/* ─── Video Button ─── */
.btn--video {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  background: var(--white-12);
  color: var(--color-white);
  border: 2px solid var(--white-45);
  border-radius: 4px;
  font-size: var(--fs-sm);
  font-weight: 700;
  cursor: pointer;
  transition: background var(--transition-base), border-color var(--transition-base);
}
.btn--video:hover {
  background: var(--white-22);
  border-color: var(--white-75);
}
.btn--video__play {
  font-size: 0.7rem;
}

/* ─── Video Modal ─── */
.video-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9000;
  align-items: center;
  justify-content: center;
}
.video-modal.is-open {
  display: flex;
}
.video-modal__backdrop {
  position: absolute;
  inset: 0;
  background: var(--overlay-modal);
  cursor: pointer;
}
.video-modal__box {
  position: relative;
  z-index: 1;
  width: 90%;
  max-width: 960px;
  box-shadow: 0 32px 80px var(--black-60);
}
.video-modal__close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  opacity: 0.75;
  transition: opacity var(--transition-base);
}
.video-modal__close:hover { opacity: 1; }

/* ─── Video Embed ─── */
.video-embed {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}
.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

/* ─── Buttons ─── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.8rem;
  border-radius: 4px;
  font-size: var(--fs-sm);
  font-weight: 700;
  letter-spacing: 0.3px;
  transition: filter var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast), background var(--transition-fast), color var(--transition-fast);
  white-space: nowrap;
  border: 2px solid transparent;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-accent);
  color: var(--color-white);
}
.btn--primary:hover {
  filter: brightness(1.1);
}

.btn--outline {
  border-color: var(--white-65);
  color: var(--color-white);
  background: var(--white-5);
  backdrop-filter: blur(8px);
}
.btn--outline:hover {
  background: var(--color-white);
  color: var(--color-primary);
  border-color: var(--color-white);
}

.btn--outline-dark {
  border-color: var(--color-accent);
  color: var(--color-accent);
  background: transparent;
}
.btn--outline-dark:hover {
  background: var(--color-accent);
  color: var(--color-white);
  border-color: transparent;
}

.btn--ghost {
  color: var(--color-accent);
  padding-left: 0;
  padding-right: 0;
  border-radius: 0;
}
.btn--ghost:hover { transform: none; filter: none; opacity: 0.8; }

/* ─── Cards ─── */
.card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--gap-md);
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-xs);
  transition: transform var(--transition-base), box-shadow var(--transition-base), background var(--transition-base), border-color var(--transition-base);
}
.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
  background:
    linear-gradient(var(--color-white), var(--color-white)) padding-box,
    var(--gradient-accent) border-box;
}
.card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--gap-sm);
  color: var(--color-accent);
}
.card__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  margin-bottom: var(--gap-xs);
  color: var(--color-primary);
}
.card__text {
  color: var(--color-text-light);
  line-height: var(--line-height);
  font-size: var(--fs-sm);
}
.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: var(--gap-sm);
  color: var(--color-accent);
  font-weight: 700;
  font-size: var(--fs-sm);
  transition: gap var(--transition-fast), opacity var(--transition-fast);
}
.card__link:hover { gap: 0.6rem; }

/* Dark section cards */
.section--dark .card {
  background: var(--white-5);
  border-color: var(--white-8);
  box-shadow: none;
}
.section--dark .card:hover {
  background: var(--white-12);
  border-color: var(--white-22);
  transform: none;
}
.section--dark .card__title { color: var(--color-white); }
.section--dark .card__text  { color: var(--white-70); }
.section--dark .card__icon  { color: var(--color-accent-light); }

/* ─── Stat row ─── */
.stat-item {
  text-align: center;
}
.stat-item__number {
  font-size: var(--fs-stat);
  font-weight: 700;
  line-height: 1;
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.35rem;
}
.stat-item__label {
  font-size: var(--fs-sm);
  color: var(--white-88);
  font-weight: 600;
}

/* ─── Header ─── */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-height);
  z-index: 1000;
  background: var(--color-white);
  box-shadow: 0 1px 0 var(--black-8), var(--shadow-xs);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: none;
  padding: 0 var(--container-px);
}

/* Logo */
.logo img {
  height: 38px;
  width: auto;
}

/* Navigation */
.nav-list {
  display: flex;
  align-items: center;
  gap: 0.1rem;
}
.nav-link,
.dropdown-toggle {
  padding: 0.5rem 0.9rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
  background: transparent;
}
.nav-link:hover,
.dropdown-toggle:hover {
  color: var(--color-accent);
  background: var(--color-gray-100);
}
.nav-link.active { color: var(--color-accent); }

