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

:root {
    --color-brand-dark: #020617;
    --color-brand-surface: #0b1120;
    --color-brand-accent: #f97316;
    --color-brand-text: #f8fafc;
    --color-brand-muted: #94a3b8;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--color-brand-dark);
    color: var(--color-brand-text);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--color-brand-dark);
}

::-webkit-scrollbar-thumb {
    background: var(--color-brand-surface);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-brand-accent);
}

::selection {
    background-color: var(--color-brand-accent);
    color: #fff;
}

/* Utility Classes */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.container-narrow {
    max-width: 896px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

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

.icon {
    color: var(--color-brand-accent);
}

.icon-sm {
    width: 20px;
    height: 20px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background-color: rgba(2, 6, 23, 0.6);
    backdrop-filter: blur(24px);
    transition: all 0.5s ease;
    padding: 0;
}

.nav.scrolled {
    background-color: rgba(2, 6, 23, 0.85);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.3);
}

.nav-container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 1.5rem;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    letter-spacing: -0.025em;
}

.nav-links {
    display: none;
    align-items: center;
    gap: 2rem;
    font-size: 0.875rem;
    font-weight: 500;
    color: #d1d5db;
}

.nav-links a {
    text-decoration: none;
    color: #d1d5db;
    transition: color 0.3s;
    position: relative;
}

.nav-links a:not(.btn-primary)::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    right: 0;
    height: 2px;
    background-color: var(--color-brand-accent);
    border-radius: 1px;
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

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

.nav-links a.nav-active {
    color: #ffffff;
    position: relative;
}

.nav-links a.nav-active::after {
    transform: scaleX(1);
}

.btn-primary {
    background-color: var(--color-brand-accent);
    color: white;
    padding: 0.625rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    box-shadow: 0 10px 15px -3px rgba(249, 115, 22, 0.2);
    transition: all 0.3s;
}

.btn-primary:hover {
    background-color: white;
    color: black;
}

.menu-toggle {
    display: block;
    background: none;
    border: none;
    color: white;
    cursor: pointer;
    padding: 0.5rem;
}

.hamburger {
    display: block;
    width: 24px;
    height: 2px;
    background-color: white;
    position: relative;
    transition: all 0.3s;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: white;
    transition: all 0.3s;
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    top: 8px;
}

.menu-toggle.active .hamburger {
    background-color: transparent;
}

.menu-toggle.active .hamburger::before {
    transform: rotate(45deg);
    top: 0;
}

.menu-toggle.active .hamburger::after {
    transform: rotate(-45deg);
    top: 0;
}

.mobile-menu {
    display: none;
    background-color: var(--color-brand-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 1.5rem;
    flex-direction: column;
    gap: 1rem;
}

.mobile-menu.active {
    display: flex;
}

.mobile-menu a {
    text-decoration: none;
    color: #d1d5db;
    transition: color 0.3s;
}

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

/* Hero Section */
.hero {
    position: relative;
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
    transition: opacity 0.1s ease-out;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--color-brand-dark) 0%, rgba(2, 6, 23, 0.8) 30%, rgba(2, 6, 23, 0.3) 50%, transparent 70%);
}

.hero-overlay::after {
    content: '';
    position: absolute;
    inset: 0;
    background: none;
}

.hero-content {
    position: relative;
    z-index: 10;
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: flex-start;
    width: 100%;
}

.hero-text {
    padding-top: 2.5rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: rgba(11, 17, 32, 0.8);
    backdrop-filter: blur(4px);
    padding: 0.375rem 1rem;
    border-radius: 9999px;
    border: 1px solid rgba(249, 115, 22, 0.3);
    margin-bottom: 2rem;
}

.badge-dot {
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 9999px;
    background-color: var(--color-brand-accent);
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.badge span:last-child {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-brand-accent);
}

.hero-title {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1.1;
    color: white;
    margin-bottom: 2rem;
}

