/* =========================================
   Zoolya — CSS
   Оптимизировано: все изображения с width/height,
   Google Fonts deferred, critical CSS inline-ready
   ========================================= */

/* --- Custom Properties ------------------ */
:root {
  --color-primary: #C8A45C;
  --color-primary-light: #D4B76A;
  --color-primary-dark: #A8863E;
  --color-accent: #4A6741;
  --color-accent-light: #5C7D52;
  --color-dark: #1A1A1A;
  --color-dark-alt: #2C2C2C;
  --color-light: #FDFBF7;
  --color-light-alt: #F5F1E8;
  --color-white: #FFFFFF;
  --color-border: rgba(0,0,0,0.08);
  --color-text: #333333;
  --color-text-muted: #777777;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --section-padding: clamp(4rem, 10vw, 8rem);
  --container-max: 1200px;
  --container-padding: clamp(1rem, 5vw, 2rem);

  --ease-out: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --transition: 0.3s var(--ease-out);
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-light);
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  text-decoration: none;
  color: inherit;
}

ul {
  list-style: none;
}

/* --- Utility ---------------------------- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

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

.section--alt {
  background: var(--color-light-alt);
}

.section__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 600;
  line-height: 1.15;
  color: var(--color-dark);
  margin-bottom: 1.25rem;
}

.section__title--center {
  text-align: center;
}

.section__subtitle {
  text-align: center;
  color: var(--color-text-muted);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto 3rem;
}

.section__lead {
  font-size: 1.1rem;
  color: var(--color-dark-alt);
  margin-bottom: 1rem;
  line-height: 1.6;
}

/* --- Buttons ---------------------------- */
.btn {
  display: inline-block;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  padding: 1rem 2.2rem;
  border-radius: 2px;
  cursor: pointer;
  transition: all var(--transition);
  border: 1.5px solid transparent;
}

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

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(200, 164, 92, 0.3);
}

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

.btn--outline:hover {
  background: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(74, 103, 65, 0.2);
}

.btn--full {
  width: 100%;
  text-align: center;
}

/* --- Header / Navigation ---------------- */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 100;
  transition: background 0.3s ease, backdrop-filter 0.3s ease;
  padding: 1.25rem 0;
}

.header--scrolled {
  background: rgba(253, 251, 247, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  padding: 0.75rem 0;
}

.nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-white);
  transition: color 0.3s ease;
  letter-spacing: 0.02em;
}

.header--scrolled .nav__logo {
  color: var(--color-dark);
}

.nav__list {
  display: flex;
  gap: 2.5rem;
}

.nav__link {
  font-size: 0.875rem;
  font-weight: 400;
  color: rgba(255,255,255,0.85);
  transition: color var(--transition);
  letter-spacing: 0.02em;
}

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

.nav__link:hover {
  color: var(--color-primary);
}

/* Hamburger */
.nav__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 101;
}

.nav__burger span {
  display: block;
  width: 24px;
  height: 1.5px;
  background: var(--color-white);
  transition: all 0.3s ease;
  transform-origin: center;
}

.header--scrolled .nav__burger span {
  background: var(--color-dark);
}

.nav__burger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav__burger.active span:nth-child(2) {
  opacity: 0;
}

.nav__burger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(4px, -4px);
}

/* --- Hero ------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: url('https://images.unsplash.com/photo-1675207740994-7373464dad8d?w=1600&q=80') center/cover no-repeat;
  color: var(--color-white);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(10, 10, 10, 0.55) 0%,
    rgba(10, 10, 10, 0.35) 50%,
    rgba(10, 10, 10, 0.55) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 10vw, 7rem);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.03em;
  margin-bottom: 1.5rem;
  animation: fadeUp 1.2s var(--ease-out);
}

.hero__subtitle {
  font-size: clamp(1rem, 2.5vw, 1.35rem);
  font-weight: 300;
  line-height: 1.6;
  opacity: 0.9;
  margin-bottom: 2.5rem;
  animation: fadeUp 1.2s 0.2s var(--ease-out) both;
}

.hero__content .btn {
  animation: fadeUp 1.2s 0.4s var(--ease-out) both;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  animation: bounce 2s infinite;
}

.hero__scroll span {
  display: block;
  width: 1px;
  height: 40px;
  background: rgba(255,255,255,0.5);
}

