/* ==========================================================================
   Ринц Консалтинг — Premium Boutique Design System
   Warm, trustworthy, sophisticated — forest green + warm ivory
   ========================================================================== */

:root {
  --color-brand: #2c5545;
  --color-brand-light: #3d7a64;
  --color-brand-dark: #1e3b30;

  --color-warm-900: #2d2926;
  --color-warm-700: #3a3634;
  --color-warm-500: #5a5450;
  --color-warm-400: #8a7e6b;
  --color-warm-300: #b5ad9e;
  --color-warm-200: #d9d3c7;
  --color-warm-100: #f0ece4;
  --color-warm-50: #faf8f4;

  --color-white: #ffffff;

  --font-heading: 'Georgia', 'Times New Roman', serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  --section-padding: 110px;
  --container-width: 1080px;
  --transition: 0.35s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-warm-700);
  background: var(--color-warm-50);
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--color-brand);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-brand-light);
}

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

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

/* ==========================================================================
   Navigation
   ========================================================================== */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: transparent;
  transition: background var(--transition), border-color var(--transition);
}

.nav.scrolled {
  background: rgba(250, 248, 244, 0.9);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(45, 41, 38, 0.08);
}

.nav__container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.nav__logo img {
  transition: opacity var(--transition);
}

.nav__logo:hover img {
  opacity: 0.75;
}

.nav__logo-dark {
  display: none;
}

.nav.scrolled .nav__logo-white {
  display: none;
}

.nav.scrolled .nav__logo-dark {
  display: block;
}

.nav__menu {
  display: flex;
  gap: 32px;
}

.nav__link {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: rgba(255, 255, 255, 0.8);
  transition: color var(--transition);
}

.nav.scrolled .nav__link {
  color: var(--color-warm-500);
}

.nav__link:hover {
  color: #fff;
}

.nav.scrolled .nav__link:hover {
  color: var(--color-brand);
}

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

.nav__toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: rgba(255,255,255,0.9);
  transition: all var(--transition);
}

.nav.scrolled .nav__toggle span {
  background: var(--color-warm-900);
}

/* ==========================================================================
   Hero — Deep green, warm, inviting
   ========================================================================== */

.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(160deg, #1e3b30 0%, #2c5545 50%, #3d6b58 100%);
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  z-index: 2;
  background: radial-gradient(ellipse at 50% 40%, transparent 0%, rgba(30,59,48,0.5) 100%);
}

.hero__content {
  position: relative;
  z-index: 3;
  text-align: center;
  padding: 0 24px;
  max-width: 860px;
}

.hero__label {
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 28px;
}

.hero__title {
  font-family: var(--font-heading);
  font-size: clamp(38px, 6vw, 72px);
  font-weight: 400;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 28px;
  font-style: normal;
}

.hero__subtitle {
  font-family: var(--font-body);
  font-size: clamp(17px, 2vw, 22px);
  font-weight: 400;
  color: rgba(255, 255, 255, 0.85);
  max-width: 560px;
  margin: 0 auto 48px;
  line-height: 1.6;
}

.hero__cta {
  display: inline-block;
  padding: 17px 48px;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.35);
  color: #fff;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.06em;
  border-radius: 4px;
  transition: all var(--transition);
}

.hero__cta:hover {
  background: rgba(255, 255, 255, 0.2);
  border-color: rgba(255, 255, 255, 0.4);
  color: #fff;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 3;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.3), transparent);
  animation: scrollFade 2.5s ease infinite;
}

@keyframes scrollFade {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.2; }
}

/* ==========================================================================
   Sections — General
   ========================================================================== */

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

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

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(28px, 3.5vw, 42px);
  font-weight: 400;
  color: var(--color-warm-900);
  text-align: center;
  margin-bottom: 16px;
}

.section__divider {
  width: 36px;
  height: 3px;
  background: var(--color-brand);
  margin: 0 auto 56px;
  border-radius: 2px;
}

.section__subtitle {
  text-align: center;
  color: var(--color-warm-700);
  font-size: 18px;
  max-width: 480px;
  margin: -32px auto 56px;
  line-height: 1.6;
}

/* ==========================================================================
   About
   ========================================================================== */

.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.about__text p {
  margin-bottom: 18px;
  color: var(--color-warm-700);
  font-size: 17px;
  line-height: 1.75;
}

.about__text p:last-child {
  margin-bottom: 0;
}

.about__text strong {
  color: var(--color-warm-900);
  font-weight: 600;
}

.about__values {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.value-card {
  padding: 28px 0;
  border-bottom: 1px solid var(--color-warm-200);
}

.value-card:first-child {
  padding-top: 0;
}

.value-card:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.value-card__number {
  font-family: var(--font-heading);
  font-size: 13px;
  color: var(--color-brand);
  margin-bottom: 8px;
  letter-spacing: 0.03em;
}

.value-card__title {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 400;
  color: var(--color-warm-900);
  margin-bottom: 6px;
}

.value-card__text {
  font-size: 15px;
  color: var(--color-warm-700);
  line-height: 1.6;
}

/* ==========================================================================
   Services
   ========================================================================== */

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-warm-50);
  padding: 44px 32px;
  border-radius: 12px;
  border: 1px solid var(--color-warm-200);
  transition: all 0.4s ease;
}

.service-card:hover {
  border-color: var(--color-brand);
  box-shadow: 0 8px 32px rgba(44, 85, 69, 0.08);
  transform: translateY(-3px);
}