.gradient-text {
    background: linear-gradient(to right, var(--color-brand-accent), white);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.125rem;
    color: white;
    max-width: 32rem;
    line-height: 1.75;
    border-left: 4px solid var(--color-brand-accent);
    padding-left: 1.5rem;
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 1rem;
}

.btn-hero-primary {
    background-color: var(--color-brand-accent);
    color: white;
    padding: 1rem 2rem;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 1.125rem;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: 0 0 20px rgba(249, 115, 22, 0.3);
}

.btn-hero-primary:hover {
    background-color: white;
    color: black;
    transform: translateY(-4px);
}

.btn-hero-secondary {
    padding: 1rem 2rem;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 1.125rem;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: white;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: all 0.3s;
}

.btn-hero-secondary:hover {
    background-color: rgba(255, 255, 255, 0.05);
}

/* Book Mockup */
.book-mockup {
    display: none;
    justify-content: flex-end;
    align-items: center;
    position: relative;
}

.book-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    background-color: rgba(249, 115, 22, 0.1);
    border-radius: 50%;
    filter: blur(80px);
    transition: background-color 0.7s;
}

.book-card:hover .book-glow {
    background-color: rgba(249, 115, 22, 0.2);
}

.book-card {
    position: relative;
    width: 400px;
    background-color: #18181b;
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 0.5rem;
    border-radius: 0 2rem 2rem 0;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    transform-style: preserve-3d;
    transition: transform 0.7s;
    transform-origin: left;
}

.book-card:hover {
    transform: rotateY(0deg);
}

.book-cover {
    aspect-ratio: 2 / 3;
    background: linear-gradient(to bottom right, #0f172a, #1e293b);
    border-radius: 0 1.5rem 1.5rem 0;
    overflow: hidden;
    position: relative;
    border-left: 1px solid rgba(255, 255, 255, 0.05);
}

.book-content {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 2rem;
}

.book-author {
    color: rgba(255, 255, 255, 0.8);
    font-size: 1.125rem;
    font-weight: 500;
    letter-spacing: 0.025em;
    margin-bottom: 0.5rem;
}

.book-title {
    font-size: 3rem;
    font-weight: 800;
    color: white;
    line-height: 1;
    text-transform: uppercase;
    letter-spacing: -0.025em;
}

.book-title .accent {
    color: var(--color-brand-accent);
}

.book-pattern {
    position: absolute;
    inset: 0;
    top: 8rem;
    opacity: 0.6;
    mix-blend-mode: screen;
    pointer-events: none;
}

.book-pattern svg {
    width: 100%;
    height: 100%;
    fill: rgba(249, 115, 22, 0.1);
    stroke: var(--color-brand-accent);
    stroke-width: 0.5;
}

.book-footer {
    position: relative;
    z-index: 10;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    padding: 1rem;
    border-left: 4px solid var(--color-brand-accent);
}

.book-subtitle-accent {
    color: var(--color-brand-accent);
    font-weight: 700;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.1em;
}

.book-subtitle-text {
    color: white;
    font-size: 0.75rem;
    margin-top: 0.25rem;
}

/* About Section */
.about-section {
    padding: 6rem 0;
    background-color: var(--color-brand-dark);
    position: relative;
}

.section-badge {
    display: inline-block;
    padding: 0.25rem 1rem;
    border-radius: 9999px;
    background-color: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.75rem;
    font-weight: 500;
    color: #9ca3af;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

/* Consistent over-header style for all sections */
.section-over-header {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-brand-accent);
    font-size: 0.875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1rem;
    background-color: rgba(11, 17, 32, 0.8);
    backdrop-filter: blur(4px);
    padding: 0.375rem 1rem;
    border-radius: 9999px;
    border: 1px solid rgba(249, 115, 22, 0.3);
}

.section-over-header svg {
    color: var(--color-brand-accent);
}

.section-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 2rem;
    line-height: 1.3;
}

.section-subtitle {
    font-size: 1rem;
    color: #9ca3af;
    margin-top: -1rem;
    margin-bottom: 2rem;
    line-height: 1.6;
}

.highlight-text {
    position: relative;
    display: inline-block;
    padding: 0 0.5rem;
    color: var(--color-brand-accent);
}

