/*
 * MOTION LAYER — adapted from the original uploaded PHP interface.
 * Keeps the existing layout/colors in style.css unchanged.
 * Hover animations are intentionally subtle and run only while interacting.
 * Scrolling and touch reactions are managed in assets/js/app.js.
 */

/* 1. Hand-painted lime fill: left-to-right on every highlighted phrase. */
.highlight::before {
  transform: scaleX(0) rotate(-1.5deg);
  transform-origin: left center;
  animation: hero-lime-sweep 950ms 530ms cubic-bezier(.2,.8,.2,1) forwards;
}
@keyframes hero-lime-sweep {
  to { transform: scaleX(1) rotate(-1.5deg); }
}
.highlight svg path {
  stroke-dasharray: 340;
  stroke-dashoffset: 340;
  animation: accent-draw 820ms 1050ms cubic-bezier(.2,.8,.2,1) forwards;
}
@keyframes accent-draw { to { stroke-dashoffset: 0; } }

/* The other three green highlighting treatments paint only after scrolling into view. */
.underline-accent::after {
  transform: scaleX(0) rotate(-2deg);
  transform-origin: left center;
}
.is-visible .underline-accent::after {
  animation: feature-lime-sweep 850ms 180ms cubic-bezier(.2,.8,.2,1) forwards;
}
@keyframes feature-lime-sweep {
  to { transform: scaleX(1) rotate(-2deg); }
}
.highlight-small,
.about-text h2 em {
  background: linear-gradient(transparent 59%, var(--lime) 59%) left bottom / 0% 100% no-repeat;
}
.is-visible .highlight-small,
.about-text.is-visible h2 em {
  animation: lime-band-sweep 900ms 150ms cubic-bezier(.2,.8,.2,1) forwards;
}
@keyframes lime-band-sweep { to { background-size: 100% 100%; } }
/* If JS never loads, do not leave the lower-page highlights unpainted. */
html:not(.motion-enabled) .underline-accent::after { transform: rotate(-2deg); }
html:not(.motion-enabled) .highlight-small,
html:not(.motion-enabled) .about-text h2 em { background-size: 100% 100%; }

/* 2. Page-load entrance, same staggered upward reveal as the first design. */
@keyframes intro-rise {
  from { opacity: 0; transform: translateY(23px); }
  to   { opacity: 1; transform: translateY(0); }
}
.hero-copy > .eyebrow { animation: intro-rise 680ms 60ms both cubic-bezier(.2,.8,.2,1); }
.hero-copy > h1 { animation: intro-rise 720ms 150ms both cubic-bezier(.2,.8,.2,1); }
.hero-copy > .hero-description { animation: intro-rise 720ms 250ms both cubic-bezier(.2,.8,.2,1); }
.hero-copy > .hero-actions { animation: intro-rise 720ms 320ms both cubic-bezier(.2,.8,.2,1); }
.hero-copy > .benefit-list { animation: intro-rise 720ms 400ms both cubic-bezier(.2,.8,.2,1); }
.hero-copy > .hero-footnote { animation: intro-rise 720ms 470ms both cubic-bezier(.2,.8,.2,1); }
/* Animate the workspace as a whole, leaving cards free to move on hover. */
.hero-workspace { animation: intro-rise 780ms 250ms both cubic-bezier(.2,.8,.2,1); }

/* Reveals are opt-in from JS; no-JS pages retain all their content. */
.will-reveal {
  opacity: 0;
  transform: translateY(25px);
  transition: opacity 750ms ease, transform 750ms cubic-bezier(.2,.8,.2,1);
}
.will-reveal.is-visible { opacity: 1; transform: none; }

