/* =========================================================
   Opakowania Online — arkusz stylów
   Prosta strona katalogowa (statyczny HTML/CSS/JS)
   ========================================================= */

:root {
  --green: #3a6e4a;
  --green-dark: #274f35;
  --green-light: #eaf2ec;
  --paper: #f3f5f1;
  --paper-2: #ececE6;
  --card-bg: #ffffff;
  --border: #e2e6df;
  --text: #23291f;
  --text-muted: #6b756a;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 10px 30px rgba(35, 41, 31, 0.07);
  --shadow-sm: 0 4px 14px rgba(35, 41, 31, 0.06);
  --max-width: 1180px;
  --header-h: 76px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Segoe UI", "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: #ffffff;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

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

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.98rem;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn-primary {
  background: var(--green);
  color: #fff;
}

.btn-primary:hover {
  background: var(--green-dark);
}

.btn-outline {
  background: transparent;
  border-color: var(--green);
  color: var(--green-dark);
}

.btn-outline:hover {
  background: var(--green-light);
}

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #ffffffee;
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--border);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 1.28rem;
  color: var(--text);
}

.logo .leaf {
  flex: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--green-light);
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo small {
  display: block;
  font-weight: 400;
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.main-nav a {
  font-weight: 600;
  font-size: 0.98rem;
  color: var(--text);
  padding: 8px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.15s ease, border-color 0.15s ease;
}

.main-nav a:hover,
.main-nav a.active {
  color: var(--green-dark);
  border-bottom-color: var(--green);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

/* ---------- Hero (home) ---------- */

.hero {
  background: var(--paper);
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}

.hero .container {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 48px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2rem, 3.4vw, 2.9rem);
  line-height: 1.15;
  margin: 0 0 18px;
  letter-spacing: -0.01em;
}

.hero p {
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 46ch;
  margin: 0 0 28px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-image-wrap {
  position: relative;
}

.hero-image-wrap img {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
}

.hero-badge {
  position: absolute;
  top: -18px;
  right: -14px;
  background: #fff;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  padding: 14px 18px;
  font-weight: 700;
  font-size: 0.82rem;
  text-align: center;
  color: var(--green-dark);
  line-height: 1.25;
  transform: rotate(6deg);
  border: 1px solid var(--border);
}

/* ---------- Section headings ---------- */

.section {
  padding: 68px 0;
}

.section-head {
  margin-bottom: 34px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 2.4vw, 2rem);
  margin: 0 0 8px;
}

.section-head p {
  color: var(--text-muted);
  margin: 0;
  max-width: 60ch;
}

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

/* ---------- Category grid (home) ---------- */

.cat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}

.cat-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
  display: flex;
  flex-direction: column;
}

.cat-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-3px);
}

.cat-card .cat-thumb {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  background: var(--paper);
}

.cat-card .cat-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.35s ease;
}

.cat-card:hover .cat-thumb img {
  transform: scale(1.04);
}

.cat-card .cat-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 16px 18px;
  font-weight: 700;
  font-size: 1.02rem;
}

.cat-card .cat-label .arrow {
  color: var(--green);
  font-size: 1.15rem;
  transition: transform 0.2s ease;
}

.cat-card:hover .cat-label .arrow {
  transform: translateX(4px);
}

/* ---------- About teaser (home) ---------- */

.about-teaser {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}

.about-teaser img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.about-teaser h2 {
  margin-top: 0;
}

.about-teaser .stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  margin: 26px 0 30px;
}

.stat {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 12px;
  text-align: center;
}

.stat strong {
  display: block;
  font-size: 1.5rem;
  color: var(--green-dark);
}

.stat span {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ---------- Footer ---------- */

.site-footer {
  background: #f7f8f5;
  border-top: 1px solid var(--border);
  padding: 44px 0 26px;
  margin-top: 40px;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  align-items: flex-start;
  justify-content: space-between;
  padding-bottom: 26px;
  border-bottom: 1px solid var(--border);
}

.footer-links {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  font-weight: 600;
}

.footer-links a:hover {
  color: var(--green-dark);
}

.footer-tagline {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.92rem;
  text-align: right;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  padding-top: 20px;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* ---------- Breadcrumbs ---------- */

.breadcrumbs {
  padding: 18px 0 0;
  font-size: 0.86rem;
  color: var(--text-muted);
}

.breadcrumbs a:hover {
  color: var(--green-dark);
}

.breadcrumbs span[aria-current] {
  color: var(--text);
  font-weight: 600;
}

/* ---------- Category page ---------- */

.page-intro {
  padding: 28px 0 40px;
}

.page-intro .eyebrow {
  display: inline-block;
  background: var(--green-light);
  color: var(--green-dark);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.page-intro h1 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin: 0 0 14px;
}

.page-intro .lead {
  font-size: 1.08rem;
  color: var(--text-muted);
  max-width: 68ch;
  margin: 0;
}

.featured-image {
  margin: 30px 0 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.page-layout {
  display: grid;
  grid-template-columns: 2.1fr 1fr;
  gap: 48px;
  padding: 44px 0 72px;
  align-items: start;
}

.page-main h2 {
  font-size: 1.4rem;
  margin: 34px 0 12px;
}

.page-main h2:first-child {
  margin-top: 0;
}

.page-main p {
  color: var(--text);
  margin: 0 0 16px;
}

.feature-list {
  display: grid;
  gap: 10px;
  margin: 8px 0 20px;
}

.feature-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
}

.feature-list li .dot {
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--green);
  margin-top: 7px;
}