.highlight-text::before {
    content: '';
    position: absolute;
    inset: 0;
    background-color: rgba(249, 115, 22, 0.2);
    transform: skewX(-12deg);
}

.section-description {
    font-size: 1.25rem;
    color: #9ca3af;
    line-height: 1.75;
}

/* Table of Contents Section */
.toc-section {
    padding: 6rem 0;
    background-color: rgba(11, 17, 32, 0.3);
}

.toc-header {
    margin-bottom: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.toc-timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

/* Pionowa linia na środku - tylko desktop */
.toc-timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--color-brand-accent), rgba(249, 115, 22, 0.1));
    transform: translateX(-50%);
    display: none;
}

.toc-stop {
    display: grid;
    grid-template-columns: 48px 1fr;
    gap: 1.5rem;
    position: relative;
}

.toc-stop-marker {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.toc-stop-number {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background-color: var(--color-brand-accent);
    color: #fff;
    font-size: 1rem;
    font-weight: 800;
    flex-shrink: 0;
    position: relative;
    z-index: 2;
}

.toc-stop-line {
    width: 2px;
    flex: 1;
    background: linear-gradient(to bottom, var(--color-brand-accent), rgba(249, 115, 22, 0.15));
}

.toc-stop-content {
    padding-bottom: 2rem;
    background-color: var(--color-brand-surface);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1.5rem;
    padding: 1.5rem 2rem 2rem;
    transition: border-color 0.3s;
}

.toc-stop-content:hover {
    border-color: rgba(249, 115, 22, 0.3);
}

.toc-stop-last .toc-stop-content {
    padding-bottom: 2rem;
}

.toc-stop-title {
    color: var(--color-brand-text);
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    line-height: 48px;
}

.toc-stop-desc {
    color: var(--color-brand-muted);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

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

.toc-group {
    background-color: var(--color-brand-surface);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1.5rem;
    padding: 2rem;
    transition: border-color 0.3s;
}

.toc-group:hover {
    border-color: rgba(249, 115, 22, 0.3);
}

.toc-group-title {
    color: var(--color-brand-accent);
    font-size: 1rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 1.25rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid rgba(249, 115, 22, 0.2);
}

.toc-list {
    list-style: decimal;
    padding: 0 0 0 2rem;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.toc-list li {
    color: #d1d5db;
    font-size: 0.9rem;
    line-height: 1.5;
    padding-left: 0.5rem;
}

.toc-list li::marker {
    color: var(--color-brand-accent);
    font-weight: 700;
}

/* Author Section */
.author-section {
    padding: 3rem 0;
    background-color: rgba(11, 17, 32, 0.3);
}

.author-card {
    background-color: var(--color-brand-surface);
    border-radius: 3rem;
    overflow: hidden;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.author-pattern {
    position: absolute;
    top: 0;
    right: 0;
    width: 100%;
    height: 100%;
    opacity: 0.05;
    pointer-events: none;
    background-image: url("data:image/svg+xml,%3Csvg width='40' height='40' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M40 0L0 0 0 40' fill='none' stroke='white' stroke-width='0.5'/%3E%3C/svg%3E");
}

.author-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    align-items: center;
    padding: 2rem;
    position: relative;
    z-index: 10;
}

.section-tag {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-brand-accent);
    margin-bottom: 2rem;
}

.section-tag span {
    font-weight: 700;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-size: 0.875rem;
}

.author-name {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 2rem;
}

.author-bio {
    color: #d1d5db;
    font-size: 1.125rem;
    line-height: 1.75;
    margin-bottom: 2rem;
}

.author-bio p {
    margin-bottom: 1rem;
}

.author-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    grid-column: 1 / -1;
    padding-top: 2rem;
    margin-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.author-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    color: #d1d5db;
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.75rem 1.25rem;
    border-radius: 0.75rem;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    transition: all 0.3s;
}

.author-link:hover {
    color: white;
    background-color: rgba(249, 115, 22, 0.1);
    border-color: rgba(249, 115, 22, 0.3);
}

