:root {
  --font-display: "Syne", sans-serif;
  --font-body: "IBM Plex Sans", sans-serif;
  --font-mono: "IBM Plex Mono", monospace;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  line-height: 1.6;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  transition: background-color 240ms var(--ease-out), color 240ms var(--ease-out);
}

body.light {
  color-scheme: light;
  --bg: #f7f0e6;
  --bg-secondary: #ecdbc6;
  --surface: rgba(255, 249, 241, 0.78);
  --surface-strong: #fff8ef;
  --surface-solid: #fff6ec;
  --text: #11223a;
  --muted: #5d6978;
  --accent: #ef6d3f;
  --accent-2: #13897a;
  --accent-soft: rgba(239, 109, 63, 0.12);
  --card-stroke: rgba(17, 34, 58, 0.08);
  --grid: rgba(17, 34, 58, 0.06);
  --shadow: 0 24px 70px rgba(17, 34, 58, 0.12);
}

body.dark {
  color-scheme: dark;
  --bg: #08111d;
  --bg-secondary: #11253a;
  --surface: rgba(11, 22, 35, 0.72);
  --surface-strong: #0f2236;
  --surface-solid: #0e1d2d;
  --text: #f8f2e8;
  --muted: #afbdd0;
  --accent: #ff8f3d;
  --accent-2: #69dbc9;
  --accent-soft: rgba(255, 143, 61, 0.14);
  --card-stroke: rgba(248, 242, 232, 0.1);
  --grid: rgba(248, 242, 232, 0.08);
  --shadow: 0 26px 80px rgba(0, 0, 0, 0.34);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(var(--grid) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid) 1px, transparent 1px);
  background-size: 46px 46px;
  opacity: 0.5;
  pointer-events: none;
  mask-image: radial-gradient(circle at center, #000 56%, transparent 100%);
}

a {
  color: inherit;
}

button,
a {
  -webkit-tap-highlight-color: transparent;
}

img {
  display: block;
}

.page-noise {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
}

body.light .page-noise {
  background:
    radial-gradient(circle at 16% 18%, rgba(239, 109, 63, 0.24), transparent 30%),
    radial-gradient(circle at 85% 20%, rgba(19, 137, 122, 0.18), transparent 26%),
    radial-gradient(circle at 48% 82%, rgba(17, 34, 58, 0.1), transparent 34%),
    linear-gradient(145deg, #faf4ec 0%, #f2e8db 48%, #f9f2ea 100%);
}

body.dark .page-noise {
  background:
    radial-gradient(circle at 18% 18%, rgba(255, 143, 61, 0.24), transparent 30%),
    radial-gradient(circle at 84% 20%, rgba(105, 219, 201, 0.16), transparent 24%),
    radial-gradient(circle at 54% 78%, rgba(17, 37, 58, 0.56), transparent 36%),
    linear-gradient(155deg, #08111d 0%, #0d1c2d 48%, #091521 100%);
}

.topbar,
.section {
  animation: rise-in 800ms var(--ease-out) both;
}

.topbar {
  position: sticky;
  top: 1rem;
  z-index: 20;
  width: min(1140px, calc(100% - 2rem));
  margin: 1rem auto 0;
  padding: 0.85rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--card-stroke);
  border-radius: 999px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(20px);
  transition: padding 300ms var(--ease-out), border-radius 300ms var(--ease-out);
}

.controls {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.6rem;
  margin-left: auto;
  overflow: hidden;
  max-width: 400px;
  opacity: 1;
  transition:
    max-width 300ms var(--ease-out),
    opacity 200ms var(--ease-out),
    margin 300ms var(--ease-out);
}

.topbar.scrolled .controls {
  max-width: 0;
  opacity: 0;
  margin-left: 0;
  pointer-events: none;
}

.brand {
  flex-shrink: 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-decoration: none;
  text-transform: uppercase;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.topnav a {
  position: relative;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 500;
  text-decoration: none;
  transition: color 180ms ease;
}

.topnav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.3rem;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 180ms ease;
}

.topnav a:hover,
.topnav a:focus-visible,
.text-link:hover,
.text-link:focus-visible {
  color: var(--text);
}

.topnav a:hover::after,
.topnav a:focus-visible::after {
  transform: scaleX(1);
}

