:root {
  --bg: #050b14;
  --bg-soft: #081321;
  --panel: rgba(11, 25, 40, 0.76);
  --panel-strong: #0d1c2b;
  --line: rgba(131, 166, 191, 0.2);
  --text: #e8f1f7;
  --muted: #8da2b3;
  --teal: #31e6cf;
  --teal-soft: rgba(49, 230, 207, 0.12);
  --amber: #ffbc69;
  --blue: #5b8cff;
  --radius: 18px;
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
  --sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 92px;
}

main section {
  scroll-margin-top: 92px;
}

body {
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 12% 6%, rgba(46, 99, 142, 0.17), transparent 28rem),
    radial-gradient(circle at 88% 38%, rgba(91, 140, 255, 0.09), transparent 32rem),
    var(--bg);
  font-family: var(--sans);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  content: "";
  pointer-events: none;
  opacity: 0.22;
  background-image:
    linear-gradient(rgba(65, 119, 146, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(65, 119, 146, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

a {
  color: inherit;
}

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

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

:focus-visible {
  outline: 3px solid var(--amber);
  outline-offset: 4px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 1000;
  padding: 10px 14px;
  color: #03100e;
  background: var(--teal);
  border-radius: 8px;
  font-weight: 800;
  transform: translateY(-160%);
  transition: transform 0.2s ease;
}

.skip-link:focus {
  transform: translateY(0);
}

.section-shell {
  width: min(1180px, calc(100% - 40px));
  margin-inline: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  background: rgba(5, 11, 20, 0.68);
  backdrop-filter: blur(18px);
  transition: border-color 0.2s ease, background 0.2s ease;
}

.site-header.is-scrolled {
  border-color: var(--line);
  background: rgba(5, 11, 20, 0.9);
}

.nav-shell {
  display: flex;
  width: min(1180px, calc(100% - 40px));
  min-height: 72px;
  margin-inline: auto;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.88rem;
}

.brand-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #03100e;
  background: var(--teal);
  border-radius: 10px;
  font-weight: 900;
}

.brand-path {
  color: var(--muted);
}

.site-nav {
  display: flex;
  gap: 28px;
  align-items: center;
}

.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 700;
  transition: color 0.2s ease;
}

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

.site-nav .nav-cta {
  padding: 8px 14px;
  color: var(--teal);
  border: 1px solid rgba(49, 230, 207, 0.45);
  border-radius: 10px;
}

.menu-button {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
}

.menu-button > span:not(.sr-only) {
  display: block;
  height: 2px;
  margin: 5px 0;
  background: var(--text);
}

.hero {
  display: grid;
  min-height: calc(100vh - 72px);
  padding-block: 74px;
  grid-template-columns: minmax(0, 0.92fr) minmax(460px, 1.08fr);
  gap: clamp(44px, 6vw, 92px);
  align-items: center;
}

.eyebrow,
.section-index {
  margin: 0 0 18px;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.status-dot {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  background: var(--teal);
  border-radius: 50%;
  box-shadow: 0 0 0 5px rgba(49, 230, 207, 0.1), 0 0 16px var(--teal);
}

.hero h1 {
  max-width: 720px;
  margin: 0;
  color: var(--text);
  font-size: clamp(3rem, 5.7vw, 5.8rem);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.hero-title {
  max-width: 720px;
  margin: 20px 0 0;
  color: #c8d6df;
  font-size: clamp(1.62rem, 3vw, 3rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -0.045em;
}

.hero-title span {
  color: var(--teal);
}

.hero-lead {
  max-width: 690px;
  margin: 28px 0 0;
  color: #b7c7d3;
  font-size: clamp(1rem, 1.45vw, 1.18rem);
}

.role-line {
  min-height: 28px;
  margin: 22px 0 0;
  color: var(--amber);
  font-family: var(--mono);
}

.prompt {
  margin-right: 10px;
  color: var(--teal);
}

.cursor {
  display: inline-block;
  width: 9px;
  height: 1.05em;
  margin-left: 5px;
  vertical-align: -0.16em;
  background: var(--amber);
  animation: blink 0.8s steps(1) infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-actions {
  margin-top: 30px;
}

.button {
  display: inline-flex;
  min-height: 46px;
  padding: 0 18px;
  align-items: center;
  justify-content: center;
  border-radius: 11px;
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 800;
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
}

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

.button-primary {
  color: #02100e;
  background: var(--teal);
  box-shadow: 0 14px 40px rgba(49, 230, 207, 0.18);
}

.button-ghost {
  color: var(--text);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
}

.button-ghost:hover {
  border-color: rgba(49, 230, 207, 0.5);
  background: var(--teal-soft);
}

.text-link {
  color: var(--muted);
  text-decoration: none;
  font-family: var(--mono);
  font-size: 0.82rem;
  font-weight: 700;
}