.author-link svg {
    color: var(--color-brand-accent);
    flex-shrink: 0;
}

.author-image-wrapper {
    position: relative;
}

.author-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top right, rgba(249, 115, 22, 0.2), transparent);
    border-radius: 1rem;
}

.author-image {
    width: 100%;
    height: auto;
    object-fit: cover;
    border-radius: 1rem;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.3);
    transition: filter 0.7s;
}

.author-image:hover {
    filter: grayscale(0%);
}

.author-image-caption {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    right: 1.5rem;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(12px);
    padding: 1rem;
    border-radius: 0.75rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.caption-title {
    color: var(--color-brand-accent);
    font-weight: 700;
}

.caption-subtitle {
    color: white;
    font-size: 0.875rem;
    opacity: 0.8;
}

/* Knowledge Section */
.knowledge-section {
    padding: 6rem 0;
}

.section-header {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 4rem;
}

.section-heading {
    font-size: 2.25rem;
    font-weight: 700;
    color: white;
    max-width: 48rem;
}

.section-header-desc {
    color: #9ca3af;
    max-width: 28rem;
    margin-top: 1rem;
    text-align: left;
}

.bento-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.bento-card {
    position: relative;
    background-color: var(--color-brand-surface);
    border-radius: 2rem;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.bento-card:hover {
    border-color: rgba(255, 255, 255, 0.05);
}

.bento-overlay,
.bento-overlay-wide {
    display: none;
}

.bento-bg {
    display: none;
}

.bento-card:hover .bento-bg {
    display: none;
}

.bento-card:hover .bento-overlay,
.bento-card:hover .bento-overlay-wide {
    display: none;
}

.bento-content {
    position: relative;
    padding: 2rem;
    max-width: 36rem;
}

.bento-icon {
    background-color: var(--color-brand-accent);
    width: 3rem;
    height: 3rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 1rem;
}

.bento-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}

.bento-desc {
    color: #9ca3af;
    font-size: 0.875rem;
}

/* Process Section */
.process-section {
    padding: 6rem 0;
    background-color: rgba(11, 17, 32, 0.2);
}

.process-header {
    margin-bottom: 3rem;
}

.process-steps {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.step-card {
    background-color: var(--color-brand-surface);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1rem;
    overflow: hidden;
    transition: all 0.3s;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.step-card.active {
    border-color: rgba(249, 115, 22, 0.5);
    box-shadow: 0 0 20px rgba(249, 115, 22, 0.05);
}

.step-button {
    width: 100%;
    background: none;
    border: none;
    padding: 1.5rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    text-align: left;
    color: white;
    transition: background-color 0.3s;
}

.step-button:hover {
    background-color: rgba(255, 255, 255, 0.02);
}

.step-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    flex: 1;
}

.step-number {
    background-color: rgba(255, 255, 255, 0.05);
    color: white;
    font-weight: 700;
    padding: 1rem;
    border-radius: 0.75rem;
    text-align: center;
    min-width: 80px;
    font-size: 1.25rem;
    font-family: 'Courier New', monospace;
    transition: all 0.3s;
    flex-shrink: 0;
}

.step-card.active .step-number {
    background-color: var(--color-brand-accent);
}

.step-text {
    flex: 1;
}

.step-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.25rem;
    transition: color 0.3s;
}

.step-card.active .step-title {
    color: var(--color-brand-accent);
}

.step-desc {
    color: #9ca3af;
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.step-chevron {
    color: #6b7280;
    transition: transform 0.3s, color 0.3s;
    flex-shrink: 0;
}

.step-card.active .step-chevron {
    transform: rotate(180deg);
    color: var(--color-brand-accent);
}

.step-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-in-out, padding 0.3s ease-in-out;
    padding: 0 1.5rem;
}

.step-card.active .step-content {
    max-height: 500px;
    padding: 0 1.5rem 1.5rem 1.5rem;
}

.step-content p {
    color: #d1d5db;
    line-height: 1.75;
    font-size: 0.95rem;
}

