:root {
  --bg: #060b17;
  --bg-2: #0b1020;
  --surface: rgba(13, 19, 34, 0.88);
  --surface-2: rgba(18, 26, 46, 0.92);
  --text: #f4f7ff;
  --muted: #aeb8d0;
  --brand: #7dd3fc;
  --brand-2: #a78bfa;
  --accent: #ffcc8a;
  --card: rgba(10, 17, 31, 0.9);
  --border: rgba(124, 145, 255, 0.18);
  --ring: #7dd3fc;

  --radius: 22px;
  --radius-sm: 14px;
  --space-1: 0.4rem;
  --space-2: 0.8rem;
  --space-3: 1.2rem;
  --space-4: 1.6rem;
  --space-5: 2.4rem;
  --space-6: 3.2rem;
  --maxw: 1200px;

  --title-gradient: linear-gradient(90deg, #8ec5ff 0%, #b49cff 100%);
  --hero-gradient: linear-gradient(90deg, #f3b6cb 0%, #ffc98f 55%, #ffe3a3 100%);
  --button-gradient: linear-gradient(90deg, #7dd3fc 0%, #60a5fa 45%, #a78bfa 100%);
  --shadow-1: 0 10px 30px rgba(0, 0, 0, 0.25);
  --shadow-2: 0 24px 60px rgba(0, 0, 0, 0.35);
}

@media (prefers-color-scheme: light) {
  html[data-theme="auto"] {
    --bg: #f5f7fc;
    --bg-2: #edf2fb;
    --surface: rgba(255, 255, 255, 0.92);
    --surface-2: rgba(255, 255, 255, 0.98);
    --text: #0f172a;
    --muted: #51607c;
    --card: rgba(255, 255, 255, 0.94);
    --border: rgba(148, 163, 184, 0.22);
    --ring: #7c3aed;
    --shadow-1: 0 10px 30px rgba(15, 23, 42, 0.08);
    --shadow-2: 0 24px 60px rgba(15, 23, 42, 0.12);
  }

  html[data-theme="auto"] body {
    background:
      radial-gradient(120rem 80rem at 15% 10%, rgba(108, 99, 255, 0.08), transparent 65%),
      radial-gradient(100rem 70rem at 85% 15%, rgba(110, 231, 255, 0.08), transparent 68%),
      radial-gradient(90rem 60rem at 50% 100%, rgba(167, 139, 250, 0.05), transparent 70%),
      linear-gradient(180deg, #f7f9fd 0%, #eef3fb 100%);
  }
}

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

html,
body {
  min-height: 100%;
  margin: 0;
}

html {
  scroll-behavior: smooth;
  background-color: var(--bg);
}

body {
  overflow-x: hidden;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  line-height: 1.65;
  letter-spacing: 0.01em;
  background:
    radial-gradient(120rem 80rem at 15% 10%, rgba(108, 99, 255, 0.1), transparent 65%),
    radial-gradient(100rem 70rem at 85% 15%, rgba(110, 231, 255, 0.08), transparent 68%),
    radial-gradient(90rem 60rem at 50% 100%, rgba(167, 139, 250, 0.06), transparent 70%),
    linear-gradient(180deg, #07090d 0%, #0b0d10 100%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

button,
input,
textarea,
select {
  font: inherit;
}

:focus-visible {
  outline: 2px solid var(--ring);
  outline-offset: 2px;
  border-radius: 8px;
}

h1,
h2,
h3,
h4,
h5,
h6,
strong {
  color: var(--text);
  line-height: 1.15;
  margin-top: 0;
}

p,
li,
span,
small {
  color: var(--muted);
}

h1 {
  font-size: clamp(2.2rem, 5.5vw, 4rem);
}

h2 {
  font-size: clamp(1.8rem, 3.4vw, 2.8rem);
}

h3 {
  font-size: clamp(1.08rem, 2vw, 1.35rem);
}

p {
  margin-top: 0;
}

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

.mt-1 {
  margin-top: 1rem;
}

.stack-xs {
  display: grid;
  gap: 0.4rem;
}

.rounded {
  border-radius: 12px;
}

.container {
  width: min(var(--maxw), calc(100% - 32px));
  margin: 0 auto;
}

section {
  padding: clamp(3.5rem, 5vw, 6rem) 0;
}

.skip {
  position: absolute;
  left: -9999px;
}

.skip:focus {
  left: 1rem;
  top: 1rem;
  z-index: 9999;
  padding: 0.6rem 1rem;
  border-radius: 10px;
  background: var(--surface-2);
  color: var(--text);
}

