/* ==========================================================================
   SAGE AI — Styles
   Brand: Charcoal #1C1C1E | Steel Blue #2E4057 | Sage Green #6B8F71
          Amber #E8A838 | Warm White #F5F2EB | Light Gray #D4D0C8
   Typography: Inter (Bold 700 headings, Regular 400 body)
   ========================================================================== */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  font-weight: 400;
  color: #1C1C1E;
  background-color: #F5F2EB;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Typography --- */
h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  color: #F5F2EB;
}

h2 {
  font-size: clamp(1.5rem, 3.5vw, 1.75rem);
  font-weight: 700;
  line-height: 1.25;
  color: #1C1C1E;
}

h3 {
  font-size: clamp(1.125rem, 2vw, 1.25rem);
  font-weight: 700;
  line-height: 1.3;
  color: #1C1C1E;
}

h4 {
  font-size: 0.875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: #D4D0C8;
  margin-bottom: 12px;
}

p {
  font-size: 1rem;
  line-height: 1.7;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 6px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  border: 2px solid transparent;
}

.btn-primary {
  background-color: #E8A838;
  color: #1C1C1E;
  border-color: #E8A838;
}
.btn-primary:hover {
  background-color: #d4952e;
  border-color: #d4952e;
}

.btn-secondary {
  background-color: transparent;
  color: #F5F2EB;
  border-color: #F5F2EB;
}
.btn-secondary:hover {
  background-color: rgba(245, 242, 235, 0.1);
}

.btn-outline {
  background-color: transparent;
  color: #2E4057;
  border-color: #2E4057;
}
.btn-outline:hover {
  background-color: #2E4057;
  color: #F5F2EB;
}

.btn-outline-light {
  color: #F5F2EB;
  border-color: #F5F2EB;
}
.btn-outline-light:hover {
  background-color: rgba(245, 242, 235, 0.15);
  color: #F5F2EB;
}

.btn-full {
  width: 100%;
}

/* --- Navigation --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(28, 28, 30, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(107, 143, 113, 0.15);
  transition: box-shadow 0.3s ease;
}
.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(0,0,0,0.15);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.logo {
  font-size: 1.375rem;
  letter-spacing: 0.04em;
}
.logo-sage {
  font-weight: 700;
  color: #F5F2EB;
}
.logo-ai {
  font-weight: 400;
  color: #F5F2EB;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  color: #D4D0C8;
  font-size: 0.875rem;
  font-weight: 400;
  transition: color 0.2s ease;
}
.nav-links a:hover,
.nav-links a.active {
  color: #F5F2EB;
}
.nav-cta {
  background-color: #E8A838;
  color: #1C1C1E !important;
  padding: 8px 20px;
  border-radius: 5px;
  font-weight: 600 !important;
}
.nav-cta:hover {
  background-color: #d4952e;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #F5F2EB;
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* --- Hero (Home) --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: #1C1C1E;
  overflow: hidden;
  padding-top: 64px;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('hero.png') center center / cover no-repeat;
  z-index: 0;
}

.hero-bg-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(28, 28, 30, 0.92) 0%,
    rgba(28, 28, 30, 0.82) 35%,
    rgba(28, 28, 30, 0.55) 65%,
    rgba(28, 28, 30, 0.35) 100%
  );
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 80px 0 60px;
}

.hero-label {
  font-size: 0.8125rem;
  color: #6B8F71;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 20px;
  font-weight: 600;
}

.hero h1 {
  margin-bottom: 24px;
  max-width: 600px;
}

.hero-sub {
  color: #D4D0C8;
  font-size: 1.25rem;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 60px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  max-width: 700px;
  padding-top: 40px;
  border-top: 1px solid rgba(107, 143, 113, 0.2);
}

.stat-number {
  display: block;
  font-size: 1.75rem;
  font-weight: 700;
  color: #E8A838;
  margin-bottom: 4px;
}
.stat-label {
  font-size: 0.8125rem;
  color: #D4D0C8;
  line-height: 1.4;
}

/* --- Page Hero (subpages) --- */
.page-hero {
  background-color: #2E4057;
  padding: 120px 0 60px;
}
.page-hero h1 {
  max-width: 700px;
}
.page-hero .section-label {
  margin-bottom: 16px;
}
.page-hero-sub {
  color: #D4D0C8;
  font-size: 1.125rem;
  margin-top: 16px;
  max-width: 560px;
}

