/* ============ Navigation ============ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: background-color var(--duration-normal) ease,
              box-shadow var(--duration-normal) ease;
}

.site-header.scrolled {
  background-color: rgba(250, 247, 242, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.05);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-wide);
  margin: 0 auto;
  padding: var(--space-md) var(--gutter);
}

.nav__logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-size: var(--text-sm);
  font-weight: var(--weight-regular);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  color: var(--color-warm-white);
  transition: color var(--duration-fast) ease;
}

.nav__logo-img {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  object-fit: cover;
}

.scrolled .nav__logo {
  color: var(--color-deep-brown);
}

.nav__menu {
  display: none;
  gap: var(--space-xl);
}

@media (min-width: 768px) {
  .nav__menu {
    display: flex;
    align-items: center;
  }
}

.nav__link {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-warm-white);
  position: relative;
  padding: 0.25em 0;
  transition: color var(--duration-fast) ease;
}

.scrolled .nav__link {
  color: var(--color-charcoal);
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 1px;
  background-color: var(--color-gold);
  transition: width var(--duration-normal) var(--ease-out-expo),
              left var(--duration-normal) var(--ease-out-expo);
}

.nav__link:hover::after,
.nav__link.active::after {
  width: 100%;
  left: 0;
}

/* Hamburger Toggle */
.nav__toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  z-index: 1001;
}

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

.nav__toggle-line {
  display: block;
  width: 100%;
  height: 1.5px;
  background-color: var(--color-warm-white);
  transition: transform var(--duration-normal) var(--ease-out-expo),
              opacity var(--duration-fast) ease;
}

.scrolled .nav__toggle-line {
  background-color: var(--color-deep-brown);
}

.menu-open .nav__toggle-line:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.menu-open .nav__toggle-line:nth-child(2) {
  opacity: 0;
}

.menu-open .nav__toggle-line:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

.menu-open .nav__toggle-line {
  background-color: var(--color-warm-white);
}

/* Mobile Menu Overlay */
.nav__menu--mobile {
  position: fixed;
  inset: 0;
  background-color: var(--color-dark-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              visibility var(--duration-slow);
  z-index: 999;
}

.menu-open .nav__menu--mobile {
  opacity: 1;
  visibility: visible;
}

.nav__menu--mobile .nav__link {
  font-size: var(--text-xl);
  color: var(--color-warm-white);
  opacity: 0;
  transform: translateY(20px);
  transition: opacity var(--duration-slow) var(--ease-out-expo),
              transform var(--duration-slow) var(--ease-out-expo);
}

.menu-open .nav__menu--mobile .nav__link {
  opacity: 1;
  transform: translateY(0);
}

.menu-open .nav__menu--mobile .nav__link:nth-child(1) { transition-delay: 100ms; }
.menu-open .nav__menu--mobile .nav__link:nth-child(2) { transition-delay: 150ms; }
.menu-open .nav__menu--mobile .nav__link:nth-child(3) { transition-delay: 200ms; }
.menu-open .nav__menu--mobile .nav__link:nth-child(4) { transition-delay: 250ms; }
.menu-open .nav__menu--mobile .nav__link:nth-child(5) { transition-delay: 300ms; }

/* ============ Buttons ============ */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  padding: 1em 2.5em;
  border: 1px solid var(--color-gold);
  color: var(--color-warm-white);
  background: transparent;
  cursor: pointer;
  transition: background-color var(--duration-normal) var(--ease-out-expo),
              color var(--duration-normal) var(--ease-out-expo);
}

.btn:hover {
  background-color: var(--color-gold);
  color: var(--color-deep-brown);
}

/* ============ Service Card ============ */
.service-card {
  background-color: var(--color-warm-white);
  overflow: hidden;
  transition: box-shadow var(--duration-normal) var(--ease-out-expo);
}

.service-card:hover {
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.service-card__image-wrap {
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.service-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.service-card:hover .service-card__image {
  transform: scale(1.06);
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-regular);
  padding: var(--space-md) var(--space-md) var(--space-xs);
}

.service-card__text {
  font-size: var(--text-sm);
  color: var(--color-taupe);
  padding: 0 var(--space-md);
  line-height: var(--leading-relaxed);
}

