/* ============================================================
   DESIGN SYSTEM — Ольга Горбунова | Interior Design Portfolio
   Stack: HTML5 / CSS3 / Vanilla JS
   Style: Editorial Minimalism + Soft Glass
   ============================================================ */

:root {
  /* Типографика */
  --font-heading: 'Cormorant Garamond', serif;
  --font-body: 'Montserrat', sans-serif;

  /* Цветовая палитра */
  --c-bg-page: #ECEDE8;
  --c-earth: #3B322C;
  --c-charcoal: #1c1c1c;
  --c-brown: #5C4A32;
  --c-gold: #7a6548;
  --c-muted: #665A51;
  --c-white: #FFFFFF;

  /* Стекло и тени */
  --glass-bg: rgba(255, 255, 255, 0.72);
  --glass-bg-hover: rgba(255, 255, 255, 0.88);
  --glass-border: 1px solid rgba(255, 255, 255, 0.45);
  --shadow-sm: 0 2px 8px rgba(92, 74, 50, 0.06);
  --shadow-md: 0 8px 32px rgba(92, 74, 50, 0.08);
  --shadow-lg: 0 12px 48px rgba(92, 74, 50, 0.12);

  /* Скругления */
  --r-sm: 4px;
  --r-md: 8px;

  /* Переходы */
  --t-fast: 150ms ease-out;
  --t-base: 300ms ease-out;
  --t-slow: 800ms cubic-bezier(0.16, 1, 0.3, 1);

  /* Отступы */
  --s-4: 4px;
  --s-8: 8px;
  --s-12: 12px;
  --s-16: 16px;
  --s-24: 24px;
  --s-32: 32px;
  --s-48: 48px;
  --s-64: 64px;
  --s-80: 80px;
  --s-120: 120px;
}

/* ─── СБРОС ─── */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-family: var(--font-body);
  color: var(--c-brown);
  line-height: 1.6;
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  position: relative;
  min-height: 100vh;
  overflow-x: hidden;
  background-color: var(--c-bg-page);
}

/* ─── ФОН ─── */
.bg-texture {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image: url('../assets/images/bg_green.jpg');
  background-size: cover;
  background-position: center;
}

/* ─── ТИПОГРАФИКА ─── */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 500;
  line-height: 1.2;
  color: var(--c-brown);
  margin-bottom: var(--s-16);
}

p, ul, ol {
  margin-bottom: var(--s-16);
}

p:last-child {
  margin-bottom: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast);
}

/* ─── МАРКИРОВАННЫЕ СПИСКИ ─── */
ul.service-list-items,
ul.service-comp-list {
  list-style: none;
  margin: var(--s-16) 0;
}

ul.service-list-items li,
ul.service-comp-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: var(--s-8);
}

ul.service-list-items li::before,
ul.service-comp-list li::before {
  content: "•";
  color: var(--c-gold);
  position: absolute;
  left: 0;
  font-size: 1.2rem;
  line-height: inherit;
}

/* ─── УТИЛИТЫ ─── */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--s-24);
  width: 100%;
}

.relative   { position: relative; }
.d-flex     { display: flex; }
.align-center  { align-items: center; }
.justify-between { justify-content: space-between; }
.text-center { text-align: center; }
.margin-auto { margin-inline: auto; }

/* ─── СЕКЦИИ ─── */
.section {
  padding: var(--s-120) 0;
}

.section-title {
  font-size: 3rem;
  margin-bottom: var(--s-8);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-header {
  margin-bottom: var(--s-80);
}

.section-subtitle {
  font-size: 1.35rem;
  color: var(--c-muted);
  max-width: 800px;
  margin: var(--s-16) auto 0;
}

.section-line {
  width: 60px;
  height: 2px;
  background-color: var(--c-gold);
  margin-bottom: var(--s-48);
}

/* ─── СТЕКЛЯННАЯ ПАНЕЛЬ ─── */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: var(--glass-border);
  border-radius: 0;
  box-shadow: var(--shadow-md);
  transition: background var(--t-base), transform var(--t-base), box-shadow var(--t-base);
}

.glass:hover {
  background: var(--glass-bg-hover);
  box-shadow: var(--shadow-lg);
}

/* ─── ПЛАВНОЕ ПОЯВЛЕНИЕ ПРИ СКРОЛЛЕ ─── */
.reveal {
  opacity: 0;
  will-change: transform, opacity;
  transition: all var(--t-slow);
}

.reveal.fade-up    { transform: translateY(40px); }
.reveal.fade-right { transform: translateX(40px); }
.reveal.fade-left  { transform: translateX(-40px); }

.reveal.show {
  opacity: 1;
  transform: translate(0);
}

/* ─── КНОПКИ ─── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  font-weight: 500;
  border-radius: var(--r-sm);
  cursor: pointer;
  transition: all var(--t-base);
  border: none;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  font-size: 0.85rem;
  font-family: var(--font-body);
}

