:root {
  --bg: #f7f5f0;
  --bg-alt: #edeae3;
  --text: #1a1a18;
  --text-muted: #5c5a55;
  --accent: #2d4a3e;
  --accent-light: #3d6354;
  --border: #d8d4cb;
  --card-bg: #fff;
  --font-serif: "Instrument Serif", Georgia, serif;
  --font-sans: "DM Sans", system-ui, sans-serif;
  --max-width: 1080px;
  --header-height: 72px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

/* Header */

.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
  padding: 0 2rem;
  background: rgba(247, 245, 240, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s;
}

.site-header.scrolled {
  border-bottom-color: var(--border);
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

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

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

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

/* Hero */

.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: calc(var(--header-height) + 4rem) 2rem 4rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1.5rem;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
}

.hero-lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 32rem;
  margin-bottom: 2.5rem;
}

.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: #fff;
  background: var(--accent);
  border-radius: 6px;
  transition: background 0.2s;
  width: fit-content;
}

.btn:hover {
  background: var(--accent-light);
}

/* Sections */

.section {
  padding: 6rem 2rem;
}

.section-alt {
  background: var(--bg-alt);
}

.section-inner {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section h2 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 2.5rem;
}

.section-lead {
  color: var(--text-muted);
  margin-top: -1.5rem;
  margin-bottom: 2.5rem;
  max-width: 42rem;
  text-wrap: balance;
}

/* About */

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: start;
}

.about-intro {
  font-size: 1.125rem;
  line-height: 1.7;
}

.about-intro p + p {
  margin-top: 1.25rem;
}

.focus-list {
  list-style: none;
  font-size: 1rem;
}

.focus-list li {
  position: relative;
  padding-left: 1rem;
  margin-bottom: 0.5rem;
}

.focus-list li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--accent);
}

.about-details {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.detail-block h3 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.35rem;
}

.detail-block p {
  font-size: 1rem;
}

/* Work */

.work-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
}

.work-card {
  display: block;
  background: var(--card-bg);
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform 0.2s, box-shadow 0.2s;
}

a.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.06);
}

.work-card-image {
  height: 200px;
  background: linear-gradient(135deg, var(--bg-alt) 0%, #d4cfc4 100%);
  overflow: hidden;
}

.work-card-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.work-card-body {
  padding: 1.5rem;
}

.work-card-body h3 {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 400;
  margin-bottom: 0.5rem;
}

.work-card-body p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.work-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(45, 74, 62, 0.08);
  padding: 0.25rem 0.6rem;
  border-radius: 4px;
}

/* Contact */

.contact-inner {
  text-align: center;
}

.contact-lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 28rem;
  margin: -1rem auto 2rem;
}

.contact-form {
  max-width: 32rem;
  margin: 0 auto 2.5rem;
  text-align: left;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-field {
  margin-bottom: 1rem;
}

.form-field label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.4rem;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-sans);
  font-size: 1rem;
  color: var(--text);
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 6px;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(45, 74, 62, 0.12);
}

.form-field input:invalid:not(:placeholder-shown),
.form-field textarea:invalid:not(:placeholder-shown) {
  border-color: #b54a4a;
}

.form-field textarea {
  resize: vertical;
  min-height: 8rem;
}

.botcheck {
  display: none;
}

.btn-submit {
  width: 100%;
  border: none;
  cursor: pointer;
  margin-top: 0.5rem;
}

.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.form-status {
  margin-top: 1rem;
  font-size: 0.9rem;
  text-align: center;
  min-height: 1.4em;
}

.form-status.success {
  color: var(--accent);
}

.form-status.error {
  color: #b54a4a;
}

.contact-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
}

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

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

.contact-link-muted {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  opacity: 0.7;
  cursor: default;
}

/* Case study */

.case-study {
  padding-top: var(--header-height);
}

.case-hero-wrap {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 4rem 2rem 2.5rem;
  border-bottom: 1px solid var(--border);
}

.case-hero {
  padding: 0;
}

.case-back {
  display: inline-block;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  margin-bottom: 2rem;
  transition: color 0.2s;
}

.case-back:hover {
  color: var(--text);
}

.case-label {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.case-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  font-weight: 400;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

.case-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 40rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.case-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.case-figure {
  margin: 0;
  background: var(--card-bg);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.case-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.case-figure-hero {
  margin: 2rem 0 0;
  background: #1a2f4a;
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.case-figure-hero img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
  object-position: center;
}

.case-figure figcaption {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 2rem 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-align: center;
}

.case-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.case-block + .case-block {
  margin-top: 3rem;
}

.case-block h2 {
  font-family: var(--font-serif);
  font-size: 1.75rem;
  font-weight: 400;
  letter-spacing: -0.02em;
  margin-bottom: 1rem;
}

.case-block p {
  font-size: 1.05rem;
  line-height: 1.75;
  color: var(--text-muted);
}

.case-screenshots {
  display: grid;
  gap: 2rem;
  margin-top: 2.5rem;
}

.case-figure-pill {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  background: var(--card-bg);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.04);
}

.case-step-bar {
  padding: 0.75rem 1rem;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
}

.case-step {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  padding: 0.2rem 0.65rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: #fff;
  background: var(--accent);
  border-radius: 999px;
}

.case-figure-pill img {
  display: block;
  width: 100%;
  height: auto;
  background: #f0f4f8;
}

.case-figure-pill figcaption {
  padding: 1rem 1.25rem 1.25rem;
  text-align: left;
  font-size: 0.9rem;
  color: var(--text-muted);
  background: var(--card-bg);
  border-top: 1px solid var(--border);
}

.case-featured {
  display: grid;
  gap: 2rem;
  margin-top: 2rem;
}

.case-figure-wide {
  grid-column: 1 / -1;
}

.role-grid {
  display: grid;
  gap: 1rem;
}

.role-card {
  padding: 1.25rem 1.5rem;
  background: var(--bg-alt);
  border-radius: 8px;
  border: 1px solid var(--border);
}

.role-card h3 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.role-card p {
  font-size: 0.95rem;
  line-height: 1.6;
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
}

.tech-list li {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--bg-alt);
  border: 1px solid var(--border);
  padding: 0.4rem 0.75rem;
  border-radius: 6px;
}

.case-footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 2rem 5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
}

.case-footer-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.2s;
}

.case-footer-link:hover {
  color: var(--text);
}

@media (min-width: 900px) {
  .case-hero-wrap {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 3rem;
    align-items: center;
    padding-bottom: 0;
  }

  .case-figure-hero {
    margin: 0;
  }

  .case-figure-hero img {
    max-height: 340px;
    object-fit: cover;
    object-position: center top;
  }

  .case-screenshots {
    grid-template-columns: 1fr 1fr;
  }

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

@media (max-width: 768px) {
  .case-hero-wrap,
  .case-content,
  .case-footer,
  .case-figure figcaption {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }
}

/* Footer */

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

/* Responsive */

@media (max-width: 768px) {
  .site-header {
    padding: 0 1.25rem;
  }

  .site-nav {
    gap: 1.25rem;
  }

  .hero,
  .section {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

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

  .form-row {
    grid-template-columns: 1fr;
  }
}