:root {
  color-scheme: dark;
  --bg: #111414;
  --panel: #1b2020;
  --panel-strong: #232929;
  --ink: #f4f0e8;
  --muted: #aeb7b4;
  --line: #384140;
  --accent: #48d7b1;
  --accent-ink: #07120f;
  --hot: #ff5b7f;
  --blue: #52a9ff;
  --warn: #f2c94c;
  --shadow: 0 18px 70px rgba(0, 0, 0, 0.34);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

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

html {
  background: var(--bg);
}

body {
  position: relative;
  margin: 0;
  background:
    radial-gradient(circle at 12% 18%, rgba(210, 255, 0, 0.28), transparent 22%),
    radial-gradient(circle at 86% 12%, rgba(255, 0, 166, 0.3), transparent 24%),
    radial-gradient(circle at 76% 82%, rgba(0, 255, 234, 0.24), transparent 28%),
    linear-gradient(122deg, rgba(255, 0, 166, 0.16), transparent 28%, rgba(210, 255, 0, 0.13) 48%, transparent 72%),
    var(--bg);
  background-attachment: fixed;
  color: var(--ink);
  font-family:
    "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Yu Gothic", Meiryo, Inter,
    ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

body::before,
body::after {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  content: "";
}

body::before {
  opacity: 0.72;
  background:
    repeating-linear-gradient(0deg, rgba(244, 240, 232, 0.08) 0 1px, transparent 1px 7px),
    repeating-linear-gradient(104deg, transparent 0 28px, rgba(210, 255, 0, 0.22) 28px 34px, transparent 34px 68px),
    linear-gradient(95deg, transparent 0 8%, rgba(255, 0, 166, 0.36) 8% 13%, transparent 13% 34%, rgba(0, 255, 234, 0.32) 34% 39%, transparent 39% 68%, rgba(210, 255, 0, 0.26) 68% 73%, transparent 73%),
    radial-gradient(circle at 22% 62%, rgba(255, 255, 255, 0.16), transparent 18%);
  mix-blend-mode: hard-light;
  filter: saturate(1.45) contrast(1.22);
  animation: bg-scan 6.4s steps(2, end) infinite;
}

body::after {
  opacity: 0.8;
  background:
    linear-gradient(90deg, transparent 0 5%, rgba(255, 0, 166, 0.42) 5% 8%, transparent 8% 46%, rgba(0, 255, 234, 0.38) 46% 49%, transparent 49%),
    linear-gradient(180deg, transparent 0 12%, rgba(210, 255, 0, 0.34) 12% 17%, transparent 17% 38%, rgba(255, 0, 166, 0.24) 38% 44%, transparent 44% 71%, rgba(0, 255, 234, 0.32) 71% 76%, transparent 76%),
    conic-gradient(from 210deg at 70% 42%, transparent 0 18deg, rgba(210, 255, 0, 0.26) 18deg 32deg, transparent 32deg 128deg, rgba(255, 0, 166, 0.26) 128deg 145deg, transparent 145deg);
  clip-path: polygon(0 0, 100% 3%, 100% 100%, 0 97%);
  mix-blend-mode: screen;
  filter: saturate(1.55) contrast(1.18);
  transform: translate3d(0, 0, 0);
  animation: bg-glitch 5.8s steps(1, end) infinite;
}

button,
input {
  font: inherit;
}

button {
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel-strong);
  color: var(--ink);
  cursor: pointer;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease;
}

button:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
}

button:active {
  transform: translateY(0);
}

.primary-button {
  border-color: transparent;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 800;
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100% - 28px));
  margin: 0 auto;
  padding: 28px 0;
}

.workspace {
  display: grid;
  gap: 18px;
}

.app-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(260px, 390px);
  align-items: end;
  gap: 20px;
  padding: 10px 0 4px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.78), 0 0 18px rgba(72, 215, 177, 0.5);
  text-transform: uppercase;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 0;
  font-size: clamp(2.25rem, 6vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: 0;
  text-shadow: 0 3px 0 rgba(0, 0, 0, 0.82), 3px 0 0 rgba(255, 0, 166, 0.2), -3px 0 0 rgba(0, 255, 234, 0.18);
}

h2 {
  margin-bottom: 0;
  font-size: 1rem;
}

.tagline {
  display: inline-block;
  margin: 14px 0 0;
  padding: 6px 10px;
  border: 1px solid rgba(244, 240, 232, 0.2);
  border-radius: 8px;
  background: rgba(5, 6, 6, 0.66);
  color: var(--ink);
  font-size: clamp(0.95rem, 2.8vw, 1.18rem);
  font-weight: 900;
  line-height: 1.45;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.78);
}

