/* --- ZMIENNE CSS (Zaktualizowane: Bardziej Energetyczne) --- */
    :root {
        --color-pink-bright: #ff1f8c; /* Jaskrawy róż z logo */
        --color-blue-bright: #00befa; /* Jaskrawy błękit z logo */
        --gradient-main: linear-gradient(135deg, var(--color-pink-bright) 0%, var(--color-blue-bright) 100%);
        --gradient-main-hover: linear-gradient(135deg, var(--color-blue-bright) 0%, var(--color-pink-bright) 100%);

        --text-dark: #0f172a; /* Głęboki granat do tekstu */
        --text-gray: #475569;
        --bg-light: #f1f5f9;
        --bg-cards: #ffffff;
        --white: #ffffff;

        --focus-ring: 4px solid var(--color-pink-bright);
        --border-radius-lg: 24px;
        --border-radius-md: 12px;
        --transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1); /* Płynna animacja */
        --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
    }

    /* --- BAZA --- */
    * { margin: 0; padding: 0; box-sizing: border-box; }

    html { scroll-behavior: smooth; } /* Płynne przewijanie do sekcji */

    body {
        font-family: 'Open Sans', sans-serif;
        color: var(--text-dark);
        line-height: 1.7;
        background-color: var(--white);
        overflow-x: hidden;
    }

    h1, h2, h3 { font-family: 'Poppins', sans-serif; }
    img { max-width: 100%; height: auto; display: block; border-radius: var(--border-radius-lg); }
    a { text-decoration: none; color: inherit; transition: var(--transition); }

    /* Accessibility Focus */
    a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
        outline: var(--focus-ring);
        outline-offset: 3px;
    }

    .spinner {
      width: 30px;
      height: 30px;
      border: 4px solid #eee;
      border-top: 4px solid #1877f2;
      border-radius: 50%;
      animation: spin 1s linear infinite;
      margin: auto;
    }

    @keyframes spin {
      to { transform: rotate(360deg); }
    }

    /* --- UTILITY CLASSES --- */
    .container { width: 100%; padding: 0 24px; margin: 0 auto; }
    @media (min-width: 768px) { .container { max-width: 720px; } }
    @media (min-width: 1024px) { .container { max-width: 1160px; } }

    .btn-primary {
        display: inline-flex;
        justify-content: center;
        align-items: center;
        background: var(--gradient-main);
        color: var(--white);
        font-weight: 700;
        padding: 16px 36px;
        border-radius: 50px;
        border: none;
        cursor: pointer;
        box-shadow: 0 6px 20px rgba(255, 31, 140, 0.3);
        text-transform: uppercase;
        font-size: 0.95rem;
        letter-spacing: 1px;
        position: relative;
        z-index: 1;
    }
    .btn-primary::after { /* Efekt hover gradientu */
        content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 100%;
        border-radius: 50px; background: var(--gradient-main-hover);
        opacity: 0; transition: var(--transition); z-index: -1;
    }
    .btn-primary:hover {
        transform: translateY(-3px);
        box-shadow: 0 10px 25px rgba(0, 190, 250, 0.4);
        color: var(--white);
    }
    .btn-primary:hover::after { opacity: 1; }

    .section-title {
        font-size: 2.5rem;
        font-weight: 800;
        margin-bottom: 25px;
        text-align: center;
        background: var(--gradient-main);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        line-height: 1.2;
    }
    .section-subtitle {
        text-align: center; color: var(--text-gray); max-width: 750px; margin: 0 auto 60px auto; font-size: 1.2rem;
    }

    /* --- HEADER & NAWIGACJA (Nowoczesna Szklana) --- */
    header {
        position: fixed; top: 0; left: 0; right: 0;
        background: rgba(255, 255, 255, 0.85);
        backdrop-filter: blur(15px); /* Efekt szkła */
        box-shadow: 0 2px 20px rgba(15, 23, 42, 0.05);
        z-index: 1000;
        border-bottom: 1px solid rgba(217, 70, 159, 0.1);
    }

    .nav-container { display: flex; justify-content: space-between; align-items: center; height: 90px; }
    .logo img { height: 50px; border-radius: 0; }