/* Process subtitle - increased line spacing */
.process-subtitle {
    line-height: 2.2;
    margin-top: 1rem;
}

/* Stores Section */
.stores-section {
    padding: 6rem 0;
    position: relative;
    overflow: hidden;
}

.stores-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.stores-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 1;
}

.stores-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, var(--color-brand-dark) 0%, rgba(2, 6, 23, 0.85) 40%, rgba(2, 6, 23, 0.95) 100%);
}

.stores-header {
    text-align: center;
    max-width: 48rem;
    margin: 0 auto 4rem;
    position: relative;
    z-index: 10;
}

.stores-badge {
    display: inline-block;
    padding: 0.25rem 1rem;
    border-radius: 9999px;
    background-color: var(--color-brand-accent);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.stores-title {
    font-size: 2.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
}

.stores-desc {
    color: #9ca3af;
}

.price-card {
    max-width: 800px;
    margin: 0 auto;
    background-color: rgba(11, 17, 32, 0.6);
    backdrop-filter: blur(20px);
    border-radius: 2rem;
    padding: 3rem;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    position: relative;
    z-index: 10;
}

.price-badge {
    display: inline-block;
    background-color: rgba(249, 115, 22, 0.1);
    color: var(--color-brand-accent);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 2rem;
    border: 1px solid rgba(249, 115, 22, 0.2);
}

.price-main {
    text-align: center;
    padding: 2rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 2rem;
}

.price-label {
    display: block;
    font-size: 0.875rem;
    color: #9ca3af;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 0.5rem;
}

.price-value {
    display: block;
    font-size: 4rem;
    font-weight: 800;
    color: var(--color-brand-accent);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.price-note {
    display: block;
    font-size: 0.875rem;
    color: #6b7280;
}

.stores-list {
    margin-top: 2rem;
}

.stores-list-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
}

.store-links {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.75rem;
}

.store-link {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.5rem;
    background-color: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 0.75rem;
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: all 0.3s;
}

.store-link:hover {
    background-color: rgba(249, 115, 22, 0.1);
    border-color: var(--color-brand-accent);
    transform: translateX(4px);
}

.store-link svg:first-child {
    color: var(--color-brand-accent);
}

.store-link span {
    flex: 1;
}

.store-link .arrow-icon {
    color: #6b7280;
    transition: color 0.3s;
}

.store-link:hover .arrow-icon {
    color: var(--color-brand-accent);
}

/* Buy Section (compact) */
.buy-section {
    padding: 4rem 0;
    background-color: var(--color-brand-dark);
}

.buy-banner {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    background-color: var(--color-brand-surface);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 2rem;
    padding: 3rem;
    position: relative;
    overflow: hidden;
}

.buy-banner::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 40%;
    height: 100%;
    background: linear-gradient(135deg, transparent, rgba(249, 115, 22, 0.05));
    pointer-events: none;
}

.buy-banner-text {
    flex: 1;
}

.buy-title {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.5rem;
}

.buy-desc {
    color: #9ca3af;
    font-size: 1rem;
}

.buy-banner-action {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
}

.buy-badge-presale {
    display: inline-block;
    background-color: var(--color-brand-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    margin-bottom: 0.5rem;
}

.buy-price {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--color-brand-accent);
    line-height: 1;
}

.buy-formats {
    font-size: 0.875rem;
    color: #6b7280;
    margin-bottom: 0.5rem;
}

.buy-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background-color: var(--color-brand-accent);
    color: white;
    padding: 1rem 2rem;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 1.125rem;
    text-decoration: none;
    transition: all 0.3s;
    box-shadow: 0 0 20px rgba(249, 115, 22, 0.3);
}

.buy-btn:hover {
    background-color: white;
    color: black;
    transform: translateY(-2px);
}

/* Quote Section */
.quote-section {
    position: relative;
    padding: 8rem 0;
    overflow: hidden;
    background-color: var(--color-brand-accent);
    color: white;
}

