:root {
  --page: #f6f7f4;
  --ink: #121417;
  --muted: #5d6570;
  --panel: #ffffff;
  --panel-soft: #eef2ed;
  --line: #dce1dc;
  --charcoal: #15191d;
  --green: #0a6b57;
  --coral: #d85c3b;
  --gold: #c49a35;
  --blue: #246b91;
  --shadow: 0 18px 48px rgba(18, 20, 23, 0.12);
  --radius: 8px;
  --max: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Manrope", sans-serif;
  color: var(--ink);
  background: var(--page);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    linear-gradient(90deg, rgba(18, 20, 23, 0.05) 1px, transparent 1px),
    linear-gradient(rgba(18, 20, 23, 0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  opacity: 0.55;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(135deg, rgba(10, 107, 87, 0.08), transparent 34%),
    linear-gradient(315deg, rgba(216, 92, 59, 0.08), transparent 28%);
  pointer-events: none;
}

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

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

button {
  font: inherit;
}

.site-header {
  position: fixed;
  top: 18px;
  left: 50%;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: calc(100% - 32px);
  min-height: 62px;
  padding: 10px 12px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: rgba(18, 20, 23, 0.86);
  color: #fff;
  transform: translateX(-50%);
  backdrop-filter: blur(18px);
  box-shadow: 0 18px 40px rgba(18, 20, 23, 0.24);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
}

.brand span {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: var(--radius);
  background: var(--green);
  color: #fff;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.88rem;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  padding: 10px 13px;
  border-radius: 6px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 0.92rem;
  font-weight: 700;
  transition:
    background-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.site-nav a:hover,
.site-nav a:focus-visible,
.site-nav a.is-active {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  transform: translateY(-1px);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius);
  background: transparent;
  color: #fff;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  margin: 5px auto;
  background: currentColor;
  transition:
    transform 180ms ease,
    opacity 180ms ease;
}

.nav-toggle[aria-expanded="true"] span:first-child {
  transform: translateY(7px) rotate(45deg);
}

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

.hero {
  position: relative;
  min-height: 88vh;
  padding: 140px max(24px, calc((100vw - var(--max)) / 2)) 70px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 56px;
  align-items: center;
  width: 100%;
  overflow: hidden;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(246, 247, 244, 0.98) 0%, rgba(246, 247, 244, 0.92) 42%, rgba(246, 247, 244, 0.5) 76%, rgba(246, 247, 244, 0.28) 100%),
    url("images/hero-backend-visual.svg") center / cover no-repeat;
}

.hero::before {
  content: "";
  position: absolute;
  left: 24px;
  right: 24px;
  bottom: 62px;
  height: 1px;
  background:
    linear-gradient(90deg, var(--green), transparent 34%),
    var(--line);
}

.hero-content,
.hero-status {
  position: relative;
  z-index: 1;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--coral);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h1,
.section-title h2,
.site-footer h2 {
  margin: 0;
  max-width: 900px;
  font-size: 5.8rem;
  line-height: 0.98;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 700px;
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 1.2rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 18px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-weight: 800;
  transition:
    transform 180ms ease,
    box-shadow 180ms ease,
    background-color 180ms ease,
    border-color 180ms ease;
}

.button-primary {
  background: var(--green);
  color: #fff;
  box-shadow: 0 14px 32px rgba(10, 107, 87, 0.32);
}

.button-secondary {
  border-color: var(--line);
  color: var(--ink);
  background: rgba(255, 255, 255, 0.58);
}

.button:hover,
.button:focus-visible {
  transform: translateY(-3px);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
}

.hero-status {
  display: grid;
  gap: 14px;
  align-self: center;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 18px 48px rgba(18, 20, 23, 0.08);
  backdrop-filter: blur(14px);
}

.hero-status p,
.hero-status strong,
.hero-status span {
  margin: 0;
}

.hero-status .status-title {
  color: var(--coral);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-status strong {
  color: var(--ink);
  font-size: 1.25rem;
  line-height: 1.35;
}

