/* ============================================================
   tfkir.net — Components
   ============================================================ */

/* ---------- Buttons ---------- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.65em;
  padding: 0.86em 1.65em;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: transform 0.35s var(--ease-out), box-shadow 0.35s var(--ease-out),
    background 0.3s var(--ease), border-color 0.3s var(--ease), color 0.3s var(--ease);
  isolation: isolate;
  overflow: hidden;
}

.btn svg { width: 1.1em; height: 1.1em; flex: none; }
.btn:active { transform: translateY(1px) scale(0.99); }

.btn--primary {
  color: #04100e;
  background: var(--grad-brand);
  box-shadow: 0 16px 40px -20px rgba(52, 208, 184, 0.75);
}
.btn--primary:hover {
  color: #04100e;
  transform: translateY(-2px);
  box-shadow: 0 22px 50px -20px rgba(52, 208, 184, 0.85);
}
[data-theme="light"] .btn--primary { color: #fff; }

.btn--ghost {
  color: var(--text);
  border-color: var(--line-strong);
  background: var(--surface);
  backdrop-filter: blur(8px);
}
.btn--ghost:hover {
  color: var(--text);
  border-color: var(--teal-500);
  background: rgba(52, 208, 184, 0.08);
  transform: translateY(-2px);
}

.btn--quiet {
  color: var(--text-soft);
  padding-inline: 0.9em;
}
.btn--quiet:hover { color: var(--teal-300); }

.btn--sm { padding: 0.6em 1.15em; font-size: var(--fs-xs); }
.btn--lg { padding: 1.02em 2.05em; font-size: 1rem; }
.btn--block { width: 100%; }

.btn__arrow { transition: transform 0.35s var(--ease-out); }
.btn:hover .btn__arrow { transform: translateX(-4px); }

/* Text link with animated underline */
.tlink {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  color: var(--teal-300);
  font-weight: 500;
}
.tlink::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: -3px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s var(--ease-out);
}
.tlink:hover::after { transform: scaleX(1); transform-origin: left; }

/* ---------- Header ---------- */
.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 90;
  transition: background 0.4s var(--ease), border-color 0.4s var(--ease),
    backdrop-filter 0.4s var(--ease), box-shadow 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.site-header[data-stuck="true"] {
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom-color: var(--line);
  box-shadow: 0 12px 40px -30px rgba(0, 0, 0, 0.9);
}
[data-theme="light"] .site-header[data-stuck="true"] {
  background: color-mix(in srgb, var(--bg) 86%, transparent);
}

.site-header__bar {
  display: flex;
  align-items: center;
  gap: 1rem;
  min-height: var(--header-h);
}

/* Brand */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  color: var(--text);
  flex: none;
}
.brand:hover { color: var(--text); }
.brand__mark {
  width: 44px; height: 44px;
  flex: none;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: var(--grad-brand);
  color: #04100e;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 700;
  box-shadow: 0 8px 22px -10px rgba(52, 208, 184, 0.8);
  position: relative;
  overflow: hidden;
}
[data-theme="light"] .brand__mark { color: #fff; }
.brand__mark::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(200deg, rgba(255, 255, 255, 0.45), transparent 55%);
}
.brand__text { display: flex; flex-direction: column; line-height: 1.2; }
.brand__name {
  font-family: var(--font-display);
  font-size: 1.08rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}
.brand__sub {
  font-family: var(--font-latin);
  font-size: 0.6rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--faint);
}

/* Nav */
.nav {
  margin-inline-start: auto;
  display: flex;
  align-items: center;
  gap: 0.15rem;
}
.nav__link {
  position: relative;
  padding: 0.5rem 0.78rem;
  border-radius: var(--r-sm);
  font-size: 0.915rem;
  font-weight: 400;
  color: var(--muted);
  transition: color 0.28s var(--ease), background 0.28s var(--ease);
  white-space: nowrap;
}
.nav__link:hover { color: var(--text); background: var(--surface-2); }
.nav__link[aria-current="page"] { color: var(--text); }
.nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  inset-inline: 0.78rem;
  bottom: 0.15rem;
  height: 2px;
  border-radius: 2px;
  background: var(--grad-brand);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex: none;
}

