/* =========================================================
   CDL — Components: buttons, nav, cards, channels, FAQ,
   loader, cursor, toggle, marquee, scroll progress
   ========================================================= */

/* ---------------- Buttons ---------------- */
.btn {
  --btn-py: 0.82em;
  --btn-px: 1.55em;
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55em;
  padding: var(--btn-py) var(--btn-px);
  border: 1px solid transparent;
  border-radius: var(--ch-r-pill);
  font-family: var(--ch-font-body);
  font-size: var(--ch-text-sm);
  font-weight: 700;
  line-height: 1.2;
  cursor: pointer;
  white-space: nowrap;
  overflow: hidden;
  isolation: isolate;
  transform: translate3d(var(--mx, 0px), var(--my, 0px), 0);
  transition: transform var(--ch-dur) var(--ch-ease-spring),
    box-shadow var(--ch-dur) var(--ch-ease-out),
    background-color var(--ch-dur) var(--ch-ease-out),
    border-color var(--ch-dur) var(--ch-ease-out),
    color var(--ch-dur) var(--ch-ease-out);
}
.btn--sm { --btn-py: 0.6em; --btn-px: 1.1em; font-size: var(--ch-text-xs); }
.btn--lg { --btn-py: 0.95em; --btn-px: 1.9em; font-size: var(--ch-text-md); }

.btn__icon { width: 1.15em; height: 1.15em; flex: none; }

/* sheen */
.btn::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(120deg, transparent 30%, rgba(255, 255, 255, 0.35) 50%, transparent 70%);
  transform: translateX(-120%);
  transition: transform var(--ch-dur-xslow) var(--ch-ease-out);
}
.btn:hover::after { transform: translateX(120%); }

.btn--primary {
  color: #fff;
  background: linear-gradient(180deg, var(--ch-blue) 0%, var(--ch-blue-strong) 100%);
  box-shadow: 0 14px 30px -12px color-mix(in srgb, var(--ch-blue) 70%, transparent);
}
.btn--primary:hover {
  background: linear-gradient(180deg, var(--ch-blue-strong) 0%, var(--ch-blue-deep) 100%);
  box-shadow: 0 20px 40px -14px color-mix(in srgb, var(--ch-blue) 75%, transparent);
}

.btn--coral {
  color: #fff;
  background: linear-gradient(180deg, var(--ch-coral) 0%, var(--ch-coral-strong) 100%);
  box-shadow: 0 14px 30px -12px color-mix(in srgb, var(--ch-coral) 70%, transparent);
}
.btn--coral:hover { box-shadow: 0 20px 40px -14px color-mix(in srgb, var(--ch-coral) 75%, transparent); }

.btn--outline {
  color: var(--ch-ink);
  background: color-mix(in srgb, var(--ch-surface) 70%, transparent);
  border-color: var(--ch-line-strong);
  backdrop-filter: blur(6px);
}
.btn--outline:hover { border-color: var(--ch-accent); color: var(--ch-accent); }

.btn--ghost {
  color: var(--ch-ink-soft);
  background: transparent;
}
.btn--ghost:hover { color: var(--ch-accent); background: color-mix(in srgb, var(--ch-blue) 7%, transparent); }

.btn:active { transform: translate3d(var(--mx, 0px), var(--my, 0px), 0) scale(0.97); }

/* ---------------- Icon button ---------------- */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border: 1px solid var(--ch-line-soft);
  border-radius: var(--ch-r-sm);
  background: var(--ch-surface);
  color: var(--ch-ink-soft);
  cursor: pointer;
  transition: transform var(--ch-dur) var(--ch-ease-spring),
    color var(--ch-dur) var(--ch-ease-out),
    border-color var(--ch-dur) var(--ch-ease-out),
    background-color var(--ch-dur) var(--ch-ease-out);
}
.icon-btn:hover { color: var(--ch-accent); border-color: var(--ch-accent); transform: translateY(-2px); }
.icon-btn svg { width: 20px; height: 20px; }

