@import url("https://fonts.googleapis.com/css2?family=Orbitron:wght@500;700&family=Space+Grotesk:wght@400;500;700&display=swap");

body {
  font-family: var(--font-ui);
  color: var(--text-main);
  background:
    radial-gradient(circle at 15% 15%, rgba(55, 161, 255, 0.3), transparent 30%),
    radial-gradient(circle at 85% 75%, rgba(59, 255, 163, 0.22), transparent 35%),
    linear-gradient(140deg, var(--bg-0), var(--bg-1) 52%, var(--bg-2));
  overflow-x: hidden;
  transition: background 280ms ease, color 280ms ease;
}

body::before,
body::after {
  content: "";
  position: fixed;
  border-radius: 50%;
  pointer-events: none;
  z-index: -1;
  transition: transform 900ms cubic-bezier(0.22, 1, 0.36, 1), opacity 700ms ease, filter 700ms ease;
}

body::before {
  width: 140px;
  height: 140px;
  left: 8vw;
  top: 72vh;
  background: radial-gradient(circle at 35% 30%, #ffeaa1, #ffc853 60%, #e99b2f 100%);
  box-shadow: 0 0 50px rgba(255, 206, 104, 0.72);
  opacity: 0;
  transform: translateY(120px) scale(0.82);
}

body::after {
  width: 118px;
  height: 118px;
  right: 10vw;
  top: 10vh;
  background: radial-gradient(circle at 30% 30%, #f8fdff, #d8e9ff 60%, #b2c8ef 100%);
  box-shadow: 0 0 42px rgba(181, 212, 255, 0.62);
  opacity: 0.82;
  transform: translateY(0) scale(1);
}

body[data-theme="day"] {
  --bg-0: #b7d1e6;
  --bg-1: #9fc2dd;
  --bg-2: #87acd0;
  --text-main: #10233a;
  --text-dim: #466480;
  --border-glass: rgba(44, 101, 149, 0.42);
  --surface-glass: rgba(214, 232, 247, 0.66);
  --surface-strong: rgba(201, 223, 242, 0.9);
  --shadow-soft: 0 12px 36px rgba(43, 86, 122, 0.18);
}

body[data-theme="day"] {
  background:
    radial-gradient(circle at 15% 15%, rgba(118, 180, 227, 0.42), transparent 32%),
    radial-gradient(circle at 82% 78%, rgba(134, 199, 231, 0.34), transparent 38%),
    linear-gradient(140deg, var(--bg-0), var(--bg-1) 54%, var(--bg-2));
}

body[data-theme="day"]::before {
  opacity: 1;
  transform: translateY(-14px) scale(1);
  filter: saturate(1.06);
}

body[data-theme="day"]::after {
  opacity: 0.2;
  transform: translateY(-120px) scale(0.75);
  filter: blur(1px);
}

body[data-theme="night"]::before {
  opacity: 0;
  transform: translateY(120px) scale(0.82);
}

body[data-theme="night"]::after {
  opacity: 0.92;
  transform: translateY(0) scale(1);
  filter: drop-shadow(0 0 22px rgba(173, 208, 255, 0.72));
}

.wallpaper-layer,
#particle-canvas {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.wallpaper-layer {
  z-index: -3;
  background-size: cover;
  background-position: center;
  opacity: 0.22;
  filter: saturate(1.08);
}

#particle-canvas {
  z-index: -2;
}

.site-header {
  position: fixed;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: min(calc(100% - 1.5rem), var(--max-width));
  margin-top: var(--space-3);
  padding: var(--space-2) var(--space-3);
  border: 1px solid var(--border-glass);
  border-radius: 999px;
  background: color-mix(in srgb, var(--surface-glass), transparent 18%);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  z-index: 10;
  opacity: 0;
  transition: opacity 240ms ease, transform 240ms ease;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-header.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.brand {
  font-family: var(--font-display);
  letter-spacing: 0.08em;
  font-size: 0.92rem;
  text-transform: uppercase;
}

.main-nav {
  display: flex;
  gap: var(--space-1);
}

.lang-toggle {
  padding: 0.45rem 0.75rem;
  font-size: 0.85rem;
}

.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
}

.theme-switch-input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.theme-switch-track {
  position: relative;
  width: 58px;
  height: 30px;
  border-radius: 999px;
  background: linear-gradient(120deg, rgba(255, 198, 69, 0.8), rgba(50, 87, 146, 0.85));
  border: 1px solid rgba(157, 181, 214, 0.35);
}

