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

/* ---- Navbar ---- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background-color: var(--color-bg-primary);
  z-index: var(--z-nav);
  transition: height var(--transition-medium),
              box-shadow var(--transition-medium),
              background-color var(--transition-medium);
}

.navbar--scrolled {
  height: var(--nav-height-scrolled);
  box-shadow: var(--shadow-nav);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

.navbar__logo {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: var(--fw-bold);
  color: var(--color-text-heading);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  z-index: calc(var(--z-nav) + 1);
}

.navbar__logo img {
  height: 52px;
  width: auto;
  transition: filter var(--transition-fast), height var(--transition-medium);
}

.navbar--scrolled .navbar__logo img {
  height: 42px;
}

[data-theme="dark"] .navbar__logo img {
  filter: invert(1) brightness(2);
}

.navbar__logo span {
  font-weight: var(--fw-light);
  font-size: 0.7em;
  color: var(--color-text-muted);
  display: block;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-top: -2px;
}

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

.navbar__link {
  font-family: var(--font-heading);
  font-size: var(--fs-nav);
  font-weight: var(--fw-regular);
  color: var(--color-text-primary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  position: relative;
  padding: var(--space-xs) 0;
}

.navbar__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background-color: var(--color-text-heading);
  transition: width var(--transition-medium);
}

.navbar__link:hover::after,
.navbar__link--active::after {
  width: 100%;
}

.navbar__link:hover {
  color: var(--color-text-heading);
}

/* Hamburger */
.navbar__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 28px;
  height: 28px;
  z-index: calc(var(--z-nav) + 1);
}

.navbar__toggle span {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-text-heading);
  transition: transform var(--transition-medium), opacity var(--transition-fast);
}

body.nav-open .navbar__toggle span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

body.nav-open .navbar__toggle span:nth-child(2) {
  opacity: 0;
}

body.nav-open .navbar__toggle span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: var(--fw-regular);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.85em 2em;
  border: 1px solid transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.btn--primary {
  background-color: var(--color-text-heading);
  color: var(--color-text-white);
  border-color: var(--color-text-heading);
}

.btn--primary:hover {
  background-color: transparent;
  color: var(--color-text-heading);
}

.btn--outline {
  background-color: transparent;
  color: var(--color-text-heading);
  border-color: var(--color-text-heading);
}

.btn--outline:hover {
  background-color: var(--color-text-heading);
  color: var(--color-text-white);
}

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

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

.btn--link {
  padding: 0;
  border: none;
  font-size: var(--fs-small);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  position: relative;
}

.btn--link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 1px;
  background-color: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--transition-medium);
}

.btn--link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

/* Arrow icon in buttons */
.btn__arrow {
  width: 16px;
  height: 16px;
  transition: transform var(--transition-fast);
}

.btn:hover .btn__arrow {
  transform: translateX(4px);
}

/* ---- Projects Masonry Grid ---- */
.projects-masonry {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

/* ---- Project Cards ---- */
.project-card {
  position: relative;
}

.project-card__link {
  display: block;
  text-decoration: none;
  color: inherit;
}

.project-card__image {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
  margin-bottom: var(--space-sm);
}

.project-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  display: block;
}

.project-card__overlay {
  display: none;
}

.project-card__info {
  padding: 0 2px;
}

.project-card__category {
  display: block;
  font-size: var(--fs-caption);
  font-weight: var(--fw-regular);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 4px;
}

.project-card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: var(--fw-regular);
  color: var(--color-text-heading);
  line-height: 1.3;
  transition: color 0.3s ease;
}

.project-card__arrow {
  display: none;
}

/* Hover state */
.project-card:hover .project-card__image img {
  transform: scale(1.04);
}

.project-card:hover .project-card__title {
  color: var(--color-accent);
}

@media (max-width: 1024px) {
  .projects-masonry {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-lg);
  }
}

@media (max-width: 640px) {
  .projects-masonry {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }

  .project-card__image {
    aspect-ratio: 3 / 2;
  }
}

/* ---- Service Cards ---- */
.service-card {
  padding: var(--space-xl) var(--space-lg);
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-medium), transform var(--transition-medium);
}

.service-card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  margin-bottom: var(--space-md);
  color: var(--color-accent);
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: var(--fs-h4);
  font-weight: var(--fw-regular);
  color: var(--color-text-heading);
  margin-bottom: var(--space-sm);
}

.service-card__text {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
}

/* ---- Category Badge / Filter ---- */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs);
  margin-bottom: var(--space-2xl);
}

.filter-btn {
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: var(--fw-regular);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.6em 1.4em;
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
  background: transparent;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.filter-btn:hover,
.filter-btn--active {
  color: var(--color-text-heading);
  border-color: var(--color-text-heading);
}

/* ---- Footer ---- */
.footer {
  background-color: var(--color-bg-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: var(--space-3xl) 0 var(--space-lg);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
}

.footer__brand {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: var(--fw-bold);
  color: var(--color-text-white);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

