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

html,
body {
  height: 100%;
}

body {
  margin: 0;
  -webkit-font-smoothing: antialiased;
}

ul,
ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

button {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
}

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

h1,
h2,
h3,
p {
  margin: 0;
}

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

:root {
  --color-bg: #0a0e17;
  --color-bg-overlay: rgba(8, 10, 16, 0.72);
  --color-surface: #12161f;
  --color-surface-alt: #171c28;
  --color-border: #232838;
  --color-border-soft: rgba(255, 255, 255, 0.06);

  --color-text-primary: #f3f4f8;
  --color-text-secondary: #9aa1b1;
  --color-text-tertiary: #6b7386;

  --color-accent: #7c5cff;
  --color-accent-hover: #9078ff;
  --color-accent-soft: rgba(124, 92, 255, 0.14);
  --color-accent-soft-strong: rgba(124, 92, 255, 0.22);

  --color-terminal-green: #6ee7a0;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 999px;

  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;

  --transition-fast: 160ms ease;
  --transition-med: 280ms cubic-bezier(0.22, 1, 0.36, 1);

  --sidebar-width: 264px;
}

body {
  font-family: var(--font-body);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
}

.app {
  position: relative;
  height: 100vh;
  height: 100dvh;
  width: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
  background-color: var(--color-bg);
}

.app__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-image:
    linear-gradient(180deg, var(--color-bg-overlay), rgba(8, 10, 16, 0.9)),
    url("../assets/bg/mountain-bg-mobile.jpg");
  background-image:
    linear-gradient(180deg, var(--color-bg-overlay), rgba(8, 10, 16, 0.9)),
    image-set(url("../assets/bg/mountain-bg-mobile.webp") type("image/webp"),
      url("../assets/bg/mountain-bg-mobile.jpg") type("image/jpeg"));
  background-size: cover;
  background-position: center 40%;
  background-repeat: no-repeat;
}

@media (min-width: 601px) {
  .app__bg {
    background-image:
      linear-gradient(180deg, var(--color-bg-overlay), rgba(8, 10, 16, 0.9)),
      url("../assets/bg/mountain-bg-tablet.jpg");
    background-image:
      linear-gradient(180deg, var(--color-bg-overlay), rgba(8, 10, 16, 0.9)),
      image-set(url("../assets/bg/mountain-bg-tablet.webp") type("image/webp"),
        url("../assets/bg/mountain-bg-tablet.jpg") type("image/jpeg"));
  }
}

@media (min-width: 1201px) {
  .app__bg {
    background-image:
      linear-gradient(180deg, var(--color-bg-overlay), rgba(8, 10, 16, 0.9)),
      url("../assets/bg/mountain-bg-desktop.jpg");
    background-image:
      linear-gradient(180deg, var(--color-bg-overlay), rgba(8, 10, 16, 0.9)),
      image-set(url("../assets/bg/mountain-bg-desktop.webp") type("image/webp") 1x,
        url("../assets/bg/mountain-bg-desktop-2x.webp") type("image/webp") 2x,
        url("../assets/bg/mountain-bg-desktop.jpg") type("image/jpeg") 1x,
        url("../assets/bg/mountain-bg-desktop-2x.jpg") type("image/jpeg") 2x);
  }
}

.app-frame {
  position: relative;
  z-index: 2;
  width: min(1240px, 100%);
  height: min(760px, 100%);
  max-height: 100%;
  display: flex;
  gap: 22px;
  border-radius: var(--radius-lg);
}

.sidebar {
  position: relative;
  z-index: 2;
  width: var(--sidebar-width);
  flex-shrink: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  padding: 28px 22px;
  background-color: rgba(18, 22, 31, 0.62);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  overflow-y: auto;
}

.sidebar__window-dots {
  display: flex;
  gap: 7px;
  margin-bottom: 22px;
}

.sidebar__window-dots span {
  width: 11px;
  height: 11px;
  border-radius: 50%;
  display: inline-block;
}

.sidebar__window-dots span:nth-child(1) {
  background-color: #ec6a5e;
}

.sidebar__window-dots span:nth-child(2) {
  background-color: #f4bf4f;
}

.sidebar__window-dots span:nth-child(3) {
  background-color: #61c454;
}

.sidebar__profile {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-bottom: 26px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--color-border-soft);
}

.sidebar__avatar {
  width: 88px;
  height: 88px;
  border-radius: 50%;
  background: linear-gradient(160deg, #2a3040, #1a1f2b);
  border: 1px solid var(--color-border-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.sidebar__avatar svg {
  width: 40px;
  height: 40px;
  opacity: 0.5;
}

.sidebar__name {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.sidebar__subtitle {
  margin-top: 4px;
  font-size: 0.82rem;
  color: var(--color-text-secondary);
}

.nav-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nav-tab {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 11px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: background-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
  position: relative;
}

.nav-tab__icon {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.nav-tab:hover {
  background-color: var(--color-accent-soft);
  color: var(--color-text-primary);
  transform: translateX(2px);
}