/* ---------------- Theme toggle ---------------- */
.theme-toggle { position: relative; overflow: hidden; }
.theme-toggle .theme-toggle__icon { position: absolute; inset: 0; margin: auto; transition: transform var(--ch-dur-slow) var(--ch-ease-spring), opacity var(--ch-dur) var(--ch-ease-out); }
:root[data-theme="dark"] .theme-toggle__sun { transform: rotate(90deg) scale(0.4); opacity: 0; }
:root[data-theme="dark"] .theme-toggle__moon { transform: rotate(0) scale(1); opacity: 1; }
:root:not([data-theme="dark"]) .theme-toggle__moon { transform: rotate(-90deg) scale(0.4); opacity: 0; }

/* ---------------- Header / Nav ---------------- */
.site-header {
  position: sticky;
  inset-block-start: 0;
  z-index: var(--ch-z-header);
  background: var(--ch-surface-glass);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  border-block-end: 1px solid transparent;
  transition: border-color var(--ch-dur) var(--ch-ease-out),
    background-color var(--ch-dur) var(--ch-ease-out),
    box-shadow var(--ch-dur) var(--ch-ease-out);
}
.site-header.is-scrolled {
  border-block-end-color: var(--ch-line-soft);
  box-shadow: 0 10px 34px -24px rgba(11, 18, 32, 0.5);
}
.site-header__inner { display: grid; grid-template-columns: 1fr auto 1fr; align-items: center; gap: var(--ch-space-4); min-height: 74px; }

.brand { justify-self: start; display: inline-flex; align-items: center; gap: 0.55rem; }
.brand__mark { height: 40px; width: auto; }
/* Official wordmark artwork (title only) — replaces the previous plain-text word */
.brand__word { height: 30px; width: auto; }

.nav { justify-self: center; }
.nav__list { display: flex; align-items: center; gap: 2px; }
.nav__link {
  position: relative;
  display: inline-block;
  padding: 0.5em 0.8em;
  border-radius: var(--ch-r-sm);
  font-size: var(--ch-text-sm);
  font-weight: 500;
  color: var(--ch-ink-soft);
  transition: color var(--ch-dur) var(--ch-ease-out), background-color var(--ch-dur) var(--ch-ease-out);
}
.nav__link::after {
  content: "";
  position: absolute;
  inset-block-end: 4px;
  inset-inline: 0.8em;
  height: 2px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--ch-blue), var(--ch-coral));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--ch-dur) var(--ch-ease-out);
}
.nav__link:hover { color: var(--ch-accent); }
.nav__link:hover::after { transform: scaleX(1); }

.nav__toggle { display: none; }
.nav__toggle-bars,
.nav__toggle-bars::before,
.nav__toggle-bars::after {
  display: block; width: 20px; height: 2px;
  margin-inline: auto; border-radius: 2px;
  background: var(--ch-ink);
  transition: transform var(--ch-dur) var(--ch-ease-out), opacity var(--ch-dur) var(--ch-ease-out);
}
.nav__toggle-bars { position: relative; }
.nav__toggle-bars::before, .nav__toggle-bars::after { content: ""; position: absolute; inset-inline-start: 0; }
.nav__toggle-bars::before { top: -6px; }
.nav__toggle-bars::after { top: 6px; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bars { background: transparent; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bars::before { top: 0; transform: rotate(45deg); }
.nav__toggle[aria-expanded="true"] .nav__toggle-bars::after { top: 0; transform: rotate(-45deg); }

.header__actions { justify-self: end; display: flex; align-items: center; gap: 0.6rem; }

