/* ChatChap brand layer.
 * One theme, one accent, one radius rule: surfaces are soft (14px),
 * action chrome is squared and engraved. */


.cc {
  background: var(--cc-midnight);
  color: var(--cc-ivory);
  font-family: var(--cc-sans);
  font-feature-settings: "ss01" 1;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
}

.cc ::selection {
  background: var(--cc-copper);
  color: #140d08;
}

.cc-wrap {
  width: min(1240px, 100% - 3rem);
  margin-inline: auto;
}

@media (min-width: 1500px) {
  .cc-wrap {
    width: min(1340px, 100% - 6rem);
  }
}

.cc-eyebrow {
  margin: 0 0 1.4rem;
  color: var(--cc-copper-hi);
  font-family: var(--cc-mono);
  font-size: 0.66rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.cc h2 {
  margin: 0;
  font-family: var(--cc-sans);
  font-size: clamp(2.1rem, 4.1vw, 3.9rem);
  font-weight: 500;
  letter-spacing: -0.035em;
  line-height: 1.02;
  text-wrap: balance;
}

.cc p {
  margin: 1.35rem 0 0;
  max-width: 56ch;
  color: var(--cc-muted);
  font-size: 1.02rem;
  line-height: 1.7;
}

.cc-fine {
  font-family: var(--cc-mono);
  font-size: 0.7rem;
  letter-spacing: 0.04em;
  line-height: 1.7;
  color: rgba(159, 169, 180, 0.75);
}

/* ---------------------------------------------------------------- nav */

.cc-nav {
  position: fixed;
  z-index: 60;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  padding: 0 clamp(1.25rem, 4vw, 3rem);
  border-bottom: 1px solid transparent;
  background: linear-gradient(
    to bottom,
    rgba(11, 18, 32, 0.92),
    rgba(11, 18, 32, 0)
  );
  transition: background 240ms ease, border-color 240ms ease;
}

.cc-nav[data-scrolled="true"] {
  border-bottom-color: var(--cc-line-soft);
  background: rgba(11, 18, 32, 0.86);
  backdrop-filter: blur(14px);
}

.cc-brand {
  display: inline-flex;
  align-items: flex-start;
  gap: 0.1rem;
  color: var(--cc-ivory);
  font-family: var(--cc-serif);
  font-size: 1.45rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  line-height: 1;
  text-decoration: none;
}

.cc-brand sup {
  margin-top: 0.15rem;
  color: var(--cc-copper);
  font-family: var(--cc-sans);
  font-size: 0.5rem;
  font-weight: 500;
  letter-spacing: 0;
}

.cc-nav__links {
  display: flex;
  align-items: center;
  gap: clamp(1.1rem, 2.4vw, 2.4rem);
}

.cc-nav__link {
  position: relative;
  padding: 0.5rem 0;
  color: rgba(242, 233, 216, 0.7);
  font-family: var(--cc-mono);
  font-size: 0.66rem;
  letter-spacing: 0.14em;
  text-decoration: none;
  text-transform: uppercase;
  transition: color 180ms ease;
}

.cc-nav__link::after {
  position: absolute;
  right: 0;
  bottom: 0.15rem;
  left: 0;
  height: 1px;
  background: var(--cc-copper);
  content: "";
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cc-nav__link:hover,
.cc-nav__link:focus-visible {
  color: var(--cc-ivory);
}

.cc-nav__link:hover::after,
.cc-nav__link:focus-visible::after {
  transform: scaleX(1);
}

