrap; /* Hallmark gate 49 */
}

.btn-primary {
  background: var(--color-safety-amber);
  color: #090d12;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(245, 158, 11, 0.25);
}

.btn-primary:hover {
  background: #fbbf24;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.4);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-surface-elevated);
  color: var(--text-primary);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover {
  background: #202b3a;
  border-color: var(--border-strong);
  color: #ffffff;
}

.mobile-menu-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  color: var(--text-primary);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
}

@media (min-width: 960px) {
  .mobile-menu-btn {
    display: none;
  }
}

/* Mobile Navigation Drawer */
.mobile-drawer {
  display: none;
  flex-direction: column;
  padding: 20px;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
  gap: 16px;
}

.mobile-drawer.open {
  display: flex;
}

.mobile-drawer a {
  padding: 8px 0;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}

/* Hero Section */
.hero-section {
  position: relative;
  padding: 60px 0 80px 0;
  background: radial-gradient(circle at 50% 0%, rgba(245, 158, 11, 0.08) 0%, rgba(9, 13, 18, 0) 70%);
  border-bottom: 1px solid var(--border-subtle);
}

@media (min-width: 768px) {
  .hero-section {
    padding: 80px 0 100px 0;
  }
}

.hero-content {
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.hero-eyebrow {
  margin-bottom: 20px;
}

.hero-title {
  font-size: 2.3rem;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

@media (min-width: 640px) {
  .hero-title {
    font-size: 3.2rem;
  }
}

@media (min-width: 1024px) {
  .hero-title {
    font-size: 4rem;
  }
}

.hero-title em {
  font-style: normal; /* Hallmark gate 38a */
  color: var(--color-safety-amber);
  position: relative;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 740px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .hero-subtitle {
    font-size: 1.25rem;
  }
}

.hero-ctas {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 48px;
}

/* Hero Telemetry HUD */
.hero-hud {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-lg), 0 0 30px rgba(0, 0, 0, 0.5);
  margin-top: 20px;
  text-align: left;
  position: relative;
  overflow: hidden;
}

.hud-header {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border-subtle);
  margin-bottom: 20px;
}

.hud-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-secondary);
}

.hud-status {
  display: flex;
  align-items: center;
  gap: 12px;
}

.hud-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr)); /* Hallmark gate 50 */
  gap: 16px;
}

@media (min-width: 640px) {
  .hud-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1024px) {
  .hud-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.hud-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
}

.hud-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.hud-val {
  font-size: 1.5rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.hud-unit {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.hud-delta {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  margin-top: 4px;
}

/* Proven Metrics Proof Bar */
.proof-section {
  padding: 40px 0;
  background: var(--bg-surface);
  border-bottom: 1px solid var(--border-subtle);
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  text-align: center;
}

@media (min-width: 768px) {
  .proof-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

.proof-item h4 {
  font-size: 2.2rem;
  font-family: var(--font-mono);
  color: var(--color-safety-amber);
  margin-bottom: 4px;
}

.proof-item p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* Section Shared Headers */
.section {
  padding: 72px 0;
  border-bottom: 1px solid var(--border-subtle);
}

@media (min-width: 768px) {
  .section {
    padding: 96px 0;
  }
}

.section-header {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 56px auto;
}

.section-tag {
  margin-bottom: 14px;
}

.section-title {
  font-size: 1.9rem;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

@media (min-width: 768px) {
  .section-title {
    font-size: 2.6rem;
  }
}

.section-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* The Origin Story Section */
.story-container {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}

@media (min-width: 960px) {
  .story-container {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
    align-items: start;
  }
}

.story-narrative {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.story-lead {
  font-size: 1.2rem;
  color: var(--text-primary);
  font-weight: 500;
  line-height: 1.7;
  border-left: 3px solid var(--color-safety-amber);
  padding-left: 18px;
}

.story-p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
}

.story-contrast-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 12px;
}

.contrast-title {
  font-size: 0.9rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.contrast-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: 16px;
}