/* ---------------- Cards ---------------- */
.card {
  position: relative;
  background: var(--ch-surface);
  border: 1px solid var(--ch-line-soft);
  border-radius: var(--ch-r-lg);
  box-shadow: var(--ch-shadow-sm);
}
.card--glass {
  background: var(--ch-surface-glass);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
.card--hover { transition: transform var(--ch-dur) var(--ch-ease-spring), box-shadow var(--ch-dur) var(--ch-ease-out), border-color var(--ch-dur) var(--ch-ease-out); }
.card--hover:hover { transform: translateY(-5px); box-shadow: var(--ch-shadow-md); border-color: var(--ch-line); }

/* ---------------- Channel card ---------------- */
.channel {
  position: relative;
  display: flex;
  align-items: center;
  gap: var(--ch-space-4);
  padding: var(--ch-space-5);
  border-radius: var(--ch-r-lg);
  background: var(--ch-surface);
  border: 1px solid var(--ch-line-soft);
  box-shadow: var(--ch-shadow-sm);
  overflow: hidden;
  height: 100%;
  transform: translate3d(var(--mx, 0), var(--my, 0), 0);
  transition: translate var(--ch-dur) var(--ch-ease-spring),
    transform var(--ch-dur) var(--ch-ease-spring),
    box-shadow var(--ch-dur) var(--ch-ease-out),
    border-color var(--ch-dur) var(--ch-ease-out);
}
.channel::before {
  content: "";
  position: absolute;
  inset-block-start: 0; inset-inline: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--ch-accent), var(--ch-coral));
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--ch-dur) var(--ch-ease-out);
}
.channel:hover { translate: 0 -5px; box-shadow: var(--ch-shadow-lg); border-color: color-mix(in srgb, var(--ch-accent) 35%, transparent); }
.channel:hover::before { transform: scaleX(1); }

.channel__icon {
  flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  width: 52px; height: 52px;
  border-radius: var(--ch-r-md);
  color: #fff;
  background: var(--ch-accent);
  box-shadow: 0 10px 24px -12px color-mix(in srgb, var(--ch-accent) 80%, transparent);
  transition: transform var(--ch-dur) var(--ch-ease-spring);
}
.channel:hover .channel__icon { transform: rotate(-6deg) scale(1.08); }
.channel__icon svg { width: 27px; height: 27px; }
.channel__name {
  font-family: var(--ch-font-display);
  font-weight: 700;
  font-size: var(--ch-text-lg);
  color: var(--ch-ink);
}
.channel__go {
  margin-inline-start: auto;
  display: inline-flex; align-items: center; justify-content: center;
  width: 36px; height: 36px;
  border-radius: 50%;
  color: var(--ch-muted-2);
  background: color-mix(in srgb, var(--ch-blue) 6%, transparent);
  transition: transform var(--ch-dur) var(--ch-ease-out), color var(--ch-dur) var(--ch-ease-out), background-color var(--ch-dur) var(--ch-ease-out);
}
.channel__go svg { width: 19px; height: 19px; }
.channel:hover .channel__go { color: #fff; background: var(--ch-accent); transform: translateX(-4px); }

/* ---------------- Status pill ---------------- */
.status-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  border-radius: var(--ch-r-pill);
  background: var(--ch-surface);
  border: 1px solid var(--ch-line-soft);
  font-size: var(--ch-text-xs);
  font-weight: 600;
  color: var(--ch-ink-soft);
  box-shadow: var(--ch-shadow-xs);
}
.status-pill__dot {
  position: relative;
  width: 8px; height: 8px; border-radius: 50%;
  background: #22C55E;
}
.status-pill__dot::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  background: #22C55E;
  animation: pulseRing 2.2s var(--ch-ease-out) infinite;
}
@keyframes pulseRing {
  0% { transform: scale(1); opacity: 0.7; }
  80%, 100% { transform: scale(3.2); opacity: 0; }
}

