/* Артесофт — в стиле сайта студии интерьерного дизайна (Behance ref) */

:root {
  --color-bg: #fafaf8;
  --color-bg-alt: #f5f4f0;
  --color-text: #1a1a1a;
  --color-text-muted: #5a5a5a;
  --color-text-light: #8a8a8a;
  --color-border: #e8e6e2;
  --font-serif: "Cormorant Garamond", Georgia, serif;
  --font-sans: "Montserrat", -apple-system, sans-serif;
  --space: 1.5rem;
  --space-lg: 3rem;
  --space-xl: 5rem;
  --width-content: 1200px;
  --transition: 0.3s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  overflow-x: hidden;
}

main {
  max-width: 100%;
  overflow-x: hidden;
}

/* Header — минимальный, фиксированный, при скролле с фоном */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  padding: var(--space) 0;
  transition: background var(--transition), box-shadow var(--transition);
}

.header--scrolled {
  background: rgba(250, 250, 248, 0.98);
  box-shadow: 0 1px 0 var(--color-border);
}

.header--scrolled .logo,
.header--scrolled .nav a {
  color: var(--color-text);
}

.header--scrolled .nav a:hover {
  color: var(--color-text);
}

.header--scrolled .nav a.nav__phone {
  border-left-width: 2px;
  border-left-color: var(--color-border);
}

.header__inner {
  max-width: var(--width-content);
  margin: 0 auto;
  padding: 0 var(--space);
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  cursor: pointer;
  color: #fff;
  z-index: 210;
  transition: color var(--transition);
}

.header--scrolled .nav-toggle {
  color: var(--color-text);
}

.nav-toggle .nav-toggle__bar {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  transition: transform var(--transition), opacity var(--transition);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: color var(--transition);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.nav a {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.9);
  text-decoration: none;
  transition: color var(--transition);
}

.nav a:hover {
  color: #fff;
}

.nav a.nav__phone,
.nav a.nav__mail {
  text-transform: none;
}
.nav a.nav__phone {
  margin-left: 1.25rem;
  padding-left: 1.25rem;
  border-left: 2px solid rgba(255, 255, 255, 0.35);
}

/* Hero — полноэкранный, фон-картинка, overlay, центрированный текст */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
}

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

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(0,0,0,0.25) 0%, rgba(0,0,0,0.5) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 28em;
  padding: var(--space);
}

.hero__label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  margin: 0 0 0.75em;
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 6vw, 3.5rem);
  font-weight: 500;
  line-height: 1.15;
  color: #fff;
  margin: 0 0 0.4em;
  letter-spacing: 0.01em;
}

.hero__subtitle {
  font-size: 1rem;
  color: rgba(255,255,255,0.9);
  margin: 0 0 2.5rem;
  font-weight: 400;
}

.hero__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.75rem;
  margin-bottom: 1.5rem;
  border: 1px solid rgba(255,255,255,0.7);
  background: rgba(0,0,0,0.25);
  color: #fff;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), transform 0.15s ease-out;
}

.hero__cta:hover {
  background: rgba(0,0,0,0.4);
  border-color: #fff;
  transform: translateY(-1px);
}

.hero__scroll {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 2px solid rgba(255,255,255,0.6);
  color: rgba(255,255,255,0.8);
  text-decoration: none;
  transition: border-color var(--transition), color var(--transition);
}

.hero__scroll:hover {
  border-color: #fff;
  color: #fff;
}

.hero__scroll span {
  width: 0.4rem;
  height: 0.4rem;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
  animation: scrollHint 2s ease-in-out infinite;
}

@keyframes scrollHint {
  0%, 100% { opacity: 1; transform: rotate(45deg) translateY(-2px); }
  50% { opacity: 0.5; transform: rotate(45deg) translateY(2px); }
}

/* Блоки контента — чередующиеся «медиа + текст» */
.block {
  padding: var(--space-xl) 0;
}

.block--split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 0;
}

.block--split .block__media {
  position: relative;
  min-height: 400px;
  cursor: pointer;
}

.block--split .block__media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: opacity 0.25s ease;
}

.block--split .block__media:hover img {
  opacity: 0.96;
}

.block--split .block__body {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-xl) var(--space-lg);
  background: var(--color-bg);
}