/* Static landing hero and persistent chat access. */
.cc-nav__cta { display: inline-flex; align-items: center; justify-content: center; min-height: 44px; padding: .55rem 1rem; border: 1px solid var(--cc-copper); border-radius: 2px; color: var(--cc-ivory); font-size: .85rem; white-space: nowrap; }
.cc-nav__cta:hover { background: rgba(201,122,74,.15); }
.cc-hero { position: relative; isolation: isolate; min-height: clamp(36rem, 78svh, 52rem); display: flex; align-items: center; background: var(--cc-midnight); }
.hero-picture { position: absolute; inset: 0; z-index: -2; }
.hero-picture img { width: 100%; height: 100%; object-fit: cover; object-position: 56% 0%; }
.cc-hero::after { content: ""; position: absolute; inset: 0; z-index: -1; background: linear-gradient(90deg, rgba(11,18,32,.76), rgba(11,18,32,.28) 48%, transparent 72%); }
.hero-inner { width: min(1340px, 100% - 6rem); margin-inline: auto; padding: 8rem 0 4rem; }
.hero-copy { max-width: 37rem; width: 49%; }
.cc .hero-kicker { margin: 0 0 1.2rem; color: var(--cc-copper-hi); font: 500 .8rem var(--cc-mono); letter-spacing: .12em; text-transform: uppercase; }
.hero-copy h1 { color: var(--cc-ivory); font: 500 clamp(3.8rem, 8vw, 8rem)/.95 var(--cc-serif); letter-spacing: -.03em; }
.cc .hero-tagline { margin: 1.3rem 0 0; max-width: 24ch; color: var(--cc-ivory); font: 400 clamp(1.35rem, 2vw, 1.95rem)/1.25 var(--cc-serif); }
.cc .hero-support { margin: 1.8rem 0; max-width: 34ch; color: #c4c7c9; font-size: 1rem; line-height: 1.65; }
@media (max-width: 1050px) { .cc-nav__links { display: none; } }
@media (max-width: 860px) {
  .cc-hero { display: block; min-height: 0; padding-top: 72px; }
  .hero-picture { position: relative; display: block; width: 100%; aspect-ratio: 16 / 9; }
  .hero-picture img { object-fit: cover; object-position: center; }
  .cc-hero::after { display: none; }
  .hero-inner { width: calc(100% - 2.5rem); padding: 1.5rem 0 3.5rem; }
  .hero-copy { width: 100%; max-width: 38rem; }
  .hero-copy h1 { font-size: clamp(3.4rem, 14vw, 5.2rem); }
}
@media (max-width: 560px) {
  .cc-nav { padding-inline: 1rem; gap: .7rem; }
  .cc-brand { font-size: 1.4rem; }
  .cc-nav__cta { padding-inline: .7rem; font-size: .78rem; }
}

/* --------------------------------------------------------- specimen */

.cc-section {
  position: relative;
  padding: clamp(5rem, 9vw, 8.5rem) 0;
}

.cc-specimen {
  border-top: 1px solid var(--cc-line-soft);
  background:
    radial-gradient(
      70% 60% at 22% 40%,
      rgba(201, 122, 74, 0.09) 0%,
      rgba(11, 18, 32, 0) 70%
    ),
    var(--cc-midnight);
}

.cc-specimen__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}

.cc-plinth {
  position: relative;
  display: flex;
  justify-content: center;
  padding: 1rem 0 2.5rem;
}

.cc-plinth::after {
  position: absolute;
  right: 12%;
  bottom: 2.1rem;
  left: 12%;
  height: 1px;
  background: linear-gradient(
    to right,
    transparent,
    rgba(201, 122, 74, 0.55),
    transparent
  );
  content: "";
}

.mascot {
  display: block;
  width: min(420px, 100%);
  filter: drop-shadow(0 30px 50px rgba(0, 0, 0, 0.45));
}

.mascot svg {
  display: block;
  width: 100%;
  height: auto;
  overflow: visible;
}

.mascot > svg {
  animation: cc-float 9s ease-in-out infinite;
}

@keyframes cc-float {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-7px);
  }
}

/* facial rig */
.mascot .cc-eye {
  --eye: 1;
  animation: cc-blink 8.4s infinite;
  transform: scaleY(var(--eye));
  transform-box: fill-box;
  transform-origin: center;
}

.mascot .cc-eye--right {
  animation-delay: 0.12s;
}

@keyframes cc-blink {
  0%,
  91%,
  100% {
    transform: scaleY(var(--eye));
  }
  93.5%,
  95.5% {
    transform: scaleY(calc(var(--eye) * 0.08));
  }
}

