:root {
  --bg: #f6f2e8;
  --ink: #112018;
  --ink-soft: #314338;
  --card: rgba(255, 255, 255, 0.78);
  --line: rgba(17, 32, 24, 0.16);
  --brand: #d4651d;
  --brand-2: #157a6e;
  --danger: #b3261e;
  --shadow: 0 12px 40px rgba(17, 32, 24, 0.12);
  
  /* Responsive spacing */
  --space-xs: clamp(0.25rem, 1vw, 0.5rem);
  --space-sm: clamp(0.5rem, 2vw, 0.8rem);
  --space-md: clamp(0.8rem, 3vw, 1.2rem);
  --space-lg: clamp(1rem, 4vw, 1.8rem);
  --padding: clamp(0.75rem, 3vw, 1.5rem);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  width: 100%;
  overflow-x: hidden;
}

body {
  background: radial-gradient(circle at 20% 10%, #f9cf7a 0%, transparent 35%),
    radial-gradient(circle at 80% 20%, #90d8c8 0%, transparent 38%),
    var(--bg);
  color: var(--ink);
  font-family: "Space Grotesk", sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.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: min(36px, 3vw) min(36px, 3vw);
  opacity: 0.35;
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(100%, calc(100% - var(--space-md)));
  max-width: 1400px;
  margin: var(--space-md) auto 2rem;
  display: grid;
  gap: var(--space-md);
  animation: rise 450ms ease-out;
  padding: 0 var(--space-sm);
}

.hero {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.hero > div:first-child {
  flex: 1;
  min-width: clamp(200px, 100%, 600px);
}

.kicker {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin: 0;
  color: var(--ink-soft);
  font-size: clamp(0.65rem, 1.5vw, 0.85rem);
}

h1,
h2,
h3 {
  margin: 0;
}

h1 {
  font-size: clamp(1.4rem, 5vw, 2.8rem);
  line-height: 1.2;
  margin: 0.2rem 0;
}

h2 {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
}

.sub {
  margin: 0.3rem 0 0 0;
  color: var(--ink-soft);
  font-size: clamp(0.85rem, 2vw, 1rem);
  line-height: 1.4;
}

.status-pill {
  align-self: center;
  padding: clamp(0.4rem, 1vw, 0.7rem) clamp(0.6rem, 2vw, 1rem);
  border-radius: 999px;
  font-weight: 700;
  font-size: clamp(0.75rem, 1.5vw, 0.9rem);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.85);
  white-space: nowrap;
}

.panel {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: clamp(12px, 3vw, 20px);
  box-shadow: var(--shadow);
  backdrop-filter: blur(8px);
  padding: var(--padding);
}

.controls .control-grid {
  margin-top: var(--space-md);
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(120px, 25%, 250px), 1fr));
  gap: var(--space-md);
}

label {
  display: grid;
  gap: 0.35rem;
  font-size: clamp(0.75rem, 1.5vw, 0.95rem);
  color: var(--ink-soft);
  min-width: 0;
}

input,
select,
textarea,
button {
  font-family: inherit;
  font-size: inherit;
}

input[type="text"],
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.8);
  padding: clamp(0.5rem, 1.5vw, 0.8rem);
  color: var(--ink);
  min-height: 44px;
  font-size: clamp(0.85rem, 1.5vw, 1rem);
}

input[type="text"]:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(212, 101, 29, 0.1);
}

input[type="checkbox"] {
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.toggle {
  display: flex;
  align-items: center;
  gap: clamp(0.35rem, 1.5vw, 0.6rem);
  justify-content: center;
  border: 1px dashed var(--line);
  border-radius: 12px;
  padding: clamp(0.4rem, 1vw, 0.7rem);
  min-height: 44px;
}

.button-row {
  margin-top: var(--space-md);
  display: flex;
  gap: clamp(0.5rem, 1vw, 0.8rem);
  flex-wrap: wrap;
}

.btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: clamp(0.5rem, 1.5vw, 0.8rem) clamp(0.7rem, 2vw, 1.2rem);
  border-radius: 12px;
  cursor: pointer;
  font-weight: 700;
  font-size: clamp(0.8rem, 1.5vw, 0.95rem);
  transition: transform 120ms ease, box-shadow 120ms ease;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  white-space: nowrap;
}

.btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.btn:active {
  transform: translateY(0);
}

.btn-start {
  background: linear-gradient(135deg, #ff9f5a, var(--brand));
  color: #fff;
  border-color: transparent;
}

.btn-stop {
  background: linear-gradient(135deg, #ed7a67, var(--danger));
  color: #fff;
  border-color: transparent;
}

@media (max-width: 640px) {
  .button-row .btn {
    flex: 1;
    min-width: clamp(80px, 45%, 150px);
  }
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(140px, 30%, 250px), 1fr));
  gap: var(--space-md);
}

.stat {
  padding: var(--space-md);
}

.stat .big {
  font-size: clamp(1.4rem, 4vw, 2.4rem);
  font-weight: 700;
  margin: 0.35rem 0;
  line-height: 1.1;
}

