:root {
  --bg: #f6f4ef;
  --ink: #1a1e25;
  --muted: #4f5a6b;
  --panel: rgba(255, 255, 255, 0.74);
  --panel-border: rgba(255, 255, 255, 0.86);
  --link: #18466d;
  --brand: #1f2f3f;
  --pill-bg: #1a1e25;
  --pill-ink: #f6f4ef;
  --shadow: 0 24px 46px rgba(17, 22, 33, 0.12);
  --earth-glow: rgba(255, 156, 103, 0.25);
  --space-glow: rgba(69, 183, 173, 0.24);
  --sky-glow: rgba(100, 156, 255, 0.2);
  --leaf-glow: rgba(102, 195, 138, 0.18);
  --bg-radial-1: rgba(239, 173, 99, 0.35);
  --bg-radial-2: rgba(88, 179, 173, 0.33);
  --bg-grad-1: #f4f1ea;
  --bg-grad-2: #edf2f2;
  --bg-grad-3: #f8f8f6;
  --cosmos-opacity: 0.18;
  --planet-opacity: 0.14;
  --toggle-bg: rgba(255, 255, 255, 0.82);
  --toggle-border: rgba(22, 32, 47, 0.12);
  --toggle-text: #1a1e25;
  --page-glow-strength: 0.8;
  --caret-stroke: rgba(28, 36, 52, 0.24);
  --caret-stroke-strong: rgba(28, 36, 52, 0.38);
}

html[data-theme="night"] {
  --bg: #040915;
  --ink: #f1f6ff;
  --muted: #b9c8e9;
  --panel: rgba(11, 18, 34, 0.9);
  --panel-border: rgba(160, 183, 227, 0.27);
  --link: #9ad2ff;
  --brand: #e7f0ff;
  --pill-bg: #cfe5ff;
  --pill-ink: #081325;
  --shadow: 0 28px 60px rgba(1, 4, 12, 0.65);
  --earth-glow: rgba(29, 87, 168, 0.38);
  --space-glow: rgba(129, 85, 255, 0.36);
  --sky-glow: rgba(78, 125, 212, 0.3);
  --leaf-glow: rgba(104, 173, 140, 0.28);
  --bg-radial-1: rgba(42, 80, 160, 0.35);
  --bg-radial-2: rgba(123, 87, 240, 0.33);
  --bg-grad-1: #050a15;
  --bg-grad-2: #091227;
  --bg-grad-3: #120c20;
  --cosmos-opacity: 1;
  --planet-opacity: 0.72;
  --toggle-bg: rgba(9, 15, 29, 0.95);
  --toggle-border: rgba(147, 170, 214, 0.36);
  --toggle-text: #eaf2ff;
  --page-glow-strength: 1;
  --caret-stroke: rgba(221, 233, 255, 0.3);
  --caret-stroke-strong: rgba(221, 233, 255, 0.48);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--ink);
  font-family: "Avenir Next", "Trebuchet MS", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 10% 8%, var(--bg-radial-1), transparent 36%),
    radial-gradient(circle at 85% 22%, var(--bg-radial-2), transparent 35%),
    linear-gradient(160deg, var(--bg-grad-1) 0%, var(--bg-grad-2) 48%, var(--bg-grad-3) 100%);
  position: relative;
  overflow-x: hidden;
  transition: background 260ms ease, color 260ms ease;
}

.cosmos-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
  opacity: var(--cosmos-opacity);
  transition: opacity 260ms ease;
}

.cosmos-stars,
.cosmos-planets {
  position: absolute;
  inset: 0;
}

.star {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 0 6px rgba(236, 244, 255, 0.9);
  filter: hue-rotate(var(--star-hue-shift));
  opacity: var(--star-min-opacity);
  animation: star-twinkle var(--twinkle-duration) ease-in-out infinite;
  animation-delay: var(--twinkle-delay);
}

.cosmos-planets {
  opacity: var(--planet-opacity);
}

.planet-wrap {
  position: absolute;
  left: 0;
  animation: planet-drift var(--orbit-duration) linear infinite;
  animation-delay: var(--orbit-delay);
}

