html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Helvetica Neue", Arial, sans-serif;
  background: #f4f4f6;
  color: #111;
}

#gabor-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 60px 20px 80px;
  background: radial-gradient(circle at top, #1b1f3b, #05070f 70%);
  color: #fff;
  overflow: hidden;
  --hero-shift: 0;
  --hero-glow: 0;
  transform: translateY(calc(var(--hero-shift) * 1px));
  transition: transform 0.2s ease, box-shadow 0.3s ease;
  will-change: transform;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05), transparent 60%);
  pointer-events: none;
  opacity: calc(1 - var(--hero-glow, 0) * 0.3);
  transition: opacity 0.3s ease;
}

#gabor-hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 140px;
  background: linear-gradient(180deg, rgba(5, 7, 15, 0) 0%, rgba(5, 7, 15, 0.85) 100%);
  opacity: calc(var(--hero-glow, 0) * 0.85);
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.hero-content {
  max-width: 1200px;
  width: 100%;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 40px;
  z-index: 1;
  align-items: center;
}

.hero-text h1 {
  font-size: clamp(32px, 6vw, 64px);
  margin: 10px 0 20px;
}

.hero-text {
  max-width: 520px;
}

.hero-kicker {
  letter-spacing: 0.3em;
  text-transform: uppercase;
  font-size: 12px;
  color: #65c7ff;
}

.hero-description {
  font-size: 18px;
  line-height: 1.6;
  color: rgba(255, 255, 255, 0.9);
}

.hero-viewer {
  background: rgba(15, 20, 40, 0.8);
  border-radius: 24px;
  padding: 20px;
  box-shadow: 0 40px 80px rgba(5, 7, 15, 0.6);
  min-height: 420px;
}

#hero-video-wrapper {
  position: relative;
  width: 100%;
  height: 420px;
  border-radius: 18px;
  background: #03050b;
  overflow: hidden;
}

#hero-teaser-video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 18px;
}

.hero-video-label {
  margin-top: 16px;
  text-align: center;
  font-size: 16px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.8);
}

.hero-scroll-hint {
  z-index: 1;
  margin-top: 60px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.7);
}

.scroll-down-btn {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(4, 164, 255, 0.2);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.4);
  padding: 14px 32px;
  border-radius: 99px;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  backdrop-filter: blur(8px);
  display: inline-flex;
  align-items: center;
  gap: 12px;
  transition: transform 0.3s ease, background 0.3s ease;
  z-index: 1;
}

.scroll-down-btn:hover {
  transform: translate(-50%, -4px);
  background: rgba(4, 164, 255, 0.35);
}

.scroll-arrow {
  font-size: 22px;
}

#main-content {
  background: #fff;
  padding: 60px 4vw 80px;
  margin-top: 0;
  border-top-left-radius: 0;
  border-top-right-radius: 0;
  position: relative;
  z-index: 2;
  max-width: 1200px;
  box-sizing: border-box;
  width: 100%;
  margin-left: auto;
  margin-right: auto;
}

#main-content > section,
#main-content > .column,
#video-result {
  max-width: 1000px;
  margin-left: auto;
  margin-right: auto;
}

#abstract-section {
  margin: 40px 0 60px;
  padding: 30px 6vw;
  background: rgba(28, 35, 62, 0.05);
  border-top: 1px solid rgba(31, 35, 65, 0.15);
  border-bottom: 1px solid rgba(31, 35, 65, 0.15);
  line-height: 1.75;
  color: #1f2341;
}

#abstract-section h3 {
  margin-top: 0;
  text-transform: uppercase;
  letter-spacing: 0.3em;
  font-size: 13px;
  color: #5c6fa5;
}

#abstract-section p + p {
  margin-top: 14px;
}

#pipeline-section {
  margin: -10px auto 60px;
  padding: 0 6vw;
}

#pipeline-section figure {
  margin: 0;
}

#pipeline-section img {
  width: 100%;
  max-width: 1100px;
  display: block;
  margin: 0 auto 20px;
  border-radius: 16px;
}

