:root {
  --text: #232323;
  --muted: #666666;
  --light: #f7f8f8;
  --line: #e3e7e6;
  --accent: #0f7666;
  --accent-dark: #07564b;
  --section-bg: #f3faf7;
  --section-line: rgba(15, 118, 102, 0.18);
  --shadow: 0 18px 46px rgba(10, 38, 34, 0.08);
  --sans: "Google Sans", "Noto Sans", Arial, sans-serif;
  --serif: "Castoro", Georgia, "Times New Roman", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  background: #ffffff;
  font-family: var(--sans);
  line-height: 1.65;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--accent-dark);
}

img {
  display: block;
  max-width: 100%;
}

.container {
  width: min(1000px, calc(100% - 40px));
  margin: 0 auto;
}

.container.narrow {
  width: min(850px, calc(100% - 40px));
}

.center {
  text-align: center;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: 56px 0 26px;
  background: #ffffff;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero-logo {
  width: auto;
  max-width: min(480px, 78vw);
  max-height: 180px;
  margin: 0 auto 16px;
  animation: heroLift 720ms ease both;
}

h1,
h2 {
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: 0;
}

h1 {
  margin: 0;
  font-size: 44px;
  animation: heroLift 780ms ease 90ms both;
}

h2 {
  margin: 0 0 22px;
  text-align: center;
  font-size: 34px;
}

.subtitle {
  margin: 8px auto 20px;
  color: #333333;
  font-size: 24px;
  line-height: 1.35;
  animation: heroLift 820ms ease 150ms both;
}

.g-mark {
  text-decoration-line: underline;
  text-decoration-color: var(--accent);
  text-decoration-thickness: 0.1em;
  text-underline-offset: 0.14em;
}

.authors {
  max-width: 920px;
  margin: 0 auto;
  color: #333333;
  font-size: 18px;
  line-height: 1.6;
  animation: heroLift 860ms ease 220ms both;
}

.affiliations {
  margin: 10px 0 0;
  color: #555555;
  font-size: 17px;
}

.note {
  margin: 4px 0 0;
  color: #777777;
  font-size: 14px;
}

.venue {
  margin: 9px 0 0;
  color: #777777;
  font-size: 15px;
  letter-spacing: 0.06em;
}

.links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-top: 26px;
  animation: heroLift 900ms ease 300ms both;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 42px;
  padding: 0 18px 0 13px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  background:
    linear-gradient(180deg, rgba(48, 48, 48, 0.98), rgba(31, 31, 31, 0.98));
  color: #ffffff;
  font-size: 15px;
  font-weight: 700;
  line-height: 1;
  box-shadow:
    0 10px 22px rgba(0, 0, 0, 0.12),
    inset 0 1px 0 rgba(255, 255, 255, 0.12);
  transition:
    background 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.button:hover {
  border-color: rgba(15, 118, 102, 0.32);
  background:
    linear-gradient(180deg, rgba(15, 118, 102, 0.98), rgba(7, 86, 75, 0.98));
  color: #ffffff;
  box-shadow:
    0 13px 26px rgba(7, 86, 75, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.14);
  transform: translateY(-2px);
}

.button-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 24px;
  padding: 0 7px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.13);
  color: rgba(255, 255, 255, 0.92);
  font-size: 11px;
  font-weight: 800;
  line-height: 1;
}

.button-icon-hf {
  font-size: 17px;
}

.section {
  position: relative;
  padding: 54px 0;
  background: var(--section-bg);
}

.section img:not(.hero-logo, .plain-image) {
  padding: 8px;
  border: 1px solid rgba(15, 118, 102, 0.16);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.86);
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    filter 180ms ease,
    transform 180ms ease;
}

.section img:not(.hero-logo, .plain-image):hover {
  border-color: rgba(15, 118, 102, 0.28);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.92);
  filter: saturate(1.03);
  transform: translateY(-2px);
}

.section.compact {
  padding-top: 18px;
}

.abstract-section {
  border-top: 1px solid var(--section-line);
  padding-bottom: 18px;
}

.teaser {
  padding-top: 8px;
}

.teaser img {
  width: min(640px, 96%);
  margin: 0 auto;
}

.content {
  color: #222222;
  font-size: 17px;
  text-align: justify;
}

.content p {
  margin: 0 0 16px;
}

.content ol {
  margin: 0;
  padding-left: 22px;
}

.content li {
  margin-bottom: 12px;
}

.caption {
  max-width: 820px;
  margin: 14px auto 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.55;
  text-align: center;
}

.highlights {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.highlight-card {
  min-height: 150px;
  padding: 25px 20px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.78);
  box-shadow: 0 14px 34px rgba(10, 38, 34, 0.045);
  text-align: center;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.highlight-card:hover {
  border-color: rgba(15, 118, 102, 0.24);
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.highlight-number {
  margin-bottom: 10px;
  color: var(--accent-dark);
  font-family: var(--serif);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.05;
}

.highlight-text {
  color: #4a4a4a;
  font-size: 15px;
  line-height: 1.45;
}

.figure-block {
  margin: 0 auto 30px;
  text-align: center;
}

.figure-block:last-child {
  margin-bottom: 0;
}

.figure-block img {
  width: min(820px, 100%);
  margin: 0 auto;
}

.method-figure img {
  width: min(980px, 100%);
}

.method-steps {
  margin-top: 34px;
}

.method-steps > p {
  margin-bottom: 18px;
  font-family: var(--serif);
  font-size: 20px;
  font-weight: 700;
  text-align: center;
}

