@layer theme,reset,base,layout,components,utilities;

/* ===== THEME ===== */
@layer theme {
  :root {
    --color-primary: oklch(0.58 0.12 210);
    --color-primary-btn: oklch(0.42 0.13 210);
    --color-primary-btn-hover: oklch(0.50 0.13 210);
    --color-navy: oklch(0.28 0.06 255);
    --color-navy-deep: oklch(0.22 0.05 255);
    --color-green: oklch(0.55 0.12 145);
    --color-sage: oklch(0.45 0.08 145);
    --color-white: oklch(1 0 0);
    --color-cream: oklch(0.98 0.008 180);
    --color-tint: oklch(0.97 0.005 220);
    --color-text: oklch(0.22 0.03 255);
    --color-text-muted: oklch(0.35 0.02 255);
    --color-glass: oklch(1 0 0 / 0.75);
    --focus-ring: oklch(0.58 0.12 210);

    --space-xs: clamp(0.25rem, 0.2rem + 0.25vw, 0.5rem);
    --space-sm: clamp(0.5rem, 0.4rem + 0.5vw, 0.875rem);
    --space-md: clamp(0.625rem, 0.5rem + 0.5vw, 1rem);
    --space-lg: clamp(1rem, 0.8rem + 0.75vw, 1.5rem);
    --section-pad: clamp(1.5rem, 1.2rem + 1vw, 2.25rem);
    --header-height: 4.5rem;

    --radius-sm: 0.5rem;
    --radius-lg: 1.25rem;
    --radius-xl: 1.5rem;
    --radius-full: 9999px;

    --font-size-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
    --font-size-lg: clamp(1.125rem, 1rem + 0.5vw, 1.375rem);
    --font-size-2xl: clamp(1.75rem, 1.5rem + 1.25vw, 2.5rem);
    --font-size-3xl: clamp(2.25rem, 1.8rem + 2vw, 3.5rem);

    --shadow-sm: 0 1px 3px oklch(0.28 0.06 255 / 0.08);
    --shadow-md: 0 4px 12px oklch(0.28 0.06 255 / 0.1);
    --shadow-lg: 0 8px 32px oklch(0.28 0.06 255 / 0.12);
    --shadow-glow: 0 0 40px oklch(0.58 0.12 210 / 0.15);
    --shadow-soft: 0 6px 20px oklch(0.28 0.06 255 / 0.1);
    --shadow-hero: 0 12px 48px oklch(0.28 0.06 255 / 0.12);
  }
}

/* ===== RESET ===== */
@layer reset {
  *, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }
  html {
    -webkit-text-size-adjust: 100%;
  }
  body, h1, h2, h3, h4, h5, h6, p, ul, ol, figure {
    margin: 0;
  }
  ul, ol {
    list-style: none;
  }
  a {
    text-decoration: none;
    color: inherit;
  }
  button, input, textarea, select {
    font: inherit;
    color: inherit;
    border: none;
    background: none;
  }
  img, svg {
    display: block;
    max-width: 100%;
    height: auto;
  }
}

/* ===== BASE ===== */
@layer base {
  html {
    scroll-behavior: smooth;
  }
  body {
    font-family: 'Inter', 'Plus Jakarta Sans', 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    font-size: var(--font-size-base);
    line-height: 1.7;
    color: var(--color-text);
    background-color: var(--color-white);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  :focus-visible {
    outline: 3px solid var(--focus-ring);
    outline-offset: 4px;
  }
  [id]:not([aria-live]) {
    scroll-margin-top: calc(var(--header-height) + 1rem);
  }
  h1 {
    font-size: var(--font-size-3xl);
    font-weight: 700;
    line-height: 1.15;
    color: var(--color-navy-deep);
  }
  h2 {
    font-size: var(--font-size-2xl);
    font-weight: 700;
    line-height: 1.2;
    color: var(--color-navy-deep);
    margin-bottom: var(--space-md);
  }
  h3 {
    font-size: var(--font-size-lg);
    font-weight: 600;
    line-height: 1.3;
    color: var(--color-navy);
  }
  p {
    color: var(--color-text-muted);
  }
  strong {
    color: var(--color-text);
    font-weight: 600;
  }
}

