:root {
    /* Paleta Korporacyjna B2B */
    --c-bg: #030712;         /* Głęboki ciemny granat/czarny (Slate 950) */
    --c-surface: #0f172a;    /* Ciemny granat na karty (Slate 900) */
    --c-surface-hover: #1e293b; /* Jaśniejszy granat (Slate 800) */
    --c-primary: #ffffff;    /* Główny tekst - czysta biel dla kontrastu */
    --c-secondary: #94a3b8;  /* Tekst poboczny (Slate 400) */
    --c-accent: #2563eb;     /* Niebieski Trust/B2B (Blue 600) */
    --c-accent-light: #3b82f6; /* Niebieski hover (Blue 500) */
    --c-allegro: #f59e0b;    /* Akcent Allegro (Amber 500) */
    --c-border: rgba(255,255,255,0.08); /* Delikatne krawędzie szklane */
    
    /* Typografia */
    --font-sans: 'Outfit', system-ui, sans-serif;
    
    /* Miary */
    --max-w: 1280px;
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    
    /* Cienie & Efekty */
    --shadow-glow: 0 0 40px rgba(37, 99, 235, 0.15);
    --shadow-card: 0 10px 30px rgba(0,0,0,0.5);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-sans);
    background-color: var(--c-bg);
    color: var(--c-secondary);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, strong {
    color: var(--c-primary);
    line-height: 1.2;
}

.container {
    max-width: var(--max-w);
    margin: 0 auto;
    padding: 0 5%;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.align-start {
    align-items: start;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 1.75rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: var(--transition);
    cursor: pointer;
    font-size: 1rem;
    border: 1px solid transparent;
}

.btn-large {
    padding: 1.125rem 2.5rem;
    font-size: 1.125rem;
}

.full-width {
    width: 100%;
}

.btn-primary {
    background: var(--c-accent);
    color: white;
    box-shadow: 0 4px 14px 0 rgba(37, 99, 235, 0.39);
}

.btn-primary:hover {
    background: var(--c-accent-light);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 99, 235, 0.23);
}

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

.btn-outline:hover {
    background: rgba(255,255,255,0.05);
    border-color: rgba(255,255,255,0.2);
}

/* ==================== NAVBAR ==================== */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(3, 7, 18, 0.85); /* rgba of --c-bg */
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--c-border);
    padding: 1.25rem 0;
    transition: var(--transition);
}

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

.logo-text {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--c-primary);
    letter-spacing: -0.5px;
}

.logo-text span {
    color: var(--c-accent);
}

.nav-links {
    display: flex;
    gap: 2.5rem;
    align-items: center;
}

.nav-links a {
    text-decoration: none;
    color: var(--c-secondary);
    font-weight: 500;
    transition: var(--transition);
    font-size: 0.95rem;
}

.nav-links a:hover, .nav-links a.btn-primary {
    color: var(--c-primary);
}

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

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--c-primary);
    transition: var(--transition);
}

/* ==================== HERO ==================== */
.hero {
    position: relative;
    padding: 11rem 0 6rem;
    min-height: 90vh;
    display: flex;
    align-items: center;
    background: url('C:/Users/amdyn/.gemini/antigravity/brain/17ebb703-78e2-40c2-8f50-e0760a4f8b16/hero_background_ads_agency_1774259338171.png') center/cover no-repeat;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(100deg, var(--c-bg) 0%, rgba(3,7,18,0.85) 50%, rgba(3,7,18,0.4) 100%);
    z-index: 1;
}

.hero-wrapper {
    position: relative;
    z-index: 2;
    display: flex;
    justify-content: flex-start;
}

.hero-content {
    max-width: 760px;
}

.trust-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 0.5rem 1rem;
    background: rgba(255,255,255,0.03);
    border: 1px solid var(--c-border);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--c-secondary);
    margin-bottom: 2rem;
}

.pulse-dot {
    width: 8px;
    height: 8px;
    background: #10b981; /* green */
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    letter-spacing: -1.5px;
    margin-bottom: 1.5rem;
}

.hero h1 span {
    background: linear-gradient(to right, var(--c-primary), var(--c-accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
}

.hero .subtitle {
    font-size: 1.25rem;
    margin-bottom: 3rem;
    max-width: 650px;
}

.hero-actions {
    display: flex;
    gap: 1rem;
    margin-bottom: 4rem;
}

.hero-stats {
    display: flex;
    gap: 3rem;
    padding-top: 2rem;
    border-top: 1px solid var(--c-border);
}

.h-stat strong {
    display: block;
    font-size: 1.75rem;
}

.h-stat span {
    font-size: 0.9rem;
    color: var(--c-secondary);
}

/* ==================== TYPOGRAPHY HELPERS ==================== */
.section-tag, .section-tag-center {
    color: var(--c-accent);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 1.5px;
    margin-bottom: 1rem;
    display: block;
}

.section-tag-center {
    text-align: center;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    letter-spacing: -1px;
    margin-bottom: 1rem;
}