.block--split .block__body .gallery--inline {
  margin-top: 0.25rem;
}

.block--reverse .block__media {
  order: 2;
}

.block--reverse .block__body {
  order: 1;
}

.block--center {
  background: var(--color-bg-alt);
}

.block--center .block__body {
  text-align: center;
  padding: 0 var(--space) var(--space-lg);
  max-width: 36em;
  margin: 0 auto;
}

.block__body--narrow {
  max-width: 28em;
}

.block__num {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  color: var(--color-text-light);
  margin-bottom: 0.5em;
}

.block__title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 500;
  line-height: 1.2;
  color: var(--color-text);
  margin: 0 0 0.6em;
}

.block__lead {
  font-size: 1rem;
  color: var(--color-text-muted);
  margin: 0 0 1.25em;
  line-height: 1.6;
}

.block__list {
  margin: 0 0 var(--space-lg);
  padding-left: 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.block__list li {
  margin-bottom: 0.35em;
}

/* Галереи — собранная сетка, крупные миниатюры */
.gallery {
  display: grid;
  gap: 2px;
}

.gallery--inline {
  grid-template-columns: repeat(2, 1fr);
  max-width: 400px;
  gap: 3px;
}

#bedroom .gallery--inline,
#kids .gallery--inline {
  grid-template-columns: repeat(4, 1fr);
  max-width: 360px;
  gap: 4px;
}

#bedroom .gallery-item,
#kids .gallery-item {
  min-height: 85px;
}

.gallery--many {
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  padding: 0 0.5rem;
  max-width: var(--width-content);
  margin: 0 auto;
  gap: 3px;
}

.block--center .gallery--many {
  padding: 0 0.5rem;
}

.gallery-item {
  position: relative;
  overflow: hidden;
  background: var(--color-border);
  cursor: pointer;
  aspect-ratio: 1;
  min-height: 140px;
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.4s ease;
}

.gallery-item:hover img {
  transform: scale(1.04);
}

/* Форма заявки */
.lead-section {
  padding: var(--space-xl) 0;
  background: var(--color-bg-alt);
}

.lead-section__inner {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 var(--space);
}

.lead-section__title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 500;
  margin: 0 0 0.5rem;
}

.lead-section__subtitle {
  margin: 0 0 1.5rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.lead-form {
  display: grid;
  gap: 1rem;
}

.lead-form__row {
  display: grid;
  gap: 0.75rem;
}

@media (min-width: 640px) {
  .lead-form__row--two {
    grid-template-columns: 1fr 1fr;
  }
}

.lead-form__label {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-light);
}

.lead-form__label span {
  font-size: 0.8rem;
  font-weight: 500;
}

.lead-form__label small {
  font-size: 0.75rem;
  text-transform: none;
  letter-spacing: 0;
  color: var(--color-text-muted);
}

.lead-form__field {
  padding: 0.65rem 0.75rem;
  border-radius: 0;
  border: 1px solid var(--color-border);
  font-family: inherit;
  font-size: 0.95rem;
  background: #fff;
}

.lead-form__field:focus {
  outline: none;
  border-color: var(--color-text-light);
}

.lead-form__field--textarea {
  min-height: 120px;
  resize: vertical;
}

.lead-form__hint {
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.lead-form__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem 1.5rem;
  margin-top: 0.5rem;
}

.lead-form__submit {
  padding: 0.75rem 1.75rem;
  border: none;
  background: var(--color-text);
  color: #fff;
  font-family: inherit;
  font-size: 0.9rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  cursor: pointer;
  transition: opacity 0.2s;
}

.lead-form__submit:hover {
  opacity: 0.9;
}

.lead-form__submit:disabled {
  opacity: 0.6;
  cursor: default;
}

.lead-form__status {
  font-size: 0.85rem;
}

.lead-form__status--error {
  color: #b10020;
}

.lead-form__status--success {
  color: #1b7f2a;
}

/* Footer — как в референсе: бренд + контакты (Instagram, Telegram, Mail) */
.footer {
  padding: var(--space-xl) var(--space);
  background: var(--color-text);
  color: rgba(255,255,255,0.85);
}

.footer__inner {
  max-width: var(--width-content);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-lg);
}

.footer__logo {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 500;
  color: #fff;
  letter-spacing: 0.02em;
}

.footer__tagline {
  margin: 0.35em 0 0;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  font-weight: 400;
}

.footer__links {
  display: flex;
  gap: 1.5rem;
}

.footer__link {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  transition: color var(--transition);
}