/* ===== LAYOUT ===== */
@layer layout {
  .container {
    width: 100%;
    max-width: 72rem;
    margin-inline: auto;
    padding-inline: var(--space-md);
  }
  .hero,
  .about-section,
  .approach-section,
  .services-section,
  .patient-section,
  .faq-section,
  .contact-section {
    padding-block: var(--section-pad);
  }
  .privacy-section {
    padding-block: var(--section-pad);
    background-color: var(--color-white);
    border-top: 1px solid oklch(0.9 0.01 210);
  }
  .site-footer {
    padding-block: var(--section-pad);
    background-color: var(--color-navy-deep);
    color: oklch(0.85 0.02 210);
  }

  .hero {
    background: linear-gradient(160deg, oklch(0.985 0.006 180) 0%, oklch(0.975 0.004 200) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - var(--header-height));
  }
  .about-section {
    background-color: var(--color-white);
  }
  .approach-section {
    background-color: var(--color-tint);
  }
  .services-section {
    background-color: var(--color-white);
  }
  .patient-section {
    background-color: var(--color-tint);
  }
  .faq-section {
    background-color: var(--color-white);
  }
  .contact-section {
    background-color: var(--color-cream);
  }

  .hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-lg);
    align-items: center;
    text-align: left;
  }

  .about-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-lg);
    align-items: center;
  }

  .services-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }

  .pain-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }

  .contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: var(--space-lg);
    align-items: start;
  }

  .footer-grid {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-md);
    justify-content: space-between;
  }

  @media (max-width: 48rem) {
    .hero-grid,
    .about-grid,
    .contact-grid {
      grid-template-columns: 1fr;
    }
    .hero {
      min-height: auto;
      padding-block: var(--section-pad);
    }
    .hero-grid {
      text-align: center;
    }
    .hero-text {
      justify-items: center;
    }
    .hero-image {
      order: -1;
    }
    .services-grid {
      grid-template-columns: 1fr;
    }
    .pain-points {
      grid-template-columns: 1fr;
    }
    .footer-grid {
      flex-direction: column;
      text-align: center;
    }
  }
}

/* ===== COMPONENTS ===== */
@layer components {
  /* Skip link */
  .skip-link {
    position: absolute;
    top: -100%;
    left: var(--space-sm);
    z-index: 1000;
    padding: var(--space-sm) var(--space-md);
    background-color: var(--color-navy-deep);
    color: var(--color-white);
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: top 0.2s ease;
  }
  .skip-link:focus {
    top: var(--space-sm);
  }

  /* Noscript banner */
  .noscript-banner {
    padding: var(--space-md);
    background-color: oklch(0.95 0.03 210);
    border-bottom: 2px solid var(--color-primary);
    font-size: 0.9rem;
  }
  .noscript-banner ul {
    display: flex;
    gap: var(--space-md);
    margin-block: var(--space-xs);
  }
  .noscript-banner a {
    color: var(--color-primary);
    text-decoration: underline;
  }

  /* Section subtitle */
  .section-subtitle {
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--color-sage);
    margin-bottom: var(--space-xs);
  }

