/* ═══════════════════════════════════════════════════════════
   ŚCIEŻKA INWESTORSKA (B2B) — generalne wykonawstwo
   Ton: techniczny, rzeczowy, bez marketingowego lukru.
   Baza: navy + orange Instalator24.
   ═══════════════════════════════════════════════════════════ */

:root {
  --inv-steel: #1d2740;
  --inv-line: #e3e7f0;
}

/* ═══════════════ HERO ═══════════════ */
.inv-hero {
  position: relative;
  background: linear-gradient(135deg, var(--navy-dark) 0%, var(--inv-steel) 55%, var(--navy) 100%);
  padding: 58px 0 62px;
  overflow: hidden;
}
.inv-hero::before {
  content: '';
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.022) 1px, transparent 1px);
  background-size: 46px 46px;
}
.inv-hero::after {
  content: '';
  position: absolute; top: -140px; right: -140px; width: 460px; height: 460px; border-radius: 50%;
  background: radial-gradient(circle, rgba(222,152,47,0.13) 0%, transparent 68%);
}
.inv-hero .container { position: relative; z-index: 2; }
.inv-hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 54px; align-items: center; }

.inv-eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  background: rgba(222,152,47,0.14);
  border: 1px solid rgba(222,152,47,0.28);
  border-radius: 6px; padding: 8px 16px; margin-bottom: 22px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12px; font-weight: 800; letter-spacing: 1.6px; text-transform: uppercase;
  color: var(--orange-light);
}
.inv-eyebrow i { font-size: 13px; }

.inv-hero h1 {
  font-size: clamp(29px, 4vw, 46px);
  font-weight: 800; color: #fff; line-height: 1.13; letter-spacing: -0.8px; margin: 0 0 18px;
}
.inv-hero h1 span { color: var(--orange); }
.inv-hero-lead {
  font-size: 17px; line-height: 1.72; color: rgba(255,255,255,0.74); margin: 0 0 26px; max-width: 600px;
}
.inv-hero-lead strong { color: #fff; }

.inv-hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 30px; }

.inv-hero-stats {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px;
  padding-top: 24px; border-top: 1px solid rgba(255,255,255,0.13);
}
.inv-hero-stat strong {
  display: block; font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 27px; font-weight: 800; color: var(--orange); line-height: 1.05;
}
.inv-hero-stat span { font-size: 12.5px; color: rgba(255,255,255,0.56); line-height: 1.45; display: block; margin-top: 5px; }

/* Karta "dokumenty w porządku" */
.inv-cred-card {
  background: #fff; border-radius: 16px; padding: 28px 26px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.32);
}
.inv-cred-card h3 {
  font-size: 16px; margin: 0 0 4px; color: var(--navy);
  display: flex; align-items: center; gap: 9px;
}
.inv-cred-card h3 i { color: #16a34a; font-size: 16px; }
.inv-cred-card > p { font-size: 13px; color: var(--gray-500); margin: 0 0 20px; line-height: 1.55; }
.inv-cred-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.inv-cred-list li { display: flex; gap: 13px; align-items: flex-start; }
.inv-cred-list i {
  width: 30px; height: 30px; border-radius: 8px; flex-shrink: 0;
  background: rgba(34,197,94,0.1); color: #16a34a;
  display: flex; align-items: center; justify-content: center; font-size: 13px;
}
.inv-cred-list strong { display: block; font-size: 14px; color: var(--navy); font-family: 'Plus Jakarta Sans', sans-serif; line-height: 1.35; }
.inv-cred-list span { font-size: 12.5px; color: var(--gray-500); line-height: 1.5; }

/* ═══════════════ PASEK WIARYGODNOŚCI ═══════════════ */
.inv-trust {
  background: var(--off-white);
  border-bottom: 1px solid var(--inv-line);
  padding: 22px 0;
}
.inv-trust-inner {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.inv-trust-item { display: flex; align-items: center; gap: 12px; }
.inv-trust-item i { color: var(--orange); font-size: 20px; flex-shrink: 0; }
.inv-trust-item strong {
  display: block; font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 13.5px; color: var(--navy); line-height: 1.3;
}
.inv-trust-item span { font-size: 12px; color: var(--gray-500); }

