/* ==========================================================================
   Наталья Бойко — nutrition consultant site
   Design tokens per design_handoff_natalyboyko/README.md
   ========================================================================== */

:root {
  --bg-page: #FDF9F4;
  --bg-hero: #F7EDE2;
  --bg-section: #F7F3EA;
  --bg-icon-sage: #EFF2E6;
  --accent-peach: #E8A87C;
  --accent-sage: #A3B18A;
  --text-main: #4A443C;
  --text-muted: #7A7062;
  --text-soft: #8A7F71;
  --nav-color: #5C554A;
  --placeholder-text: #B7AC9D;
  --placeholder-border: #D8CFC2;

  --shadow-cta: 0 8px 20px rgba(163, 177, 138, 0.4);
  --shadow-badge: 0 8px 20px rgba(74, 68, 60, 0.12);

  --radius-card-desktop: 28px;
  --radius-card-mobile: 20px;
  --radius-button: 17px;
  --radius-pill: 999px;

  --container-width: 1180px;
}

/* -------------------- Reset -------------------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body, h1, h2, h3, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

html, body {
  overflow-x: hidden;
  max-width: 100%;
}

body {
  background: var(--bg-page);
  color: var(--text-main);
  font-family: 'Nunito', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 64px;
}

.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  left: 16px; top: -60px;
  background: var(--accent-sage);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--radius-button);
  z-index: 1000;
  transition: top .2s ease;
  font-weight: 700;
}
.skip-link:focus { top: 16px; }

/* -------------------- Typography -------------------- */
h1, h2, h3 { font-weight: 800; color: var(--text-main); }
h1 { font-size: 44px; line-height: 1.2; }
h2 { font-size: 30px; line-height: 1.25; }
h3 { font-size: 17px; line-height: 1.3; }
p { color: var(--text-muted); }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--accent-peach);
  background: #fff;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-badge);
}

/* -------------------- Header -------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 500;
  background: rgba(253, 249, 244, 0.98);
  border-bottom: 1px solid rgba(74, 68, 60, 0.06);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 64px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 19px;
  font-weight: 800;
  color: var(--text-main);
}

.logo__blob {
  width: 36px;
  height: 36px;
  flex: none;
  background: var(--accent-peach);
  border-radius: 50% 50% 50% 12%;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 40px;
}

.main-nav__list {
  display: flex;
  gap: 32px;
}

.main-nav__link {
  font-size: 16.5px;
  font-weight: 700;
  color: var(--nav-color);
  padding-bottom: 3px;
  border-bottom: 3px solid transparent;
  transition: color .2s ease, border-color .2s ease;
}

.main-nav__link:hover,
.main-nav__link:focus-visible {
  color: var(--text-main);
}

.main-nav__link[aria-current="page"] {
  color: var(--text-main);
  border-bottom-color: var(--accent-peach);
}

/* Language switcher */
.lang-switch {
  display: inline-flex;
  background: var(--bg-hero);
  border-radius: var(--radius-pill);
  padding: 4px;
  gap: 2px;
}

.lang-switch__link {
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 13.5px;
  font-weight: 800;
  color: var(--text-soft);
  transition: background .2s ease, color .2s ease, box-shadow .2s ease;
}

.lang-switch__link[aria-current="true"] {
  background: #fff;
  color: var(--text-main);
  box-shadow: var(--shadow-badge);
}

.burger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.burger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}

.burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* -------------------- Buttons -------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 30px;
  border-radius: var(--radius-button);
  font-weight: 800;
  font-size: 16px;
  transition: transform .18s ease, box-shadow .18s ease, filter .18s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-sage);
  color: #fff;
  box-shadow: var(--shadow-cta);
}

.btn-primary:hover, .btn-primary:focus-visible {
  filter: brightness(0.94);
  transform: translateY(-1px);
}

.btn-block { width: 100%; }

.contact-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.contact-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--text-soft);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 18px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-badge);
  transition: color .2s ease, transform .18s ease;
}

.contact-pill:hover, .contact-pill:focus-visible {
  color: var(--text-main);
  transform: translateY(-1px);
}

.contact-pill svg { width: 16px; height: 16px; flex: none; }

/* -------------------- Hero -------------------- */
.hero {
  background: var(--bg-hero);
  position: relative;
  overflow: hidden;
  padding: 44px 64px 60px;
}

.hero__decor {
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.hero__decor--1 {
  width: 420px; height: 420px;
  background: rgba(232, 168, 124, 0.16);
  top: -160px; right: -120px;
}

.hero__decor--2 {
  width: 320px; height: 320px;
  background: rgba(163, 177, 138, 0.18);
  bottom: -140px; left: -100px;
}

.hero__inner {
  position: relative;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  grid-template-areas:
    "eyebrow media"
    "title   media"
    "text    media"
    "actions media"
    "contacts media";
  column-gap: 48px;
  row-gap: 0;
  align-items: center;
  max-width: var(--container-width);
  margin: 0 auto;
}

