/* ==========================================================================
   Paperline Machinery — European industrial minimal B2B style
   Palette: white / black / gray + green. No fancy animations.
   ========================================================================== */

:root {
  --green: #1a7f4f;
  --green-dark: #146342;
  --green-soft: #eef5f0;
  --ink: #17181a;
  --gray: #666a70;
  --gray-light: #9aa0a6;
  --line: #e3e5e7;
  --bg-soft: #f6f7f6;
  --white: #ffffff;
  --header-h: 68px;
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  font-family: "Helvetica Neue", Helvetica, Arial, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--white);
  padding-top: var(--header-h);
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
h1, h2, h3, h4 { font-weight: 600; line-height: 1.3; }

.container { max-width: 1180px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 860px; }
.center { text-align: center; }

/* ---------------------------------------------------------------- header */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  background: var(--white);
  border-bottom: 1px solid var(--line);
  z-index: 100;
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.2px;
  white-space: nowrap;
}
.logo-img {
  height: 40px;
  width: auto;
  display: block;
}
.logo-dot {
  display: inline-block;
  width: 8px; height: 8px;
  margin-left: 4px;
  background: var(--green);
  border-radius: 50%;
}

.main-nav > ul { display: flex; align-items: center; gap: 4px; }
.main-nav > ul > li { position: relative; }
.main-nav a {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.3px;
  color: var(--ink);
}
.main-nav a:hover { color: var(--green); }
.main-nav li.active > a { color: var(--green); }

/* dropdown: all level-1 categories */
.dropdown {
  position: absolute;
  top: 100%; left: 0;
  min-width: 300px;
  background: var(--white);
  border: 1px solid var(--line);
  border-top: 2px solid var(--green);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  display: none;
  z-index: 200;
}
.has-dropdown:hover .dropdown { display: block; }
.dropdown li { border-bottom: 1px solid var(--line); }
.dropdown li:last-child { border-bottom: 0; }
.dropdown a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 12px 16px;
  font-size: 14px;
  font-weight: 400;
  white-space: nowrap;
}
.dropdown a:hover { background: var(--green-soft); color: var(--green); }
.dropdown .count {
  font-size: 12px;
  color: var(--gray-light);
  background: var(--bg-soft);
  border-radius: 20px;
  padding: 1px 8px;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--ink);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding: 8px 14px;
  cursor: pointer;
}

/* ---------------------------------------------------------------- buttons */
.btn {
  display: inline-block;
  padding: 12px 28px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.4px;
  border: 1px solid transparent;
  cursor: pointer;
  text-align: center;
}
.btn-primary { background: var(--green); color: var(--white); }
.btn-primary:hover { background: var(--green-dark); }
.btn-outline { border-color: var(--ink); color: var(--ink); background: transparent; }
.btn-outline:hover { background: var(--ink); color: var(--white); }
.btn-lg { padding: 14px 34px; font-size: 15px; }

/* ---------------------------------------------------------------- banner */
.banner {
  position: relative;
  height: 480px;
  overflow: hidden;
  background: #eef0ee;
}
.banner.no-image::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(23, 24, 26, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 24, 26, .05) 1px, transparent 1px);
  background-size: 80px 80px;
  pointer-events: none;
}
.banner.no-image::after {
  content: "";
  position: absolute;
  right: -60px; top: -60px;
  width: 380px; height: 380px;
  border: 3px solid rgba(26, 127, 79, .18);
  border-radius: 50%;
  pointer-events: none;
}
.banner.no-image .banner-content { z-index: 1; }
.banner-bg {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity .5s ease;
}
.banner-bg.active {
  opacity: 1;
}
.banner-dots {
  position: absolute;
  bottom: 18px; left: 0; right: 0;
  display: flex;
  justify-content: center;
  gap: 8px;
  z-index: 5;
}
.banner-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: rgba(23, 24, 26, .25);
  cursor: pointer;
  transition: background .2s ease;
}
.banner-dot.active {
  background: var(--green);
}
.banner-content {
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
}
.banner h1 {
  font-size: 40px;
  line-height: 1.2;
  margin-bottom: 16px;
  color: var(--ink);
}
.banner p {
  font-size: 17px;
  color: var(--gray);
  margin-bottom: 28px;
}
.banner-actions { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------------------------------------------------------------- sections */
.section { padding: 88px 0; }
.section-soft { background: var(--bg-soft); }

.section-head { margin-bottom: 44px; }
.section-head .section-kicker { display: block; }
.section-text-narrow { max-width: 640px; }

.section-kicker {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--green);
  margin-bottom: 10px;
}
.section-title {
  font-size: 30px;
  margin-bottom: 14px;
}
.section-text { color: var(--gray); max-width: 720px; }
.section-more { margin-top: 44px; text-align: center; }

/* ---------------------------------------------------------------- intro */
.intro-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: center;
}
.intro-copy .btn { margin-top: 22px; }
.intro-media img { border: 1px solid var(--line); }

