:root {
  --font-main: "Space Grotesk", "Segoe UI", sans-serif;
  --font-display: "Syncopate", "Space Grotesk", sans-serif;

  --bg-from: #04070f;
  --bg-mid: #081326;
  --bg-to: #04070f;
  --glow-cyan: rgba(36, 220, 255, 0.24);
  --glow-lime: transparent;

  --text: #e7f0ff;
  --muted: #96a9c8;
  --line: rgba(117, 227, 255, 0.24);
  --surface: rgba(9, 20, 36, 0.76);
  --surface-soft: rgba(11, 22, 40, 0.64);
  --chip-bg: rgba(8, 18, 32, 0.82);
  --navbar-bg: rgba(4, 11, 24, 0.76);

  --accent: #24dcff;
  --accent-alt: #c8ff4f;
  --accent-text: #03121e;

  --grid-line: rgba(117, 227, 255, 0.07);
  --shadow-soft: 0 18px 44px rgba(2, 8, 18, 0.45);
}

body[data-theme="light"] {
  --bg-from: #ecf3ff;
  --bg-mid: #dce9ff;
  --bg-to: #f4f8ff;
  --glow-cyan: rgba(52, 115, 255, 0.22);
  --glow-lime: transparent;

  --text: #172747;
  --muted: #53698d;
  --line: rgba(62, 96, 150, 0.24);
  --surface: rgba(255, 255, 255, 0.78);
  --surface-soft: rgba(245, 250, 255, 0.9);
  --chip-bg: rgba(240, 247, 255, 0.92);
  --navbar-bg: rgba(255, 255, 255, 0.82);

  --accent: #0f67ff;
  --accent-alt: #0bc8a2;
  --accent-text: #f4f9ff;

  --grid-line: rgba(75, 104, 155, 0.12);
  --shadow-soft: 0 18px 40px rgba(20, 47, 98, 0.16);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-main);
  color: var(--text);
  --bs-body-color: var(--text);
  --bs-secondary-color: var(--muted);
  --bs-heading-color: var(--text);
  --bs-body-bg: transparent;
  min-height: 100vh;
  background:
    radial-gradient(circle at 84% 12%, var(--glow-cyan), transparent 34%),
    linear-gradient(160deg, var(--bg-from) 0%, var(--bg-mid) 48%, var(--bg-to) 100%);
  transition:
    color 220ms ease,
    background 260ms ease;
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  z-index: 1300;
  pointer-events: none;
}

.scroll-progress::before {
  content: "";
  display: block;
  height: 100%;
  width: calc(var(--progress, 0) * 100%);
  background: linear-gradient(90deg, var(--accent), var(--accent-alt));
  box-shadow: 0 0 18px color-mix(in srgb, var(--accent) 60%, transparent);
  transition: width 120ms linear;
}

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

h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--text);
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -2;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(circle at 50% 44%, #000 28%, transparent 84%);
  animation: gridDrift 22s linear infinite;
}

.bg-noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  opacity: 0.08;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180' viewBox='0 0 180 180'%3E%3Cg fill='%23ffffff' fill-opacity='0.6'%3E%3Ccircle cx='20' cy='24' r='1'/%3E%3Ccircle cx='74' cy='92' r='1'/%3E%3Ccircle cx='128' cy='48' r='1'/%3E%3Ccircle cx='156' cy='132' r='1'/%3E%3Ccircle cx='44' cy='156' r='1'/%3E%3C/g%3E%3C/svg%3E");
}

body[data-theme="light"] .bg-noise {
  opacity: 0.04;
}

.site-header {
  position: sticky;
  top: 0.82rem;
  z-index: 1040;
  margin-top: 0.9rem;
}

.navbar-glass {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--navbar-bg);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
  padding: 0.7rem 0.95rem;
}

.logo {
  font-family: var(--font-display);
  font-size: 1.05rem;
  letter-spacing: 0.12em;
  font-weight: 700;
  color: var(--accent);
}

.custom-toggler {
  border: 1px solid var(--line);
  border-radius: 12px;
  color: var(--text);
  padding: 0.1rem 0.48rem;
}

.custom-toggler:focus {
  box-shadow: none;
  border-color: var(--accent);
}

.custom-toggler i {
  font-size: 1.5rem;
}

.navbar-nav .nav-link {
  color: var(--muted);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 999px;
  padding: 0.42rem 0.78rem;
  transition:
    color 180ms ease,
    background 180ms ease;
}

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus-visible {
  color: var(--text);
  background: var(--surface-soft);
}

.controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.58rem;
  margin-left: 0.8rem;
}

.btn {
  border-radius: 999px;
  font-weight: 600;
}

.btn-ui {
  border: 1px solid var(--line);
  color: var(--muted);
  background: var(--surface-soft);
}

.btn-ui:hover,
.btn-ui:focus-visible {
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  color: var(--text);
  background: color-mix(in srgb, var(--surface-soft) 65%, var(--accent) 10%);
}

.lang-switch {
  border: 1px solid var(--line);
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface-soft);
}