#pipeline-section figcaption {
  /* max-width: 1100px; */
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.7;
  color: #2b2f4c;
  text-align: left;
}

#adaptive-gabor {
  padding: 40px 6vw 0;
}

#adaptive-gabor .content {
  max-width: 1100px;
  margin: 0 auto 24px;
}

#adaptive-gabor p {
  margin-bottom: 24px;
}

.gabor-demo {
  background: #f7f8fb;
  border-radius: 24px;
  padding: 30px;
  box-shadow: inset 0 0 0 1px rgba(20, 25, 40, 0.05);
}

.gabor-panels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 20px;
}

.gabor-panel {
  background: #fff;
  border-radius: 18px;
  padding: 20px;
  box-shadow: 0 10px 30px rgba(12, 20, 40, 0.08);
}

.gabor-panel h3 {
  margin-top: 0;
  font-size: 18px;
  font-weight: 600;
  color: #05070f;
}

.gabor-panel p {
  margin-top: 12px;
  font-size: 14px;
  color: #4a4f6b;
}

#gaussian-canvas,
#gabor-canvas,
#opacity-canvas {
  width: 100%;
  height: auto;
  background: #ffffff;
  border-radius: 12px;
}

.gabor-panel.wide canvas {
  height: 200px;
}

.gabor-panels-1d canvas {
  width: 100%;
  height: auto;
}

.gabor-slider {
  margin-top: 30px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.gabor-slider input[type="range"] {
  width: 100%;
}

.gabor-info {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-weight: 600;
}

.gabor-symbol {
  font-size: 20px;
  font-weight: 700;
}

#video-result {
  margin: 40px auto 80px;
}

#video-result iframe {
  width: 100%;
  border: none;
  border-radius: 0;
  background: transparent;
  display: block;
  min-height: 800px;
  overflow: hidden;
}

@media (max-width: 768px) {
  #gabor-hero {
    padding: 40px 16px 60px;
    min-height: 100vh;
    max-height: none;
  }

  .hero-viewer {
    min-height: 320px;
  }

  #hero-three-viewer {
    height: 320px;
  }

  #main-content {
    margin-top: -20px;
    border-radius: 24px 24px 0 0;
  }

}

#video-slider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 15px;
  margin: 20px auto;
  max-width: 1000px;
  padding: 15px;
  background: rgba(0, 0, 0, 0.05);
  border-radius: 10px;
  flex-wrap: wrap;
}

.slider-btn {
  width: 50px;
  height: 50px;
  font-size: 30px;
  border: 2px solid #333;
  background: #fff;
  border-radius: 50%;
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
  padding: 0;
}

.slider-btn:hover:not(:disabled) {
  background: #333;
  color: #fff;
  transform: scale(1.1);
}

.slider-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.video-name {
  font-size: 16px;
  font-weight: bold;
  color: #333;
  min-width: 120px;
  text-align: center;
  padding: 8px 15px;
  background: rgba(255, 255, 255, 0.8);
  border-radius: 5px;
}

#video-info {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 5px;
  min-width: 200px;
}

#video-title {
  font-size: 18px;
  font-weight: bold;
  color: #333;
  text-align: center;
  padding: 8px 20px;
  background: #fff;
  border-radius: 5px;
  box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

#video-counter {
  font-size: 14px;
  color: #666;
  text-align: center;
}

#method-selector {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin: 20px auto;
  max-width: 800px;
  padding: 15px;
}

.method-btn {
  padding: 12px 24px;
  font-size: 16px;
  font-weight: bold;
  border: 2px solid #333;
  background: #fff;
  color: #333;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.method-btn:hover {
  background: #f0f0f0;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.method-btn.active {
  background: #333;
  color: #fff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

#application-selector {
  display: flex;
  justify-content: center;
  gap: 15px;
  margin: 20px auto;
  max-width: 1200px;
  padding: 15px;
  flex-wrap: wrap;
}