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

.hero-visual {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid rgba(91, 140, 255, 0.26);
  border-radius: 22px;
  background: #020711;
  box-shadow: var(--shadow), 0 0 80px rgba(49, 230, 207, 0.06);
}

.hero-visual::after {
  position: absolute;
  inset: 0;
  content: "";
  pointer-events: none;
  background:
    repeating-linear-gradient(to bottom, transparent 0, transparent 3px, rgba(2, 7, 17, 0.18) 4px),
    linear-gradient(110deg, rgba(255,255,255,0.05), transparent 35%);
}

.hero-visual img {
  width: 100%;
  min-height: 360px;
  object-fit: cover;
  filter: saturate(0.88) contrast(1.04);
  transition: transform 8s ease;
}

.hero-visual:hover img {
  transform: scale(1.035);
}

.scanline {
  position: absolute;
  z-index: 2;
  top: -12%;
  right: 0;
  left: 0;
  height: 14%;
  pointer-events: none;
  opacity: 0.5;
  background: linear-gradient(to bottom, transparent, rgba(49, 230, 207, 0.12), transparent);
  animation: scan 5s linear infinite;
}

@keyframes scan {
  to { transform: translateY(830%); }
}

.hero-visual figcaption {
  display: flex;
  position: absolute;
  z-index: 3;
  right: 14px;
  bottom: 12px;
  left: 14px;
  padding: 9px 12px;
  justify-content: space-between;
  color: #80a0b8;
  background: rgba(2, 7, 17, 0.82);
  border: 1px solid var(--line);
  border-radius: 9px;
  font-family: var(--mono);
  font-size: 0.66rem;
}

.section {
  padding-block: clamp(82px, 10vw, 138px);
  border-top: 1px solid var(--line);
}

.section-heading {
  display: grid;
  margin-bottom: clamp(34px, 5vw, 62px);
  grid-template-columns: 0.42fr 1fr;
  gap: 30px;
  align-items: start;
}

.section-heading h2,
.contact-section h2 {
  max-width: 800px;
  margin: 0;
  font-size: clamp(2rem, 4vw, 3.75rem);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 0.86fr;
  gap: clamp(36px, 7vw, 100px);
  align-items: start;
}

.about-copy p {
  margin: 0 0 20px;
  color: #bccbd5;
  font-size: 1.06rem;
}

.terminal-card {
  overflow: hidden;
  background: var(--panel-strong);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.terminal-bar {
  display: flex;
  gap: 7px;
  padding: 12px 15px;
  align-items: center;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.025);
  border-bottom: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.terminal-bar i {
  width: 8px;
  height: 8px;
  background: #ff6d65;
  border-radius: 50%;
}

.terminal-bar i:nth-child(2) { background: #f5c65d; }
.terminal-bar i:nth-child(3) { background: #5bd693; }
.terminal-bar span { margin-left: auto; }

.terminal-card dl {
  margin: 0;
  padding: 22px;
  font-family: var(--mono);
  font-size: 0.8rem;
}

.terminal-card dl div {
  display: grid;
  padding: 10px 0;
  grid-template-columns: 0.42fr 1fr;
  border-bottom: 1px dashed var(--line);
}

.terminal-card dl div:last-child { border-bottom: 0; }
.terminal-card dt { color: var(--teal); }
.terminal-card dd { margin: 0; color: #b6c8d5; }

.focus-grid,
.report-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.focus-card,
.project-card,
.report-card {
  position: relative;
  overflow: hidden;
  padding: clamp(24px, 3vw, 34px);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}

.focus-card:hover,
.project-card:hover,
.report-card:hover {
  border-color: rgba(49, 230, 207, 0.42);
  background: rgba(14, 34, 52, 0.9);
  transform: translateY(-5px);
}

.card-number {
  display: block;
  margin-bottom: 42px;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.focus-card h3,
.project-card h3,
.report-card h3 {
  margin: 0 0 12px;
  font-size: 1.35rem;
}

.focus-card p,
.project-card p,
.report-card p {
  color: var(--muted);
}

.focus-card ul,
.project-tags {
  display: flex;
  gap: 8px;
  padding: 0;
  margin: 24px 0 0;
  flex-wrap: wrap;
  list-style: none;
}

.focus-card li,
.project-tags span {
  padding: 5px 9px;
  color: #9fb4c2;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line);
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 0.68rem;
}

.project-list {
  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  gap: 18px;
}

.project-card {
  min-height: 380px;
  padding: clamp(28px, 4vw, 48px);
}

.project-featured {
  background:
    radial-gradient(circle at 90% 10%, rgba(49, 230, 207, 0.12), transparent 18rem),
    var(--panel);
}

.project-meta {
  display: flex;
  gap: 14px;
  margin-bottom: 74px;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
}

.project-card h3 {
  font-size: clamp(2rem, 4vw, 3.4rem);
  letter-spacing: -0.04em;
}

