/* style.css — Кремово-голубая палитра для АНО "Корпорация Тепло" */

:root {
  /* Кремовые оттенки */
  --cream-light: #FDFBF7;   /* фон страницы */
  --cream-warm: #FEF9EB;    /* теплый крем */
  --cream-dark: #F3ECDB;
  --cream-accent: #FFF3D6;
  
  /* Голубые оттенки */
  --blue-soft: #D4EFF7;
  --blue-light: #A3D5E0;
  --blue-mid: #7EC8E3;
  --blue-main: #5B9BD5;      /* основной акцент */
  --blue-deep: #2E75B6;
  
  /* Нейтральные */
  --text-dark: #2A3B4C;
  --text-soft: #4A5C6C;
  --white: #ffffff;
  --shadow-sm: 0 10px 25px -5px rgba(0, 20, 30, 0.05), 0 8px 10px -6px rgba(0, 0, 0, 0.02);
  --shadow-hover: 0 20px 30px -8px rgba(91, 155, 213, 0.12);
  --border-radius-card: 24px;
  --border-radius-btn: 60px;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--cream-light);
  color: var(--text-dark);
  line-height: 1.6;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  font-family: 'Rubik', sans-serif;
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* Кнопки */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--border-radius-btn);
  font-weight: 600;
  font-size: 1rem;
  text-decoration: none;
  transition: all 0.25s ease;
  border: 1.5px solid transparent;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  background: transparent;
}

.btn--primary {
  background: var(--blue-main);
  color: white;
  box-shadow: 0 8px 18px -6px rgba(91, 155, 213, 0.35);
}
.btn--primary:hover {
  background: var(--blue-deep);
  transform: translateY(-2px);
  box-shadow: 0 14px 22px -8px rgba(46, 117, 182, 0.3);
}

.btn--outline {
  background: transparent;
  border-color: var(--blue-light);
  color: var(--blue-deep);
}
.btn--outline:hover {
  background: var(--blue-soft);
  border-color: var(--blue-main);
  transform: translateY(-2px);
}

.btn--large {
  padding: 16px 38px;
  font-size: 1.1rem;
}

.btn--full {
  width: 100%;
}

/* Header */
.header {
  padding: 20px 0;
  background: rgba(253, 251, 247, 0.75);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(163, 213, 224, 0.25);
}

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

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--text-dark);
}

.logo__icon {
  font-size: 28px;
  color: var(--blue-main);
  background: var(--cream-accent);
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
}

.logo__text {
  font-size: 1.5rem;
  font-weight: 500;
  font-family: 'Rubik', sans-serif;
}
.logo__text strong {
  font-weight: 700;
  color: var(--blue-main);
}

.nav__list {
  display: flex;
  list-style: none;
  gap: 36px;
}
.nav__link {
  text-decoration: none;
  color: var(--text-soft);
  font-weight: 500;
  font-size: 1.05rem;
  transition: color 0.2s;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}
.nav__link:hover {
  color: var(--blue-deep);
  border-bottom-color: var(--blue-light);
}

/* Hero */
.hero {
  background: linear-gradient(145deg, #E5F3F9 0%, #FEF9EB 100%);
  padding: 60px 0 20px;
  position: relative;
  margin-bottom: -2px;
}
.hero__container {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  max-width: 920px;
}
.hero__badge {
  display: inline-block;
  background: rgba(255,255,255,0.7);
  backdrop-filter: blur(4px);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--blue-deep);
  margin-bottom: 28px;
  border: 1px solid var(--blue-soft);
  box-shadow: var(--shadow-sm);
}
.hero__badge i {
  margin-right: 8px;
  color: var(--blue-main);
}
.hero__title {
  font-size: 3.8rem;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
}
.text-accent {
  color: var(--blue-main);
  position: relative;
  display: inline-block;
}
.text-accent::after {
  content: '';
  position: absolute;
  bottom: 8px;
  left: 0;
  width: 100%;
  height: 12px;
  background: var(--blue-soft);
  opacity: 0.5;
  z-index: -1;
  border-radius: 20px;
}
.hero__subtitle {
  font-size: 1.3rem;
  color: var(--text-soft);
  max-width: 750px;
  margin-bottom: 36px;
}
.hero__actions {
  display: flex;
  gap: 20px;
  flex-wrap: wrap;
  justify-content: center;
}
.hero__wave svg {
  display: block;
  width: 100%;
  height: 80px;
  margin-top: 30px;
}

/* Sections */
.section {
  padding: 90px 0;
}
.section--alt {
  background: var(--cream-warm);
}
.section--cream {
  background: var(--cream-light);
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-tag {
  display: inline-block;
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--blue-main);
  background: var(--blue-soft);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 16px;
}
.section-title {
  font-size: 2.6rem;
  font-weight: 600;
  color: var(--text-dark);
}

/* About */
.about__grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
  align-items: start;
}
.about__lead {
  font-size: 1.3rem;
  font-weight: 500;
  margin-bottom: 20px;
  color: var(--blue-deep);
}
.about__text p {
  margin-bottom: 20px;
  color: var(--text-soft);
}
.about__stats {
  display: flex;
  gap: 40px;
  margin-top: 30px;
}
.stat-number {
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--blue-main);
  font-family: 'Rubik', sans-serif;
  line-height: 1;
}
.stat-label {
  display: block;
  font-size: 0.95rem;
  color: var(--text-soft);
}
.about__visual {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.about-card {
  background: var(--white);
  padding: 28px;
  border-radius: var(--border-radius-card);
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(163, 213, 224, 0.3);
  transition: all 0.2s;
}
.about-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--blue-light);
}
.about-card__icon {
  font-size: 2.5rem;
  color: var(--blue-main);
  margin-bottom: 18px;
}