/* --- About ------------------------------ */
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.about__text p {
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.about__image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: 2px;
}

/* --- Product Sections ------------------- */
.product__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: center;
}

.product__grid--reverse {
  direction: rtl;
}

.product__grid--reverse > * {
  direction: ltr;
}

.product__tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-primary-dark);
  margin-bottom: 0.5rem;
}

.product__image img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: 2px;
}

.product__features {
  margin: 1.5rem 0 2rem;
}

.product__features li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.6rem;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.product__features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-primary);
}

/* --- Advantages ------------------------- */
.advantages__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem;
}

.advantage {
  text-align: center;
  padding: 2rem 1.5rem;
}

.advantage__icon {
  color: var(--color-primary);
  margin-bottom: 1.25rem;
  display: inline-block;
}

.advantage h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-dark);
  margin-bottom: 0.75rem;
}

.advantage p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- FAQ -------------------------------- */
.faq {
  max-width: 800px;
  margin: 0 auto;
}

.faq__list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq__item {
  border: 1px solid var(--color-border);
  border-radius: 4px;
  overflow: hidden;
  background: var(--color-white);
}

.faq__question {
  padding: 1.25rem 1.5rem;
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-dark);
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background 0.2s ease;
}

.faq__question:hover {
  background: var(--color-light-alt);
}

.faq__question::after {
  content: '+';
  font-size: 1.4rem;
  color: var(--color-primary);
  font-weight: 300;
  transition: transform 0.3s ease;
}

details[open] .faq__question::after {
  content: '−';
  transform: rotate(180deg);
}

.faq__answer {
  padding: 0 1.5rem 1.25rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
}

/* --- Contact ---------------------------- */
.contact__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2rem, 6vw, 5rem);
  align-items: start;
}

.contact__methods {
  margin-top: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.contact__method {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.contact__method svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

.contact__form {
  background: var(--color-white);
  padding: 2.5rem;
  border-radius: 2px;
  border: 1px solid var(--color-border);
}

.form__group {
  margin-bottom: 1.25rem;
}

.form__group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.form__group input,
.form__group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  border: 1px solid var(--color-border);
  border-radius: 2px;
  background: var(--color-light);
  color: var(--color-dark);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form__group input:focus,
.form__group textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(200, 164, 92, 0.1);
}

.form__group textarea {
  resize: vertical;
}

.form__note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.75rem;
}

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

.footer__grid {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
}

.footer__brand p {
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

.footer__links {
  display: flex;
  gap: 2rem;
}

.footer__links a {
  font-size: 0.85rem;
  transition: color var(--transition);
}

.footer__links a:hover {
  color: var(--color-primary);
}

.footer__copy p {
  font-size: 0.8rem;
  opacity: 0.5;
}

/* --- Scroll Animations ------------------ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s var(--ease-out), transform 0.8s var(--ease-out);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Keyframes -------------------------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes bounce {
  0%, 20%, 50%, 80%, 100% { transform: translateX(-50%) translateY(0); }
  40% { transform: translateX(-50%) translateY(-8px); }
  60% { transform: translateX(-50%) translateY(-4px); }
}

/* --- Mobile Menu ------------------------ */
@media (max-width: 768px) {
  .nav__list {
    position: fixed;
    inset: 0;
    background: rgba(253, 251, 247, 0.98);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.35s ease;
  }

  .nav__list.active {
    opacity: 1;
    pointer-events: auto;
  }

  .nav__list .nav__link {
    font-size: 1.5rem;
    font-family: var(--font-display);
    color: var(--color-dark);
  }

  .nav__burger {
    display: flex;
  }

  .about__grid { grid-template-columns: 1fr; }
  .about__image { order: -1; }
  .about__image img { height: 280px; }

  .product__grid { grid-template-columns: 1fr; }
  .product__grid--reverse { direction: ltr; }
  .product__image img { height: 280px; }

  .advantages__grid { grid-template-columns: 1fr; gap: 1rem; }

  .contact__grid { grid-template-columns: 1fr; }
  .contact__form { padding: 1.5rem; }

  .footer__links { flex-wrap: wrap; justify-content: center; gap: 1.25rem; }
}

/* --- Larger Screens --------------------- */
@media (min-width: 1600px) {
  .container { max-width: 1300px; }
}