/* ==========================================================================
   PAMP! - Prosty i rzetelny arkusz stylów (Developer & Tool Aesthetic)
   Czysta, czytelna typografia, bez zbędnych gradientów i sztucznych efektów.
   ========================================================================== */

:root {
    --bg-page: #0d1117;
    --bg-panel: #161b22;
    --bg-panel-subtle: #1b212c;
    --border-color: #30363d;
    --border-subtle: #21262d;

    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;

    --link-color: #58a6ff;
    --link-hover: #79c0ff;

    --accent-blue: #1f6feb;
    --accent-blue-hover: #388bfd;
    --accent-green: #238636;
    --accent-green-hover: #2ea043;

    --highlight-bg: rgba(31, 111, 235, 0.08);
    --highlight-header: rgba(31, 111, 235, 0.15);
    --highlight-text: #ffffff;
    --table-header-bg: #12161f;

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", monospace;

    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;
}

/* Wariant Jasny (Light Mode) */
html[data-theme="light"] {
    --bg-page: #ffffff;
    --bg-panel: #f6f8fa;
    --bg-panel-subtle: #f0f2f5;
    --border-color: #d0d7de;
    --border-subtle: #e1e4e8;

    --text-primary: #1f2328;
    --text-secondary: #59636e;
    --text-muted: #8c959f;

    --link-color: #0969da;
    --link-hover: #1a7f37;

    --accent-blue: #0969da;
    --accent-blue-hover: #0856b3;
    --accent-green: #1f883d;
    --accent-green-hover: #1a7f37;

    --highlight-bg: rgba(9, 105, 218, 0.06);
    --highlight-header: rgba(9, 105, 218, 0.12);
    --highlight-text: #0969da;
    --table-header-bg: #eaeef2;
}

html[data-theme="light"] .gh-icon,
html[data-theme="light"] .btn-secondary .btn-icon {
    filter: invert(1);
}

html[data-theme="light"] .hero-title {
    color: #1f2328;
}

html[data-theme="light"] .dl-recommended {
    border-color: var(--accent-blue);
    background-color: #f1f7fe;
}

/* Podstawowe resetowanie */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    color-scheme: dark;
}

body {
    background-color: var(--bg-page);
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.25rem;
}

/* ==========================================================================
   Nawigacja górna (z delikatnym efektem blur)
   ========================================================================== */
.site-header {
    background-color: rgba(13, 17, 23, 0.82);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    position: sticky;
    top: 0;
    z-index: 100;
}

html[data-theme="light"] .site-header {
    background-color: rgba(255, 255, 255, 0.82);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.15rem;
}

.brand-icon {
    width: 26px;
    height: 26px;
}

.nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.92rem;
    transition: color 0.15s ease;
}

.nav a:hover {
    color: var(--text-primary);
}

.nav-github {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    padding: 0.3rem 0.65rem;
    border-radius: var(--radius-md);
    color: var(--text-primary) !important;
}

.nav-github:hover {
    border-color: var(--text-secondary);
}

.gh-icon {
    width: 14px;
    height: 14px;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Selektor języka (Dropdown) */
.lang-select-wrap {
    position: relative;
    display: inline-flex;
    align-items: center;
}

.lang-select {
    appearance: none;
    -webkit-appearance: none;
    background-color: var(--bg-panel);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 0.35rem 1.6rem 0.35rem 0.65rem;
    font-size: 0.82rem;
    font-weight: 600;
    font-family: var(--font-sans);
    cursor: pointer;
    transition: all 0.15s ease;
}

.lang-select:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.lang-select:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.lang-arrow {
    position: absolute;
    right: 0.5rem;
    pointer-events: none;
    width: 10px;
    height: 10px;
    fill: var(--text-muted);
}

.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
}

.theme-toggle:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.theme-icon {
    width: 16px;
    height: 16px;
}

/* W trybie ciemnym pokazujemy słońce (kliknięcie zmieni na jasny), ukrywamy księżyc */
.icon-moon {
    display: none;
}
.icon-sun {
    display: block;
}

