/* ========================================
   RESET & BASE STYLES
   ======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Paleta kolorów marszałkowskich */
    --czerwien-marszalka: #b31217;
    --bordowa: #7a0d0f;
    --bez-wojskowy: #d1bfa3;
    --oliwkowy: #756b58;
    --czern-munduru: #1f1a17;
    --biel-dokumentu: #f7f5f2;
    
    /* Typografia */
    --font-heading: 'Merriweather', serif;
    --font-body: 'Open Sans', sans-serif;
    
    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    
    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-medium: 0.3s ease;
}

body {
    font-family: var(--font-body);
    color: var(--czern-munduru);
    background-color: var(--biel-dokumentu);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

/* Tekstura papieru w tle */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg width='100' height='100' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100' height='100' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: -1;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.3;
    color: var(--bordowa);
}

a {
    color: var(--czerwien-marszalka);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--bordowa);
}

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

/* ========================================
   NAVIGATION
   ======================================== */
.navbar {
    background-color: var(--czern-munduru);
    padding: var(--spacing-sm) 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

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

.nav-brand {
    font-family: var(--font-heading);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--biel-dokumentu);
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-link {
    color: var(--bez-wojskowy);
    font-weight: 500;
    transition: color var(--transition-fast);
    padding: 0.5rem 1rem;
}

.nav-link:hover {
    color: var(--biel-dokumentu);
}

/* ========================================
   STICKY CTA (MOBILE)
   ======================================== */
.sticky-cta {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: var(--czerwien-marszalka);
    padding: var(--spacing-sm);
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.2);
    z-index: 999;
    display: none;
}

.sticky-cta .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: var(--spacing-sm);
}

.sticky-cta .price-tag {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--biel-dokumentu);
}

.sticky-cta.visible {
    display: block;
}

/* ========================================
   BUTTONS
   ======================================== */
.btn {
    display: inline-block;
    padding: 0.875rem 1.75rem;
    font-family: var(--font-body);
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    text-decoration: none;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: all var(--transition-medium);
}

.btn-primary {
    background-color: var(--czerwien-marszalka);
    color: var(--biel-dokumentu);
}

.btn-primary:hover {
    background-color: var(--bordowa);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(179, 18, 23, 0.3);
}

.btn-secondary {
    background-color: transparent;
    color: var(--czerwien-marszalka);
    border: 2px solid var(--czerwien-marszalka);
}

.btn-secondary:hover {
    background-color: var(--czerwien-marszalka);
    color: var(--biel-dokumentu);
}

.btn-large {
    padding: 1.125rem 2.25rem;
    font-size: 1.125rem;
}

.btn-small {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
}

/* ========================================
   HERO SECTION
   ======================================== */
.hero {
    background: linear-gradient(135deg, var(--oliwkowy) 0%, var(--czern-munduru) 100%);
    padding: var(--spacing-xl) 0;
    color: var(--biel-dokumentu);
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-xl);
    align-items: center;
}

.hero-text {
    animation: fadeInLeft 0.8s ease;
}

.hero-title {
    font-size: 2.5rem;
    color: var(--biel-dokumentu);
    margin-bottom: var(--spacing-sm);
    line-height: 1.2;
}

.hero-subtitle {
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--bez-wojskowy);
    margin-bottom: var(--spacing-sm);
}

.hero-author {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-md);
    color: var(--biel-dokumentu);
}

.hero-slogan {
    font-size: 1.25rem;
    font-style: italic;
    margin-bottom: var(--spacing-lg);
    color: var(--bez-wojskowy);
    border-left: 4px solid var(--czerwien-marszalka);
    padding-left: var(--spacing-md);
}

.hero-cta {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.price {
    display: flex;
    align-items: baseline;
    gap: var(--spacing-xs);
}

.price-label {
    font-size: 1rem;
    color: var(--bez-wojskowy);
}

.price-value {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--czerwien-marszalka);
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-image {
    text-align: center;
    animation: fadeInRight 0.8s ease;
}

