/* ============================================================
   CzyszczenieInstalacji.co — Główny arkusz stylów
   Mobile-first | BEM | CSS Variables
   ============================================================ */

/* ---------- 1. ZMIENNE / DESIGN TOKENS ---------- */
:root {
  /* Kolorystyka */
  --color-primary: #1a2332;          /* ciemny granat / grafit (tło) */
  --color-primary-light: #243044;    /* jaśniejszy granat (sekcje, karty) */
  --color-primary-dark: #131a26;     /* ciemniejszy granat (header/footer) */
  --color-accent: #ff6b35;           /* pomarańcz dla CTA */
  --color-accent-dark: #e85420;      /* pomarańcz hover */
  --color-whatsapp: #25D366;         /* zielony WhatsApp */
  --color-whatsapp-dark: #1da851;
  --color-text: #ffffff;             /* biały tekst */
  --color-text-secondary: #e5e5e5;   /* jasny szary tekst */
  --color-muted: #9aa3b2;            /* przygaszony tekst */
  --color-border: #33415c;           /* obramowania */

  /* Typografia */
  --font-base: 'Segoe UI', system-ui, -apple-system, Roboto, Arial, sans-serif;

  /* Odstępy */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;

  /* Inne */
  --radius: 10px;
  --radius-lg: 16px;
  --max-width: 1140px;
  --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
  --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.25);
}

/* ---------- 2. RESET / PODSTAWY ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--color-text);
  background-color: var(--color-primary);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  /* Zapas miejsca na dole pod sticky CTA na mobile */
  padding-bottom: 72px;
}

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

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

ul {
  list-style: none;
}

h1, h2, h3, h4 {
  line-height: 1.25;
  font-weight: 700;
}

/* ---------- 3. UKŁAD / KONTENERY ---------- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-sm);
}

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

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

.section__title {
  font-size: 1.6rem;
  margin-bottom: var(--space-md);
  text-align: center;
}

.section__subtitle {
  color: var(--color-text-secondary);
  text-align: center;
  max-width: 700px;
  margin: 0 auto var(--space-lg);
}

/* ---------- 4. PRZYCISKI (BEM) ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.4rem;
  border: none;
  border-radius: var(--radius);
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  text-align: center;
  transition: background-color 0.2s ease, transform 0.1s ease;
  color: var(--color-text);
}

.btn:active {
  transform: scale(0.98);
}

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

.btn--accent:hover {
  background-color: var(--color-accent-dark);
}

.btn--whatsapp {
  background-color: var(--color-whatsapp);
}

.btn--whatsapp:hover {
  background-color: var(--color-whatsapp-dark);
}

.btn--outline {
  background-color: transparent;
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
}

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

.btn--block {
  display: flex;
  width: 100%;
}

/* ---------- 5. HEADER / NAWIGACJA ---------- */
.header {
  background-color: var(--color-primary-dark);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.8rem var(--space-sm);
  max-width: var(--max-width);
  margin: 0 auto;
}

.header__logo {
  color: var(--color-text);
  font-weight: 700;
  font-size: 1.05rem;
  display: flex;
  flex-direction: column;
  line-height: 1.1;
}

.header__logo span {
  color: var(--color-accent);
  font-size: 0.72rem;
  font-weight: 600;
}

/* Hamburger */
.nav__toggle {
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.6rem;
  cursor: pointer;
  display: block;
}

.nav__list {
  display: none;
  flex-direction: column;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background-color: var(--color-primary-dark);
  padding: var(--space-sm);
  gap: 0.25rem;
  border-top: 1px solid var(--color-border);
}

.nav__list--open {
  display: flex;
}

.nav__link {
  color: var(--color-text-secondary);
  padding: 0.7rem 0.5rem;
  display: block;
  border-radius: var(--radius);
  font-weight: 600;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-accent);
  background-color: var(--color-primary-light);
}

/* ---------- 6. HERO ---------- */
.hero {
  background: linear-gradient(160deg, var(--color-primary-dark), var(--color-primary-light));
  padding: var(--space-xl) 0;
  text-align: center;
}

.hero__badge {
  display: inline-block;
  background-color: rgba(255, 107, 53, 0.15);
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: 999px;
  padding: 0.4rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
}

.hero__title {
  font-size: 1.9rem;
  margin-bottom: var(--space-sm);
}

.hero__subtitle {
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  max-width: 720px;
  margin: 0 auto var(--space-lg);
}

