/* ===== Components ===== */

/* ==================== */
/* 1. NAVIGATION BAR   */
/* ==================== */

.nav {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
}

.nav__logo img {
  height: 3.8rem;
  width: auto;
}

.nav__menu {
  display: none;
  position: absolute;
  top: 4.5rem;
  left: 0;
  right: 0;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
  padding: var(--space-4);
  flex-direction: column;
  gap: var(--space-1);
}

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

@media (min-width: 768px) {
  .nav__menu {
    display: flex;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: var(--space-1);
    background: none;
    border: none;
    box-shadow: none;
    padding: 0;
  }
}

.nav__link {
  display: block;
  padding: var(--space-3) var(--space-4);
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text-muted);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.nav__link:hover {
  color: var(--color-text);
  background: var(--color-bg-alt);
}

.nav__link--active {
  color: var(--color-accent);
  background: var(--color-accent-light);
}

.nav__right {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

/* Hamburger button */
.nav__toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  color: var(--color-text);
}

.nav__toggle:hover {
  background: var(--color-bg-alt);
}

.nav__toggle-icon {
  width: 1.25rem;
  height: 1.25rem;
}

@media (min-width: 768px) {
  .nav__toggle {
    display: none;
  }
}

/* ==================== */
/* 2. BUTTONS           */
/* ==================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-5);
  font-size: var(--font-size-sm);
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: background var(--transition-fast), color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
  white-space: nowrap;
  cursor: pointer;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn--primary:hover {
  background: var(--color-accent-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn--outline:hover {
  background: var(--color-accent);
  color: var(--color-text-inverse);
}

.btn--white {
  background: var(--color-text-inverse);
  color: var(--color-text);
}

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

.btn--lg {
  padding: var(--space-4) var(--space-6);
  font-size: var(--font-size-base);
  border-radius: var(--radius-lg);
}

/* ==================== */
/* 3. HERO SECTION      */
/* ==================== */

.hero {
  position: relative;
  min-height: 42vh;
  display: flex;
  align-items: center;
  padding-block: var(--space-8);
  overflow: hidden;
  /* Photo background with blue tint — cover fills the area, gradient blends edges */
  background:
    linear-gradient(180deg, rgba(200, 228, 248, 0.50) 0%, rgba(180, 218, 242, 0.30) 50%, rgba(160, 208, 238, 0.40) 100%),
    url('../images/hero/hero-bg.jpg') center/cover no-repeat;
}

/* No extra overlays needed — the gradient handles text readability */

.hero__inner {
  position: relative;
  z-index: var(--z-base);
  max-width: 48rem;
}

.hero__badge {
  display: inline-block;
  background: var(--color-accent);
  color: var(--color-text-inverse);
  font-size: var(--font-size-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  margin-bottom: var(--space-4);
}

.hero__title {
  font-size: var(--font-size-2xl);
  line-height: 1.15;
  margin-bottom: var(--space-3);
}

.hero__subtitle {
  font-size: var(--font-size-base);
  color: var(--color-text-muted);
  margin-bottom: var(--space-5);
  max-width: 32rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.hero__pattern {
  position: absolute;
  right: -10%;
  top: 50%;
  transform: translateY(-50%);
  width: 40%;
  opacity: 0.15;
  pointer-events: none;
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--font-size-5xl);
  }
}

/* ==================== */
/* 4. ADVANTAGE CARDS   */
/* ==================== */

.advantages {
  padding-block: var(--space-12);
  background: var(--color-bg);
}

.advantage-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.advantage-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.advantage-card__icon {
  width: 3rem;
  height: 3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-accent);
  border-radius: var(--radius-lg);
  margin-bottom: var(--space-4);
  font-size: 1.5rem;
}

.advantage-card__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.advantage-card__desc {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

/* ==================== */
/* 5. SERVICE FLOW      */
/* ==================== */

.service-flow {
  padding-block: var(--space-12);
}

.service-flow__steps {
  display: flex;
  flex-direction: column;
  gap: var(--space-6);
  position: relative;
}

@media (min-width: 768px) {
  .service-flow__steps {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-4);
  }
}

@media (min-width: 1024px) {
  .service-flow__steps {
    grid-template-columns: repeat(6, 1fr);
  }
}

.service-step {
  text-align: center;
  position: relative;
}

.service-step__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  margin: 0 auto var(--space-3);
  background: var(--color-accent);
  color: var(--color-text-inverse);
  font-weight: 700;
  font-size: var(--font-size-lg);
  border-radius: 50%;
  position: relative;
  z-index: var(--z-base);
}

.service-step__title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.service-step__desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

/* Connector line between steps on desktop */
@media (min-width: 1024px) {
  .service-flow__steps::before {
    content: '';
    position: absolute;
    top: 1.5rem;
    left: calc(16.67% / 2);
    right: calc(16.67% / 2);
    height: 2px;
    background: var(--color-primary-dark);
    z-index: 0;
  }
}