.icon-btn {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--text-soft);
  transition: color 0.3s, border-color 0.3s, background 0.3s, transform 0.3s var(--ease-out);
}
.icon-btn:hover {
  color: var(--teal-300);
  border-color: rgba(52, 208, 184, 0.4);
  background: rgba(52, 208, 184, 0.08);
  transform: translateY(-2px);
}
.icon-btn svg { width: 19px; height: 19px; }
.icon-btn .i-sun { display: none; }
[data-theme="light"] .icon-btn .i-sun { display: block; }
[data-theme="light"] .icon-btn .i-moon { display: none; }

.nav-toggle { display: none; }

/* Scroll progress */
.scroll-progress {
  position: absolute;
  inset-block-end: -1px;
  inset-inline-start: 0;
  height: 2px;
  width: 100%;
  transform-origin: right;
  transform: scaleX(0);
  background: var(--grad-brand);
  z-index: 2;
}

/* ---------- Mobile drawer ---------- */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 120;
  visibility: hidden;
  pointer-events: none;
}
.drawer[data-open="true"] { visibility: visible; pointer-events: auto; }
.drawer__scrim {
  position: absolute;
  inset: 0;
  background: rgba(3, 6, 9, 0.72);
  backdrop-filter: blur(6px);
  opacity: 0;
  transition: opacity 0.4s var(--ease);
}
.drawer[data-open="true"] .drawer__scrim { opacity: 1; }
.drawer__panel {
  position: absolute;
  inset-block: 0;
  inset-inline-end: 0;
  width: min(360px, 86vw);
  padding: 1.4rem var(--gut) 2rem;
  background: color-mix(in srgb, var(--ink-800) 96%, transparent);
  border-inline-start: 1px solid var(--line);
  backdrop-filter: blur(22px);
  transform: translateX(-102%);
  transition: transform 0.5s var(--ease-out);
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  overflow-y: auto;
}
[dir="rtl"] .drawer__panel { transform: translateX(-102%); }
[dir="ltr"] .drawer__panel { transform: translateX(102%); }
.drawer[data-open="true"] .drawer__panel { transform: translateX(0); }

.drawer__head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}
.drawer__link {
  padding: 0.85rem 0.9rem;
  border-radius: var(--r-sm);
  font-family: var(--font-display);
  font-size: 1.1rem;
  color: var(--text-soft);
  border: 1px solid transparent;
  opacity: 0;
  transform: translateX(-14px);
  transition: color 0.25s, background 0.25s, border-color 0.25s, opacity 0.4s, transform 0.4s var(--ease-out);
}
.drawer[data-open="true"] .drawer__link {
  opacity: 1;
  transform: none;
  transition-delay: calc(var(--i, 0) * 45ms + 90ms);
}
.drawer__link:hover,
.drawer__link[aria-current="page"] {
  color: var(--teal-300);
  background: rgba(52, 208, 184, 0.07);
  border-color: rgba(52, 208, 184, 0.22);
}
.drawer__foot {
  margin-top: auto;
  padding-top: 1.4rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

@media (max-width: 1080px) {
  .nav { display: none; }
  .nav-toggle { display: grid; }
  .header-actions { margin-inline-start: auto; }
}

/* ---------- Cards ---------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(1.35rem, 1rem + 1.2vw, 2rem);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
  transition: transform 0.5s var(--ease-out), border-color 0.4s var(--ease),
    box-shadow 0.5s var(--ease-out);
  overflow: hidden;
  isolation: isolate;
}
[data-theme="light"] .card {
  background: linear-gradient(165deg, #fff, rgba(255, 255, 255, 0.6));
  box-shadow: var(--sh-sm);
}
.card::before {
  content: "";
  position: absolute;
  inset-block-start: 0;
  inset-inline: 0;
  height: 1px;
  background: var(--grad-brand);
  opacity: 0;
  transition: opacity 0.45s var(--ease);
}
.card:hover {
  transform: translateY(-6px);
  border-color: rgba(52, 208, 184, 0.28);
  box-shadow: var(--sh-lg);
}
.card:hover::before { opacity: 1; }
.card > * + * { margin-top: 0.75rem; }
.card__icon {
  width: 46px; height: 46px;
  display: grid;
  place-items: center;
  border-radius: 13px;
  background: var(--grad-brand-soft);
  border: 1px solid var(--line-strong);
  color: var(--teal-300);
  margin-bottom: 0.35rem;
}
[data-theme="light"] .card__icon { color: var(--teal-600); }
.card__icon svg { width: 22px; height: 22px; }
.card__title { font-size: var(--fs-h4); font-weight: 600; }
.card__text { color: var(--muted); font-size: 0.945rem; line-height: 1.8; }
.card__foot { margin-top: auto; padding-top: 1.1rem; }