.page-hero-dark {
  background-color: #1C1C1E;
}

/* --- Problem Section (Home) --- */
.problem-section {
  background-color: #1C1C1E;
  padding: 80px 0;
}
.problem-section h2 {
  color: #F5F2EB;
  max-width: 700px;
  margin-bottom: 20px;
}
.problem-section p {
  color: #D4D0C8;
  max-width: 700px;
  font-size: 1.0625rem;
  line-height: 1.8;
}

/* --- Five Value Pillars (Home) --- */
.pillars {
  padding: 96px 0;
  background-color: #F5F2EB;
}

.pillars-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.pillar-card {
  display: block;
  background: linear-gradient(180deg, rgba(245,242,235,0.6) 0%, rgba(212,208,200,0.2) 100%);
  border: 1px solid #D4D0C8;
  border-radius: 10px;
  padding: 32px 24px;
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}
.pillar-card:hover {
  border-color: #6B8F71;
  box-shadow: 0 4px 24px rgba(46, 64, 87, 0.08);
  transform: translateY(-2px);
}

.pillar-icon {
  margin-bottom: 16px;
}

.pillar-card h3 {
  margin-bottom: 8px;
  color: #2E4057;
}

.pillar-card p {
  color: #2E4057;
  font-size: 0.9375rem;
  opacity: 0.8;
}

/* --- Section Headers --- */
.section-header {
  text-align: center;
  max-width: 600px;
  margin: 0 auto 48px;
}
.section-header p {
  color: #2E4057;
  margin-top: 12px;
  font-size: 1.0625rem;
}

.section-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: #6B8F71;
  margin-bottom: 12px;
}

/* --- Services / Pricing --- */
.services {
  padding: 96px 0;
  background-color: #F5F2EB;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.service-card {
  position: relative;
  background: linear-gradient(180deg, rgba(245,242,235,0.6) 0%, rgba(212,208,200,0.2) 100%);
  border: 1px solid #D4D0C8;
  border-radius: 10px;
  padding: 32px 24px;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.service-card:hover {
  border-color: #6B8F71;
  box-shadow: 0 4px 24px rgba(46, 64, 87, 0.08);
}

.service-card.featured {
  border-color: #E8A838;
  background: linear-gradient(180deg, rgba(232,168,56,0.06) 0%, rgba(245,242,235,0.8) 100%);
}

.service-badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: #E8A838;
  color: #1C1C1E;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 4px 14px;
  border-radius: 20px;
  white-space: nowrap;
}

.service-icon {
  margin-bottom: 16px;
}

.service-label {
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #6B8F71;
  margin-bottom: 8px;
}

.service-card h3 {
  margin-bottom: 12px;
}

.service-price {
  font-size: 1.125rem;
  font-weight: 700;
  color: #2E4057;
  margin-bottom: 4px;
}
.service-price span {
  font-size: 0.8125rem;
  font-weight: 400;
  color: #6B8F71;
}

.service-target {
  font-size: 0.8125rem;
  color: #2E4057;
  opacity: 0.7;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid #D4D0C8;
}

.service-features {
  flex: 1;
  margin-bottom: 16px;
}
.service-features li {
  font-size: 0.875rem;
  color: #2E4057;
  padding: 6px 0 6px 20px;
  position: relative;
  line-height: 1.5;
}
.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 13px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: #6B8F71;
}

.service-pillars {
  font-size: 0.8125rem;
  color: #6B8F71;
  margin-bottom: 20px;
}

/* --- Pillar Detail (Services page) --- */
.pillar-detail {
  padding: 80px 0;
  background-color: #F5F2EB;
}
.pillar-detail.alt {
  background-color: rgba(46, 64, 87, 0.04);
}

.pillar-detail-grid {
  display: grid;
  grid-template-columns: 80px 1fr;
  gap: 32px;
  align-items: start;
}

.pillar-detail-icon {
  padding-top: 4px;
}

.pillar-detail-content .section-label {
  margin-bottom: 8px;
}

.pillar-detail-content h2 {
  margin-bottom: 8px;
}

.pillar-tagline {
  font-size: 1.125rem;
  font-weight: 600;
  color: #E8A838;
  margin-bottom: 20px;
}