/* ==================== */
/* 6. ABOUT US          */
/* ==================== */

.about__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
}

@media (min-width: 768px) {
  .about__content {
    grid-template-columns: 1fr 1fr;
  }
}

.about__text p {
  margin-bottom: var(--space-4);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

.about__highlights {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
}

.about__highlight {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-4);
  text-align: center;
}

.about__highlight-number {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-accent);
  display: block;
}

.about__highlight-label {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

/* Client logos strip */
.about__clients {
  margin-top: var(--space-6);
  padding-top: var(--space-6);
  border-top: 1px solid var(--color-border);
}

.about__clients-title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
  text-align: center;
}

.about__clients-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--space-6);
}

.about__clients-row img {
  height: 2.5rem;
  width: auto;
  opacity: 0.8;
  filter: grayscale(1);
  transition: opacity var(--transition-fast), filter var(--transition-fast);
}

.about__clients-row img:hover {
  opacity: 1;
  filter: grayscale(0);
}

/* ==================== */
/* 7. PAGE HEADER       */
/* ==================== */

.page-header {
  background: linear-gradient(135deg, var(--color-primary-light) 0%, var(--color-primary) 100%);
  padding-block: var(--space-8);
  text-align: center;
}

.page-header__title {
  margin-bottom: var(--space-3);
}

.page-header__subtitle {
  color: var(--color-text-muted);
  font-size: var(--font-size-lg);
  max-width: 32rem;
  margin: 0 auto;
}

/* ==================== */
/* 8. CATEGORY GRID     */
/* ==================== */

.category-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

@media (min-width: 540px) {
  .category-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .category-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.category-card {
  display: block;
  position: relative;
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
  /* Ensure consistent height */
  aspect-ratio: 4 / 3;
}

.category-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.category-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  background: var(--color-bg-alt);
  transition: transform var(--transition-slow);
}

.category-card:hover .category-card__image {
  transform: scale(1.05);
}

.category-card__overlay {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-5);
  /* Gradient: transparent at top, dark at bottom for text readability */
  background: linear-gradient(
    to top,
    rgba(0, 0, 0, 0.75) 0%,
    rgba(0, 0, 0, 0.35) 50%,
    rgba(0, 0, 0, 0.05) 100%
  );
}

.category-card__title {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--space-1);
}

.category-card__desc {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
}

/* ==================== */
/* 9. BACK NAVIGATION   */
/* ==================== */

.back-nav {
  padding-block: var(--space-4);
  border-bottom: 1px solid var(--color-border);
}

.back-nav__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

.back-nav__link:hover {
  color: var(--color-text);
}

/* ==================== */
/* 10. SUBCATEGORY GRID */
/* ==================== */

.subcategory-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
}

.subcategory-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform var(--transition-base);
}

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

.subcategory-card__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: var(--color-bg-alt);
  cursor: pointer;
  transition: transform var(--transition-slow);
}

.subcategory-card__image:hover {
  transform: scale(1.03);
}

.subcategory-card__body {
  padding: var(--space-3) var(--space-3);
}

.subcategory-card__title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  margin-bottom: 2px;
}

.subcategory-card__desc {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
  line-height: 1.4;
}

/* ==================== */
/* 11. DETAIL NOTE      */
/* ==================== */

/* Photo disclaimer above the grid */
.photo-note {
  font-style: italic;
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
  margin: 0 0 var(--space-5);
  padding: var(--space-4) var(--space-5);
  background: var(--color-bg-accent);
  border-radius: var(--radius-md);
}

.detail-note {
  background: var(--color-bg-accent);
  border-left: 4px solid var(--color-primary-dark);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: var(--space-4) var(--space-5);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
}

/* ==================== */
/* 12. CONTACT FORM     */
/* ==================== */

.contact {
  padding-block: var(--space-12);
  background: var(--color-bg-alt);
}

.contact__wrapper {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
  align-items: start;
}

@media (min-width: 768px) {
  .contact__wrapper {
    grid-template-columns: 1fr 1fr;
  }
}

.contact__info-title {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-4);
}

.contact__info-text {
  color: var(--color-text-muted);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--space-4);
}

.contact__info-detail {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

.contact__info-detail svg {
  flex-shrink: 0;
  color: var(--color-accent);
}

/* Form styles */
.contact-form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.form-group {
  margin-bottom: var(--space-4);
}

.form-label {
  display: block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  margin-bottom: var(--space-1);
  color: var(--color-text);
}

.form-label--required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm);
  background: var(--color-bg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(245, 130, 32, 0.15);
  outline: none;
}

.form-input.is-error,
.form-select.is-error,
.form-textarea.is-error {
  border-color: var(--color-error);
}

.form-error {
  display: none;
  font-size: var(--font-size-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

.form-error.is-visible {
  display: block;
}

.form-textarea {
  min-height: 8rem;
  resize: vertical;
}

/* Success message */
.form-success {
  display: none;
  text-align: center;
  padding: var(--space-8) var(--space-4);
}