  /* Header / Nav */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    height: var(--header-height);
    background-color: var(--color-glass);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid oklch(0.9 0.01 210 / 0.5);
    will-change: transform;
    transition: transform 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  }
  .site-header.header-hidden {
    transform: translateY(calc(-1 * var(--header-height)));
  }
  .main-nav {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 72rem;
    margin-inline: auto;
    padding-inline: var(--space-md);
  }
  .nav-logo img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 8px;
  }
  .nav-toggle {
    display: none;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    border-radius: var(--radius-sm);
    position: relative;
  }
  .nav-toggle-icon {
    position: relative;
    display: block;
    width: 22px;
    height: 2px;
    background-color: var(--color-navy);
    border-radius: 1px;
    transition: background-color 0.3s ease;
  }
  .nav-toggle-icon::before,
  .nav-toggle-icon::after {
    content: '';
    position: absolute;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--color-navy);
    border-radius: 1px;
    transition: transform 0.3s ease;
  }
  .nav-toggle-icon::before { top: -7px; }
  .nav-toggle-icon::after { top: 7px; }
  .nav-toggle[aria-expanded="true"] .nav-toggle-icon {
    background-color: transparent;
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
    transform: translateY(-7px) rotate(-45deg);
  }
  .nav-panel {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
  }
  .nav-list {
    display: flex;
    gap: var(--space-md);
  }
  .nav-list a {
    font-weight: 500;
    color: var(--color-text);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: color 0.2s ease, background-color 0.2s ease;
    min-height: 44px;
    display: flex;
    align-items: center;
  }
  .nav-list a:hover {
    color: var(--color-primary);
    background-color: oklch(0.58 0.12 210 / 0.08);
  }

  /* Buttons */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 48px;
    min-width: 48px;
    padding: var(--space-sm) var(--space-lg);
    font-weight: 600;
    font-size: 1rem;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: transform 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease, border-color 0.2s ease;
  }
  .btn:hover {
    transform: translateY(-2px);
  }
  .btn-primary {
    background-color: var(--color-primary-btn);
    color: var(--color-white);
    box-shadow: 0 4px 16px oklch(0.42 0.13 210 / 0.3);
  }
  .btn-primary:hover {
    background-color: var(--color-primary-btn-hover);
    box-shadow: 0 6px 24px oklch(0.42 0.13 210 / 0.4);
  }
  .btn-sm {
    min-height: 40px;
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
  }

  /* Text-link secondary CTA */
  .btn-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 600;
    font-size: 1rem;
    color: var(--color-navy);
    min-height: 48px;
    padding: var(--space-sm) var(--space-sm);
    position: relative;
    transition: color 0.2s ease;
  }
  .btn-link::after {
    content: '';
    position: absolute;
    bottom: calc(var(--space-sm) - 2px);
    left: var(--space-sm);
    right: var(--space-sm);
    height: 2px;
    background-color: var(--color-navy);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
  }
  .btn-link:hover {
    color: var(--color-primary);
  }
  .btn-link:hover::after {
    transform: scaleX(1);
    background-color: var(--color-primary);
  }
  .btn-link-arrow {
    transition: transform 0.2s ease;
  }
  .btn-link:hover .btn-link-arrow {
    transform: translateX(4px);
  }

  /* Hero */
  .hero-text {
    display: grid;
    gap: var(--space-md);
    justify-items: start;
  }
  .hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-muted);
    max-width: 30rem;
    line-height: 1.7;
  }
  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: var(--space-md);
    margin-top: var(--space-md);
    justify-content: flex-start;
  }

  /* Hero image – pop-out frame */
  .hero-image {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .hero-image-frame {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: visible;
    box-shadow: var(--shadow-hero);
    background: linear-gradient(145deg, oklch(0.95 0.02 210) 0%, oklch(0.97 0.01 180) 100%);
    padding: 0.6rem;
  }
  .hero-image-frame::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-xl);
    background: linear-gradient(180deg, transparent 60%, oklch(0.28 0.06 255 / 0.05) 100%);
    pointer-events: none;
    z-index: 1;
  }
  .hero-image-frame img {
    width: 100%;
    height: auto;
    max-height: 480px;
    object-fit: cover;
    border-radius: calc(var(--radius-xl) - 0.3rem);
    display: block;
    transform: translateY(-0.5rem);
    box-shadow: 0 8px 32px oklch(0.28 0.06 255 / 0.15);
  }

  /* About section */
  .about-card {
    display: grid;
    gap: var(--space-lg);
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-soft);
    padding: var(--space-lg);
    border: 1px solid oklch(0.93 0.01 210);
  }
  .about-text {
    display: grid;
    gap: var(--space-md);
  }

