:root {
  --bg: #f5f3ee;
  --panel: rgba(255, 255, 255, 0.7);
  --ink: #121212;
  --muted: #5a5a5a;
  --line: rgba(17, 17, 17, 0.08);
  --accent: #ff6a3d;
  --accent-2: #1ca6a6;
  --ok: #0d7a5c;
  --shadow: 0 16px 44px rgba(17, 17, 17, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 18% 12%, rgba(255, 195, 133, 0.85) 0%, transparent 38%),
    radial-gradient(circle at 82% 22%, rgba(141, 225, 225, 0.7) 0%, transparent 40%),
    radial-gradient(circle at 50% 85%, rgba(255, 111, 60, 0.08) 0%, transparent 36%),
    var(--bg);
  color: var(--ink);
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  overflow-x: hidden;
}

.bg-grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.6;
  z-index: -2;
}

.bg-orb {
  position: fixed;
  border-radius: 50%;
  filter: blur(70px);
  opacity: 0.5;
  pointer-events: none;
  z-index: -1;
  animation: drift 10s ease-in-out infinite alternate;
}

.orb-a {
  width: 260px;
  height: 260px;
  background: #ff8f68;
  top: -60px;
  right: 10%;
}

.orb-b {
  width: 340px;
  height: 340px;
  background: #6cc9c9;
  bottom: -80px;
  left: -80px;
  animation-duration: 14s;
}

@keyframes drift {
  from {
    transform: translateY(-12px) translateX(-8px);
  }
  to {
    transform: translateY(14px) translateX(10px);
  }
}

.app-shell {
  width: min(1220px, 94vw);
  margin: 24px auto;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 16px;
  margin-bottom: 16px;
  animation: fade-in 0.6s ease;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(255, 106, 61, 0.16), rgba(28, 166, 166, 0.16));
  border: 1px solid rgba(17, 17, 17, 0.1);
  color: var(--ink);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.brand-mark svg {
  width: 32px;
  height: 32px;
}

.kicker {
  margin: 0;
  font: 500 12px/1.2 "IBM Plex Mono", monospace;
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1 {
  margin: 4px 0 0;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.02;
  letter-spacing: -0.04em;
}

.tagline {
  margin: 0;
  max-width: 32ch;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: right;
}

.layout {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 16px;
}

.panel {
  background: var(--panel);
  border: 1px solid rgba(255, 255, 255, 0.4);
  backdrop-filter: blur(16px);
  border-radius: 20px;
  box-shadow: var(--shadow);
}

.panel::before {
  content: "";
  display: block;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.9), transparent);
  opacity: 0.55;
}

.controls-panel {
  padding: 20px;
  animation: fade-in-up 0.7s ease;
}

.preview-panel {
  padding: 18px;
  animation: fade-in-up 0.85s ease;
}

h2 {
  margin: 0 0 14px;
  font-size: 1.06rem;
}

.upload-zone {
  display: grid;
  place-items: center;
  width: 100%;
  min-height: 120px;
  border: 1.4px dashed rgba(17, 17, 17, 0.3);
  border-radius: 16px;
  text-align: center;
  cursor: pointer;
  padding: 12px;
  transition: 0.2s ease;
  background: rgba(255, 255, 255, 0.55);
}

.upload-zone:hover,
.upload-zone.drag-over {
  transform: translateY(-1px);
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.8);
}

.upload-zone input {
  display: none;
}

.upload-title {
  font-weight: 700;
}

.upload-sub {
  color: var(--muted);
  font-size: 0.85rem;
}

.control-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 12px;
  margin-bottom: 6px;
  font-size: 0.9rem;
}

output {
  color: var(--accent-2);
  font-family: "IBM Plex Mono", monospace;
}

input[type="range"],
select {
  width: 100%;
}

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

select {
  border: 1px solid rgba(17, 17, 17, 0.18);
  border-radius: 12px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.9);
  font: inherit;
}

.toggle {
  margin-top: 12px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
}

.auto-note {
  margin: 12px 0 0;
  padding: 11px 13px;
  border-radius: 13px;
  font-size: 0.8rem;
  color: #0c6d64;
  background: linear-gradient(135deg, rgba(0, 166, 166, 0.13), rgba(255, 107, 53, 0.11));
  border: 1px solid rgba(0, 166, 166, 0.2);
  font-weight: 500;
  letter-spacing: 0.02em;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
  margin-top: 12px;
}

.btn {
  border: none;
  border-radius: 12px;
  padding: 10px 12px;
  font: 500 0.9rem/1 "Space Grotesk", sans-serif;
  background: rgba(17, 17, 17, 0.08);
  color: var(--ink);
  cursor: pointer;
  transition: transform 0.14s ease, background-color 0.2s ease;
}

.btn:hover:not(:disabled) {
  transform: translateY(-1px);
  background: rgba(17, 17, 17, 0.13);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.45;
}

.btn-primary {
  background: linear-gradient(120deg, var(--accent), #ff944d);
  color: #fff;
}

.btn-primary:hover:not(:disabled) {
  background: linear-gradient(120deg, #ff5a20, #ff7f38);
}

.status {
  margin: 14px 2px 2px;
  color: var(--muted);
  font-size: 0.87rem;
}

.preview-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 10px;
}

.meta {
  color: var(--muted);
  margin: 0;
  font-size: 0.84rem;
}

.preview-grid {
  margin-top: 12px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.card {
  margin: 0;
  border: 1px solid rgba(17, 17, 17, 0.1);
  border-radius: 16px;
  overflow: hidden;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: 0 6px 18px rgba(17, 17, 17, 0.05);
}

.card figcaption {
  font: 500 0.8rem/1 "IBM Plex Mono", monospace;
  color: var(--muted);
  padding: 10px 12px;
  border-bottom: 1px solid rgba(17, 17, 17, 0.08);
}

.canvas-wrap,
.ascii-wrap {
  height: min(62vh, 620px);
  overflow: auto;
}

#asciiOutput {
  margin: 0;
  padding: 14px;
  min-height: 100%;
  font: 500 0.8rem/0.94 "IBM Plex Mono", monospace;
  white-space: pre;
}

.hidden {
  display: none !important;
}

#sourceVideo,
#sourceCanvas {
  display: block;
  width: 100%;
  height: auto;
  background: #f1f1f1;
}

@media (max-width: 900px) {
  .topbar {
    align-items: start;
    flex-direction: column;
  }

  .tagline {
    text-align: left;
    max-width: none;
  }

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

#sourceVideo {
  background: #0f0f0f;
}

#asciiOutput {
  margin: 0;
  padding: 12px;
  color: #0d0d0d;
  font: 500 7px/7px "IBM Plex Mono", monospace;
  letter-spacing: 0.25px;
  min-height: 100%;
  background: linear-gradient(180deg, #fff9f0, #f7f7f7);
}

#asciiOutput span {
  display: inline;
}

@keyframes fade-in {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  .preview-grid {
    grid-template-columns: 1fr;
  }

  .canvas-wrap,
  .ascii-wrap {
    height: 360px;
  }
}