/* ========== Variables ========== */
:root {
  --color-bg: #f6f5f1;
  --color-primary: #b37a3d;
  --color-cta: #6a3601;
  --color-accent: #a3723e;
  --color-text: #4b4b4b;
  --color-text-secondary: #7c7c7c;
  --color-card: #eee9e3;
  --color-footer: #3b2916;
  --color-white: #ffffff;

  --font: 'Inter', sans-serif;
  --radius-block: 40px;
  --radius-btn: 100px;
  --radius-badge: 23px;
  --radius-card: 24px;

  --container: 1320px;
  --gap: 24px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.5;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input {
  font-family: inherit;
}

/* ========== Utilities ========== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: 44px;
  font-weight: 600;
  line-height: 1.25;
  color: var(--color-text);
  margin-bottom: 48px;
  text-align: center;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 500;
  border-radius: var(--radius-btn);
  padding: 14px 36px;
  height: 52px;
  transition: opacity 0.2s, transform 0.2s, background-color 0.2s, color 0.2s;
  white-space: nowrap;
}

.btn:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

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

.btn--outline {
  background: transparent;
  color: var(--color-accent);
  border: 2px solid var(--color-accent);
}

.btn--outline:hover {
  background-color: var(--color-accent);
  color: var(--color-white);
  opacity: 1;
}

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

.btn--white:hover {
  background-color: #f0ece6;
  opacity: 1;
}

/* ========== Header ========== */
.header {
  padding: 34px 0 0;
}

.header__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.header__logo img {
  display: block;
  width: 198px;
  height: 89px;
  object-fit: contain;
}

.header__nav {
  margin-top: 48px;
}

.header__nav-list {
  display: flex;
  gap: 34px;
}

.header__nav-link {
  font-size: 17px;
  font-weight: 500;
  color: var(--color-text);
  transition: color 0.2s;
}

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

.header__burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 36px;
  height: 36px;
  justify-content: center;
  align-items: center;
}

.header__burger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ========== Hero ========== */
.hero {
  padding: 48px 0 0;
}

.hero__block {
  background-color: var(--color-primary);
  border-radius: var(--radius-block);
  padding: 32px;
  display: flex;
  align-items: stretch;
  gap: 94px;
  overflow: hidden;
  position: relative;
  min-height: 538px;
}

.hero__content {
  flex: 1;
  max-width: 635px;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  padding-top: 0;
}

.hero__title {
  font-size: 38px;
  font-weight: 600;
  line-height: 1.16;
  color: var(--color-white);
  margin-bottom: 48px;
}

.hero__subtitle {
  font-size: 32px;
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-white);
  margin-bottom: auto;
}

.hero__subtitle strong {
  font-weight: 800;
}

.hero__content .btn {
  align-self: stretch;
}

/* Hero card stack */
.hero__cards {
  position: relative;
  width: 492px;
  height: 474px;
  flex-shrink: 0;
}

.hero__card {
  position: absolute;
  width: 394px;
  height: 394px;
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: 0 3px 8px -1px rgba(17, 17, 17, 0.05), 0 10px 34px -2px rgba(0, 0, 0, 0.08);
}

.hero__card--back {
  background-color: #c8b7a5;
  top: 74px;
  left: 0;
  backdrop-filter: blur(5px);
}

.hero__card--mid {
  background-color: #dbcebe;
  top: 2px;
  left: 108px;
  transform: rotate(13deg);
  backdrop-filter: blur(5px);
}

.hero__card--front {
  top: 53px;
  left: 45px;
  transform: rotate(4deg);
}

.hero__card-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: var(--radius-card);
}

.hero__like-card {
  position: absolute;
  right: 24px;
  bottom: 98px;
  width: 88px;
  height: 111px;
  background: rgba(253, 253, 253, 0.89);
  border-radius: var(--radius-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  z-index: 10;
}

.hero__like-icon {
  width: 44px;
  height: 44px;
}

.hero__like-price {
  width: 27px;
  height: 12px;
}

/* ========== Steps ========== */
.steps {
  padding: 120px 0;
}

.steps__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.steps__card {
  background-color: var(--color-card);
  border-radius: var(--radius-block);
  padding: 32px 36px;
  text-align: center;
  min-height: 320px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.steps__badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-badge);
  background-color: var(--color-accent);
  color: var(--color-white);
  font-size: 24px;
  font-weight: 400;
  line-height: 1.2;
  margin-bottom: 24px;
}

.steps__card-title {
  font-size: 32px;
  font-weight: 500;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: auto;
}

.steps__card-text {
  font-size: 20px;
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.26;
  margin-top: 24px;
}