.privacy-note {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.78);
}

.acid-yell {
  justify-self: start;
  margin: 8px 0 0;
  padding: 4px 8px;
  border: 1px solid rgba(210, 255, 0, 0.48);
  background: rgba(5, 6, 6, 0.58);
  color: #d2ff00;
  font-size: clamp(0.92rem, 3vw, 1.25rem);
  font-weight: 900;
  text-shadow:
    2px 0 0 rgba(255, 0, 166, 0.55),
    -2px 0 0 rgba(0, 255, 234, 0.45),
    0 2px 0 rgba(0, 0, 0, 0.78);
  transform: rotate(-1.5deg);
}

.upload-panel {
  min-height: 280px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px;
  padding: 28px;
  border: 1px dashed #566260;
  border-radius: 8px;
  background: rgba(27, 32, 32, 0.82);
  box-shadow: var(--shadow);
}

.upload-panel.is-dragging {
  border-color: var(--accent);
  background: rgba(72, 215, 177, 0.11);
}

#fileInput {
  position: absolute;
  inline-size: 1px;
  block-size: 1px;
  opacity: 0;
  pointer-events: none;
}

.upload-copy {
  display: flex;
  align-items: center;
  gap: 18px;
  min-width: 0;
}

.upload-icon {
  display: grid;
  flex: 0 0 60px;
  width: 60px;
  height: 60px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  color: var(--accent);
  font-size: 2.4rem;
  line-height: 1;
}

.upload-copy p {
  max-width: 58ch;
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.upload-actions,
.camera-controls {
  display: grid;
  gap: 10px;
}

.camera-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 18px;
  align-items: start;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(27, 32, 32, 0.9);
  box-shadow: var(--shadow);
}

.camera-view {
  position: relative;
  min-width: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #050606;
  aspect-ratio: 1 / 1;
}

.camera-view video {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scaleX(-1);
}

.camera-guide {
  position: absolute;
  inset: 10%;
  pointer-events: none;
  border: 1px solid rgba(72, 215, 177, 0.48);
  border-radius: 50%;
}

.camera-guide::before,
.camera-guide::after {
  position: absolute;
  content: "";
  background: rgba(72, 215, 177, 0.5);
}

.camera-guide::before {
  left: 50%;
  top: -8%;
  bottom: -8%;
  width: 1px;
}

.camera-guide::after {
  top: 42%;
  left: 16%;
  right: 16%;
  height: 1px;
}

.guide-text {
  position: absolute;
  top: 36%;
  left: 50%;
  max-width: 13em;
  translate: -50% -100%;
  padding: 6px 9px;
  border: 1px solid rgba(72, 215, 177, 0.52);
  border-radius: 8px;
  background: rgba(5, 6, 6, 0.62);
  color: var(--accent);
  font-size: clamp(0.78rem, 2.6vw, 0.95rem);
  font-weight: 800;
  text-align: center;
  white-space: nowrap;
}

.guide-dot {
  position: absolute;
  top: 42%;
  left: 50%;
  width: 12px;
  height: 12px;
  translate: -50% -50%;
  border: 2px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 6px rgba(72, 215, 177, 0.12);
}

.camera-placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 20px;
  color: var(--muted);
  text-align: center;
}

.camera-note {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--muted);
  line-height: 1.6;
}

.editor {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr) 320px;
  grid-template-areas: "source output controls";
  gap: 18px;
}

.preview-pane,
.controls {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(27, 32, 32, 0.9);
  box-shadow: var(--shadow);
}

.preview-pane {
  min-width: 0;
  overflow: hidden;
}

.source-pane {
  grid-area: source;
}

.output-pane {
  grid-area: output;
}

.pane-title {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  min-height: 54px;
  padding: 16px;
  border-bottom: 1px solid var(--line);
}

.pane-title span {
  color: var(--muted);
  font-size: 0.85rem;
  text-align: right;
}

.canvas-wrap {
  position: relative;
}

canvas {
  display: block;
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #050606;
}

.processing {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background: rgba(5, 6, 6, 0.68);
  color: var(--accent);
  font-weight: 800;
}

.controls {
  display: grid;
  grid-area: controls;
  align-content: start;
  gap: 18px;
  padding: 18px;
}

.control-block label {
  display: block;
  margin-bottom: 10px;
  font-weight: 800;
}

.slider-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 42px;
  align-items: center;
  gap: 12px;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

output {
  color: var(--accent);
  font-weight: 800;
  text-align: right;
}

.button-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.effect-list {
  display: grid;
  gap: 8px;
}

.effect-pill {
  display: flex;
  justify-content: space-between;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(35, 41, 41, 0.72);
  color: var(--muted);
  font-size: 0.88rem;
}

