:root {
    --brand-cyan: #00d2ff;
    --brand-blue: #0045ff;
    --brand-purple: #9d50bb;
    --text-bright: #ffffff;
    --dark-bg: #0a1428; /* Kolor pasujący do Twojego gradientu tła */
}

/* CAŁKOWITE WYELIMINOWANIE BIAŁEGO TŁA */

html {
    /* To wymusza, by pod wszystkim zawsze był ciemny kolor */
    background: var(--dark-bg) !important;
    margin: 0;
    padding: 0;
    height: 100%;
    /* Zapobiega dziwnym skokom przy pasku adresu */
    scroll-behavior: smooth;
}

body {
    /* Kluczowa zmiana: tło nadajemy tutaj, ale bez 'fixed', co na telefonach często psuje dół strony */
    background: linear-gradient(rgba(10, 20, 40, 0.9), rgba(10, 20, 40, 0.9)), 
                url('images/background.png') no-repeat center center;
    background-attachment: scroll; /* Na mobilkach 'scroll' działa stabilniej niż 'fixed' */
    background-size: cover;
    
    color: var(--text-bright);
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    min-height: 100dvh;
    
    /* Blokada paska na dole */
    overflow-x: hidden;
    display: block; 
    position: relative;
}
 




/* Logo - 18% wysokości strony */
.navbar-logo {
    height: 18vh; 
    min-height: 80px; 
    max-height: 150px; 
    width: auto;
    display: block;
}

/* Napis PartnerQR w nawigacji */
.brand-text-custom {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--brand-cyan), var(--brand-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

/* Normalnej wielkości przycisk logowania */
.btn-login-custom {
    color: white;
    border: 2px solid var(--brand-cyan);
    background: transparent;
    font-weight: 600;
    padding: 8px 25px; 
    border-radius: 8px;
    transition: all 0.3s ease;
}

.btn-login-custom:hover {
    background: var(--brand-cyan);
    color: #0a1428;
    box-shadow: 0 0 15px rgba(0, 210, 255, 0.4);
}

/* Nawigacja bez szarości */
.navbar-dark .navbar-nav .nav-link {
    color: #ffffff !important;
    font-size: 1.1rem;
}

.navbar-dark .navbar-nav .nav-link:hover {
    color: var(--brand-cyan) !important;
}

/* Teksty w body bez szarości */
.lead, .feature-box p {
    color: #ffffff !important;
}

/* Gradient dla h1 i innych wyróżnień */
.gradient-text {
    background: linear-gradient(90deg, var(--brand-cyan), var(--brand-purple));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-weight: 800;
}

/* Szklana karta instrukcji */
.glass-card-white {
    background: #ffffff;
    border-radius: 24px;
    padding: 30px;
}

/* Numeracja w krokach */
.step-number-circle {
    background: linear-gradient(135deg, var(--brand-cyan), var(--brand-purple));
    color: white;
    width: 35px;
    height: 35px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    margin: 0 auto 15px auto;
    font-weight: 800;
}

/* Styl dla obrazków w instrukcji */
.img-custom-height {
    max-height: 65vh;
    width: auto;
    object-fit: contain;
    border: 2px solid rgba(255, 255, 255, 0.1);
}

/* Oprawa obrazka (delikatny efekt szkła) */
.image-glass-wrapper {
    background: rgba(255, 255, 255, 0.05);
    padding: 20px;
    border-radius: 30px;
    display: inline-block;
    backdrop-filter: blur(5px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

/* Wyraźne nagłówki sekcji */
h3 {
    font-size: 1.8rem;
    letter-spacing: -0.5px;
}

/* Wyeliminowanie szarych tekstów */
p {
    color: #ffffff !important;
    opacity: 1 !important;
}

/* Styl dla FAQ */
.custom-faq .accordion-item {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    margin-bottom: 15px;
    border-radius: 12px !important;
    overflow: hidden;
}

.custom-faq .accordion-button {
    background: transparent !important;
    color: #ffffff !important;
    font-weight: 600;
    padding: 20px;
    box-shadow: none !important;
}

.custom-faq .accordion-button:not(.collapsed) {
    color: var(--brand-cyan) !important;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.custom-faq .accordion-button::after {
    filter: brightness(0) invert(1);
}