.hero__cta {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  max-width: 420px;
  margin: 0 auto;
}

/* ---------- 7. PLACEHOLDER ZDJĘĆ ---------- */
.image-placeholder {
  background-color: #ffffff;
  color: #555;
  border: 2px dashed #c4c4c4;
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-md);
  white-space: pre-line;     /* pozwala na \n w treści */
  font-size: 0.9rem;
  font-weight: 600;
  min-height: 200px;
  line-height: 1.5;
}

.image-placeholder--tall {
  min-height: 280px;
}

/* ---------- 8. LISTA "BÓLU" / IKONY ---------- */
.pain-list {
  display: grid;
  gap: var(--space-sm);
  grid-template-columns: 1fr;
}

.pain-list__item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  padding: var(--space-sm);
}

.pain-list__icon {
  font-size: 1.5rem;
  flex-shrink: 0;
  line-height: 1.3;
}

.pain-list__text {
  color: var(--color-text-secondary);
}

/* ---------- 9. KARTY (JAK PRACUJEMY / OGÓLNE) ---------- */
.cards {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

.card {
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
  text-align: center;
}

.card__icon {
  font-size: 2.2rem;
  margin-bottom: var(--space-xs);
}

.card__title {
  font-size: 1.15rem;
  margin-bottom: var(--space-xs);
  color: var(--color-accent);
}

.card__text {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* ---------- 10. DOWÓD WIZUALNY / YOUTUBE ---------- */
.media-grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

/* Responsywny wrapper 16:9 dla iframe YouTube */
.video-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%; /* 16:9 */
  background-color: #000;
  border-radius: var(--radius);
  overflow: hidden;
}

.video-wrap iframe,
.video-wrap .video-wrap__placeholder {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.video-wrap__placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background-color: #fff;
  color: #555;
  white-space: pre-line;
  font-weight: 600;
  padding: var(--space-md);
}

/* ---------- 11. SEKCJA AUTORYTET / BRAK CENNIKA ---------- */
.authority {
  max-width: 780px;
  margin: 0 auto;
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.authority__text {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.authority__signature {
  font-style: italic;
  color: var(--color-accent);
  font-weight: 600;
  margin-top: var(--space-md);
}

/* ---------- 12. FORMULARZ ---------- */
.form {
  max-width: 480px;
  margin: 0 auto;
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.form__group {
  margin-bottom: var(--space-sm);
}

.form__label {
  display: block;
  margin-bottom: 0.35rem;
  font-weight: 600;
  color: var(--color-text);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 0.85rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background-color: var(--color-primary);
  color: var(--color-text);
  font-size: 1rem;
  font-family: inherit;
}

.form__input:focus,
.form__textarea:focus {
  outline: 2px solid var(--color-accent);
  border-color: var(--color-accent);
}

.form__textarea {
  resize: vertical;
  min-height: 100px;
}

/* Honeypot — niewidoczne pole antyspamowe */
.form__honeypot {
  display: none !important;
}

.form__hint {
  font-size: 0.85rem;
  color: var(--color-muted);
  margin-top: var(--space-xs);
}

.form__message {
  margin-top: var(--space-sm);
  padding: 0.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  display: none;
}

.form__message--success {
  display: block;
  background-color: rgba(37, 211, 102, 0.15);
  color: var(--color-whatsapp);
  border: 1px solid var(--color-whatsapp);
}

.form__message--error {
  display: block;
  background-color: rgba(255, 107, 53, 0.15);
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.whatsapp-note {
  text-align: center;
  margin-top: var(--space-md);
  color: var(--color-text-secondary);
}

/* ---------- 13. FOOTER ---------- */
.footer {
  background-color: var(--color-primary-dark);
  padding: var(--space-lg) 0 var(--space-md);
  border-top: 1px solid var(--color-border);
}

.footer__grid {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
  text-align: center;
}

.footer__title {
  color: var(--color-accent);
  margin-bottom: var(--space-xs);
  font-size: 1.1rem;
}

.footer__phone {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  display: inline-block;
  margin: var(--space-xs) 0;
}

.footer__text {
  color: var(--color-text-secondary);
  margin-bottom: var(--space-sm);
}

.social {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
}

.social__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1.3rem;
  transition: background-color 0.2s ease;
}

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

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  justify-content: center;
  margin-top: var(--space-sm);
}