.contrast-col {
  padding: 16px;
  border-radius: var(--radius-md);
}

.contrast-old {
  background: rgba(244, 63, 94, 0.06);
  border: 1px solid rgba(244, 63, 94, 0.2);
}

.contrast-new {
  background: rgba(16, 185, 129, 0.06);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

.contrast-col h5 {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  margin-bottom: 8px;
}

.contrast-old h5 { color: var(--color-alert-rose); }
.contrast-new h5 { color: var(--color-qa-emerald); }

.contrast-col ul {
  list-style: none;
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.contrast-col li::before {
  content: "— ";
  opacity: 0.5;
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 28px;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 8px;
  bottom: 8px;
  left: 8px;
  width: 2px;
  background: var(--border-medium);
}

.timeline-item {
  position: relative;
  margin-bottom: 32px;
}

.timeline-item:last-child {
  margin-bottom: 0;
}

.timeline-dot {
  position: absolute;
  left: -28px;
  top: 4px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-canvas);
  border: 2px solid var(--color-safety-amber);
  display: flex;
  align-items: center;
  justify-content: center;
}

.timeline-dot::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-safety-amber);
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-safety-amber);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.timeline-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.timeline-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* Four Pillars of AI Architecture */
.tech-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 24px;
}

@media (min-width: 768px) {
  .tech-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.tech-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.tech-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.tech-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.tech-icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--border-medium);
}

.tech-title {
  font-size: 1.35rem;
  margin-bottom: 12px;
}

.tech-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 24px;
  flex-grow: 1;
}

.tech-specs {
  border-top: 1px solid var(--border-subtle);
  padding-top: 16px;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.tech-specs li {
  display: flex;
  justify-content: space-between;
}

.tech-specs li span:last-child {
  color: var(--text-primary);
  font-weight: 600;
}

/* Interactive Concrete Mix Simulator */
.simulator-wrapper {
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 24px;
  box-shadow: var(--shadow-lg);
}

@media (min-width: 960px) {
  .simulator-wrapper {
    padding: 36px;
  }
}

.sim-controls-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}

@media (min-width: 960px) {
  .sim-controls-grid {
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  }
}

.sim-input-panel {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.sim-group-title {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 8px;
}

.grade-selector {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
}

.grade-btn {
  padding: 10px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-medium);
  background: var(--bg-surface-elevated);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  text-align: center;
  transition: all var(--transition-fast);
}

.grade-btn:hover {
  border-color: var(--border-strong);
  color: var(--text-primary);
}

.grade-btn.active {
  background: var(--color-safety-amber);
  color: #090d12;
  border-color: var(--color-safety-amber);
}

.slider-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.slider-label-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9rem;
}

.slider-name {
  color: var(--text-primary);
  font-weight: 500;
}

.slider-val {
  font-family: var(--font-mono);
  font-weight: 700;
  color: var(--color-safety-amber);
  background: var(--bg-surface-elevated);
  padding: 2px 8px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  font-size: 0.85rem;
}

.custom-range {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  background: var(--bg-surface-elevated);
  border-radius: 3px;
  outline: none;
  cursor: pointer;
}

.custom-range::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-safety-amber);
  cursor: pointer;
  box-shadow: 0 0 10px rgba(245, 158, 11, 0.4);
  transition: transform var(--transition-fast);
}

.custom-range::-webkit-slider-thumb:hover {
  transform: scale(1.15);
}

/* Simulator Output Dashboard */
.sim-output-panel {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sim-output-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border-subtle);
}

.sim-results-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.sim-metric-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
}

.sim-metric-label {
  font-size: 0.75rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.sim-metric-val {
  font-size: 1.7rem;
  font-weight: 700;
  font-family: var(--font-mono);
  color: var(--text-primary);
  display: flex;
  align-items: baseline;
  gap: 4px;
}