.planet {
  display: block;
  position: relative;
  border-radius: 50%;
  background:
    radial-gradient(circle at 30% 24%, rgba(255, 255, 255, calc(0.12 + var(--planet-depth))), transparent 40%),
    radial-gradient(circle at 70% 78%, var(--planet-fill-b), transparent 64%),
    linear-gradient(155deg, var(--planet-fill-a), var(--planet-fill-b));
  box-shadow:
    inset -9px -7px 16px rgba(0, 0, 0, 0.35),
    0 0 20px rgba(178, 198, 255, 0.15);
  animation: planet-spin var(--planet-spin) linear infinite;
  filter: blur(var(--planet-blur, 0px));
  opacity: var(--planet-alpha, 1);
}

.planet.has-ring::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 50%;
  width: 170%;
  height: 38%;
  transform: translate(-50%, -50%) rotate(-14deg);
  border-radius: 50%;
  border: 1.5px solid rgba(215, 194, 153, 0.7);
  box-shadow: 0 0 8px rgba(181, 157, 108, 0.35);
  opacity: calc(var(--planet-alpha, 1) * 0.95);
}

@keyframes star-twinkle {
  0% {
    opacity: var(--star-min-opacity);
    transform: scale(0.7);
  }
  50% {
    opacity: var(--star-max-opacity);
    transform: scale(1.15);
  }
  100% {
    opacity: var(--star-min-opacity);
    transform: scale(0.76);
  }
}

@keyframes planet-drift {
  from {
    transform: translateX(120vw);
  }
  to {
    transform: translateX(-36vw);
  }
}

@keyframes planet-spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

@keyframes ambient-float-a {
  from {
    transform: translate3d(-46px, -22px, 0) scale(0.98);
  }
  to {
    transform: translate3d(62px, 46px, 0) scale(1.08);
  }
}

@keyframes ambient-float-b {
  from {
    transform: translate3d(34px, 28px, 0) scale(1.02);
  }
  to {
    transform: translate3d(-58px, -50px, 0) scale(0.94);
  }
}

@keyframes ambient-float-c {
  from {
    transform: translate3d(-30px, 46px, 0) scale(0.94);
  }
  to {
    transform: translate3d(56px, -38px, 0) scale(1.06);
  }
}

@keyframes ambient-float-d {
  from {
    transform: translate3d(40px, -28px, 0) scale(1);
  }
  to {
    transform: translate3d(-66px, 36px, 0) scale(1.07);
  }
}

@keyframes ambient-pulse {
  0% {
    opacity: calc(var(--ambient-base-opacity, 0.5) * 0.56);
  }
  50% {
    opacity: var(--ambient-base-opacity, 0.5);
  }
  100% {
    opacity: calc(var(--ambient-base-opacity, 0.5) * 0.56);
  }
}

.ambient {
  position: fixed;
  z-index: 0;
  pointer-events: none;
  filter: blur(52px);
  border-radius: 50%;
  opacity: var(--ambient-base-opacity, 0.5);
  will-change: transform, opacity;
}

.ambient-one {
  width: 720px;
  height: 720px;
  top: -290px;
  left: -250px;
  background: var(--earth-glow);
  --ambient-base-opacity: calc(var(--page-glow-strength) * 0.74);
  animation:
    ambient-float-a 54s ease-in-out infinite alternate,
    ambient-pulse 22s ease-in-out infinite;
}

.ambient-two {
  width: 780px;
  height: 780px;
  right: -290px;
  bottom: -330px;
  background: var(--space-glow);
  --ambient-base-opacity: calc(var(--page-glow-strength) * 0.66);
  animation:
    ambient-float-b 62s ease-in-out infinite alternate,
    ambient-pulse 28s ease-in-out infinite;
  animation-delay: -11s, -4s;
}

.ambient-three {
  width: 670px;
  height: 670px;
  top: 22%;
  left: 18%;
  background: var(--sky-glow);
  --ambient-base-opacity: calc(var(--page-glow-strength) * 0.44);
  animation:
    ambient-float-c 68s ease-in-out infinite alternate,
    ambient-pulse 24s ease-in-out infinite;
  animation-delay: -9s, -12s;
}

