:root {
  --bg-primary: #FFFEF2;
  --bg-secondary: #F3F2E7;
  --bg-card: #EDECE1;
  --text-primary: #191918;
  --text-secondary: #6B6B64;
  --text-muted: #BAB9B0;
  --accent: #FCAA2D;
  --accent-hover: #E89A1F;
  --border: #D8D7CE;
  --border-light: #E8E7DE;
  --radius: 12px;
  --radius-sm: 8px;
  --font-heading: 'Instrument Serif', Georgia, serif;
  --font-mono: 'Space Mono', 'Courier New', monospace;
  --font-body: 'Inter', system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 120px 0;
  position: relative;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--accent);
  margin-bottom: 20px;
}

.section-label::before {
  content: '';
  display: block;
  width: 10px;
  height: 10px;
  background: var(--accent);
  border-radius: 2px;
}

/* ================================================
   NAVIGATION
   ================================================ */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 32px;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: #fffef2e6;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border-light);
}

.nav-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-weight: 400;
  font-size: 1.25rem;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-link {
  text-decoration: none;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  transition: color 0.2s;
  position: relative;
}

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

.nav-cta-wrap {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ================================================
   BUTTONS
   ================================================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s ease;
}

.btn-arrow::after {
  content: '\2197';
  font-size: 1rem;
  line-height: 1;
}

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

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

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

.btn-secondary:hover {
  border-color: var(--text-secondary);
  background: var(--bg-secondary);
}

.btn-sm {
  padding: 10px 20px;
  font-size: 0.6875rem;
}

.btn-full {
  width: 100%;
}

/* ================================================
   PAGE HEADERS (inner pages)
   ================================================ */

.page-header-section {
  padding-top: 160px;
  padding-bottom: 80px;
}

.page-header {
  max-width: 640px;
}

.page-title {
  font-family: var(--font-heading);
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.page-title em,
.hero-headline em,
.section-heading em,
.cta-banner h2 em {
  font-style: italic;
  color: var(--accent);
}

.page-intro {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 540px;
}

/* ================================================
   SECTION HEADING (standalone)
   ================================================ */

.section-heading {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  margin-bottom: 32px;
  line-height: 1.15;
  max-width: 540px;
}

/* ================================================
   CTA BANNER
   ================================================ */

.cta-section {
  padding: 0 0 120px;
}

.cta-banner {
  padding: 64px 48px;
  border-radius: var(--radius);
  background: var(--bg-secondary);
}

.cta-banner h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 12px;
}

.cta-banner > p {
  color: var(--text-secondary);
  font-size: 1rem;
  margin-bottom: 28px;
  line-height: 1.6;
}

.cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ================================================
   HERO
   ================================================ */

.hero-section {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  padding-bottom: 40px;
  position: relative;
}

.hero-content {
  max-width: 720px;
}

.hero-headline {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 400;
  line-height: 1.05;
  letter-spacing: -0.04em;
  margin-bottom: 28px;
  color: var(--text-primary);
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.125rem);
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 560px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ================================================
   WHY SECTION — 3 COLUMNS
   ================================================ */

.why-section {
  padding: 80px 0 100px;
  border-top: 1px solid var(--border-light);
}

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

.col-card {
  padding: 32px 0;
  position: relative;
}

.col-card::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--accent);
  margin-bottom: 24px;
}

.col-card h3 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 400;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.col-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.65;
}

/* ================================================
   MANIFESTO
   ================================================ */

.manifesto-section {
  padding: 100px 0;
  border-top: 1px solid var(--border-light);
}

.manifesto-block {
  max-width: 760px;
}

.manifesto-block blockquote {
  border: none;
  padding: 0;
}

.manifesto-block blockquote p {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 400;
  line-height: 1.35;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}

.manifesto-block blockquote p:first-child {
  margin-bottom: 24px;
  color: var(--accent);
}

/* ================================================
   HOW WE BUILD — METHOD
   ================================================ */

.method-section {
  padding-top: 120px;
  border-top: 1px solid var(--border-light);
}