.mascot .cc-antenna {
  animation: cc-antenna 7s ease-in-out infinite;
  transform-box: fill-box;
  transform-origin: bottom center;
}

@keyframes cc-antenna {
  0%,
  100% {
    transform: rotate(0deg);
  }
  30% {
    transform: rotate(4deg);
  }
  60% {
    transform: rotate(-3deg);
  }
}

.mascot .cc-lamp {
  animation: cc-lamp 4.5s ease-in-out infinite;
}

@keyframes cc-lamp {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.45;
  }
}

.mascot .cc-brow,
.mascot .cc-pupil,
.mascot .cc-mouth {
  transform-box: fill-box;
  transform-origin: center;
  transition: transform 420ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.mascot[data-expression="proud"] .cc-brow--left,
.mascot[data-expression="proud"] .cc-brow--right {
  transform: translateY(-2.5px);
}

.mascot[data-expression="proud"] .cc-eye {
  --eye: 0.82;
}

.mascot[data-expression="proud"] .cc-mouth {
  transform: translateY(-1px) scale(1.08, 1.45);
}

.mascot[data-expression="thinking"] .cc-pupil {
  transform: translate(5px, -4px);
}

.mascot[data-expression="thinking"] .cc-brow--left {
  transform: translateY(-4px);
}

.mascot[data-expression="thinking"] .cc-mouth {
  transform: translateX(4px) scaleY(0.6);
}

.mascot[data-expression="confused"] .cc-brow--left {
  transform: rotate(-13deg) translateY(-3px);
}

.mascot[data-expression="confused"] .cc-brow--right {
  transform: rotate(7deg) translateY(1px);
}

.mascot[data-expression="confused"] .cc-pupil {
  transform: translate(-4px, 1px);
}

.mascot[data-expression="confused"] .cc-mouth {
  transform: rotate(-5deg) scaleY(0.55);
}

.mascot[data-expression="delighted"] .cc-eye {
  --eye: 0.58;
}

.mascot[data-expression="delighted"] .cc-mouth {
  transform: translateY(-2px) scale(1.18, 1.9);
}

.mascot[data-expression="delighted"] .cc-brow--left,
.mascot[data-expression="delighted"] .cc-brow--right {
  transform: translateY(-4px);
}

.mascot[data-expression="concerned"] .cc-brow--left {
  transform: rotate(11deg) translateY(2px);
}

.mascot[data-expression="concerned"] .cc-brow--right {
  transform: rotate(-9deg) translateY(2px);
}

.mascot[data-expression="concerned"] .cc-eye {
  --eye: 0.86;
}

.mascot[data-expression="concerned"] .cc-mouth {
  transform: scaleY(0.25) translateY(2px);
}

.mascot--still,
.mascot--still * {
  animation: none !important;
}

.cc-specimen__caption {
  margin: 0.6rem 0 0;
  color: rgba(159, 169, 180, 0.7);
  font-family: var(--cc-mono);
  font-size: 0.64rem;
  letter-spacing: 0.14em;
  text-align: center;
  text-transform: uppercase;
}

.cc-traits {
  margin: 2.6rem 0 0;
  padding: 0;
  border-top: 1px solid var(--cc-line);
  list-style: none;
}

.cc-trait {
  display: block;
  width: 100%;
  padding: 1.15rem 0 1.2rem;
  border: 0;
  border-bottom: 1px solid var(--cc-line);
  background: transparent;
  color: inherit;
  text-align: left;
  cursor: pointer;
}

.cc-trait__name {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--cc-ivory);
  font-size: 1.02rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.cc-trait__name::before {
  display: inline-block;
  width: 0.9rem;
  height: 1px;
  background: var(--cc-copper);
  content: "";
  transition: width 240ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cc-trait:hover .cc-trait__name::before,
.cc-trait:focus-visible .cc-trait__name::before,
.cc-trait[aria-pressed="true"] .cc-trait__name::before {
  width: 1.9rem;
}

.cc-trait__note {
  display: block;
  margin: 0.35rem 0 0 1.65rem;
  color: rgba(159, 169, 180, 0.9);
  font-size: 0.9rem;
  line-height: 1.55;
}