/* Numbered feature cards */
.fcard { counter-increment: fcard; }
.card__num { font-family: var(--font-latin); font-size: 0.72rem; font-weight: 600; letter-spacing: 0.2em; color: var(--teal-400); }
.fcard__num {
  font-family: var(--font-latin);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--teal-400);
}
.fcard::after { counter-reset: fcard; }

/* ---------- Section number chip ---------- */
.chip-num {
  font-family: var(--font-latin);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--faint);
  display: inline-block;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--line);
}

/* ---------- Marquee / pulse line ---------- */
.pulse-line {
  display: block;
  width: 100%;
  height: 62px;
  color: rgba(52, 208, 184, 0.35);
}
[data-theme="light"] .pulse-line { color: rgba(13, 148, 136, 0.4); }
.pulse-line path {
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-dasharray: 1400;
  stroke-dashoffset: 1400;
}
.is-in .pulse-line path { animation: draw 3.2s var(--ease-out) forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }

/* ---------- Stats ---------- */
.stat { text-align: start; }
.stat__num {
  font-family: var(--font-latin);
  font-size: clamp(1.9rem, 1.2rem + 2.4vw, 3.15rem);
  font-weight: 600;
  line-height: 1.05;
  background: var(--grad-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  font-variant-numeric: tabular-nums;
}
.stat__label {
  margin-top: 0.4rem;
  font-size: var(--fs-xs);
  color: var(--muted);
  letter-spacing: 0.06em;
}
.stat__unit { font-size: 0.55em; }

/* ---------- Quote ---------- */
.quote {
  position: relative;
  padding: clamp(1.5rem, 1.1rem + 1.6vw, 2.6rem);
  padding-inline-start: clamp(1.6rem, 1.2rem + 1.6vw, 3.2rem);
  border-inline-start: 2px solid var(--brass-400);
  border-radius: 0 var(--r-md) var(--r-md) 0;
  background: var(--grad-brand-soft);
}
.quote p {
  font-family: var(--font-serif);
  font-size: clamp(1.12rem, 0.98rem + 0.7vw, 1.6rem);
  line-height: 2;
  color: var(--text);
}
.quote cite {
  display: block;
  margin-top: 0.9rem;
  font-style: normal;
  font-family: var(--font-body);
  font-size: var(--fs-sm);
  color: var(--muted);
}

/* ---------- Timeline ---------- */
.timeline { position: relative; padding-inline-start: 2.1rem; }
.timeline::before {
  content: "";
  position: absolute;
  inset-block: 6px;
  inset-inline-start: 5px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--line-strong) 8%, var(--line-strong) 92%, transparent);
}
.tl-item { position: relative; padding-bottom: 2.1rem; }
.tl-item:last-child { padding-bottom: 0; }
.tl-item::before {
  content: "";
  position: absolute;
  inset-inline-start: -2.1rem;
  inset-block-start: 0.62rem;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--teal-400);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--teal-400) 16%, transparent);
}
.tl-item__when {
  font-family: var(--font-latin);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--brass-400);
}
.tl-item__title { margin-top: 0.3rem; font-size: var(--fs-h4); }
.tl-item__text { margin-top: 0.4rem; color: var(--muted); font-size: 0.945rem; }

/* ---------- Accordion ---------- */
.acc { border-top: 1px solid var(--line); }
.acc__item { border-bottom: 1px solid var(--line); }
.acc__btn {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.2rem;
  padding: 1.25rem 0.15rem;
  text-align: start;
  font-family: var(--font-display);
  font-size: clamp(1.02rem, 0.97rem + 0.35vw, 1.2rem);
  font-weight: 500;
  color: var(--text-soft);
  transition: color 0.28s var(--ease);
}
.acc__btn:hover { color: var(--teal-300); }
.acc__btn[aria-expanded="true"] { color: var(--text); }
.acc__sign {
  flex: none;
  position: relative;
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  transition: border-color 0.3s, background 0.3s, transform 0.4s var(--ease-out);
}
.acc__sign::before,
.acc__sign::after {
  content: "";
  position: absolute;
  inset-block-start: 50%;
  inset-inline-start: 50%;
  width: 10px; height: 1.5px;
  background: currentColor;
  translate: -50% -50%;
  transition: transform 0.4s var(--ease-out), opacity 0.3s;
}
.acc__sign::after { transform: rotate(90deg); }
.acc__btn[aria-expanded="true"] .acc__sign {
  border-color: var(--teal-500);
  background: rgba(52, 208, 184, 0.1);
  transform: rotate(180deg);
}
.acc__btn[aria-expanded="true"] .acc__sign::after { opacity: 0; }
.acc__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 0.5s var(--ease-out);
}
.acc__panel > div { overflow: hidden; }
.acc__item[data-open="true"] .acc__panel { grid-template-rows: 1fr; }
.acc__body { padding: 0 0.15rem 1.4rem; color: var(--muted); max-width: 72ch; }