.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: saturate(160%) blur(16px);
  background: rgba(5, 10, 20, 0.72);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  min-height: 76px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  position: relative;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  background: var(--title-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-size: 1.9rem;
  white-space: nowrap;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.nav-links {
  display: flex;
  gap: 0.7rem;
  align-items: center;
}

.nav-links a {
  color: var(--text);
  opacity: 0.92;
  padding: 0.55rem 0.85rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  transition: 0.2s ease;
}

.nav-links a:hover {
  opacity: 1;
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--brand);
}

.lang-toggle {
  display: inline-grid;
  place-items: center;
  min-width: 62px;
  height: 44px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  padding: 0 0.95rem;
  border-radius: 14px;
  cursor: pointer;
  font-weight: 700;
  transition: 0.2s ease;
}

.lang-toggle:hover {
  border-color: var(--ring);
}

.menu-toggle {
  display: none;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  transition: 0.2s ease;
}

.menu-toggle span {
  display: block;
  width: 19px;
  height: 2px;
  border-radius: 999px;
  background: var(--text);
  transition: 0.25s ease;
}

.menu-toggle:hover {
  border-color: var(--ring);
}

.hero-section {
  padding-top: clamp(2.5rem, 5vw, 5rem);
}

.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: var(--space-6);
  align-items: center;
}

.title {
  font-size: clamp(2.4rem, 5.5vw, 4.3rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.03;
  background: var(--hero-gradient);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: hue 12s ease-in-out infinite alternate;
}

.lead {
  max-width: 62ch;
}

@keyframes hue {
  to {
    background-position: 100% 0;
  }
}

.hero-card {
  position: relative;
  border-radius: var(--radius);
  padding: 2px;
  background:
    conic-gradient(
      from 0turn,
      color-mix(in oklab, var(--brand) 70%, transparent),
      color-mix(in oklab, var(--brand-2) 70%, transparent),
      color-mix(in oklab, var(--accent) 65%, transparent),
      color-mix(in oklab, var(--brand) 70%, transparent)
    );
  box-shadow: var(--shadow-2);
  overflow: hidden;
}

.hero-inner {
  border-radius: inherit;
  background: var(--card);
  padding: clamp(1.2rem, 3vw, 2rem);
  display: grid;
  gap: var(--space-3);
  box-shadow: var(--shadow-1);
}

.hero-photo {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
}

.cta {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-grid;
  place-items: center;
  gap: 0.5rem;
  grid-auto-flow: column;
  min-height: 52px;
  padding: 0 1.1rem;
  border-radius: 16px;
  font-weight: 700;
  border: 1px solid var(--border);
  color: var(--text);
  background:
    linear-gradient(
      to bottom right,
      color-mix(in oklab, var(--surface), transparent 10%),
      color-mix(in oklab, var(--bg), transparent 55%)
    );
  transition: transform 0.15s ease, border-color 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
  border-color: color-mix(in oklab, var(--brand) 60%, var(--border));
}

.btn.primary {
  color: #08111f;
  border: 0;
  background: var(--button-gradient);
}

.section-head {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.2rem;
}

.section-gap {
  margin-top: 2.2rem;
}

.kicker {
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #cfd8ee;
  font-size: 0.82rem;
}

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--space-4);
}

.card {
  grid-column: span 4;
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  background: linear-gradient(180deg, rgba(13, 20, 36, 0.95), rgba(10, 16, 29, 0.98));
  border: 1px solid var(--border);
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
  box-shadow: var(--shadow-1);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-2);
  border-color: color-mix(in oklab, var(--brand) 40%, var(--border));
}

.card-media {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-bottom: 1px solid var(--border);
}

.card-body {
  padding: 1rem 1rem 1.2rem;
  display: grid;
  gap: 0.5rem;
}

.card-body h3,
.card-body strong {
  color: var(--text);
}

.card-body p,
.card-body span,
.card-body small {
  color: var(--muted);
}

.chip {
  font-size: 0.75rem;
  color: var(--muted);
}

.timeline {
  display: grid;
  gap: var(--space-4);
  border-left: 2px dashed color-mix(in oklab, var(--border), var(--muted) 10%);
  padding-left: var(--space-4);
}

.tl-item {
  position: relative;
}

.tl-item::before {
  content: "";
  position: absolute;
  left: -1.08rem;
  top: 0.38rem;
  width: 0.78rem;
  height: 0.78rem;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 30%, var(--brand), var(--brand-2));
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--brand) 15%, transparent);
}