.pillar-detail-content p {
  color: #2E4057;
  margin-bottom: 16px;
}

.pillar-example {
  background: rgba(107, 143, 113, 0.08);
  border-left: 3px solid #6B8F71;
  padding: 16px 20px;
  border-radius: 0 8px 8px 0;
  font-size: 0.9375rem;
}

.pillar-tiers {
  font-size: 0.8125rem;
  color: #6B8F71;
  font-weight: 600;
}

/* --- How It Works --- */
.how-it-works {
  padding: 96px 0;
  background-color: #1C1C1E;
}
.how-it-works .section-header h2 {
  color: #F5F2EB;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.step-card {
  text-align: center;
  padding: 32px 24px;
}

.step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: #E8A838;
  color: #1C1C1E;
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 20px;
}

.step-card h3 {
  color: #F5F2EB;
  margin-bottom: 12px;
  font-size: 1.25rem;
}

.step-card p {
  color: #D4D0C8;
  font-size: 0.9375rem;
}

/* --- About / Founder Story --- */
.about-story {
  padding: 96px 0;
  background-color: #F5F2EB;
}

.about-story-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 56px;
  align-items: start;
}

.about-headshot {
  border-radius: 12px;
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  object-position: top;
  position: sticky;
  top: 88px;
}

.about-image-placeholder {
  background: linear-gradient(135deg, #2E4057 0%, #1C1C1E 100%);
  border-radius: 12px;
  aspect-ratio: 3/4;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  max-height: 480px;
  position: sticky;
  top: 88px;
}

.about-family-photo {
  margin: 24px 0;
  border-radius: 10px;
  overflow: hidden;
  background-color: #1C1C1E;
}
.about-family-photo img {
  width: 100%;
  border-radius: 10px 10px 0 0;
}
.about-family-caption {
  display: block;
  padding: 10px 16px;
  font-size: 0.8125rem;
  color: #D4D0C8;
  font-style: italic;
}

.about-initials {
  font-size: 4rem;
  font-weight: 700;
  color: #E8A838;
  letter-spacing: 0.05em;
}

.about-image-label {
  color: #D4D0C8;
  font-size: 0.875rem;
  font-weight: 400;
}

.about-content p {
  color: #2E4057;
  margin-bottom: 20px;
  font-size: 1.0625rem;
  line-height: 1.8;
}

.story-highlight {
  font-size: 1.25rem;
  font-weight: 700;
  color: #2E4057;
  padding: 24px;
  background: rgba(232, 168, 56, 0.08);
  border-left: 4px solid #E8A838;
  border-radius: 0 8px 8px 0;
  margin-top: 8px;
}

/* --- Aviation Bridge --- */
.aviation-bridge {
  padding: 80px 0;
  background-color: #1C1C1E;
}
.aviation-bridge h2 {
  color: #F5F2EB;
  margin-bottom: 12px;
}
.bridge-intro {
  color: #D4D0C8;
  font-size: 1.0625rem;
  margin-bottom: 40px;
  max-width: 600px;
}

.bridge-table-wrap {
  overflow-x: auto;
}

.bridge-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}
.bridge-table th {
  background-color: #2E4057;
  color: #F5F2EB;
  padding: 14px 20px;
  text-align: left;
  font-weight: 700;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.bridge-table td {
  padding: 14px 20px;
  color: #D4D0C8;
  border-bottom: 1px solid rgba(107, 143, 113, 0.15);
}
.bridge-table tr:hover td {
  background-color: rgba(46, 64, 87, 0.3);
}
.bridge-table td:last-child {
  color: #E8A838;
  font-weight: 600;
}

/* --- Credentials --- */
.credentials {
  padding: 80px 0;
  background-color: #F5F2EB;
}
.credentials h2 {
  margin-bottom: 32px;
}

.credentials-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 700px;
}

.credential-item {
  display: flex;
  align-items: center;
  gap: 12px;
}
.credential-item span {
  font-size: 0.9375rem;
  color: #2E4057;
}

/* --- The Name --- */
.the-name {
  padding: 60px 0;
  background-color: rgba(46, 64, 87, 0.04);
}

.name-card {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 40px;
}
.name-card h3 {
  color: #2E4057;
  margin-bottom: 12px;
}
.name-card p {
  color: #2E4057;
  font-size: 0.9375rem;
  line-height: 1.7;
  opacity: 0.8;
}