.stat-label {
  font-size: clamp(0.75rem, 1.5vw, 0.9rem);
  color: var(--ink-soft);
}

.mono,
pre {
  font-family: "IBM Plex Mono", monospace;
  font-size: clamp(0.75rem, 1.5vw, 0.9rem);
}

.progress-track {
  height: 12px;
  background: rgba(17, 32, 24, 0.09);
  border-radius: 999px;
  overflow: hidden;
  width: 100%;
}

.progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--brand-2), var(--brand));
  transition: width 350ms ease;
}

.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

#promptEditor {
  height: clamp(200px, 50vh, 400px);
  resize: vertical;
  line-height: 1.45;
  font-size: clamp(0.8rem, 1.5vw, 0.9rem);
}

.inline-controls {
  display: flex;
  gap: clamp(0.3rem, 1vw, 0.6rem);
  flex-wrap: wrap;
}

.regen-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-md);
}

@media (min-width: 768px) {
  .regen-grid {
    grid-template-columns: 1fr 1fr;
  }
}

#sceneEditor {
  margin-top: var(--space-md);
  height: clamp(180px, 45vh, 320px);
  resize: vertical;
  line-height: 1.45;
  font-size: clamp(0.8rem, 1.5vw, 0.9rem);
}

#logs {
  margin: 0;
  min-height: clamp(180px, 40vh, 400px);
  max-height: 80vh;
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: var(--space-md);
  background: #0f1d16;
  color: #dceadf;
  font-size: clamp(0.75rem, 1.5vw, 0.9rem);
  line-height: 1.5;
}

#files {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(180px, 40%, 320px), 1fr));
  gap: var(--space-md);
}

.file-card {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: var(--space-md);
  background: rgba(255, 255, 255, 0.72);
  overflow: hidden;
  transition: transform 200ms ease, box-shadow 200ms ease;
}

.file-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
}

.file-meta {
  font-size: clamp(0.75rem, 1.5vw, 0.9rem);
  color: var(--ink-soft);
  margin-top: 0.4rem;
  word-break: break-word;
}

.file-card video {
  width: 100%;
  height: auto;
  max-height: 400px;
  border-radius: 10px;
  margin-top: 0.4rem;
  background: #000;
  display: block;
}

a {
  color: #005a8f;
  text-decoration: none;
  transition: color 150ms ease;
}

a:hover {
  color: #003d63;
  text-decoration: underline;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Mobile-first responsive design */

/* Extra small devices (320px and up) */
@media (max-width: 480px) {
  .app-shell {
    gap: var(--space-sm);
    margin: var(--space-sm) auto 1rem;
  }

  .controls .control-grid {
    grid-template-columns: repeat(auto-fit, minmax(clamp(100px, 100%, 150px), 1fr));
  }

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

  .button-row {
    width: 100%;
  }

  .button-row .btn {
    flex: 1;
    min-width: 60px;
  }

  #files {
    grid-template-columns: 1fr;
  }

  .hero {
    gap: var(--space-sm);
  }

  .panel-head {
    gap: var(--space-sm);
  }

  #logs {
    min-height: 150px;
    max-height: 60vh;
  }

  .inline-controls {
    flex-direction: column;
  }

  .inline-controls .btn {
    width: 100%;
  }
}

/* Small devices (481px and up) */
@media (min-width: 481px) and (max-width: 767px) {
  .app-shell {
    gap: var(--space-md);
  }

  .controls .control-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: var(--space-sm);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  #files {
    grid-template-columns: 1fr;
  }

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

/* Medium devices (768px and up) */
@media (min-width: 768px) {
  .controls .control-grid {
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  }

  .stats-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  #files {
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  }

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

/* Large devices (1024px and up) */
@media (min-width: 1024px) {
  .controls .control-grid {
    grid-template-columns: repeat(4, minmax(140px, 1fr));
  }

  #files {
    grid-template-columns: repeat(2, minmax(280px, 1fr));
  }
}

/* Extra large devices (1400px and up) */
@media (min-width: 1400px) {
  #files {
    grid-template-columns: repeat(3, minmax(300px, 1fr));
  }
}

/* Touch device optimizations */
@media (hover: none) and (pointer: coarse) {
  .btn {
    min-height: 48px;
    padding: clamp(0.6rem, 2vw, 0.9rem) clamp(1rem, 2.5vw, 1.5rem);
  }

  .file-card:hover {
    transform: none;
  }

  .file-card:active {
    opacity: 0.9;
  }
}

/* Landscape orientation adjustments */
@media (orientation: landscape) and (max-height: 500px) {
  .app-shell {
    gap: var(--space-sm);
    margin: var(--space-sm) auto;
  }

  #promptEditor,
  #sceneEditor {
    height: auto;
    max-height: 300px;
  }

  #logs {
    min-height: 200px;
    max-height: 350px;
  }

  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
  }
}

/* High DPI displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
  .panel,
  .file-card {
    border-color: rgba(17, 32, 24, 0.2);
  }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}