.btn-primary {
  background-color: var(--c-brown);
  color: var(--c-white);
  box-shadow: 0 4px 15px rgba(92, 74, 50, 0.25);
}

.btn-primary:hover {
  background-color: var(--c-gold);
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(122, 101, 72, 0.35);
}

.btn-outline {
  background-color: transparent;
  color: var(--c-white);
  border: 1px solid var(--c-white);
}

.btn-outline:hover {
  background-color: var(--c-white);
  color: var(--c-brown);
}

/* ─── ШАПКА / НАВИГАЦИЯ ─── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  padding: var(--s-16) 0;
  z-index: 100;
  transition: background-color var(--t-base), padding var(--t-base), box-shadow var(--t-base);
}

.header.scrolled,
.header.menu-open {
  background: rgba(236, 237, 232, 0.95);
  backdrop-filter: blur(12px);
  padding: var(--s-8) 0;
  border-bottom: 1px solid rgba(92, 74, 50, 0.08);
  box-shadow: var(--shadow-sm);
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-text {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 500;
  letter-spacing: 2px;
  color: var(--c-white);
  text-transform: uppercase;
  transition: color var(--t-base), text-shadow var(--t-base);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.4);
}

.header.scrolled .logo-text,
.header.menu-open .logo-text {
  color: var(--c-brown);
  text-shadow: none;
}

.nav-list {
  gap: var(--s-8);
  list-style: none;
}

.nav-link {
  padding: var(--s-8) var(--s-16);
  font-size: 1.15rem; 
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--c-white);
  text-shadow: 0 1px 3px rgba(0, 0, 0, 0.5);
  transition: color var(--t-fast);
}

.header.scrolled .nav-link,
.header.menu-open .nav-link {
  color: var(--c-brown);
  text-shadow: none;
}

.nav-link:hover {
  color: var(--c-gold);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
  padding: 8px;
  z-index: 101;
}

.mobile-menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background-color: var(--c-white);
  transition: var(--t-base);
}

.header.scrolled .mobile-menu-toggle span,
.header.menu-open .mobile-menu-toggle span {
  background-color: var(--c-brown);
}

/* ─── ГЕРОЙ ─── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero-bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1.05);
  animation: zoomImg 20s infinite alternate ease-in-out;
}

@keyframes zoomImg {
  from { transform: scale(1); }
  to   { transform: scale(1.1); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0,0,0,0.72) 0%, rgba(0,0,0,0.25) 100%);
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 800px;
  color: var(--c-white);
  padding-top: var(--s-80);
  padding-bottom: var(--s-80);
}

.hero-title {
  font-size: clamp(3rem, 6vw, 5rem);
  font-weight: 400;
  margin-bottom: var(--s-8);
  line-height: 1;
  color: var(--c-white);
}

.hero-subtitle {
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  color: var(--c-white);
  font-weight: 300;
  margin-bottom: var(--s-48);
  letter-spacing: 3px;
  text-transform: uppercase;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
}

.hero-desc {
  font-size: 1.15rem;
  font-weight: 300;
  margin-bottom: var(--s-48);
  max-width: 600px;
  line-height: 1.8;
  opacity: 0.92;
}

.hero-actions {
  display: flex;
  gap: var(--s-24);
  flex-wrap: wrap;
}

/* ─── ОБО МНЕ ─── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr;
  max-width: 1100px;
  margin: 0 auto;
  gap: var(--s-48);
  align-items: flex-start;
}

@media (min-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 450px;
  }
}

.about-text {
  padding: var(--s-48);
  text-align: center;
}

@media (min-width: 1024px) {
  .about-text {
    text-align: left;
    padding-right: var(--s-24);
  }
}

.about-text h3 {
  font-size: 2rem;
  margin-bottom: var(--s-4);
  color: var(--c-brown);
}

.about-text .greeting {
  font-size: 1.15rem;
  font-weight: 400;
  font-style: normal;
  color: var(--c-muted);
  line-height: 1.75;
  margin-bottom: var(--s-16);
}

.about-text p {
  color: var(--c-muted);
  line-height: 1.75;
  font-size: 1.15rem;
}

.about-image {
  display: flex;
  justify-content: center;
}

.about-image-wrapper {
  position: relative;
  width: min(70vw, 450px);
  aspect-ratio: 1/1;
  border-radius: 50%;
  overflow: hidden;
  border: 8px solid var(--glass-bg);
  box-shadow: var(--shadow-lg), 0 0 40px rgba(92, 74, 50, 0.1);
  transition: var(--t-base);
}

.about-image-wrapper:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 60px rgba(92, 74, 50, 0.15);
}