/* --- Social Proof --- */
.social-proof {
  padding: 80px 0;
  background-color: #2E4057;
}

.proof-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

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

.proof-number {
  display: block;
  font-size: 3rem;
  font-weight: 700;
  color: #E8A838;
  margin-bottom: 12px;
}
.proof-item p {
  color: #D4D0C8;
  font-size: 0.9375rem;
  line-height: 1.6;
}
.proof-item p strong {
  color: #F5F2EB;
}

/* --- Footer CTA --- */
.footer-cta {
  padding: 80px 0;
  background-color: #2E4057;
}
.footer-cta-content {
  text-align: center;
}
.footer-cta-content h2 {
  color: #F5F2EB;
  margin-bottom: 12px;
}
.footer-cta-sub {
  color: #D4D0C8;
  margin-bottom: 24px;
}
.footer-cta-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 24px;
}

/* --- Contact Page --- */
.contact-section {
  padding: 80px 0;
  background-color: #F5F2EB;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 16px;
}
.contact-info p {
  color: #2E4057;
  margin-bottom: 16px;
  font-size: 1.0625rem;
}

.contact-details {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-detail-item {
  display: flex;
  align-items: center;
  gap: 12px;
}
.contact-detail-item span {
  font-size: 0.9375rem;
  color: #2E4057;
  font-weight: 500;
}

.bilingual-badge {
  display: inline-block;
  margin-top: 24px;
  background: rgba(107, 143, 113, 0.1);
  border: 1px solid #6B8F71;
  border-radius: 6px;
  padding: 8px 16px;
}
.bilingual-badge span {
  font-size: 0.875rem;
  font-weight: 600;
  color: #6B8F71;
}

.calendly-placeholder {
  background: linear-gradient(180deg, #2E4057 0%, #1C1C1E 100%);
  border-radius: 12px;
  padding: 48px 32px;
}
.calendly-placeholder-inner {
  text-align: center;
}
.calendly-placeholder-inner h3 {
  color: #F5F2EB;
  margin-top: 20px;
  margin-bottom: 12px;
}
.calendly-placeholder-inner p {
  color: #D4D0C8;
  font-size: 0.9375rem;
  margin-bottom: 24px;
}

/* --- Workshop Page --- */
.workshop-overview {
  padding: 80px 0;
  background-color: #F5F2EB;
}

.workshop-overview-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.workshop-content h2 {
  margin-bottom: 12px;
  margin-top: 32px;
}
.workshop-content h2:first-child {
  margin-top: 0;
}
.workshop-content p {
  color: #2E4057;
  font-size: 1.0625rem;
  margin-bottom: 8px;
}

.workshop-details-card {
  background: linear-gradient(180deg, #2E4057 0%, #1C1C1E 100%);
  border-radius: 12px;
  padding: 36px 32px;
  position: sticky;
  top: 88px;
}
.workshop-details-card h3 {
  color: #F5F2EB;
  margin-bottom: 24px;
}

.workshop-detail {
  display: flex;
  justify-content: space-between;
  padding: 12px 0;
  border-bottom: 1px solid rgba(107, 143, 113, 0.15);
}
.workshop-detail strong {
  color: #D4D0C8;
  font-size: 0.875rem;
  font-weight: 600;
}
.workshop-detail span {
  color: #F5F2EB;
  font-size: 0.875rem;
}
.workshop-details-card .btn {
  margin-top: 24px;
}

.workshop-curriculum {
  padding: 80px 0;
  background-color: #1C1C1E;
}
.workshop-curriculum .section-header h2 {
  color: #F5F2EB;
}
.workshop-curriculum .section-header p {
  color: #D4D0C8;
}

.curriculum-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.curriculum-card {
  background: linear-gradient(180deg, rgba(46, 64, 87, 0.5) 0%, rgba(28, 28, 30, 0.8) 100%);
  border: 1px solid rgba(107, 143, 113, 0.2);
  border-radius: 10px;
  padding: 28px 24px;
  transition: border-color 0.2s ease;
}
.curriculum-card:hover {
  border-color: #6B8F71;
}
.curriculum-card h3 {
  color: #E8A838;
  font-size: 1rem;
  margin-bottom: 12px;
}
.curriculum-card p {
  color: #D4D0C8;
  font-size: 0.875rem;
  line-height: 1.6;
}