.book-cover {
    max-width: 450px;
    width: 100%;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    border-radius: 8px;
    margin: 0 auto;
}

/* ========================================
   SECTION STYLES
   ======================================== */
section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    font-size: 2.25rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--bordowa);
    position: relative;
}

.section-title::after {
    content: '';
    display: block;
    width: 80px;
    height: 4px;
    background-color: var(--czerwien-marszalka);
    margin: var(--spacing-sm) auto 0;
}

/* ========================================
   ABOUT BOOK SECTION
   ======================================== */
.about-book {
    background-color: #fff;
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: var(--spacing-lg);
}

.blurb .lead {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--bordowa);
    margin-bottom: var(--spacing-md);
    line-height: 1.5;
}

.blurb p {
    margin-bottom: var(--spacing-md);
    text-align: justify;
}

.quote {
    background-color: var(--bez-wojskowy);
    padding: var(--spacing-md);
    border-left: 5px solid var(--czerwien-marszalka);
    margin: var(--spacing-md) 0;
    font-style: italic;
    font-size: 1.125rem;
    color: var(--czern-munduru);
}

.quote footer {
    margin-top: var(--spacing-sm);
    font-size: 0.95rem;
    font-style: normal;
    font-weight: 600;
    color: var(--bordowa);
}

.book-details {
    background-color: var(--biel-dokumentu);
    padding: var(--spacing-md);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.book-details h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    color: var(--bordowa);
}

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

.details-list li {
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid #e0e0e0;
}

.details-list li:last-child {
    border-bottom: none;
}

/* ========================================
   GALLERY SECTION
   ======================================== */
.gallery {
    background-color: var(--biel-dokumentu);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-md);
}

.gallery-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    transition: transform var(--transition-medium);
}

.gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
}

.gallery-item img {
    width: 100%;
    height: 300px;
    object-fit: cover;
    display: block;
}

.gallery-caption {
    padding: var(--spacing-sm);
    font-size: 0.875rem;
    color: var(--oliwkowy);
    text-align: center;
    background-color: #fff;
}

/* ========================================
   RECOMMENDATIONS SECTION
   ======================================== */
.recommendations {
    background-color: #fff;
}

.recommendations-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.recommendation-card {
    background-color: var(--biel-dokumentu);
    padding: var(--spacing-md);
    border-radius: 8px;
    border-left: 5px solid var(--czerwien-marszalka);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-medium);
}

.recommendation-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.recommendation-text {
    margin-bottom: var(--spacing-md);
    font-style: italic;
    color: var(--czern-munduru);
    line-height: 1.6;
}

.recommendation-author {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.recommendation-author strong {
    color: var(--bordowa);
    font-size: 1.05rem;
}

.affiliation {
    font-size: 0.9rem;
    color: var(--oliwkowy);
}

.more-recommendations {
    margin-top: var(--spacing-md);
}

#toggleRecommendations {
    display: block;
    margin: var(--spacing-md) auto 0;
}

/* ========================================
   ORDER SECTION
   ======================================== */
.order-section {
    background: linear-gradient(135deg, var(--bez-wojskowy) 0%, var(--biel-dokumentu) 100%);
}

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

.order-steps {
    margin-bottom: var(--spacing-lg);
}

.step {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    background-color: #fff;
    padding: var(--spacing-md);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.step-number {
    flex-shrink: 0;
    width: 60px;
    height: 60px;
    background-color: var(--czerwien-marszalka);
    color: var(--biel-dokumentu);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    font-weight: 700;
    font-family: var(--font-heading);
}

.step-content h3 {
    font-size: 1.375rem;
    margin-bottom: var(--spacing-sm);
    color: var(--bordowa);
}

.step-content p {
    margin-bottom: var(--spacing-xs);
}

.step-content ul {
    margin-left: var(--spacing-md);
    margin-top: var(--spacing-xs);
}

.step-content li {
    margin-bottom: 0.25rem;
}

.step-detail {
    font-size: 0.9rem;
    color: var(--oliwkowy);
    margin-top: var(--spacing-xs);
}