.app-btn {
  padding: 12px 24px;
  font-size: 16px;
  font-weight: bold;
  border: 2px solid #333;
  background: #fff;
  color: #333;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.app-btn:hover {
  background: #f0f0f0;
  transform: translateY(-2px);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.app-btn.active {
  background: #333;
  color: #fff;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.hidden {
  display: none !important;
}

#play-pause-icon-single {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 20;
}

#play-icon-single {
  width: 0;
  height: 0;
  border-left: 25px solid #fff;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  margin-left: 5px;
  display: none;
}

#pause-icon-single {
  display: none;
  width: 30px;
  height: 30px;
  position: relative;
}

#pause-icon-single::before,
#pause-icon-single::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 30px;
  background: #fff;
  border-radius: 2px;
}

#pause-icon-single::before {
  left: 0;
}

#pause-icon-single::after {
  right: 0;
}

#video-reconstruction-title {
  font-size: 24px;
  font-weight: bold;
  color: #333;
  text-align: center;
  margin: 20px auto 15px;
  max-width: 1200px;
  padding: 0 20px;
}

#application-title {
  font-size: 24px;
  font-weight: bold;
  color: #333;
  text-align: center;
  margin: 20px auto 15px;
  max-width: 1200px;
  padding: 0 20px;
}

#video-application-grid {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px;
}

.app-video-grid-rows {
  display: flex;
  flex-direction: column;
  gap: 40px;
}

.app-video-grid-3col {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.app-video-grid-single {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
}

.app-video-row {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.app-video-row-label {
  font-size: 20px;
  font-weight: bold;
  color: #333;
  text-align: center;
}

.app-video-row-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.app-video-row-container-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 20px;
}

.app-video-compare-item {
  position: relative;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  aspect-ratio: 16 / 9;
}

.app-video-compare-label {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 8px 15px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: bold;
  z-index: 10;
  pointer-events: none;
}

.app-video-compare-item video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.app-video-item {
  position: relative;
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.app-video-label {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 8px 15px;
  border-radius: 4px;
  font-size: 16px;
  font-weight: bold;
  z-index: 10;
  pointer-events: none;
}

.app-video-item video {
  width: 100%;
  height: auto;
  display: block;
}

#video-compare-container {
  display: block;
  line-height: 0;
  position: relative;
  margin: 0 auto 30px;
  width: fit-content;
  max-width: 100%;
}

#video-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: repeat(2, 1fr);
  gap: 20px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.grid-item {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 aspect ratio */
  background: #000;
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.grid-item video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.grid-label {
  position: absolute;
  top: 10px;
  left: 10px;
  background: rgba(0, 0, 0, 0.7);
  color: #fff;
  padding: 5px 12px;
  border-radius: 4px;
  font-size: 14px;
  font-weight: bold;
  z-index: 10;
  pointer-events: none;
}

#video-compare-container > video {
  width: auto;
  max-width: 100%;
  height: auto;
  display: block;
}

#video-clipper {
  width: 50%;
  position: absolute;
  top: 0;
  left: 0;
  overflow: hidden;
}

#video-clipper::after {
  content: '';
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: #fff;
  box-shadow: 2px 0 10px rgba(0, 0, 0, 0.5);
  pointer-events: none;
  z-index: 10;
  max-height: 100%;
}

#video-clipper video {
  width: 200%;
  height: 100%;
  position: absolute;
  top: 0;
  left: 0;
  object-fit: cover;
}

#play-pause-icon {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 80px;
  height: 80px;
  background: rgba(0, 0, 0, 0.6);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 20;
}

#play-icon {
  width: 0;
  height: 0;
  border-left: 25px solid #fff;
  border-top: 15px solid transparent;
  border-bottom: 15px solid transparent;
  margin-left: 5px;
  display: none;
}

#pause-icon {
  display: none;
  width: 30px;
  height: 30px;
  position: relative;
}

#pause-icon::before,
#pause-icon::after {
  content: '';
  position: absolute;
  width: 8px;
  height: 30px;
  background: #fff;
  border-radius: 2px;
}

#pause-icon::before {
  left: 0;
}

#pause-icon::after {
  right: 0;
}