/* Dropdown */
.has-dropdown { position: relative; }
.dropdown-toggle::after {
  content: '';
  display: inline-block;
  width: 5px; height: 5px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  margin-left: 6px;
  transition: transform var(--transition-fast);
}
.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 220px;
  background: var(--color-white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 0.5rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), transform var(--transition-fast), visibility var(--transition-fast);
  border: 1px solid var(--color-gray-200);
}
.has-dropdown:hover .dropdown-menu,
.has-dropdown:focus-within .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.dropdown-menu a {
  display: block;
  padding: 0.6rem 0.9rem;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--color-text);
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast), color var(--transition-fast);
}
.dropdown-menu a:hover {
  background: var(--color-gray-100);
  color: var(--color-accent);
}

/* Mobile menu toggle */
.mobile-menu-toggle {
  display: none;
  width: 36px; height: 36px;
  position: relative;
  z-index: 1001;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}
.mobile-menu-toggle:hover { background: var(--color-gray-100); }

.hamburger,
.hamburger::before,
.hamburger::after {
  display: block;
  width: 22px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base), opacity var(--transition-fast), background var(--transition-base);
}
.hamburger { position: relative; }
.hamburger::before { content: ''; position: absolute; top: -7px; left: 0; }
.hamburger::after  { content: ''; position: absolute; bottom: -7px; left: 0; }

.mobile-menu-toggle[aria-expanded="true"] .hamburger { background: transparent; }
.mobile-menu-toggle[aria-expanded="true"] .hamburger::before {
  transform: rotate(45deg); top: 0; background: var(--color-text);
}
.mobile-menu-toggle[aria-expanded="true"] .hamburger::after {
  transform: rotate(-45deg); bottom: 0; background: var(--color-text);
}

@media (max-width: 767px) {
  .mobile-menu-toggle { display: flex; }
  .main-nav {
    position: fixed;
    top: 0; right: 0;
    width: min(320px, 85vw);
    height: 100dvh;
    background: var(--color-white);
    padding: calc(var(--header-height) + 1.5rem) 1.5rem 2rem;
    transform: translateX(100%);
    transition: transform var(--transition-base);
    box-shadow: var(--shadow-lg);
    overflow-y: auto;
  }
  .main-nav.nav--open { transform: translateX(0); }
  .nav-list { flex-direction: column; align-items: stretch; gap: 0; }
  .nav-item { border-bottom: 1px solid var(--color-gray-200); }
  .nav-link,
  .dropdown-toggle { color: var(--color-text); padding: 1.1rem 1rem; font-size: 1rem; border-radius: 0; border-bottom: none; min-height: 48px; display: flex; align-items: center; }
  .nav-link:hover, .dropdown-toggle:hover { color: var(--color-accent); background: transparent; }
  .has-dropdown { flex-direction: column; }
  .dropdown-menu {
    position: static;
    left: auto;
    opacity: 1; visibility: visible;
    transform: none; box-shadow: none;
    padding: 0;
    max-height: 0; overflow: hidden;
    transition: max-height var(--transition-base);
    border: none;
    min-width: 0;
    width: auto;
    background: transparent;
    border-radius: 0;
  }
  .dropdown-menu li {
    border-bottom: 1px solid var(--color-gray-100);
  }
  .dropdown-menu li:last-child {
    border-bottom: none;
  }
  .dropdown-menu a {
    padding: 0.85rem 0 0.85rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: 0;
    border-bottom: none;
    white-space: normal;
    word-break: break-word;
  }
  .has-dropdown.dropdown--open .dropdown-menu { max-height: 200px; }
  .has-dropdown:hover .dropdown-menu,
  .has-dropdown:focus-within .dropdown-menu {
    transform: none;
    left: auto;
    position: static;
    box-shadow: none;
  }
  .has-dropdown.dropdown--open .dropdown-toggle::after { transform: rotate(-135deg) translateY(-2px); }
}
body.no-scroll { overflow: hidden; }

/* ─── Footer ─── */
.site-footer {
  background: var(--color-primary);
  color: var(--white-75);
  padding: var(--gap-xl) 0 var(--gap-md);
  position: relative;
  overflow: hidden;
}
.site-footer::before {
  content: '';
  position: absolute;
  bottom: 0; right: -10%;
  width: 50%;
  aspect-ratio: 1;
  background: radial-gradient(circle, var(--accent-12) 0%, transparent 70%);
  pointer-events: none;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap-lg);
  margin-bottom: var(--gap-lg);
}
@media (min-width: 768px) {
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}
.footer-logo img {
  height: 38px;
  width: auto;
  margin-bottom: var(--gap-sm);
  filter: brightness(0) invert(1);
}
.footer-tagline {
  font-size: var(--fs-sm);
  color: var(--white-50);
  line-height: 1.6;
  max-width: 280px;
}
.footer-social {
  display: flex;
  gap: 0.75rem;
  margin-top: var(--gap-sm);
}
.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--white-8);
  border: 1px solid var(--white-10);
  transition: background var(--transition-fast), border-color var(--transition-fast);
}
.footer-social a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
}
.footer-social svg { width: 17px; height: 17px; fill: var(--color-white); }

