/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-height);
  transition: background var(--transition), box-shadow var(--transition);
}

.site-header.is-scrolled {
  background: var(--armex-white);
  box-shadow: var(--shadow-header);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 1.5rem;
}

.site-header__logo img {
  height: 36px;
  width: auto;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.site-nav__link {
  padding: 0.5rem 0.875rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--armex-navy);
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}

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

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--armex-navy);
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
}

.mobile-menu {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 85vw);
  height: 100vh;
  background: var(--armex-white);
  box-shadow: -8px 0 32px rgba(43, 45, 66, 0.12);
  z-index: 200;
  transform: translateX(100%);
  transition: transform var(--transition);
  padding: 1.5rem;
  overflow-y: auto;
}

.mobile-menu.is-open {
  transform: translateX(0);
}

.mobile-menu__overlay {
  position: fixed;
  inset: 0;
  background: rgba(43, 45, 66, 0.4);
  z-index: 199;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.mobile-menu__overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2rem;
}

.mobile-menu__close {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  color: var(--armex-navy);
}

.mobile-menu__nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.mobile-menu__link {
  display: block;
  padding: 0.875rem 1rem;
  font-size: 1rem;
  font-weight: 500;
  color: var(--armex-navy);
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
}

.mobile-menu__link:hover,
.mobile-menu__link.is-active {
  background: var(--armex-light);
  color: var(--armex-red);
}

.mobile-menu__cta {
  margin-top: 1.5rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--armex-red);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--armex-red);
  color: var(--armex-white);
}

.btn--primary:hover {
  background: #b8002d;
  transform: translateY(-1px);
}

.btn--secondary {
  background: transparent;
  color: var(--armex-navy);
  border: 2px solid var(--armex-border);
}

.btn--secondary:hover {
  border-color: var(--armex-navy);
}

.btn--white {
  background: var(--armex-white);
  color: var(--armex-navy);
}

.btn--white:hover {
  background: var(--armex-light);
}

.btn--outline-white {
  background: transparent;
  color: var(--armex-white);
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn--outline-white:hover {
  border-color: var(--armex-white);
  background: rgba(255, 255, 255, 0.08);
}

.btn--sm {
  min-height: 40px;
  padding: 0.5rem 1.25rem;
  font-size: 0.875rem;
}

/* Footer */
.site-footer {
  background: var(--armex-navy);
  color: rgba(255, 255, 255, 0.8);
  padding-block: 4rem 2rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.site-footer__logo img {
  height: 32px;
  margin-bottom: 1.25rem;
}

.site-footer__desc {
  font-size: 0.875rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
}

.site-footer__title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--armex-white);
  margin-bottom: 1.25rem;
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.site-footer__links a {
  font-size: 0.875rem;
  color: rgba(255, 255, 255, 0.65);
  transition: color var(--transition);
}

.site-footer__links a:hover {
  color: var(--armex-white);
}

.site-footer__bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(255, 255, 255, 0.5);
}

/* Breadcrumb */
.breadcrumb {
  padding-block: 1rem;
  font-size: 0.8125rem;
  color: var(--armex-muted);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
}

.breadcrumb__item:not(:last-child)::after {
  content: "/";
  margin-right: 0.5rem;
  color: var(--armex-border);
}

.breadcrumb a {
  color: var(--armex-muted);
  transition: color var(--transition);
}

.breadcrumb a:hover {
  color: var(--armex-red);
}

.breadcrumb__current {
  color: var(--armex-text);
}

/* Hero */
.hero {
  padding-block: 4rem 5rem;
  overflow: hidden;
}

.hero__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.hero__eyebrow {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--armex-red);
  margin-bottom: 1rem;
}

.hero__title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 800;
  color: var(--armex-navy);
  line-height: 1.35;
  margin-bottom: 1.25rem;
}

.hero__desc {
  font-size: 1.0625rem;
  color: var(--armex-muted);
  line-height: 1.8;
  margin-bottom: 2rem;
  max-width: 520px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero__image-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero__glow {
  position: absolute;
  width: 80%;
  height: 80%;
  background: radial-gradient(circle, rgba(216, 0, 51, 0.12) 0%, transparent 70%);
  border-radius: 50%;
  z-index: 0;
}

.hero__image {
  position: relative;
  z-index: 1;
  border-radius: var(--radius);
  animation: heroFloat 6s ease-in-out infinite;
}