.custom-faq .accordion-body {
    color: #ffffff !important;
    line-height: 1.6;
    background: rgba(0, 0, 0, 0.2);
}

/* Usunięcie domyślnych obramowań Bootstrapa */
.accordion-button:focus {
    border-color: var(--brand-cyan);
    box-shadow: 0 0 0 0.25rem rgba(0, 210, 255, 0.25);
}

/* Nowoczesna ciemna szklana karta */
.glass-card-dark {
    background: rgba(255, 255, 255, 0.07);
    backdrop-filter: blur(15px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 24px;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    color: white;
}

/* Stylizacja pól formularza */
.custom-input {
    background: rgba(255, 255, 255, 0.05) !important;
    border: 1px solid rgba(255, 255, 255, 0.2) !important;
    border-radius: 10px !important;
    color: white !important;
    padding: 12px 15px !important;
    transition: all 0.3s ease;
}

.custom-input::placeholder {
    color: rgba(255, 255, 255, 0.6) !important;
}

.custom-input:focus {
    background: rgba(255, 255, 255, 0.1) !important;
    border-color: var(--brand-cyan) !important;
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.3) !important;
    outline: none;
}

/* Przycisk z gradientem */
.btn-gradient-primary {
    background: linear-gradient(90deg, var(--brand-cyan), var(--brand-purple));
    border: none;
    color: white;
    font-weight: 700;
    padding: 12px;
    border-radius: 10px;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-gradient-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(157, 80, 187, 0.4);
    color: white;
}

/* Przycisk obrysowany cyjanem */
.btn-outline-cyan {
    border: 2px solid var(--brand-cyan);
    color: var(--brand-cyan);
    font-weight: 700;
    padding: 10px;
    border-radius: 10px;
    transition: all 0.3s ease;
}

.btn-outline-cyan:hover {
    background: var(--brand-cyan);
    color: #0a1428;
}

/* Elementy dekoracyjne */
.bg-dark-glass {
    background: #0d1629;
    color: white;
    font-weight: bold;
}

/* Customowe Alerty */
.alert-custom-danger {
    background: rgba(220, 53, 69, 0.2);
    border: 1px solid #dc3545;
    color: #ff8a94;
    border-radius: 12px;
}

.alert-custom-success {
    background: rgba(40, 167, 69, 0.2);
    border: 1px solid var(--brand-cyan);
    color: var(--brand-cyan);
    border-radius: 12px;
}

/* Badge dla kodu partnera */
.bg-cyan {
    background-color: var(--brand-cyan) !important;
}

/* Checkbox w stylu aplikacji */
.custom-checkbox .form-check-input {
    background-color: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--brand-cyan);
}

.custom-checkbox .form-check-input:checked {
    background-color: var(--brand-cyan);
    border-color: var(--brand-cyan);
}

/* Podświetlenie pola kodu polecającego */
.border-cyan {
    border-color: var(--brand-cyan) !important;
    box-shadow: 0 0 8px rgba(0, 210, 255, 0.2);
}

/* Napis labeli */
.form-label {
    letter-spacing: 0.5px;
    text-transform: uppercase;
    font-size: 0.75rem;
}

/* Styl dla rozwijanego kontenera instrukcji */
.instruction-drawer-container {
    overflow: hidden;
    position: relative;
}

.drawer-body-scroll {
    max-height: 0;
    overflow-y: auto;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    scrollbar-width: thin;
    scrollbar-color: var(--brand-cyan) rgba(255, 255, 255, 0.1);
}

.drawer-body-scroll::-webkit-scrollbar {
    width: 6px;
}
.drawer-body-scroll::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}
.drawer-body-scroll::-webkit-scrollbar-thumb {
    background-color: var(--brand-cyan);
    border-radius: 20px;
}

.drawer-fade-bottom {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 40px;
    background: linear-gradient(to top, rgba(13, 22, 41, 0.8), transparent);
    pointer-events: none;
}

.img-instruction {
    width: 100%;
    max-width: 300px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    display: block;
    margin: 10px auto;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.instruction-step {
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    padding-bottom: 20px;
    margin-bottom: 20px;
}

.instruction-step h6 {
    text-align: center;
    font-weight: 800;
    color: var(--brand-cyan);
    text-transform: uppercase;
    font-size: 0.9rem;
}

