:root {
  --bg: #0d0f16;
  --shell: #171923;
  --panel: #20222e;
  --panel-soft: #262936;
  --panel-deep: #141620;
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);
  --text: #f4f6fb;
  --muted: #a8afc1;
  --quiet: #798094;
  --accent: #28c7b7;
  --accent-2: #f4ba4d;
  --accent-3: #e75d59;
  --warm: #b982ff;
  --shadow: 0 34px 90px rgba(0, 0, 0, 0.42);
  --sans: "Segoe UI", Inter, Arial, Helvetica, sans-serif;
  --mono: "Cascadia Mono", Consolas, "Courier New", monospace;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  overflow-x: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  letter-spacing: 0;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 54px 54px;
  mask-image: radial-gradient(circle at center, #000 0%, rgba(0, 0, 0, 0.72) 45%, transparent 82%);
  pointer-events: none;
}

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

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

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

::selection {
  background: var(--accent);
  color: #07100f;
}

* {
  scrollbar-color: rgba(40, 199, 183, 0.62) rgba(20, 22, 32, 0.82);
  scrollbar-width: thin;
}

::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent),
    var(--panel-deep);
  border-left: 1px solid var(--line);
}

::-webkit-scrollbar-thumb {
  min-height: 44px;
  border: 3px solid var(--panel-deep);
  border-radius: 999px;
  background: linear-gradient(180deg, var(--accent), rgba(40, 199, 183, 0.38));
}

::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
}

::-webkit-scrollbar-corner {
  background: var(--panel-deep);
}

.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;
}

.site-bg {
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(40, 199, 183, 0.18), transparent 24%),
    radial-gradient(circle at 86% 22%, rgba(244, 186, 77, 0.12), transparent 22%),
    radial-gradient(circle at 70% 86%, rgba(231, 93, 89, 0.1), transparent 24%);
  filter: blur(2px);
  pointer-events: none;
}

.cv-shell {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 310px minmax(0, 890px);
  width: min(1200px, calc(100vw - 42px));
  height: min(800px, calc(100vh - 42px));
  min-height: 650px;
  border: 1px solid var(--line-strong);
  background: var(--shell);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.profile-panel {
  position: relative;
  display: grid;
  grid-template-rows: auto auto auto 1fr auto auto;
  gap: 18px;
  align-content: start;
  padding: 34px 30px 26px;
  border-right: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(40, 199, 183, 0.08), transparent 32%),
    var(--panel-deep);
}

.profile-panel::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(0deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 28px 28px;
  opacity: 0.5;
  pointer-events: none;
}

.portrait-ring,
.profile-panel h1,
.role-rotator,
.side-nav,
.profile-actions,
.linkedin-link {
  position: relative;
  z-index: 1;
}

.portrait-ring {
  width: 178px;
  height: 178px;
  margin: 0 auto 4px;
  padding: 8px;
  border: 2px solid rgba(40, 199, 183, 0.58);
  border-radius: 50%;
  background:
    conic-gradient(from 120deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent));
  box-shadow: 0 20px 48px rgba(0, 0, 0, 0.38);
}

.portrait-ring img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 12%;
  border: 7px solid var(--panel-deep);
  border-radius: 50%;
}

.profile-panel h1 {
  margin: 0;
  text-align: center;
  font-size: 1.9rem;
  line-height: 1.1;
  font-weight: 700;
}

.role-rotator {
  min-height: 28px;
  margin: -7px 0 8px;
  color: var(--muted);
  text-align: center;
  font-size: 0.98rem;
}

.role-rotator span {
  display: inline-block;
  transition: opacity 180ms ease, transform 180ms ease;
}

.role-rotator span.is-changing {
  opacity: 0;
  transform: translateY(4px);
}

.side-nav {
  display: grid;
  gap: 9px;
  margin-top: 6px;
}

.side-nav a {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 46px;
  padding: 0 16px 0 28px;
  border: 1px solid transparent;
  color: var(--muted);
  font-size: 0.94rem;
  transition: color 180ms ease, background 180ms ease, border-color 180ms ease, transform 180ms ease;
}

.side-nav a::before {
  content: "";
  position: absolute;
  left: 12px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--quiet);
  transition: background 180ms ease, box-shadow 180ms ease;
}

.side-nav a:hover,
.side-nav a.active {
  border-color: rgba(40, 199, 183, 0.36);
  background: rgba(40, 199, 183, 0.08);
  color: var(--text);
  transform: translateX(2px);
}