.bilingual-section {
  padding: 60px 0;
  background-color: #F5F2EB;
}
.bilingual-card {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
  padding: 32px;
  background: rgba(107, 143, 113, 0.08);
  border-radius: 12px;
  border: 1px solid rgba(107, 143, 113, 0.2);
}
.bilingual-card h3 {
  color: #6B8F71;
  margin-bottom: 8px;
}
.bilingual-card p {
  color: #2E4057;
  font-size: 0.9375rem;
}

/* --- HVAC Page --- */
.hvac-pains {
  padding: 80px 0;
  background-color: #F5F2EB;
}
.hvac-pains h2 {
  text-align: center;
  margin-bottom: 40px;
}

.pains-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 900px;
  margin: 0 auto;
}

.pain-card {
  background: linear-gradient(180deg, rgba(245,242,235,0.6) 0%, rgba(212,208,200,0.2) 100%);
  border: 1px solid #D4D0C8;
  border-radius: 10px;
  padding: 28px 24px;
}
.pain-card h3 {
  color: #2E4057;
  margin-bottom: 8px;
}
.pain-card p {
  color: #2E4057;
  font-size: 0.9375rem;
  opacity: 0.8;
}

.hvac-solutions {
  padding: 80px 0;
  background-color: #1C1C1E;
}
.hvac-solutions h2 {
  color: #F5F2EB;
  text-align: center;
  margin-bottom: 40px;
}

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.solution-card {
  background: linear-gradient(180deg, rgba(46, 64, 87, 0.5) 0%, rgba(28, 28, 30, 0.8) 100%);
  border: 1px solid rgba(107, 143, 113, 0.2);
  border-radius: 10px;
  padding: 28px 24px;
  transition: border-color 0.2s ease;
}
.solution-card:hover {
  border-color: #6B8F71;
}
.solution-card .section-label {
  margin-bottom: 8px;
}
.solution-card h3 {
  color: #F5F2EB;
  margin-bottom: 12px;
  font-size: 1rem;
}
.solution-card p {
  color: #D4D0C8;
  font-size: 0.875rem;
  line-height: 1.6;
}

.aviation-parallel {
  padding: 80px 0;
  background-color: #F5F2EB;
}

.parallel-card {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
  padding: 48px;
  background: rgba(46, 64, 87, 0.06);
  border-radius: 12px;
  border: 1px solid rgba(46, 64, 87, 0.15);
}
.parallel-card h2 {
  margin-bottom: 16px;
  color: #2E4057;
}
.parallel-card p {
  color: #2E4057;
  font-size: 1.0625rem;
  opacity: 0.8;
}

.hvac-roi {
  padding: 80px 0;
  background-color: #2E4057;
}
.hvac-roi .section-header h2 {
  color: #F5F2EB;
}

.roi-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.roi-card {
  text-align: center;
}
.roi-number {
  display: block;
  font-size: 2.5rem;
  font-weight: 700;
  color: #E8A838;
  margin-bottom: 8px;
}
.roi-card p {
  color: #D4D0C8;
  font-size: 0.875rem;
  line-height: 1.5;
}

/* --- Language Toggle --- */
.lang-toggle {
  background: rgba(107, 143, 113, 0.2);
  border: 1px solid #6B8F71;
  border-radius: 4px;
  color: #F5F2EB;
  font-family: 'Inter', sans-serif;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 6px 12px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.lang-toggle:hover {
  background: rgba(107, 143, 113, 0.4);
  border-color: #E8A838;
  color: #E8A838;
}

/* --- Quiz App (Lovable-style full-page quiz) --- */
.quiz-app {
  min-height: 100vh;
  background-color: #F5F2EB;
}

.quiz-screen {
  display: none;
}
.quiz-screen.active {
  display: flex;
}

/* Landing */
.quiz-landing {
  min-height: 100vh;
  align-items: center;
  justify-content: center;
}
.quiz-landing-content {
  text-align: center;
  max-width: 520px;
  padding: 24px;
}
.quiz-landing-content .logo {
  display: inline-block;
  margin-bottom: 32px;
}
.quiz-landing-content .logo-sage {
  color: #2E4057;
}
.quiz-landing-content .logo-ai {
  color: #2E4057;
}
.quiz-landing-content h1 {
  color: #2E4057;
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  margin-bottom: 16px;
}
.quiz-landing-content p {
  color: #6B8F71;
  font-size: 1.0625rem;
  margin-bottom: 32px;
}
.btn-quiz-start {
  padding: 16px 48px;
  font-size: 1.0625rem;
  border-radius: 40px;
}
.quiz-tagline {
  margin-top: 32px;
  color: #6B8F71;
  font-size: 0.875rem;
}