/* ═══════════════ SEKCJE ═══════════════ */
.inv-section { padding: 80px 0; }
.inv-section--gray { background: var(--off-white); }
.inv-section--dark { background: linear-gradient(135deg, var(--navy-dark), var(--inv-steel)); }
.inv-section--dark h2, .inv-section--dark h3 { color: #fff; }

.inv-head { max-width: 720px; margin: 0 auto 46px; text-align: center; }
.inv-head--left { margin-left: 0; text-align: left; }
.inv-label {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12.5px; font-weight: 800; letter-spacing: 2.2px; text-transform: uppercase;
  color: var(--orange); margin-bottom: 14px;
}
.inv-label::before { content: ''; width: 32px; height: 3px; background: var(--orange); border-radius: 3px; }
.inv-head h2 {
  font-size: clamp(26px, 3.4vw, 37px); font-weight: 800;
  letter-spacing: -0.5px; margin: 0 0 15px; line-height: 1.2;
}
.inv-head p { font-size: 16.5px; line-height: 1.75; color: var(--gray-500); margin: 0; }
.inv-section--dark .inv-head p { color: rgba(255,255,255,0.62); }

/* ═══════════════ SEGMENTY KLIENTÓW ═══════════════ */
.inv-segments { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.inv-segment {
  background: #fff; border: 1px solid var(--inv-line); border-radius: 14px;
  padding: 28px 26px; transition: var(--transition); position: relative;
}
.inv-segment:hover { border-color: var(--orange); box-shadow: var(--shadow-md); transform: translateY(-4px); }
.inv-segment__icon {
  width: 48px; height: 48px; border-radius: 11px; margin-bottom: 16px;
  background: var(--navy); color: #fff;
  display: flex; align-items: center; justify-content: center; font-size: 20px;
}
.inv-segment h3 { font-size: 17px; margin: 0 0 9px; line-height: 1.3; }
.inv-segment p { font-size: 14px; line-height: 1.62; color: var(--gray-500); margin: 0; }

/* ═══════════════ ZAKRES BRANŻ ═══════════════ */
.inv-scope-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.inv-scope-col {
  background: #fff; border-radius: 16px; overflow: hidden;
  border: 1px solid var(--inv-line); display: flex; flex-direction: column;
}
.inv-scope-col__head {
  background: var(--navy); color: #fff; padding: 24px 26px;
}
.inv-scope-col__head i { font-size: 24px; color: var(--orange); margin-bottom: 11px; display: block; }
.inv-scope-col__head h3 { font-size: 18px; color: #fff; margin: 0 0 6px; }
.inv-scope-col__head p { font-size: 13px; color: rgba(255,255,255,0.62); margin: 0; line-height: 1.5; }
.inv-scope-col ul { list-style: none; padding: 22px 26px 26px; margin: 0; display: grid; gap: 11px; flex: 1; }
.inv-scope-col li {
  display: flex; align-items: flex-start; gap: 10px;
  font-size: 14px; line-height: 1.5; color: var(--gray-700);
}
.inv-scope-col li i { color: var(--orange); font-size: 11px; margin-top: 5px; flex-shrink: 0; }

/* ═══════════════ DLACZEGO MY (GW) ═══════════════ */
.inv-why { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.inv-why-item {
  display: flex; gap: 20px; align-items: flex-start;
  background: rgba(255,255,255,0.045);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 14px; padding: 26px 24px;
  transition: var(--transition);
}
.inv-why-item:hover { border-color: rgba(222,152,47,0.4); background: rgba(255,255,255,0.07); }
.inv-why-item__num {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 30px; font-weight: 800; color: rgba(222,152,47,0.32);
  line-height: 1; flex-shrink: 0; width: 44px;
}
.inv-why-item h3 { font-size: 16.5px; margin: 0 0 8px; color: #fff; line-height: 1.3; }
.inv-why-item p { font-size: 14px; line-height: 1.68; color: rgba(255,255,255,0.66); margin: 0; }
.inv-why-item strong { color: #fff; }

