/* === sections.css === */

/* --- Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border-light);
  height: var(--header-height);
}

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

.header__logo {
  font-size: var(--font-size-base);
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
}

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

.header__nav a {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  transition: color var(--transition);
}

.header__nav a:hover {
  color: var(--color-text);
}

.header__cta {
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: #fff;
  background-color: var(--color-accent);
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color var(--transition);
  white-space: nowrap;
}

.header__cta:hover {
  background-color: var(--color-accent-hover);
  color: #fff;
}

.burger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--space-xs);
}

.burger__line {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  margin: 5px 0;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.burger--open .burger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger--open .burger__line:nth-child(2) {
  opacity: 0;
}

.burger--open .burger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Hero --- */
.hero {
  padding-block: var(--space-3xl) var(--space-4xl);
  background-color: var(--color-bg);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.hero__content {
  order: 1;
}

.hero__tag {
  display: inline-block;
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--color-tag-text);
  background-color: var(--color-tag-bg);
  padding: var(--space-xs) var(--space-sm);
  border-radius: var(--radius-sm);
  margin-bottom: var(--space-md);
}

.hero__title {
  font-size: var(--font-size-3xl);
  margin-bottom: var(--space-sm);
}

.hero__price {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-lg);
}

.hero__address {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-lg);
}

.hero__params {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-sm) var(--space-lg);
  margin-bottom: var(--space-xl);
}

.hero__param {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.hero__param strong {
  color: var(--color-text);
  font-weight: 600;
}

.hero__cta-group {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
  margin-bottom: var(--space-lg);
}

.hero__trust {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border-light);
  padding-top: var(--space-md);
}

.hero__realtor-note {
  grid-column: 1 / -1;
  order: 3;
  margin-top: var(--space-lg);
  padding: var(--space-md);
  background-color: var(--color-accent-light);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
}

.hero__realtor-note strong {
  display: block;
  margin-bottom: var(--space-xs);
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

.hero__realtor-note p {
  margin: 0;
  font-size: var(--font-size-sm);
  line-height: 1.55;
  color: var(--color-text-secondary);
}

.hero__photos {
  order: 2;
}

.hero__photo-main {
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: var(--space-sm);
  box-shadow: var(--shadow-md);
}

.hero__photo-main img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

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

.hero__thumb {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.hero__thumb img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform var(--transition);
}

.hero__thumb img:hover {
  transform: scale(1.03);
}

/* --- Advantages --- */
.advantages__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--space-lg);
}

.advantage-card {
  padding: var(--space-xl);
  background-color: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
}

.advantage-card__number {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-accent);
  margin-bottom: var(--space-sm);
}

.advantage-card__title {
  font-size: var(--font-size-base);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

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

/* --- Apartment Details --- */
.details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}

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

.stat-card {
  padding: var(--space-lg);
  background-color: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  text-align: center;
}

.stat-card__value {
  font-size: var(--font-size-xl);
  font-weight: 600;
  color: var(--color-text);
}

.stat-card__label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.details__table-wrap {
  overflow-x: auto;
}

.details__table {
  width: 100%;
  font-size: var(--font-size-sm);
}

.details__table th {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-bg-alt);
  font-weight: 600;
  color: var(--color-text-secondary);
  border-bottom: 2px solid var(--color-border);
}

.details__table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border-light);
  color: var(--color-text-secondary);
}

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

.plan-placeholder {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-3xl);
  text-align: center;
  color: var(--color-text-muted);
  background-color: var(--color-bg-card);
}

.plan-placeholder__icon {
  font-size: var(--font-size-2xl);
  margin-bottom: var(--space-md);
  opacity: 0.5;
}

.plan-placeholder__text {
  font-size: var(--font-size-sm);
}

/* --- Roof & Tech Floor --- */
.roof__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

.roof__facts {
  list-style: none;
}

.roof__fact {
  padding-block: var(--space-sm);
  border-bottom: 1px solid var(--color-border-light);
  font-size: var(--font-size-base);
}

