/* ===== CSS VARIABLES ===== */
:root {
  --primary-color: #5A9F77;
  --secondary-color: #B3D0D9;
  --accent-color: #7DBFA0;
  --light-color: #f0f8f3;
  --dark-color: #2e5c42;
  --gradient-primary: linear-gradient(135deg, #7DBFA0 0%, #5A9F77 100%);
  --hover-color: #3d7a57;
  --background-color: #f7fdf9;
  --text-color: #3a4a3f;
  --border-color: rgba(90,159,119,0.2);
  --divider-color: rgba(90,159,119,0.12);
  --shadow-color: rgba(90,159,119,0.12);
  --highlight-color: #F0A55A;
  --main-font: 'Merriweather', serif;
  --alt-font: 'Lato', sans-serif;
  --radius-sm: 6px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-btn: 8px;
  --shadow-card: 0 2px 12px rgba(90,159,119,0.10);
  --shadow-hover: 0 6px 24px rgba(90,159,119,0.18);
}

/* ===== RESET & BASE ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--alt-font);
  background-color: var(--background-color);
  color: var(--text-color);
  font-size: clamp(14px, 4vw, 17px);
  line-height: 1.7;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary-color); text-decoration: none; }
a:hover { color: var(--hover-color); }

h1, h2, h3, h4 {
  font-family: var(--main-font);
  color: var(--dark-color);
  line-height: 1.25;
}
h1 { font-size: clamp(28px, 6vw, 56px); }
h2 { font-size: clamp(22px, 4.5vw, 38px); margin-bottom: 16px; }
h3 { font-size: clamp(17px, 3vw, 24px); }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 16px;
}

/* ===== HEADER ===== */
header {
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  padding: 14px 16px;
  position: static;
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo a { display: flex; align-items: center; }
.logo img { height: 40px; width: auto; }

.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  min-height: 44px;
  min-width: 44px;
  justify-content: center;
  align-items: center;
  border-radius: var(--radius-sm);
}
.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--primary-color);
  border-radius: 2px;
  transition: opacity 0.2s;
}
.navigation {
  display: none;
  position: absolute;
  top: 68px;
  left: 0;
  right: 0;
  background: #fff;
  border-top: 1px solid var(--border-color);
  z-index: 100;
  padding: 16px;
  box-shadow: var(--shadow-card);
}
.navigation.open { display: block; }
.navigation ul { list-style: none; display: flex; flex-direction: column; gap: 4px; }
.navigation ul li a {
  display: block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--text-color);
  font-family: var(--alt-font);
  font-size: 15px;
  font-weight: 500;
  transition: background 0.2s, color 0.2s;
  min-height: 44px;
  display: flex;
  align-items: center;
}
.navigation ul li a:hover { background: var(--light-color); color: var(--primary-color); }

@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .navigation {
    display: block !important;
    position: static;
    background: none;
    border: none;
    padding: 0;
    box-shadow: none;
  }
  .navigation ul { flex-direction: row; gap: 4px; }
  .navigation ul li a { padding: 8px 14px; }
}

/* ===== HERO — split-color ===== */
.hero {
  min-height: 75vh;
  display: flex;
  flex-direction: column;
}
.hero-left {
  background: var(--gradient-primary);
  flex: 1;
  display: flex;
  align-items: center;
  padding: 48px 16px;
}
.hero-right {
  flex: 1;
  min-height: 240px;
  background-image: url('./img/bg.jpg');
  background-size: cover;
  background-position: center;
}
.hero-content { max-width: 540px; }
.hero-content h1 { color: #fff; margin-bottom: 20px; }
.hero-content p {
  color: rgba(255,255,255,0.90);
  font-size: clamp(15px, 3vw, 18px);
  margin-bottom: 32px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  background: var(--highlight-color);
  color: #fff;
  border-radius: var(--radius-btn);
  font-family: var(--alt-font);
  font-weight: 700;
  font-size: 16px;
  min-height: 44px;
  border: none;
  cursor: pointer;
  transition: background 0.2s, transform 0.2s;
  box-shadow: var(--shadow-card);
}
.btn-primary:hover {
  background: #d98a3a;
  color: #fff;
  transform: translateY(-2px);
}

@media (min-width: 768px) {
  .hero { flex-direction: row; min-height: 80vh; }
  .hero-left { flex: 1; padding: 80px 48px; }
  .hero-right { flex: 1; min-height: auto; }
}

/* ===== RANDOM BLOCK — between intro & features ===== */
.block-warmcold {
  padding: 48px 16px;
  background: linear-gradient(135deg, #e8f5ee 0%, #d6eee4 100%);
}
.block-warmcold-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.warmcold-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.warmcold-card .wc-icon { font-size: 42px; }
.warmcold-card h3 { color: var(--primary-color); }
.warmcold-card p { font-size: 15px; color: var(--text-color); }

@media (min-width: 768px) {
  .block-warmcold { padding: 64px 24px; }
  .block-warmcold-inner { grid-template-columns: repeat(2, 1fr); }
}

/* ===== FEATURES — numbered ===== */
.features {
  padding: 48px 16px;
  background: var(--background-color);
}
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  margin-top: 36px;
}
.feature-item {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  padding: 24px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s, transform 0.2s;
}
.feature-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-3px); }
.feature-num {
  font-family: var(--main-font);
  font-size: clamp(32px, 6vw, 52px);
  color: var(--accent-color);
  font-weight: 700;
  line-height: 1;
  min-width: 56px;
  text-align: center;
}
.feature-text h3 { margin-bottom: 8px; font-size: clamp(16px, 2.5vw, 20px); }
.feature-icon {
  font-size: 36px;
  margin-bottom: 10px;
  text-align: center;
  width: 100%;
  display: block;
}

