/* ========================================
   Firma Budowlana Józef Żyła
   Modern responsive website
   ======================================== */

:root {
  --color-bg: #ffffff;
  --color-bg-light: #f4f4f4;
  --color-white: #ffffff;
  --color-accent: #8b1a1a;
  --color-accent-hover: #a52a2a;
  --color-accent-warm: #8b1a1a;
  --color-nav-bg: #7b1113;
  --color-nav-active: #a52a2a;
  --color-text: #333333;
  --color-text-muted: #666666;
  --color-text-heading: #222222;
  --color-text-on-dark: #dddddd;
  --color-text-on-dark-muted: #cccccc;
  --color-text-on-dark-subtle: #bbbbbb;
  --color-border: #dddddd;
  --color-footer-bg: #2c2c2c;
  --color-success: #2e7d32;
  --color-success-bg: #e8f5e9;
  --color-success-border: #4caf50;
  --color-error: #c62828;
  --color-error-bg: #fce4ec;
  --color-error-border: #e53935;
  --color-field-error: #f85149;
  --color-overlay-hero: rgba(0, 0, 0, 0.45);
  --color-overlay-gallery: rgba(0, 0, 0, 0.7);
  --color-overlay-category: rgba(0, 0, 0, 0.8);
  --color-overlay-lightbox: rgba(0, 0, 0, 0.92);
  --color-overlay-accent: rgba(139, 26, 26, 0.75);
  --font-body: "Open Sans", Arial, Helvetica, sans-serif;
  --font-heading: "Montserrat", Arial, Helvetica, sans-serif;
  --max-width: 1200px;
  --header-height: 80px;
  --transition: 0.3s ease;
  --radius: 6px;
  --shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
  --shadow-text: 0 1px 4px rgba(0, 0, 0, 0.4);
  --shadow-lightbox: 0 4px 40px rgba(0, 0, 0, 0.5);
  --shadow-logo: 0 2px 8px rgba(0, 0, 0, 0.3);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg-light);
  color: var(--color-text);
  line-height: 1.7;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

a:hover,
a:focus {
  color: var(--color-accent-hover);
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  color: var(--color-text-heading);
  line-height: 1.3;
}

ul {
  list-style: none;
}

/* ========================================
   HEADER & NAVIGATION
   ======================================== */

.site-header {
  background: var(--color-bg);
  border-bottom: 3px solid var(--color-accent);
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: var(--shadow);
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 1.5rem;
  height: var(--header-height);
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.site-logo img {
  height: 65px;
  width: auto;
}

.site-logo-text {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--color-text-heading);
  line-height: 1.2;
}

.site-logo-text small {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.main-nav ul {
  display: flex;
  gap: 0;
}

.main-nav {
  background: var(--color-nav-bg);
  border-radius: var(--radius);
}

.main-nav a {
  display: block;
  padding: 0.6rem 1rem;
  color: var(--color-white);
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  transition:
    background var(--transition),
    color var(--transition);
}

.main-nav a:hover,
.main-nav a:focus,
.main-nav a.active {
  color: var(--color-white);
  background: var(--color-nav-active);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: var(--transition);
}

/* ========================================
   HERO
   ======================================== */

.hero {
  background:
    linear-gradient(var(--color-overlay-hero), var(--color-overlay-hero)),
    url("../images/top_bg.jpg") center center / cover no-repeat;
  padding: 5rem 1.5rem;
  text-align: center;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-content {
  max-width: 700px;
  text-shadow: var(--shadow-text);
}

.hero-subtitle {
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text-on-dark);
  text-transform: uppercase;
  letter-spacing: 3px;
  margin-bottom: 0.75rem;
}

.hero-logo {
  width: 160px;
  height: auto;
  margin: 0 auto 1.5rem;
  filter: drop-shadow(var(--shadow-logo));
}

.hero h1 {
  font-size: clamp(1.8rem, 4.5vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 1rem;
  color: var(--color-white);
  line-height: 1.2;
}

.hero-name {
  font-size: clamp(2.2rem, 5.5vw, 3.4rem);
  display: block;
}

.hero-tagline {
  font-size: 1.15rem;
  color: var(--color-text-on-dark);
  margin-bottom: 2rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 2rem;
  background: var(--color-accent);
  color: var(--color-white);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  border: 2px solid var(--color-accent);
  border-radius: var(--radius);
  cursor: pointer;
  transition:
    background var(--transition),
    color var(--transition),
    transform var(--transition);
}

.btn:hover,
.btn:focus {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: var(--color-white);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-accent);
}

.btn-outline:hover,
.btn-outline:focus {
  background: var(--color-accent);
  color: var(--color-white);
}

/* ========================================
   LAYOUT
   ======================================== */

.page-wrapper {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 2.5rem 1.5rem;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 2.5rem;
  flex: 1;
}