.about-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: var(--t-slow);
}

.about-image-wrapper:hover img {
  transform: scale(1.05);
}

/* ─── ГАЛЕРЕЯ «ФРАГМЕНТЫ ПРОЕКТОВ» ─── */
.about-gallery .service-carousel {
  aspect-ratio: 16 / 9;
  width: 100%;
  border-radius: var(--r-md);
  overflow: hidden;
  position: relative;
}

/* Важные стили для трека и слайдов */
.about-gallery .service-carousel .carousel-track {
  display: flex;
  width: 100%;
  height: 100%;
  will-change: transform;
  transition: transform 600ms cubic-bezier(0.25, 1, 0.5, 1);
}

.about-gallery .service-carousel .carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
}

.about-gallery .service-carousel .carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* Большие кнопки для about-карусели */
.about-gallery .carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 64px;
  height: 64px;
  background: rgba(255, 255, 255, 0.92);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--c-brown);
  transition: var(--t-fast);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.18);
  z-index: 10;
}

.about-gallery .carousel-btn:hover {
  background: #fff;
  transform: translateY(-50%) scale(1.08);
  color: var(--c-gold);
}

.about-gallery .carousel-btn.prev { left: 16px; }
.about-gallery .carousel-btn.next { right: 16px; }

/* ─── УСЛУГИ ─── */
.services-list {
  display: flex;
  flex-direction: column;
  gap: var(--s-80);
}

.service-split-3 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 2px;
  align-items: stretch;
  box-shadow: var(--shadow-md);
}

/* Левая колонка — текст + карусель */
.service-box-info {
  padding: var(--s-24) var(--s-24);
  display: flex;
  flex-direction: column;
  gap: var(--s-8);
}

.service-box-info .service-title {
  font-size: 2rem;
  margin-bottom: var(--s-8);
  font-weight: 400;
  font-family: var(--font-heading);
  color: var(--c-brown);
}

.service-box-info .service-comp-list {
  list-style: none;
  margin: 0 0 var(--s-8) 0;
  padding: 0;
}

.service-box-info .service-comp-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: var(--s-4);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--c-muted);
}

.service-box-info .service-comp-list li::before {
  content: "•";
  color: var(--c-gold);
  position: absolute;
  left: 0;
  font-size: 1.2rem;
  line-height: inherit;
}

.service-meta {
  display: flex;
  align-items: center;
  gap: var(--s-24);
  margin-top: auto;
  padding-top: var(--s-12);
  border-top: 1px solid rgba(92, 74, 50, 0.1);
}

.service-meta .price {
  font-size: 1.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--c-gold);
}

.service-meta .time {
  font-size: 1rem;
  color: var(--c-muted);
  border-left: 1px solid rgba(92, 74, 50, 0.1);
  padding-left: var(--s-24);
}

/* Надпись над каруселью */
.service-carousel-label {
  font-size: 0.9rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--c-gold);
  margin-top: var(--s-8);
  margin-bottom: var(--s-4);
}

/* Карусель внутри левой колонки — 16:9 */
.service-box-info .service-carousel {
  width: 100%;
  aspect-ratio: 16 / 9;
  border-radius: var(--r-sm);
  overflow: hidden;
  background-color: var(--c-earth);
  position: relative;
  flex-shrink: 0;
}

.service-box-info .service-carousel .carousel-track {
  display: flex;
  height: 100%;
  will-change: transform;
  transition: transform 600ms cubic-bezier(0.25, 1, 0.5, 1);
}

.service-box-info .service-carousel .carousel-slide {
  flex: 0 0 100%;
  width: 100%;
  height: 100%;
}

.service-box-info .service-carousel .carousel-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* Кнопки для карусели внутри левой колонки (уменьшенные) */
.service-box-info .carousel-btn {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.92);
  border: none;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  color: var(--c-brown);
  transition: var(--t-fast);
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
  z-index: 10;
}

.service-box-info .carousel-btn:hover {
  background: #fff;
  transform: translateY(-50%) scale(1.08);
  color: var(--c-gold);
}

.service-box-info .carousel-btn.prev { left: 8px; }
.service-box-info .carousel-btn.next { right: 8px; }

/* Правая колонка — большое статическое изображение */
.service-box-image {
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background-color: var(--c-earth);
  min-height: 450px;
}

.service-image-wrapper {
  width: 100%;
  height: 100%;
  min-height: 450px;
  overflow: hidden;
}

.service-image-wrapper img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ─── ЭТАПЫ РАБОТЫ ─── */
.workflow-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--s-24);
}

.workflow-item {
  padding: var(--s-32) var(--s-24);
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: var(--s-8);
  transition: transform var(--t-base), box-shadow var(--t-base);
}

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

.step-num {
  font-family: var(--font-heading);
  font-size: 2.8rem;
  line-height: 1;
  font-weight: 300;
  color: var(--c-gold);
  opacity: 0.7;
  margin-bottom: var(--s-4);
}