.ambient-four {
  width: 860px;
  height: 860px;
  right: 10%;
  top: 42%;
  background: var(--leaf-glow);
  --ambient-base-opacity: calc(var(--page-glow-strength) * 0.4);
  animation:
    ambient-float-d 72s ease-in-out infinite alternate,
    ambient-pulse 26s ease-in-out infinite;
  animation-delay: -20s, -7s;
}

html[data-theme="night"] .ambient {
  display: none;
}

.shell {
  position: relative;
  z-index: 1;
  width: min(1080px, 92vw);
  margin: 0 auto;
  padding: clamp(24px, 4vw, 44px) 0;
}

.site-topbar {
  position: fixed;
  right: max(8px, env(safe-area-inset-right));
  bottom: max(8px, env(safe-area-inset-bottom));
  z-index: 10;
}

.theme-switch {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 2px;
  border-radius: 999px;
  border: 1px solid var(--toggle-border);
  background: var(--toggle-bg);
  backdrop-filter: blur(8px);
}

.theme-option {
  border: 0;
  background: transparent;
  color: var(--toggle-text);
  border-radius: 999px;
  padding: 5px 9px;
  font: inherit;
  font-size: 0.72rem;
  font-weight: 650;
  letter-spacing: 0.03em;
  cursor: pointer;
}

.theme-option:hover {
  opacity: 0.86;
}

.theme-option[data-active="true"] {
  background: var(--pill-bg);
  color: var(--pill-ink);
}

.theme-option:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 2px;
}

.hero {
  margin-bottom: clamp(14px, 2.4vw, 20px);
}

.page-home .hero {
  margin-bottom: clamp(30px, 5.2vw, 56px);
}

.eyebrow {
  margin: 0;
  font-size: 0.75rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
}

h1 {
  margin: 8px 0 8px;
  line-height: 1.02;
  font-size: clamp(2rem, 6vw, 3.8rem);
  letter-spacing: -0.02em;
}

.subhead {
  margin: 0;
  color: var(--muted);
  max-width: 64ch;
  line-height: 1.45;
}

.project-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.project-card,
.detail-layout {
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  transition: background 260ms ease, border-color 260ms ease, box-shadow 260ms ease;
}

html[data-theme="night"] .project-logo,
html[data-theme="night"] .detail-logo,
html[data-theme="night"] .detail-shot {
  background: #0d162b;
}

html[data-theme="night"] .detail-shot {
  box-shadow: 0 20px 40px rgba(2, 8, 19, 0.72);
}

.project-card {
  padding: clamp(14px, 2.4vw, 22px);
}

.project-card-link {
  display: block;
  text-decoration: none;
  color: inherit;
  position: relative;
  padding-right: clamp(72px, 9vw, 118px);
}

.project-card-link:focus-visible {
  outline: 2px solid var(--link);
  outline-offset: 3px;
}

.project-topline {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
}

.project-logo {
  width: 58px;
  height: 58px;
  border-radius: 14px;
  border: 1px solid var(--toggle-border);
  object-fit: cover;
  background: #fff;
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--pill-bg);
  color: var(--pill-ink);
  border-radius: 999px;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 6px 10px;
}

.inline-pill {
  margin-top: 2px;
}

h2 {
  font-size: 1.4rem;
  line-height: 1.2;
  margin: 12px 0 8px;
}

.project-title {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.project-title-pill {
  transform: translateY(1px);
  font-size: 0.58rem;
  padding: 5px 9px;
}

.project-card p {
  margin: 0 0 12px;
  color: var(--muted);
  line-height: 1.4;
}

.project-caret {
  position: absolute;
  right: clamp(24px, 3.8vw, 40px);
  top: 50%;
  transform: translateY(-50%);
  font-size: clamp(3.2rem, 7vw, 5.2rem);
  line-height: 0.8;
  color: transparent;
  -webkit-text-stroke: 2px var(--caret-stroke);
  transition: transform 180ms ease, -webkit-text-stroke-color 180ms ease;
}