.roof__fact strong {
  color: var(--color-text);
}

.roof__fact-label {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
}

.roof__highlight {
  padding: var(--space-lg);
  background-color: var(--color-accent-light);
  border-radius: var(--radius-md);
  border-left: 4px solid var(--color-accent);
  margin-top: var(--space-lg);
}

.roof__highlight p {
  font-size: var(--font-size-base);
  color: var(--color-text);
  margin: 0;
}

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

.roof__gallery img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* --- Engineering --- */
.engineering__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
}

.engineering__list {
  display: grid;
  gap: var(--space-md);
}

.engineering__item {
  padding: var(--space-lg);
  background-color: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.engineering__item h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.engineering__item p,
.engineering__item ul {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

.engineering__item li {
  padding-block: 2px;
}

.engineering__item li::before {
  content: '·';
  margin-right: var(--space-sm);
  color: var(--color-accent);
}

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

.engineering__gallery img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* --- Kitchen --- */
.kitchen__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

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

.kitchen__gallery img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* --- Bathroom --- */
.bathroom__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

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

.bathroom__gallery img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* --- Rooms --- */
.room {
  padding-block: var(--space-2xl);
  border-bottom: 1px solid var(--color-border-light);
}

.room:first-child {
  padding-top: 0;
}

.room:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

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

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

.room__gallery img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.room__notice {
  padding: var(--space-md);
  background-color: var(--color-bg-alt);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--color-accent);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  margin-top: var(--space-md);
}

/* --- Building & Area --- */
.area__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-2xl);
  align-items: start;
}

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

.area__gallery img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

/* --- Documents --- */
.documents__list {
  display: grid;
  gap: var(--space-md);
  max-width: 680px;
}

.documents__item {
  padding: var(--space-lg);
  background-color: var(--color-bg-card);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
}

.documents__item h3 {
  font-size: var(--font-size-base);
  margin-bottom: var(--space-xs);
}

.documents__item p {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* --- FAQ --- */
.faq__list {
  max-width: 800px;
}

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

.faq__item summary {
  list-style: none;
}

.faq__item summary::-webkit-details-marker {
  display: none;
}

.faq__question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-size: var(--font-size-base);
  font-weight: 500;
  color: var(--color-text);
  font-family: var(--font-sans);
  line-height: var(--line-height);
}

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

.faq__icon {
  font-size: var(--font-size-lg);
  color: var(--color-text-muted);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq__item[open] .faq__icon {
  transform: rotate(45deg);
}

.faq__answer-inner {
  padding-bottom: var(--space-lg);
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  line-height: var(--line-height);
}

/* --- Contact --- */
.contact {
  background-color: var(--color-bg-alt);
}

.contact__inner {
  max-width: 600px;
  margin-inline: auto;
  text-align: center;
}

.contact__text {
  font-size: var(--font-size-base);
  color: var(--color-text-secondary);
  margin-bottom: var(--space-xl);
}

.contact__methods {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: center;
}

.contact__btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-xl);
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 500;
  border: 1px solid var(--color-border);
  background-color: var(--color-bg-card);
  color: var(--color-text);
  cursor: pointer;
  transition: all var(--transition);
  font-family: var(--font-sans);
}

.contact__btn:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.contact__btn--primary {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  color: #fff;
}

.contact__btn--primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #fff;
}

.contact__note {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xl);
}

/* --- Footer --- */
.footer {
  padding-block: var(--space-xl);
  border-top: 1px solid var(--color-border-light);
  text-align: center;
}

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

.footer__update {
  font-size: var(--font-size-sm);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* --- Mobile sticky CTA --- */
.sticky-cta {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 99;
  padding: var(--space-sm) var(--space-md);
  background-color: var(--color-bg);
  border-top: 1px solid var(--color-border-light);
  box-shadow: 0 -2px 8px rgba(0, 0, 0, 0.06);
}

