:root {
  --bg: #f7f5f0;
  --bg-alt: #edeae3;
  --surface: #ffffff;
  --text: #1a1a1a;
  --text-muted: #5c5a55;
  --accent: #c45c26;
  --accent-dark: #9a4520;
  --accent-soft: rgba(196, 92, 38, 0.1);
  --border: rgba(26, 26, 26, 0.08);
  --shadow: 0 4px 24px rgba(26, 26, 26, 0.06);
  --shadow-lg: 0 12px 48px rgba(26, 26, 26, 0.1);
  --radius: 12px;
  --radius-lg: 20px;
  --font-sans: "Instrument Sans", system-ui, sans-serif;
  --font-serif: "DM Serif Display", Georgia, serif;
  --max-width: 1120px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-height);
  background: rgba(247, 245, 240, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 400;
  letter-spacing: -0.02em;
}

.logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

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

.nav-cta {
  font-size: 0.875rem;
  font-weight: 600;
  padding: 0.55rem 1.1rem;
  background: var(--text);
  color: var(--bg);
  border-radius: 999px;
  white-space: nowrap;
  transition: background 0.2s, transform 0.15s;
  border: none;
  cursor: pointer;
  font-family: var(--font-sans);
}

.nav-cta:hover {
  background: var(--accent);
  transform: translateY(-1px);
}

/* Hero */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: calc(var(--header-height) + 4rem) 1.5rem 5rem;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
  min-height: 90vh;
}

.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 400;
  line-height: 1.12;
  letter-spacing: -0.03em;
  margin-bottom: 1.5rem;
}

.hero h1 em {
  font-style: italic;
  color: var(--accent);
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 32rem;
  margin-bottom: 2rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 0.85rem 1.6rem;
  border-radius: 999px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

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

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

.btn-large {
  font-size: 1.05rem;
  padding: 1rem 2rem;
}

/* Diagram visual */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.diagram-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 340px;
}

.diagram-layer {
  background: var(--bg-alt);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.85rem 1.25rem;
  text-align: center;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-muted);
}

.layer-1 {
  background: var(--accent-soft);
  border-color: rgba(196, 92, 38, 0.25);
  color: var(--accent-dark);
}

.layer-2 {
  background: var(--text);
  color: var(--bg);
  border-color: var(--text);
}

.diagram-connector {
  width: 2px;
  height: 20px;
  background: var(--border);
  margin: 0 auto;
}

.diagram-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5rem;
}

.layer-3 {
  font-size: 0.75rem;
  padding: 0.65rem 0.5rem;
}

/* Sections */
.section {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 5rem 1.5rem;
}

.alt-bg {
  max-width: none;
  background: var(--bg-alt);
}

.alt-bg > .section-header,
.alt-bg > .two-col-layout,
.alt-bg > .card-grid {
  max-width: var(--max-width);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section-header {
  margin-bottom: 3rem;
  max-width: 36rem;
}

.phase-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.section-header h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

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

/* Cards */
.card-grid {
  display: grid;
  gap: 1.5rem;
}

.three-col {
  grid-template-columns: repeat(3, 1fr);
}

.two-col {
  grid-template-columns: repeat(2, 1fr);
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: box-shadow 0.25s, transform 0.25s;
}

.card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.card-icon {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--accent);
  opacity: 0.5;
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.65rem;
}

.card p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.highlight-card {
  border-left: 3px solid var(--accent);
}

/* Two column layout */
.two-col-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.profile-card,
.pricing-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.profile-card h3,
.pricing-card h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  margin-bottom: 1.25rem;
}

.check-list li {
  position: relative;
  padding-left: 1.75rem;
  margin-bottom: 0.85rem;
  color: var(--text-muted);
}

.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}

.pricing-item {
  margin-bottom: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.pricing-item:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.pricing-tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.pricing-item p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* Process steps */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
}

.process-step {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 1.5rem;
  padding: 2rem 0;
  border-bottom: 1px solid var(--border);
}

.process-step:last-child {
  border-bottom: none;
}

.step-number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  border-radius: 50%;
  flex-shrink: 0;
}

.step-meta {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.5rem;
}

.step-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
}

.step-badge {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
}

.step-badge.free {
  background: #e8f4ea;
  color: #2d6a3e;
}

.step-badge.paid {
  background: var(--accent-soft);
  color: var(--accent-dark);
}

.step-badge.delivery {
  background: #e8edf4;
  color: #2d4a6a;
}

.step-content p,
.step-content ul {
  color: var(--text-muted);
}

.step-content ul {
  margin-top: 0.5rem;
  padding-left: 1.25rem;
  list-style: disc;
}

.step-content li {
  margin-bottom: 0.35rem;
}

/* Contact */
.contact-section {
  text-align: center;
  padding: 6rem 1.5rem;
}

.contact-inner {
  max-width: 32rem;
  margin: 0 auto;
}

.contact-inner h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  margin-bottom: 1rem;
}

.contact-inner > p {
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.contact-note {
  margin-top: 1.5rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  opacity: 0.7;
}

.contact-note code {
  font-size: 0.75rem;
  background: var(--bg-alt);
  padding: 0.15rem 0.4rem;
  border-radius: 4px;
}

/* Footer */
.site-footer {
  text-align: center;
  padding: 2rem 1.5rem;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Mobile nav toggle hidden on desktop */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

/* Responsive */
@media (max-width: 900px) {
  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: calc(var(--header-height) + 2.5rem);
    gap: 2.5rem;
  }

  .hero-visual {
    order: -1;
  }

  .three-col,
  .two-col,
  .two-col-layout {
    grid-template-columns: 1fr;
  }

  .nav-links,
  .nav-actions {
    display: none;
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
  }

  .nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: transform 0.2s, opacity 0.2s;
  }

  .nav.open .nav-links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 1.5rem 1.5rem 0;
    border-bottom: none;
    gap: 1rem;
  }

  .nav.open .nav-actions {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    position: absolute;
    top: calc(var(--header-height) + 8.5rem);
    left: 0;
    right: 0;
    background: var(--bg);
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--border);
    gap: 1rem;
  }

  .nav.open .lang-switch {
    justify-content: center;
  }

  .nav.open .nav-cta {
    display: inline-flex;
    justify-content: center;
    position: static;
  }
}

@media (max-width: 480px) {
  .process-step {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .step-number {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }
}