/* ═══════════════ PROCES ═══════════════ */
.inv-process { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; max-width: 1000px; margin: 0 auto; }
.inv-phase {
  padding: 28px 26px; border-left: 3px solid var(--inv-line); position: relative;
}
.inv-phase:first-child { border-left-color: var(--orange); }
.inv-phase__num {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12px; font-weight: 800; letter-spacing: 1.4px; text-transform: uppercase;
  color: var(--orange); margin-bottom: 10px; display: block;
}
.inv-phase h3 { font-size: 17px; margin: 0 0 9px; line-height: 1.3; }
.inv-phase p { font-size: 14px; line-height: 1.65; color: var(--gray-500); margin: 0 0 10px; }
.inv-phase ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 7px; }
.inv-phase li { font-size: 13.5px; color: var(--gray-700); display: flex; gap: 9px; align-items: flex-start; line-height: 1.5; }
.inv-phase li i { color: var(--orange); font-size: 10px; margin-top: 5px; flex-shrink: 0; }

/* ═══════════════ FORMULARZ B2B ═══════════════ */
.inv-form-section { background: linear-gradient(135deg, var(--navy-dark), var(--inv-steel)); padding: 82px 0; }
.inv-form-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 50px; align-items: start; }
.inv-form-aside h2 { color: #fff; font-size: clamp(25px, 3.2vw, 34px); margin: 0 0 15px; line-height: 1.2; }
.inv-form-aside > p { font-size: 16px; color: rgba(255,255,255,0.68); line-height: 1.72; margin: 0 0 26px; }
.inv-form-promise { list-style: none; padding: 0; margin: 0 0 26px; display: grid; gap: 13px; }
.inv-form-promise li { display: flex; gap: 12px; align-items: flex-start; font-size: 14.5px; color: rgba(255,255,255,0.85); line-height: 1.5; }
.inv-form-promise i { color: var(--orange); font-size: 13px; margin-top: 4px; flex-shrink: 0; }

.inv-person {
  display: flex; align-items: center; gap: 15px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.11);
  border-radius: 13px; padding: 17px 20px;
}
.inv-person__av {
  width: 52px; height: 52px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--orange), var(--orange-light));
  display: flex; align-items: center; justify-content: center;
  font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 800; font-size: 18px; color: #fff;
}
.inv-person strong { display: block; color: #fff; font-size: 15.5px; font-family: 'Plus Jakarta Sans', sans-serif; }
.inv-person span { font-size: 12.5px; color: rgba(255,255,255,0.55); display: block; margin-bottom: 4px; }
.inv-person a { color: var(--orange); font-size: 14px; font-weight: 700; }
.inv-person a:hover { color: var(--orange-light); }

/* Karta formularza */
.inv-form-card {
  background: #fff; border-radius: 18px; padding: 34px 32px;
  box-shadow: 0 24px 64px rgba(0,0,0,0.3);
}
.inv-form-card > h3 { font-size: 20px; margin: 0 0 5px; }
.inv-form-card > p { font-size: 13.5px; color: var(--gray-500); margin: 0 0 24px; }

.inv-fieldset { border: 0; padding: 0; margin: 0 0 22px; }
.inv-fieldset legend {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 11.5px; font-weight: 800; letter-spacing: 1.3px; text-transform: uppercase;
  color: var(--orange); padding: 0 0 12px; width: 100%;
  border-bottom: 1px solid var(--inv-line); margin-bottom: 16px;
}
.inv-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.inv-row--3 { grid-template-columns: 1fr 1fr 1fr; }
.inv-field { margin-bottom: 14px; }
.inv-field label {
  display: block; font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12.5px; font-weight: 700; color: var(--navy); margin-bottom: 6px;
}
.inv-field input[type="text"],
.inv-field input[type="tel"],
.inv-field input[type="email"],
.inv-field select,
.inv-field textarea {
  width: 100%; padding: 12px 15px;
  border: 1.5px solid var(--gray-200); border-radius: 8px;
  font-size: 14.5px; font-family: 'DM Sans', sans-serif;
  background: var(--off-white); color: var(--navy);
  outline: none; transition: var(--transition);
}
.inv-field input:focus, .inv-field select:focus, .inv-field textarea:focus {
  border-color: var(--orange); background: #fff; box-shadow: 0 0 0 4px rgba(222,152,47,0.1);
}
.inv-field textarea { resize: vertical; min-height: 96px; }
.inv-field small { display: block; font-size: 11.5px; color: var(--gray-500); margin-top: 5px; }

