.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.8rem 1.35rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

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

.btn--primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-soft));
  color: #fff;
  box-shadow: 0 10px 30px var(--accent-glow);
}

.btn--secondary {
  background: var(--surface);
  border-color: var(--border-strong);
  backdrop-filter: blur(12px);
}

.btn--ghost {
  background: transparent;
  border-color: var(--border-strong);
}

.btn--sm {
  min-height: 40px;
  padding: 0.55rem 1rem;
  font-size: 0.875rem;
}

.btn--block {
  width: 100%;
}

.btn.is-disabled,
.btn[aria-disabled="true"] {
  opacity: 0.55;
  pointer-events: none;
}

.glass {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: color-mix(in srgb, var(--bg) 78%, transparent);
  border-bottom: 1px solid transparent;
  backdrop-filter: blur(16px);
  transition: border-color 0.25s ease, background 0.25s ease;
}

.site-header.is-scrolled {
  border-bottom-color: var(--border);
  background: color-mix(in srgb, var(--bg) 88%, transparent);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  width: min(100% - 2rem, var(--max));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
}

.brand__mark {
  border-radius: 10px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: 1.1rem;
}

.site-nav__link {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.92rem;
  transition: color 0.2s ease;
}

.site-nav__link:hover,
.site-nav__link.is-active {
  color: var(--text);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: var(--surface);
  padding: 10px;
  flex-direction: column;
  justify-content: space-between;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

.theme-fab {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  z-index: 90;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  background: var(--surface);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-soft);
  cursor: pointer;
}

html[data-theme="dark"] .theme-fab__icon--moon,
html[data-theme="light"] .theme-fab__icon--sun {
  display: none;
}

.site-footer {
  padding: 4rem 0 2rem;
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg-elevated) 70%, transparent);
}

.site-footer__grid {
  display: grid;
  gap: 2rem;
  grid-template-columns: 1.4fr repeat(3, 1fr);
}

.site-footer__heading {
  font-family: var(--font-ui);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-subtle);
  margin-bottom: 1rem;
}

.site-footer__links a,
.social-list a {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text-muted);
  padding: 0.25rem 0;
  transition: color 0.2s ease;
}

.site-footer__links a:hover,
.social-list a:hover {
  color: var(--text);
}

.site-footer__tagline,
.site-footer__contact {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.site-footer__contact {
  display: grid;
  gap: 0.25rem;
  margin: 1rem 0;
}

.social-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.site-footer__bottom {
  margin-top: 2.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  color: var(--text-subtle);
  font-size: 0.9rem;
}

.soon-tag {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.15rem 0.4rem;
  border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 18%, transparent);
  color: var(--text);
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  border: 1px solid var(--border);
}

.status-pill--live {
  background: color-mix(in srgb, var(--success) 18%, transparent);
}

.form-field {
  display: grid;
  gap: 0.4rem;
  margin-bottom: 1rem;
}

.form-field label {
  font-weight: 600;
  font-size: 0.9rem;
}

.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  min-height: 48px;
  padding: 0.75rem 0.95rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: color-mix(in srgb, var(--bg) 55%, var(--surface-solid));
}

.form-field textarea {
  min-height: 140px;
  resize: vertical;
}

.form-alert {
  padding: 0.9rem 1rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.form-alert--success {
  background: color-mix(in srgb, var(--success) 16%, transparent);
  border: 1px solid color-mix(in srgb, var(--success) 40%, transparent);
}

.form-alert--error {
  background: color-mix(in srgb, var(--danger) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 35%, transparent);
}

.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-content: center;
  gap: 1rem;
  background: var(--bg);
  transition: opacity 0.45s ease, visibility 0.45s ease;
}

.page-loader.is-done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader__mark {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.4rem;
  letter-spacing: -0.02em;
  background: linear-gradient(90deg, var(--text), var(--accent-soft), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-loader__bar {
  width: 140px;
  height: 3px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--accent), var(--accent-soft), var(--accent));
  background-size: 200% 100%;
  animation: loader-slide 1s linear infinite;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  background: rgba(0, 0, 0, 0.55);
}

.modal.is-open {
  display: flex;
}

.modal__panel {
  width: min(100%, 560px);
  max-height: min(80vh, 720px);
  overflow: auto;
  padding: 1.5rem;
}

.modal__close {
  float: right;
  border: 0;
  background: transparent;
  font-size: 1.4rem;
  cursor: pointer;
  color: var(--text-muted);
}

@media (max-width: 960px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }

  .nav-toggle {
    display: flex;
  }

  .site-nav {
    position: fixed;
    inset: var(--header-h) 0 auto 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 1rem;
    padding: 1.25rem;
    background: color-mix(in srgb, var(--bg) 94%, transparent);
    border-bottom: 1px solid var(--border);
    backdrop-filter: blur(18px);
  }

  .site-nav.is-open {
    display: flex;
  }

  .site-nav__list {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}