  /* Certificates */
  .cert-heading {
    font-size: 1rem;
    font-weight: 600;
    color: var(--color-navy-deep);
    margin-top: var(--space-sm);
  }
  .cert-hint {
    font-size: 0.85rem;
    font-style: italic;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
  }
  .certificates-grid {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-sm);
  }
  .certificates-grid li {
    display: inline-flex;
  }
  .cert-badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.85rem;
    background-color: oklch(0.97 0.01 210);
    border: 1px solid oklch(0.9 0.015 210);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
    text-align: left;
    min-height: 44px;
  }
  .cert-badge:hover {
    background-color: oklch(0.95 0.02 210);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
  }
  .cert-icon {
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background-color: oklch(0.95 0.01 210);
    border-radius: 50%;
  }
  .cert-text {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-navy-deep);
    line-height: 1.3;
  }
  .cert-org {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    line-height: 1.3;
  }

  /* Certificate Modal */
  .cert-modal {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-md);
  }
  .cert-modal[hidden] {
    display: none;
  }
  .cert-modal-backdrop {
    position: absolute;
    inset: 0;
    background-color: oklch(0.22 0.05 255 / 0.7);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    cursor: pointer;
  }
  .cert-modal-dialog {
    position: relative;
    max-width: 560px;
    width: 100%;
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    padding: var(--space-md);
    animation: modalIn 0.3s ease;
  }
  @keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(12px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
  }
  .cert-modal-close {
    position: absolute;
    top: var(--space-sm);
    right: var(--space-sm);
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: var(--color-text-muted);
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
    z-index: 2;
  }
  .cert-modal-close:hover {
    background-color: oklch(0.95 0.01 210);
    color: var(--color-navy-deep);
  }
  .cert-modal-img {
    width: 100%;
    height: auto;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-sm);
  }
  .cert-modal-caption {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-align: center;
    line-height: 1.5;
  }

  /* ===== APPROACH – PAIN POINTS ===== */
  .approach-header {
    display: grid;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
  }

  .pain-points {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-md);
  }
  .pain-point {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: grid;
    gap: var(--space-sm);
    border: 1px solid oklch(0.92 0.01 210);
    box-shadow: var(--shadow-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
  }
  .pain-point:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
  }
  .pain-point h3 {
    font-size: 1.05rem;
    color: var(--color-navy-deep);
  }
  .pain-point p {
    font-size: 0.9rem;
    line-height: 1.6;
  }

  /* ===== SERVICES / CENNIK ===== */
  .services-header {
    margin-bottom: var(--space-lg);
  }

  .service-card {
    background-color: var(--color-white);
    border: 1px solid oklch(0.92 0.01 210);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    display: grid;
    gap: var(--space-sm);
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    position: relative;
  }
  .service-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    border-color: oklch(0.58 0.12 210 / 0.3);
  }
  .service-featured {
    border: 2px solid var(--color-primary);
    box-shadow: 0 4px 20px oklch(0.58 0.12 210 / 0.12);
  }
  .service-featured:hover {
    box-shadow: 0 8px 32px oklch(0.58 0.12 210 / 0.2);
  }
  .service-tag {
    position: absolute;
    top: -0.6rem;
    right: var(--space-md);
    background-color: var(--color-primary-btn);
    color: var(--color-white);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.6rem;
    border-radius: var(--radius-full);
  }
  .service-top {
    display: grid;
    gap: 0.25rem;
  }
  .service-top h3 {
    font-size: 1.1rem;
    color: var(--color-navy-deep);
  }
  .service-meta {
    font-size: 0.8rem;
    color: var(--color-sage);
    font-weight: 500;
  }
  .service-desc {
    font-size: 0.9rem;
    line-height: 1.6;
    color: var(--color-text-muted);
  }
  .service-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: var(--space-xs);
    padding-top: var(--space-sm);
    border-top: 1px solid oklch(0.93 0.01 210);
  }
  .service-price {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-primary-btn);
  }