/* ---------------- FAQ / Accordion ---------------- */
.faq { display: grid; gap: var(--ch-space-3); max-width: 56rem; margin-inline: auto; }
.faq__item {
  background: var(--ch-surface);
  border: 1px solid var(--ch-line-soft);
  border-radius: var(--ch-r-lg);
  box-shadow: var(--ch-shadow-xs);
  overflow: hidden;
  transition: border-color var(--ch-dur) var(--ch-ease-out), box-shadow var(--ch-dur) var(--ch-ease-out);
}
.faq__item.is-open { border-color: color-mix(in srgb, var(--ch-accent) 30%, transparent); box-shadow: var(--ch-shadow-sm); }
.faq__q {
  display: flex; align-items: center; gap: var(--ch-space-4);
  width: 100%;
  padding: var(--ch-space-5);
  background: none; border: 0;
  text-align: start;
  font-family: var(--ch-font-display);
  font-weight: 700;
  font-size: var(--ch-text-md);
  color: var(--ch-ink);
  cursor: pointer;
}
.faq__marker {
  flex: none;
  width: 30px; height: 30px;
  margin-inline-start: auto;
  border-radius: 50%;
  display: inline-flex; align-items: center; justify-content: center;
  color: var(--ch-accent);
  background: color-mix(in srgb, var(--ch-blue) 8%, transparent);
  transition: transform var(--ch-dur) var(--ch-ease-spring), background-color var(--ch-dur) var(--ch-ease-out), color var(--ch-dur);
}
.faq__marker svg { width: 15px; height: 15px; }
.faq__item.is-open .faq__marker { transform: rotate(45deg); background: var(--ch-accent); color: #fff; }
.faq__a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows var(--ch-dur-slow) var(--ch-ease-out);
}
.faq__item.is-open .faq__a { grid-template-rows: 1fr; }
.faq__a-inner { overflow: hidden; }
.faq__a p {
  padding: 0 var(--ch-space-5) var(--ch-space-5);
  color: var(--ch-muted);
  font-size: var(--ch-text-sm);
}

/* ---------------- Loader ---------------- */
.loader {
  position: fixed; inset: 0;
  z-index: var(--ch-z-loader);
  display: none;
  place-items: center;
  background: linear-gradient(135deg, var(--ch-bg) 0%, var(--ch-bg-2) 100%);
  transition: opacity var(--ch-dur-slow) var(--ch-ease-out), visibility var(--ch-dur-slow);
}
/* Only show as a splash when JS is available (no-JS users see content immediately) */
.js .loader { display: grid; }
.loader.is-done { opacity: 0; visibility: hidden; }
.loader__inner { display: grid; justify-items: center; gap: var(--ch-space-5); text-align: center; }
.loader__logo { height: 118px; width: auto; animation: loaderPop 0.9s var(--ch-ease-spring) both; }
.loader__word { font-family: var(--ch-font-display); font-weight: 800; font-size: 1.4rem; letter-spacing: 0.02em; }
.loader__bar { width: min(220px, 60vw); height: 4px; border-radius: var(--ch-r-pill); background: var(--ch-line-soft); overflow: hidden; }
.loader__bar span { display: block; height: 100%; width: 0; border-radius: inherit; background: linear-gradient(90deg, var(--ch-blue), var(--ch-coral)); animation: loaderBar 1.1s var(--ch-ease-out) forwards; }
.loader__hint { font-size: var(--ch-text-xs); color: var(--ch-muted); }
@keyframes loaderPop { from { transform: translateY(14px) scale(0.86); opacity: 0; } to { transform: none; opacity: 1; } }
@keyframes loaderBar { to { width: 100%; } }