.lang-switch .language-option {
  min-width: 46px;
  padding-inline: 0.65rem;
}

.lang-switch .language-option.btn-ui {
  border: 0;
  background: transparent;
  border-right: 1px solid var(--line);
  color: var(--muted);
}

.lang-switch .language-option.btn-ui:last-child {
  border-right: 0;
}

.lang-switch .language-option.active {
  color: var(--accent-text);
  border-color: transparent;
  background: linear-gradient(120deg, var(--accent), var(--accent-alt));
}

.theme-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.42rem;
  padding: 0.37rem 0.74rem;
  color: var(--text);
  border: 1px solid var(--line);
  background: var(--surface-soft);
}

.theme-toggle-btn i {
  color: var(--muted);
}

.theme-toggle-btn.is-dark {
  border-color: var(--line);
  background: var(--surface-soft);
}

.theme-toggle-btn.is-dark i {
  color: var(--muted);
}

.theme-toggle-btn.is-light {
  border-color: var(--line);
  background: color-mix(in srgb, var(--surface-soft) 80%, var(--accent) 9%);
}

.theme-toggle-btn.is-light i {
  color: var(--accent);
}

.theme-toggle-btn:hover,
.theme-toggle-btn:focus-visible {
  color: var(--text);
  transform: translateY(-1px);
}

.btn-accent {
  border: 1px solid transparent;
  color: var(--accent-text);
  background: linear-gradient(120deg, var(--accent), var(--accent-alt));
}

.btn-accent:hover,
.btn-accent:focus-visible {
  color: var(--accent-text);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px color-mix(in srgb, var(--accent) 35%, transparent);
}

.btn-outline-ui {
  border: 1px solid var(--line);
  color: var(--text);
  background: var(--surface-soft);
}

.btn-outline-ui:hover,
.btn-outline-ui:focus-visible {
  color: var(--text);
  border-color: color-mix(in srgb, var(--accent) 45%, transparent);
  background: color-mix(in srgb, var(--surface-soft) 78%, var(--accent) 6%);
}

main {
  padding-top: 1.3rem;
}

.section {
  margin-top: 4.3rem;
  position: relative;
}

#about.section {
  margin-top: 2.45rem;
}

.section-head {
  position: relative;
  padding-bottom: 0.84rem;
}

.section-head::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(320px, 72vw);
  height: 1px;
  background: linear-gradient(90deg, color-mix(in srgb, var(--accent) 80%, transparent), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 720ms ease 140ms;
}

.section-head.is-visible::after {
  transform: scaleX(1);
}

.hero {
  min-height: 64vh;
  margin-top: 1.9rem;
}

.hero-copy-col {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

.hero-copy-block {
  max-width: 720px;
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(26px);
  pointer-events: none;
  z-index: -1;
  mix-blend-mode: screen;
  animation: drift 11s ease-in-out infinite alternate;
}

.orb-cyan {
  width: 450px;
  height: 450px;
  top: -225px;
  right: 1%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 70%, transparent), transparent 74%);
}

.orb-lime {
  display: none;
}

body[data-theme="light"] .orb {
  mix-blend-mode: normal;
  opacity: 0.55;
}

.eyebrow,
.section-kicker,
.card-kicker,
.status-title,
.contact-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.77rem;
  font-weight: 700;
  color: var(--accent-alt);
}

.hero-title {
  font-family: var(--font-main);
  font-weight: 700;
  letter-spacing: -0.03em;
  font-size: clamp(2.35rem, 5.2vw, 4.7rem);
  line-height: 0.95;
  margin: 0.44rem 0 1rem;
}

.hero-title span {
  display: block;
  font-weight: 600;
  letter-spacing: -0.025em;
}

.intro {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 62ch;
}

.social-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.62rem;
}

.social-pills .btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.metric-card {
  border: 1px solid var(--line);
  border-radius: 16px;
  background: var(--surface-soft);
}

.metric-card .card-body {
  padding: 0.8rem 0.92rem;
}

.metric-value {
  display: block;
  font-family: var(--font-display);
  font-size: 0.94rem;
  color: var(--text);
}

.metric-label {
  display: block;
  margin-top: 0.48rem;
  color: var(--muted);
  font-size: 0.8rem;
}

.profile-frame {
  border: 1px solid var(--line);
  border-radius: 26px;
  padding: 0.68rem;
  background: linear-gradient(160deg, color-mix(in srgb, var(--accent) 14%, transparent), color-mix(in srgb, var(--accent-alt) 10%, transparent));
  box-shadow: var(--shadow-soft);
}

body.motion-safe .profile-frame {
  animation: levitate 7.2s ease-in-out infinite;
}

.profile-photo {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: 20px;
  display: block;
}

.ui-card {
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
  box-shadow: var(--shadow-soft);
}

.ui-card,
.metric-card {
  position: relative;
  overflow: hidden;
  isolation: isolate;
  transition:
    border-color 220ms ease,
    box-shadow 220ms ease;
}

.ui-card::before,
.metric-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  z-index: 0;
  pointer-events: none;
  opacity: 0;
  background: radial-gradient(
    230px circle at var(--mx, 50%) var(--my, 50%),
    color-mix(in srgb, var(--accent) 30%, transparent),
    transparent 64%
  );
  transition: opacity 220ms ease;
}