.service-card__link {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-gold);
  padding: var(--space-md);
  transition: letter-spacing var(--duration-normal) var(--ease-out-expo);
}

.service-card:hover .service-card__link {
  letter-spacing: var(--tracking-widest);
}

/* ============ Portfolio Item ============ */
.portfolio__item {
  position: relative;
  overflow: hidden;
  display: block;
  cursor: pointer;
}

.portfolio__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--duration-slow) var(--ease-out-expo);
}

.portfolio__item:hover img {
  transform: scale(1.05);
}

.portfolio__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26, 22, 19, 0.9) 0%, transparent 60%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: var(--space-md);
  opacity: 0;
  transition: opacity var(--duration-normal) var(--ease-out-expo);
}

.portfolio__item:hover .portfolio__overlay {
  opacity: 1;
}

.portfolio__category {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-gold);
  margin-bottom: 0.25rem;
  transform: translateY(10px);
  transition: transform var(--duration-normal) var(--ease-out-expo);
}

.portfolio__item:hover .portfolio__category {
  transform: translateY(0);
}

.portfolio__name {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: var(--weight-regular);
  color: var(--color-warm-white);
  transform: translateY(10px);
  transition: transform var(--duration-normal) var(--ease-out-expo) 50ms;
}

.portfolio__item:hover .portfolio__name {
  transform: translateY(0);
}

/* ============ Process Step ============ */
.process__step {
  text-align: center;
  position: relative;
}

.process__number {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-light);
  color: var(--color-gold);
  width: 56px;
  height: 56px;
  border: 1px solid var(--color-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-md);
  background-color: var(--color-cream);
  position: relative;
  z-index: 1;
}

.process__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  margin-bottom: var(--space-xs);
}

.process__text {
  font-size: var(--text-sm);
  color: var(--color-taupe);
  line-height: var(--leading-relaxed);
  max-width: 280px;
  margin: 0 auto;
}

/* ============ Testimonials Carousel ============ */
.testimonials__slides {
  position: relative;
  min-height: 320px;
}

.testimonial {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  opacity: 0;
  transition: opacity var(--duration-slow) var(--ease-out-expo);
  pointer-events: none;
}

#testimonial-1:checked ~ .testimonials__slides .testimonial:nth-child(1),
#testimonial-2:checked ~ .testimonials__slides .testimonial:nth-child(2),
#testimonial-3:checked ~ .testimonials__slides .testimonial:nth-child(3) {
  opacity: 1;
  pointer-events: auto;
}

.testimonial__quote-mark {
  font-family: var(--font-heading);
  font-size: clamp(4rem, 3rem + 5vw, 8rem);
  line-height: 0.8;
  color: var(--color-gold);
  opacity: 0.3;
  margin-bottom: var(--space-sm);
}

.testimonial__text {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: var(--weight-light);
  font-style: italic;
  line-height: var(--leading-snug);
  color: var(--color-charcoal);
  max-width: 700px;
  margin-bottom: var(--space-lg);
}

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

.testimonial__name {
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  font-style: normal;
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.testimonial__project {
  font-size: var(--text-xs);
  color: var(--color-taupe);
}

.testimonial__stars {
  display: flex;
  gap: 2px;
  justify-content: center;
  margin-top: var(--space-xs);
}

.testimonials__dots {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  margin-top: var(--space-lg);
}

.testimonials__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--color-sand);
  cursor: pointer;
  transition: background-color var(--duration-fast) ease,
              transform var(--duration-fast) ease;
}

.testimonials__dot:hover {
  background-color: var(--color-taupe);
  transform: scale(1.2);
}

#testimonial-1:checked ~ .testimonials__dots .testimonials__dot:nth-child(1),
#testimonial-2:checked ~ .testimonials__dots .testimonials__dot:nth-child(2),
#testimonial-3:checked ~ .testimonials__dots .testimonials__dot:nth-child(3) {
  background-color: var(--color-gold);
  transform: scale(1.2);
}