.section-header {
  margin-bottom: 64px;
  max-width: 640px;
}

.section-header h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  letter-spacing: -0.04em;
  margin-bottom: 16px;
  line-height: 1.1;
}

.section-sub {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  max-width: 560px;
  line-height: 1.65;
}

.comparison-section {
  padding-top: 0;
}

.toolchain-section {
  border-top: 1px solid var(--border-light);
}

.process-section {
  border-top: 1px solid var(--border-light);
}

.projects-section {
  padding-top: 0;
}

/* Comparison Table */

.comparison-table {
  margin-bottom: 0;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border-light);
  background: var(--bg-secondary);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.9375rem;
}

thead th {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  padding: 20px 24px;
  text-align: left;
  border-bottom: 1px solid var(--border-light);
}

thead th.highlight-col {
  color: var(--accent);
}

tbody td {
  padding: 16px 24px;
  border-bottom: 1px solid var(--border-light);
  color: var(--text-secondary);
  font-size: 0.875rem;
}

tbody tr:last-child td {
  border-bottom: none;
}

tbody td.row-label {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-primary);
  white-space: nowrap;
}

tbody td.highlight-col {
  color: var(--text-primary);
  font-weight: 500;
}

/* Toolchain */

.toolchain {
  margin-bottom: 80px;
}

.toolchain-title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  margin-bottom: 24px;
  color: var(--text-muted);
}

.tool-featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.tool-card-featured {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 28px 24px;
  border-radius: var(--radius);
  background: var(--bg-secondary);
  transition: background 0.3s, transform 0.3s;
}

.tool-card-featured:hover {
  background: var(--bg-card);
  transform: translateY(-2px);
}

.tool-logo-badge {
  width: 124px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.35);
  padding: 12px 14px;
}

.tool-logo-mark {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: left center;
}

.tool-name {
  font-family: var(--font-mono);
  font-weight: 400;
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.tool-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.5;
}

.toolchain-marquee {
  margin-top: 28px;
  padding-top: 28px;
  border-top: 1px solid var(--border-light);
}

.toolchain-marquee-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 24px;
  margin-bottom: 20px;
}

.toolchain-marquee-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.toolchain-marquee-header p {
  max-width: 520px;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.tool-marquee {
  position: relative;
  overflow: hidden;
}

.tool-marquee::before,
.tool-marquee::after {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  width: 72px;
  z-index: 1;
  pointer-events: none;
}

.tool-marquee::before {
  left: 0;
  background: linear-gradient(90deg, var(--bg-primary) 0%, rgba(255, 254, 242, 0) 100%);
}

.tool-marquee::after {
  right: 0;
  background: linear-gradient(270deg, var(--bg-primary) 0%, rgba(255, 254, 242, 0) 100%);
}

.tool-marquee-track {
  display: flex;
  width: max-content;
  animation: tool-marquee-scroll 38s linear infinite;
}

.tool-marquee:hover .tool-marquee-track {
  animation-play-state: paused;
}

.tool-marquee-list {
  display: flex;
  align-items: center;
  gap: 14px;
  padding-right: 14px;
  flex-shrink: 0;
}

.tool-chip {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  min-height: 52px;
  padding: 12px 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: 999px;
  white-space: nowrap;
}

.tool-chip img {
  width: auto;
  max-width: 42px;
  height: 20px;
  object-fit: contain;
  flex-shrink: 0;
  display: block;
}

.tool-chip span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.03em;
  text-transform: uppercase;
}

@keyframes tool-marquee-scroll {
  from {
    transform: translateX(0);
  }

  to {
    transform: translateX(calc(-50% - 7px));
  }
}

/* Process Steps */

.process-steps {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.step {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 32px 28px;
  position: relative;
  transition: background 0.3s;
}

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

.step-number {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 400;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.step-content h4 {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 400;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.6;
}

/* ================================================
   OUR WORK
   ================================================ */

.work-section {
  border-top: 1px solid var(--border-light);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.project-card {
  background: var(--bg-secondary);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: background 0.3s;
  display: flex;
  flex-direction: column;
}