/* W trybie jasnym pokazujemy księżyc (kliknięcie zmieni na ciemny), ukrywamy słońce */
html[data-theme="light"] .icon-sun {
    display: none;
}
html[data-theme="light"] .icon-moon {
    display: block;
}

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border-color);
    padding: 0.4rem 0.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background-color: var(--text-primary);
}

/* ==========================================================================
   Przyciski
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.65rem 1.15rem;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: var(--radius-md);
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color 0.15s ease, border-color 0.15s ease;
    white-space: nowrap;
}

.btn-primary {
    background-color: var(--accent-green);
    color: #ffffff;
    border-color: rgba(255, 255, 255, 0.1);
}

.btn-primary:hover {
    background-color: var(--accent-green-hover);
}

.btn-secondary {
    background-color: var(--bg-panel);
    color: var(--text-primary);
    border-color: var(--border-color);
}

.btn-secondary:hover {
    background-color: var(--bg-panel-subtle);
    border-color: var(--text-secondary);
}

.btn-full {
    width: 100%;
}

.btn-icon {
    width: 16px;
    height: 16px;
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
    padding: 4rem 0 3rem;
    border-bottom: 1px solid var(--border-subtle);
}

.hero-layout {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3rem;
    align-items: center;
}

.hero-kicker {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--accent-blue-hover);
    margin-bottom: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    font-family: var(--font-mono);
}

.hero-title {
    font-size: 2.2rem;
    font-weight: 700;
    line-height: 1.25;
    margin-bottom: 1.25rem;
    color: #ffffff;
}

.hero-lead {
    font-size: 1.05rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 1.75rem;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.hero-meta {
    list-style: none;
    display: flex;
    flex-wrap: wrap;
    gap: 1.25rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-subtle);
    padding-top: 1.25rem;
}

.hero-meta strong {
    color: var(--text-primary);
}

.hero-preview {
    display: flex;
    justify-content: center;
}

.preview-frame {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 6px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
}

.preview-img {
    display: block;
    width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

/* ==========================================================================
   Intro Box (Misja)
   ========================================================================== */
.intro-section {
    padding: 3rem 0;
}

.intro-box {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 2rem;
}

.intro-box h2 {
    font-size: 1.35rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.intro-box p {
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-size: 0.98rem;
}

.intro-box p:last-child {
    margin-bottom: 0;
}

/* ==========================================================================
   Nagłówki sekcji
   ========================================================================== */
.section-heading {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.section-subheading {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1rem;
}

/* ==========================================================================
   Funkcje (Showcase & Pillars - bez monotonnych kart)
   ========================================================================== */
.features-section {
    padding: 4.5rem 0 3.5rem;
    border-bottom: 1px solid var(--border-subtle);
}

.features-header {
    margin-bottom: 3.5rem;
}

/* Wiersz prezentacji flagowej funkcji (Showcase Block) */
.showcase-block {
    display: grid;
    grid-template-columns: 1fr 1.15fr;
    gap: 3.5rem;
    align-items: center;
    margin-bottom: 4.5rem;
}

.showcase-reverse {
    grid-template-columns: 1.15fr 1fr;
}

.showcase-reverse .showcase-visual {
    order: 1;
}

.showcase-reverse .showcase-content {
    order: 2;
}

.showcase-tag {
    display: inline-block;
    font-size: 0.78rem;
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--accent-blue-hover);
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.showcase-title {
    font-size: 1.65rem;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.3;
    margin-bottom: 1rem;
}

.showcase-desc {
    font-size: 0.98rem;
    color: var(--text-secondary);
    line-height: 1.65;
    margin-bottom: 1.5rem;
}

.showcase-desc code {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    padding: 0.15rem 0.35rem;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.85em;
    color: var(--text-primary);
}

.showcase-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.showcase-bullets li {
    display: flex;
    align-items: flex-start;
    gap: 0.65rem;
    font-size: 0.92rem;
    color: var(--text-primary);
    line-height: 1.5;
}