/* Checkboxy zakresu */
.inv-checks { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; }
.inv-check {
  display: flex; align-items: flex-start; gap: 9px;
  padding: 10px 13px; border: 1.5px solid var(--gray-200); border-radius: 8px;
  cursor: pointer; font-size: 13.5px; line-height: 1.4; color: var(--gray-700);
  transition: var(--transition); background: #fff;
}
.inv-check:hover { border-color: var(--orange); }
.inv-check:has(input:checked) { border-color: var(--orange); background: rgba(222,152,47,0.05); }
.inv-check input { accent-color: var(--orange); margin-top: 2px; flex-shrink: 0; width: 16px; height: 16px; }

.inv-consent {
  display: flex; gap: 11px; align-items: flex-start;
  font-size: 12px; color: var(--gray-500); line-height: 1.55;
  cursor: pointer; margin: 6px 0 18px;
}
.inv-consent input { accent-color: var(--orange); margin-top: 2px; flex-shrink: 0; width: 16px; height: 16px; }
.inv-consent a { color: var(--orange); text-decoration: underline; }

.inv-submit {
  width: 100%; padding: 16px 26px;
  background: var(--orange); color: #fff; border: 0; border-radius: 10px;
  font-family: 'Plus Jakarta Sans', sans-serif; font-size: 15.5px; font-weight: 800;
  cursor: pointer; transition: var(--transition);
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
}
.inv-submit:hover { background: var(--orange-dark); transform: translateY(-2px); box-shadow: var(--shadow-orange); }
.inv-submit[disabled] { opacity: 0.65; cursor: not-allowed; transform: none; }

/* ═══════════════ FAQ B2B ═══════════════ */
.inv-faq { max-width: 820px; margin: 0 auto; }
.inv-faq details {
  background: #fff; border: 1px solid var(--inv-line); border-radius: 12px;
  margin-bottom: 10px; overflow: hidden;
}
.inv-faq details[open] { border-color: var(--orange); }
.inv-faq summary {
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  padding: 18px 22px; cursor: pointer; list-style: none;
  font-family: 'Plus Jakarta Sans', sans-serif; font-weight: 700; font-size: 15px;
  color: var(--navy); line-height: 1.4;
}
.inv-faq summary::-webkit-details-marker { display: none; }
.inv-faq summary::after {
  content: '+'; font-size: 23px; font-weight: 400; color: var(--orange);
  transition: transform 0.3s ease; flex-shrink: 0; line-height: 1;
}
.inv-faq details[open] summary::after { transform: rotate(45deg); }
.inv-faq-a { padding: 0 22px 20px; font-size: 14.5px; line-height: 1.76; color: var(--gray-700); }
.inv-faq-a p { margin: 0 0 10px; }
.inv-faq-a p:last-child { margin-bottom: 0; }
.inv-faq-a strong { color: var(--navy); }

/* ═══════════════ BLOK B2B NA STRONIE GŁÓWNEJ ═══════════════ */
.inv-teaser {
  background: linear-gradient(135deg, var(--navy-dark), var(--inv-steel));
  padding: 68px 0; position: relative; overflow: hidden;
}
.inv-teaser::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.02) 1px, transparent 1px);
  background-size: 44px 44px;
}
.inv-teaser .container { position: relative; z-index: 2; }
.inv-teaser-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 48px; align-items: center; }
.inv-teaser h2 { color: #fff; font-size: clamp(25px, 3.2vw, 34px); margin: 0 0 15px; line-height: 1.2; }
.inv-teaser p { font-size: 16px; color: rgba(255,255,255,0.68); line-height: 1.72; margin: 0 0 24px; }
.inv-teaser-points { list-style: none; padding: 0; margin: 0 0 28px; display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.inv-teaser-points li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: rgba(255,255,255,0.85); line-height: 1.45; }
.inv-teaser-points i { color: var(--orange); font-size: 12px; margin-top: 4px; flex-shrink: 0; }
.inv-teaser-badges { display: grid; gap: 12px; }
.inv-teaser-badge {
  display: flex; align-items: center; gap: 14px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.11);
  border-radius: 12px; padding: 16px 20px;
}
.inv-teaser-badge i { color: var(--orange); font-size: 20px; flex-shrink: 0; width: 24px; text-align: center; }
.inv-teaser-badge strong { display: block; color: #fff; font-size: 14.5px; font-family: 'Plus Jakarta Sans', sans-serif; line-height: 1.3; }
.inv-teaser-badge span { font-size: 12.5px; color: rgba(255,255,255,0.55); }