.project-card-link:hover .project-caret {
  transform: translateY(-50%) translateX(4px);
  -webkit-text-stroke: 2px var(--caret-stroke-strong);
}

.inline-link {
  color: var(--link);
  text-decoration: underline;
  text-underline-offset: 0.2em;
  font-weight: 600;
}

.subnav a {
  color: var(--link);
}

.subnav a:hover,
.inline-link:hover {
  opacity: 0.82;
}

.subnav {
  margin-bottom: 18px;
  font-size: 0.94rem;
}

.home-back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--toggle-border);
  background: var(--toggle-bg);
  color: var(--toggle-text);
  text-decoration: none;
  font-weight: 650;
  letter-spacing: 0.02em;
  backdrop-filter: blur(8px);
}

.home-back-caret {
  font-size: 1.6rem;
  line-height: 0.8;
}

.home-back-btn:hover {
  opacity: 0.88;
}

.detail-layout {
  padding: clamp(14px, 2.6vw, 24px);
  display: grid;
  gap: clamp(14px, 2vw, 22px);
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.95fr);
  align-items: center;
}

.detail-copy h1 {
  margin-top: 6px;
  margin-bottom: 8px;
}

.detail-media {
  display: grid;
  justify-items: center;
  gap: 12px;
}

.detail-logo {
  width: 88px;
  height: 88px;
  object-fit: contain;
  border-radius: 18px;
  border: 1px solid var(--toggle-border);
  background: #fff;
}

.detail-shot {
  width: min(100%, 270px);
  height: min(46vh, 410px);
  border-radius: 16px;
  border: 1px solid var(--toggle-border);
  object-fit: cover;
  object-position: top;
  box-shadow: 0 14px 34px rgba(20, 28, 40, 0.2);
  background: #fff;
}

.site-legal {
  margin-top: clamp(20px, 4vw, 34px);
  padding-top: 12px;
  padding-right: clamp(110px, 17vw, 190px);
  border-top: 1px solid var(--toggle-border);
}

.site-legal-global {
  width: min(1080px, 92vw);
  margin-left: auto;
  margin-right: auto;
  margin-top: auto;
  padding-bottom: clamp(10px, 2.6vw, 18px);
}

.site-legal p {
  margin: 0 0 6px;
  color: var(--muted);
  font-size: 0.72rem;
  line-height: 1.45;
}

.site-legal p:last-child {
  margin-bottom: 0;
}

.center-screen {
  min-height: 100vh;
  display: grid;
  place-items: center;
}

.notfound-card {
  width: min(560px, 90vw);
  text-align: center;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: 20px;
  box-shadow: var(--shadow);
  padding: 28px;
}

.notfound-card h1 {
  margin-top: 2px;
  margin-bottom: 8px;
  font-size: clamp(1.8rem, 5vw, 2.8rem);
}

.notfound-card p {
  margin-top: 0;
  color: var(--muted);
}

.reveal {
  animation: fade-slide-in 440ms ease-out both;
}

@keyframes fade-slide-in {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 980px) {
  .project-grid {
    grid-template-columns: 1fr;
  }

  .detail-layout {
    grid-template-columns: 1fr;
  }

  .detail-shot {
    height: min(42vh, 380px);
  }
}

@media (max-width: 560px) {
  .shell {
    width: min(1080px, 94vw);
    padding-top: 18px;
    padding-bottom: 20px;
  }

  .ambient {
    display: none;
  }

  .detail-shot {
    width: min(100%, 250px);
    height: min(40vh, 340px);
  }

  .project-card {
    border-radius: 16px;
  }

  .subnav {
    margin-bottom: 12px;
  }

  .theme-option {
    padding: 4px 8px;
    font-size: 0.68rem;
  }

  .project-card-link {
    padding-right: 78px;
  }

  .project-caret {
    right: 18px;
    font-size: 3.3rem;
  }

  .site-legal {
    padding-right: 90px;
  }

  .site-legal-global {
    width: min(1080px, 94vw);
  }
}