.bullet-icon {
    color: var(--accent-green-hover);
    font-weight: 700;
    line-height: 1.4;
    flex-shrink: 0;
}

.showcase-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.showcase-frame {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 6px;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.35);
    width: 100%;
}

.showcase-img {
    display: block;
    width: 100%;
    height: auto;
    object-fit: contain;
    border-radius: var(--radius-sm);
}

/* 4 filary techniczne (Pillars Grid - czysta architektura bez ciężkich kart) */
.pillars-section {
    border-top: 1px solid var(--border-subtle);
    padding-top: 3.5rem;
    margin-top: 1rem;
}

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

.pillar-item {
    display: flex;
    flex-direction: column;
}

.pillar-item h4 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    line-height: 1.35;
}

.pillar-item p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.55;
}

.pillar-item code {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    padding: 0.15rem 0.35rem;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.85em;
    color: var(--text-primary);
}

/* ==========================================================================
   Tabela Porównawcza (Data Table)
   ========================================================================== */
.comparison-section {
    padding: 3rem 0;
}

.table-wrap {
    overflow-x: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background-color: var(--bg-panel);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.92rem;
}

.data-table th,
.data-table td {
    padding: 0.9rem 1.15rem;
    border-bottom: 1px solid var(--border-subtle);
}

.data-table th:first-child,
.data-table td:first-child {
    width: 40%;
}

.data-table th:nth-child(2),
.data-table td:nth-child(2) {
    width: 32%;
}

.data-table th:nth-child(3),
.data-table td:nth-child(3) {
    width: 28%;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.data-table th {
    background-color: var(--table-header-bg);
    color: var(--text-primary);
    font-weight: 600;
    font-size: 0.9rem;
}

.data-table .col-highlight {
    background-color: var(--highlight-bg);
    color: var(--highlight-text);
    font-weight: 600;
}

.data-table th.col-highlight {
    background-color: var(--highlight-header);
    color: var(--link-color);
}

/* ==========================================================================
   Sekcja CKE (Edukacja)
   ========================================================================== */
.cke-section {
    padding: 3rem 0;
}

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

.cke-header {
    margin-bottom: 1rem;
}

.cke-header .tag {
    font-size: 0.78rem;
    font-family: var(--font-mono);
    color: var(--accent-green-hover);
    text-transform: uppercase;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 0.25rem;
}

.cke-header h2 {
    font-size: 1.45rem;
    color: var(--text-primary);
}

.cke-card > p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin-bottom: 1.5rem;
}

.cke-details {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    border-top: 1px solid var(--border-subtle);
    padding-top: 1.5rem;
}

.cke-detail-item strong {
    display: block;
    font-size: 0.98rem;
    color: var(--text-primary);
    margin-bottom: 0.35rem;
}

.cke-detail-item p {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* ==========================================================================
   Sekcja FAQ (Często zadawane pytania)
   ========================================================================== */
.faq-section {
    padding: 3rem 0;
}

.faq-list {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
}

.faq-item {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: border-color 0.15s ease;
}

.faq-item:hover {
    border-color: var(--text-secondary);
}

.faq-item[open] {
    border-color: rgba(31, 111, 235, 0.4);
}

.faq-question {
    padding: 1.1rem 1.4rem;
    font-weight: 600;
    font-size: 1.02rem;
    cursor: pointer;
    list-style: none;
    display: flex;
    justify-content: space-between;
    align-items: center;
    user-select: none;
    color: var(--text-primary);
}

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

.faq-chevron {
    font-size: 1.1rem;
    color: var(--text-muted);
    transition: transform 0.2s ease;
    margin-left: 1rem;
    flex-shrink: 0;
}

.faq-item[open] .faq-chevron {
    transform: rotate(180deg);
    color: var(--accent-blue-hover);
}

.faq-answer {
    padding: 0 1.4rem 1.25rem;
    font-size: 0.94rem;
    color: var(--text-secondary);
    line-height: 1.6;
    border-top: 1px solid var(--border-subtle);
    margin-top: 0.25rem;
    padding-top: 0.9rem;
}