/* 3. Upload hover: entire card gently wiggles; cloud bobs, tilts and grows. */
.upload-card {
  transition: border-color 250ms, box-shadow 300ms, transform 300ms;
  transform-origin: center center;
}
.dropzone {
  transition: border-color 250ms, background-color 250ms, transform 350ms, box-shadow 350ms;
}
.upload-graphic { transform-origin: center center; }
.upload-cloud-icon {
  transition: background-color 300ms, box-shadow 300ms;
  transform-origin: center center;
  animation: cloud-idle 4200ms ease-in-out infinite;
}
@keyframes cloud-idle {
  0%,100% { transform: translateY(0) rotate(-7deg); }
  50% { transform: translateY(-6px) rotate(-4deg); }
}
@keyframes cloud-hover {
  0%,100% { transform: translateY(0) rotate(-8deg) scale(1.06); }
  25% { transform: translateY(-9px) rotate(-2deg) scale(1.14); }
  50% { transform: translateY(-4px) rotate(4deg) scale(1.12); }
  75% { transform: translateY(-11px) rotate(-3deg) scale(1.15); }
}
@keyframes upload-card-wiggle {
  0%,100% { transform: translateY(-4px) rotate(-.23deg); }
  50% { transform: translateY(-7px) rotate(.23deg); }
}
@keyframes ring-turn {
  from { transform: rotate(-23deg); }
  to { transform: rotate(337deg); }
}
@keyframes ring-turn-reverse {
  from { transform: rotate(-23deg); }
  to { transform: rotate(-383deg); }
}
@keyframes upload-error-shake {
  0%,100% { transform: translateX(0); }
  20%,60% { transform: translateX(-6px); }
  40%,80% { transform: translateX(6px); }
}
.upload-card.is-invalid { animation: upload-error-shake 460ms ease-in-out !important; }

/* 4. Cards lift and wiggle; icons swell and rotate like the original UI. */
@keyframes card-float-wiggle {
  0%,100% { transform: translateY(-5px) rotate(-.20deg); }
  50% { transform: translateY(-9px) rotate(.20deg); }
}
.method-icon,
.process-icon,
.benefit-icon,
.metric-icon,
.state-emblem,
.brand-icon,
.about-art-center,
.about-art-badge {
  transition: transform 400ms cubic-bezier(.34,1.56,.64,1),
              background-color 260ms ease, box-shadow 260ms ease;
}
.method-card,
.report-card,
.process-step {
  transition: transform 300ms cubic-bezier(.2,.8,.2,1),
              box-shadow 300ms ease, border-color 260ms ease, background-color 260ms ease;
}
.method-card:is(:hover,.is-touched,.is-keyboard-active) .method-icon {
  transform: rotate(-9deg) scale(1.17);
  background: var(--lime);
  box-shadow: 0 12px 23px rgba(171,211,45,.23);
}
.method-card:is(:hover,.is-touched,.is-keyboard-active) .method-icon svg { transform: scale(1.1); }
.method-icon svg,
.process-icon svg,
.metric-icon svg { transition: transform 380ms cubic-bezier(.34,1.56,.64,1); }
.method-card:is(:hover,.is-touched,.is-keyboard-active) .method-tag svg { transform: translate(3px,-3px); }
.method-tag svg { transition: transform 250ms ease; }
.process-step:is(:hover,.is-touched,.is-keyboard-active) .process-icon {
  transform: rotate(-8deg) scale(1.15);
  background: var(--lime);
  box-shadow: 0 10px 21px rgba(171,211,45,.23);
}
.process-step:is(:hover,.is-touched,.is-keyboard-active) .process-icon svg { transform: scale(1.06); }
.benefit-list li:is(:hover,.is-touched) .benefit-icon {
  transform: rotate(-10deg) scale(1.16);
  background: var(--lime);
  box-shadow: 0 9px 15px rgba(171,211,45,.25);
}
.metric-row:is(:hover,.is-touched) {
  transform: translateX(4px);
  background-color: #f5fae9;
  border-radius: 8px;
}
.metric-row { transition: transform 270ms ease, background-color 250ms ease; }
.metric-row:is(:hover,.is-touched) .metric-icon { transform: rotate(-8deg) scale(1.18); background: var(--lime); }
.report-card:is(:hover,.is-touched) .report-image-wrap img { transform: scale(1.075); }
.report-image-wrap img { transition: transform 700ms cubic-bezier(.2,.8,.2,1); }
.report-card:is(:hover,.is-touched) .state-emblem { transform: rotate(-11deg) scale(1.17); background: var(--lime); }
.brand:hover .brand-icon { transform: rotate(-8deg) scale(1.09); }
.about-art:is(:hover,.is-touched) .about-art-center { transform: rotate(-3deg) scale(1.06); }
.about-art:is(:hover,.is-touched) .badge-left { transform: rotate(-20deg) scale(1.17); }
.about-art:is(:hover,.is-touched) .badge-right { transform: rotate(19deg) scale(1.17); }
.about-orbit { transition: transform 650ms ease; }
.about-art:is(:hover,.is-touched) .about-orbit-one { transform: rotate(6deg); }
.about-art:is(:hover,.is-touched) .about-orbit-two { transform: rotate(-39deg); }