.cc-trait:focus-visible {
  outline: 2px solid var(--cc-copper);
  outline-offset: 4px;
}

/* ------------------------------------------------------------ talk */

.cc-talk {
  border-top: 1px solid var(--cc-line-soft);
  background: var(--cc-deep);
}

.cc-talk__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.8fr);
  gap: clamp(1.5rem, 5vw, 5rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
}

.cc-talk__head p {
  margin: 0;
}

.cc-talk__rail {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 2vw, 1.6rem);
  align-items: start;
}

.cc-window {
  overflow: hidden;
  border: 1px solid var(--cc-line);
  border-radius: var(--cc-soft);
  background: linear-gradient(180deg, #121f31 0%, #0d1725 100%);
  box-shadow: 0 24px 60px rgba(2, 6, 12, 0.45);
}

.cc-window:nth-child(2) {
  margin-top: clamp(2rem, 5vw, 4rem);
}

.cc-window:nth-child(3) {
  margin-top: clamp(1rem, 2.5vw, 1.8rem);
}

.cc-window__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1rem;
  border-bottom: 1px solid var(--cc-line-soft);
  background: rgba(255, 255, 255, 0.02);
}

.cc-window__name {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  color: var(--cc-ivory);
  font-family: var(--cc-serif);
  font-size: 1rem;
  letter-spacing: 0.01em;
}

.cc-window__avatar {
  display: block;
  width: 24px;
  height: 24px;
  overflow: hidden;
  border: 1px solid rgba(201, 122, 74, 0.4);
  border-radius: 50%;
  background: var(--cc-midnight);
}

.cc-window__avatar .mascot {
  width: 44px;
  margin: -3px 0 0 -10px;
  filter: none;
}

.cc-window__meta {
  color: rgba(159, 169, 180, 0.75);
  font-family: var(--cc-mono);
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.cc-window__body {
  display: flex;
  flex-direction: column;
  gap: 1.1rem;
  padding: 1.4rem 1rem 1.6rem;
}

.cc-msg {
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.55;
}

.cc-msg span {
  display: block;
  margin-bottom: 0.4rem;
  color: rgba(159, 169, 180, 0.65);
  font-family: var(--cc-mono);
  font-size: 0.56rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.cc-msg p {
  margin: 0;
  max-width: none;
  font-size: inherit;
  line-height: inherit;
}

.cc-msg--human {
  padding-left: 1.1rem;
  border-left: 1px solid rgba(242, 233, 216, 0.18);
  color: rgba(242, 233, 216, 0.82);
}

.cc-msg--bot {
  padding-left: 1.1rem;
  border-left: 1px solid rgba(201, 122, 74, 0.6);
  color: var(--cc-ivory);
}

.cc-msg--bot span {
  color: var(--cc-copper-hi);
}

.cc-talk__fine {
  margin-top: 2.2rem;
}

/* ------------------------------------------------------------- tech */

.cc-tech {
  border-top: 1px solid var(--cc-line-soft);
  background: var(--cc-midnight);
}

.cc-tech__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}

.cc-tech__lede {
  position: sticky;
  top: 7rem;
}

.cc-specs {
  margin: 0;
  border-top: 1px solid var(--cc-line);
}

.cc-spec {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 1.5rem;
  padding: 1.35rem 0;
  border-bottom: 1px solid var(--cc-line);
}

.cc-spec dt {
  color: var(--cc-ivory);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.01em;
}

.cc-spec dd {
  margin: 0;
  color: rgba(159, 169, 180, 0.92);
  font-size: 0.92rem;
  line-height: 1.6;
}

.cc-readout {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 2.2rem;
  margin-top: clamp(3rem, 6vw, 5rem);
  padding: 1.1rem 0;
  border-top: 1px solid var(--cc-line);
  border-bottom: 1px solid var(--cc-line);
  color: rgba(159, 169, 180, 0.8);
  font-family: var(--cc-mono);
  font-size: 0.63rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.cc-readout span {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.cc-readout span::before {
  display: inline-block;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--cc-copper);
  content: "";
}