.faq-answer p {
    margin-bottom: 0.65rem;
}

.faq-answer p:last-child {
    margin-bottom: 0;
}

.faq-answer ul {
    margin: 0.65rem 0 0.85rem 1.25rem;
}

.faq-answer li {
    margin-bottom: 0.45rem;
    line-height: 1.5;
}

.faq-answer code {
    background-color: var(--bg-page);
    border: 1px solid var(--border-subtle);
    padding: 0.15rem 0.35rem;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 0.85em;
    color: var(--text-primary);
}

/* ==========================================================================
   Centrum Pobierania
   ========================================================================== */
.download-section {
    padding: 3rem 0;
}

.release-tag {
    display: none;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--link-color);
    background-color: var(--highlight-bg);
    border: 1px solid var(--border-color);
    padding: 0.15rem 0.5rem;
    border-radius: var(--radius-sm);
    margin-left: 0.5rem;
    vertical-align: middle;
}

.download-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.dl-box {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 1.75rem 1.5rem;
    display: flex;
    flex-direction: column;
    position: relative;
}

.dl-recommended {
    border-color: var(--accent-blue);
    background-color: #171f2d;
}

.dl-badge {
    position: absolute;
    top: -10px;
    left: 1.5rem;
    background-color: var(--accent-blue);
    color: #ffffff;
    font-size: 0.72rem;
    font-weight: 700;
    padding: 0.15rem 0.6rem;
    border-radius: var(--radius-sm);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.dl-box h3 {
    font-size: 1.2rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.dl-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin-bottom: 1.25rem;
    flex-grow: 1;
}

.dl-info {
    display: flex;
    align-items: center;
    font-family: var(--font-mono);
    font-size: 0.82rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-subtle);
    padding: 0.75rem 0;
    margin-bottom: 1rem;
}

.requirements-box {
    background-color: var(--bg-panel);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0.9rem 1.25rem;
    font-size: 0.88rem;
    color: var(--text-secondary);
    text-align: center;
}

.requirements-box strong {
    color: var(--text-primary);
}

/* ==========================================================================
   Stopka (Footer)
   ========================================================================== */
.site-footer {
    border-top: 1px solid var(--border-color);
    padding: 2.5rem 0;
    margin-top: 3rem;
    background-color: var(--bg-panel);
    font-size: 0.88rem;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-left p {
    color: var(--text-secondary);
    margin-bottom: 0.25rem;
}

.footer-left strong {
    color: var(--text-primary);
}

.footer-left a {
    color: var(--link-color);
    text-decoration: none;
}

.footer-left a:hover {
    text-decoration: underline;
}

.footer-links {
    display: flex;
    gap: 1.25rem;
}

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

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

/* ==========================================================================
   Responsywność (Mobile)
   ========================================================================== */
@media (max-width: 900px) {
    .showcase-block,
    .showcase-reverse {
        grid-template-columns: 1fr;
        gap: 2.25rem;
        margin-bottom: 3.5rem;
    }

    .showcase-reverse .showcase-visual {
        order: 2;
    }

    .showcase-reverse .showcase-content {
        order: 1;
    }

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

@media (max-width: 860px) {
    .hero-layout {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .hero-title {
        font-size: 1.85rem;
    }

    .cke-details {
        grid-template-columns: 1fr;
    }

    .download-cards {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 680px) {
    .nav {
        display: none;
        position: absolute;
        top: 60px;
        left: 0;
        width: 100%;
        background-color: var(--bg-panel);
        border-bottom: 1px solid var(--border-color);
        flex-direction: column;
        align-items: flex-start;
        padding: 1.25rem;
        gap: 1rem;
    }

    .nav.open {
        display: flex;
    }

    .nav-toggle {
        display: flex;
    }

    .footer-content {
        flex-direction: column;
        align-items: flex-start;
    }

    .pillars-grid {
        grid-template-columns: 1fr;
        gap: 1.75rem;
    }
}