.email-link {
    font-weight: 600;
    text-decoration: none;
}

.order-cta {
    display: flex;
    gap: var(--spacing-md);
    justify-content: center;
    flex-wrap: wrap;
}

/* ========================================
   SHIPPING SECTION
   ======================================== */
.shipping {
    background-color: #fff;
}

.shipping-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.shipping-card {
    background-color: var(--biel-dokumentu);
    padding: var(--spacing-md);
    border-radius: 8px;
    text-align: center;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    transition: transform var(--transition-medium);
}

.shipping-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.shipping-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.shipping-card h3 {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-xs);
    color: var(--bordowa);
}

.shipping-card p {
    font-size: 0.9rem;
    color: var(--oliwkowy);
    margin-bottom: var(--spacing-sm);
}

.shipping-price {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--czerwien-marszalka);
}

.shipping-info {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.info-text {
    margin-bottom: var(--spacing-sm);
    color: var(--oliwkowy);
}

/* ========================================
   FAQ SECTION
   ======================================== */
.faq {
    background-color: var(--biel-dokumentu);
}

.faq-list {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background-color: #fff;
    border-radius: 8px;
    margin-bottom: var(--spacing-sm);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    overflow: hidden;
}

.faq-question {
    width: 100%;
    background-color: transparent;
    border: none;
    padding: var(--spacing-md);
    text-align: left;
    font-family: var(--font-heading);
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--bordowa);
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color var(--transition-fast);
}

.faq-question:hover {
    background-color: var(--biel-dokumentu);
}

.faq-icon {
    font-size: 1.5rem;
    color: var(--czerwien-marszalka);
    transition: transform var(--transition-fast);
}

.faq-item.active .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-medium);
}

.faq-item.active .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 var(--spacing-md) var(--spacing-md);
    color: var(--czern-munduru);
    line-height: 1.6;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
    background-color: var(--czern-munduru);
    color: var(--bez-wojskowy);
    padding: var(--spacing-lg) 0 var(--spacing-md);
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-lg);
}

.footer-section h3 {
    color: var(--biel-dokumentu);
    font-size: 1.25rem;
    margin-bottom: var(--spacing-md);
}

.footer-section p {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--bez-wojskowy);
    transition: color var(--transition-fast);
}

.footer-section a:hover {
    color: var(--biel-dokumentu);
}

.footer-link {
    display: inline-block;
    margin-bottom: var(--spacing-xs);
}

.footer-bottom {
    border-top: 1px solid var(--oliwkowy);
    padding-top: var(--spacing-md);
    text-align: center;
    color: var(--oliwkowy);
}

/* ========================================
   ANIMATIONS
   ======================================== */
@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ========================================
   RESPONSIVE DESIGN
   ======================================== */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        gap: var(--spacing-md);
    }
    
    .hero-image {
        order: -1;
    }
    
    .book-cover {
        max-width: 350px;
    }
    
    .about-content {
        grid-template-columns: 1fr;
    }
    
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        flex-direction: column;
        gap: var(--spacing-xs);
    }
    
    .navbar .container {
        flex-direction: column;
        gap: var(--spacing-sm);
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 1.875rem;
    }
    
    .order-cta {
        flex-direction: column;
    }
    
    .order-cta .btn {
        width: 100%;
    }
    
    .shipping-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
    }
    
    .sticky-cta.visible {
        display: block;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 2.5rem;
        --spacing-lg: 2rem;
    }
    
    .hero-title {
        font-size: 1.75rem;
    }
    
    .hero-subtitle {
        font-size: 1.125rem;
    }
    
    .price-value {
        font-size: 2rem;
    }
    
    .gallery-grid {
        grid-template-columns: 1fr;
    }
    
    .step {
        flex-direction: column;
        align-items: center;
        text-align: center;
    }
    
    .step-content ul {
        text-align: left;
    }
}

/* ========================================
   ACCESSIBILITY
   ======================================== */
.btn:focus,
.nav-link:focus,
.faq-question:focus {
    outline: 3px solid var(--czerwien-marszalka);
    outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}