  /* ===== DLA PACJENTA ===== */
  .patient-header {
    display: grid;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
  }
  .patient-intro {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--color-text);
  }
  .lab-card {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    border: 1px solid oklch(0.92 0.01 210);
    box-shadow: var(--shadow-sm);
    display: grid;
    gap: var(--space-md);
  }
  .lab-list {
    display: grid;
    gap: var(--space-sm);
  }
  .lab-list li {
    display: grid;
    gap: 0.2rem;
    padding: var(--space-sm) var(--space-md);
    background-color: oklch(0.98 0.005 210);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--color-primary);
    font-size: 0.9rem;
    line-height: 1.5;
  }
  .lab-list li strong {
    font-size: 0.85rem;
    color: var(--color-navy-deep);
  }
  .lab-list li span {
    color: var(--color-text-muted);
  }
  .lab-warning {
    padding: var(--space-md);
    background-color: oklch(0.97 0.02 80);
    border: 1px solid oklch(0.85 0.06 80);
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    line-height: 1.6;
  }
  .lab-warning p {
    color: var(--color-text);
  }

  /* ===== FAQ ===== */
  .faq-header {
    display: grid;
    gap: var(--space-xs);
    margin-bottom: var(--space-lg);
  }
  .faq-list {
    display: grid;
    gap: var(--space-sm);
    max-width: 56rem;
  }
  .faq-item {
    background-color: var(--color-white);
    border: 1px solid oklch(0.92 0.01 210);
    border-radius: var(--radius-sm);
    overflow: hidden;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
  }
  .faq-item:hover {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-sm);
  }
  .faq-item[open] {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-md);
  }
  .faq-item summary {
    padding: var(--space-md) var(--space-lg);
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--color-navy-deep);
    cursor: pointer;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-sm);
    min-height: 44px;
    transition: background-color 0.2s ease;
  }
  .faq-item summary:hover {
    background-color: oklch(0.97 0.005 210);
  }
  .faq-item summary::after {
    content: '+';
    font-size: 1.2rem;
    font-weight: 400;
    color: var(--color-primary);
    flex-shrink: 0;
    transition: transform 0.3s ease;
  }
  .faq-item[open] summary::after {
    transform: rotate(45deg);
  }
  .faq-answer {
    padding: 0 var(--space-lg) var(--space-md);
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--color-text-muted);
  }

  /* Contact */
  .contact-info {
    display: grid;
    gap: var(--space-md);
  }
  .contact-details {
    display: grid;
    gap: var(--space-sm);
  }
  .contact-details li {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
  }
  .contact-label {
    font-weight: 600;
    color: var(--color-text);
    min-width: 5rem;
  }
  .contact-details a {
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
  }
  /* Form */
  .contact-form {
    background-color: var(--color-white);
    border-radius: var(--radius-lg);
    padding: var(--space-lg);
    box-shadow: var(--shadow-md);
    display: grid;
    gap: var(--space-md);
  }
  .form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-md);
  }
  .form-group {
    display: grid;
    gap: var(--space-xs);
  }
  .form-group label {
    font-weight: 500;
    font-size: 0.9rem;
    color: var(--color-text);
  }
  .form-group input[type="text"],
  .form-group input[type="email"],
  .form-group input[type="tel"],
  .form-group textarea,
  .form-group select {
    width: 100%;
    padding: var(--space-sm) var(--space-md);
    border: 1.5px solid oklch(0.85 0.01 210);
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
    min-height: 44px;
    color: var(--color-text);
    background-color: var(--color-white);
  }
  .form-group textarea {
    resize: vertical;
    min-height: 100px;
  }
  .form-group select {
    appearance: none;
    -webkit-appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath d='M3 5l3 3 3-3' stroke='%23666' stroke-width='1.5' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.75rem center;
    padding-right: 2.25rem;
    cursor: pointer;
  }
  .form-group input:focus,
  .form-group textarea:focus,
  .form-group select:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px oklch(0.58 0.12 210 / 0.15);
    outline: none;
  }
  .form-checkbox label {
    display: flex;
    align-items: flex-start;
    gap: var(--space-xs);
    font-size: 0.85rem;
    line-height: 1.5;
    cursor: pointer;
    color: var(--color-text-muted);
  }
  .form-checkbox input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    accent-color: var(--color-primary-btn);
    flex-shrink: 0;
  }
  .form-checkbox a {
    color: var(--color-primary);
    text-decoration: underline;
  }
  .form-submit {
    justify-self: start;
    min-width: 12rem;
  }