/* ============ Contact Form ============ */
.contact__description {
  margin-bottom: var(--space-xl);
  font-size: var(--text-lg);
  color: var(--color-sand);
  line-height: var(--leading-relaxed);
}

.contact__details {
  font-style: normal;
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-xl);
}

.contact__detail {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-sand);
  font-size: var(--text-sm);
}

.contact__detail a {
  transition: color var(--duration-fast) ease;
}

.contact__detail a:hover {
  color: var(--color-gold);
}

.contact__social {
  display: flex;
  gap: var(--space-md);
}

.contact__social-link {
  color: var(--color-sand);
  transition: color var(--duration-fast) ease,
              transform var(--duration-fast) ease;
}

.contact__social-link:hover {
  color: var(--color-gold);
  transform: translateY(-2px);
}

.contact__form {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form__label {
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-taupe);
}

.form__optional {
  text-transform: none;
  letter-spacing: normal;
  color: var(--color-taupe);
  opacity: 0.7;
}

.form__input {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--color-taupe);
  padding: 0.75rem 0;
  font-size: var(--text-base);
  color: var(--color-warm-white);
  transition: border-color var(--duration-fast) ease;
  outline: none;
}

.form__input::placeholder {
  color: rgba(184, 169, 154, 0.5);
}

.form__input:focus {
  border-bottom-color: var(--color-gold);
}

.form__select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1L6 6L11 1' stroke='%23B8A99A' stroke-width='1.5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0 center;
  cursor: pointer;
}

.form__select option {
  background-color: var(--color-dark-bg);
  color: var(--color-warm-white);
}

.form__textarea {
  resize: vertical;
  min-height: 100px;
}

.form__submit {
  margin-top: var(--space-sm);
  padding: 1.1em 2.5em;
  background-color: var(--color-gold);
  color: var(--color-deep-brown);
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: var(--weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-widest);
  border: 1px solid var(--color-gold);
  cursor: pointer;
  transition: background-color var(--duration-normal) var(--ease-out-expo),
              color var(--duration-normal) var(--ease-out-expo),
              letter-spacing var(--duration-normal) var(--ease-out-expo);
}

.form__submit:hover {
  background-color: transparent;
  color: var(--color-gold);
  letter-spacing: 0.25em;
}

.form__submit:focus-visible {
  outline: 2px solid var(--color-gold);
  outline-offset: 3px;
}

/* ============ Lightbox ============ */
.lightbox {
  position: fixed;
  inset: 0;
  background-color: var(--color-overlay);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-normal) var(--ease-out-expo),
              visibility var(--duration-normal);
}

.lightbox.active {
  opacity: 1;
  visibility: visible;
}

.lightbox__content {
  position: relative;
  max-width: 90vw;
  max-height: 85vh;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.lightbox__image {
  max-width: 90vw;
  max-height: 80vh;
  object-fit: contain;
  opacity: 0;
  transform: scale(0.95);
  transition: opacity var(--duration-normal) var(--ease-out-expo),
              transform var(--duration-normal) var(--ease-out-expo);
}

.lightbox.active .lightbox__image {
  opacity: 1;
  transform: scale(1);
}

.lightbox__caption {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  color: var(--color-warm-white);
  margin-top: var(--space-sm);
  text-align: center;
}

.lightbox__counter {
  font-size: var(--text-xs);
  color: var(--color-taupe);
  letter-spacing: var(--tracking-wider);
  margin-top: 0.25rem;
}

.lightbox__close {
  position: absolute;
  top: var(--space-md);
  right: var(--space-md);
  font-size: 2rem;
  color: var(--color-warm-white);
  z-index: 2001;
  transition: color var(--duration-fast) ease,
              transform var(--duration-fast) ease;
  line-height: 1;
}

.lightbox__close:hover {
  color: var(--color-gold);
  transform: rotate(90deg);
}

.lightbox__prev,
.lightbox__next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-warm-white);
  z-index: 2001;
  padding: var(--space-sm);
  transition: color var(--duration-fast) ease;
}

.lightbox__prev:hover,
.lightbox__next:hover {
  color: var(--color-gold);
}

.lightbox__prev {
  left: var(--space-sm);
}

.lightbox__next {
  right: var(--space-sm);
}