.form-success.is-visible {
  display: block;
}

.form-success__icon {
  width: 4rem;
  height: 4rem;
  margin: 0 auto var(--space-4);
  background: var(--color-success);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
}

.form-success__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.form-success__text {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
}

/* Mailto fallback */
.form-mailto {
  text-align: center;
  padding-top: var(--space-4);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-4);
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

/* ==================== */
/* 13. BRAND BANNER     */
/* ==================== */

.brand-banner {
  background: var(--color-accent);
  color: var(--color-text-inverse);
  padding-block: var(--space-3);
  text-align: center;
  overflow: hidden;
  position: relative;
}

.brand-banner__text {
  font-size: var(--font-size-base);
  font-weight: 600;
  max-width: 56rem;
  margin: 0 auto;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (min-width: 768px) {
  .brand-banner__text {
    font-size: var(--font-size-lg);
  }
}

/* ==================== */
/* 14. CONTACT CTA      */
/* ==================== */

.contact-cta {
  background: var(--color-bg-accent);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  text-align: center;
}

.contact-cta__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-2);
}

.contact-cta__text {
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  margin-bottom: var(--space-5);
  max-width: 28rem;
  margin-left: auto;
  margin-right: auto;
}

/* ==================== */
/* 15. FOOTER           */
/* ==================== */

.site-footer {
  background: var(--color-text);
  color: rgba(255, 255, 255, 0.7);
  padding-block: var(--space-10);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-8);
}

@media (min-width: 768px) {
  .site-footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.site-footer__brand-name {
  color: var(--color-text-inverse);
  font-size: var(--font-size-lg);
  font-weight: 700;
  margin-bottom: var(--space-3);
}

.site-footer__desc {
  font-size: var(--font-size-sm);
  line-height: var(--line-height-relaxed);
  max-width: 24rem;
}

.site-footer__heading {
  color: var(--color-text-inverse);
  font-size: var(--font-size-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-4);
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.footer__link {
  font-size: var(--font-size-sm);
  color: rgba(255, 255, 255, 0.6);
  transition: color var(--transition-fast);
}

.footer__link:hover {
  color: var(--color-text-inverse);
}

.site-footer__bottom {
  margin-top: var(--space-8);
  padding-top: var(--space-5);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  align-items: center;
  font-size: var(--font-size-xs);
}

@media (min-width: 768px) {
  .site-footer__bottom {
    flex-direction: row;
    justify-content: space-between;
  }
}

/* ==================== */
/* 16. LANGUAGE SWITCHER*/
/* ==================== */

.lang-switcher {
  display: flex;
  gap: 2px;
}

.lang-switcher__btn {
  padding: var(--space-1) var(--space-2);
  font-size: var(--font-size-xs);
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.lang-switcher__btn:hover {
  color: var(--color-text);
  background: var(--color-bg-alt);
}

.lang-switcher__btn--active {
  color: var(--color-accent);
  background: var(--color-accent-light);
  font-weight: 700;
}

/* Footer language switcher uses white-on-dark colors */
.site-footer .lang-switcher__btn {
  color: rgba(255, 255, 255, 0.5);
}

.site-footer .lang-switcher__btn:hover {
  color: var(--color-text-inverse);
  background: rgba(255, 255, 255, 0.1);
}

.site-footer .lang-switcher__btn--active {
  color: var(--color-accent);
  background: rgba(245, 130, 32, 0.2);
}

/* ==================== */
/* 17. PDF LIST ITEMS   */
/* ==================== */

.pdf-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.pdf-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: box-shadow var(--transition-fast), border-color var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  color: inherit;
}

.pdf-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: var(--color-primary-dark);
}

.pdf-item__icon {
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #fef0f0;
  border-radius: var(--radius-md);
  color: #d32f2f;
  font-weight: 700;
  font-size: var(--font-size-sm);
  flex-shrink: 0;
}

.pdf-item__info {
  flex: 1;
  min-width: 0;
  overflow: hidden;
}

.pdf-item__title {
  font-weight: 600;
  font-size: var(--font-size-base);
  color: var(--color-text);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pdf-item__meta {
  font-size: var(--font-size-xs);
  color: var(--color-text-muted);
}

.pdf-item__btn {
  flex-shrink: 0;
  font-size: var(--font-size-sm);
}

.pdf-empty {
  text-align: center;
  padding: var(--space-10);
  color: var(--color-text-muted);
}

/* ==================== */
/* 18. IMAGE MODAL      */
/* ==================== */

.modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--z-modal);
  background: rgba(0, 0, 0, 0.85);
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
}

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

.modal__image {
  max-width: 90vw;
  max-height: 85vh;
  object-fit: contain;
  border-radius: var(--radius-md);
}

.modal__close {
  position: absolute;
  top: var(--space-4);
  right: var(--space-4);
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255, 255, 255, 0.15);
  color: white;
  border-radius: 50%;
  font-size: var(--font-size-xl);
  transition: background var(--transition-fast);
}

.modal__close:hover {
  background: rgba(255, 255, 255, 0.3);
}