.cta-box {
  margin-top: 30px;
  background: var(--green-light);
  border: 1px solid #d3e5da;
  border-radius: var(--radius);
  padding: 26px 28px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.cta-box h3 {
  margin: 0 0 4px;
  font-size: 1.15rem;
}

.cta-box p {
  margin: 0;
  color: var(--text-muted);
}

/* Sidebar */

.sidebar {
  position: sticky;
  top: calc(var(--header-h) + 24px);
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.sidebar .box {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
}

.sidebar h3 {
  margin: 0 0 14px;
  font-size: 1.02rem;
}

.sidebar .cat-menu li {
  border-bottom: 1px solid var(--border);
}

.sidebar .cat-menu li:last-child {
  border-bottom: none;
}

.sidebar .cat-menu a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 2px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
}

.sidebar .cat-menu a:hover {
  color: var(--green-dark);
}

.sidebar .cat-menu a .arrow {
  color: var(--green);
}

.sidebar .box.contact-box {
  background: var(--green-dark);
  color: #fff;
  border: none;
}

.sidebar .box.contact-box h3 {
  color: #fff;
}

.sidebar .box.contact-box p {
  color: #d9e7dd;
  font-size: 0.9rem;
  margin: 0 0 16px;
}

.sidebar .box.contact-box .btn-primary {
  background: #fff;
  color: var(--green-dark);
  width: 100%;
  justify-content: center;
}

.sidebar .box.contact-box .btn-primary:hover {
  background: #eef4f0;
}

/* ---------- O firmie ---------- */

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.value-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
}

.value-card .icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--green-light);
  color: var(--green-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 14px;
  font-weight: 700;
}

.value-card h3 {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.value-card p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.94rem;
}

.stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  background: var(--green-dark);
  color: #fff;
  border-radius: var(--radius);
  padding: 34px 24px;
}

.stats-strip .stat-item {
  text-align: center;
}

.stats-strip .stat-item strong {
  display: block;
  font-size: 2rem;
}

.stats-strip .stat-item span {
  font-size: 0.85rem;
  color: #cfe3d7;
}

.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px;
  align-items: center;
}

.two-col img {
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

/* ---------- Kontakt ---------- */

.contact-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.3fr;
  gap: 48px;
  align-items: start;
}

.contact-info .box {
  background: var(--paper);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 18px;
}

.contact-info h3 {
  margin: 0 0 6px;
  font-size: 1rem;
}

.contact-info p {
  margin: 0;
  color: var(--text-muted);
}

.contact-info a {
  color: var(--green-dark);
  font-weight: 600;
}

.contact-form {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-sm);
}

.form-row {
  margin-bottom: 20px;
}

.form-row label {
  display: block;
  font-weight: 600;
  font-size: 0.92rem;
  margin-bottom: 7px;
}

.form-row .required {
  color: var(--green-dark);
}

.form-row input,
.form-row textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font: inherit;
  color: var(--text);
  background: var(--paper);
  transition: border-color 0.15s ease, background 0.15s ease;
}

.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--green);
  background: #fff;
}

.form-row textarea {
  min-height: 140px;
  resize: vertical;
}

.form-row.has-error input,
.form-row.has-error textarea {
  border-color: #c0392b;
  background: #fdf3f2;
}

.error-text {
  display: none;
  color: #c0392b;
  font-size: 0.82rem;
  margin-top: 6px;
}

.form-row.has-error .error-text {
  display: block;
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
}

.checkbox-row input {
  width: auto;
  margin-top: 4px;
}

.checkbox-row label {
  font-weight: 400;
  font-size: 0.88rem;
  color: var(--text-muted);
  margin: 0;
}

.form-status {
  display: none;
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  margin-bottom: 20px;
  font-size: 0.92rem;
  font-weight: 600;
}

.form-status.show {
  display: block;
}

.form-status.success {
  background: #e7f4ea;
  color: var(--green-dark);
  border: 1px solid #bfe0cb;
}

.form-status.error {
  background: #fdecea;
  color: #a5352a;
  border: 1px solid #f3c6c1;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  top: -9999px;
}

/* ---------- Responsive ---------- */

@media (max-width: 980px) {
  .cat-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero .container {
    grid-template-columns: 1fr;
  }

  .hero-image-wrap {
    order: -1;
  }

  .about-teaser,
  .two-col {
    grid-template-columns: 1fr;
  }

  .page-layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
  }

  .sidebar .box {
    flex: 1 1 260px;
  }

  .values-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-strip {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px 20px;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 680px) {
  :root {
    --header-h: 66px;
  }

  .main-nav {
    position: fixed;
    inset: 66px 0 0 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
    padding: 18px 24px;
    transform: translateX(100%);
    transition: transform 0.25s ease;
    overflow-y: auto;
  }

  .main-nav.open {
    transform: translateX(0);
  }

  .main-nav a {
    display: block;
    width: 100%;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
  }

  .nav-toggle {
    display: block;
  }

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

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

  .stats-strip {
    grid-template-columns: 1fr 1fr;
  }

  .footer-top {
    flex-direction: column;
  }

  .footer-tagline {
    text-align: left;
  }

  .cta-box {
    flex-direction: column;
    align-items: flex-start;
  }
}