.section-header p {
    font-size: 1.125rem;
    margin: 0 auto;
}

.max-w-m {
    max-width: 700px;
}

/* ==================== TRUST / LOGOS ==================== */
.trusted-by {
    padding: 3rem 0;
    background: var(--c-surface);
    border-bottom: 1px solid var(--c-border);
}

.logo-carousel {
    display: flex;
    justify-content: space-around;
    align-items: center;
    flex-wrap: wrap;
    gap: 2rem;
    opacity: 0.5;
    filter: grayscale(100%);
    transition: var(--transition);
}

.logo-carousel:hover {
    opacity: 0.8;
}

.logo-placeholder {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}

.logo-placeholder span {
    color: var(--c-primary);
    font-weight: 300;
}

/* ==================== SERVICES ADVANCED ==================== */
.services-advanced {
    padding: 8rem 0;
}

.service-feature {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6rem;
    align-items: center;
    margin-bottom: 8rem;
}

.service-feature.reverse {
    direction: rtl; /* Optyczne odwrócenie kolejności na desktopie */
}

.service-feature.reverse > * {
    direction: ltr; /* Powrót do normalnego tekstu */
}

.sf-content {
    max-width: 550px;
}

.sf-icon {
    width: 64px;
    height: 64px;
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-accent);
    margin-bottom: 1.5rem;
}

.sf-icon svg {
    width: 32px;
    height: 32px;
}

.sf-content h3 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.sf-content p {
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.check-list {
    list-style: none;
}

.check-list li {
    position: relative;
    padding-left: 2rem;
    margin-bottom: 1rem;
    color: var(--c-primary);
}

.check-list li::before {
    content: '✓';
    position: absolute;
    left: 0;
    color: var(--c-accent);
    font-weight: bold;
}

.sf-visual {
    position: relative;
}

.abstract-dashboard {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 2rem;
    height: 350px;
    display: flex;
    align-items: flex-end;
    gap: 1rem;
    box-shadow: var(--shadow-glow);
    position: relative;
    overflow: hidden;
}

.abstract-dashboard::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; height: 1px;
    background: linear-gradient(90deg, transparent, var(--c-border), transparent);
}

.ds-header {
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--c-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.ds-chart-bar {
    flex: 1;
    background: var(--c-surface-hover);
    border-radius: 4px 4px 0 0;
    position: relative;
    transform-origin: bottom;
    animation: barGrow 1.5s ease-out forwards;
}

.ds-chart-bar.highlight {
    background: var(--c-accent);
    color: white;
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding-top: 1rem;
    font-weight: bold;
    font-size: 0.8rem;
    writing-mode: tb-rl;
    transform: rotate(180deg);
}

.ds-circle {
    width: 150px;
    height: 150px;
    border-radius: 50%;
    border: 10px solid var(--c-surface-hover);
    border-top-color: var(--c-accent);
    border-right-color: var(--c-accent);
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: var(--c-primary);
    font-size: 1.25rem;
    transform: rotate(45deg);
}

.ds-circle > * {
    transform: rotate(-45deg);
}

@keyframes barGrow {
    from { transform: scaleY(0); }
    to { transform: scaleY(1); }
}

/* ==================== AUTHORITY ==================== */
.authority {
    padding: 8rem 0;
    background: var(--c-surface);
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
}

.authority h2 {
    font-size: clamp(2.5rem, 4vw, 3.5rem);
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
}

.lead-text {
    font-size: 1.25rem;
    color: var(--c-primary);
    font-weight: 500;
    margin-bottom: 1rem;
}

.cert-grid {
    display: flex;
    gap: 1rem;
    margin-top: 2rem;
}

.cert {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--c-border);
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.9rem;
    background: var(--c-bg);
}

.authority-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-box {
    background: var(--c-bg);
    padding: 2.5rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--c-border);
}

.stat-box.accent-box {
    background: linear-gradient(135deg, var(--c-surface-hover), var(--c-bg));
    border-color: rgba(37, 99, 235, 0.3);
}

.stat-box .number {
    display: block;
    font-size: 3.5rem;
    font-weight: 800;
    color: var(--c-primary);
    line-height: 1;
    margin-bottom: 0.5rem;
    letter-spacing: -2px;
}

.stat-box .label {
    font-size: 1rem;
}

/* ==================== PROCESS ==================== */
.process-section {
    padding: 8rem 0;
}

.relative-container {
    position: relative;
}

.process-steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 24px;
    right: 24px;
    height: 1px;
    background: var(--c-border);
    z-index: 1;
}

.step {
    position: relative;
    z-index: 2;
}

.step-num {
    width: 48px;
    height: 48px;
    background: var(--c-bg);
    border: 1px solid var(--c-border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    color: var(--c-accent);
    margin-bottom: 1.5rem;
}

.step h4 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
}

.step p {
    font-size: 0.95rem;
}

/* ==================== TESTIMONIALS ==================== */
.testimonials {
    padding: 8rem 0;
    background: var(--c-surface);
}