.footer-heading {
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--white-45);
  margin-bottom: var(--gap-sm);
}
.footer-links a {
  display: block;
  padding: 0.3rem 0;
  font-size: var(--fs-sm);
  color: var(--white-65);
  font-weight: 600;
  transition: color var(--transition-fast);
}
.footer-links a:hover { color: var(--color-white); }

.footer-bar {
  border-top: 1px solid var(--white-8);
  padding-top: var(--gap-md);
  text-align: center;
  font-size: var(--fs-xs);
  color: var(--white-35);
}

/* ─── Accordion ─── */
.accordion-item {
  border-bottom: 1px solid var(--color-gray-200);
}
.accordion-header {
  width: 100%;
  text-align: left;
  padding: 1.25rem 0;
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--gap-sm);
  transition: color var(--transition-fast);
}
.accordion-header:hover { color: var(--color-accent); }
.accordion-icon {
  width: 22px; height: 22px;
  flex-shrink: 0;
  position: relative;
  background: var(--color-gray-100);
  border-radius: 50%;
}
.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  background: currentColor;
  border-radius: 1px;
  transition: transform var(--transition-base);
}
.accordion-icon::before { width: 10px; height: 2px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.accordion-icon::after  { width: 2px; height: 10px; top: 50%; left: 50%; transform: translate(-50%, -50%); }
.accordion-header[aria-expanded="true"] .accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}
.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.accordion-content {
  padding-bottom: 1.5rem;
  color: var(--color-text-light);
  line-height: var(--line-height);
}
.accordion-content h4 {
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--color-primary);
  margin-top: var(--gap-sm);
  margin-bottom: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.accordion-content p { margin-bottom: var(--gap-sm); }

/* ─── Logo Strip ─── */
.logo-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(1.5rem, 4vw, 3.5rem);
}
.logo-strip img {
  height: 44px;
  width: auto;
  opacity: 1;
  mix-blend-mode: multiply;
}

/* ─── CTA Band ─── */
.cta-band {
  position: relative;
  overflow: hidden;
  text-align: center;
  padding: var(--section-py) 0;
  background: var(--gradient-cta);
  color: var(--color-white);
}
.cta-band::before {
  content: '';
  position: absolute;
  top: -40%;
  left: -10%;
  width: 60%;
  aspect-ratio: 1;
  background: radial-gradient(circle, var(--accent-25) 0%, transparent 65%);
  pointer-events: none;
}
.cta-band::after {
  content: '';
  position: absolute;
  bottom: -40%;
  right: -5%;
  width: 50%;
  aspect-ratio: 1;
  background: radial-gradient(circle, var(--accent-30) 0%, transparent 65%);
  pointer-events: none;
}
.cta-band .container { position: relative; z-index: 1; }
.cta-band h2 {
  font-size: var(--fs-h1);
  font-weight: 700;
  margin-bottom: var(--gap-xs);
}
.cta-band p {
  font-size: var(--fs-subtitle);
  opacity: 0.85;
  margin-bottom: var(--gap-md);
  max-width: 520px;
  margin-left: auto;
  margin-right: auto;
  line-height: var(--line-height);
}

/* CTA band multi-button layout */
.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--gap-sm);
  justify-content: center;
  align-items: center;
}

/* Secondary outline button (lighter, for CTA band companions) */
.btn--outline-secondary {
  border-color: var(--white-35);
  color: var(--white-88);
  background: var(--white-8);
  backdrop-filter: blur(8px);
}
.btn--outline-secondary:hover {
  background: var(--white-18);
  border-color: var(--white-70);
  color: var(--color-white);
}

/* ─── Instance Gallery ─── */
.instance-card {
  display: block;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-gray-200);
  box-shadow: var(--shadow-xs);
  transition: box-shadow var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
}
.instance-card:hover {
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent-light);
}
.instance-card img {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: contain;
  background: var(--color-white);
  padding: var(--gap-xs);
}
.instance-card__label {
  padding: 0.7rem 1rem;
  font-size: var(--fs-xs);
  font-weight: 700;
  color: var(--color-primary);
  background: var(--color-white);
  text-align: center;
  letter-spacing: 0.3px;
}

/* ─── Case study card ─── */
.case-study {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--gap-lg);
  align-items: center;
}
@media (min-width: 768px) {
  .case-study { grid-template-columns: 1fr 1fr; }
}
.case-study__img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
}
.case-study__img img {
  width: 100%;
  aspect-ratio: 3/2;
  object-fit: cover;
}
.case-study__title {
  font-size: var(--fs-h3);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--gap-sm);
}
.case-study__text {
  color: var(--color-text-light);
  margin-bottom: var(--gap-md);
  line-height: var(--line-height);
}