.sticky-cta a {
  display: block;
  text-align: center;
  padding: var(--space-sm) var(--space-lg);
  background-color: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-md);
  font-size: var(--font-size-base);
  font-weight: 500;
}

.sticky-cta a:hover {
  background-color: var(--color-accent-hover);
  color: #fff;
}

/* --- Image placeholder --- */
.img-placeholder {
  border: 2px dashed var(--color-border);
  border-radius: var(--radius-md);
  aspect-ratio: 4 / 3;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-color: var(--color-bg-card);
  color: var(--color-text-muted);
  font-size: var(--font-size-sm);
  padding: var(--space-md);
}


/* Apartment plan */
.plan-card {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
}

.plan-card__link {
  display: block;
  cursor: zoom-in;
}

.plan-card__image {
  display: block;
  width: 100%;
  height: auto;
}

.plan-card__link:hover .plan-card__image {
  opacity: 0.96;
}

.plan-card__caption {
  padding: var(--space-md) var(--space-lg);
  border-top: 1px solid var(--color-border);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  line-height: 1.6;
}


/* Plan lightbox */
.plan-lightbox {
  box-sizing: border-box;
  width: 100vw;
  height: 100vh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 24px;
  border: 0;
  background: transparent;
}

.plan-lightbox[open] {
  display: grid;
  place-items: center;
}

.plan-lightbox::backdrop {
  background: rgba(14, 24, 21, 0.88);
  backdrop-filter: blur(4px);
}

.plan-lightbox__inner {
  position: relative;
  max-width: 100%;
  max-height: 100%;
}

.plan-lightbox__image {
  display: block;
  max-width: calc(100vw - 48px);
  max-height: calc(100vh - 48px);
  width: auto;
  height: auto;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
}

.plan-lightbox__close {
  position: absolute;
  top: 12px;
  right: 12px;
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  padding: 0;
  border: 0;
  border-radius: 50%;
  background: rgba(20, 48, 40, 0.92);
  color: #fff;
  font: inherit;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
  box-shadow: 0 4px 18px rgba(0, 0, 0, 0.25);
}

.plan-lightbox__close:hover {
  background: var(--color-primary);
}

.plan-lightbox__close:focus-visible {
  outline: 3px solid #fff;
  outline-offset: 3px;
}

body.is-lightbox-open {
  overflow: hidden;
}

@media (max-width: 600px) {
  .plan-lightbox {
    padding: 8px;
  }

  .plan-lightbox__image {
    max-width: calc(100vw - 16px);
    max-height: calc(100vh - 16px);
    border-radius: var(--radius-md);
  }

  .plan-lightbox__close {
    top: 8px;
    right: 8px;
  }
}

/* --- Advantages: make the 7th card intentional, not orphaned --- */
@media (min-width: 769px) {
  .advantages__grid .advantage-card:nth-child(7) {
    grid-column: 1 / -1;
  }

  .advantages__grid .advantage-card:nth-child(7) .advantage-card__text {
    max-width: 860px;
  }
}

/* --- FAQ two-column desktop layout --- */
@media (min-width: 900px) {
  .faq__list--columns {
    max-width: 1000px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0 var(--space-2xl);
  }

  .faq__column {
    min-width: 0;
  }
}

@media (max-width: 899px) {
  .faq__column + .faq__column {
    margin-top: 0;
  }
}


/* --- Documents two-column desktop layout --- */
@media (min-width: 900px) {
  .documents__list--columns {
    max-width: 1000px;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-lg);
  }

  .documents__list--columns .documents__item {
    margin: 0;
  }

  .documents__callout {
    max-width: 1000px !important;
  }
}

@media (max-width: 899px) {
  .documents__list--columns {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }
}

/* --- Mobile menu active state --- */
body.nav-open {
  overflow: hidden;
}

.burger--active .burger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.burger--active .burger__line:nth-child(2) {
  opacity: 0;
}

.burger--active .burger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 768px) {
  .header__nav {
    z-index: 120;
  }
}