/* =============================================
   АГРОТЕХІНТЕЛІДЖЕНС — style.css
   Колірна схема: чорний + жовтий
   ============================================= */

/* ---- Variables ---- */
:root {
  --yellow:      #F5C518;
  --yellow-dark: #d4a600;
  --yellow-light:#ffe566;
  --black:       #111111;
  --black-mid:   #1e1e1e;
  --black-soft:  #2a2a2a;
  --gray:        #f5f5f5;
  --gray-mid:    #e8e8e8;
  --text:        #1a1a1a;
  --text-muted:  #666;
  --white:       #ffffff;
  --radius:      8px;
  --shadow:      0 2px 16px rgba(0,0,0,0.10);
  --shadow-hover:0 6px 28px rgba(0,0,0,0.18);
  --transition:  0.25s ease;
  --header-h:    72px;
  --max-w:       1200px;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  color: var(--text);
  background: var(--white);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font: inherit; }

/* ---- Typography helpers ---- */
.section-title {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--black);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}
.section-sub {
  color: var(--text-muted);
  font-size: 1.05rem;
  margin-bottom: 2.5rem;
  max-width: 680px;
}
.section-head { margin-bottom: 2.5rem; }
.section-head::after {
  content: '';
  display: block;
  width: 56px;
  height: 4px;
  background: var(--yellow);
  border-radius: 2px;
  margin-top: 0.75rem;
}

/* ---- Layout ---- */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}
section { padding: 5rem 0; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 700;
  border: 2px solid transparent;
  transition: background var(--transition), color var(--transition),
              border-color var(--transition), transform var(--transition);
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }

.btn--primary {
  background: var(--yellow);
  color: var(--black);
  border-color: var(--yellow);
}
.btn--primary:hover { background: var(--yellow-dark); border-color: var(--yellow-dark); }

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255,255,255,0.6);
}
.btn--outline:hover { background: rgba(255,255,255,0.1); border-color: var(--white); }

.btn--ghost {
  background: transparent;
  color: var(--black);
  border-color: var(--black);
}
.btn--ghost:hover { background: var(--black); color: var(--yellow); }

.btn--sm { padding: 0.5rem 1.1rem; font-size: 0.875rem; }


/* ====================================================
   HEADER
   ==================================================== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--black);
  z-index: 100;
  border-bottom: 3px solid var(--yellow);
}
.header__inner {
  height: 100%;
  display: flex;
  align-items: center;
  gap: 2rem;
}

/* Logo */
.logo { display: flex; flex-direction: column; line-height: 1.15; }
.logo__main {
  font-size: 1.15rem;
  font-weight: 900;
  letter-spacing: -0.02em;
  color: var(--yellow);
  text-transform: uppercase;
}
.logo__sub { font-size: 0.7rem; color: rgba(255,255,255,0.5); letter-spacing: 0.04em; }

/* Nav */
.nav {
  display: flex;
  gap: 0.25rem;
  margin-left: auto;
}
.nav__link {
  padding: 0.45rem 0.9rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: rgba(255,255,255,0.8);
  border-radius: 6px;
  transition: color var(--transition), background var(--transition);
}
.nav__link:hover,
.nav__link.active { color: var(--yellow); background: rgba(245,197,24,0.1); }

/* Header contact */
.header__contact {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-shrink: 0;
}
.header__phone {
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--yellow);
  letter-spacing: 0.02em;
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  background: none;
  border: none;
  margin-left: auto;
}
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--yellow);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }


/* ====================================================
   HERO
   ==================================================== */
.hero {
  min-height: 100svh;
  background: var(--black);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: var(--header-h);
  position: relative;
  overflow: hidden;
}

.hero__bg-pattern {
  position: absolute;
  inset: 0;
  background:
    repeating-linear-gradient(
      -45deg,
      rgba(245,197,24,0.04) 0,
      rgba(245,197,24,0.04) 1px,
      transparent 1px,
      transparent 28px
    );
  pointer-events: none;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  padding-top: 3rem;
  padding-bottom: 3rem;
  position: relative;
  z-index: 1;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 1rem;
}