/* Buttons and navigation: tiny arrow glide / underline feedback. */
.btn .icon { transition: transform 240ms cubic-bezier(.2,.8,.2,1); }
.btn:is(:hover,:focus-visible) .icon { transform: translate(3px,-3px); }
.nav-link::after { transition: transform 380ms cubic-bezier(.2,.8,.2,1); }

/* 5. Hover-capable pointers get repeated wiggles while hovering. */
@media (hover: hover) and (pointer: fine) {
  .upload-card:hover,
  .upload-card:focus-within:not(.is-invalid) {
    border-color: #d3e4a8;
    box-shadow: 0 24px 49px rgba(59,86,30,.13);
    animation: upload-card-wiggle 1850ms ease-in-out infinite;
  }
  .upload-card:hover .dropzone,
  .upload-card:focus-within .dropzone {
    border-color: #a5c93a;
    background: #f4fae4;
    box-shadow: inset 0 0 23px rgba(207,235,136,.18);
  }
  .upload-card:hover .upload-cloud-icon,
  .upload-card:focus-within .upload-cloud-icon {
    animation: cloud-hover 1500ms ease-in-out infinite;
  }
  .upload-card:hover .ring-one,
  .upload-card:focus-within .ring-one { animation: ring-turn 9000ms linear infinite; }
  .upload-card:hover .ring-two,
  .upload-card:focus-within .ring-two { animation: ring-turn-reverse 12500ms linear infinite; }
  .method-card:hover,
  .report-card:hover { animation: card-float-wiggle 2100ms ease-in-out infinite; }
  .method-card:hover { border-color: #d0e3a2; box-shadow: 0 19px 40px rgba(59,86,30,.13); }
  .report-card:hover { box-shadow: 0 21px 44px rgba(59,86,30,.13); }
  .process-step:hover { animation: card-float-wiggle 2300ms ease-in-out infinite; border-color: #d5e4bc; }
}

/* Touch devices get a brief motion on tap, rather than a stuck hover animation. */
.upload-card.is-touched { animation: upload-card-wiggle 900ms ease-in-out 2; }
.upload-card.is-touched .upload-cloud-icon { animation: cloud-hover 900ms ease-in-out 2; }
.upload-card.is-touched .dropzone { border-color:#a5c93a; background:#f4fae4; }
.method-card.is-touched,
.report-card.is-touched,
.process-step.is-touched { animation: card-float-wiggle 900ms ease-in-out 2; }

/* Prefer-reduced-motion should remove movement without removing the lime color. */
@media (prefers-reduced-motion: reduce) {
  .highlight::before { animation: none !important; transform: rotate(-1.5deg); }
  .highlight svg path { animation: none !important; stroke-dashoffset: 0; }
  .underline-accent::after { animation: none !important; transform: rotate(-2deg); }
  .highlight-small,
  .about-text h2 em { animation: none !important; background-size: 100% 100%; }
  .will-reveal { opacity: 1 !important; transform: none !important; }
  .upload-cloud-icon,
  .upload-card,
  .method-card,
  .report-card,
  .process-step { animation: none !important; }
}


