/* Astrix — minimal brand site */

:root {
  --bg: #ffffff;
  --text: #1a1a1a;
  --text-muted: #4a4a4a;
  --link: #2563eb;
  --border: #e5e5e5;
  --font: "DM Sans", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 5rem;
  --space-9: 6rem;
  --space-10: 8rem;

  --section-gap: var(--space-9);
  --column-gap: var(--space-8);
  --block-padding: var(--space-6);
}

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

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

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--link);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
  vertical-align: middle;
}

.container {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--bg);
  padding: var(--space-4) 0;
}

.site-header .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-weight: 700;
  font-size: 1.75rem;
  letter-spacing: -0.02em;
}

.nav-toggle {
  display: none;
  border: 0;
  background: none;
}

.nav-links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.9375rem;
  font-weight: 400;
}

/* Hero — home */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: var(--space-10) 0 var(--section-gap);
}

.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--column-gap);
  align-items: start;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin: 0 0 var(--space-4);
}

.hero-desc {
  font-size: 1rem;
  color: var(--text-muted);
  max-width: 28ch;
  margin: 0;
  line-height: 1.6;
}

.scroll-hint {
  margin-top: var(--space-6);
}

.scroll-hint svg {
  width: 24px;
  height: 24px;
  color: var(--text-muted);
}

/* Work sections — home */
.work-section {
  padding: var(--section-gap) 0;
  border-top: 1px solid var(--border);
}

.work-section .container {
  display: grid;
  grid-template-columns: minmax(0, 380px) 1fr;
  gap: var(--column-gap);
  align-items: start;
}

.work-section .work-content {
  padding-top: var(--space-2);
}

.work-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text);
  margin: 0 0 var(--space-3);
}

.work-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0 0 var(--space-4);
  line-height: 1.65;
}

.work-cta {
  font-size: 0.9375rem;
  color: var(--text);
}

.work-cta:hover {
  color: var(--link);
}

.work-image {
  aspect-ratio: 4/3;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
  margin-left: 0;
}

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

/* About page */
.page-hero {
  padding: var(--space-10) 0 var(--section-gap);
}

.page-hero .container {
  display: grid;
  grid-template-columns: minmax(0, 400px) 1fr;
  gap: var(--column-gap);
  align-items: start;
}

.page-hero .page-content {
  padding-top: var(--space-2);
}

.page-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-4);
}

.page-hero p {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0 0 var(--space-3);
  max-width: 42ch;
  line-height: 1.65;
}

.page-hero .image-wrap {
  aspect-ratio: 3/4;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.page-hero .image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Meta block */
.meta-block {
  padding: var(--block-padding) 0;
  border-top: 1px solid var(--border);
}

.meta-block .container {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: var(--space-6);
  align-items: baseline;
}

.meta-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
}

.meta-list {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.7;
}

/* CTA strip */
.cta-strip {
  padding: var(--block-padding) 0;
  border-top: 1px solid var(--border);
}

.cta-strip .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.cta-text {
  font-size: 1rem;
  font-weight: 500;
  margin: 0;
}

.cta-email {
  font-size: 1rem;
  color: var(--text-muted);
}

.cta-email:hover {
  color: var(--link);
}

.cta-resume {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: var(--space-2);
  display: block;
}

/* Project sum page */
.project-hero {
  padding: var(--space-10) 0 var(--section-gap);
}

.project-hero .container {
  display: grid;
  grid-template-columns: minmax(0, 380px) 1fr;
  gap: var(--column-gap);
  align-items: start;
}

.project-hero .project-content {
  padding-top: var(--space-2);
}

.project-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0 0 var(--space-3);
}

.project-desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  margin: 0 0 var(--space-4);
  line-height: 1.65;
}

.project-link {
  font-size: 0.9375rem;
}

.project-hero .image-wrap {
  aspect-ratio: 4/3;
  background: var(--border);
  border-radius: 4px;
  overflow: hidden;
}

.project-hero .image-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Footer */
.site-footer {
  padding: var(--block-padding) 0;
  border-top: 1px solid var(--border);
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.copyright {
  font-size: 0.875rem;
  color: var(--link);
}

.footer-links {
  display: flex;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.875rem;
}

/* Touch targets */
.nav-links a,
.work-cta,
.project-link,
.cta-email,
.footer-links a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* Responsive — tablet */
@media (max-width: 1024px) {
  :root {
    --column-gap: var(--space-6);
    --section-gap: var(--space-8);
  }
  .container {
    padding: 0 var(--space-5);
  }
  .hero-title {
    font-size: clamp(2rem, 4.5vw, 3rem);
  }
}

/* Responsive — mobile */
@media (max-width: 768px) {
  :root {
    --column-gap: var(--space-5);
    --section-gap: var(--space-7);
  }
  .container {
    padding: 0 var(--space-4);
  }
  .site-header {
    padding: var(--space-3) 0;
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  .site-header .container {
    flex-wrap: wrap;
  }
  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 0;
    border: 0;
    background: none;
    cursor: pointer;
    margin-left: auto;
  }
  .nav-toggle span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text);
    transition: transform 0.2s, opacity 0.2s;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }
  .site-header nav {
    width: 100%;
  }
  .nav-links {
    display: none;
    width: 100%;
    flex-direction: column;
    gap: 0;
    padding: var(--space-4) 0 0;
    border-top: 1px solid var(--border);
    margin-top: var(--space-3);
  }
  .nav-links.is-open {
    display: flex;
  }
  .nav-links a {
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--border);
    min-height: 48px;
  }
  .hero .container,
  .work-section .container,
  .page-hero .container,
  .project-hero .container {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .hero {
    padding: calc(var(--space-9) + env(safe-area-inset-top)) 0 var(--space-7);
    min-height: auto;
  }
  .hero-title {
    font-size: clamp(1.75rem, 8vw, 2.5rem);
  }
  .work-section {
    padding: var(--space-6) 0;
  }
  .work-section .work-content,
  .page-hero .page-content,
  .project-hero .project-content {
    padding-top: 0;
  }
  .work-image,
  .page-hero .image-wrap,
  .project-hero .image-wrap {
    order: -1;
  }
  .work-image,
  .project-hero .image-wrap {
    aspect-ratio: 16/10;
  }
  .hero-desc {
    max-width: none;
  }
  .meta-block .container {
    grid-template-columns: 1fr;
    gap: var(--space-3);
  }
  .cta-strip .container {
    flex-direction: column;
    align-items: flex-start;
  }
  .site-footer {
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);
  }
  .site-footer .container {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 var(--space-3);
  }
  .hero-title {
    font-size: 1.75rem;
  }
  .page-title {
    font-size: 1.5rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .nav-toggle span {
    transition: none;
  }
}