.footer__brand span {
  display: block;
  font-size: 0.65em;
  font-weight: var(--fw-light);
  letter-spacing: 0.15em;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 2px;
}

.footer__desc {
  font-size: var(--fs-small);
  line-height: var(--lh-relaxed);
  max-width: 320px;
}

.footer__heading {
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: var(--fw-bold);
  color: var(--color-text-white);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
}

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

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

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

.footer__contact-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-xs);
  font-size: var(--fs-small);
  margin-bottom: var(--space-sm);
}

.footer__contact-item svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  margin-top: 3px;
  opacity: 0.6;
}

.footer__social {
  display: flex;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.footer__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 50%;
  transition: all var(--transition-fast);
}

.footer__social a:hover {
  border-color: var(--color-text-white);
  background-color: rgba(255, 255, 255, 0.1);
}

.footer__social svg {
  width: 16px;
  height: 16px;
  fill: rgba(255, 255, 255, 0.7);
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--space-lg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: var(--fs-caption);
  color: rgba(255, 255, 255, 0.4);
}

.footer__bottom a {
  color: rgba(255, 255, 255, 0.4);
}

.footer__bottom a:hover {
  color: rgba(255, 255, 255, 0.7);
}

/* ---- WhatsApp Button ---- */
.whatsapp-btn {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 56px;
  height: 56px;
  background-color: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(37, 211, 102, 0.4);
  z-index: var(--z-whatsapp);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.whatsapp-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.whatsapp-btn svg {
  width: 28px;
  height: 28px;
  fill: #ffffff;
}

/* WhatsApp Chat Widget */
.whatsapp-widget {
  position: fixed;
  bottom: 90px;
  right: 24px;
  width: 320px;
  background: #fff;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
  z-index: var(--z-whatsapp);
  transform: scale(0.8) translateY(20px);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s ease;
  overflow: hidden;
}

.whatsapp-widget.is-open {
  transform: scale(1) translateY(0);
  opacity: 1;
  visibility: visible;
}

.whatsapp-widget__header {
  background-color: #075e54;
  color: #fff;
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.whatsapp-widget__avatar {
  width: 40px;
  height: 40px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.whatsapp-widget__avatar svg {
  width: 22px;
  height: 22px;
  fill: #fff;
}

.whatsapp-widget__info h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 2px;
}

.whatsapp-widget__info span {
  font-size: 0.75rem;
  opacity: 0.8;
}

.whatsapp-widget__close {
  margin-left: auto;
  background: none;
  border: none;
  color: #fff;
  cursor: pointer;
  font-size: 1.2rem;
  opacity: 0.7;
}

.whatsapp-widget__close:hover { opacity: 1; }

.whatsapp-widget__body {
  padding: 16px;
  background: #e5ddd5;
}

.whatsapp-widget__msg {
  background: #fff;
  padding: 10px 14px;
  border-radius: 0 8px 8px 8px;
  font-size: 0.85rem;
  line-height: 1.5;
  color: #333;
  max-width: 85%;
  box-shadow: 0 1px 2px rgba(0,0,0,0.1);
}

.whatsapp-widget__msg span {
  display: block;
  font-size: 0.7rem;
  color: #999;
  margin-top: 4px;
  text-align: right;
}

.whatsapp-widget__footer {
  padding: 12px 16px;
}

.whatsapp-widget__send {
  display: block;
  width: 100%;
  padding: 10px;
  background: #25d366;
  color: #fff;
  border: none;
  border-radius: 6px;
  font-size: 0.85rem;
  font-family: var(--font-body);
  cursor: pointer;
  text-align: center;
  text-decoration: none;
  transition: background 0.2s;
}

.whatsapp-widget__send:hover {
  background: #20bd5a;
  color: #fff;
}

/* ---- CTA Banner ---- */
.cta-banner {
  background-color: var(--color-bg-dark);
  padding: var(--space-3xl) 0;
  text-align: center;
}

.cta-banner__title {
  font-size: var(--fs-h2);
  font-weight: var(--fw-light);
  color: var(--color-text-white);
  margin-bottom: var(--space-md);
}

.cta-banner__text {
  color: rgba(255, 255, 255, 0.6);
  margin-bottom: var(--space-xl);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ---- Form ---- */
.form-group {
  margin-bottom: var(--space-md);
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--fs-small);
  font-weight: var(--fw-regular);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-xs);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.8em 1em;
  font-size: var(--fs-body);
  border: 1px solid var(--color-border);
  background-color: var(--color-bg-primary);
  transition: border-color var(--transition-fast);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-text-heading);
}

.form-textarea {
  min-height: 150px;
  resize: vertical;
}

.form-error {
  font-size: var(--fs-caption);
  color: var(--color-accent-red);
  margin-top: var(--space-2xs);
  display: none;
}

.form-group--error .form-input,
.form-group--error .form-textarea {
  border-color: var(--color-accent-red);
}

