:root {
  --color-ink: #111111;
  --color-paper: #ffffff;
  --color-paper-soft: #f5f5f5;
  --color-line: rgba(17, 17, 17, 0.08);
  --color-accent: #4a6cf7;
  --color-accent-soft: rgba(74, 108, 247, 0.12);
  --color-shadow: 0 24px 60px rgba(17, 17, 17, 0.08);
  --container: min(1180px, calc(100vw - 2rem));
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --transition: 260ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  color: var(--color-ink);
  background:
    radial-gradient(circle at top right, rgba(74, 108, 247, 0.08), transparent 28%),
    linear-gradient(180deg, #ffffff 0%, #fafafa 100%);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  display: block;
  max-width: 100%;
}

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

button,
input,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.page-shell {
  position: relative;
  overflow: clip;
}

.grid-overlay {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(17, 17, 17, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(17, 17, 17, 0.03) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.45), transparent 85%);
  opacity: 0.45;
  z-index: -1;
}

.container {
  width: var(--container);
  margin-inline: auto;
}

.section {
  padding: 6rem 0;
}

.section-head {
  display: grid;
  gap: 1rem;
  align-items: end;
  margin-bottom: 2.5rem;
}

.section-head h2,
.about-copy h2,
.contact-copy h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.8rem);
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.section-intro,
.hero-lead,
.contact-copy p,
.about-copy p,
.service-card p,
.hero-meta p {
  margin: 0;
  color: rgba(17, 17, 17, 0.72);
  font-size: 1rem;
  line-height: 1.7;
}

.eyebrow {
  margin: 0 0 1rem;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  padding: 1rem 0 0;
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  backdrop-filter: blur(18px);
  box-shadow: 0 12px 40px rgba(17, 17, 17, 0.06);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 3.35rem;
  height: 3.35rem;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(17, 17, 17, 0.08);
  overflow: hidden;
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  padding: 0.35rem;
}

.brand-copy {
  display: grid;
  gap: 0.1rem;
}

.brand-copy strong {
  font-size: 0.95rem;
}

.brand-copy small {
  font-size: 0.76rem;
  color: rgba(17, 17, 17, 0.55);
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav a {
  position: relative;
  font-size: 0.95rem;
  color: rgba(17, 17, 17, 0.78);
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 100%;
  height: 2px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.site-nav a:hover::after,
.site-nav a.is-active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  width: 2.9rem;
  height: 2.9rem;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: var(--color-paper-soft);
}

.nav-toggle span {
  display: block;
  width: 1.1rem;
  height: 2px;
  margin: 0.28rem auto;
  background: var(--color-ink);
  transition: transform var(--transition), opacity var(--transition);
}

.hero {
  padding-top: 4.5rem;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 2rem;
  align-items: center;
}

.hero-copy h1 {
  margin: 0;
  font-size: clamp(3rem, 7vw, 6rem);
  line-height: 0.95;
  letter-spacing: -0.06em;
  max-width: 9.5ch;
}

.hero-lead {
  max-width: 36rem;
  margin-top: 1.4rem;
  font-size: 1.125rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.25rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.5rem;
  padding: 0.8rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  transition:
    transform var(--transition),
    background var(--transition),
    border-color var(--transition),
    color var(--transition),
    box-shadow var(--transition);
}

.button:hover {
  transform: translateY(-2px);
}

.button-primary {
  background: var(--color-ink);
  color: var(--color-paper);
  box-shadow: 0 18px 40px rgba(17, 17, 17, 0.14);
}

.button-primary:hover {
  background: #000000;
}

.button-secondary {
  border-color: rgba(17, 17, 17, 0.12);
  background: rgba(255, 255, 255, 0.7);
}

.button-secondary:hover {
  border-color: rgba(17, 17, 17, 0.24);
}

.button-full {
  width: 100%;
}

.hero-visual {
  position: relative;
}

.hero-card {
  overflow: hidden;
  border-radius: var(--radius-xl);
  border: 1px solid rgba(17, 17, 17, 0.08);
  background: rgba(255, 255, 255, 0.88);
  box-shadow: var(--color-shadow);
}

.hero-card img {
  width: 100%;
  height: auto;
}

.hero-note {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: 1rem;
}

.hero-note span,
.filter-chip {
  padding: 0.7rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(17, 17, 17, 0.08);
  background: rgba(255, 255, 255, 0.84);
  font-size: 0.88rem;
  color: rgba(17, 17, 17, 0.8);
}

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  margin-top: 2.2rem;
}

.hero-meta article,
.service-card,
.contact-card {
  padding: 1.5rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(17, 17, 17, 0.08);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(10px);
  box-shadow: 0 12px 32px rgba(17, 17, 17, 0.04);
}

.hero-meta span,
.service-index {
  display: inline-flex;
  margin-bottom: 1rem;
  font-size: 0.88rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.portfolio-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.filter-chip {
  transition:
    background var(--transition),
    color var(--transition),
    transform var(--transition),
    border-color var(--transition);
}

.filter-chip.is-active,
.filter-chip:hover {
  background: var(--color-ink);
  border-color: var(--color-ink);
  color: var(--color-paper);
  transform: translateY(-1px);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.project-card {
  display: grid;
  gap: 1rem;
  padding: 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(17, 17, 17, 0.08);
  background: rgba(255, 255, 255, 0.84);
  transition:
    transform var(--transition),
    box-shadow var(--transition),
    border-color var(--transition),
    opacity var(--transition);
}