/* ═══════════════ RESPONSIVE ═══════════════ */
@media (max-width: 1024px) {
  .inv-hero-grid { grid-template-columns: 1fr; gap: 36px; }
  .inv-trust-inner { grid-template-columns: repeat(2, 1fr); gap: 16px; }
  .inv-segments { grid-template-columns: repeat(2, 1fr); }
  .inv-scope-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .inv-why { grid-template-columns: 1fr; }
  .inv-process { grid-template-columns: 1fr; max-width: 620px; }
  .inv-phase { border-left-width: 3px; }
  .inv-form-grid { grid-template-columns: 1fr; gap: 36px; }
  .inv-teaser-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 640px) {
  .inv-hero { padding: 34px 0 40px; }
  .inv-hero-grid { gap: 28px; }
  .inv-hero h1 { font-size: 27px; line-height: 1.18; }
  .inv-hero-lead { font-size: 15.5px; margin-bottom: 22px; }
  .inv-eyebrow { font-size: 10.5px; letter-spacing: 1.2px; padding: 7px 13px; margin-bottom: 18px; }
  .inv-hero-actions { flex-direction: column; }
  .inv-hero-actions .btn { width: 100%; justify-content: center; }
  .inv-hero-stats { grid-template-columns: 1fr; gap: 14px; padding-top: 18px; }
  .inv-hero-stat { display: flex; align-items: baseline; gap: 12px; }
  .inv-hero-stat strong { font-size: 23px; }
  .inv-hero-stat span { margin-top: 0; font-size: 12px; }
  .inv-cred-card { padding: 24px 20px; }

  .inv-trust { padding: 18px 0; }
  .inv-trust-inner { grid-template-columns: 1fr; gap: 13px; }
  .inv-trust-item i { font-size: 18px; }

  .inv-section { padding: 52px 0; }
  .inv-head { margin-bottom: 32px; }
  .inv-head h2 { font-size: 24px; }
  .inv-head p { font-size: 15px; }

  .inv-segments { grid-template-columns: 1fr; gap: 14px; }
  .inv-segment { padding: 24px 22px; }

  .inv-scope-col__head { padding: 20px 22px; }
  .inv-scope-col ul { padding: 18px 22px 22px; }

  .inv-why-item { padding: 22px 20px; gap: 15px; }
  .inv-why-item__num { font-size: 25px; width: 34px; }

  .inv-phase { padding: 22px 20px; }

  .inv-form-section { padding: 52px 0; }
  .inv-form-card { padding: 26px 20px; border-radius: 14px; }
  .inv-row, .inv-row--3 { grid-template-columns: 1fr; gap: 0; }
  .inv-checks { grid-template-columns: 1fr; }
  .inv-field input, .inv-field select, .inv-field textarea { font-size: 16px !important; padding: 13px 15px; }
  .inv-submit { padding: 16px 20px; font-size: 15px; min-height: 54px; }

  .inv-faq summary { padding: 16px 18px; font-size: 14.5px; }
  .inv-faq-a { padding: 0 18px 17px; font-size: 14px; }

  .inv-teaser { padding: 48px 0; }
  .inv-teaser-points { grid-template-columns: 1fr; gap: 10px; }
  .inv-teaser-badge { padding: 14px 16px; }
}

@media (max-width: 380px) {
  .inv-hero h1 { font-size: 24px; }
  .inv-head h2 { font-size: 22px; }
  .inv-form-card { padding: 22px 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .inv-segment, .inv-why-item, .inv-submit { transition: none; }
  .inv-segment:hover, .inv-submit:hover { transform: none; }
}