/* Top bar */
.quiz-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
}
.quiz-topbar .logo-sage {
  color: #2E4057;
}
.quiz-topbar .logo-ai {
  color: #2E4057;
}
.quiz-back-btn {
  background: none;
  border: none;
  font-family: 'Inter', sans-serif;
  font-size: 0.875rem;
  color: #2E4057;
  cursor: pointer;
  padding: 4px 8px;
  transition: color 0.2s ease;
}
.quiz-back-btn:hover {
  color: #E8A838;
}

/* Progress */
.quiz-progress-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0 24px;
  margin-bottom: 4px;
}
.quiz-step-text {
  font-size: 0.8125rem;
  color: #2E4057;
  font-weight: 600;
}
.quiz-step-pct {
  font-size: 0.8125rem;
  color: #D4D0C8;
  font-weight: 600;
}
.quiz-progress {
  height: 4px;
  background-color: #D4D0C8;
  margin: 0 24px;
  border-radius: 2px;
  overflow: hidden;
}
.quiz-progress-bar {
  height: 100%;
  background-color: #E8A838;
  border-radius: 2px;
  transition: width 0.3s ease;
}

/* Question area */
.quiz-question-area {
  max-width: 600px;
  margin: 0 auto;
  padding: 60px 24px 40px;
}
.quiz-step {
  display: none;
}
.quiz-step.active {
  display: block;
}
.quiz-step h2 {
  color: #2E4057;
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  margin-bottom: 28px;
}

/* Option buttons */
.quiz-options {
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.quiz-opt-btn {
  width: 100%;
  text-align: left;
  padding: 16px 20px;
  background: transparent;
  border: 1px solid #D4D0C8;
  border-radius: 10px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9375rem;
  color: #2E4057;
  cursor: pointer;
  transition: all 0.2s ease;
}
.quiz-opt-btn:hover {
  border-color: #E8A838;
  background: rgba(232, 168, 56, 0.05);
}
.quiz-opt-btn.selected {
  border-color: #E8A838;
  background: rgba(232, 168, 56, 0.08);
}

/* Email capture */
.quiz-capture {
  min-height: 100vh;
  flex-direction: column;
}
.quiz-capture-content {
  max-width: 480px;
  margin: 0 auto;
  padding: 60px 24px 40px;
}
.quiz-capture-content h2 {
  color: #2E4057;
  font-size: clamp(1.5rem, 3.5vw, 1.75rem);
  margin-bottom: 8px;
}
.quiz-capture-content > p {
  color: #6B8F71;
  margin-bottom: 28px;
}
.quiz-capture-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.quiz-capture-form input {
  width: 100%;
  padding: 14px 18px;
  font-family: 'Inter', sans-serif;
  font-size: 0.9375rem;
  color: #1C1C1E;
  background-color: transparent;
  border: 1px solid #D4D0C8;
  border-radius: 10px;
  transition: border-color 0.2s ease;
}
.quiz-capture-form input::placeholder {
  color: #999;
}
.quiz-capture-form input:focus {
  outline: none;
  border-color: #E8A838;
}
.quiz-capture-form .btn {
  border-radius: 40px;
  margin-top: 4px;
}
.quiz-capture-note {
  margin-top: 20px;
  font-size: 0.8125rem;
  color: #999;
  line-height: 1.6;
}

/* Thank you */
.quiz-thankyou {
  min-height: 100vh;
  align-items: center;
  justify-content: center;
}
.quiz-thankyou-content {
  text-align: center;
  max-width: 520px;
  padding: 24px;
}
.quiz-thankyou-content h2 {
  color: #2E4057;
  margin-bottom: 16px;
}
.quiz-thankyou-content p {
  color: #6B8F71;
  font-size: 0.9375rem;
  margin-bottom: 12px;
}
.quiz-results-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  margin-top: 24px;
  flex-wrap: wrap;
}