.side-nav a:hover::before,
.side-nav a.active::before {
  background: var(--accent);
  box-shadow: 0 0 16px rgba(40, 199, 183, 0.7);
}

.profile-actions {
  display: grid;
  grid-template-columns: 1fr 86px;
  gap: 10px;
}

.action-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text);
  font-size: 0.86rem;
  font-weight: 600;
  transition: border-color 180ms ease, color 180ms ease, background 180ms ease, transform 180ms ease;
}

.action-link:first-child {
  border-color: var(--accent);
}

.action-link:hover {
  background: rgba(40, 199, 183, 0.12);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-2px);
}

.linkedin-link {
  justify-self: center;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 10px 14px;
  border: 1px solid rgba(10, 102, 194, 0.55);
  background: rgba(10, 102, 194, 0.1);
  color: var(--text);
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.linkedin-link:hover {
  transform: translateY(-2px);
  border-color: #0a66c2;
  background: rgba(10, 102, 194, 0.22);
}

.linkedin-link svg {
  width: 28px;
  height: 28px;
  border-radius: 4px;
  background: #0a66c2;
  fill: #fff;
}

.linkedin-link span {
  font-size: 0.92rem;
}

.content-panel {
  position: relative;
  min-width: 0;
  background: var(--panel);
  overflow: hidden;
}

.page {
  position: absolute;
  inset: 0;
  display: none;
  overflow-y: auto;
  padding: clamp(30px, 5vw, 58px);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.025), transparent 260px),
    var(--panel);
}

.page,
.contact-form textarea {
  scrollbar-color: rgba(244, 186, 77, 0.66) rgba(255, 255, 255, 0.055);
}

.page::-webkit-scrollbar,
.contact-form textarea::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

.page::-webkit-scrollbar-track,
.contact-form textarea::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.045);
  border-left: 1px solid rgba(255, 255, 255, 0.05);
}

.page::-webkit-scrollbar-thumb,
.contact-form textarea::-webkit-scrollbar-thumb {
  border: 2px solid var(--panel);
  background: linear-gradient(180deg, rgba(244, 186, 77, 0.95), rgba(40, 199, 183, 0.72));
}

.page::-webkit-scrollbar-thumb:hover,
.contact-form textarea::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--accent-2), var(--accent));
}

.page.active {
  display: block;
  animation: pageIn 280ms ease both;
}

@keyframes pageIn {
  from {
    opacity: 0;
    transform: translateX(14px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.home-page {
  display: none;
  place-items: center;
  text-align: center;
  overflow: hidden;
}

.home-page.active {
  display: grid;
}

.home-page::before {
  content: "";
  position: absolute;
  inset: 28px;
  border: 1px solid var(--line);
  pointer-events: none;
}

.home-page::after {
  content: "";
  position: absolute;
  width: 58%;
  height: 1px;
  bottom: 28%;
  left: 21%;
  background: linear-gradient(90deg, transparent, rgba(40, 199, 183, 0.7), transparent);
  pointer-events: none;
}

.home-content {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
}

.home-content h2 {
  margin: 0;
  font-size: clamp(3.2rem, 8vw, 6.4rem);
  line-height: 0.92;
  font-weight: 800;
}

.home-role {
  min-height: 32px;
  margin: 24px 0 0;
  color: var(--muted);
  font-size: clamp(1.05rem, 2vw, 1.32rem);
}

.home-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-top: 32px;
}

.home-tags span,
.knowledge-cloud span {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 8px 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.035);
  color: var(--muted);
  font-size: 0.82rem;
}

.page-title {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 22px;
  margin-bottom: 34px;
}

.page-title h2 {
  margin: 0;
  color: var(--text);
  font-size: clamp(2.15rem, 5vw, 3.8rem);
  line-height: 1;
}

.page-title span {
  flex: 1;
  height: 1px;
  min-width: 80px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(260px, 0.85fr);
  gap: 28px;
}

.about-copy p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.75;
}

.info-list {
  display: grid;
  gap: 1px;
  margin: 0;
  border: 1px solid var(--line);
  background: var(--line);
}

.info-list div {
  display: grid;
  grid-template-columns: 86px minmax(0, 1fr);
  gap: 12px;
  padding: 13px 14px;
  background: var(--panel-soft);
}

.info-list dt {
  color: var(--accent-2);
  font-family: var(--mono);
  font-size: 0.72rem;
  text-transform: uppercase;
}