.nav-tab[aria-current="page"] {
  color: var(--color-text-primary);
  background-color: var(--color-accent-soft-strong);
}

.nav-tab[aria-current="page"]::before {
  content: "";
  position: absolute;
  left: -24px;
  top: 8px;
  bottom: 8px;
  width: 3px;
  border-radius: var(--radius-pill);
  background-color: var(--color-accent);
}

.sidebar__spacer {
  flex: 1;
}

.lang-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background-color: var(--color-surface-alt);
  color: var(--color-text-secondary);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  transition: background-color var(--transition-fast), border-color var(--transition-fast), color var(--transition-fast), transform var(--transition-fast);
}

.lang-toggle:hover {
  background-color: var(--color-accent-soft);
  border-color: var(--color-accent);
  color: var(--color-text-primary);
  transform: translateY(-1px);
}

.lang-toggle__icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.lang-toggle--compact {
  width: auto;
  padding: 8px 12px;
}

.topbar {
  display: none;
  position: relative;
  z-index: 3;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background-color: rgba(18, 22, 31, 0.58);
  backdrop-filter: blur(22px) saturate(150%);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  border-bottom: 1px solid rgba(255, 255, 255, 0.09);
  flex-shrink: 0;
}

.topbar__identity {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar__avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: linear-gradient(160deg, #2a3040, #1a1f2b);
  border: 1px solid var(--color-border-soft);
}

.topbar__name {
  font-size: 0.92rem;
  font-weight: 700;
}

.topbar__actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hamburger {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-primary);
  transition: background-color var(--transition-fast);
}

.hamburger:hover {
  background-color: var(--color-accent-soft);
}

.hamburger svg {
  width: 20px;
  height: 20px;
}

.main {
  position: relative;
  z-index: 1;
  flex: 1;
  min-width: 0;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  background-color: rgba(15, 18, 27, 0.56);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: var(--radius-lg);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.page-stage {
  position: relative;
  flex: 1;
  min-height: 0;
}

.page-content {
  height: 100%;
  padding: 56px 64px;
  overflow-y: auto;
  animation: page-in var(--transition-med);
}

@keyframes page-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.page-content--home {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
  gap: 30px;
}

.terminal {
  width: 100%;
  max-width: 560px;
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

.terminal__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 12px 16px;
  background-color: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
}

.terminal__bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.terminal__bar span:nth-child(1) {
  background-color: #ec6a5e;
}

.terminal__bar span:nth-child(2) {
  background-color: #f4bf4f;
}

.terminal__bar span:nth-child(3) {
  background-color: #61c454;
}

.terminal__bar-label {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-tertiary);
}

.terminal__body {
  padding: 26px 26px 30px;
  min-height: 88px;
  display: flex;
  align-items: center;
}

.terminal__line {
  font-family: var(--font-mono);
  font-size: clamp(1.1rem, 2.4vw, 1.5rem);
  font-weight: 500;
  line-height: 1.5;
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
}

.terminal__prompt {
  color: var(--color-accent);
  margin-right: 12px;
  font-weight: 700;
}

.terminal__typed {
  color: var(--color-terminal-green);
  white-space: pre-wrap;
  word-break: break-word;
}

.terminal__cursor {
  display: inline-block;
  width: 2px;
  height: 1.05em;
  margin-left: 2px;
  background-color: var(--color-text-primary);
  animation: blink 1s step-start infinite;
  transform: translateY(2px);
}

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

.home__explore {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--color-text-secondary);
  font-size: 0.98rem;
  max-width: 480px;
}

.home__explore-arrow {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-accent);
  background-color: var(--color-accent-soft);
}

.home__explore-arrow svg {
  width: 18px;
  height: 18px;
}

.home__explore-arrow--desktop {
  animation: nudge-left 1.8s ease-in-out infinite;
}

.home__explore-arrow--mobile {
  display: none;
}

.home__explore-text--mobile {
  display: none;
}

@keyframes nudge-left {

  0%,
  100% {
    transform: translateX(0);
  }

  50% {
    transform: translateX(-5px);
  }
}

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.section-header__icon {
  width: 22px;
  height: 22px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.section-header__title {
  font-size: 1.5rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.section-lede {
  margin-top: 10px;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  max-width: 520px;
}

.about__stack {
  margin-top: 32px;
}

.about__stack-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 14px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  background-color: var(--color-surface-alt);
  border: 1px solid var(--color-border);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-primary);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.badge:hover {
  background-color: var(--color-accent-soft);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.project-list {
  margin-top: 28px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 720px;
}

.project-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 22px;
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}

.project-card:hover {
  background-color: var(--color-accent-soft);
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.project-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text-primary);
}

.project-card__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.project-card__date {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.project-card__github {
  width: 20px;
  height: 20px;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.project-card:hover .project-card__github {
  color: var(--color-accent-hover);
}

.project-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  color: var(--color-text-secondary);
  font-size: 0.88rem;
  font-weight: 600;
  transition: color var(--transition-fast), transform var(--transition-fast);
}