.hero__title {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 900;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

.hero__subtitle {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--yellow);
  margin-bottom: 1rem;
  line-height: 1.5;
}

.hero__desc {
  color: rgba(255,255,255,0.65);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Hero visual */
.hero__visual { position: relative; }
.hero__img-wrap {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4/3;
  border: 3px solid var(--yellow);
}
.hero__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.hero__img-accent {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(245,197,24,0.18) 0%, transparent 60%);
  pointer-events: none;
}

/* Scroll indicator */
.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(245,197,24,0.6);
  z-index: 1;
}
.hero__scroll-arrow {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, rgba(245,197,24,0.6), transparent);
  animation: scrollAnim 1.8s ease-in-out infinite;
}
@keyframes scrollAnim {
  0%,100% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  50%      { opacity: 0.4; transform: scaleY(0.5); }
}


/* ====================================================
   ABOUT
   ==================================================== */
.about { background: var(--white); }
.about__grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

/* Left col */
.about__label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--yellow-dark);
  margin-bottom: 0.75rem;
}
.about__title {
  font-size: clamp(1.6rem, 2.5vw, 2.2rem);
  font-weight: 900;
  color: var(--black);
  line-height: 1.15;
  margin-bottom: 1rem;
}
.about__title span { color: var(--yellow); }
.about__subtitle {
  font-size: 1rem;
  font-weight: 600;
  color: var(--black);
  margin-bottom: 0.75rem;
  line-height: 1.5;
}
.about__text { font-size: 0.93rem; line-height: 1.75; color: #555; }
.about__meta {
  margin-top: 1.25rem;
  font-size: 0.88rem;
  color: #444;
  line-height: 1.8;
}
.about__meta strong { color: var(--black); }
.about__contact {
  margin-top: 1rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--black);
}
.about__contact a { color: var(--yellow-dark); }

/* Center photo */
.about__photo-wrap {
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: var(--yellow);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  overflow: hidden;
  flex-shrink: 0;
}
.about__photo-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

/* Right col */
.about__benefits-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--black);
  margin-bottom: 0.3rem;
}
.about__benefits-sub {
  font-size: 0.875rem;
  font-style: italic;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}
.about__benefit-list { display: flex; flex-direction: column; gap: 1.1rem; }
.benefit-item { display: flex; align-items: flex-start; gap: 0.9rem; }
.benefit-item__icon {
  width: 42px; height: 42px;
  background: var(--black);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--yellow);
}
.benefit-item__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 0.15rem;
}
.benefit-item__desc { font-size: 0.83rem; color: var(--text-muted); line-height: 1.5; }
.about__cta { display: flex; gap: 0.75rem; margin-top: 1.75rem; flex-wrap: wrap; }


/* ====================================================
   SERVICES
   ==================================================== */
.services { background: #f5f5f5; }

.services__layout {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 3rem;
  align-items: start;
}

/* Left panel */
.services__panel {
  position: sticky;
  top: calc(var(--header-h) + 2rem);
}
.services__panel-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--yellow-dark);
  margin-bottom: 0.75rem;
}
.services__panel-title {
  font-size: clamp(1.4rem, 2.2vw, 2rem);
  font-weight: 900;
  color: var(--black);
  line-height: 1.2;
  margin-bottom: 1rem;
}
.services__panel-title span { color: var(--yellow); }
.services__panel-desc {
  font-size: 0.9rem;
  color: #555;
  line-height: 1.7;
  margin-bottom: 1.25rem;
}
.services__checklist {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: 1.75rem;
}
.services__checklist li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.875rem;
  color: var(--black);
  font-weight: 500;
}
.services__checklist li::before {
  content: '';
  width: 18px; height: 18px;
  background: var(--yellow) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='11' height='9' viewBox='0 0 11 9'%3E%3Cpath d='M1 4l3 3 6-6' stroke='%23111' stroke-width='2' stroke-linecap='round' stroke-linejoin='round' fill='none'/%3E%3C/svg%3E") center/11px no-repeat;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Right grid */
.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.service-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 1.4rem;
  border: 1.5px solid transparent;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}
.service-card:hover {
  border-color: var(--yellow);
  box-shadow: 0 4px 20px rgba(0,0,0,0.08);
  transform: translateY(-2px);
}
.service-card__icon {
  width: 48px; height: 48px;
  border: 2px solid var(--yellow);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 0.9rem;
  color: var(--yellow);
}
.service-card__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--black);
  margin-bottom: 0.4rem;
  line-height: 1.3;
}
.service-card__desc {
  font-size: 0.82rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 0.9rem;
}
.service-card__link {
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--yellow-dark);
  border-bottom: 1.5px solid var(--yellow);
  padding-bottom: 1px;
  transition: color var(--transition);
}
.service-card__link:hover { color: var(--black); }