.ui-card.is-hovered::before,
.metric-card.is-hovered::before {
  opacity: 1;
}

.ui-card:hover,
.metric-card:hover {
  border-color: color-mix(in srgb, var(--accent-alt) 52%, transparent);
  box-shadow:
    0 0 0 1px color-mix(in srgb, var(--accent-alt) 40%, transparent),
    var(--shadow-soft);
}

.ui-card .card-body {
  padding: 1.1rem 1.15rem;
  position: relative;
  z-index: 1;
}

.ui-card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.6rem;
  color: var(--text);
}

.ui-card p,
.section-text {
  color: var(--muted);
  line-height: 1.7;
}

.status-card .card-body {
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.hero-focus-card {
  width: 100%;
  max-width: none;
}

.section-head h2 {
  margin: 0.5rem 0 0;
  font-family: var(--font-display);
  font-size: clamp(1.45rem, 3.4vw, 2.45rem);
  line-height: 1.2;
  color: var(--text);
}

.project-card {
  transition:
    transform 220ms ease,
    border-color 220ms ease;
}

.project-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent-alt) 52%, transparent);
}

.project-card h3 {
  color: var(--text);
}

.project-card .card-body {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.project-card p {
  margin-bottom: 0;
}

.project-links {
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.72rem 1rem;
  align-items: center;
}

.repo-link {
  display: inline-flex;
  margin-top: 0;
  align-items: center;
  font-weight: 700;
  color: var(--accent);
}

.repo-link:hover {
  color: color-mix(in srgb, var(--accent) 74%, white 14%);
}

.live-link {
  color: var(--accent-alt);
}

.live-link:hover {
  color: color-mix(in srgb, var(--accent-alt) 82%, white 10%);
}

.project-note {
  display: inline-flex;
  margin-top: 0;
  align-items: center;
  font-weight: 700;
  color: color-mix(in srgb, var(--muted) 90%, var(--text) 10%);
}

.badge-chip {
  border: 1px solid var(--line);
  background: var(--chip-bg);
  border-radius: 999px;
  padding: 0.38rem 0.74rem;
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 600;
}

.contact-card {
  transition:
    transform 210ms ease,
    border-color 210ms ease;
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: color-mix(in srgb, var(--accent) 48%, transparent);
}

.contact-value {
  display: block;
  margin-top: 0.45rem;
  color: var(--text);
  font-weight: 600;
}

.site-footer {
  margin: 3rem 0 1.8rem;
  color: var(--muted);
}

.site-footer .container-xxl {
  border-top: 1px solid var(--line);
  padding-top: 1.15rem;
}

.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 640ms ease,
    transform 640ms ease;
}

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

@keyframes drift {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
  }
  100% {
    transform: translate3d(24px, -18px, 0) scale(1.06);
  }
}

@keyframes gridDrift {
  0% {
    transform: translate3d(0, 0, 0);
  }
  100% {
    transform: translate3d(44px, 22px, 0);
  }
}

@keyframes levitate {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
  }
  50% {
    transform: translate3d(0, -8px, 0);
  }
}

@media (prefers-reduced-motion: reduce) {
  .bg-grid,
  .orb,
  .profile-frame {
    animation: none !important;
  }

  .reveal {
    transition: none;
  }
}

@media (min-width: 992px) {
  .navbar-nav .nav-link {
    padding-inline: 0.66rem;
    font-size: 0.89rem;
  }

  .hero-copy-col {
    padding-top: 0.95rem;
  }

  .hero-media-col {
    padding-top: 0.3rem;
  }
}

@media (max-width: 991px) {
  .navbar-collapse {
    margin-top: 0.75rem;
    border-top: 1px solid var(--line);
    padding-top: 0.8rem;
  }

  .controls {
    width: 100%;
    margin-left: 0;
    justify-content: flex-start;
    gap: 0.62rem;
    padding-top: 0.2rem;
  }

  .theme-toggle-btn {
    padding: 0.32rem 0.62rem;
  }

  .theme-toggle-btn span {
    font-size: 0.82rem;
  }

  .hero {
    min-height: auto;
  }

  .hero-copy-col {
    padding-top: 0;
  }

  .profile-frame {
    max-width: 420px;
  }
}

@media (max-width: 767px) {
  .navbar-glass {
    border-radius: 16px;
  }

  .controls {
    flex-direction: column;
    align-items: flex-start;
    width: 100%;
  }

  .controls > .btn-accent {
    width: auto;
  }

  .hero-focus-card {
    max-width: 100%;
  }

  .section {
    margin-top: 3.3rem;
  }

  #about.section {
    margin-top: 2.2rem;
  }

  .section-head h2 {
    font-size: clamp(1.25rem, 8vw, 1.95rem);
  }

  .hero-title {
    font-size: clamp(2rem, 13vw, 3.05rem);
    line-height: 0.98;
  }

  .intro {
    font-size: 1rem;
  }

  .orb-cyan {
    width: 300px;
    height: 300px;
    top: -150px;
  }

  .orb-lime {
    width: 260px;
    height: 260px;
    bottom: -160px;
  }
}