/* ---------------- Custom cursor ---------------- */
.cursor, .cursor-dot { position: fixed; top: 0; left: 0; z-index: var(--ch-z-cursor); pointer-events: none; opacity: 0; }
.cursor {
  width: 34px; height: 34px;
  margin: -17px 0 0 -17px;
  border: 1.5px solid var(--ch-accent);
  border-radius: 50%;
  background: color-mix(in srgb, var(--ch-accent) 8%, transparent);
  transition: width var(--ch-dur) var(--ch-ease-out), height var(--ch-dur) var(--ch-ease-out),
    margin var(--ch-dur) var(--ch-ease-out), opacity var(--ch-dur) var(--ch-ease-out),
    background-color var(--ch-dur) var(--ch-ease-out);
}
.cursor-dot {
  width: 5px; height: 5px;
  margin: -2.5px 0 0 -2.5px;
  border-radius: 50%;
  background: var(--ch-accent);
}
body.has-cursor .cursor, body.has-cursor .cursor-dot { opacity: 1; }
body.cursor-active .cursor { width: 60px; height: 60px; margin: -30px 0 0 -30px; background: color-mix(in srgb, var(--ch-accent) 16%, transparent); }

/* ---------------- Marquee ---------------- */
.marquee {
  display: flex;
  overflow: hidden;
  user-select: none;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee__track { display: flex; gap: 3rem; padding-inline: 1.5rem; flex: none; min-width: 100%; animation: marquee 32s linear infinite; }
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__item { display: inline-flex; align-items: center; gap: 0.9rem; font-family: var(--ch-font-display); font-weight: 700; font-size: var(--ch-text-lg); color: var(--ch-ink-soft); white-space: nowrap; }
.marquee__sep { width: 9px; height: 9px; border-radius: 50%; background: var(--ch-coral); }
@keyframes marquee { to { transform: translateX(100%); } }

/* ---------------- Speech bubble ---------------- */
.speech {
  position: absolute;
  z-index: 4;
  max-width: 15rem;
  padding: 10px 14px;
  border-radius: var(--ch-r-md);
  background: var(--ch-surface);
  border: 1px solid var(--ch-line-soft);
  box-shadow: var(--ch-shadow-md);
  font-size: var(--ch-text-xs);
  font-weight: 600;
  color: var(--ch-ink-soft);
  opacity: 0;
  transform: translateY(8px) scale(0.96);
  transition: opacity var(--ch-dur) var(--ch-ease-out), transform var(--ch-dur) var(--ch-ease-spring);
  pointer-events: none;
}
.speech.is-show { opacity: 1; transform: none; }
.speech::after {
  content: "";
  position: absolute;
  inset-block-end: -6px;
  inset-inline-start: 24px;
  width: 12px; height: 12px;
  background: var(--ch-surface);
  border-inline-end: 1px solid var(--ch-line-soft);
  border-block-end: 1px solid var(--ch-line-soft);
  transform: rotate(45deg);
}

/* ---------------- Scroll progress ---------------- */
.scroll-progress {
  position: fixed;
  inset-block-start: 0; inset-inline: 0;
  height: 3px;
  z-index: calc(var(--ch-z-header) + 2);
  transform-origin: right;
  transform: scaleX(0);
  background: linear-gradient(90deg, var(--ch-blue), var(--ch-coral));
}

/* ---------------- Social row ---------------- */
.social { display: flex; align-items: center; gap: 0.55rem; flex-wrap: wrap; }
.social__link {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px;
  border-radius: var(--ch-r-md);
  color: var(--ch-ink-soft);
  background: var(--ch-surface);
  border: 1px solid var(--ch-line-soft);
  box-shadow: var(--ch-shadow-xs);
  transition: transform var(--ch-dur) var(--ch-ease-spring), color var(--ch-dur) var(--ch-ease-out),
    border-color var(--ch-dur) var(--ch-ease-out), box-shadow var(--ch-dur) var(--ch-ease-out), background-color var(--ch-dur);
}
.social__link:hover { color: #fff; background: var(--ch-accent); border-color: transparent; transform: translateY(-3px); box-shadow: 0 14px 26px -12px color-mix(in srgb, var(--ch-accent) 75%, transparent); }
.social__link svg { width: 21px; height: 21px; }