    .mobile-menu-btn { background: none; border: none; font-size: 32px; cursor: pointer; color: var(--color-pink-bright); padding: 5px; transition: var(--transition); }

    /* Wersja Mobilna Menu */
    .nav-links { display: none; }
    .nav-links.active {
        display: flex;
        flex-direction: column;
        position: absolute;
        top: 90px;
        left: 0;
        width: 100%;
        background: #ffffff;
        padding: 30px 24px 40px;
        box-shadow: 0 15px 30px rgba(15, 23, 42, 0.15);
        border-bottom: 1px solid rgba(217, 70, 159, 0.1);
        gap: 20px;
        align-items: center;
    }
    .nav-links.active a:not(.btn-primary) {
        font-size: 1.2rem;
        font-weight: 700;
        color: var(--text-dark);
        padding: 10px;
    }
    .nav-links.active .btn-primary {
        width: 100%;
        margin-top: 15px;
    }

    /* Wersja Desktop Menu */
    @media (min-width: 992px) {
        .mobile-menu-btn { display: none; }
        .nav-links { display: flex; gap: 35px; align-items: center; font-weight: 600; }
        .nav-links.active { display: flex; flex-direction: row; position: static; background: transparent; padding: 0; box-shadow: none; border: none; width: auto; }
        .nav-links a:hover { color: var(--color-blue-bright); transform: translateY(-1px); }
        .nav-links .btn-primary:hover { color: var(--white); }
        .nav-links.active a:not(.btn-primary) { padding: 0; font-size: 1rem; }
        .nav-links.active .btn-primary { width: auto; margin-top: 0; }
    }

    /* --- HERO SECTION (Energetyczna Split) --- */
    .hero {
        padding: 160px 0 80px;
        background-color: var(--white);
        position: relative;
    }
    .hero::before { /* Tło gradientowe z tyłu */
        content: ''; position: absolute; top: 0; right: 0; width: 60%; height: 100%;
        background: linear-gradient(to right, rgba(255, 255, 255, 1) 0%, rgba(241, 245, 249, 1) 100%); z-index: -1;
    }
    .hero-content { display: flex; flex-direction: column; gap: 50px; align-items: center; }
    .hero-text { text-align: center; }
    .hero h1 { font-size: 3rem; font-weight: 800; margin-bottom: 25px; line-height: 1.1; color: var(--text-dark); }
    .hero h1 span { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
    .hero p { font-size: 1.25rem; color: var(--text-gray); margin-bottom: 40px; max-width: 650px; margin-left: auto; margin-right: auto; }
    .hero-image { border: 10px solid var(--white); box-shadow: var(--shadow); border-radius: var(--border-radius-lg); }

    @media (min-width: 992px) {
        .hero { padding: 190px 0 120px; }
        .hero-content { flex-direction: row; text-align: left; }
        .hero-text { text-align: left; flex: 1.2; padding-right: 50px; }
        .hero-text p { margin-left: 0; margin-right: 0; }
        .hero-image { flex: 0.8; }
        .hero h1 { font-size: 4rem; }
    }

    /* --- KORZYŚCI (B2B Kolorowe Karty) --- */
    .benefits { padding: 100px 0; background-color: var(--bg-light); position: relative;}
    .grid-3 { display: grid; gap: 35px; }
    .benefit-card {
        background: var(--bg-cards); padding: 45px; border-radius: var(--border-radius-lg);
        text-align: center; position: relative; transition: var(--transition);
        box-shadow: var(--shadow); overflow: hidden;
    }
    .benefit-card::before { /* Kolorowa kreska na górze */
        content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 6px; background: var(--gradient-main);
    }
    .benefit-card:hover { transform: translateY(-8px); box-shadow: 0 15px 40px rgba(15, 23, 42, 0.12); }
    .benefit-icon { font-size: 3.5rem; margin-bottom: 25px; display: block;}
    .benefit-card h3 { font-size: 1.5rem; margin-bottom: 15px; color: var(--text-dark); font-weight: 700;}
    .benefit-card p { color: var(--text-gray); font-size: 1.05rem;}