  /* Honeypot */
  .hp-field {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  /* Live region */
  .form-live-region {
    padding: var(--space-sm) var(--space-md);
    max-width: 72rem;
    margin-inline: auto;
    font-weight: 500;
    color: var(--color-green);
    min-height: 1.5em;
  }

  /* Privacy section */
  .privacy-section p {
    margin-bottom: var(--space-sm);
    font-size: 0.9rem;
    max-width: 56rem;
    color: var(--color-text-muted);
  }
  .privacy-section a {
    color: var(--color-primary);
    text-decoration: underline;
  }

  /* Footer */
  .footer-logo img {
    width: 48px;
    height: 48px;
    object-fit: contain;
    border-radius: 8px;
    opacity: 0.8;
  }
  .footer-nav ul {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-md);
  }
  .footer-nav a {
    font-size: 0.9rem;
    color: oklch(0.8 0.02 210);
    transition: color 0.2s ease;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
  }
  .footer-nav a:hover {
    color: var(--color-white);
  }
  .footer-nav a[aria-current="page"] {
    color: var(--color-white);
    font-weight: 600;
  }
  .footer-social {
    display: flex;
    gap: var(--space-sm);
  }
  .footer-social a {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    color: oklch(0.85 0.02 210);
    transition: background-color 0.2s ease, color 0.2s ease;
  }
  .footer-social a:hover {
    background-color: oklch(1 0 0 / 0.1);
    color: var(--color-white);
  }
  .footer-copy {
    font-size: 0.8rem;
    color: oklch(0.65 0.02 210);
    width: 100%;
    text-align: center;
    margin-top: var(--space-sm);
  }

  /* ===== MOBILE OVERRIDES ===== */
  @media (max-width: 48rem) {
    /* Nav mobile */
    .nav-toggle {
      display: flex;
    }
    .nav-panel {
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      flex-direction: column;
      align-items: stretch;
      padding: var(--space-md);
      background-color: oklch(1 0 0 / 0.85);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
      border-bottom: 1px solid oklch(0.9 0.01 210 / 0.5);
      box-shadow: var(--shadow-md);
      transform: translateY(-8px);
      opacity: 0;
      visibility: hidden;
      transition: transform 0.3s ease, opacity 0.3s ease, visibility 0.3s ease;
    }
    .nav-panel:not([aria-hidden="true"]) {
      transform: translateY(0);
      opacity: 1;
      visibility: visible;
    }
    .nav-list {
      flex-direction: column;
      gap: 0;
    }
    .nav-list a {
      width: 100%;
      padding: var(--space-sm) var(--space-md);
    }
    .nav-cta {
      margin-top: var(--space-sm);
      text-align: center;
    }
    /* Fallback: solid background where backdrop-filter is not supported */
    @supports not ((backdrop-filter: blur(1px)) or (-webkit-backdrop-filter: blur(1px))) {
      .nav-panel {
        background-color: var(--color-white);
      }
    }

    /* Hero mobile */
    .hero-image-frame img {
      max-height: 320px;
      width: auto;
      max-width: 240px;
      margin-inline: auto;
    }
    .hero-actions {
      justify-content: center;
    }
    .hero-text {
      justify-items: center;
    }