/* ---------- Tabs / filters ---------- */
.chips { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.chip {
  padding: 0.52em 1.1em;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  font-size: var(--fs-xs);
  font-weight: 500;
  transition: color 0.28s, border-color 0.28s, background 0.28s, transform 0.28s var(--ease-out);
}
.chip:hover { color: var(--text); transform: translateY(-2px); }
.chip[aria-pressed="true"],
.chip.is-active {
  color: #04100e;
  background: var(--grad-brand);
  border-color: transparent;
  box-shadow: 0 10px 26px -14px rgba(52, 208, 184, 0.8);
}
[data-theme="light"] .chip[aria-pressed="true"],
[data-theme="light"] .chip.is-active { color: #fff; }

/* ---------- Form ---------- */
.field { display: flex; flex-direction: column; gap: 0.5rem; }
.field__label {
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  color: var(--text-soft);
  display: flex;
  align-items: center;
  gap: 0.4em;
}
.field__label .req { color: var(--teal-400); }
.field__hint { font-size: var(--fs-xs); color: var(--faint); }

.input,
.textarea,
.select {
  width: 100%;
  padding: 0.82em 1em;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--text);
  font-size: 0.95rem;
  line-height: 1.6;
  transition: border-color 0.28s, background 0.28s, box-shadow 0.28s;
}
.input::placeholder,
.textarea::placeholder { color: var(--faint); }
.input:focus,
.textarea:focus,
.select:focus {
  outline: none;
  border-color: var(--teal-500);
  background: var(--surface-2);
  box-shadow: 0 0 0 3px rgba(52, 208, 184, 0.14);
}
.textarea { min-height: 148px; resize: vertical; }
.select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%238b97a5' stroke-width='2' stroke-linecap='round'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: left 0.95rem center;
  background-size: 17px;
  padding-inline-end: 1em;
  padding-inline-start: 2.6rem;
}
[dir="ltr"] .select { background-position: right 0.95rem center; padding-inline-start: 1em; padding-inline-end: 2.6rem; }
}
.field[data-invalid="true"] .input,
.field[data-invalid="true"] .textarea,
.field[data-invalid="true"] .select { border-color: #e0645c; }
.field__err {
  font-size: var(--fs-xs);
  color: #f08a83;
  display: none;
}
.field[data-invalid="true"] .field__err { display: block; }

.hp {
  position: absolute !important;
  inset-inline-start: -9999px;
  opacity: 0;
  height: 0;
  pointer-events: none;
}

.form-note { font-size: var(--fs-xs); color: var(--faint); line-height: 1.7; }

.form-status {
  padding: 1rem 1.2rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--line-strong);
  font-size: var(--fs-sm);
  display: none;
  gap: 0.7rem;
  align-items: flex-start;
}
.form-status[data-show="true"] { display: flex; }
.form-status[data-tone="ok"] {
  border-color: rgba(52, 208, 184, 0.4);
  background: rgba(52, 208, 184, 0.08);
  color: var(--teal-100);
}
.form-status[data-tone="err"] {
  border-color: rgba(224, 100, 92, 0.4);
  background: rgba(224, 100, 92, 0.08);
  color: #f5b4af;
}
.form-status svg { width: 20px; height: 20px; flex: none; margin-top: 2px; }