.quote-container {
    position: relative;
    z-index: 10;
    max-width: 80rem;
    margin: 0 auto;
    padding: 0 1.5rem;
    text-align: center;
}

.quote-icon {
    width: 3rem;
    height: 3rem;
    margin: 0 auto 2rem;
    opacity: 0.8;
}

.quote-text {
    font-size: 2.25rem;
    font-family: Georgia, serif;
    line-height: 1.3;
    font-weight: 700;
    margin-bottom: 2rem;
}

.quote-author {
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: rgba(255, 255, 255, 0.8);
}

/* Experts Section */
.experts-section {
    padding: 6rem 0;
    background-color: var(--color-brand-dark);
}

.experts-header {
    text-align: center;
    margin-bottom: 4rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.experts-desc {
    color: #9ca3af;
    margin-top: 1rem;
}

/* Experts Slider */
.experts-slider-wrapper {
    position: relative;
    overflow: hidden;
}

.experts-slider-wrapper::before,
.experts-slider-wrapper::after {
    content: '';
    position: absolute;
    top: 0;
    bottom: 0;
    width: 8rem;
    z-index: 20;
    pointer-events: none;
}

.experts-slider-wrapper::before {
    left: 0;
    background: linear-gradient(to right, var(--color-brand-dark) 0%, rgba(2, 6, 23, 0) 100%);
}

.experts-slider-wrapper::after {
    right: 0;
    background: linear-gradient(to left, var(--color-brand-dark) 0%, rgba(2, 6, 23, 0) 100%);
}

.experts-slider {
    display: flex;
    gap: 1.5rem;
    overflow-x: auto;
    scroll-behavior: smooth;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding: 1rem 9rem 1.5rem;
    scrollbar-width: none;
}

.experts-slider::-webkit-scrollbar {
    display: none;
}

.slider-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-top: 2rem;
}

.slider-btn {
    background-color: var(--color-brand-surface);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: white;
    width: 3rem;
    height: 3rem;
    border-radius: 9999px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
}

.slider-btn:hover {
    background-color: var(--color-brand-accent);
    border-color: var(--color-brand-accent);
}

.expert-card {
    background-color: var(--color-brand-surface);
    border: 1px solid rgba(255, 255, 255, 0.05);
    padding: 2rem;
    border-radius: 1.5rem;
    position: relative;
    transition: border-color 0.3s;
    min-width: 300px;
    max-width: 340px;
    flex-shrink: 0;
    scroll-snap-align: start;
}

.expert-card:hover {
    border-color: rgba(249, 115, 22, 0.5);
}

.expert-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.expert-avatar {
    width: 3rem;
    height: 3rem;
    border-radius: 9999px;
    object-fit: cover;
    border: 2px solid var(--color-brand-accent);
}

.expert-avatar-initials {
    width: 3rem;
    height: 3rem;
    border-radius: 9999px;
    background: linear-gradient(135deg, var(--color-brand-accent), #ff8c42);
    border: 2px solid var(--color-brand-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 1rem;
    color: white;
    flex-shrink: 0;
}

.expert-name {
    color: white;
    font-weight: 700;
}

.expert-role {
    font-size: 0.75rem;
    color: var(--color-brand-accent);
}

.expert-text {
    color: #d1d5db;
    line-height: 1.75;
    font-size: 0.875rem;
}

/* Cooperation Section */
.cooperation-section {
    padding: 6rem 0;
    background-color: rgba(11, 17, 32, 0.3);
}

.cooperation-header {
    margin-bottom: 3rem;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.cooperation-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.cooperation-card {
    background-color: var(--color-brand-surface);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1.5rem;
    padding: 2.5rem;
    text-decoration: none;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.cooperation-card:hover {
    border-color: rgba(249, 115, 22, 0.5);
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -12px rgba(249, 115, 22, 0.1);
}

.cooperation-icon {
    width: 3.5rem;
    height: 3.5rem;
    background-color: rgba(249, 115, 22, 0.1);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-brand-accent);
    margin-bottom: 1.5rem;
}