    /* About card mobile */
    .about-card {
      padding: var(--space-lg) var(--space-md);
    }

    /* About section – always visible on mobile (no fade-in animation) */
    .about-section [data-fade] {
      opacity: 1;
      transform: none;
      transition: none;
    }

    /* Pain points mobile */
    .pain-points {
      grid-template-columns: 1fr;
    }

    /* Lab card mobile */
    .lab-card {
      padding: var(--space-md);
    }

    /* Form – single column */
    .form-row {
      grid-template-columns: 1fr;
    }

    /* Service cards */
    .service-card {
      padding: var(--space-md);
    }
    .service-footer {
      flex-direction: row;
      gap: var(--space-sm);
    }
  }
}

/* ===== UTILITIES ===== */
@layer utilities {
  .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;
  }
  [data-fade] {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }
  [data-fade].fade-visible {
    opacity: 1;
    transform: translateY(0);
  }

  /* ===== STRONA 404 ===== */
  .error-page {
    display: grid;
    place-items: center;
    min-height: calc(100dvh - var(--header-height));
    text-align: center;
    padding: 2rem;
  }
  .error-code {
    font-size: clamp(6rem, 20vw, 12rem);
    font-weight: 900;
    line-height: 1;
    color: var(--color-primary);
    opacity: 0.15;
    user-select: none;
    animation: error-float 10s ease infinite;
  }
  .error-page p:not(.error-code) {
    margin-block: var(--space-md);
    max-width: 45ch;
    margin-inline: auto;
    color: var(--color-text-muted);
  }
  .error-cta {
    display: inline-block;
    margin-top: 2rem;
    padding: 0.75rem 2rem;
    background: var(--color-primary-btn);
    color: var(--color-white);
    text-decoration: none;
    border-radius: var(--radius-full);
    font-weight: 700;
    min-height: 44px;
    min-width: 44px;
    transition: background-color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
  }
  .error-cta:hover {
    background: var(--color-primary-btn-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 24px oklch(0.42 0.13 210 / 0.4);
  }
  @keyframes error-float {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
  }

  /* ===== STRONY PRAWNE ===== */
  .legal-page {
    max-width: 65ch;
    margin-inline: auto;
    padding-block: 2rem 4rem;
  }
  .legal-page h2 {
    margin-block: 2rem 0.75rem;
  }
  .legal-page h3 {
    margin-block: 1.5rem 0.5rem;
  }
  .legal-page p,
  .legal-page li {
    margin-block: 0.5rem;
  }
  .legal-page ol,
  .legal-page ul {
    padding-left: 1.5rem;
    list-style: decimal;
  }
  .legal-page ul {
    list-style: disc;
  }
  .legal-toc {
    columns: 2;
    column-gap: 2rem;
    margin-block: 1.5rem;
    padding: var(--space-md);
    background-color: var(--color-tint);
    border-radius: var(--radius-lg);
    border: 1px solid oklch(0.9 0.01 210);
  }
  .legal-toc a {
    display: block;
    padding-block: 0.5rem;
    color: var(--color-primary);
    text-decoration: underline;
    text-underline-offset: 2px;
    transition: color 0.2s ease;
  }
  .legal-toc a:hover {
    color: var(--color-primary-btn);
  }

  /* Download card – Załącznik nr 1 */
  .download-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-sm);
    margin-block: var(--space-lg);
    padding: var(--space-lg) var(--space-md);
    border: 1px solid oklch(0.9 0.01 210);
    border-radius: var(--radius-lg);
    background-color: var(--color-tint);
    text-align: center;
  }
  .download-btn {
    gap: 0.5rem;
  }
  .download-file {
    font-size: 0.85rem;
    color: var(--color-text-muted);
  }

  @media (max-width: 48rem) {
    .legal-toc {
      columns: 1;
    }
  }
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  [data-fade] {
    opacity: 1;
    transform: none;
  }
  .site-header {
    transition: none;
  }
  .cert-modal-dialog {
    animation: none;
  }
}