/* AI image analysis loading animation */

#analyzeButton.is-analyzing {
  cursor: wait;
  opacity: 0.85;
}

#analyzeButton.is-analyzing::after {
  content: "";
  display: inline-block;
  width: 16px;
  height: 16px;
  margin-left: 10px;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  vertical-align: middle;
  animation: ai-spin 0.8s linear infinite;
}

@keyframes ai-spin {
  to {
    transform: rotate(360deg);
  }
}

@media (prefers-reduced-motion: reduce) {
  #analyzeButton.is-analyzing::after {
    animation: none;
  }
}


/* Real AI detection confidence bars */

.confidence-bars {
  display: grid;
  gap: 22px;
  margin: 24px 0;
  padding: 20px;
  border-radius: 16px;
  background: rgba(128, 128, 128, 0.07);
}

.confidence-bars[hidden] {
  display: none;
}

.confidence-row {
  display: grid;
  gap: 10px;
}

.confidence-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  font-size: 14px;
}

.confidence-label strong {
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}

.confidence-track {
  width: 100%;
  height: 12px;
  overflow: hidden;
  border-radius: 999px;
  background: rgba(128, 128, 128, 0.16);
}

.confidence-fill {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  transition: width 1s cubic-bezier(0.22, 1, 0.36, 1);
}

.confidence-ai {
  background: linear-gradient(90deg, #84cc16, #bef264);
}

.confidence-human {
  background: linear-gradient(90deg, #2563eb, #60a5fa);
}

@media (prefers-reduced-motion: reduce) {
  .confidence-fill {
    transition: none;
  }
}


/* AI analysis statistics dashboard */

.analytics-section {
  padding: 80px 24px;
}

.analytics-container {
  max-width: 1150px;
  margin: 0 auto;
}

.analytics-container h2 {
  font-size: clamp(28px, 4vw, 42px);
  margin-bottom: 12px;
}

.analytics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 32px;
}

.analytics-card {
  padding: 28px;
  border-radius: 20px;
  border: 1px solid rgba(128,128,128,0.18);
  background: rgba(128,128,128,0.05);
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.analytics-card span {
  font-size: 14px;
  opacity: 0.75;
}

.analytics-card strong {
  font-size: 36px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
}

.analytics-history {
  margin-top: 45px;
}

#analysisHistory {
  list-style: none;
  padding: 0;
  display: grid;
  gap: 12px;
}

#analysisHistory li {
  padding: 16px 20px;
  border: 1px solid rgba(128,128,128,0.15);
  border-radius: 12px;
}

.analytics-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.analytics-actions button {
  padding: 12px 20px;
  border-radius: 12px;
  border: 1px solid currentColor;
  background: transparent;
  color: inherit;
  cursor: pointer;
}

@media (max-width: 900px) {
  .analytics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 520px) {
  .analytics-grid {
    grid-template-columns: 1fr;
  }
}


/* Compact SynthID verification section */

.synthid-section {
  padding: 28px 24px;
}

.synthid-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 24px 30px;
  border: 1px solid #e2e9d8;
  border-radius: 22px;
  background: #f5f9ea;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
}

.synthid-content {
  flex: 1;
  min-width: 0;
}

.synthid-eyebrow {
  color: #668531;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.2px;
}

.synthid-content h2 {
  margin: 8px 0;
  color: #1b211d;
  font-size: clamp(18px, 2vw, 23px);
  font-weight: 700;
  line-height: 1.3;
}

.synthid-content p {
  margin: 0;
  color: #778174;
  font-size: 14px;
  line-height: 1.6;
}

.synthid-action {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  flex-shrink: 0;
  padding: 14px 22px;
  background: #1b211d;
  color: #fff;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 600;
  text-decoration: none;
  transition: transform 0.2s ease;
}

.synthid-action:hover {
  transform: translateY(-2px);
}

@media (max-width: 700px) {
  .synthid-inner {
    flex-direction: column;
    align-items: stretch;
    padding: 22px;
  }

  .synthid-action {
    width: 100%;
  }
}