.footer__link:hover {
  color: #fff;
}

/* Лайтбокс */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 1000;
  background: rgba(0, 0, 0, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  cursor: zoom-out;
}

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

.lightbox__inner {
  position: relative;
  max-width: 95vw;
  max-height: 90vh;
  cursor: default;
}

.lightbox__loader {
  display: none;
  position: absolute;
  inset: 0;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 8px;
}

.lightbox__loader.is-visible {
  display: flex;
}

.lightbox__loader::after {
  content: '';
  width: 48px;
  height: 48px;
  border: 3px solid rgba(255, 255, 255, 0.25);
  border-top-color: #fff;
  border-radius: 50%;
  animation: lightbox-spin 0.8s linear infinite;
}

@keyframes lightbox-spin {
  to { transform: rotate(360deg); }
}

.lightbox__inner img {
  max-width: 100%;
  max-height: 90vh;
  width: auto;
  height: auto;
  object-fit: contain;
  box-shadow: 0 12px 48px rgba(0,0,0,0.4);
  transition: opacity 0.2s ease-out;
}

.lightbox__close {
  position: absolute;
  top: 1.5rem;
  right: 1.5rem;
  width: 2.5rem;
  height: 2.5rem;
  border: none;
  background: rgba(0,0,0,0.6);
  color: #fff;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s;
}

.lightbox__close:hover {
  background: rgba(0,0,0,0.8);
}

.lightbox__prev,
.lightbox__next {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 10;
  width: 3rem;
  height: 3rem;
  border: none;
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  font-size: 2rem;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, opacity 0.2s;
}

.lightbox__prev:hover,
.lightbox__next:hover {
  background: rgba(255, 255, 255, 0.25);
}

.lightbox__prev {
  left: 1rem;
}

.lightbox__next {
  right: 1rem;
}

.lightbox__caption {
  display: none;
}

/* Адаптив — меню-бургер на мобильных */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    left: 0;
    background: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0;
    padding: 5rem var(--space) var(--space);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity var(--transition), visibility var(--transition);
    z-index: 200;
  }

  .nav--open {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }

  .nav a {
    width: 100%;
    max-width: 280px;
    padding: 1rem 1.25rem;
    font-size: 1rem;
    text-align: center;
    border-bottom: 1px solid var(--color-border);
    color: var(--color-text);
  }

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

  .nav a:first-child {
    border-top: 1px solid var(--color-border);
  }

  .nav a.nav__phone {
    margin-left: 0;
    padding-left: 0;
    border-left: none;
  }

  body.nav-open {
    overflow: hidden;
  }

  body.nav-open .nav-toggle {
    color: var(--color-text);
  }

  .calc-page .nav a {
    color: var(--color-text);
  }

  .calc-page .nav a:hover {
    color: var(--color-text-muted);
  }

  .calc-page .nav-toggle {
    color: var(--color-text);
  }
}

@media (max-width: 900px) {
  .block--split {
    grid-template-columns: 1fr;
  }

  .block--reverse .block__media {
    order: 1;
  }

  .block--reverse .block__body {
    order: 2;
  }

  .block--split .block__media {
    min-height: 280px;
  }

  .block--split .block__body {
    padding: var(--space-lg) var(--space);
  }

  .gallery--many {
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    padding: 0 0.5rem;
  }
}

@media (max-width: 600px) {
  .hero__content {
    transform: translateY(-20%);
  }

  .hero__title {
    font-size: 1.9rem;
    margin-bottom: 0.75em;
  }

  .hero__label {
    margin-bottom: 1em;
  }

  .hero__subtitle {
    margin-bottom: 2.75rem;
  }

  .block__body {
    padding: var(--space-lg) var(--space);
  }

  .gallery--inline {
    max-width: 100%;
    gap: 2px;
  }

  .gallery--many {
    grid-template-columns: repeat(2, 1fr);
    gap: 2px;
    padding: 0 0.5rem;
  }

  .gallery-item {
    min-height: 120px;
  }

  #bedroom .gallery--inline,
  #kids .gallery--inline {
    grid-template-columns: repeat(3, 1fr);
    max-width: 100%;
    gap: 6px;
  }

  #bedroom .gallery-item,
  #kids .gallery-item {
    min-height: 100px;
  }

  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .footer__links {
    justify-content: center;
  }
}