/* Reset & Base */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary: #0f172a;
    --primary-dark: #020617;
    --accent: #d97706;
    --accent-hover: #b45309;
    --bg: #f8fafc;
    --text-main: #334155;
    --text-muted: #64748b;
    --white: #ffffff;
    --border: #e2e8f0;
    --radius: 0.75rem;
    --shadow-sm: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -2px rgb(0 0 0 / 0.1);
}

body {
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
    background-color: var(--bg);
    color: var(--text-main);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.2s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Layout */
.container {
    width: 100%;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header */
.site-header {
    background-color: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    transition: transform 0.3s ease;
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 5rem;
}

.brand {
    font-weight: 800;
    font-size: 1.5rem;
    color: var(--primary);
    display: flex;
    flex-direction: column;
    line-height: 1;
    letter-spacing: -0.025em;
}

.tagline {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-weight: 500;
    margin-top: 0.25rem;
    letter-spacing: 0;
}

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

.nav-link {
    font-weight: 600;
    color: var(--text-main);
    font-size: 0.95rem;
    position: relative;
}

.nav-link:hover, .nav-link.active {
    color: var(--accent);
}

.nav-link::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: -4px;
    left: 0;
    background-color: var(--accent);
    transition: width 0.3s;
}

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

.header-cta {
    background-color: var(--primary);
    color: var(--white);
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius);
    font-weight: 600;
    font-size: 0.9rem;
}

.header-cta:hover {
    background-color: var(--primary-dark);
    transform: translateY(-1px);
}

/* Mobile Nav Toggle */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary);
    cursor: pointer;
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }
    .nav-menu {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-lg);
        gap: 1.5rem;
    }
    .nav-menu.open {
        display: flex;
    }
    .header-cta {
        width: 100%;
        text-align: center;
    }
}

/* Hero Section */
.hero {
    position: relative;
    background-color: var(--primary);
    color: var(--white);
    padding: 8rem 0 6rem;
    text-align: center;
    overflow: hidden;
    display: flex;
    align-items: center;
    min-height: 70vh;
}

.hero-bg {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background-size: cover;
    background-position: center;
    opacity: 0.4;
    filter: saturate(0);
    transition: transform 10s ease;
}

.hero:hover .hero-bg {
    transform: scale(1.05);
}

.hero-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.95));
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.1;
    letter-spacing: -0.025em;
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.hero p {
    font-size: clamp(1.1rem, 2vw, 1.35rem);
    color: #cbd5e1;
    margin-bottom: 3rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
}

.btn-group {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1rem 2rem;
    border-radius: 9999px; /* Pill shape */
    font-weight: 600;
    font-size: 1.05rem;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, #ea580c 100%);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(217, 119, 6, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(217, 119, 6, 0.5);
    filter: brightness(1.1);
}

.btn-outline {
    background: transparent;
    border: 2px solid rgba(255,255,255,0.3);
    color: var(--white);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
}

/* Sections */
.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    max-width: 800px;
    margin: 0 auto 4rem;
}

.section-label {
    color: var(--accent);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    display: block;
    margin-bottom: 0.5rem;
}

.section-title {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: 1.25rem;
    letter-spacing: -0.025em;
}

.section-desc {
    color: var(--text-muted);
    font-size: 1.2rem;
    line-height: 1.7;
}

/* Cards */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
}

.feature-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 2.5rem;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 4px;
    background: var(--accent);
    transition: height 0.3s ease;
    z-index: -1;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
    height: 100%;
    opacity: 0.03;
}

.card-icon-wrapper {
    width: 4rem;
    height: 4rem;
    background: linear-gradient(135deg, #fff7ed 0%, #ffedd5 100%);
    color: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 1rem;
    margin-bottom: 1.5rem;
    font-size: 1.75rem;
}

.feature-card h3 {
    font-size: 1.5rem;
    color: var(--primary);
    margin-bottom: 1rem;
    font-weight: 700;
}

.feature-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.link-arrow {
    color: var(--accent);
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.link-arrow:hover {
    gap: 0.75rem;
}

/* Image Break Section */
.image-break {
    position: relative;
    height: 400px;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
}

.image-break-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
}

.image-break-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
    padding: 2rem;
}

/* Blog Preview */
.post-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.post-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}

.post-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.post-image-wrapper {
    position: relative;
    padding-top: 60%; /* 16:9 Aspect Ratio */
    overflow: hidden;
}

.post-image {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.post-card:hover .post-image {
    transform: scale(1.05);
}

.post-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.post-date {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 600;
    text-transform: uppercase;
    margin-bottom: 0.75rem;
    letter-spacing: 0.05em;
}