/* ====================================================
   EQUIPMENT — прихований тимчасово
   ==================================================== */
.equipment { display: none; }
.equipment-hidden { background: var(--black); }
.equipment .section-title { color: var(--white); }
.equipment .section-sub   { color: rgba(255,255,255,0.5); }
.equipment .section-head::after { background: var(--yellow); }

.equipment__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.tractor-card {
  background: var(--black-mid);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1.5px solid rgba(255,255,255,0.08);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.tractor-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0,0,0,0.4);
  border-color: var(--yellow);
}

.tractor-card__img {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.tractor-card__img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.tractor-card:hover .tractor-card__img img { transform: scale(1.04); }
.tractor-card__badge {
  position: absolute;
  top: 0.75rem; left: 0.75rem;
  background: var(--yellow);
  color: var(--black);
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.25rem 0.65rem;
  border-radius: 4px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.tractor-card__body { padding: 1.25rem; }
.tractor-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.4rem;
}
.tractor-card__desc { font-size: 0.85rem; color: rgba(255,255,255,0.5); margin-bottom: 1rem; }

.tractor-card__specs { display: grid; gap: 0.35rem; margin-bottom: 1.25rem; }
.spec-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  padding-bottom: 0.35rem;
  border-bottom: 1px solid rgba(255,255,255,0.07);
}
.spec-row:last-child { border-bottom: none; }
.spec-row__key { color: rgba(255,255,255,0.45); }
.spec-row__val { color: var(--white); font-weight: 600; }


/* ====================================================
   WHY US
   ==================================================== */
.why-us { background: var(--yellow); }
.why-us .section-title { color: var(--black); }
.why-us .section-sub   { color: rgba(0,0,0,0.6); }
.why-us .section-head::after { background: var(--black); }

.why-us__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.benefit-card {
  background: var(--black);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  transition: transform var(--transition);
}
.benefit-card:hover { transform: translateY(-4px); }
.benefit-card__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  border: 2.5px solid var(--yellow);
  border-radius: 10px;
  font-size: 1.75rem;
  font-weight: 900;
  color: var(--yellow);
  line-height: 1;
  margin-bottom: 1rem;
}
.benefit-card__title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 0.5rem;
}
.benefit-card__desc { font-size: 0.875rem; color: rgba(255,255,255,0.6); line-height: 1.6; }


/* ====================================================
   CONTACTS
   ==================================================== */
.contacts { background: var(--gray); }
.contacts__grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 3rem;
  align-items: start;
}

.contacts__info { display: flex; flex-direction: column; gap: 1.25rem; }
.contact-block__label {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}
.contact-block__value {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--black);
  line-height: 1.5;
}
.contact-block__value--link:hover { color: var(--yellow-dark); text-decoration: underline; }
.contact-block__actions { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-top: 0.5rem; }

/* Form */
.contacts__form {
  background: var(--white);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: var(--shadow);
  border-top: 4px solid var(--yellow);
}
.form__title {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--black);
  margin-bottom: 0.25rem;
}
.form__note { font-size: 0.875rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.form__group { margin-bottom: 1rem; }
.form__label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
}
.form__input {
  width: 100%;
  padding: 0.7rem 1rem;
  border: 1.5px solid var(--gray-mid);
  border-radius: var(--radius);
  font: inherit;
  font-size: 0.925rem;
  color: var(--text);
  background: var(--white);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form__input::placeholder { color: #bbb; }
.form__input:focus {
  border-color: var(--yellow);
  box-shadow: 0 0 0 3px rgba(245,197,24,0.2);
}
.form__input.error { border-color: #e74c3c; }
.form__textarea { resize: vertical; min-height: 110px; }