.theme-switch-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: #fff4b3;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.22);
  transition: transform 220ms ease, background 220ms ease;
}

.theme-switch-input:checked + .theme-switch-track .theme-switch-thumb {
  transform: translateX(28px);
  background: #eef4ff;
}

body[data-theme="day"] .theme-switch-track {
  background: linear-gradient(120deg, rgba(255, 189, 73, 0.95), rgba(129, 199, 253, 0.8));
}

body[data-theme="night"] .theme-switch-track {
  background: linear-gradient(120deg, rgba(66, 102, 172, 0.9), rgba(22, 40, 77, 0.95));
}

.theme-icon {
  font-size: 0.95rem;
}

.main-nav a {
  color: var(--text-dim);
  text-decoration: none;
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  transition: background-color 200ms ease, color 200ms ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--text-main);
  background: rgba(61, 228, 255, 0.17);
}

.page-shell {
  width: min(calc(100% - 1.5rem), var(--max-width));
  margin: 6.5rem auto 5rem;
  display: grid;
  gap: var(--space-4);
}

.entry-gate {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  background: linear-gradient(180deg, rgba(5, 11, 22, 0.26), rgba(5, 11, 22, 0.62));
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: opacity 280ms ease;
}

html.drluffy-gate-pending .entry-gate {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

.entry-gate::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgba(82, 168, 255, 0.1), transparent 55%);
  pointer-events: none;
}

.entry-gate-panel {
  width: min(86vw, 520px);
  text-align: center;
  transform: perspective(1000px) translateZ(0) scale(1);
  transition: transform 420ms cubic-bezier(0.22, 1, 0.36, 1), opacity 320ms ease;
}

.entry-gate.is-leaving {
  opacity: 0;
}

.entry-gate.is-leaving .entry-gate-panel {
  transform: perspective(1000px) translateZ(120px) scale(1.04);
  opacity: 0;
}

.entry-status {
  animation: entry-status-blink 1.2s ease-in-out infinite;
}

@keyframes entry-status-blink {
  0%, 100% { opacity: 1; text-shadow: 0 0 0 rgba(118, 221, 255, 0); }
  50% { opacity: var(--entry-blink-min-opacity, 0.45); text-shadow: 0 0 var(--entry-blink-glow-size, 10px) var(--entry-blink-glow, rgba(118, 221, 255, 0.55)); }
}

body.is-entered .entry-gate {
  opacity: 0;
  pointer-events: none;
}

html.drluffy-gate-pending body .site-header,
html.drluffy-gate-pending body .page-shell,
html.drluffy-gate-pending body .site-footer,
html.drluffy-gate-pending body .cat-widget,
html.drluffy-gate-pending body .idle-overlay,
html.drluffy-gate-pending body .lightbox {
  opacity: 0;
  pointer-events: none;
}

.site-footer {
  width: min(calc(100% - 1.5rem), var(--max-width));
  margin: 0 auto 2.2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-2);
}

.glass-panel {
  background: var(--surface-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(10px);
  padding: var(--space-4);
}

body[data-theme="day"] .site-header,
body[data-theme="day"] .glass-panel,
body[data-theme="day"] .article-card,
body[data-theme="day"] .pagination button,
body[data-theme="day"] .text-input,
body[data-theme="day"] .cat-bubble,
body[data-theme="day"] .lightbox-close {
  color: var(--text-main);
}

.hero h1,
h1,
h2,
h3 {
  font-family: var(--font-display);
  margin: 0 0 var(--space-3);
}

.eyebrow {
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-cyan);
  margin: 0 0 var(--space-2);
}

.subtitle {
  margin: 0 0 var(--space-4);
  color: var(--text-dim);
  max-width: 65ch;
}

.grid-two-col {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.btn {
  border: none;
  border-radius: 999px;
  padding: 0.6rem 1rem;
  text-decoration: none;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
}

.btn-primary {
  color: #041224;
  background: linear-gradient(120deg, var(--accent-cyan), #6cf9d9);
}

.btn-secondary {
  color: var(--text-main);
  background: rgba(157, 181, 214, 0.2);
  border: 1px solid rgba(157, 181, 214, 0.3);
}