.post-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 1rem;
    line-height: 1.3;
}

.post-excerpt {
    color: var(--text-muted);
    font-size: 1rem;
    margin-bottom: 1.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    flex-grow: 1;
}

/* FAQ Section */
.faq-item {
    background-color: var(--white);
    border: 1px solid transparent; /* Transparent by default */
    border-radius: var(--radius);
    margin-bottom: 1rem;
    overflow: hidden;
    transition: all 0.3s ease;
    box-shadow: 0 2px 10px rgba(0,0,0,0.03); /* Subtelny cień zamiast borderu */
}

.faq-item:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}

.faq-item[open] {
    border-color: var(--accent); /* Bursztynowa ramka po otwarciu */
    box-shadow: 0 4px 20px rgba(217, 119, 6, 0.1);
}

.faq-question {
    padding: 1.5rem;
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--primary);
    cursor: pointer;
    position: relative;
    list-style: none;
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--white);
}

.faq-question::-webkit-details-marker {
    display: none;
}

.faq-question::after {
    content: '+';
    font-size: 1.75rem;
    color: var(--accent);
    font-weight: 300;
    line-height: 1;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    margin-left: 1rem;
}

details[open] .faq-question::after {
    transform: rotate(45deg);
}

.faq-answer {
    padding: 0 1.5rem 1.5rem;
    color: var(--text-muted);
    line-height: 1.7;
    background-color: var(--white);
    animation: slideDown 0.3s ease-out forwards;
}

@keyframes slideDown {
    from { 
        opacity: 0; 
        transform: translateY(-10px); 
    }
    to { 
        opacity: 1; 
        transform: translateY(0); 
    }
}

/* Footer */
.site-footer {
    background-color: var(--primary);
    color: #94a3b8;
    padding: 5rem 0 2rem;
    margin-top: auto;
}

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

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
    }
}

.footer-brand {
    color: var(--white);
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    display: inline-block;
}

.footer-title {
    color: var(--white);
    font-weight: 600;
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
    display: block;
}

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    transition: color 0.2s;
}

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

.copyright {
    border-top: 1px solid rgba(255,255,255,0.1);
    padding-top: 2rem;
    text-align: center;
    font-size: 0.9rem;
}

/* Post Page Styles */
.post-hero {
    background-color: var(--primary);
    color: var(--white);
    padding: 6rem 0 8rem;
    position: relative;
    text-align: center;
    margin-bottom: 2rem;
}

.post-hero-content {
    max-width: 900px;
    margin: 0 auto;
}

.post-meta {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.post-date {
    color: var(--accent);
}

.post-category {
    color: rgba(255, 255, 255, 0.7);
}

.post-title-hero {
    font-size: clamp(2rem, 4vw, 3.5rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.post-lead {
    font-size: 1.25rem;
    color: #cbd5e1;
    max-width: 750px;
    margin: 0 auto;
    line-height: 1.6;
}

.post-wrapper {
    position: relative;
    z-index: 10;
    margin-top: -4rem; /* Overlap hero */
    max-width: 1000px; /* constrain width */
    margin-left: auto;
    margin-right: auto;
    padding: 0 1.5rem;
}

.post-featured-image {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    margin-bottom: 3rem;
    background: var(--white);
}

.post-featured-image img {
    width: 100%;
    height: auto;
    max-height: 500px;
    object-fit: cover;
    display: block;
}

.post-body {
    background: var(--white);
    padding: 3rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    margin-bottom: 4rem;
}

@media (max-width: 768px) {
    .post-body {
        padding: 1.5rem;
    }
    .post-hero {
        padding: 4rem 0 6rem;
    }
}

/* Article Content Typography */
.article-content {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-main);
}

.article-content h2 {
    font-size: 1.8rem;
    color: var(--primary);
    margin-top: 2.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}

.article-content h3 {
    font-size: 1.4rem;
    color: var(--primary);
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.article-content p {
    margin-bottom: 1.5rem;
}

.article-content ul, .article-content ol {
    margin-bottom: 1.5rem;
    padding-left: 1.5rem;
}

.article-content li {
    margin-bottom: 0.5rem;
}

.article-content blockquote {
    border-left: 4px solid var(--accent);
    margin: 2rem 0;
    font-style: italic;
    color: var(--text-muted);
    background: #fff7ed; /* Light orange bg */
    padding: 1.5rem;
    border-radius: 0 var(--radius) var(--radius) 0;
}

/* Dark Section for CTA */
.section-dark {
    background-color: var(--primary);
    color: var(--white);
}