.footer__nav a {
  color: var(--color-text-secondary);
  font-size: 0.9rem;
}

.footer__nav a:hover {
  color: var(--color-accent);
}

.footer__copy {
  text-align: center;
  color: var(--color-muted);
  font-size: 0.85rem;
  margin-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  padding-top: var(--space-md);
}

/* ---------- 14. STICKY CTA (MOBILE) ---------- */
.sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  gap: 0.5rem;
  padding: 0.5rem;
  background-color: var(--color-primary-dark);
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.5);
  z-index: 200;
}

.sticky-cta__call {
  flex: 1 1 auto;
}

.sticky-cta__whatsapp {
  flex: 0 0 auto;
  width: 56px;
  padding: 0.9rem;
}

/* ---------- 15. PORADNIK / ARTYKUŁY ---------- */
.article {
  max-width: 780px;
  margin: 0 auto var(--space-lg);
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
}

.article__title {
  color: var(--color-accent);
  font-size: 1.4rem;
  margin-bottom: var(--space-sm);
}

.article__lead {
  color: var(--color-muted);
  font-style: italic;
  margin-bottom: var(--space-md);
}

.article__subtitle {
  font-size: 1.1rem;
  margin: var(--space-md) 0 var(--space-xs);
  color: var(--color-text);
}

.article__placeholder-text {
  color: var(--color-muted);
  background-color: var(--color-primary);
  border-left: 3px solid var(--color-border);
  padding: var(--space-sm);
  border-radius: var(--radius);
  margin-bottom: var(--space-sm);
}

.article-list {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

.article-card {
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-md);
}

.article-card__title {
  color: var(--color-accent);
  font-size: 1.1rem;
  margin-bottom: var(--space-xs);
}

.article-card__text {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
  margin-bottom: var(--space-sm);
}

/* ---------- 16. GALERIA REALIZACJI ---------- */
.gallery {
  display: grid;
  gap: var(--space-md);
  grid-template-columns: 1fr;
}

/* ---------- 17. STRONA TYTUŁOWA PODSTRON ---------- */
.page-hero {
  background: linear-gradient(160deg, var(--color-primary-dark), var(--color-primary-light));
  padding: var(--space-xl) 0 var(--space-lg);
  text-align: center;
}

.page-hero__title {
  font-size: 1.8rem;
  margin-bottom: var(--space-sm);
}

.page-hero__subtitle {
  color: var(--color-text-secondary);
  max-width: 720px;
  margin: 0 auto;
}

/* ---------- 18. POMOCNICZE ---------- */
.text-center { text-align: center; }
.mt-lg { margin-top: var(--space-lg); }
.mb-lg { margin-bottom: var(--space-lg); }

.b2b-list {
  display: grid;
  gap: var(--space-sm);
  max-width: 720px;
  margin: 0 auto;
}

.b2b-list__item {
  background-color: var(--color-primary-light);
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius);
  padding: var(--space-sm);
  color: var(--color-text-secondary);
}

/* ============================================================
   19. MEDIA QUERIES — TABLET (768px+) i DESKTOP (1024px+)
   ============================================================ */

/* ---- TABLET ---- */
@media (min-width: 768px) {
  body {
    padding-bottom: 0; /* sticky CTA ukryty na tablet/desktop */
  }

  .section__title {
    font-size: 2rem;
  }

  .hero__title {
    font-size: 2.5rem;
  }

  .hero__cta {
    flex-direction: row;
    max-width: none;
    justify-content: center;
  }

  .pain-list {
    grid-template-columns: 1fr 1fr;
  }

  .cards {
    grid-template-columns: repeat(3, 1fr);
  }

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

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

  .article-list {
    grid-template-columns: 1fr 1fr;
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr 1fr;
    text-align: left;
  }

  .social {
    justify-content: flex-start;
  }

  .footer__nav {
    justify-content: flex-start;
  }

  /* Sticky CTA tylko na mobile */
  .sticky-cta {
    display: none;
  }
}

/* ---- DESKTOP ---- */
@media (min-width: 1024px) {
  /* Nawigacja pozioma */
  .nav__toggle {
    display: none;
  }

  .nav__list {
    display: flex;
    flex-direction: row;
    position: static;
    background: none;
    padding: 0;
    gap: 0.5rem;
    border: none;
  }

  .nav__link {
    padding: 0.5rem 0.8rem;
  }

  .hero__title {
    font-size: 2.9rem;
  }

  .gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}