@keyframes heroFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* Product Card */
.product-card {
  background: var(--armex-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 16px 48px rgba(43, 45, 66, 0.12);
}

.product-card__image {
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--armex-light);
}

.product-card__image img,
.product-card__image .img-placeholder {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
  aspect-ratio: unset;
}

.product-card__body {
  padding: 1.5rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.product-card__model {
  font-family: var(--font-brand);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--armex-navy);
  margin-bottom: 0.25rem;
}

.product-card__subtitle {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--armex-red);
  margin-bottom: 0.75rem;
}

.product-card__text {
  font-size: 0.875rem;
  color: var(--armex-muted);
  line-height: 1.7;
  margin-bottom: 1rem;
  flex: 1;
}

.product-card__features {
  margin-bottom: 1.25rem;
}

.product-card__features li {
  font-size: 0.8125rem;
  color: var(--armex-text);
  padding: 0.25rem 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.product-card__features li::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--armex-red);
  border-radius: 50%;
  flex-shrink: 0;
}

/* Feature Card */
.feature-card {
  background: var(--armex-white);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  box-shadow: var(--shadow);
  transition: transform var(--transition);
}

.feature-card:hover {
  transform: translateY(-2px);
}

.feature-card__icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(216, 0, 51, 0.08);
  border-radius: var(--radius-sm);
  color: var(--armex-red);
}

.feature-card__icon svg {
  width: 24px;
  height: 24px;
}

.feature-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--armex-navy);
  margin-bottom: 0.75rem;
}

.feature-card__text {
  font-size: 0.875rem;
  color: var(--armex-muted);
  line-height: 1.7;
}

/* Quick Select Card */
.select-card {
  background: var(--armex-white);
  border: 1px solid var(--armex-border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  transition: border-color var(--transition), transform var(--transition);
}

.select-card:hover {
  border-color: var(--armex-red);
  transform: translateY(-2px);
}

.select-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--armex-navy);
  margin-bottom: 0.75rem;
}

.select-card__text {
  font-size: 0.875rem;
  color: var(--armex-muted);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

.select-card__model {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-brand);
  font-size: 1rem;
  font-weight: 700;
  color: var(--armex-red);
}

/* Audience Card */
.audience-card {
  background: var(--armex-white);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  text-align: center;
  border: 1px solid var(--armex-border);
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--armex-navy);
  transition: border-color var(--transition), background var(--transition);
}

.audience-card:hover {
  border-color: var(--armex-red);
  background: rgba(216, 0, 51, 0.03);
}

/* CTA Section */
.cta-section {
  text-align: center;
  padding-block: 4rem;
}

.cta-section__title {
  font-size: clamp(1.375rem, 3vw, 1.75rem);
  font-weight: 700;
  margin-bottom: 1rem;
}

.cta-section__desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.75);
  max-width: 600px;
  margin-inline: auto;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.cta-section__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

.cta-section--light .cta-section__desc {
  color: var(--armex-muted);
}

.cta-section--light .cta-section__title {
  color: var(--armex-navy);
}

/* FAQ Accordion */
.faq {
  max-width: 800px;
  margin-inline: auto;
}

.faq__item {
  border-bottom: 1px solid var(--armex-border);
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--armex-navy);
  text-align: right;
  transition: color var(--transition);
}

.faq__question:hover {
  color: var(--armex-red);
}

.faq__question:focus-visible {
  outline: 2px solid var(--armex-red);
  outline-offset: 2px;
  border-radius: 4px;
}

.faq__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  transition: transform var(--transition);
}

.faq__item.is-open .faq__icon {
  transform: rotate(180deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq__answer-inner {
  padding-bottom: 1.25rem;
  font-size: 0.9375rem;
  color: var(--armex-muted);
  line-height: 1.8;
}

.faq__more {
  text-align: center;
  margin-top: 2rem;
}

/* Comparison Table */
.comparison-table-wrap {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin-block: 2rem;
  border-radius: var(--radius);
  border: 1px solid var(--armex-border);
}

.comparison-table {
  min-width: 640px;
}

.comparison-table th,
.comparison-table td {
  padding: 1rem 1.25rem;
  text-align: center;
  font-size: 0.875rem;
  border-bottom: 1px solid var(--armex-border);
}

.comparison-table th {
  background: var(--armex-navy);
  color: var(--armex-white);
  font-weight: 600;
}