.project-card p {
  max-width: 590px;
}

.project-card .text-link {
  display: inline-block;
  margin-top: 30px;
  color: var(--teal);
}

.report-card {
  min-height: 300px;
  color: inherit;
  text-decoration: none;
}

.report-card > span {
  color: var(--teal);
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
}

.report-card h3 {
  margin-top: 54px;
  font-size: 1.45rem;
}

.report-card b {
  position: absolute;
  right: 28px;
  bottom: 24px;
  color: var(--amber);
  font-family: var(--mono);
  font-size: 0.75rem;
}

.all-reports {
  width: fit-content;
  margin-top: 22px;
}

.contact-section {
  display: grid;
  min-height: 560px;
  align-content: center;
  text-align: center;
}

.contact-section .section-index {
  margin-inline: auto;
}

.contact-section h2 {
  margin-inline: auto;
}

.contact-section > p:not(.section-index) {
  max-width: 620px;
  margin: 22px auto 30px;
  color: var(--muted);
}

.contact-mail {
  display: inline-flex;
  gap: 18px;
  margin-inline: auto;
  align-items: center;
  color: var(--teal);
  text-decoration-thickness: 1px;
  text-underline-offset: 8px;
  font-size: clamp(1.15rem, 3vw, 2rem);
  font-weight: 800;
}

.contact-mail span {
  transition: transform 0.2s ease;
}

.contact-mail:hover span {
  transform: translate(4px, -4px);
}

.profile-links {
  display: flex;
  width: 100%;
  margin: 48px auto 0;
  gap: 14px;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
}

.profile-links a {
  display: grid;
  width: 66px;
  height: 66px;
  flex: 0 0 66px;
  place-items: center;
  background: rgba(255, 255, 255, 0.022);
  border: 1px solid rgba(141, 162, 179, 0.28);
  border-radius: 50%;
  box-shadow: inset 0 0 0 5px rgba(49, 230, 207, 0.025);
  transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.profile-links a:hover {
  background: var(--teal-soft);
  border-color: rgba(49, 230, 207, 0.7);
  box-shadow: inset 0 0 0 5px rgba(49, 230, 207, 0.08), 0 10px 28px rgba(49, 230, 207, 0.12);
  transform: translateY(-4px);
}

.profile-links img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  transition: transform 0.2s ease;
}

.profile-links a:hover img {
  transform: scale(1.08);
}

.site-footer {
  display: flex;
  padding-block: 26px 36px;
  justify-content: space-between;
  color: #6f8799;
  border-top: 1px solid var(--line);
  font-family: var(--mono);
  font-size: 0.72rem;
}

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (max-width: 980px) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .hero-visual {
    max-width: 780px;
  }

  .focus-grid,
  .report-grid {
    grid-template-columns: 1fr 1fr;
  }

  .focus-card:last-child,
  .report-card:last-child {
    grid-column: 1 / -1;
  }

  .project-list,
  .about-grid {
    grid-template-columns: 1fr;
  }

}

@media (max-width: 760px) {
  .section-shell,
  .nav-shell {
    width: min(100% - 28px, 1180px);
  }

  .menu-button {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: 64px;
    right: 14px;
    left: 14px;
    padding: 18px;
    flex-direction: column;
    align-items: stretch;
    background: rgba(7, 17, 31, 0.98);
    border: 1px solid var(--line);
    border-radius: 14px;
    box-shadow: var(--shadow);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav a {
    padding: 10px 8px;
  }

  .hero {
    padding-block: 54px 82px;
    grid-template-columns: minmax(0, 1fr);
  }

  .hero h1 {
    font-size: clamp(2.45rem, 12vw, 4rem);
  }

  .hero-title {
    font-size: clamp(1.55rem, 7.4vw, 2.45rem);
  }

  .hero-visual img {
    min-height: 270px;
  }

  .hero-visual figcaption span:nth-child(2) {
    display: none;
  }

  .section-heading {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .focus-grid,
  .report-grid {
    grid-template-columns: 1fr;
  }

  .focus-card:last-child,
  .report-card:last-child {
    grid-column: auto;
  }

  .project-card {
    min-height: auto;
  }

  .project-meta {
    margin-bottom: 44px;
  }

  .site-footer {
    gap: 8px;
    flex-direction: column;
  }

}

@media (max-width: 440px) {
  .hero-actions .button {
    width: 100%;
  }

  .hero-visual figcaption {
    font-size: 0.56rem;
  }

  .terminal-card dl div {
    grid-template-columns: 1fr;
    gap: 4px;
  }

  .profile-links a {
    width: 56px;
    height: 56px;
    flex-basis: 56px;
  }

  .profile-links {
    gap: 10px;
  }

  .profile-links img {
    width: 24px;
    height: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .reveal { opacity: 1; transform: none; }
}