.sim-metric-sub {
  font-size: 0.75rem;
  margin-top: 4px;
  font-family: var(--font-mono);
}

/* Slump Cone Visualizer */
.slump-cone-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.cone-graphic {
  width: 90px;
  height: 90px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* Thermal Hydration Canvas */
.chart-container {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  margin-top: 32px;
}

.chart-header {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.chart-legend {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8rem;
  font-family: var(--font-mono);
}

.legend-item {
  display: flex;
  align-items: center;
  gap: 6px;
}

.legend-line {
  width: 14px;
  height: 3px;
  border-radius: 1px;
}

.chart-canvas-wrap {
  width: 100%;
  height: 280px;
  position: relative;
}

canvas#hydrationChart {
  width: 100%;
  height: 100%;
}

/* Live Plant #3 Terminal Feed */
.terminal-window {
  background: #070a0e;
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.terminal-topbar {
  background: #0d1218;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red { background: #ef4444; }
.dot-yellow { background: #f59e0b; }
.dot-green { background: #10b981; }

.terminal-body {
  padding: 18px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  max-height: 360px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.log-entry {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  opacity: 0.95;
}

.log-time {
  color: var(--text-muted);
  flex-shrink: 0;
}

.log-tag {
  padding: 0 4px;
  border-radius: 2px;
  font-weight: 600;
  flex-shrink: 0;
}

.log-msg {
  color: var(--text-primary);
  word-break: break-all;
}

/* ROI Calculator Section */
.calc-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  background: var(--bg-surface);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 32px;
}

@media (min-width: 960px) {
  .calc-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  }
}

.calc-inputs {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.calc-results {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 18px;
  justify-content: center;
}

.calc-stat-box {
  border-bottom: 1px solid var(--border-subtle);
  padding-bottom: 14px;
}

.calc-stat-box:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.calc-stat-val {
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  color: var(--color-safety-amber);
}

.calc-stat-lbl {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* Case Studies Carousel / Cards */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 1fr));
  gap: 24px;
}

@media (min-width: 768px) {
  .cases-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.case-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: all var(--transition-fast);
}

.case-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-2px);
}

.case-meta {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-safety-amber);
  text-transform: uppercase;
}

.case-card h4 {
  font-size: 1.2rem;
}

.case-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.case-stat {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-qa-emerald);
  padding-top: 12px;
  border-top: 1px solid var(--border-subtle);
  margin-top: auto;
}

/* Modal Dialog */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 20px;
}

.modal-overlay.open {
  display: flex;
}

.modal-box {
  background: var(--bg-surface);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  max-width: 540px;
  width: 100%;
  padding: 32px;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.modal-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1.2rem;
}

.modal-close:hover {
  color: var(--text-primary);
  background: var(--bg-surface-elevated);
}

.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 6px;
  color: var(--text-primary);
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  background: var(--bg-input);
  border: 1px solid var(--border-medium);
  color: var(--text-primary);
  outline: none;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-safety-amber);
  box-shadow: 0 0 0 2px var(--color-safety-amber-glow);
}

/* Toast */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1100;
  background: var(--bg-surface-elevated);
  border: 1px solid var(--color-qa-emerald);
  color: var(--text-primary);
  padding: 14px 20px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  display: none;
  align-items: center;
  gap: 12px;
  font-size: 0.9rem;
  font-family: var(--font-mono);
}

.toast.show {
  display: flex;
  animation: slide-in 0.3s ease-out;
}

@keyframes slide-in {
  from { transform: translateY(100%); opacity: 0; }
  to { transform: translateY(0); opacity: 1; }
}

/* Footer */
.site-footer {
  background: #06090d;
  border-top: 1px solid var(--border-subtle);
  padding: 60px 0 32px 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

@media (min-width: 768px) {
  .footer-top {
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
  }
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 14px;
  max-width: 340px;
}

.footer-col h5 {
  font-size: 0.85rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-col a:hover {
  color: var(--color-safety-amber);
}

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
}