.controls button {
  appearance: none;
  border: 1px solid var(--card-stroke);
  border-radius: 999px;
  padding: 0.75rem 1rem;
  background: var(--surface-solid);
  color: var(--text);
  cursor: pointer;
  font: 600 0.9rem var(--font-body);
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.controls button:hover,
.controls button:focus-visible,
.button:hover,
.button:focus-visible,
.contact-link:hover,
.contact-link:focus-visible,
.footer-icons a:hover,
.footer-icons a:focus-visible {
  transform: translateY(-2px);
}

.controls button:hover,
.controls button:focus-visible,
.contact-link:hover,
.contact-link:focus-visible,
.footer-icons a:hover,
.footer-icons a:focus-visible {
  border-color: var(--accent);
}

.page-shell {
  width: min(1140px, calc(100% - 2rem));
  margin: 0 auto;
  padding: 2.2rem 0 4rem;
}

.section {
  margin-top: 1.8rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 2rem;
  align-items: center;
  min-height: calc(100vh - 11rem);
  padding: 1.25rem 0 0.5rem;
}

.hero-copy {
  max-width: 42rem;
}

.eyebrow,
.section-tag,
.signal-label,
.contact-label,
.project-status {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.eyebrow,
.section-tag {
  margin: 0 0 0.8rem;
  color: var(--accent-2);
}

#site-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(3.4rem, 8vw, 6.8rem);
  line-height: 0.95;
  letter-spacing: -0.05em;
  cursor: pointer;
}

.hero-text,
.intro-text,
.skill-block p,
.project-card p,
.contact-text,
.contact-note,
.signal-text,
.principle-card p {
  color: var(--muted);
}

.hero-text {
  max-width: 37rem;
  margin: 1.3rem 0 0;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 3.3rem;
  padding: 0.85rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  font-weight: 600;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease,
    color 180ms ease;
}

.button-primary {
  background: var(--text);
  color: var(--bg);
}

.button-secondary {
  background: var(--surface);
  color: var(--text);
  border-color: var(--card-stroke);
}

.button-primary:hover,
.button-primary:focus-visible {
  background: var(--accent);
}

.button-secondary:hover,
.button-secondary:focus-visible {
  border-color: var(--accent);
}

.hero-panel {
  position: relative;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: 2rem 1.5rem auto auto;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 72%);
  pointer-events: none;
}

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

.signal-card,
.principle-card,
.project-card,
.skill-block,
.contact-card {
  position: relative;
  border: 1px solid var(--card-stroke);
  border-radius: 1.6rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.signal-card,
.principle-card,
.project-card,
.skill-block {
  padding: 1.4rem;
}

.signal-card::after,
.project-card::after,
.skill-block::after,
.principle-card::after {
  content: "";
  position: absolute;
  left: 1.4rem;
  right: 1.4rem;
  bottom: 1rem;
  height: 1px;
  background: linear-gradient(90deg, var(--accent), transparent);
  opacity: 0.55;
}

.signal-card-large {
  grid-column: span 2;
  padding: 1.75rem;
  background:
    linear-gradient(145deg, var(--surface-strong), transparent),
    var(--surface);
}

.signal-label {
  color: var(--accent-2);
}

.signal-value {
  display: inline-block;
  margin-top: 0.45rem;
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 4.8rem);
  line-height: 1;
  letter-spacing: -0.06em;
}

.signal-text,
.project-card p,
.skill-block p,
.principle-card p {
  margin: 0.85rem 0 0;
}

.section-heading {
  max-width: 48rem;
  margin-bottom: 1.6rem;
}

.section-heading h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.2vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.intro-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 1.25rem;
  align-items: start;
}

.intro-text {
  margin: 0;
  padding: 1.5rem;
  border: 1px solid var(--card-stroke);
  border-radius: 1.6rem;
  background: var(--surface);
  box-shadow: var(--shadow);
  font-size: 1.08rem;
}

.principles,
.work-grid,
.skills-grid,
.contact-links {
  display: grid;
  gap: 1rem;
}

.principles {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.principle-card h3,
.project-card h3,
.skill-block h3 {
  margin: 0;
  font-size: 1.2rem;
}

.project-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.project-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.8rem;
  height: 2.8rem;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-family: var(--font-mono);
  font-size: 0.88rem;
}