.tl-item h3,
.tl-item strong {
  color: var(--text);
}

.tl-item p,
.tl-item span,
.tl-item li {
  color: var(--muted);
}

.skills {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(190px, 1fr));
  gap: var(--space-3);
}

.pill {
  min-height: 58px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.9rem 1rem;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, 0.025);
  text-align: center;
  color: var(--text);
  box-shadow: var(--shadow-1);
}

.contact-info {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1rem;
}

.contact-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  background: var(--card);
  box-shadow: var(--shadow-1);
}

.contact-card h3,
.contact-card strong {
  margin-bottom: 0.45rem;
  color: var(--text);
}

.contact-card p,
.contact-card span {
  margin: 0;
  color: var(--muted);
}

.contact-card a {
  color: var(--text);
  text-decoration: none;
  overflow-wrap: anywhere;
}

.contact-card a:hover {
  text-decoration: underline;
}

footer {
  padding: 2rem 0 3rem;
  color: var(--muted);
  border-top: 1px solid var(--border);
  text-align: center;
  background: transparent;
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

.projects {
  container-type: inline-size;
}

@container (max-width: 640px) {
  .card-body {
    padding: 0.9rem;
  }
}

@media (max-width: 960px) {
  .hero {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }

  .grid .card {
    grid-column: span 6;
  }
}

@media (max-width: 768px) {
  html {
    font-size: 15px;
  }

  body.menu-open {
    overflow: hidden;
  }

  .container {
    width: min(100% - 20px, var(--maxw));
  }

  section {
    padding: 2.8rem 0;
  }

  .nav-inner {
    min-height: 70px;
  }

  .brand {
    font-size: 1.4rem;
    max-width: 170px;
    white-space: normal;
    line-height: 1.05;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: calc(100% + 0.6rem);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 0.5rem;
    padding: 0.8rem;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: rgba(8, 13, 24, 0.98);
    box-shadow: var(--shadow-2);
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    width: 100%;
    padding: 0.95rem 1rem;
    text-align: center;
    border: 1px solid var(--border);
    background: rgba(255, 255, 255, 0.03);
    border-radius: 14px;
  }

  .title {
    font-size: clamp(1.95rem, 9vw, 2.8rem);
    line-height: 1.06;
  }

  .kicker {
    font-size: 0.72rem;
    letter-spacing: 0.12em;
  }

  .muted,
  p,
  li,
  span {
    font-size: 0.98rem;
  }

  .hero-inner {
    padding: 1rem;
  }

  .hero-inner img,
  .rounded {
    width: 100%;
    height: auto;
  }

  .cta {
    flex-direction: column;
    align-items: stretch;
  }

  .cta .btn,
  .btn {
    width: 100%;
    justify-content: center;
    min-height: 52px;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.7rem;
    margin-bottom: 1rem;
  }

  .timeline {
    padding-left: 1rem;
    gap: 1rem;
  }

  .tl-item::before {
    left: -0.55rem;
    width: 0.6rem;
    height: 0.6rem;
  }

  .skills {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .pill {
    min-height: 52px;
    padding: 0.95rem 1rem;
    border-radius: 18px;
  }

  .grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .grid .card {
    grid-column: span 1;
  }

  .card {
    border-radius: 18px;
  }

  .card-media {
    aspect-ratio: 16 / 10;
    width: 100%;
    height: auto;
  }

  .card-body {
    padding: 0.95rem;
  }

  .contact-info {
    grid-template-columns: 1fr;
    gap: 0.8rem;
  }

  .contact-card {
    padding: 1rem;
    border-radius: 18px;
  }

  footer {
    padding: 1.5rem 0 2rem;
  }

  footer small {
    display: block;
    line-height: 1.5;
  }
}

@media (max-width: 420px) {
  .title {
    font-size: 1.72rem;
  }

  .brand {
    font-size: 1.2rem;
    max-width: 145px;
  }

  .btn,
  .lang-toggle {
    font-size: 0.95rem;
  }

  .lang-toggle {
    min-width: 54px;
    height: 42px;
    padding: 0 0.8rem;
    border-radius: 12px;
  }

  .menu-toggle {
    width: 42px;
    height: 42px;
    border-radius: 12px;
  }

  .hero-inner {
    padding: 0.9rem;
  }

  .card-body {
    padding: 0.85rem;
  }
}