.form-group--error .form-error {
  display: block;
}

/* ---- Spec Table (Project Detail) ---- */
.spec-table {
  width: 100%;
}

.spec-table tr {
  border-bottom: 1px solid var(--color-border-light);
}

.spec-table td {
  padding: var(--space-sm) 0;
  font-size: var(--fs-small);
}

.spec-table td:first-child {
  font-family: var(--font-heading);
  font-weight: var(--fw-regular);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  width: 40%;
}

/* ---- About Section (Homepage teaser) ---- */
.about-teaser {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: center;
}

.about-teaser__image {
  width: 100%;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.about-teaser__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ---- References / Partners ---- */
.references-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.reference-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-primary);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.reference-item:hover {
  border-color: var(--color-text-primary);
  box-shadow: 0 4px 16px rgba(0,0,0,0.08);
}

.reference-item__icon {
  width: 100%;
  height: 48px;
  color: var(--color-text-secondary);
  transition: color var(--transition-fast);
}

.reference-item:hover .reference-item__icon {
  color: var(--color-text-primary);
}

.reference-item__name {
  font-size: var(--font-size-xs);
  color: var(--color-text-secondary);
  text-align: center;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

@media (max-width: 768px) {
  .references-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .references-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ---- Certs / Certifications ---- */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
  margin-top: var(--space-xl);
}

.cert-card {
  padding: var(--space-xl) var(--space-lg);
  border: 1px solid var(--color-border);
  background: var(--color-bg-primary);
  text-align: center;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.cert-card:hover {
  border-color: var(--color-text-primary);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
}

.cert-card__icon {
  width: 56px;
  height: 56px;
  margin: 0 auto var(--space-md);
  color: var(--color-text-secondary);
}

.cert-card__icon svg {
  width: 100%;
  height: 100%;
}

.cert-card:hover .cert-card__icon {
  color: var(--color-text-primary);
}

.cert-card__title {
  font-size: var(--font-size-sm);
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.cert-card__text {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: 1.6;
}

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

@media (max-width: 480px) {
  .certs-grid {
    grid-template-columns: 1fr;
  }
}

/* ---- WhatsApp Template Buttons ---- */
.whatsapp-widget__templates {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.whatsapp-template {
  display: block;
  padding: 8px 12px;
  background: #f0f4f0;
  border: 1px solid #d0e8d0;
  border-radius: 18px;
  font-size: 13px;
  color: #1a1a1a;
  text-decoration: none;
  transition: background 0.2s, border-color 0.2s;
}

.whatsapp-template:hover {
  background: #dcf8c6;
  border-color: #25d366;
}

[data-theme="dark"] .whatsapp-template {
  background: #2a3a2a;
  border-color: #3a5a3a;
  color: #e0e0e0;
}

[data-theme="dark"] .whatsapp-template:hover {
  background: #1e3a1e;
  border-color: #25d366;
}

/* ---- Scroll Progress Bar ---- */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 0%;
  height: 2px;
  background: var(--color-text-primary);
  z-index: calc(var(--z-nav) + 1);
  transition: width 0.1s linear;
  transform-origin: left;
}

/* ---- Project Share Buttons ---- */
.project-share {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
  flex-wrap: wrap;
}

.project-share__label {
  font-size: var(--font-size-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-secondary);
}

.project-share__btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  font-size: var(--font-size-sm);
  border: 1px solid var(--color-border);
  background: transparent;
  cursor: pointer;
  text-decoration: none;
  color: var(--color-text-primary);
  transition: background var(--transition-fast), border-color var(--transition-fast);
  font-family: inherit;
}

.project-share__btn:hover {
  background: var(--color-bg-secondary);
}

.project-share__btn--whatsapp:hover {
  border-color: #25d366;
  color: #25d366;
}

/* ---- Thank You Popup ---- */
.thankyou-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.3s ease;
}

.thankyou-overlay.is-visible {
  opacity: 1;
}

.thankyou-popup {
  background: var(--color-bg-primary);
  padding: var(--space-2xl);
  max-width: 480px;
  width: 90%;
  text-align: center;
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.thankyou-overlay.is-visible .thankyou-popup {
  transform: translateY(0);
}

.thankyou-popup__icon {
  width: 64px;
  height: 64px;
  color: var(--color-text-primary);
  margin: 0 auto var(--space-lg);
}

.thankyou-popup__title {
  font-size: var(--font-size-xl);
  margin-bottom: var(--space-md);
}

.thankyou-popup__text {
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.thankyou-popup__close {
  margin: 0 auto;
}

/* ── Project Gallery ── */
.project-gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-md);
}

.project-gallery__item {
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--color-surface);
}

.project-gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.project-gallery__item:hover img {
  transform: scale(1.04);
}

.project-gallery__item:first-child {
  grid-column: 1 / -1;
  aspect-ratio: 16/9;
}

@media (max-width: 600px) {
  .project-gallery {
    grid-template-columns: 1fr;
  }
  .project-gallery__item:first-child {
    grid-column: 1;
  }
}