.cooperation-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.75rem;
}

.cooperation-desc {
    color: #9ca3af;
    line-height: 1.75;
    font-size: 0.95rem;
    flex: 1;
    margin-bottom: 1.5rem;
}

.cooperation-cta {
    color: var(--color-brand-accent);
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.3s;
}

.cooperation-card:hover .cooperation-cta {
    color: white;
}

/* FAQ Section */
.faq-section {
    padding: 6rem 0;
    background-color: #0B1120;
}

.faq-container {
    max-width: 56rem;
    margin: 0 auto;
    padding: 0 1.5rem;
}

.faq-header {
    margin-bottom: 3rem;
}

.faq-badge {
    background-color: var(--color-brand-accent);
    color: white;
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
}

.faq-title {
    font-size: 2.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1rem;
}

.faq-subtitle {
    font-size: 1rem;
    color: #9ca3af;
    margin-bottom: 2rem;
    line-height: 1.6;
}

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

.faq-item {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-question {
    width: 100%;
    padding: 1.5rem 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    text-align: left;
    background: none;
    border: none;
    color: #e5e7eb;
    font-size: 1.125rem;
    font-weight: 500;
    cursor: pointer;
    transition: color 0.3s;
}

.faq-question:hover {
    color: var(--color-brand-accent);
}

.faq-question span {
    flex: 1;
}

.faq-icon {
    color: #6b7280;
    transition: transform 0.3s, color 0.3s;
}

.faq-item.active .faq-icon {
    transform: rotate(180deg);
    color: var(--color-brand-accent);
}

.faq-item.active .faq-question {
    color: var(--color-brand-accent);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: all 0.3s ease-in-out;
    opacity: 0;
}

.faq-item.active .faq-answer {
    max-height: 12rem;
    opacity: 1;
    padding-bottom: 1.5rem;
}

.faq-answer p {
    color: #9ca3af;
    line-height: 1.75;
    padding-right: 2rem;
}

/* Footer */
.footer {
    background-color: var(--color-brand-dark);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 5rem 0 2.5rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 3rem;
    margin-bottom: 4rem;
}

.footer-brand {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    margin-bottom: 1.5rem;
}

.footer-text {
    color: #6b7280;
    font-size: 0.875rem;
    line-height: 1.75;
}

.footer-heading {
    color: white;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    font-size: 0.875rem;
}

.footer-links a {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s;
}

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

.footer-contact {
    font-size: 0.875rem;
    color: #9ca3af;
}

.footer-email {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.footer-social {
    display: flex;
    gap: 1rem;
    padding-top: 1rem;
}

.social-link {
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    background-color: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    text-decoration: none;
    transition: all 0.3s;
}

.social-link:hover {
    background-color: var(--color-brand-accent);
    color: white;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    padding-top: 2rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    align-items: center;
    font-size: 0.75rem;
    color: #6b7280;
    gap: 1rem;
}

.footer-legal {
    display: flex;
    gap: 1.5rem;
}

.footer-legal a {
    color: #6b7280;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-legal a:hover {
    color: #9ca3af;
}

.footer-made {
    text-align: center;
    padding-top: 2rem;
    font-size: 0.75rem;
    color: #4b5563;
}

.footer-made a {
    color: var(--color-brand-accent);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-made a:hover {
    color: white;
}

/* Responsive Design */
@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }

    .menu-toggle {
        display: none;
    }

    .hero-content {
        grid-template-columns: 1fr;
        max-width: 1200px;
    }

    .hero-title {
        font-size: 4.5rem;
    }

    .hero-subtitle {
        font-size: 1.25rem;
    }

    .book-mockup {
        display: flex;
    }

    .section-title {
        font-size: 3rem;
    }

    .author-grid {
        grid-template-columns: 1fr 1fr;
        padding: 4rem;
    }

    .section-header {
        flex-direction: row;
        align-items: flex-end;
    }

    .section-header-desc {
        text-align: right;
        margin-top: 0;
    }

    .bento-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .bento-card-wide {
        grid-column: span 2;
    }