.step-content {
  font-size: 0.95rem;
  font-weight: 400;
  color: var(--c-muted);
  line-height: 1.6;
}

/* ─── ФУТЕР ─── */
.footer {
  padding: var(--s-80) 0 0;
}

.footer-wrapper {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: var(--s-48);
  padding: var(--s-64);
  margin-bottom: var(--s-48);
}

.footer-logo {
  margin-bottom: var(--s-24);
}

.footer .logo-text {
  color: var(--c-brown);
  text-shadow: none;
  font-size: 2.5rem;
  letter-spacing: 2px;
}

.footer-slogan {
  font-size: 1.1rem;
  color: var(--c-muted);
  max-width: 300px;
  line-height: 1.6;
}

.footer-title {
  font-size: 1.3rem;
  margin-bottom: var(--s-24);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.footer-links ul {
  list-style: none;
}

.footer-links li {
  margin-bottom: var(--s-12);
}

.footer-links a {
  color: var(--c-brown);
  font-size: 1.05rem;
  transition: color var(--t-fast);
}

.footer-links a:hover {
  color: var(--c-gold);
}

.contact-phone {
  display: inline-block;
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: var(--s-16);
  color: var(--c-brown);
  font-family: var(--font-heading);
  transition: color var(--t-fast);
}

.contact-phone:hover {
  color: var(--c-gold);
}

/* QR-коды */
.qr-grid {
  display: flex;
  gap: var(--s-16);
}

.qr-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--s-8);
  transition: transform var(--t-fast);
}

.qr-item:hover {
  transform: scale(1.05);
}

.qr-img {
  width: 80px;
  height: 80px;
  border-radius: var(--r-sm);
  border: 1px solid rgba(92, 74, 50, 0.2);
}

.qr-label {
  font-size: 0.85rem;
  color: var(--c-brown);
  font-weight: 500;
}

.footer-bottom {
  text-align: center;
  padding: var(--s-24) 0;
  font-size: 0.9rem;
  color: var(--c-muted);
  border-top: 1px solid rgba(92, 74, 50, 0.08);
}

/* ============================================================
   АДАПТИВНОСТЬ — Mobile-first
   ============================================================ */

@media (max-width: 1200px) {
  .hero-title { font-size: 4rem; }

  .about-text {
    padding: var(--s-48) var(--s-32);
  }

  .service-box-info .service-title {
    font-size: 1.8rem;
  }

  .workflow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .hero-content {
    text-align: center;
    margin: 0 auto;
  }

  .hero-overlay {
    background: rgba(0, 0, 0, 0.55);
  }

  .hero-actions {
    justify-content: center;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .about-image {
    display: none;
  }

  .service-split-3 {
    grid-template-columns: 1fr;
  }

  .service-box-image {
    min-height: 300px;
    order: -1;
  }

  .service-image-wrapper {
    min-height: 300px;
  }

  .footer-wrapper {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .footer-slogan {
    margin: 0 auto;
  }
  
  .qr-grid {
    justify-content: center;
  }

  .qr-block {
    margin: 0 auto;
  }

  .workflow-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(236, 237, 232, 0.98);
    backdrop-filter: blur(10px);
    padding: var(--s-64) var(--s-24);
    transform: translateY(-150%);
    opacity: 0;
    transition: var(--t-base);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
    pointer-events: none;
    border-bottom: 1px solid rgba(92, 74, 50, 0.08);
  }

  .nav.active {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-list {
    flex-direction: column;
    align-items: center;
    gap: var(--s-24);
  }

  .nav-link {
    color: var(--c-brown);
    text-shadow: none;
    font-size: 1.2rem;
  }

  .mobile-menu-toggle {
    display: flex;
  }

  .header.scrolled .mobile-menu-toggle span,
  .header.menu-open .mobile-menu-toggle span,
  .mobile-menu-toggle.active span {
    background-color: var(--c-brown);
  }

  .mobile-menu-toggle.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
  }

  .mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }

  .mobile-menu-toggle.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
  }

  .hero-title { font-size: 3rem; }

  .hero-subtitle { font-size: 1.1rem; }

  .section {
    padding: var(--s-80) 0;
  }

  .section-title {
    font-size: 2.2rem;
  }

  .section-header {
    margin-bottom: var(--s-48);
  }

  .about-text {
    padding: var(--s-32) var(--s-24);
  }

  .service-box-image {
    min-height: 250px;
  }

  .service-image-wrapper {
    min-height: 250px;
  }
}

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

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .service-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--s-8);
  }

  .service-meta .time {
    border: none;
    padding: 0;
  }

  .service-box-image {
    min-height: 200px;
  }

  .service-image-wrapper {
    min-height: 200px;
  }

  .service-box {
    padding: var(--s-16);
  }

  .footer-wrapper {
    padding: var(--s-32) var(--s-24);
  }
}