@media (min-width: 768px) {
  .features { padding: 80px 24px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .features-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ===== IMG+TEXT — img-right ===== */
.img-text-section {
  padding: 48px 16px;
  background: var(--light-color);
}
.img-text-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
  align-items: center;
}
.img-text-content h2 { margin-bottom: 20px; }
.img-text-content p { margin-bottom: 14px; }
.img-text-content ul {
  list-style: none;
  padding: 0;
  margin: 20px 0;
}
.img-text-content ul li {
  padding: 6px 0 6px 28px;
  position: relative;
  font-size: 15px;
}
.img-text-content ul li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-color);
  font-weight: 700;
}
.img-text-img img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  width: 100%;
  object-fit: cover;
  max-height: 420px;
}

@media (min-width: 768px) {
  .img-text-section { padding: 80px 24px; }
  .img-text-inner { grid-template-columns: 55fr 45fr; }
  .img-text-img { order: 2; }
  .img-text-content { order: 1; }
}

/* ===== CHECKLIST ===== */
.checklist-section {
  padding: 48px 16px;
  background: var(--background-color);
}
.checklist-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  margin-top: 28px;
}
.check-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 18px;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}
.check-mark {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--primary-color);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 2px;
}
.check-item p { font-size: 15px; margin: 0; }

@media (min-width: 768px) {
  .checklist-section { padding: 80px 24px; }
  .checklist-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ===== TESTIMONIALS — cards ===== */
.testimonials {
  padding: 48px 16px;
  background: var(--light-color);
}
.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 32px;
}
.testimonial-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-card);
  transition: box-shadow 0.2s;
}
.testimonial-card:hover { box-shadow: var(--shadow-hover); }
.t-stars { color: #f5c842; font-size: 18px; margin-bottom: 12px; }
.t-text { font-size: 15px; color: var(--text-color); margin-bottom: 16px; font-style: italic; }
.t-name { font-weight: 700; font-size: 14px; color: var(--primary-color); }

@media (min-width: 768px) {
  .testimonials { padding: 80px 24px; }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .testimonials-grid { grid-template-columns: repeat(3, 1fr); }
}

/* ===== CONTACT ===== */
.contact {
  padding: 48px 16px;
  background: var(--background-color);
}
.contact-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
}
.contact-info h2 { margin-bottom: 20px; }
.contact-info p { margin-bottom: 12px; font-size: 15px; }
.contact-info a { color: var(--primary-color); }
.contact-form-wrap { width: 100%; }
.contact-form-wrap h3 { margin-bottom: 20px; font-size: clamp(16px, 2.5vw, 22px); }
.form-field {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  font-family: var(--alt-font);
  font-size: 15px;
  background: #fff;
  color: var(--text-color);
  margin-bottom: 14px;
  min-height: 44px;
  transition: border-color 0.2s;
}
.form-field:focus { outline: none; border-color: var(--primary-color); }
textarea.form-field { min-height: 100px; resize: vertical; }
.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--primary-color);
  color: #fff;
  border: none;
  border-radius: var(--radius-btn);
  font-family: var(--alt-font);
  font-weight: 700;
  font-size: 16px;
  min-height: 44px;
  cursor: pointer;
  transition: background 0.2s;
}
.btn-submit:hover { background: var(--hover-color); }

@media (min-width: 768px) {
  .contact { padding: 80px 24px; }
  .contact-inner { grid-template-columns: 1fr; }
  .contact-block {
    max-width: 80%;
    margin: 0 auto;
  }
}
@media (min-width: 1024px) {
  .contact-inner { grid-template-columns: 1fr 1fr; max-width: 80%; margin: 0 auto; }
}

/* ===== FAQ ===== */
.faq {
  padding: 48px 16px;
  background: var(--light-color);
}
.faq-list { margin-top: 32px; display: flex; flex-direction: column; gap: 20px; }
.faq-item {
  background: #fff;
  border-radius: var(--radius-md);
  padding: 22px 24px;
  box-shadow: var(--shadow-card);
}
.faq-item h3 {
  font-size: clamp(15px, 2.5vw, 18px);
  color: var(--primary-color);
  margin-bottom: 10px;
}
.faq-item p { font-size: 15px; }

@media (min-width: 768px) { .faq { padding: 80px 24px; } }

/* ===== FOOTER ===== */
footer {
  background: var(--dark-color);
  color: rgba(255,255,255,0.85);
  padding: 40px 16px 24px;
}
footer img[alt="logo"] { filter: brightness(0) invert(1); }
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}
.footer-logo .logo img { height: 36px; }
.footer-nav ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-nav ul li a {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  transition: color 0.2s;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}
.footer-nav ul li a:hover { color: #fff; }
.footer-copy {
  border-top: 1px solid rgba(255,255,255,0.15);
  margin-top: 24px;
  padding-top: 20px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 768px) {
  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
    align-items: center;
  }
  .footer-nav ul { flex-direction: row; flex-wrap: wrap; gap: 4px 20px; justify-content: flex-end; }
}

/* ===== SECTION TITLE ===== */
.section-title { text-align: center; margin-bottom: 8px; }
.section-sub { text-align: center; color: #6b7c74; font-size: 16px; margin-bottom: 8px; }

/* ===== INTRO ===== */
.intro {
  padding: 48px 16px;
  background: #fff;
}
.intro-inner {
  max-width: 800px;
  margin: 0 auto;
  text-align: center;
}
.intro-inner h2 { margin-bottom: 16px; }
.intro-inner p { font-size: clamp(15px, 2.5vw, 17px); color: var(--text-color); }

@media (min-width: 768px) { .intro { padding: 80px 24px; } }

/* ===== DECORATIVE pattern-bg ===== */
.hero-left::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.07) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}
.hero-left { position: relative; }