/* ========== Categories ========== */
.categories {
  padding: 0 0 120px;
}

.categories__subtitle {
  text-align: center;
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.35;
  margin-top: -14px;
  margin-bottom: 48px;
}

.categories__item {
  display: flex;
  align-items: stretch;
  gap: var(--gap);
  margin-bottom: var(--gap);
}

.categories__item:last-child {
  margin-bottom: 0;
}

.categories__item--reverse {
  flex-direction: row-reverse;
}

.categories__img-wrap {
  flex: 0 0 66.06%;
  border-radius: var(--radius-block);
  overflow: hidden;
  min-height: 424px;
}

.categories__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.categories__info {
  flex: 0 0 calc(33.94% - var(--gap));
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 0;
}

.categories__name {
  font-size: 36px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 24px;
  line-height: 1.22;
}

.categories__desc {
  font-size: 24px;
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.3;
  margin-bottom: 48px;
}

.categories__info .btn--outline {
  align-self: flex-start;
  font-size: 18px;
}

.categories__item--reverse .categories__info .btn--outline {
  align-self: flex-end;
}

/* ========== Benefits ========== */
.benefits {
  padding: 0 0 120px;
}

.benefits__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--gap);
}

.benefits__item {
  text-align: center;
}

.benefits__img-wrap {
  border-radius: var(--radius-block);
  overflow: hidden;
  height: 320px;
  margin-bottom: 24px;
}

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

.benefits__label {
  font-size: 28px;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.28;
}

/* ========== CTA ========== */
.cta {
  padding: 0 0 64px;
}

.cta__block {
  border-radius: var(--radius-block);
  overflow: hidden;
  position: relative;
  min-height: 538px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.cta__bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  pointer-events: none;
}

.cta__content {
  position: relative;
  z-index: 2;
  text-align: center;
}

.cta__title {
  font-size: 38px;
  font-weight: 500;
  color: var(--color-white);
  margin-bottom: 16px;
  line-height: 1.16;
}

/* ========== Footer ========== */
.footer {
  background-color: var(--color-footer);
  padding: 64px 0;
}

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

.footer__logo {
  width: 198px;
  height: 89px;
  object-fit: contain;
}

/* ========== Popup ========== */
.popup {
  position: fixed;
  inset: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s, visibility 0.3s;
}

.popup.is-open {
  opacity: 1;
  visibility: visible;
}

.popup__overlay {
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  cursor: pointer;
}

.popup__card {
  position: relative;
  background-color: var(--color-white);
  border-radius: var(--radius-block);
  padding: 48px;
  width: 100%;
  max-width: 520px;
  max-height: 90vh;
  overflow-y: auto;
  transform: translateY(20px);
  transition: transform 0.3s;
  z-index: 1;
}

.popup.is-open .popup__card {
  transform: translateY(0);
}

.popup__close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--color-text-secondary);
  transition: background-color 0.2s, color 0.2s;
}

.popup__close:hover {
  background-color: var(--color-card);
  color: var(--color-text);
}

.popup__title {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-text);
  margin-bottom: 8px;
}

.popup__desc {
  font-size: 15px;
  color: var(--color-text-secondary);
  margin-bottom: 32px;
  line-height: 1.5;
}

/* Form */
.form-group {
  margin-bottom: 20px;
}

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-input {
  width: 100%;
  padding: 14px 18px;
  font-size: 15px;
  border: 2px solid #e0dbd4;
  border-radius: 16px;
  background-color: var(--color-white);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.2s;
}

.form-input::placeholder {
  color: #c0b8ae;
}

.form-input:focus {
  border-color: var(--color-accent);
}

.form-input.is-error {
  border-color: #d44;
}

.form-error {
  display: block;
  font-size: 13px;
  color: #d44;
  margin-top: 4px;
  min-height: 18px;
}

/* Radio group (contact method chips) */
.radio-group {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.radio-option {
  cursor: pointer;
}

.radio-option input[type="radio"] {
  display: none;
}

.radio-label {
  display: inline-block;
  padding: 10px 18px;
  font-size: 14px;
  border: 2px solid #e0dbd4;
  border-radius: 12px;
  transition: border-color 0.2s, background-color 0.2s;
}

.radio-option input[type="radio"]:checked + .radio-label {
  border-color: var(--color-accent);
  background-color: rgba(163, 114, 62, 0.08);
  color: var(--color-accent);
  font-weight: 600;
}

.popup__submit {
  width: 100%;
  margin-top: 8px;
}

.popup__submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Success state */
.popup__success {
  text-align: center;
  padding: 24px 0;
}