/* Projects */
.projects__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}
.project-card {
  background: white;
  padding: 36px 28px;
  border-radius: var(--border-radius-card);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s, box-shadow 0.25s;
  border-bottom: 5px solid transparent;
}
.project-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  border-bottom-color: var(--blue-main);
}
.project-card__icon {
  font-size: 2.6rem;
  color: var(--blue-main);
  margin-bottom: 24px;
  background: var(--cream-accent);
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 20px;
}
.project-card h3 {
  font-size: 1.6rem;
  margin-bottom: 16px;
}
.project-card p {
  color: var(--text-soft);
  margin-bottom: 20px;
}
.project-card__tag {
  display: inline-block;
  background: var(--blue-soft);
  color: var(--blue-deep);
  padding: 4px 14px;
  border-radius: 30px;
  font-size: 0.8rem;
  font-weight: 600;
}

/* Collaboration block */
.collab-block {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 50px;
  align-items: center;
  background: white;
  border-radius: 40px;
  padding: 48px 50px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--blue-soft);
}
.collab-title {
  font-size: 2.4rem;
}
.collab-text {
  font-size: 1.1rem;
  color: var(--text-soft);
  margin: 20px 0 24px;
}
.collab-list {
  list-style: none;
  margin-bottom: 16px;
}
.collab-list li {
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 500;
}
.collab-visual {
  background: linear-gradient(135deg, #E3F0F5, #FEF9EB);
  border-radius: 32px;
  height: 280px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}
.collab-visual__icon {
  font-size: 5.5rem;
  color: var(--blue-main);
  background: white;
  padding: 24px;
  border-radius: 50%;
  box-shadow: var(--shadow-sm);
}
.collab-visual__deco {
  position: absolute;
  width: 120px;
  height: 120px;
  border-radius: 30px;
  background: var(--blue-soft);
  opacity: 0.3;
  top: 30px;
  right: 30px;
  z-index: 0;
}

/* Contact */
.contact__wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
}
.contact__info .section-title {
  margin-bottom: 20px;
}
.contact__text {
  font-size: 1.1rem;
  color: var(--text-soft);
  margin-bottom: 30px;
}
.contact-details {
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 1.05rem;
}
.contact-item i {
  width: 32px;
  height: 32px;
  background: var(--blue-soft);
  color: var(--blue-deep);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
}
.contact-item a {
  color: var(--text-dark);
  text-decoration: none;
  border-bottom: 1px dashed var(--blue-light);
}
.contact__form-card {
  background: white;
  padding: 40px 36px;
  border-radius: 32px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--blue-soft);
}
.contact-form input, 
.contact-form select, 
.contact-form textarea {
  width: 100%;
  padding: 14px 18px;
  margin-bottom: 18px;
  border: 1.5px solid #E0E9EF;
  border-radius: 24px;
  font-family: 'Inter', sans-serif;
  font-size: 1rem;
  background: var(--cream-light);
  transition: border 0.2s;
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--blue-main);
  background: white;
}
.form-note {
  margin-top: 12px;
  font-size: 0.9rem;
  color: var(--text-soft);
  text-align: center;
}

/* Footer */
.footer {
  background: #EAF1F6;
  padding: 50px 0 20px;
  color: var(--text-dark);
}
.footer__container {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 30px;
  margin-bottom: 40px;
}
.footer__brand {
  max-width: 300px;
}
.footer__name {
  font-weight: 700;
  font-size: 1.4rem;
  display: block;
  margin: 12px 0 8px;
}
.footer__desc {
  color: var(--text-soft);
  font-size: 0.9rem;
}
.footer__links {
  display: flex;
  gap: 36px;
  align-items: center;
}
.footer__links a {
  text-decoration: none;
  color: var(--text-soft);
  font-weight: 500;
}
.footer__links a:hover {
  color: var(--blue-deep);
}
.footer__social {
  display: flex;
  gap: 20px;
}
.footer__social a {
  background: white;
  width: 44px;
  height: 44px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--blue-main);
  font-size: 1.4rem;
  transition: 0.2s;
}
.footer__social a:hover {
  background: var(--blue-main);
  color: white;
}
.footer__bottom {
  border-top: 1px solid rgba(91, 155, 213, 0.2);
  padding-top: 24px;
}
.footer__bottom-inner {
  display: flex;
  justify-content: space-between;
  font-size: 0.9rem;
  color: var(--text-soft);
}

/* Адаптивность */
@media (max-width: 900px) {
  .header__container {
    flex-direction: column;
    gap: 16px;
  }
  .nav__list {
    gap: 24px;
    flex-wrap: wrap;
    justify-content: center;
  }
  .hero__title {
    font-size: 2.8rem;
  }
  .about__grid,
  .collab-block,
  .contact__wrapper {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .projects__grid {
    grid-template-columns: 1fr;
  }
  .section-title {
    font-size: 2.2rem;
  }
  .footer__container {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 480px) {
  .hero__title {
    font-size: 2.2rem;
  }
  .hero__subtitle {
    font-size: 1.1rem;
  }
  .btn {
    padding: 12px 24px;
  }
  .collab-block {
    padding: 30px 20px;
  }
}