.hero__inner > .eyebrow { grid-area: eyebrow; }
.hero__inner > .hero__title { grid-area: title; margin-top: 20px; }
.hero__inner > .hero__text { grid-area: text; margin-top: 20px; }
.hero__inner > .hero__actions { grid-area: actions; margin-top: 28px; }
.hero__inner > .hero__contacts { grid-area: contacts; margin-top: 18px; }
.hero__inner > .hero__media { grid-area: media; }

.hero__title { max-width: 560px; }
.hero__text { font-size: 17.5px; max-width: 520px; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

.hero__media {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.hero__photo-wrap {
  position: relative;
  width: 360px;
  height: 360px;
}

.hero__photo-wrap::before {
  content: '';
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.hero__photo {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 8px solid var(--bg-page);
}

.cert-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #fff;
  color: var(--text-main);
  font-size: 13.5px;
  font-weight: 800;
  padding: 12px 20px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-badge);
}

.cert-badge svg { width: 18px; height: 18px; color: var(--accent-sage); flex: none; }

/* -------------------- Sections -------------------- */
.section { padding: 52px 64px; }
.section--sage { background: var(--bg-section); }
.section--page { background: var(--bg-page); }
.section--hero-tint { background: var(--bg-hero); }

.section__inner {
  max-width: var(--container-width);
  margin: 0 auto;
}

.section__header { max-width: 720px; }
.section__header--center { margin: 0 auto; text-align: center; }

.section__kicker {
  display: block;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--accent-sage);
  margin-bottom: 10px;
}

.section__lead {
  margin-top: 14px;
  font-size: 16.5px;
}

/* About (short, on home) */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 56px;
  align-items: center;
}

.about-grid__text > * + * { margin-top: 16px; }

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 20px;
}

.chip {
  display: inline-flex;
  align-items: center;
  background: #fff;
  color: var(--text-main);
  font-size: 13.5px;
  font-weight: 800;
  padding: 9px 16px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-badge);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 22px;
  font-weight: 800;
  color: var(--text-main);
  border-bottom: 2px solid var(--accent-peach);
  padding-bottom: 2px;
}

/* Cards grid (services) */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.card {
  background: #fff;
  border-radius: var(--radius-card-desktop);
  padding: 30px 26px;
  border-top: 5px solid var(--accent-sage);
  box-shadow: 0 4px 16px rgba(74, 68, 60, 0.05);
}

.card--peach { border-top-color: var(--accent-peach); }

.card__icon {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--bg-icon-sage);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}

.card--peach .card__icon { background: var(--bg-hero); }

.card__icon-blob {
  width: 14px;
  height: 14px;
  border-radius: 50% 50% 50% 10%;
  background: var(--accent-sage);
}

.card--peach .card__icon-blob { background: var(--accent-peach); }

.card__title { margin-bottom: 8px; }
.card__desc { font-size: 14.5px; line-height: 1.65; }

/* Card list variant (mobile services — horizontal cards) handled via media query */

/* Steps (how-i-work) */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.step-card {
  background: #fff;
  border-radius: var(--radius-card-desktop);
  padding: 30px 24px;
  border-top: 5px solid var(--accent-sage);
  box-shadow: 0 4px 16px rgba(74, 68, 60, 0.05);
}

.step-card--peach { border-top-color: var(--accent-peach); }

.step-card__number {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--bg-icon-sage);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 18px;
  color: var(--accent-sage);
  margin-bottom: 18px;
}

.step-card--peach .step-card__number { background: var(--bg-hero); color: var(--accent-peach); }

.step-card__title { margin-bottom: 8px; }
.step-card__desc { font-size: 14.5px; line-height: 1.65; }

/* CTA banner */
.cta-banner {
  background: var(--bg-hero);
  border-radius: 32px;
  padding: 40px 48px;
  margin-top: 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-banner h2 { max-width: 460px; }

/* Intro (about / how-i-work pages) */
.intro-grid {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 56px;
  align-items: center;
}

.intro-photo-wrap {
  position: relative;
  width: 320px;
  height: 320px;
  flex: none;
}

.intro-photo-wrap::before {
  content: '';
  position: absolute;
  inset: -14px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.5);
}

.intro-photo {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 8px solid var(--bg-page);
}

.bio-text > * + * { margin-top: 16px; }
.bio-text p { font-size: 16.5px; }

.intro-simple { max-width: 640px; }
.intro-simple > * + * { margin-top: 16px; }

/* Certificates */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}

.cert-card {
  background: #fff;
  border-radius: var(--radius-card-desktop);
  overflow: hidden;
  box-shadow: 0 4px 16px rgba(74, 68, 60, 0.05);
  display: flex;
  flex-direction: column;
}

.cert-card__img-wrap {
  height: 250px;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
}

.cert-card__img-wrap img {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
}

.cert-card__caption {
  padding: 18px 20px 22px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--text-muted);
  line-height: 1.5;
}