.popup__success-icon {
  margin-bottom: 24px;
}

.popup__success .popup__title {
  margin-bottom: 12px;
}

.popup__success .popup__desc {
  margin-bottom: 28px;
}

.popup__success .btn {
  min-width: 160px;
}

/* ========== Mobile ========== */
@media (max-width: 768px) {
  .container {
    padding: 0 24px;
  }

  .section-title {
    font-size: 28px;
    margin-bottom: 32px;
  }

  /* Header mobile */
  .header {
    padding: 24px 0 0;
  }

  .header__inner {
    flex-direction: row;
    justify-content: space-between;
    align-items: center;
  }

  .header__logo img {
    width: 49px;
    height: 22px;
  }

  .header__burger {
    display: flex;
  }

  .header__nav {
    position: fixed;
    top: 70px;
    left: 0;
    right: 0;
    background-color: var(--color-bg);
    padding: 24px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.08);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform 0.3s, opacity 0.3s, visibility 0.3s;
    z-index: 99;
    margin-top: 0;
  }

  .header__nav.is-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .header__nav-list {
    flex-direction: column;
    gap: 20px;
  }

  .header__nav-link {
    font-size: 18px;
  }

  /* Burger animation */
  .header__burger.is-active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

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

  .header__burger.is-active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  /* Hero mobile */
  .hero {
    padding: 20px 0 0;
  }

  .hero__block {
    flex-direction: column;
    padding: 32px;
    min-height: auto;
    gap: 32px;
  }

  .hero__content {
    max-width: 100%;
    order: 2;
  }

  .hero__title {
    font-size: 24px;
    margin-bottom: 24px;
  }

  .hero__subtitle {
    font-size: 18px;
    margin-bottom: 32px;
  }

  .hero__btn {
    font-size: 15px;
    padding: 14px 24px;
    width: 100%;
  }

  .hero__cards {
    width: 316px;
    height: 307px;
    order: 1;
    align-self: center;
  }

  .hero__card {
    width: 254px;
    height: 254px;
  }

  .hero__card--back {
    top: 46px;
    left: 0;
  }

  .hero__card--mid {
    top: 0;
    left: 70px;
    width: 310px;
    height: 307px;
  }

  .hero__card--front {
    top: 32px;
    left: 28px;
    width: 271px;
    height: 271px;
  }

  .hero__like-card {
    width: 56px;
    height: 71px;
    right: 0;
    bottom: 20px;
  }

  .hero__like-icon {
    width: 29px;
    height: 29px;
  }

  .hero__like-price {
    width: 17px;
    height: 7px;
  }

  /* Steps mobile */
  .steps {
    padding: 64px 0;
  }

  .steps__grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .steps__card {
    min-height: 292px;
    padding: 32px 32px;
  }

  .steps__card-title {
    font-size: 24px;
  }

  .steps__card-text {
    font-size: 18px;
  }

  /* Categories mobile */
  .categories {
    padding: 0 0 48px;
  }

  .categories__subtitle {
    margin-bottom: 32px;
    font-size: 15px;
  }

  .categories__item,
  .categories__item--reverse {
    flex-direction: column;
    gap: 0;
    margin-bottom: 16px;
  }

  .categories__img-wrap {
    flex: none;
    width: 100%;
    min-height: 290px;
    border-radius: var(--radius-block);
  }

  .categories__info {
    flex: none;
    width: 100%;
    padding: 24px 0;
    text-align: center;
  }

  .categories__name {
    font-size: 28px;
    margin-bottom: 8px;
  }

  .categories__desc {
    font-size: 18px;
    margin-bottom: 16px;
  }

  .categories__info .btn--outline,
  .categories__item--reverse .categories__info .btn--outline {
    align-self: center;
    width: 100%;
  }

  /* Benefits mobile */
  .benefits {
    padding: 0 0 48px;
  }

  .benefits__grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .benefits__img-wrap {
    height: 292px;
  }

  .benefits__label {
    font-size: 22px;
  }

  /* CTA mobile */
  .cta {
    padding: 0 0 48px;
  }

  .cta__block {
    min-height: 346px;
  }

  .cta__title {
    font-size: 24px;
    padding: 0 16px;
  }

  .cta__content .btn--white {
    font-size: 15px;
  }

  /* Footer mobile */
  .footer {
    padding: 32px 0;
  }

  .footer__logo {
    width: 49px;
    height: 22px;
  }

  /* Popup mobile */
  .popup__card {
    margin: 16px;
    padding: 32px 24px;
    border-radius: 24px;
    max-height: calc(100vh - 32px);
  }

  .popup__title {
    font-size: 24px;
  }

  .btn {
    font-size: 16px;
  }
}