.btn-ghost {
  color: var(--accent-orange);
  background: rgba(255, 173, 66, 0.16);
}

.inline-actions {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.inline-actions.wrap {
  flex-wrap: wrap;
}

.hero-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}

.chip-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}

.chip-list li,
.tag-chip {
  border: 1px solid rgba(157, 181, 214, 0.32);
  border-radius: 999px;
  padding: 0.3rem 0.7rem;
  background: rgba(157, 181, 214, 0.14);
  color: var(--text-main);
  cursor: pointer;
}

.tag-chip.is-active {
  background: rgba(61, 228, 255, 0.22);
  border-color: rgba(61, 228, 255, 0.55);
}

.article-list {
  display: grid;
  gap: var(--space-3);
}

.article-card {
  padding: var(--space-3);
  border-radius: var(--radius-md);
  border: 1px solid rgba(157, 181, 214, 0.2);
  background: rgba(4, 21, 42, 0.45);
}

.article-card h3 {
  margin: 0 0 var(--space-2);
}

.article-card .meta {
  color: var(--text-dim);
  font-size: 0.92rem;
}

.article-card a {
  color: var(--accent-cyan);
}

.text-input {
  min-width: 240px;
  border: 1px solid rgba(157, 181, 214, 0.35);
  color: var(--text-main);
  border-radius: 999px;
  background: rgba(4, 19, 35, 0.52);
  padding: 0.55rem 0.9rem;
}

body[data-theme="day"] .text-input {
  border-color: rgba(50, 96, 145, 0.45);
  background: rgba(137, 170, 201, 0.24);
  color: #0f2a45;
}

body[data-theme="day"] .text-input::placeholder {
  color: rgba(18, 54, 84, 0.78);
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
}

.pagination button {
  border: 1px solid rgba(157, 181, 214, 0.3);
  border-radius: var(--radius-sm);
  background: rgba(4, 21, 42, 0.45);
  color: var(--text-main);
  padding: 0.4rem 0.8rem;
  cursor: pointer;
}

.profile-card {
  display: grid;
  gap: var(--space-2);
}

.about-media {
  display: grid;
  gap: var(--space-3);
  justify-items: center;
}

.about-photo {
  width: min(300px, 72vw);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 20px;
  border: 1px solid rgba(157, 181, 214, 0.35);
  box-shadow: var(--shadow-soft);
}

.social-row {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  justify-content: center;
}

.social-link {
  min-width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  border-radius: 999px;
  text-decoration: none;
  color: var(--text-main);
  border: 1px solid rgba(157, 181, 214, 0.35);
  background: rgba(4, 21, 42, 0.35);
  font-weight: 700;
}

.social-link:hover {
  background: rgba(61, 228, 255, 0.22);
}

.timeline {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}

.timeline li {
  display: grid;
  gap: var(--space-1);
  grid-template-columns: 80px 1fr;
  align-items: start;
}

.timeline span {
  font-family: var(--font-display);
  color: var(--accent-lime);
}

.timeline p {
  margin: 0;
  color: var(--text-dim);
}

.article-layout {
  grid-template-columns: minmax(0, 3fr) minmax(260px, 1fr);
}

.toc-panel {
  position: sticky;
  top: 6.5rem;
  height: fit-content;
}

.toc-panel nav {
  display: grid;
  gap: var(--space-1);
}

.toc-panel a {
  color: var(--text-dim);
  text-decoration: none;
}

.toc-panel a:hover {
  color: var(--accent-cyan);
}

.article-nav {
  grid-column: 1 / -1;
  display: flex;
  justify-content: space-between;
}

.cat-widget {
  position: fixed;
  right: 0.6rem;
  top: 26vh;
  width: 76px;
  height: 300px;
  z-index: 11;
  pointer-events: none;
}

.pulley {
  position: absolute;
  right: 20px;
  top: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 2px solid rgba(157, 181, 214, 0.5);
  background: rgba(7, 24, 43, 0.8);
}

.rope {
  position: absolute;
  right: 30px;
  top: 24px;
  width: 2px;
  height: 90px;
  background: linear-gradient(to bottom, #d6e7ff, #8fa8c8);
}

.food {
  position: absolute;
  right: 18px;
  top: 112px;
  width: 28px;
  height: 20px;
  border-radius: 0 0 10px 10px;
  background: linear-gradient(140deg, #f7b650, #ff8642);
}