/* --- Footer --- */
.footer {
  background-color: #1C1C1E;
  padding: 64px 0 0;
}

.footer-content {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  display: inline-block;
  margin-bottom: 12px;
}

.footer-tagline {
  color: #D4D0C8;
  font-size: 0.9375rem;
  margin-bottom: 8px;
}
.footer-entity {
  color: #6B8F71;
  font-size: 0.8125rem;
  margin-bottom: 4px;
}
.footer-location {
  color: #6B8F71;
  font-size: 0.8125rem;
}

.footer-links ul li {
  margin-bottom: 8px;
}
.footer-links ul li a {
  font-size: 0.875rem;
  color: #D4D0C8;
  transition: color 0.2s ease;
}
.footer-links ul li a:hover {
  color: #E8A838;
}

.footer-bottom {
  border-top: 1px solid rgba(107, 143, 113, 0.15);
  padding: 20px 0;
}
.footer-bottom p {
  font-size: 0.75rem;
  color: #6B8F71;
  text-align: center;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .pillars-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .roi-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-content {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }
  .nav-links {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background-color: rgba(28, 28, 30, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
    transform: translateY(-110%);
    transition: transform 0.3s ease;
  }
  .nav-links.open {
    transform: translateY(0);
  }
  .nav-cta {
    text-align: center;
    width: 100%;
    display: block;
    padding: 12px 20px;
  }

  .hero-stats {
    grid-template-columns: 1fr;
    gap: 20px;
    max-width: 300px;
  }

  .services-grid {
    grid-template-columns: 1fr;
  }

  .pillars-grid {
    grid-template-columns: 1fr;
  }

  .solutions-grid {
    grid-template-columns: 1fr;
  }

  .curriculum-grid {
    grid-template-columns: 1fr;
  }

  .pains-grid {
    grid-template-columns: 1fr;
  }

  .proof-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .about-story-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .about-headshot {
    max-height: 400px;
    position: static;
  }
  .about-image-placeholder {
    max-height: 300px;
    aspect-ratio: 16/9;
    position: static;
  }

  .pillar-detail-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .workshop-overview-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .workshop-details-card {
    position: static;
  }

  .roi-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-content {
    grid-template-columns: 1fr;
    gap: 32px;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
    text-align: center;
  }

  .footer-cta-actions {
    flex-direction: column;
    align-items: center;
  }
  .footer-cta-actions .btn {
    width: 100%;
  }

  .quiz-question-area {
    padding: 40px 16px 32px;
  }
  .quiz-capture-content {
    padding: 40px 16px 32px;
  }
  .quiz-results-actions {
    flex-direction: column;
    align-items: center;
  }
  .quiz-results-actions .btn {
    width: 100%;
  }

  .roi-grid {
    grid-template-columns: 1fr;
  }
}

/* --- Fade-in Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.services-grid .fade-in:nth-child(2) { transition-delay: 0.08s; }
.services-grid .fade-in:nth-child(3) { transition-delay: 0.16s; }
.services-grid .fade-in:nth-child(4) { transition-delay: 0.24s; }

.pillars-grid .fade-in:nth-child(2) { transition-delay: 0.08s; }
.pillars-grid .fade-in:nth-child(3) { transition-delay: 0.12s; }
.pillars-grid .fade-in:nth-child(4) { transition-delay: 0.16s; }
.pillars-grid .fade-in:nth-child(5) { transition-delay: 0.2s; }

.proof-grid .fade-in:nth-child(2) { transition-delay: 0.1s; }
.proof-grid .fade-in:nth-child(3) { transition-delay: 0.2s; }

.solutions-grid .fade-in:nth-child(2) { transition-delay: 0.08s; }
.solutions-grid .fade-in:nth-child(3) { transition-delay: 0.12s; }
.solutions-grid .fade-in:nth-child(4) { transition-delay: 0.16s; }
.solutions-grid .fade-in:nth-child(5) { transition-delay: 0.2s; }

.curriculum-grid .fade-in:nth-child(2) { transition-delay: 0.08s; }
.curriculum-grid .fade-in:nth-child(3) { transition-delay: 0.12s; }
.curriculum-grid .fade-in:nth-child(4) { transition-delay: 0.16s; }
.curriculum-grid .fade-in:nth-child(5) { transition-delay: 0.2s; }