.comparison-table th:first-child,
.comparison-table td:first-child {
  text-align: right;
  font-weight: 600;
  color: var(--armex-navy);
  background: var(--armex-light);
}

.comparison-table tr:last-child td {
  border-bottom: none;
}

.comparison-table td {
  color: var(--armex-text);
}

.comparison-cards {
  display: none;
  gap: 1rem;
}

.comparison-card {
  background: var(--armex-white);
  border: 1px solid var(--armex-border);
  border-radius: var(--radius-sm);
  padding: 1.25rem;
}

.comparison-card__title {
  font-family: var(--font-brand);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--armex-navy);
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--armex-red);
}

.comparison-card__row {
  display: flex;
  justify-content: space-between;
  padding: 0.5rem 0;
  font-size: 0.8125rem;
  border-bottom: 1px solid var(--armex-border);
}

.comparison-card__row:last-child {
  border-bottom: none;
}

.comparison-card__label {
  color: var(--armex-muted);
}

.comparison-card__value {
  font-weight: 600;
  color: var(--armex-text);
}

/* Contact Card */
.contact-card {
  background: var(--armex-white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  text-align: center;
  transition: transform var(--transition);
}

.contact-card:hover {
  transform: translateY(-2px);
}

.contact-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(216, 0, 51, 0.08);
  border-radius: 50%;
  color: var(--armex-red);
}

.contact-card__icon svg {
  width: 28px;
  height: 28px;
}

.contact-card__title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--armex-navy);
  margin-bottom: 0.75rem;
}

.contact-card__text {
  font-size: 0.875rem;
  color: var(--armex-muted);
  line-height: 1.7;
  margin-bottom: 1.25rem;
}

/* Forms */
.form {
  max-width: 640px;
}

.form__group {
  margin-bottom: 1.25rem;
}

.form__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--armex-navy);
  margin-bottom: 0.5rem;
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  border: 1px solid var(--armex-border);
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
  color: var(--armex-text);
  background: var(--armex-white);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--armex-red);
  box-shadow: 0 0 0 3px rgba(216, 0, 51, 0.1);
}

.form__textarea {
  min-height: 120px;
  resize: vertical;
}

.form__error {
  display: none;
  font-size: 0.8125rem;
  color: var(--armex-red);
  margin-top: 0.375rem;
}

.form__group.is-invalid .form__error {
  display: block;
}

.form__group.is-invalid .form__input,
.form__group.is-invalid .form__select,
.form__group.is-invalid .form__textarea {
  border-color: var(--armex-red);
}

/* Floating WhatsApp */
.floating-contact {
  position: fixed;
  bottom: 1.5rem;
  left: 1.5rem;
  z-index: 90;
}

.floating-contact__btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  min-height: 48px;
  padding: 0.75rem 1.25rem;
  background: #25D366;
  color: var(--armex-white);
  border-radius: 50px;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  font-size: 0.875rem;
  font-weight: 600;
  transition: transform var(--transition), box-shadow var(--transition);
}

.floating-contact__btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(37, 211, 102, 0.5);
}

.floating-contact__btn:focus-visible {
  outline: 2px solid #25D366;
  outline-offset: 2px;
}

.floating-contact__btn svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
}

/* 404 */
.error-page {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-block: 4rem;
}

.error-page__code {
  font-family: var(--font-brand);
  font-size: 6rem;
  font-weight: 800;
  color: var(--armex-light);
  line-height: 1;
  margin-bottom: 1rem;
}

.error-page__title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--armex-navy);
  margin-bottom: 1rem;
}

.error-page__text {
  color: var(--armex-muted);
  margin-bottom: 2rem;
  max-width: 400px;
  margin-inline: auto;
}

.error-page__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
}

/* Value cards for about */
.value-card {
  background: var(--armex-white);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.value-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--armex-navy);
  margin-bottom: 0.75rem;
}

.value-card p {
  font-size: 0.9375rem;
  color: var(--armex-muted);
  line-height: 1.8;
}

/* Product detail feature */
.product-feature {
  padding: 1.5rem;
  background: var(--armex-light);
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.product-feature h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--armex-navy);
  margin-bottom: 0.5rem;
}

.product-feature p {
  font-size: 0.875rem;
  color: var(--armex-muted);
  line-height: 1.7;
}