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

.card-number {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
  margin-bottom: 16px;
}

.card-tags {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.card-tags span {
  background: var(--bg-primary);
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.625rem;
  font-weight: 400;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border: 1px solid var(--border-light);
}

.project-card h3 {
  font-family: var(--font-heading);
  font-size: 1.375rem;
  font-weight: 400;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.project-card p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.65;
}

.work-banner {
  padding: 64px 48px;
  border-radius: var(--radius);
  background: var(--bg-secondary);
}

.work-banner p {
  font-family: var(--font-heading);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 400;
  margin-bottom: 28px;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

/* ================================================
   CONTACT
   ================================================ */

.contact-section {
  padding-top: 0;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.contact-left .section-header {
  margin-bottom: 32px;
}

.contact-info-block {
  margin-bottom: 32px;
}

.contact-info-label {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.contact-info-value {
  color: var(--text-secondary);
  font-size: 0.9375rem;
  line-height: 1.6;
}

.contact-email {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 400;
  color: var(--accent);
  text-decoration: none;
  transition: opacity 0.2s;
}

.contact-email:hover {
  opacity: 0.8;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-secondary);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  background: var(--bg-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color 0.2s;
  resize: vertical;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.contact-note {
  color: var(--text-muted);
  font-size: 0.8125rem;
  margin-top: 8px;
  font-style: italic;
}

.form-status {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  letter-spacing: 0.02em;
  padding: 0;
  min-height: 1.5em;
  margin-bottom: 8px;
}

.form-status-success {
  color: #2e7d32;
}

.form-status-error {
  color: #c62828;
}

/* ================================================
   FOOTER
   ================================================ */

.footer {
  border-top: 1px solid var(--border-light);
  padding: 48px 0 32px;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
  padding-bottom: 32px;
  border-bottom: 1px solid var(--border-light);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--text-primary);
  font-family: var(--font-heading);
  font-size: 1.25rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.2s;
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom span,
.footer-bottom a {
  color: var(--text-muted);
  font-size: 0.75rem;
  text-decoration: none;
}

.footer-tagline {
  font-family: var(--font-heading);
  font-size: 0.875rem !important;
  color: var(--text-secondary) !important;
  font-style: italic;
}

/* ================================================
   ANIMATIONS
   ================================================ */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ================================================
   RESPONSIVE
   ================================================ */

@media (max-width: 960px) {
  .columns-3 {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .col-card {
    padding: 24px 0;
    border-bottom: 1px solid var(--border-light);
  }

  .col-card:last-child {
    border-bottom: none;
  }

  .tool-featured-grid {
    grid-template-columns: 1fr;
  }

  .toolchain-marquee-header {
    flex-direction: column;
    align-items: flex-start;
  }

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

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

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

  .container {
    padding: 0 24px;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-light);
    flex-direction: column;
    padding: 24px;
    gap: 20px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-cta-wrap .btn {
    display: none;
  }

  .nav-toggle {
    display: flex;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero-headline,
  .page-title {
    font-size: 2.75rem;
  }

  .process-steps {
    grid-template-columns: 1fr;
  }

  .footer-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero-headline,
  .page-title {
    font-size: 2.25rem;
  }

  .section-header h2,
  .section-heading {
    font-size: 1.75rem;
  }

  .tool-logo-badge {
    width: 112px;
  }

  .tool-chip {
    min-height: 48px;
    padding: 10px 14px;
    gap: 10px;
  }

  .tool-chip img {
    max-width: 38px;
    height: 18px;
  }

  .tool-chip span {
    font-size: 0.6875rem;
  }

  .tool-marquee-track {
    animation-duration: 30s;
  }

  .cta-banner {
    padding: 40px 24px;
  }

  .page-header-section {
    padding-top: 120px;
    padding-bottom: 48px;
  }

  .project-card {
    padding: 24px 20px;
  }

  .work-banner {
    padding: 40px 24px;
  }

  .hero-ctas {
    flex-direction: column;
  }

  .hero-ctas .btn {
    width: 100%;
  }
}