.info-list dd {
  margin: 0;
  color: var(--muted);
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.block-title {
  position: relative;
  margin: 0 0 22px;
  padding-bottom: 12px;
  color: var(--text);
  font-size: 1.24rem;
}

.block-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 42px;
  height: 3px;
  background: var(--accent);
}

.block-spaced {
  margin-top: 38px;
}

.service-grid,
.certificate-list {
  display: grid;
  gap: 18px;
}

.service-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 8px;
}

.service-grid article,
.certificate-list article,
.contact-form,
.availability-panel {
  border: 1px solid var(--line);
  background: var(--panel-soft);
}

.service-grid article {
  min-height: 170px;
  padding: 22px;
}

.service-grid span {
  color: var(--accent);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
}

.service-grid h4,
.certificate-list h4,
.availability-panel h3 {
  margin: 14px 0 10px;
  color: var(--text);
  font-size: 1.05rem;
}

.service-grid p,
.certificate-list p,
.availability-panel p,
.timeline-detail p,
.timeline-detail li {
  color: var(--muted);
  line-height: 1.62;
}

.resume-grid,
.skills-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, 0.92fr);
  gap: 34px;
}

.timeline-item {
  position: relative;
  padding: 0 0 26px 28px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  top: 7px;
  left: 4px;
  bottom: -7px;
  width: 1px;
  background: var(--line-strong);
}

.timeline-item::after {
  content: "";
  position: absolute;
  top: 7px;
  left: 0;
  width: 9px;
  height: 9px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  background: var(--panel);
  box-shadow: 0 0 0 6px rgba(40, 199, 183, 0.09);
}

.timeline-item:last-child::before {
  display: none;
}

.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 12px;
  margin-bottom: 7px;
}

.timeline-meta span {
  color: var(--accent-2);
  font-family: var(--mono);
  font-size: 0.76rem;
  font-weight: 700;
}

.timeline-meta small {
  color: var(--quiet);
  font-size: 0.78rem;
}

.timeline-toggle {
  display: block;
  width: 100%;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  font-size: 1.03rem;
  font-weight: 700;
}

.timeline-toggle:hover {
  color: var(--accent);
}

.timeline-detail {
  display: none;
  padding-top: 10px;
}

.timeline-item.open .timeline-detail {
  display: block;
}

.timeline-detail p {
  margin: 0 0 10px;
}

.timeline-detail ul {
  display: grid;
  gap: 8px;
  margin: 0;
  padding-left: 18px;
}

.certificate-list article {
  padding: 18px;
}

.certificate-list h4 {
  margin-top: 0;
}

.certificate-list p {
  margin: 0;
}

.technical-groups {
  display: grid;
  gap: 14px;
}

.technical-card {
  position: relative;
  min-height: 148px;
  padding: 18px;
  overflow: hidden;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(40, 199, 183, 0.08), transparent 58%),
    var(--panel-soft);
}

.technical-card::after {
  content: "";
  position: absolute;
  top: 18px;
  right: 18px;
  width: 32px;
  height: 32px;
  border-top: 1px solid rgba(40, 199, 183, 0.42);
  border-right: 1px solid rgba(40, 199, 183, 0.42);
}

.technical-card span {
  display: block;
  margin-bottom: 12px;
  color: var(--accent-2);
  font-family: var(--mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
}

.technical-card h4 {
  margin: 0 0 9px;
  color: var(--text);
  font-size: 1rem;
}

.technical-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.58;
}

.knowledge-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
}

.knowledge-cloud span {
  border-color: rgba(40, 199, 183, 0.2);
}

.knowledge-cloud.warm span {
  border-color: rgba(244, 186, 77, 0.2);
  background: rgba(244, 186, 77, 0.055);
}

.contact-form {
  position: relative;
  display: grid;
  gap: 16px;
  padding: 24px;
}

.field-pair {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 8px;
}

.contact-form label span {
  color: var(--accent-2);
  font-family: var(--mono);
  font-size: 0.74rem;
  font-weight: 700;
  text-transform: uppercase;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line-strong);
  background: rgba(13, 15, 22, 0.54);
  color: var(--text);
  outline: none;
  padding: 13px 14px;
  resize: vertical;
  transition: border-color 180ms ease, box-shadow 180ms ease, background 180ms ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: rgba(40, 199, 183, 0.72);
  background: rgba(13, 15, 22, 0.78);
  box-shadow: 0 0 0 4px rgba(40, 199, 183, 0.12);
}