    .step-card {
        flex-direction: row;
        align-items: center;
    }

    .step-number {
        margin-bottom: 0;
        margin-right: 1.5rem;
    }

    .step-arrow {
        margin-top: 0;
    }

    .buy-banner {
        flex-direction: row;
        align-items: center;
    }

    .buy-banner-action {
        align-items: flex-end;
        text-align: right;
        flex-shrink: 0;
    }


    .toc-timeline {
        max-width: 1000px;
    }

    .toc-timeline::before {
        display: block;
    }

    .toc-stop {
        grid-template-columns: 1fr 64px 1fr;
        gap: 0;
    }

    .toc-stop-marker {
        grid-column: 2;
        grid-row: 1;
    }

    .toc-stop-line {
        display: block;
    }

    .toc-stop-number {
        width: 64px;
        height: 64px;
        font-size: 1.25rem;
    }

    /* Nieparzyste: treść po prawej */
    .toc-stop:nth-child(odd) .toc-stop-content {
        grid-column: 3;
        grid-row: 1;
        margin-left: 2rem;
    }

    .toc-stop:nth-child(odd)::after {
        content: '';
        grid-column: 1;
        grid-row: 1;
    }

    /* Parzyste: treść po lewej */
    .toc-stop:nth-child(even) .toc-stop-content {
        grid-column: 1;
        grid-row: 1;
        margin-right: 2rem;
    }

    .toc-stop:nth-child(even)::after {
        content: '';
        grid-column: 3;
        grid-row: 1;
    }

    .toc-stop-title {
        font-size: 1.5rem;
        line-height: 64px;
    }

    .cooperation-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .quote-text {
        font-size: 3rem;
    }

    .footer-grid {
        grid-template-columns: repeat(4, 1fr);
    }

    .footer-bottom {
        flex-direction: row;
    }
}

@media (min-width: 1024px) {
    .hero-title {
        font-size: 5rem;
    }
}

/* Downloads Page */
.downloads-hero {
    padding: 10rem 0 4rem;
    background-color: var(--color-brand-dark);
}

.downloads-hero-content {
    max-width: 640px;
}

.downloads-section {
    padding: 2rem 0 6rem;
    background-color: var(--color-brand-dark);
}

.downloads-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.download-card {
    background-color: var(--color-brand-surface);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 1.5rem;
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transition: border-color 0.3s;
}

.download-card:hover {
    border-color: rgba(249, 115, 22, 0.5);
}

.download-card-featured {
    border-color: rgba(249, 115, 22, 0.3);
    background: linear-gradient(135deg, var(--color-brand-surface), rgba(249, 115, 22, 0.05));
}

.download-icon {
    width: 3.5rem;
    height: 3.5rem;
    background-color: rgba(249, 115, 22, 0.1);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-brand-accent);
    flex-shrink: 0;
}

.download-content {
    flex: 1;
}

.download-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.75rem;
}

.download-desc {
    color: #9ca3af;
    line-height: 1.75;
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.download-meta {
    display: flex;
    gap: 0.75rem;
}

.download-format,
.download-chapter {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.download-format {
    background-color: rgba(249, 115, 22, 0.1);
    color: var(--color-brand-accent);
    border: 1px solid rgba(249, 115, 22, 0.2);
}

.download-chapter {
    background-color: rgba(255, 255, 255, 0.05);
    color: #9ca3af;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--color-brand-accent);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all 0.3s;
    align-self: flex-start;
}

.download-btn:hover {
    background-color: white;
    color: black;
    transform: translateY(-2px);
}

.downloads-cta {
    text-align: center;
    margin-top: 4rem;
    padding: 3rem;
    background-color: var(--color-brand-surface);
    border-radius: 2rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.downloads-cta-text {
    color: #d1d5db;
    font-size: 1.125rem;
    margin-bottom: 1.5rem;
}

@media (min-width: 768px) {
    .downloads-grid {
        grid-template-columns: 1fr;
    }

    .download-card {
        flex-direction: row;
        align-items: center;
    }
}