/* ---------- Floating UI ---------- */
.to-top {
  position: fixed;
  inset-block-end: calc(22px + env(safe-area-inset-bottom, 0px));
  inset-inline-start: calc(22px + env(safe-area-inset-left, 0px));
  z-index: 80;
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: color-mix(in srgb, var(--ink-800) 85%, transparent);
  backdrop-filter: blur(12px);
  color: var(--text-soft);
  box-shadow: var(--sh-md);
  opacity: 0;
  transform: translateY(14px) scale(0.9);
  pointer-events: none;
  transition: opacity 0.4s, transform 0.4s var(--ease-out), color 0.3s, border-color 0.3s;
}
.to-top[data-show="true"] { opacity: 1; transform: none; pointer-events: auto; }
.to-top:hover { color: var(--teal-300); border-color: var(--teal-500); }
.to-top svg { width: 18px; height: 18px; }

.toast {
  position: fixed;
  inset-block-end: calc(24px + env(safe-area-inset-bottom, 0px));
  inset-inline-end: calc(24px + env(safe-area-inset-right, 0px));
  z-index: 200;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.85rem 1.15rem;
  border-radius: var(--r-sm);
  border: 1px solid var(--teal-500);
  background: color-mix(in srgb, var(--ink-700) 94%, transparent);
  backdrop-filter: blur(14px);
  color: var(--text);
  font-size: var(--fs-sm);
  box-shadow: var(--sh-lg);
  opacity: 0;
  transform: translateY(18px);
  pointer-events: none;
  transition: opacity 0.35s, transform 0.35s var(--ease-out);
}
.toast[data-show="true"] { opacity: 1; transform: none; }
.toast svg { width: 18px; height: 18px; color: var(--teal-300); }

/* ---------- Footer ---------- */
.site-footer {
  margin-top: clamp(3rem, 2rem + 4vw, 6rem);
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--ink-800) 55%, transparent));
  padding-top: clamp(2.75rem, 2rem + 3vw, 4.5rem);
}
[data-theme="light"] .site-footer {
  background: linear-gradient(180deg, transparent, color-mix(in srgb, var(--ink-700) 40%, transparent));
}

.footer-top {
  display: grid;
  gap: clamp(1.8rem, 1.2rem + 2.4vw, 3.2rem);
  grid-template-columns: minmax(0, 1.5fr) repeat(auto-fit, minmax(140px, 1fr));
  padding-bottom: clamp(2rem, 1.5rem + 2vw, 3rem);
}
.footer-brand__text { color: var(--muted); font-size: 0.93rem; max-width: 40ch; margin-top: 1rem; }

.socials { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 1.35rem; }
.social {
  width: 44px; height: 44px;
  display: grid;
  place-items: center;
  border-radius: 11px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  transition: color 0.3s, border-color 0.3s, background 0.3s, transform 0.35s var(--ease-out);
}
.social:hover {
  color: var(--teal-300);
  border-color: rgba(52, 208, 184, 0.4);
  background: rgba(52, 208, 184, 0.08);
  transform: translateY(-3px);
}
.social svg { width: 18px; height: 18px; }

.footer-col__title {
  font-family: var(--font-body);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; padding: 0; display: flex; flex-direction: column; gap: 0.6rem; }
.footer-col a { color: var(--muted); font-size: 0.93rem; transition: color 0.25s, padding-inline-start 0.25s; }
.footer-col a:hover { color: var(--teal-300); padding-inline-start: 4px; }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding-block: 1.4rem;
  border-top: 1px solid var(--line);
  font-size: var(--fs-xs);
  color: var(--faint);
}
.footer-bottom__built { display: inline-flex; align-items: center; gap: 0.5em; }
.pulse-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--teal-400);
  box-shadow: 0 0 0 0 rgba(52, 208, 184, 0.6);
  animation: pulse 2.4s infinite;
}
@keyframes pulse {
  70% { box-shadow: 0 0 0 9px rgba(52, 208, 184, 0); }
  100% { box-shadow: 0 0 0 0 rgba(52, 208, 184, 0); }
}
/* ---------- Language switcher ---------- */
.lang-switch {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  padding: 2px;
  background: var(--surface);
  gap: 2px;
}
.lang-switch button {
  padding: 0.32em 0.7em;
  border-radius: var(--r-pill);
  font-family: var(--font-latin);
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--muted);
  transition: color 0.25s, background 0.25s;
}
.lang-switch button[aria-pressed="true"] {
  color: #04100e;
  background: var(--grad-brand);
}
[data-theme="light"] .lang-switch button[aria-pressed="true"] { color: #fff; }
.lang-switch button:hover:not([aria-pressed="true"]) { color: var(--teal-300); }

@media (max-width: 560px) { .lang-switch { display: none; } }