.contact-form input.is-invalid,
.contact-form textarea.is-invalid {
  border-color: rgba(231, 93, 89, 0.78);
  box-shadow: 0 0 0 4px rgba(231, 93, 89, 0.1);
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.form-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 11px 16px;
  border: 1px solid var(--line-strong);
  background: transparent;
  color: var(--text);
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.form-submit {
  border-color: var(--accent);
  background: rgba(40, 199, 183, 0.1);
}

.form-submit:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  background: rgba(40, 199, 183, 0.14);
}

.form-status {
  min-height: 22px;
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.form-status.is-error {
  color: #ff9a94;
}

.form-status.is-success {
  color: var(--accent);
}

.availability-panel {
  margin-top: 26px;
  padding: 26px;
}

.availability-panel h3 {
  margin: 0 0 12px;
  font-size: 1.46rem;
}

.availability-panel p:last-child {
  margin-bottom: 0;
}

.mobile-menu {
  display: none;
  position: fixed;
  top: 16px;
  right: 16px;
  z-index: 20;
  width: 48px;
  height: 48px;
  border: 1px solid var(--line-strong);
  background: rgba(20, 22, 32, 0.92);
}

.mobile-menu span:not(.sr-only) {
  display: block;
  width: 20px;
  height: 2px;
  margin: 5px auto;
  background: var(--text);
}

@media (max-width: 980px) {
  body {
    display: block;
    min-height: auto;
    padding: 18px;
  }

  .cv-shell {
    width: 100%;
    height: auto;
    min-height: 0;
    grid-template-columns: 1fr;
    overflow: visible;
  }

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

  .side-nav {
    display: none;
  }

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

  .mobile-menu {
    display: block;
  }

  .content-panel {
    min-height: 760px;
  }

  .page {
    min-height: 760px;
  }

  .about-layout,
  .resume-grid,
  .skills-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  body {
    padding: 10px;
  }

  .profile-panel,
  .page {
    padding: 26px 18px;
  }

  .portrait-ring {
    width: 146px;
    height: 146px;
  }

  .profile-actions,
  .service-grid,
  .field-pair {
    grid-template-columns: 1fr;
  }

  .home-page::before {
    inset: 16px;
  }

  .home-content h2 {
    font-size: clamp(2.7rem, 15vw, 4.2rem);
  }

  .page-title {
    display: block;
  }

  .page-title span {
    display: block;
    width: 120px;
    margin-top: 14px;
  }

  .info-list div {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}

@media print {
  body {
    display: block;
    padding: 0;
    background: white;
    color: black;
  }

  body::before,
  .site-bg,
  .mobile-menu,
  .side-nav,
  .profile-actions {
    display: none !important;
  }

  .cv-shell {
    display: block;
    width: 100%;
    height: auto;
    min-height: 0;
    border: 0;
    box-shadow: none;
    background: white;
  }

  .profile-panel {
    display: block;
    padding: 20px 0;
    border: 0;
    background: white;
    color: black;
    text-align: left;
  }

  .profile-panel::after,
  .portrait-ring,
  .role-rotator,
  .linkedin-link {
    display: none;
  }

  .profile-panel h1 {
    text-align: left;
  }

  .content-panel {
    overflow: visible;
    background: white;
  }

  .page,
  .page.active,
  .home-page.active {
    position: static;
    display: block !important;
    min-height: 0;
    padding: 18px 0;
    overflow: visible;
    animation: none;
    background: white;
    color: black;
  }

  .home-page,
  .home-page::before,
  .home-page::after {
    display: none !important;
  }

  .page-title h2,
  .block-title,
  .timeline-toggle,
  .service-grid h4,
  .certificate-list h4,
  .availability-panel h3 {
    color: black;
  }

  .page-title span,
  .block-title::after {
    background: #333;
  }

  .service-grid,
  .resume-grid,
  .skills-layout,
  .field-pair {
    grid-template-columns: 1fr;
  }

  .service-grid article,
  .certificate-list article,
  .contact-form,
  .availability-panel,
  .info-list,
  .info-list div {
    break-inside: avoid;
    border-color: #bbb;
    background: white;
    color: black;
  }

  .timeline-detail,
  .timeline-item.open .timeline-detail {
    display: block;
  }

  .about-copy p,
  .info-list dd,
  .service-grid p,
  .certificate-list p,
  .availability-panel p,
  .timeline-detail p,
  .timeline-detail li,
  .home-role {
    color: black;
  }
}