.page-wrapper.full-width {
  grid-template-columns: 1fr;
}

.main-content {
  min-width: 0;
}

/* ========================================
   SIDEBAR
   ======================================== */

.sidebar {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.sidebar-widget {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 1.5rem;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow);
}

.sidebar-widget h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--color-accent);
}

.sidebar-description {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.contact-widget .contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
}

.contact-widget .contact-icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.1rem;
}

.contact-widget .contact-text a {
  color: var(--color-text-heading);
  font-weight: 600;
  font-size: 1.05rem;
}

.contact-widget .contact-text a:hover {
  color: var(--color-accent);
}

.contact-widget .contact-label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.job-widget {
  border-left: 4px solid var(--color-accent);
}

.job-widget .job-position {
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 0.5rem;
}

.job-widget p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.job-widget .btn {
  font-size: 0.8rem;
  padding: 0.5rem 1.2rem;
}

/* ========================================
   SECTION TITLES
   ======================================== */

.section-title {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
  position: relative;
  padding-bottom: 0.75rem;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 60px;
  height: 3px;
  background: var(--color-accent);
  border-radius: 2px;
}

.section-title.center {
  text-align: center;
}

.section-title.center::after {
  left: 50%;
  transform: translateX(-50%);
}

.section-subtitle {
  color: var(--color-accent);
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 0.25rem;
}

/* ========================================
   HOME PAGE - SECTIONS
   ======================================== */

.home-section {
  margin-bottom: 3rem;
}

.about-preview p {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.about-preview .btn {
  margin-top: 0.5rem;
}

/* Offer grid */
.offer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.offer-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem;
  transition:
    transform var(--transition),
    border-color var(--transition),
    box-shadow var(--transition);
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.offer-card:hover {
  transform: translateY(-3px);
  border-color: var(--color-accent);
  box-shadow: var(--shadow);
}

.offer-card-icon {
  width: 44px;
  height: 44px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}

.offer-card span {
  font-weight: 600;
  font-size: 0.95rem;
}

/* Gallery preview */
.gallery-preview {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.gallery-preview-item {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
}

.gallery-preview-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.gallery-preview-item:hover img {
  transform: scale(1.05);
}

.gallery-preview-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 40%, var(--color-overlay-gallery));
  display: flex;
  align-items: flex-end;
  padding: 1rem;
}

.gallery-preview-overlay span {
  color: var(--color-white);
  font-weight: 600;
  font-size: 0.95rem;
}

/* Clients strip */
.clients-strip {
  display: flex;
  align-items: center;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 1.5rem;
}

.clients-strip img {
  max-height: 60px;
  filter: grayscale(1);
  opacity: 0.6;
  transition:
    filter var(--transition),
    opacity var(--transition);
}

.clients-strip img:hover {
  filter: grayscale(0);
  opacity: 1;
}

/* ========================================
   CONTENT PAGES
   ======================================== */

.content-block {
  background: var(--color-bg);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--color-border);
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}

.content-block p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  font-size: 1.02rem;
}

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

.content-block ul {
  margin: 1rem 0;
  padding-left: 0;
}

.content-block li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  color: var(--color-text-muted);
}

.content-block li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
}

.content-block h2,
.content-block h3 {
  font-size: 1.2rem;
  margin-bottom: 1rem;
  color: var(--color-accent);
}

.content-block-heading {
  font-size: 1.2rem;
}

/* ========================================
   GALLERY PAGE
   ======================================== */

.gallery-categories {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.gallery-category-card {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
  cursor: pointer;
  display: block;
  text-decoration: none;
}

.gallery-category-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.gallery-category-card:hover img {
  transform: scale(1.08);
}

.gallery-category-info {
  position: absolute;
  inset: 0;
  background: linear-gradient(transparent 30%, var(--color-overlay-category));
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.5rem;
  transition: background var(--transition);
}

.gallery-category-card:hover .gallery-category-info {
  background: linear-gradient(transparent 10%, var(--color-overlay-accent));
}

.gallery-category-info h3 {
  font-size: 1.15rem;
  margin-bottom: 0.25rem;
  color: var(--color-white);
}

.gallery-category-info span {
  font-size: 0.85rem;
  color: var(--color-text-on-dark);
}

/* Gallery grid (inside category) */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.gallery-thumb {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 1;
  cursor: pointer;
  border: 2px solid var(--color-border);
  transition: border-color var(--transition);
}

.gallery-thumb:hover {
  border-color: var(--color-accent);
}

.gallery-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}

.gallery-thumb:hover img {
  transform: scale(1.1);
}

/* Lightbox */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: var(--color-overlay-lightbox);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.lightbox-overlay.active {
  display: flex;
}