.effect-pill strong {
  color: var(--ink);
}

.seo-strip {
  display: grid;
  gap: 12px;
  margin: 8px 0 0;
  padding: 8px 0 0;
}

.seo-strip h2 {
  width: fit-content;
  margin: 0;
  padding: 5px 9px;
  border: 1px solid rgba(210, 255, 0, 0.55);
  background: rgba(5, 6, 6, 0.78);
  color: #d2ff00;
  font-size: 0.95rem;
  font-weight: 900;
  transform: rotate(-0.8deg);
}

.seo-strip p {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
  margin: 0;
  line-height: 1.9;
}

.seo-strip span {
  display: inline;
  padding: 4px 8px 5px;
  background: rgba(5, 6, 6, 0.82);
  box-decoration-break: clone;
  -webkit-box-decoration-break: clone;
  color: var(--ink);
  font-size: clamp(0.86rem, 2.5vw, 0.98rem);
  font-weight: 700;
  text-shadow: 0 2px 0 rgba(0, 0, 0, 0.72);
}

.seo-strip span:nth-child(2n) {
  transform: translateY(2px) rotate(0.25deg);
}

.seo-strip span:nth-child(3n) {
  border-bottom: 2px solid rgba(255, 0, 166, 0.5);
}

.site-footer {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  justify-content: center;
  padding: 18px 0 8px;
  color: var(--muted);
  font-size: 0.92rem;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

.text-page {
  max-width: 840px;
  margin: 0 auto;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(27, 32, 32, 0.9);
  box-shadow: var(--shadow);
  line-height: 1.9;
}

.text-page h1 {
  margin-bottom: 24px;
  font-size: clamp(2rem, 7vw, 4.4rem);
}

.text-page h2 {
  margin: 28px 0 8px;
  font-size: 1.15rem;
}

.text-page p {
  color: var(--muted);
}

.back-link {
  display: inline-block;
  margin-bottom: 18px;
  font-weight: 800;
}

.info-list {
  display: grid;
  gap: 12px;
  margin: 0 0 24px;
}

.info-list div {
  display: grid;
  grid-template-columns: 140px minmax(0, 1fr);
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.info-list dt {
  color: var(--ink);
  font-weight: 800;
}

.info-list dd {
  margin: 0;
  color: var(--muted);
  overflow-wrap: anywhere;
}

.updated-date {
  margin-top: 28px;
  font-size: 0.9rem;
}

@keyframes bg-scan {
  0%,
  100% {
    transform: translateY(0);
    filter: hue-rotate(0deg);
  }

  35% {
    transform: translateY(-14px) skewX(-1deg);
    filter: hue-rotate(38deg) saturate(1.5);
  }

  36% {
    transform: translateY(6px);
  }

  72% {
    transform: translateY(18px) skewX(1deg);
    filter: hue-rotate(-32deg) saturate(1.35);
  }
}

@keyframes bg-glitch {
  0%,
  100% {
    transform: translate3d(0, 0, 0);
    opacity: 0.6;
  }

  12% {
    transform: translate3d(28px, -10px, 0);
    opacity: 0.9;
  }

  14% {
    transform: translate3d(-18px, 10px, 0);
    opacity: 0.62;
  }

  48% {
    transform: translate3d(0, 0, 0) skewY(-1deg);
  }

  50% {
    transform: translate3d(-34px, 8px, 0) skewY(1.4deg);
  }
}

@media (max-width: 980px) {
  .app-header,
  .editor,
  .camera-panel {
    grid-template-columns: 1fr;
  }

  .editor {
    grid-template-areas:
      "output"
      "controls"
      "source";
  }
}

@media (max-width: 640px) {
  body::before {
    opacity: 0.56;
  }

  body::after {
    opacity: 0.58;
  }

  .app-shell {
    width: min(100% - 20px, 1180px);
    padding: 14px 0;
  }

  .upload-panel {
    grid-template-columns: 1fr;
    padding: 20px;
  }

  .upload-actions {
    grid-template-columns: 1fr;
  }

  .upload-copy {
    align-items: flex-start;
  }

  .upload-icon {
    flex-basis: 48px;
    width: 48px;
    height: 48px;
    font-size: 2rem;
  }

  .seo-strip {
    gap: 10px;
  }

  .seo-strip p {
    display: grid;
    gap: 7px;
  }

  .seo-strip span {
    width: fit-content;
    max-width: 100%;
  }

  .text-page {
    padding: 20px;
  }

  .info-list div {
    grid-template-columns: 1fr;
    gap: 4px;
  }
}

@media (prefers-reduced-motion: reduce) {
  body::before,
  body::after {
    animation: none;
  }
}