#drawer-icon {
    transition: transform 0.3s ease;
}

.text-cyan {
    color: var(--brand-cyan);
}

.download-btn-animate {
    display: inline-block;
    transition: transform 0.3s ease;
    animation: pulse-cyan 2s infinite ease-in-out;
    border-radius: 13px;
}

.download-btn-animate:hover {
    transform: scale(1.05);
    animation-play-state: paused;
}

@keyframes pulse-cyan {
    0% { transform: translateY(0); box-shadow: 0 0 0 0 rgba(0, 210, 255, 0.4); }
    50% { transform: translateY(-5px); box-shadow: 0 0 20px 10px rgba(0, 210, 255, 0); }
    100% { transform: translateY(0); box-shadow: 0 0 0 0 rgba(0, 210, 255, 0); }
}

/* Styl dla przycisków priorytetu */
.glass-btn {
    background: rgba(255, 255, 255, 0.05);
    color: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(255, 255, 255, 0.1) !important;
    transition: all 0.3s ease;
}

.glass-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: #fff;
}

.btn-check:checked + .btn-outline-secondary { background-color: rgba(108, 117, 125, 0.3); color: #fff; border-color: #6c757d !important; }
.btn-check:checked + .btn-outline-primary { background-color: rgba(13, 110, 253, 0.3); color: #fff; border-color: #0d6efd !important; }
.btn-check:checked + .btn-outline-danger { background-color: rgba(220, 53, 69, 0.3); color: #fff; border-color: #dc3545 !important; }

/* DODATKOWA REGUŁA DLA MARGINESU MOBILNEGO */
@media (max-width: 991px) {
    section, .container {
        padding-left: 15px !important;
        padding-right: 15px !important;
    }
}
.bg-gradient-dark {
        background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(0,0,0,0.4) 100%);
    }
    
    .btn-cyan {
        background-color: var(--brand-cyan);
        color: #000;
        font-weight: 600;
        transition: all 0.3s;
    }

    .btn-cyan:hover {
        background-color: #fff;
        transform: translateY(-2px);
    }

    .how-it-works-section .bi {
        filter: drop-shadow(0 0 10px rgba(0, 210, 255, 0.4));
    }
    /* Efekt pływania dla kodu QR */
    @keyframes float {
        0% { transform: translatey(0px); }
        50% { transform: translatey(-20px); }
        100% { transform: translatey(0px); }
    }

    .main-screen-img {
        max-height: 55vh;
        width: auto;
        object-fit: contain;
        animation: float 6s ease-in-out infinite;
        /* Usunięto shadow-lg i rounded-4, bo teraz obrazek jest przezroczysty */
    }

    .image-glass-wrapper {
        background: radial-gradient(circle, rgba(0, 210, 255, 0.15) 0%, transparent 70%);
        padding: 40px;
        display: flex;
        justify-content: center;
        align-items: center;
    }
    #btn-back-to-top {
    position: fixed;
    bottom: 30px;
    right: 30px;
    display: none; /* Ukryty na początku */
    z-index: 9999;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    border: none;
    background: linear-gradient(135deg, #00d2ff 0%, #3a7bd5 100%); /* Twoje kolory */
    color: white;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
    opacity: 0;
    box-shadow: 0 0 15px rgba(0, 210, 255, 0.5) !important;
}

#btn-back-to-top:hover {
    transform: translateY(-5px);
    box-shadow: 0 0 25px rgba(0, 210, 255, 0.8) !important;
    background: #fff;
    color: #00d2ff;
}

/* Responsywność - mniejszy przycisk na telefonach */
@media (max-width: 768px) {
    #btn-back-to-top {
        bottom: 20px;
        right: 20px;
        width: 45px;
        height: 45px;
        font-size: 20px;
    }
}

/* KONCOWE WYGŁADZANIE PRZEWIJANIA */
footer, section:last-of-type {
    margin-bottom: 0 !important;
    padding-bottom: 50px !important; /* Daje oddech na dole bez białego tła */
}
/* Fix dla Chrome Mobile - zamalowuje przestrzeń "pod" stroną */
@media (max-width: 768px) {
    body::after {
        content: "";
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        z-index: -10;
        background: var(--dark-bg); /* Ostatnia deska ratunku - ciemna plama pod spodem */
    }
}