.project-back:hover {
  color: var(--color-text-primary);
  transform: translateX(-3px);
}

.project-back svg {
  width: 16px;
  height: 16px;
}

.project-detail {
  width: 100%;
  max-width: 560px;
  border-radius: var(--radius-md);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  overflow: hidden;
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.28);
}

.project-detail__bar {
  display: flex;
  align-items: center;
  gap: 7px;
  padding: 14px 18px;
  background-color: var(--color-surface-alt);
  border-bottom: 1px solid var(--color-border);
}

.project-detail__bar span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  display: inline-block;
}

.project-detail__bar span:nth-child(1) {
  background-color: #ec6a5e;
}

.project-detail__bar span:nth-child(2) {
  background-color: #f4bf4f;
}

.project-detail__bar span:nth-child(3) {
  background-color: #61c454;
}

.project-detail__body {
  padding: 30px 32px 34px;
}

.project-detail__title {
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: -0.01em;
}

.project-detail__date {
  margin-top: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-secondary);
}

.project-detail__description {
  margin-top: 18px;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
}

.project-detail__stack-label {
  margin-top: 26px;
  margin-bottom: 12px;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
}

.project-detail__github-link {
  margin-top: 26px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 11px 20px;
  border-radius: var(--radius-pill);
  background-color: var(--color-accent);
  color: #fff;
  font-size: 0.9rem;
  font-weight: 700;
  transition: background-color var(--transition-fast), transform var(--transition-fast);
}

.project-detail__github-link:hover {
  background-color: var(--color-accent-hover);
  transform: translateY(-2px);
}

.project-detail__github-link svg {
  width: 18px;
  height: 18px;
}

.nav-overlay {
  position: fixed;
  inset: 0;
  z-index: 20;
  visibility: hidden;
}

.nav-overlay__scrim {
  position: absolute;
  inset: 0;
  background-color: rgba(4, 5, 9, 0.55);
  opacity: 0;
  transition: opacity var(--transition-med);
}

.nav-overlay__panel {
  position: absolute;
  top: 0;
  right: 0;
  height: 100%;
  width: 78vw;
  max-width: 340px;
  background-color: rgba(14, 18, 25, 0.72);
  backdrop-filter: blur(24px) saturate(150%);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  border-left: 1px solid rgba(255, 255, 255, 0.09);
  padding: 24px 22px;
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform var(--transition-med);
  box-shadow: -12px 0 40px rgba(0, 0, 0, 0.4);
}

.nav-overlay.is-open {
  visibility: visible;
}

.nav-overlay.is-open .nav-overlay__scrim {
  opacity: 1;
}

.nav-overlay.is-open .nav-overlay__panel {
  transform: translateX(0);
}

.nav-overlay__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 26px;
}

.nav-overlay__close {
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--color-text-primary);
  transition: background-color var(--transition-fast);
}

.nav-overlay__close:hover {
  background-color: var(--color-accent-soft);
}

.nav-overlay__close svg {
  width: 18px;
  height: 18px;
}

.nav-overlay__profile {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-overlay__avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(160deg, #2a3040, #1a1f2b);
  border: 1px solid var(--color-border-soft);
}

.nav-overlay__name {
  font-size: 0.95rem;
  font-weight: 700;
}

.nav-overlay__subtitle {
  font-size: 0.76rem;
  color: var(--color-text-secondary);
  margin-top: 2px;
}

.nav-overlay .nav-list {
  gap: 6px;
}

.nav-overlay .nav-tab[aria-current="page"]::before {
  left: -22px;
}

@media (max-width: 860px) {
  .app {
    padding: 0;
  }

  .app-frame {
    width: 100%;
    height: 100%;
    gap: 0;
    border-radius: 0;
  }

  .sidebar {
    display: none;
  }

  .main {
    border-radius: 0;
    border: none;
    box-shadow: none;
  }

  .topbar {
    display: flex;
  }

  .page-content {
    padding: 32px 24px;
  }

  .project-card {
    flex-wrap: wrap;
  }

  .home__explore-arrow--desktop {
    display: none;
  }

  .home__explore-arrow--mobile {
    display: flex;
    animation: nudge-up 1.8s ease-in-out infinite;
  }

  .home__explore-text--desktop {
    display: none;
  }

  .home__explore-text--mobile {
    display: block;
  }
}

@keyframes nudge-up {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-5px);
  }
}

@media (max-width: 480px) {
  .page-content {
    padding: 26px 18px;
  }

  .nav-overlay__panel {
    width: 80vw;
  }

  .terminal__body {
    padding: 20px 18px 24px;
  }

  .project-detail__body {
    padding: 24px 22px 28px;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    transition-duration: 1ms !important;
    animation-duration: 1ms !important;
  }

  .terminal__cursor {
    animation: none;
    opacity: 1;
  }

  .home__explore-arrow--desktop,
  .home__explore-arrow--mobile {
    animation: none;
  }
}

a:focus-visible,
button:focus-visible,
[tabindex]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}