.hero-status > span {
  color: var(--muted);
  line-height: 1.6;
}

.status-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.status-stack span {
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #f8faf8;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
}

.section {
  padding: 96px 24px;
  border-bottom: 1px solid var(--line);
}

.section:nth-of-type(odd) {
  background: rgba(255, 255, 255, 0.44);
}

.section-inner {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.two-column {
  display: grid;
  grid-template-columns: 0.78fr 1.22fr;
  gap: 64px;
}

.section-title {
  max-width: 560px;
}

.section-title.compact {
  display: grid;
  grid-template-columns: 0.72fr 1fr;
  gap: 18px 48px;
  max-width: none;
  margin-bottom: 36px;
  align-items: end;
}

.section-title.compact .eyebrow {
  grid-column: 1 / -1;
  margin: 0;
}

.section-title h2,
.site-footer h2 {
  font-size: 3.4rem;
}

.section-title p:not(.eyebrow) {
  margin: 0;
  color: var(--muted);
  line-height: 1.7;
}

.about-copy > p {
  margin: 0;
  color: var(--muted);
  font-size: 1.08rem;
  line-height: 1.8;
}

.metric-row {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 30px;
}

.metric-card,
.project-card,
.timeline-item,
.skill-groups article {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 1px 0 rgba(18, 20, 23, 0.03);
}

.metric-card {
  padding: 18px;
}

.metric-card strong {
  display: block;
  margin-bottom: 10px;
  color: var(--green);
  font-family: "JetBrains Mono", monospace;
  font-size: 1.7rem;
}

.metric-card span {
  display: block;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.55;
}

.hover-card {
  transform-style: preserve-3d;
  transition:
    transform 220ms ease,
    box-shadow 220ms ease,
    border-color 220ms ease;
}

.hover-card:hover,
.hover-card:focus-within {
  border-color: rgba(10, 107, 87, 0.34);
  box-shadow: var(--shadow);
}

.timeline {
  display: grid;
  gap: 16px;
}

.timeline-item {
  display: grid;
  grid-template-columns: 220px 1fr;
  overflow: hidden;
}

.timeline-meta {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 18px;
  padding: 24px;
  border-right: 1px solid var(--line);
  background: var(--panel-soft);
}

.timeline-meta span,
.timeline-meta time,
.card-label {
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.timeline-meta span {
  color: var(--green);
}

.timeline-meta time {
  color: var(--muted);
}

.timeline-content {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 24px;
  padding: 24px;
}

.timeline-content img {
  height: 100%;
  min-height: 230px;
  object-fit: cover;
  border-radius: 6px;
  border: 1px solid var(--line);
}

.card-label {
  margin: 0 0 10px;
  color: var(--coral);
}

.timeline-content h3,
.project-card h3,
.skill-groups h3 {
  margin: 0;
  font-size: 1.35rem;
  line-height: 1.25;
}

.timeline-content p:not(.card-label),
.project-card p:not(.card-label),
.skill-groups p {
  margin: 12px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.timeline-content ul {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.timeline-content li {
  position: relative;
  padding-left: 18px;
  color: var(--muted);
  line-height: 1.6;
}

.timeline-content li::before {
  content: "";
  position: absolute;
  top: 10px;
  left: 0;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--green);
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.project-card {
  overflow: hidden;
}

.project-card > img,
.drive-preview {
  height: 230px;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
  transition:
    transform 260ms ease,
    filter 260ms ease;
}

.project-card:hover > img {
  transform: scale(1.035);
  filter: saturate(1.06);
}

.project-card-body {
  padding: 22px;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 18px;
}

.tag-row span {
  padding: 7px 9px;
  border: 1px solid var(--line);
  border-radius: 6px;
  color: var(--muted);
  background: #f8faf8;
  font-family: "JetBrains Mono", monospace;
  font-size: 0.74rem;
}

.project-card a {
  display: inline-flex;
  margin-top: 20px;
  color: var(--green);
  font-weight: 800;
}

.project-card a::after {
  content: "->";
  margin-left: 8px;
  transition: transform 180ms ease;
}