.project-card:hover {
  transform: translateY(-8px);
  border-color: rgba(74, 108, 247, 0.2);
  box-shadow: 0 24px 48px rgba(17, 17, 17, 0.1);
}

.project-card figure {
  overflow: hidden;
  margin: 0;
  border-radius: 20px;
  background: var(--color-paper-soft);
  aspect-ratio: 0.88;
}

.project-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 480ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.project-card:hover img {
  transform: scale(1.04);
}

.project-copy {
  display: grid;
  gap: 0.35rem;
}

.project-copy p {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.project-copy h3,
.service-card h3 {
  margin: 0;
  font-size: 1.3rem;
  letter-spacing: -0.03em;
}

.project-card.is-hidden {
  display: none;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
}

.service-card {
  display: flex;
  flex-direction: column;
  min-height: 100%;
}

.service-card p + p {
  margin-top: 0.85rem;
}

.service-detail {
  margin-bottom: 1.4rem;
}

.text-link {
  margin-top: auto;
  font-weight: 700;
  color: var(--color-accent);
}

.text-link::after {
  content: " ↗";
}

.about-layout,
.contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: 1.5rem;
  align-items: stretch;
}

.about-image,
.contact-card {
  overflow: hidden;
  border-radius: var(--radius-xl);
}

.about-image {
  border: 1px solid rgba(17, 17, 17, 0.08);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: var(--color-shadow);
}

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

.about-copy {
  padding: 1.5rem 0;
}

.about-copy p + p {
  margin-top: 1rem;
}

.skills-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0;
  margin: 1.6rem 0 0;
  list-style: none;
}

.skills-list li {
  padding: 0.8rem 1rem;
  border-radius: 999px;
  background: var(--color-paper);
  border: 1px solid rgba(17, 17, 17, 0.08);
}

.section-contact {
  padding-bottom: 7rem;
}

.contact-copy {
  display: grid;
  align-content: start;
  gap: 1rem;
}

.contact-meta {
  display: grid;
  gap: 1rem;
  margin-top: 1.25rem;
}

.contact-meta > a {
  font-size: clamp(1.2rem, 2.6vw, 1.8rem);
  font-weight: 700;
  letter-spacing: -0.04em;
}

.social-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.social-links a {
  color: rgba(17, 17, 17, 0.72);
}

.contact-form {
  display: grid;
  gap: 0.8rem;
}

.contact-form label {
  font-size: 0.92rem;
  font-weight: 600;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.95rem 1rem;
  border: 1px solid rgba(17, 17, 17, 0.12);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.95);
  transition:
    border-color var(--transition),
    box-shadow var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(74, 108, 247, 0.5);
  box-shadow: 0 0 0 5px var(--color-accent-soft);
}

.form-note,
.form-status {
  margin: 0;
  font-size: 0.92rem;
  line-height: 1.6;
  color: rgba(17, 17, 17, 0.64);
}

.form-status.is-success {
  color: #0d7a43;
}

.form-status.is-error {
  color: #b42318;
}

.site-footer {
  padding: 0 0 2rem;
}

.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 0.75rem 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(17, 17, 17, 0.08);
}

.footer-wrap p {
  margin: 0;
  font-size: 0.88rem;
  line-height: 1.6;
  color: rgba(17, 17, 17, 0.58);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 700ms cubic-bezier(0.2, 0.8, 0.2, 1),
    transform 700ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay {
  transition-delay: 120ms;
}

.reveal-delay-2 {
  transition-delay: 220ms;
}

@media (max-width: 1080px) {
  .portfolio-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .hero-layout,
  .about-layout,
  .contact-layout {
    grid-template-columns: 1fr;
  }

  .hero-copy h1 {
    max-width: 12ch;
  }
}

@media (max-width: 820px) {
  .section {
    padding: 4.5rem 0;
  }

  .nav-toggle {
    display: block;
    position: relative;
    z-index: 2;
  }

  .nav-toggle[aria-expanded="true"] span:first-child {
    transform: translateY(6px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-6px) rotate(-45deg);
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 0.75rem);
    left: 1rem;
    right: 1rem;
    display: grid;
    gap: 0.9rem;
    padding: 1.2rem;
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 20px 48px rgba(17, 17, 17, 0.12);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition:
      opacity var(--transition),
      transform var(--transition),
      visibility var(--transition);
  }

  .site-nav.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .hero-layout {
    gap: 1.5rem;
  }

  .hero-copy h1 {
    font-size: clamp(2.6rem, 12vw, 4.6rem);
  }

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

  .portfolio-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .site-header {
    padding-top: 0.75rem;
  }

  .nav-wrap {
    padding: 0.8rem;
    border-radius: 28px;
  }

  .brand-copy small {
    display: none;
  }

  .section-head {
    margin-bottom: 2rem;
  }

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

  .hero-actions,
  .social-links {
    gap: 0.75rem;
  }

  .button {
    width: 100%;
  }

  .hero-note span,
  .skills-list li,
  .filter-chip {
    width: 100%;
    justify-content: center;
  }

  .footer-wrap {
    flex-direction: column;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}