.project-status {
  color: var(--accent-2);
}

.work-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-card-highlight {
  background:
    radial-gradient(circle at top right, var(--accent-soft), transparent 38%),
    var(--surface);
}

.card-tags,
.chip-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  padding: 0;
  margin: 1.25rem 0 0;
}

.card-tags li,
.chip-list li {
  border: 1px solid var(--card-stroke);
  border-radius: 999px;
  padding: 0.45rem 0.8rem;
  background: var(--surface-solid);
  font-size: 0.9rem;
}

.text-link {
  display: inline-flex;
  margin-top: 1.5rem;
  color: var(--muted);
  font-weight: 600;
  text-decoration: none;
  transition: color 180ms ease;
}

.skills-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.contact-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.9fr);
  gap: 1.2rem;
  padding: clamp(1.5rem, 4vw, 2.25rem);
  overflow: hidden;
}

.contact-card::before {
  content: "";
  position: absolute;
  inset: auto auto -70px -50px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--accent-soft), transparent 70%);
  pointer-events: none;
}

.contact-copy {
  position: relative;
  z-index: 1;
}

.contact-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4vw, 3.4rem);
  line-height: 1;
  letter-spacing: -0.04em;
}

.contact-text,
.contact-note {
  max-width: 34rem;
}

.contact-note {
  margin: 1rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.contact-links {
  position: relative;
  z-index: 1;
  align-content: start;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.95rem;
  padding: 1rem 1.1rem;
  border: 1px solid var(--card-stroke);
  border-radius: 1.15rem;
  background: var(--surface-solid);
  text-decoration: none;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background-color 180ms ease;
}

.contact-meta {
  display: grid;
  gap: 0.15rem;
}

.contact-meta strong {
  font-size: 1rem;
}

.contact-label {
  color: var(--muted);
}

.hero,
.intro {
  animation-delay: 80ms;
}

.work {
  animation-delay: 160ms;
}

.skills-section {
  animation-delay: 240ms;
}

.contact-section {
  animation-delay: 320ms;
}

@keyframes rise-in {
  from {
    opacity: 0;
    transform: translateY(26px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1024px) {
  .hero,
  .intro-grid,
  .contact-card,
  .skills-grid,
  .work-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: auto;
    padding-top: 0.75rem;
  }

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

@media (max-width: 760px) {
  body::before {
    background-size: 36px 36px;
  }

  .topbar {
    flex-wrap: wrap;
    border-radius: 1.4rem;
    gap: 0.25rem;
    padding: 0.75rem 1rem 0;
  }

  .topbar.scrolled {
    flex-wrap: nowrap;
    border-radius: 999px;
    padding: 0.75rem 1rem;
  }

  .topnav {
    order: 3;
    width: 100%;
    justify-content: space-around;
    gap: 0;
    padding: 0.5rem 0 0.6rem;
    border-top: 1px solid var(--card-stroke);
    margin-top: 0.25rem;
    font-size: 0.88rem;
  }

  .topbar.scrolled .topnav {
    order: unset;
    width: auto;
    flex: 1;
    justify-content: center;
    gap: 1.25rem;
    padding: 0;
    border-top: none;
    margin-top: 0;
  }

  .controls {
    margin-left: auto;
  }

  .topbar.scrolled .controls {
    margin-left: 0;
  }

  #site-title {
    font-size: clamp(2.8rem, 15vw, 4.4rem);
  }

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

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

  .signal-card-large {
    grid-column: span 2;
  }

  .contact-card,
  .intro-text,
  .signal-card,
  .project-card,
  .skill-block,
  .principle-card {
    border-radius: 1.3rem;
  }

  .button {
    width: 100%;
  }
}

@media (max-width: 520px) {
  .page-shell {
    padding-top: 1.6rem;
  }

  .topbar {
    top: 0.75rem;
  }

  .controls button {
    flex: 1;
    min-width: 0;
  }

  .topnav {
    gap: 1rem;
    font-size: 0.88rem;
  }

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

  .contact-link {
    align-items: flex-start;
  }
}

@media (max-width: 380px) {
  .topbar {
    padding: 0.7rem 0.85rem;
  }

  .hero-panel-grid {
    grid-template-columns: 1fr;
  }

  .signal-card-large {
    grid-column: auto;
  }

  .topnav {
    gap: 0.75rem;
    font-size: 0.82rem;
  }
}