.cert-card--placeholder {
  border: 2px dashed var(--placeholder-border);
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 30px 20px;
  color: var(--placeholder-text);
  font-size: 14px;
  font-weight: 700;
  min-height: 250px;
  box-shadow: none;
}

/* -------------------- Floating mobile CTA -------------------- */
.floating-cta {
  display: none;
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 600;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: var(--accent-sage);
  color: #fff;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-cta);
}

.floating-cta svg { width: 26px; height: 26px; }

/* -------------------- Footer -------------------- */
.site-footer {
  background: var(--bg-page);
  border-top: 1px solid rgba(74, 68, 60, 0.08);
  padding: 40px 64px;
}

.site-footer__inner {
  max-width: var(--container-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.site-footer__brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  color: var(--text-main);
}

.site-footer__brand .logo__blob { width: 26px; height: 26px; }

.site-footer__meta {
  font-size: 13.5px;
  color: var(--text-soft);
}

.social-row {
  display: flex;
  gap: 14px;
}

.social-row a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-soft);
  box-shadow: var(--shadow-badge);
  transition: color .2s ease, transform .18s ease;
}

.social-row a:hover, .social-row a:focus-visible {
  color: var(--accent-sage);
  transform: translateY(-1px);
}

.social-row svg { width: 17px; height: 17px; }

/* -------------------- Scroll reveal -------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .6s ease, transform .6s ease;
}

[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* -------------------- Tablet (≤1024px) -------------------- */
@media (max-width: 1024px) {
  .container,
  .site-header__inner,
  .hero,
  .section,
  .site-footer { padding-left: 40px; padding-right: 40px; }

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

  .hero__photo-wrap { width: 300px; height: 300px; }
  h1 { font-size: 38px; }
}

/* -------------------- Mobile (≤768px) -------------------- */
@media (max-width: 768px) {
  .container,
  .site-header__inner,
  .hero,
  .section,
  .site-footer { padding-left: 20px; padding-right: 20px; }

  .site-header__inner { padding-top: 14px; padding-bottom: 14px; }

  .main-nav {
    position: fixed;
    inset: 0;
    top: 0;
    background: var(--bg-page);
    flex-direction: column;
    align-items: flex-start;
    justify-content: flex-start;
    gap: 32px;
    padding: 96px 28px 32px;
    transform: translateX(100%);
    transition: transform .3s ease;
    z-index: 400;
  }

  .main-nav.is-open { transform: translateX(0); }

  .main-nav__list {
    flex-direction: column;
    gap: 24px;
    width: 100%;
  }

  .main-nav__link { font-size: 20px; }

  .burger { display: flex; }

  .hero { padding: 32px 20px 40px; }

  .hero__inner {
    grid-template-columns: 1fr;
    grid-template-areas:
      "eyebrow"
      "media"
      "title"
      "text"
      "actions"
      "contacts";
    row-gap: 20px;
    text-align: center;
  }

  .hero__inner > .hero__title,
  .hero__inner > .hero__text,
  .hero__inner > .hero__actions,
  .hero__inner > .hero__contacts { margin-top: 0; }

  .hero__title { margin-left: auto; margin-right: auto; font-size: 27px; }
  .hero__text { margin-left: auto; margin-right: auto; font-size: 15px; }

  .hero__actions { justify-content: center; }
  .hero__actions .btn { width: 100%; }
  .hero__contacts { justify-content: center; }
  .contact-pills { justify-content: center; }

  .hero__photo-wrap { width: 190px; height: 190px; }

  .section { padding: 36px 20px; }

  h1 { font-size: 25px; }
  h2 { font-size: 22px; }

  .about-grid { grid-template-columns: 1fr; gap: 28px; text-align: center; }
  .chip-row { justify-content: center; }

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

  .card {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px;
    border-top: none;
    border-left: 4px solid var(--accent-sage);
    border-radius: var(--radius-card-mobile);
  }

  .card--peach { border-left-color: var(--accent-peach); }
  .card__icon { margin-bottom: 0; flex: none; }
  .card__body { flex: 1; min-width: 0; }

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

  .step-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 18px 20px;
    border-top: none;
    border-left: 4px solid var(--accent-sage);
    border-radius: var(--radius-card-mobile);
  }

  .step-card--peach { border-left-color: var(--accent-peach); }
  .step-card__number { margin-bottom: 0; flex: none; width: 38px; height: 38px; font-size: 16px; }
  .step-card__body { flex: 1; min-width: 0; }

  .cta-banner { flex-direction: column; text-align: center; padding: 32px 24px; border-radius: 24px; }
  .cta-banner .btn { width: 100%; }

  .intro-grid { grid-template-columns: 1fr; text-align: center; }
  .intro-photo-wrap { width: 180px; height: 180px; margin: 0 auto; }

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

  .floating-cta { display: flex; }

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

@media (max-width: 380px) {
  .hero__title, h1 { font-size: 24px; }
}