.field-error-msg {
  display: block;
  font-size: 0.78rem;
  color: #e74c3c;
  margin-top: 0.3rem;
}

.form__btn { width: 100%; justify-content: center; margin-top: 0.5rem; }

.form-success {
  background: #d1fae5;
  border: 1px solid #6ee7b7;
  color: #065f46;
  padding: 1rem 1.25rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  margin-top: 1rem;
  font-weight: 500;
}
.form-success--error {
  background: #fee2e2;
  border-color: #fca5a5;
  color: #991b1b;
}


/* ====================================================
   FOOTER
   ==================================================== */
.footer { background: var(--black); padding: 3.5rem 0 0; }
.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr;
  gap: 2.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo--footer .logo__main { font-size: 1rem; }
.footer__desc { font-size: 0.875rem; color: rgba(255,255,255,0.4); margin-top: 0.75rem; line-height: 1.6; }

.footer__nav-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--yellow);
  margin-bottom: 1rem;
}
.footer__nav-link {
  display: block;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 0.5rem;
  transition: color var(--transition);
}
.footer__nav-link:hover { color: var(--yellow); }
.footer__address { line-height: 1.6; cursor: default; }

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1.25rem 0;
}
.footer__copy { font-size: 0.8rem; color: rgba(255,255,255,0.3); }
.footer__back {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  color: rgba(255,255,255,0.4);
  transition: color var(--transition);
}
.footer__back:hover { color: var(--yellow); }


/* ====================================================
   SCROLL REVEAL
   ==================================================== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.55s ease, transform 0.55s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}


/* ====================================================
   RESPONSIVE
   ==================================================== */
@media (max-width: 1100px) {
  .about__grid            { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .about__photo-wrap      { display: none; }
  .services__layout       { grid-template-columns: 240px 1fr; gap: 2rem; }
  .services__grid         { grid-template-columns: repeat(2, 1fr); }
  .equipment__grid        { grid-template-columns: repeat(2, 1fr); }
  .why-us__grid           { grid-template-columns: repeat(2, 1fr); }
  .hero__inner            { grid-template-columns: 1fr; }
  .hero__visual           { display: none; }
}

@media (max-width: 768px) {
  :root { --header-h: 64px; }
  section { padding: 3.5rem 0; }

  /* Header */
  .nav { display: none; flex-direction: column; gap: 0; position: absolute; top: var(--header-h); left: 0; right: 0; background: var(--black); padding: 1rem 0; border-bottom: 3px solid var(--yellow); }
  .nav.open { display: flex; }
  .nav__link { padding: 0.75rem 1.5rem; border-radius: 0; font-size: 1rem; }
  .header__contact .btn--sm { display: none; }
  .burger { display: flex; }

  .about__grid        { grid-template-columns: 1fr; gap: 1.5rem; }
  .about__photo-wrap  { display: flex; width: 220px; height: 220px; margin: 0 auto; }
  .services__layout   { grid-template-columns: 1fr; }
  .services__panel    { position: static; }
  .services__grid     { grid-template-columns: repeat(2, 1fr); }
  .equipment__grid    { grid-template-columns: 1fr; }
  .why-us__grid       { grid-template-columns: 1fr; }
  .contacts__grid     { grid-template-columns: 1fr; }
  .footer__inner      { grid-template-columns: 1fr; gap: 1.5rem; }

  .hero__content { text-align: center; }
  .hero__actions { justify-content: center; }
}

@media (max-width: 480px) {
  .hero__title    { font-size: 1.6rem; }
  .section-title  { font-size: 1.4rem; }
  .services__grid { grid-template-columns: 1fr; }
  .contact-block__actions { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .header__phone { display: none; }
}