.service-card__icon {
  width: 40px;
  height: 40px;
  color: var(--color-brand);
  margin-bottom: 24px;
}

.service-card__icon svg {
  width: 100%;
  height: 100%;
}

.service-card__title {
  font-family: var(--font-heading);
  font-size: 20px;
  font-weight: 400;
  color: var(--color-warm-900);
  margin-bottom: 14px;
}

.service-card__text {
  font-size: 15px;
  color: var(--color-warm-700);
  line-height: 1.7;
}

/* ==========================================================================
   Expertise
   ========================================================================== */

.expertise__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px;
  text-align: center;
  margin-bottom: 72px;
}

.expertise__stat {
  font-family: var(--font-heading);
  font-size: 52px;
  font-weight: 400;
  color: var(--color-brand);
  margin-bottom: 8px;
  line-height: 1;
}

.expertise__label {
  font-size: 13px;
  color: var(--color-warm-500);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.expertise__details {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.expertise__block h3 {
  font-family: var(--font-heading);
  font-size: 18px;
  font-weight: 400;
  color: var(--color-warm-900);
  margin-bottom: 12px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--color-brand);
}

.expertise__block p {
  font-size: 15px;
  color: var(--color-warm-700);
  line-height: 1.7;
}

/* ==========================================================================
   Team
   ========================================================================== */

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.team-card {
  text-align: center;
}

.team-card__photo {
  width: 200px;
  height: 200px;
  border-radius: 50%;
  overflow: hidden;
  margin: 0 auto 24px;
  border: 3px solid var(--color-warm-200);
  transition: border-color var(--transition);
}

.team-card:hover .team-card__photo {
  border-color: var(--color-brand);
}

.team-card__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  transition: transform 0.5s ease;
}

.team-card:hover .team-card__photo img {
  transform: scale(1.05);
}

.team-card__name {
  font-family: var(--font-heading);
  font-size: 22px;
  font-weight: 400;
  color: var(--color-warm-900);
  margin-bottom: 4px;
}

.team-card__role {
  font-size: 13px;
  color: var(--color-brand);
  font-weight: 600;
  letter-spacing: 0.03em;
  margin-bottom: 14px;
}

.team-card__desc {
  font-size: 14px;
  color: var(--color-warm-700);
  line-height: 1.65;
}

/* ==========================================================================
   Contacts
   ========================================================================== */

.contacts__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: start;
}

.contacts__item {
  display: flex;
  gap: 18px;
  margin-bottom: 32px;
  align-items: flex-start;
}

.contacts__icon {
  width: 20px;
  height: 20px;
  color: var(--color-brand);
  flex-shrink: 0;
  margin-top: 3px;
}

.contacts__icon svg {
  width: 100%;
  height: 100%;
}

.contacts__item h4 {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-warm-300);
  margin-bottom: 4px;
}

.contacts__item p {
  font-size: 15px;
  color: var(--color-warm-700);
  line-height: 1.5;
}

.contacts__item a {
  color: var(--color-warm-700);
}

.contacts__item a:hover {
  color: var(--color-brand);
}

.contacts__form-area {
  background: var(--color-white);
  padding: 44px;
  border-radius: 12px;
  border: 1px solid var(--color-warm-200);
}

.contacts__cta-text {
  font-family: var(--font-heading);
  font-size: 26px;
  font-weight: 400;
  color: var(--color-warm-900);
  margin-bottom: 10px;
}

.contacts__form-area > p {
  color: var(--color-warm-500);
  margin-bottom: 24px;
  font-size: 15px;
}

.contacts__btn {
  display: inline-block;
  padding: 14px 36px;
  background: var(--color-brand);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  border: none;
  border-radius: 4px;
  transition: all var(--transition);
}

.contacts__btn:hover {
  background: var(--color-brand-dark);
  color: #fff;
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  background: var(--color-warm-900);
  padding: 28px 0;
}

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

.footer__copy {
  font-size: 12px;
  color: var(--color-warm-500);
}

/* ==========================================================================
   Scroll Reveal
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 1024px) {
  :root {
    --section-padding: 88px;
  }

  .about__grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

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

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

  .team-grid {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  :root {
    --section-padding: 72px;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(30, 59, 48, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 28px;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition);
  }

  .nav__menu.open {
    opacity: 1;
    pointer-events: all;
  }

  .nav__menu .nav__link {
    color: rgba(255,255,255,0.9);
    font-size: 18px;
  }

  .nav.scrolled .nav__menu .nav__link {
    color: rgba(255,255,255,0.9);
  }

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

  .expertise__grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
  }

  .expertise__stat {
    font-size: 36px;
  }

  .expertise__details {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .team-grid {
    grid-template-columns: 1fr;
    max-width: 320px;
    gap: 40px;
  }

  .team-card__photo {
    width: 160px;
    height: 160px;
  }

  .contacts__grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer__content {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .nav__logo img {
    height: 36px !important;
  }

  .hero__title {
    font-size: 28px;
  }

  .hero__subtitle {
    font-size: 14px;
  }

  .hero__label {
    font-size: 11px;
  }

  .expertise__grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .section__title {
    font-size: 24px;
  }

  .section__subtitle {
    font-size: 15px;
  }

  .contacts__form-area {
    padding: 28px 20px;
  }

  .footer__logo img {
    height: 28px !important;
  }
}