    @media (min-width: 768px) { .grid-3 { grid-template-columns: repeat(3, 1fr); } }

    /* --- PRODUKTY (Musujące Panele) --- */
    .products { padding: 100px 0; background-color: var(--white); }
    .product-split { display: grid; gap: 60px; margin-bottom: 80px; align-items: center; background-color: var(--bg-light); padding: 50px; border-radius: var(--border-radius-lg); box-shadow: var(--shadow);}
    .product-image { box-shadow: 0 5px 15px rgba(15, 23, 42, 0.05); }
    .product-text h3 { font-size: 2rem; margin-bottom: 25px; font-weight: 700; color: var(--color-blue-bright); }
    .product-text p { font-size: 1.1rem; color: var(--text-gray); margin-bottom: 25px; }
    .product-text ul { list-style: none; margin-bottom: 30px; }
    .product-text ul li { position: relative; padding-left: 30px; margin-bottom: 12px; font-weight: 600; color: var(--text-dark); font-size: 1.05rem;}
    .product-text ul li::before { content: '✓'; position: absolute; left: 0; color: var(--color-pink-bright); font-weight: bold; font-size: 1.2rem;}

    @media (min-width: 992px) { .product-split { grid-template-columns: 1fr 1.1fr; } .product-split:nth-child(even) .product-text { order: -1; } .product-text { padding-left: 30px; } .product-split:nth-child(even) .product-text { padding-left: 0; padding-right: 30px; } }

    /* --- O NAS --- */
    .about { padding: 100px 0; background-color: var(--white); }
    .about-wrap { display: grid; gap: 50px; align-items: center; }
    .about-text { max-width: 600px;}
    .about-text p { font-size: 1.15rem; margin-bottom: 20px; color: var(--text-gray); }
    .about-image { border: 8px solid var(--white); box-shadow: var(--shadow); border-radius: var(--border-radius-lg); }
    @media (min-width: 768px) { .about-wrap { grid-template-columns: 1fr 1fr; } }

    /* --- KONTAKT (Nowoczesny Gradientowy Panel) --- */
    .contact { padding: 120px 0; background: var(--gradient-main); color: var(--white); position: relative; }
    .contact .section-title { background: none; -webkit-text-fill-color: var(--white); color: var(--white); }
    .contact .section-subtitle { color: rgba(255, 255, 255, 0.85); }

    .contact-wrap { display: grid; gap: 60px; background: var(--white); color: var(--text-dark); padding: 60px; border-radius: var(--border-radius-lg); box-shadow: 0 30px 60px rgba(15, 23, 42, 0.15); }

    .contact-info h3 { margin-bottom: 35px; font-size: 1.8rem; font-weight: 700; color: var(--color-pink-bright); }
    .contact-item { display: flex; align-items: center; gap: 20px; margin-bottom: 25px; font-weight: 600; font-size: 1.15rem;}
    .icon-circle { width: 55px; height: 55px; background: rgba(0, 190, 250, 0.1); border-radius: 50%; display: flex; justify-content: center; align-items: center; font-size: 1.5rem; color: var(--color-blue-bright); transition: var(--transition); }
    .contact-item:hover .icon-circle { background: rgba(255, 31, 140, 0.1); color: var(--color-pink-bright); transform: scale(1.1); }

    .contact-form { display: flex; flex-direction: column; gap: 25px; }
    .form-group label { display: block; margin-bottom: 10px; font-weight: 600; font-size: 0.95rem; color: var(--text-gray); }
    .form-group input, .form-group textarea {
        width: 100%; padding: 16px; border: 2px solid #e2e8f0; border-radius: var(--border-radius-md); font-family: inherit; font-size: 1.05rem; transition: var(--transition);
    }
    .form-group input:focus, .form-group textarea:focus { border-color: var(--color-blue-bright); outline: none; box-shadow: 0 0 10px rgba(0, 190, 250, 0.15); }
    .form-group textarea { resize: vertical; min-height: 140px; }

    @media (min-width: 992px) { .contact-wrap { grid-template-columns: 1fr 1.2fr; padding: 80px; } }

    /* --- FOOTER --- */
    footer { background: #0f172a; color: #94a3b8; padding: 60px 0 30px; text-align: center; }
    .footer-logo { max-width: 200px; margin: 0 auto 25px auto; }
    footer a { color: var(--color-blue-bright); font-weight: 600; }
    footer a:hover { color: var(--color-pink-bright); }