/* ----------------------------------------------------------- award */

.cc-award {
  border-top: 1px solid var(--cc-line-soft);
  background:
    radial-gradient(
      60% 55% at 68% 45%,
      rgba(201, 122, 74, 0.13) 0%,
      rgba(11, 18, 32, 0) 72%
    ),
    var(--cc-deep);
}

.cc-award__grid {
  display: grid;
  grid-template-columns: minmax(0, 0.88fr) minmax(0, 1.12fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: center;
}

.cc-award__note {
  margin-top: 2.2rem;
  padding-top: 1.4rem;
  border-top: 1px solid var(--cc-line);
}

.cc-cert {
  position: relative;
  width: min(560px, 100%);
  margin: 0 auto;
  padding: clamp(1.7rem, 3vw, 2.6rem);
  border-radius: 3px;
  background:
    repeating-linear-gradient(
      0deg,
      rgba(21, 32, 47, 0.022) 0px,
      rgba(21, 32, 47, 0.022) 1px,
      transparent 1px,
      transparent 4px
    ),
    linear-gradient(160deg, #f7efdf 0%, #ece0c9 100%);
  box-shadow:
    0 40px 90px rgba(2, 6, 12, 0.55),
    0 2px 0 rgba(255, 255, 255, 0.5) inset;
  color: #17202e;
  transform: rotate(-1.1deg);
  transition: transform 600ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cc-cert:hover {
  transform: rotate(-0.2deg) translateY(-4px);
}

.cc-cert__inner {
  padding: clamp(1.5rem, 3vw, 2.4rem);
  border: 1px solid rgba(23, 32, 46, 0.55);
  outline: 1px solid rgba(23, 32, 46, 0.22);
  outline-offset: 5px;
  text-align: center;
}

.cc-cert__org {
  margin: 0;
  font-family: var(--cc-mono);
  font-size: 0.58rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

.cc-cert__rule {
  width: 2.5rem;
  height: 1px;
  margin: 1.1rem auto;
  background: rgba(23, 32, 46, 0.5);
}

.cc-cert__kicker {
  margin: 0;
  font-family: var(--cc-mono);
  font-size: 0.6rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
}

.cc-cert__title {
  margin: 0.9rem 0 0;
  font-family: var(--cc-serif);
  font-size: clamp(2.4rem, 4vw, 3.2rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  line-height: 1;
}

.cc-cert__body {
  margin: 1.2rem auto 0;
  max-width: 30ch;
  color: rgba(23, 32, 46, 0.82);
  font-family: var(--cc-sans);
  font-size: 0.82rem;
  line-height: 1.65;
}

.cc-cert__seal {
  position: absolute;
  right: clamp(1.1rem, 4vw, 2.2rem);
  bottom: clamp(3.2rem, 8vw, 4.6rem);
  display: grid;
  place-items: center;
  width: 92px;
  height: 92px;
  border: 1px solid rgba(201, 122, 74, 0.85);
  border-radius: 50%;
  color: #8f4d29;
  transform: rotate(-9deg);
}

.cc-cert__seal::before {
  position: absolute;
  inset: 6px;
  border: 1px solid rgba(201, 122, 74, 0.5);
  border-radius: 50%;
  content: "";
}

.cc-cert__seal strong {
  display: block;
  font-family: var(--cc-serif);
  font-size: 1.5rem;
  font-weight: 600;
  line-height: 1;
}

.cc-cert__seal em {
  display: block;
  margin-top: 0.25rem;
  font-family: var(--cc-mono);
  font-size: 0.44rem;
  font-style: normal;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.cc-cert__sign {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2.2rem;
  padding-top: 0.8rem;
  border-top: 1px solid rgba(23, 32, 46, 0.35);
  text-align: left;
}

.cc-cert__signature {
  font-family: var(--cc-serif);
  font-size: 1.5rem;
  font-style: italic;
  line-height: 1;
}

.cc-cert__role {
  margin-top: 0.35rem;
  font-family: var(--cc-mono);
  font-size: 0.5rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  opacity: 0.7;
}