.cat {
  position: absolute;
  right: 0;
  bottom: 0;
  width: 66px;
  height: 58px;
  border-radius: 36px 36px 18px 18px;
  background: linear-gradient(160deg, #e8edf5, #98a7be);
  box-shadow: 0 6px 12px rgba(0, 0, 0, 0.3);
}

.cat.is-hidden {
  opacity: 0;
}

.cat-svg {
  position: absolute;
  right: -4px;
  bottom: -4px;
  width: 70px;
  height: 70px;
  object-fit: contain;
}

.cat-ears::before,
.cat-ears::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  background: #b9c6d8;
  top: -8px;
  clip-path: polygon(50% 0%, 0% 100%, 100% 100%);
}

.cat-ears::before {
  left: 9px;
}

.cat-ears::after {
  right: 9px;
}

.cat-eyes::before,
.cat-eyes::after {
  content: "";
  position: absolute;
  top: 20px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #081222;
}

.cat-eyes::before {
  left: 16px;
}

.cat-eyes::after {
  right: 16px;
}

.cat-bubble {
  position: absolute;
  right: 72px;
  bottom: 50px;
  max-width: 120px;
  min-height: 32px;
  padding: 0.25rem 0.6rem;
  border-radius: 12px;
  background: rgba(9, 28, 52, 0.9);
  border: 1px solid var(--border-glass);
  color: var(--text-main);
  font-size: 0.8rem;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 180ms ease, transform 180ms ease;
}

body[data-theme="day"] .cat-bubble {
  background: rgba(236, 246, 255, 0.95);
  border: 1px solid rgba(64, 126, 179, 0.4);
  color: #153552;
}

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

.cat.is-jumping {
  animation: cat-jump 640ms ease;
}

.cat-svg.is-jumping {
  animation: cat-jump 640ms ease;
}

@keyframes cat-jump {
  0% { transform: translateY(0); }
  35% { transform: translateY(-20px); }
  70% { transform: translateY(0); }
  100% { transform: translateY(-5px); }
}

.idle-overlay {
  position: fixed;
  inset: 0;
  z-index: 40;
  display: none;
  place-items: center;
  background: rgba(1, 9, 20, 0.88);
}

.idle-overlay.is-active {
  display: grid;
}

.idle-content {
  width: min(95vw, 1020px);
  min-height: 70vh;
  display: grid;
  gap: var(--space-3);
}

.idle-content header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-2);
}

.slideshow-stage {
  display: grid;
  place-items: center;
  min-height: 56vh;
}

.slideshow-frame {
  width: min(100%, 840px);
  max-height: 56vh;
  border-radius: var(--radius-md);
  border: 1px solid rgba(157, 181, 214, 0.25);
  background: rgba(2, 12, 24, 0.52);
  overflow: hidden;
  display: grid;
  place-items: center;
}

.slideshow-image {
  width: 100%;
  height: 100%;
  max-height: 56vh;
  object-fit: contain;
  cursor: zoom-in;
}

.slideshow-caption,
.slideshow-hint {
  margin: 0;
  color: var(--text-dim);
  text-align: center;
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
  place-items: center;
  background: rgba(1, 9, 20, 0.92);
}

.lightbox.is-active {
  display: grid;
}

.lightbox-image {
  width: min(94vw, 1200px);
  max-height: 88vh;
  object-fit: contain;
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  border: 1px solid rgba(157, 181, 214, 0.32);
  border-radius: 999px;
  background: rgba(9, 28, 52, 0.82);
  color: var(--text-main);
  padding: 0.6rem 1rem;
  cursor: pointer;
}

@media (max-width: 900px) {
  .grid-two-col,
  .article-layout {
    grid-template-columns: 1fr;
  }

  .toc-panel {
    position: static;
  }

  .cat-widget {
    width: 56px;
    top: 20vh;
    opacity: 0.9;
  }
}

@media (max-width: 700px) {
  .site-header {
    opacity: 1;
  }

  .header-actions {
    gap: 0.45rem;
  }

  .main-nav {
    gap: 0.15rem;
  }

  .main-nav a {
    padding: 0.4rem 0.65rem;
    font-size: 0.9rem;
  }

  .page-shell {
    margin-top: 6rem;
  }

  .entry-gate-panel {
    width: min(92vw, 520px);
  }
}

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