.lightbox-content {
  position: relative;
  max-width: 90vw;
  max-height: 90vh;
}

.lightbox-content img {
  max-width: 90vw;
  max-height: 85vh;
  border-radius: var(--radius);
  box-shadow: var(--shadow-lightbox);
}

.lightbox-close {
  position: absolute;
  top: -2.5rem;
  right: 0;
  background: none;
  border: none;
  color: var(--color-white);
  font-size: 2rem;
  cursor: pointer;
  line-height: 1;
  transition: color var(--transition);
}

.lightbox-close:hover {
  color: var(--color-accent);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  font-size: 1.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--transition);
}

.lightbox-nav:hover {
  background: var(--color-accent-hover);
}

.lightbox-prev {
  left: -3.5rem;
}

.lightbox-next {
  right: -3.5rem;
}

/* ========================================
   CLIENTS PAGE
   ======================================== */

.clients-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 1.5rem;
}

.client-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
  transition:
    border-color var(--transition),
    transform var(--transition),
    box-shadow var(--transition);
}

.client-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.client-card img {
  max-height: 50px;
  margin: 0 auto 1rem;
  filter: grayscale(1);
  opacity: 0.7;
  transition:
    filter var(--transition),
    opacity var(--transition);
}

.client-card:hover img {
  filter: grayscale(0);
  opacity: 1;
}

.client-card h3 {
  font-size: 0.95rem;
  font-weight: 600;
}

/* ========================================
   CONTACT FORM
   ======================================== */

.contact-form {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text);
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: 2px solid var(--color-accent);
  outline-offset: 1px;
  border-color: var(--color-accent);
}

.form-group input.field-error,
.form-group textarea.field-error {
  border-color: var(--color-field-error);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.contact-info-block {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.contact-info-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}

.contact-info-item strong {
  display: block;
  font-size: 1.1rem;
}

.contact-info-item span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* Form messages */
.form-message {
  padding: 1rem 1.5rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-weight: 600;
}

.form-message.success {
  background: var(--color-success-bg);
  border: 1px solid var(--color-success-border);
  color: var(--color-success);
}

.form-message.error {
  background: var(--color-error-bg);
  border: 1px solid var(--color-error-border);
  color: var(--color-error);
}

/* ========================================
   JOB OFFERS
   ======================================== */

.job-card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 1.5rem 2rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
}

.job-card h2,
.job-card h3 {
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  font-size: 1.2rem;
}

.job-card p {
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

/* ========================================
   FOOTER
   ======================================== */

.site-footer {
  background: var(--color-footer-bg);
  border-top: 3px solid var(--color-accent);
  padding: 2rem 1.5rem;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--color-text-on-dark-muted);
}

.footer-copy a {
  color: var(--color-accent-warm);
}

.footer-copy a:hover {
  color: var(--color-white);
}

.footer-nav ul {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.footer-nav a {
  color: var(--color-text-on-dark-subtle);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 600;
}

.footer-nav a:hover {
  color: var(--color-white);
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--color-text-on-dark-subtle);
  font-size: 0.9rem;
  transition: color var(--transition);
}

.footer-social a:hover {
  color: var(--color-white);
}

/* ========================================
   RESPONSIVE
   ======================================== */

@media (max-width: 992px) {
  .page-wrapper {
    grid-template-columns: 1fr;
  }

  .sidebar {
    order: 2;
  }

  .lightbox-prev {
    left: 0.5rem;
  }

  .lightbox-next {
    right: 0.5rem;
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 65px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    position: absolute;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: var(--color-nav-bg);
    border-bottom: 3px solid var(--color-accent);
    display: none;
    box-shadow: var(--shadow);
    border-radius: 0;
  }

  .main-nav.open {
    display: block;
  }

  .main-nav ul {
    flex-direction: column;
    padding: 0.5rem;
  }

  .main-nav a {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
  }

  .hero {
    padding: 3rem 1.5rem;
    min-height: 300px;
  }

  .hero-logo {
    width: 120px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-nav ul {
    justify-content: center;
  }

  .gallery-grid {
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  }
}

@media (max-width: 480px) {
  .offer-grid {
    grid-template-columns: 1fr;
  }

  .gallery-categories {
    grid-template-columns: 1fr;
  }

  .contact-info-block {
    flex-direction: column;
  }
}

/* ========================================
   UTILITY CLASSES
   ======================================== */

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.text-accent {
  color: var(--color-accent);
}

.mb-1 {
  margin-bottom: 1rem;
}
.mb-2 {
  margin-bottom: 2rem;
}
.mt-1 {
  margin-top: 1rem;
}
.mt-2 {
  margin-top: 2rem;
}

.form-honeypot {
  position: absolute;
  left: -9999px;
  height: 0;
  overflow: hidden;
}