.testimonial-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
}

.testimonial-card {
    background: var(--c-bg);
    padding: 3rem;
    border-radius: var(--radius-lg);
    border: 1px solid var(--c-border);
    position: relative;
}

.quote-mark {
    font-size: 6rem;
    color: var(--c-surface-hover);
    line-height: 0;
    position: absolute;
    top: 3rem;
    left: 1.5rem;
    font-family: serif;
}

.quote {
    font-size: 1.125rem;
    color: var(--c-primary);
    position: relative;
    z-index: 2;
    margin-bottom: 2rem;
    font-style: italic;
}

.author {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--c-surface-hover);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--c-primary);
    font-weight: bold;
}

.author-info strong {
    display: block;
}

.author-info span {
    font-size: 0.85rem;
}

/* ==================== FAQ ==================== */
.faq-section {
    padding: 8rem 0;
}

.faq-intro h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.faq-intro p {
    margin-bottom: 2rem;
    font-size: 1.125rem;
}

.faq-accordion {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.faq-item {
    background: var(--c-surface);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.faq-toggle {
    display: none;
}

.faq-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    font-weight: 600;
    color: var(--c-primary);
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
}

.faq-question:hover {
    background: var(--c-surface-hover);
}

.faq-question .arrow {
    color: var(--c-accent);
    font-size: 1.5rem;
    font-weight: 300;
    transition: transform var(--transition);
}

.faq-answer {
    max-height: 0;
    padding: 0 1.5rem;
    overflow: hidden;
    transition: all 0.4s ease;
    opacity: 0;
}

.faq-toggle:checked + .faq-question {
    border-bottom: 1px solid var(--c-border);
}

.faq-toggle:checked + .faq-question .arrow {
    transform: rotate(45deg); /* Zamiana + na x */
}

.faq-toggle:checked ~ .faq-answer {
    max-height: 500px;
    padding: 1.5rem;
    opacity: 1;
}

/* ==================== CTA ADVANCED ==================== */
.cta-advanced {
    padding: 4rem 0 8rem;
}

.cta-inner {
    background: linear-gradient(135deg, var(--c-surface) 0%, #0c235c 100%);
    border: 1px solid var(--c-border);
    border-radius: var(--radius-lg);
    padding: 5rem;
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 4rem;
    align-items: center;
    box-shadow: var(--shadow-card);
}

.cta-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.cta-content p {
    font-size: 1.125rem;
    margin-bottom: 2.5rem;
}

.contact-details-grid {
    display: flex;
    gap: 3rem;
}

.cd-label {
    display: block;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.cd-item a {
    color: var(--c-primary);
    font-size: 1.25rem;
    font-weight: 700;
    text-decoration: none;
}

.cta-action {
    text-align: center;
}

.guarantee {
    font-size: 0.85rem;
    margin-top: 1rem;
    color: #cbd5e1;
}

/* ==================== FOOTER CORP ==================== */
.footer-corp {
    background: #02040a;
    border-top: 1px solid var(--c-border);
    padding: 5rem 0 2rem;
}

.footer-grid-advanced {
    display: grid;
    grid-template-columns: 2fr 1fr 1.5fr;
    gap: 4rem;
    margin-bottom: 4rem;
}

.footer-corp h4 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.fc-brand p {
    margin-top: 1rem;
    max-width: 400px;
}

.fc-links {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.fc-links a {
    color: var(--c-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.fc-links a:hover {
    color: var(--c-accent);
}

.fc-info p {
    margin-bottom: 0.5rem;
}

.legal-numbers {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    margin-top: 1rem;
    font-size: 0.85rem;
    opacity: 0.7;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 2rem;
    border-top: 1px solid var(--c-border);
    font-size: 0.85rem;
}

.policy-links {
    display: flex;
    gap: 1.5rem;
}

.policy-links a {
    color: var(--c-secondary);
    text-decoration: none;
}

.policy-links a:hover {
    color: var(--c-primary);
}

/* ==================== ANIMATIONS / REVEAL ==================== */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.5, 0, 0, 1);
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}

/* ==================== RESPONSIVE ==================== */
@media (max-width: 1024px) {
    .grid-2 {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .process-steps {
        grid-template-columns: 1fr 1fr;
    }
    
    .process-steps::before {
        display: none;
    }
    
    .cta-inner {
        grid-template-columns: 1fr;
        padding: 3rem;
    }
    
    .footer-grid-advanced {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        background: var(--c-surface);
        padding: 2rem;
        flex-direction: column;
        border-bottom: 1px solid var(--c-border);
    }
    
    .nav-links.show {
        display: flex;
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .service-feature, .service-feature.reverse {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .hero {
        text-align: center;
        padding: 8rem 0 4rem;
    }
    
    .hero-wrapper {
        justify-content: center;
    }
    
    .hero-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 1.5rem;
        align-items: center;
    }
    
    .testimonial-grid {
        grid-template-columns: 1fr;
    }
    
    .process-steps {
        grid-template-columns: 1fr;
    }
    
    .footer-grid-advanced {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}