.method-steps ol {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  margin: 0;
  padding: 0;
  counter-reset: method-step;
}

.method-steps li {
  position: relative;
  min-height: 132px;
  margin: 0;
  padding: 20px 20px 20px 64px;
  border: 1px solid #dfe7e4;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.8);
  color: #4d5552;
  font-size: 15px;
  line-height: 1.55;
  list-style: none;
  text-align: left;
  counter-increment: method-step;
}

.method-steps li::before {
  position: absolute;
  top: 20px;
  left: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--accent);
  color: #ffffff;
  content: counter(method-step);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
}

.method-steps strong {
  display: block;
  margin-bottom: 5px;
  color: #202725;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.4;
}

.results-container {
  width: min(900px, calc(100% - 40px));
}

.main-result-figure {
  overflow-x: auto;
  margin: 0 auto;
}

.main-result-figure img {
  width: min(820px, 100%);
  margin: 0 auto;
}

.analysis-carousel {
  position: relative;
  width: min(940px, 100%);
  margin: 0 auto;
  padding: 0 58px;
}

.carousel-viewport {
  min-height: 430px;
  overflow: hidden;
}

.carousel-track {
  display: flex;
  transform: translateX(0);
  transition: transform 420ms cubic-bezier(0.22, 1, 0.36, 1);
  will-change: transform;
}

.carousel-slide {
  flex: 0 0 100%;
  margin: 0;
  opacity: 0.35;
  text-align: center;
  transform: scale(0.985);
  transition:
    opacity 260ms ease,
    transform 420ms cubic-bezier(0.22, 1, 0.36, 1);
}

.carousel-slide.is-active {
  opacity: 1;
  transform: scale(1);
}

.carousel-slide img {
  width: min(820px, 100%);
  margin: 0 auto;
}

.carousel-control {
  position: absolute;
  top: 43%;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: #ffffff;
  color: var(--accent-dark);
  cursor: pointer;
  font-size: 34px;
  line-height: 1;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.08);
  transition:
    background 180ms ease,
    border-color 180ms ease,
    color 180ms ease,
    transform 180ms ease;
}

.carousel-control:hover,
.carousel-control:focus-visible {
  border-color: var(--accent);
  color: #ffffff;
  background: var(--accent-dark);
  outline: none;
  transform: translateY(-1px);
}

.carousel-control-prev {
  left: 0;
}

.carousel-control-next {
  right: 0;
}

.carousel-dots {
  display: flex;
  justify-content: center;
  gap: 9px;
  margin-top: 18px;
}

.carousel-dot {
  width: 10px;
  height: 10px;
  padding: 0;
  border: 1px solid var(--accent);
  border-radius: 50%;
  background: #ffffff;
  cursor: pointer;
  transition:
    background 180ms ease,
    transform 180ms ease;
}

.carousel-dot.is-active {
  background: var(--accent);
  transform: scale(1.12);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .carousel-track,
  .carousel-slide {
    transition: none;
  }

  .reveal-ready .reveal-item {
    opacity: 1;
    transform: none;
  }
}

pre {
  overflow-x: auto;
  margin: 0;
  padding: 20px;
  border-radius: 8px;
  background: #f5f5f5;
  color: #222222;
  font-size: 14px;
  line-height: 1.55;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.85);
}

code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

.footer {
  padding: 35px 0;
  background:
    linear-gradient(180deg, rgba(247, 248, 248, 0.96), rgba(239, 245, 244, 0.96));
  border-top: 1px solid var(--line);
}

.reveal-ready .reveal-item {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 620ms ease,
    transform 620ms cubic-bezier(0.22, 1, 0.36, 1);
}

.reveal-ready .reveal-item.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-ready .reveal-item.is-visible img:not(.hero-logo, .plain-image) {
  animation: imageSettle 640ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

@keyframes heroLift {
  from {
    opacity: 0;
    transform: translateY(14px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes imageSettle {
  from {
    opacity: 0.82;
    filter: saturate(0.94);
    transform: translateY(8px) scale(0.992);
  }

  to {
    opacity: 1;
    filter: saturate(1);
    transform: translateY(0) scale(1);
  }
}

.footer p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

@media (max-width: 760px) {
  .container,
  .container.narrow {
    width: min(100% - 28px, 1000px);
  }

  .hero {
    padding-top: 34px;
  }

  .hero-logo {
    max-width: min(330px, 86vw);
    max-height: 145px;
  }

  h1 {
    font-size: 36px;
  }

  h2 {
    font-size: 29px;
  }

  .subtitle {
    font-size: 20px;
  }

  .authors,
  .affiliations {
    font-size: 15px;
  }

  .section {
    padding: 42px 0;
  }

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

  .teaser img,
  .figure-block img,
  .method-figure img {
    width: 100%;
  }

  .method-steps {
    margin-top: 28px;
  }

  .method-steps ol {
    grid-template-columns: 1fr;
  }

  .method-steps li {
    min-height: auto;
  }

  .analysis-carousel {
    padding: 0 42px;
  }

  .carousel-viewport {
    min-height: 0;
  }

  .carousel-control {
    top: 36%;
    width: 34px;
    height: 34px;
    font-size: 28px;
  }

  .highlight-card {
    min-height: auto;
  }

  .content {
    font-size: 16px;
    text-align: left;
  }
}