.project-card a:hover::after,
.project-card a:focus-visible::after {
  transform: translateX(4px);
}

.drive-preview {
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(90deg, transparent 49%, rgba(255, 255, 255, 0.14) 49%, rgba(255, 255, 255, 0.14) 51%, transparent 51%),
    linear-gradient(180deg, #262b30 0%, #0f1214 100%);
}

.drive-preview::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(90deg, transparent 0 44px, rgba(255, 255, 255, 0.06) 44px 46px),
    linear-gradient(180deg, rgba(36, 107, 145, 0.42), transparent 56%);
}

.lane {
  position: absolute;
  top: -30%;
  bottom: -30%;
  width: 2px;
  background: rgba(255, 255, 255, 0.36);
}

.lane-one {
  left: 35%;
  transform: rotate(12deg);
}

.lane-two {
  right: 35%;
  transform: rotate(-12deg);
}

.sensor {
  position: absolute;
  left: 50%;
  top: 50%;
  width: 160px;
  height: 160px;
  border: 1px solid rgba(94, 224, 173, 0.34);
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0.4);
  animation: scanPulse 2.8s ease-out infinite;
}

.sensor-two {
  animation-delay: 0.9s;
}

.sensor-three {
  animation-delay: 1.8s;
}

.skill-groups {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}

.skill-groups article {
  padding: 22px;
}

.skill-groups h3 {
  font-size: 1rem;
}

.site-footer {
  padding: 86px 24px;
  color: #fff;
  background: var(--charcoal);
}

.footer-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
  align-items: end;
}

.contact-links {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.contact-links a {
  padding: 18px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.86);
  font-weight: 800;
  transition:
    background-color 180ms ease,
    border-color 180ms ease,
    transform 180ms ease;
}

.contact-links a:hover,
.contact-links a:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(94, 224, 173, 0.48);
  transform: translateY(-3px);
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 600ms ease,
    transform 600ms ease;
}

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

@keyframes scanPulse {
  0% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(0.2);
  }
  35% {
    opacity: 1;
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(1.5);
  }
}

@media (max-width: 1020px) {
  .hero {
    grid-template-columns: 1fr;
    gap: 32px;
    min-height: auto;
    background:
      linear-gradient(180deg, rgba(246, 247, 244, 0.98) 0%, rgba(246, 247, 244, 0.9) 58%, rgba(246, 247, 244, 0.74) 100%),
      url("images/hero-backend-visual.svg") center top / cover no-repeat;
  }

  .hero h1 {
    font-size: 4.3rem;
  }

  .section-title h2,
  .site-footer h2 {
    font-size: 2.7rem;
  }

  .two-column,
  .section-title.compact,
  .footer-inner,
  .timeline-item,
  .timeline-content,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .timeline-meta {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .timeline-content img {
    height: 280px;
  }
}

@media (max-width: 720px) {
  .site-header {
    top: 10px;
    width: min(calc(100% - 20px), var(--max));
  }

  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: calc(100% + 8px);
    right: 0;
    display: none;
    width: min(280px, calc(100vw - 20px));
    padding: 8px;
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius);
    background: rgba(18, 20, 23, 0.96);
    box-shadow: 0 18px 40px rgba(18, 20, 23, 0.24);
  }

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

  .site-nav a {
    padding: 13px;
  }

  .hero {
    padding: 116px 18px 44px;
  }

  .hero h1 {
    font-size: 3.25rem;
  }

  .hero-lead {
    font-size: 1.05rem;
  }

  .hero-status {
    padding: 18px;
  }

  .section,
  .site-footer {
    padding: 70px 18px;
  }

  .section-title h2,
  .site-footer h2 {
    font-size: 2.15rem;
  }

  .metric-row,
  .skill-groups,
  .contact-links {
    grid-template-columns: 1fr;
  }

  .timeline-content {
    padding: 18px;
  }

  .timeline-content img,
  .project-card > img,
  .drive-preview {
    height: 210px;
  }
}

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

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

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