/* ---------------------------------------------------------------- grids */
.grid { display: grid; gap: 28px; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* ---------------------------------------------------------------- cards */
.card { border: 1px solid var(--line); background: var(--white); }
.card:hover { border-color: var(--green); }
.card-media { display: block; aspect-ratio: 4 / 3; overflow: hidden; background: var(--bg-soft); }
.card-media img { width: 100%; height: 100%; object-fit: cover; }
.card-body { padding: 18px 20px 20px; }
.card-title { font-size: 16px; margin-bottom: 8px; }
.card-title a:hover { color: var(--green); }
.card-text {
  font-size: 14px;
  color: var(--gray);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.card-link {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: var(--green);
}
.card-link:hover { color: var(--green-dark); }

/* core business cards */
.core-card {
  display: block;
  border: 1px solid var(--line);
  border-top: 3px solid var(--green);
  background: var(--white);
  padding: 26px 26px 24px;
}
.core-card:hover { border-color: var(--ink); border-top-color: var(--green); }
.core-card h3 { font-size: 17px; margin-bottom: 10px; }
.core-card p {
  font-size: 14px;
  color: var(--gray);
  margin-bottom: 16px;
}
.core-card-lg { padding: 32px; }
.core-card-top {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
}
.core-card-top .count { font-size: 13px; color: var(--gray-light); white-space: nowrap; }

/* advantages */
.adv-item { border-left: 2px solid var(--line); padding-left: 20px; }
.adv-item:hover { border-left-color: var(--green); }
.adv-index {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  color: var(--green);
  margin-bottom: 8px;
}
.adv-item h3 { font-size: 16px; margin-bottom: 8px; }
.adv-item p { font-size: 14px; color: var(--gray); }

/* ---------------------------------------------------------------- news */
.news-list { display: flex; flex-direction: column; }
.news-row {
  display: grid;
  grid-template-columns: 220px 120px 1fr;
  gap: 28px;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid var(--line);
}
.news-row:last-child { border-bottom: 1px solid var(--line); }
.news-row:hover h3 { color: var(--green); }
.news-thumb { aspect-ratio: 4 / 3; overflow: hidden; background: var(--bg-soft); }
.news-thumb img { width: 100%; height: 100%; object-fit: cover; }
.news-meta time {
  font-size: 13px;
  color: var(--gray-light);
  letter-spacing: 0.5px;
}
.news-copy h3 { font-size: 17px; margin-bottom: 6px; }
.news-copy p {
  font-size: 14px;
  color: var(--gray);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ---------------------------------------------------------------- CTA */
.cta-strip { background: var(--ink); color: var(--white); padding: 56px 0; }
.cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.cta-strip h2 { font-size: 24px; margin-bottom: 6px; }
.cta-strip p { color: #b9bdc2; font-size: 15px; }
.cta-strip .btn-primary { background: var(--green); }
.cta-strip .btn-primary:hover { background: #239163; }

/* ---------------------------------------------------------------- page head */
.page-head { background: var(--bg-soft); border-bottom: 1px solid var(--line); padding: 56px 0 48px; }
.page-head h1 { font-size: 32px; margin-bottom: 10px; }
.page-head p { color: var(--gray); max-width: 640px; }
.breadcrumb { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13px; color: var(--gray-light); margin-bottom: 14px; }
.breadcrumb a:hover { color: var(--green); }

/* ---------------------------------------------------------------- category page */
.category-layout { display: grid; grid-template-columns: 260px 1fr; gap: 48px; align-items: start; }
.category-side { position: sticky; top: calc(var(--header-h) + 24px); }
.category-side h4 {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  padding-bottom: 12px;
  margin-bottom: 8px;
  border-bottom: 2px solid var(--green);
}
.side-nav li { border-bottom: 1px solid var(--line); }
.side-nav a { display: block; padding: 10px 6px; font-size: 14px; color: var(--gray); }
.side-nav a:hover { color: var(--green); }
.side-nav li.active a { color: var(--green); font-weight: 600; }
.empty-state { color: var(--gray); padding: 24px 0; }

/* ---------------------------------------------------------------- product detail */
.product-layout {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 56px;
  align-items: start;
}
.product-gallery { position: sticky; top: calc(var(--header-h) + 24px); }
.gallery-main { border: 1px solid var(--line); aspect-ratio: 4 / 3; background: var(--bg-soft); }
.gallery-main img { width: 100%; height: 100%; object-fit: contain; }
.gallery-thumbs { display: flex; gap: 10px; margin-top: 10px; flex-wrap: wrap; }
.thumb {
  width: 84px; height: 63px;
  padding: 0;
  border: 1px solid var(--line);
  background: var(--bg-soft);
  cursor: pointer;
  overflow: hidden;
}
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb.active { border-color: var(--green); }

.product-summary { font-size: 17px; color: var(--gray); margin-bottom: 22px; }
.product-info .btn { margin-top: 8px; }
.hint { font-size: 13px; color: var(--gray-light); margin-top: 12px; }

.spec-table { width: 100%; border-collapse: collapse; margin: 18px 0; }
.spec-table th, .spec-table td {
  text-align: left;
  padding: 9px 12px;
  border-bottom: 1px solid var(--line);
  font-size: 14px;
}
.spec-table th { width: 34%; color: var(--gray); font-weight: 500; }
.spec-table-full th { color: var(--ink); font-weight: 600; width: 40%; }

