/* ========================================
   BPX Demo - Global Styles
   ======================================== */

/* Dostępność: skip link */
.skip-link {
    position: absolute;
    top: -40px;
    left: 0;
    background: var(--color-primary);
    color: #fff;
    padding: 8px 16px;
    z-index: 10000;
    text-decoration: none;
    font-weight: 600;
    border-radius: 0 0 var(--radius) 0;
    transition: top 0.3s;
}

.skip-link:focus {
    top: 0;
}

/* Tekst tylko dla czytników ekranu */
.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;
}

:root {
    --color-primary: #003366;
    --color-primary-dark: #002244;
    --color-accent: #0077cc;
    --color-accent-light: #3399ff;
    --color-bg: #ffffff;
    --color-bg-alt: #f4f6f8;
    --color-text: #1a1a1a;
    --color-text-muted: #555555;
    --color-border: #e0e0e0;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --radius: 8px;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --transition: 0.3s ease;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-main);
    color: var(--color-text);
    line-height: 1.6;
    background: var(--color-bg);
}

.container {
    width: 90%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 15px;
}

/* ========================================
   Navigation
   ======================================== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--color-border);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--color-primary);
    text-decoration: none;
    letter-spacing: -1px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--color-text);
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
}

.nav-menu a:hover {
    color: var(--color-accent);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-accent);
    transition: var(--transition);
}

.nav-menu a:hover::after {
    width: 100%;
}

.nav-cta {
    border: 1px solid var(--color-primary);
    padding: 0.3rem 0.8rem;
    border-radius: var(--radius);
    font-size: 0.85rem !important;
}

.nav-cta:hover {
    background: var(--color-primary);
    color: #fff !important;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 5px;
}

.nav-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 2px;
    transition: var(--transition);
}

/* ========================================
   Hero
   ======================================== */
.hero {
    padding: 160px 0 100px;
    text-align: center;
    background: linear-gradient(135deg, #f0f4f8 0%, #ffffff 100%);
}

.hero h1 {
    font-size: clamp(2rem, 5vw, 3.2rem);
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
    max-width: 900px;
    margin: 0 auto 1.5rem;
}

.hero-subtitle {
    font-size: clamp(1rem, 2vw, 1.25rem);
    color: var(--color-text-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   Focus indicators (dostępność)
   ======================================== */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

/* ========================================
   Buttons
   ======================================== */
.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
}

.btn-primary:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.btn-secondary {
    background: transparent;
    color: var(--color-primary);
    border-color: var(--color-primary);
}

.btn-secondary:hover {
    background: var(--color-primary);
    color: #fff;
}

.btn-full {
    width: 100%;
}

/* ========================================
   Partners
   ======================================== */
.partners {
    padding: 60px 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
}

.section-label {
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: 2rem;
}

.partners-grid {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 2.5rem;
}

.partner-logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--color-border);
    transition: var(--transition);
    user-select: none;
}

.partner-logo:hover {
    color: var(--color-primary);
}

/* ========================================
   Stats
   ======================================== */
.stats {
    padding: 80px 0;
    background: var(--color-bg-alt);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item {
    padding: 1.5rem;
}

.stat-number {
    display: block;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1rem;
    color: var(--color-text-muted);
}

/* ========================================
   Offer
   ======================================== */
.offer {
    padding: 100px 0;
    background: var(--color-bg);
}

.section-title {
    text-align: center;
    font-size: clamp(1.8rem, 4vw, 2.5rem);
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.section-subtitle {
    text-align: center;
    color: var(--color-text-muted);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

.offer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.offer-card {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 2.5rem 2rem;
    transition: var(--transition);
}

.offer-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
    border-color: var(--color-accent-light);
}

.offer-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    color: var(--color-accent);
}

.offer-card h3 {
    font-size: 1.4rem;
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.offer-card p {
    color: var(--color-text-muted);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

.link-arrow {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
}

.link-arrow:hover {
    color: var(--color-primary);
}

/* ========================================
   Industries
   ======================================== */
.industries {
    padding: 100px 0;
    background: var(--color-bg-alt);
}

.industries-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.industry-card {
    background: var(--color-bg);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--color-border);
    transition: var(--transition);
}

.industry-card:hover {
    border-color: var(--color-accent);
    box-shadow: var(--shadow);
}

.industry-card h3 {
    color: var(--color-primary);
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
}

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

/* ========================================
   Contact
   ======================================== */
.contact {
    padding: 100px 0;
    background: var(--color-bg);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--color-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.85rem 1rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
    background: var(--color-bg);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(0,119,204,0.1);
}

.contact-info {
    padding-top: 0.5rem;
}

.contact-info h3 {
    font-size: 1.6rem;
    color: var(--color-primary);
    margin-bottom: 1.5rem;
}

.contact-info p {
    margin-bottom: 1.2rem;
    color: var(--color-text-muted);
    line-height: 1.5;
}

.contact-info a {
    color: var(--color-accent);
    text-decoration: none;
}

.contact-info a:hover {
    text-decoration: underline;
}

.form-status {
    min-height: 1.5em;
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.contact-offices {
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--color-border);
}

/* ========================================
   Footer
   ======================================== */
.footer {
    background: var(--color-primary);
    color: #fff;
    padding: 60px 0 20px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.footer-col h4 {
    font-size: 1.1rem;
    margin-bottom: 1.2rem;
    font-weight: 600;
}

.footer-col ul {
    list-style: none;
}

.footer-col li {
    margin-bottom: 0.6rem;
}

.footer-col a {
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    font-size: 0.95rem;
    transition: var(--transition);
}

.footer-col a:hover {
    color: #fff;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.15);
    padding-top: 1.5rem;
    text-align: center;
    font-size: 0.85rem;
    color: rgba(255,255,255,0.5);
}

.footer-bottom a {
    color: rgba(255,255,255,0.6);
    text-decoration: none;
}

.footer-bottom a:hover {
    color: #fff;
}

/* ========================================
   Chatbot placeholder
   ======================================== */

.chatbot-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
}

.chatbot-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: var(--color-accent);
    color: #fff;
    border: none;
    font-size: 1.8rem;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.chatbot-toggle:hover {
    background: var(--color-primary);
    transform: scale(1.1);
}

.chatbot-live-region {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

/* ========================================
   Scroll animations
   ======================================== */
.fade-in {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        right: -100%;
        width: 70%;
        max-width: 300px;
        height: calc(100vh - 70px);
        background: #fff;
        flex-direction: column;
        align-items: flex-start;
        padding: 2rem;
        gap: 1.5rem;
        box-shadow: -4px 0 20px rgba(0,0,0,0.1);
        transition: var(--transition);
        border-left: 1px solid var(--color-border);
    }

    .nav-menu.active {
        right: 0;
    }

    .hero {
        padding: 130px 0 80px;
    }

    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .partners-grid {
        gap: 1.5rem;
    }

    .partner-logo {
        font-size: 1.1rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .stat-number {
        font-size: 2.2rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }

    .offer-grid,
    .industries-grid {
        grid-template-columns: 1fr;
    }
}