:root {
    --bg-color: #000000;
    --card-bg: #111111;
    --accent-color: #2ecc71;
    --text-main: #ffffff;
    --text-muted: #b3b3b3;
    --border-color: #1c1c1c;
}

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

body { 
    background-color: var(--bg-color); 
    color: var(--text-main); 
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif; 
    line-height: 1.6; 
    padding: 0 20px; 
}

.container { max-width: 900px; margin: 0 auto; padding: 60px 0; }

header { 
    margin-bottom: 60px; 
    border-bottom: 1px solid var(--border-color); 
    padding-bottom: 20px; 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
}

.logo-container { display: flex; flex-direction: column; gap: 12px; }

.brand-logo { 
    height: 120px; 
    width: 130px; 
    object-fit: contain; 
    display: block; 
    margin-top: -20px; 
    margin-bottom: -20px; 
    background: transparent; 
    border: none; 
    filter: drop-shadow(0px 0px 15px rgba(46, 204, 113, 0.25)); 
}

.logo-text { font-size: 1.8rem; font-weight: 700; letter-spacing: 1px; }
.logo-text span { color: var(--accent-color); }
.tagline { color: var(--text-muted); font-size: 0.9rem; }
.lang-switch { display: flex; gap: 10px; }

.lang-btn { 
    background: transparent; 
    border: 1px solid var(--border-color); 
    color: var(--text-muted); 
    padding: 5px 12px; 
    border-radius: 4px; 
    cursor: pointer; 
    font-weight: 600; 
    font-size: 0.85rem; 
    transition: all 0.2s; 
}

.lang-btn:hover, .lang-btn.active { 
    border-color: var(--accent-color); 
    color: var(--text-main); 
    background-color: rgba(46, 204, 113, 0.1); 
}

.hero { margin-bottom: 60px; }
h1 { font-size: 2.5rem; margin-bottom: 20px; font-weight: 800; }
.highlight { color: var(--accent-color); }
.hero-p { color: var(--text-muted); font-size: 1.1rem; max-width: 750px; }

.story-box { 
    background-color: var(--card-bg); 
    border: 1px solid var(--border-color); 
    border-left: 4px solid var(--accent-color); 
    padding: 25px; 
    border-radius: 6px; 
    margin-bottom: 30px; 
}

.story-box h2 { 
    margin-bottom: 12px; 
    font-size: 1.2rem; 
    display: flex; 
    align-items: center; 
    gap: 10px; 
    color: var(--text-main); 
}

.story-p { color: var(--text-muted); font-size: 0.95rem; }

.product-box { 
    background-color: #0d1f16; 
    border: 1px solid rgba(46, 204, 113, 0.2); 
    padding: 30px; 
    border-radius: 8px; 
    margin-bottom: 50px; 
    display: flex; 
    flex-direction: column; 
    gap: 15px; 
}

.product-box h2 { font-size: 1.4rem; color: var(--text-main); display: flex; align-items: center; gap: 10px; }
.product-box p { color: #d1d5db; font-size: 0.95rem; }

.btn-app { 
    display: inline-block; 
    align-self: flex-start; 
    background-color: var(--accent-color); 
    color: #121212; 
    text-decoration: none; 
    padding: 10px 20px; 
    border-radius: 4px; 
    font-weight: 700; 
    font-size: 0.9rem; 
    transition: background-color 0.2s, transform 0.2s; 
}

.btn-app:hover { background-color: #27ae60; transform: translateY(-1px); }
.services-title { font-size: 1.8rem; margin-bottom: 30px; }
.grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 20px; margin-bottom: 60px; }

.card { 
    background-color: var(--card-bg); 
    border: 1px solid var(--border-color); 
    padding: 30px; 
    border-radius: 8px; 
    transition: transform 0.2s, border-color 0.2s; 
}

.card:hover { border-color: var(--accent-color); transform: translateY(-2px); }
.card h3 { font-size: 1.3rem; margin-bottom: 15px; color: var(--text-main); }
.card p { color: var(--text-muted); font-size: 0.95rem; }

/* STOPKA I PRZYCISKI KONTAKTOWE */
footer { border-top: 1px solid var(--border-color); padding-top: 40px; text-align: center; margin-bottom: 40px; }
.footer-p { color: var(--text-muted); margin-bottom: 25px; font-size: 1.05rem; }

.contact-actions { display: flex; justify-content: center; gap: 15px; flex-wrap: wrap; margin-bottom: 30px; }

/* Wspólny styl dla przycisków kontaktowych */
.btn-contact { 
    display: flex; 
    align-items: center; 
    text-decoration: none; 
    padding: 12px 24px; 
    font-weight: 700; 
    border-radius: 30px; 
    transition: all 0.2s ease; 
    font-size: 0.9rem; 
}
.btn-contact .icon { margin-right: 8px; font-size: 1.1rem; }

/* Przycisk Mail */
.mail-btn { background-color: var(--accent-color); color: #000000; border: 2px solid var(--accent-color); }
.mail-btn:hover { background-color: #27ae60; border-color: #27ae60; transform: translateY(-2px); }

/* Przycisk LinkedIn */
.linkedin-btn { background-color: var(--card-bg); color: #ffffff; border: 2px solid var(--border-color); }
.linkedin-btn:hover { border-color: var(--accent-color); color: var(--accent-color); transform: translateY(-2px); }

/* Przycisk vCard */
.vcard-btn { background-color: transparent; color: #ffffff; border: 2px solid var(--border-color); }
.vcard-btn:hover { background-color: rgba(46, 204, 113, 0.1); border-color: var(--accent-color); color: var(--accent-color); transform: translateY(-2px); }

/* Linki tekstowe na samym dole */
.social-links { margin-bottom: 30px; font-size: 0.95rem; }
.social-link { 
    color: #e0e0e0; 
    text-decoration: underline; 
    text-underline-offset: 4px;
    transition: color 0.2s; 
    font-weight: 600; 
}
.social-link:hover { color: var(--accent-color); }
.divider { color: var(--border-color); margin: 0 10px; }

.footer-credits { margin-top: 40px; font-size: 0.8rem; color: var(--text-muted); }
.hidden { display: none !important; }
.footer-note { font-size: 0.75rem; color: #444; }

/* [NOWOSC] Bezpieczne wymuszenie wyswietlania wizytówki w zgodzie z CSP */
.vcard-visible { 
    display: inline-flex !important; 
}

/* RESPONSYWNOSC MOBILNA */
@media (max-width: 740px) { 
    h1 { font-size: 2rem; } 
    .container { padding: 30px 0; } 
    header { flex-direction: column; align-items: flex-start; gap: 15px; } 
    .btn-app { align-self: stretch; text-align: center; } 
    .contact-actions { flex-direction: column; align-items: stretch; }
    .btn-contact { justify-content: center; }
}