.rich-text { color: var(--gray); font-size: 16px; }
.rich-text p { margin-bottom: 16px; }
.rich-text p:last-child { margin-bottom: 0; }

/* ---------------------------------------------------------------- about */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.about-media img { border: 1px solid var(--line); }
.facts-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  text-align: center;
}
.fact { border: 1px solid var(--line); padding: 36px 20px; }
.fact-num { font-size: 34px; font-weight: 700; color: var(--green); }
.fact-label { font-size: 14px; color: var(--gray); margin-top: 6px; }

/* ---------------------------------------------------------------- contact */
.contact-layout { display: grid; grid-template-columns: 320px 1fr; gap: 64px; align-items: start; }
.info-block { border-top: 1px solid var(--line); padding: 22px 0; }
.info-block:first-child { border-top: 2px solid var(--green); }
.info-block h4 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--gray);
  margin-bottom: 6px;
}
.info-block p { font-size: 15px; }
.info-block a:hover { color: var(--green); }

.contact-form-wrap { border: 1px solid var(--line); padding: 36px; }
.form-note { background: var(--green-soft); border-left: 3px solid var(--green); padding: 12px 16px; font-size: 14px; margin-bottom: 22px; }
.form-errors {
  background: #fdf1f0;
  border-left: 3px solid #c0392b;
  padding: 12px 16px;
  margin-bottom: 22px;
  font-size: 14px;
}
.form-errors ul { list-style: disc; padding-left: 18px; }
.form-success { text-align: center; padding: 40px 0; }
.form-success h3 { margin-bottom: 10px; }
.form-success p { color: var(--gray); margin-bottom: 24px; }

/* ---------------------------------------------------------------- forms */
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-row-3 { grid-template-columns: 1fr 1fr 2fr; align-items: end; }
.form-field { margin-bottom: 18px; }
.form-field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.4px;
  margin-bottom: 6px;
}
.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="tel"],
.form-field input[type="number"],
.form-field input[type="search"],
.form-field input[type="password"],
.form-field input[type="datetime-local"],
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 11px 12px;
  font: inherit;
  font-size: 15px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 0;
}
.form-field textarea { resize: vertical; }
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--green);
}
.checkbox-label { display: flex; align-items: center; gap: 8px; font-size: 14px; margin-top: 14px; cursor: pointer; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }

/* ---------------------------------------------------------------- footer */
.site-footer { background: var(--ink); color: #c6c9cd; padding: 64px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 0.8fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-logo { font-size: 18px; font-weight: 700; color: var(--white); margin-bottom: 12px; }
.footer-brand p { font-size: 14px; color: #9aa0a6; }
.site-footer h4 {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--white);
  margin-bottom: 16px;
}
.site-footer ul li { margin-bottom: 10px; font-size: 14px; }
.site-footer a:hover { color: var(--green); }
.footer-contact li { margin-bottom: 10px; }
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding: 22px 0;
  font-size: 13px;
  color: #8b9096;
}

/* ---------------------------------------------------------------- misc */
.big-404 { font-size: 96px; color: var(--green); line-height: 1; }
.article-date { color: var(--gray-light); font-size: 14px; }
.article-image { margin-bottom: 28px; border: 1px solid var(--line); }
.article-lead { font-size: 18px; color: var(--ink); margin-bottom: 24px; }
.article-back { margin-top: 36px; }

/* ---------------------------------------------------------------- responsive */
@media (max-width: 980px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .intro-grid, .product-layout, .contact-layout { grid-template-columns: 1fr; gap: 40px; }
  .category-layout { grid-template-columns: 1fr; }
  .category-side { position: static; }
  .product-gallery { position: static; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .facts-grid { grid-template-columns: repeat(2, 1fr); }
  .news-row { grid-template-columns: 140px 1fr; gap: 16px; }
  .news-meta { display: none; }
  .banner { height: 400px; }
  .banner h1 { font-size: 30px; }
  .section { padding: 64px 0; }
}

@media (max-width: 720px) {
  .nav-toggle { display: block; }
  .main-nav {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--white);
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
    max-height: calc(100vh - var(--header-h));
    overflow-y: auto;
  }
  .main-nav.open { display: block; }
  .main-nav > ul { flex-direction: column; align-items: stretch; gap: 0; padding: 8px 0; }
  .main-nav a { padding: 14px 24px; border-bottom: 1px solid var(--line); }
  .dropdown {
    position: static;
    display: none;
    box-shadow: none;
    border: 0;
    border-top: 0;
    background: var(--bg-soft);
    padding: 0;
  }
  .has-dropdown.open .dropdown { display: block; }
  .has-dropdown > a::after {
    content: "▾";
    margin-left: 8px;
    font-size: 11px;
    color: var(--gray-light);
  }
  .has-dropdown.open > a::after { content: "▴"; }
  .dropdown a { padding-left: 40px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .form-row, .form-row-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
}