.cc-cert__serial {
  font-family: var(--cc-mono);
  font-size: 0.5rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  opacity: 0.65;
  white-space: nowrap;
}

.cc-cert__small {
  margin: 1.4rem 0 0;
  color: rgba(23, 32, 46, 0.62);
  font-family: var(--cc-mono);
  font-size: 0.52rem;
  letter-spacing: 0.02em;
  line-height: 1.7;
}

/* ----------------------------------------------------------- final */

.cc-final {
  position: relative;
  border-top: 1px solid var(--cc-line-soft);
  background:
    radial-gradient(
      50% 70% at 50% 100%,
      rgba(201, 122, 74, 0.16) 0%,
      rgba(11, 18, 32, 0) 70%
    ),
    var(--cc-midnight);
  text-align: center;
}

.cc-final .cc-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.cc-final h2 {
  max-width: 16ch;
}

.cc-final p {
  max-width: 44ch;
  text-align: center;
}

.cc-final__cta {
  margin-top: 2.6rem;
}

/* --------------------------------------------------------- buttons */

.cc-btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  min-height: 52px;
  padding: 0 1.6rem;
  border: 0;
  border-radius: 2px;
  font-family: var(--cc-sans);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  cursor: pointer;
  transition:
    transform 180ms cubic-bezier(0.2, 0.8, 0.2, 1),
    background 180ms ease,
    color 180ms ease;
}

.cc-btn:active {
  transform: translateY(1px);
}

.cc-btn:focus-visible {
  outline: 2px solid var(--cc-copper-hi);
  outline-offset: 4px;
}

.cc-btn__arrow {
  display: inline-block;
  font-family: var(--cc-mono);
  font-size: 0.8rem;
  transition: transform 220ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cc-btn--copper {
  background: var(--cc-copper);
  box-shadow: inset 0 0 0 1px rgba(255, 244, 230, 0.28);
  color: #170e07;
}

.cc-btn--copper:hover {
  background: var(--cc-copper-hi);
  transform: translateY(-1px);
}

.cc-btn--copper:hover .cc-btn__arrow {
  transform: translateX(4px);
}

.cc-btn--ivory {
  background: var(--cc-ivory);
  color: #0b1220;
}

.cc-btn--ivory::before,
.cc-btn--ivory::after {
  position: absolute;
  top: 50%;
  width: 9px;
  height: 20px;
  border: 1px solid var(--cc-copper);
  content: "";
  transform: translateY(-50%);
  transition: transform 260ms cubic-bezier(0.2, 0.8, 0.2, 1);
}

.cc-btn--ivory::before {
  left: -13px;
  border-right: 0;
}

.cc-btn--ivory::after {
  right: -13px;
  border-left: 0;
}

.cc-btn--ivory:hover {
  transform: translateY(-1px);
}

.cc-btn--ivory:hover::before {
  transform: translate(-4px, -50%);
}

.cc-btn--ivory:hover::after {
  transform: translate(4px, -50%);
}

/* ----------------------------------------------------------- footer */

.cc-footer {
  border-top: 1px solid var(--cc-line);
  padding: clamp(3rem, 6vw, 4.5rem) 0 2.2rem;
  background: var(--cc-midnight);
}

.cc-footer__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(3, minmax(0, 0.6fr));
  gap: 2.5rem;
}

.cc-footer__brand p {
  margin: 0.9rem 0 0;
  font-family: var(--cc-serif);
  font-size: 1.02rem;
  color: rgba(242, 233, 216, 0.72);
}

.cc-footer__company {
  margin-top: 1.6rem !important;
  color: rgba(159, 169, 180, 0.7) !important;
  font-family: var(--cc-mono);
  font-size: 0.62rem !important;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.cc-footer__heading {
  margin: 0 0 1rem;
  color: rgba(159, 169, 180, 0.65);
  font-family: var(--cc-mono);
  font-size: 0.58rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.cc-footer__list {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.cc-footer__item {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  color: rgba(242, 233, 216, 0.78);
  font-size: 0.86rem;
  text-decoration: none;
}

.cc-footer__item em {
  color: rgba(159, 169, 180, 0.55);
  font-family: var(--cc-mono);
  font-size: 0.52rem;
  font-style: normal;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

a.cc-footer__item:hover {
  color: var(--cc-copper-hi);
}

.cc-footer__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 1.4rem;
  border-top: 1px solid var(--cc-line-soft);
}

.cc-footer__micro {
  max-width: 46ch;
}

/* -------------------------------------------------------- responsive */

@media (max-width: 1024px) {
  .cc-talk__rail {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .cc-window:nth-child(3) {
    grid-column: 1 / -1;
    margin-top: 0;
    max-width: 560px;
  }
}

@media (max-width: 860px) {
  .cc-specimen__grid,
  .cc-tech__grid,
  .cc-award__grid,
  .cc-talk__head,
  .cc-footer__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cc-talk__head {
    align-items: start;
    gap: 1rem;
  }

  .cc-talk__rail {
    grid-template-columns: minmax(0, 1fr);
  }

  .cc-window:nth-child(2),
  .cc-window:nth-child(3) {
    margin-top: 0;
    max-width: none;
  }

  .cc-tech__lede {
    position: static;
  }

  .cc-spec {
    grid-template-columns: minmax(0, 1fr);
    gap: 0.4rem;
  }

  .cc-footer__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 2rem;
  }

  .cc-footer__brand {
    grid-column: 1 / -1;
  }

  .cc-cert {
    transform: none;
  }
}

@media (max-width: 560px) {
  .cc-wrap {
    width: calc(100% - 2.25rem);
  }

  .cc-specimen__grid {
    gap: 2rem;
  }

  .mascot {
    width: min(300px, 82%);
  }

  .cc h2 {
    font-size: clamp(1.95rem, 8.6vw, 2.6rem);
  }

  .cc-btn {
    width: 100%;
    justify-content: center;
  }

  .cc-footer__grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .cc-cert__seal {
    width: 76px;
    height: 76px;
  }

  .cc-cert__seal strong {
    font-size: 1.2rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .cc *,
  .cc *::before,
  .cc *::after,
  .mascot * {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .mascot > svg {
    transform: none;
  }
}

/* ==========================================================================
   Static shell: document base, the film stage, the dialog, image fallbacks.
   Everything above this line is the shared ChatChap design system.
   ========================================================================== */

/* --- document base ------------------------------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: #0b1220;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--cc-midnight);
}

h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  padding: 0;
  border: 0;
  color: inherit;
  background: none;
  font: inherit;
  cursor: pointer;
}

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

section[id],
footer[id] {
  scroll-margin-top: 84px;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
}

/* --- mascot: inline SVG when JS can fetch it, PNG when it cannot ---------- */

.mascot img {
  display: block;
  width: 100%;
  height: auto;
}

.mascot__fallback {
  opacity: 0.98;
}

.cc-window__avatar img {
  width: 100%;
  height: 100%;
  max-width: none;
  margin: 0;
  object-fit: cover;
}

.cc-dialog__avatar img {
  width: 100%;
  height: auto;
}

/* Readable supporting copy on small screens and keyboard navigation. */
.cc .cc-fine { font-size: .8rem; color: var(--cc-muted); }
.cc-window__meta { font-size: .75rem; }
.cc-window__name { font-size: .85rem; }
.cc-cert__org, .cc-cert__kicker { font-size: .75rem; letter-spacing: .12em; }
.cc-cert__role, .cc-cert__serial { font-size: .7rem; letter-spacing: .08em; }
.cc .cc-cert__small { font-size: .75rem; color: #565850; }
.cc-footer__heading { font-size: .75rem; }
.cc .cc-footer__company { font-size: .75rem !important; }
.cc-readout { font-size: .75rem; }
a:focus-visible, button:focus-visible { outline: 2px solid var(--cc-copper-hi); outline-offset: 4px; }
@media (max-width: 560px) {
  .cc-section { padding-block: 3.5rem; }
  .cc-cert__sign { flex-wrap: wrap; }
  .cc .cc-cert__org, .cc .cc-cert__kicker { letter-spacing: .06em; }
}