/* =============================================================
   ZeroDataUpload — Shared Navigation & Footer
   Single source of truth for all pages (blog, tools, etc.)
   Replicates the exact Tailwind-rendered styles from index.html
   ============================================================= */

/* ----- Side space (global layout rule): 16 px on phones, 24 px from 640 px ----- */

:root {
    --zdu-gutter: 16px;
}

@media (min-width: 640px) {
    :root {
        --zdu-gutter: 24px;
    }
}

/* ----- Skip link (first focusable element on every page) ----- */

.skip-link {
    position: absolute;
    left: -9999px;
    top: 8px;
    z-index: 200;
    padding: 10px 16px;
    background: #7C3AED;
    color: #fff;
    border-radius: 8px;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    text-decoration: none;
}

.skip-link:focus {
    left: 16px;
    outline: 2px solid #fff;
    outline-offset: 2px;
}

.zdu-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* ----- Scoped Reset (ensures nav/footer look identical on ALL pages,
         regardless of Tailwind, page-level resets, or browser defaults) ----- */

.site-nav *,
.site-nav *::before,
.site-nav *::after,
.site-footer *,
.site-footer *::before,
.site-footer *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.site-nav a,
.site-footer a {
    color: inherit;
    text-decoration: none;
    background: none;
}

.site-nav button,
.site-footer button {
    cursor: pointer;
    font-family: inherit;
    font-size: inherit;
    line-height: inherit;
    color: inherit;
    border: none;
    background: none;
}

.site-nav svg,
.site-footer svg {
    display: block;
    flex-shrink: 0;
}

.site-nav img,
.site-footer img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ----- Navigation ----- */

.site-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: rgba(255, 255, 255, 0.03);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

.site-nav-inner {
    max-width: 1600px;
    margin: 0 auto;
    padding: 0 var(--zdu-gutter, 24px);
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

/* Logo */
.site-nav .nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    flex-shrink: 0;
    color: inherit;
}

.site-nav .nav-logo::after {
    display: none !important;
}

.site-nav .nav-logo-icon {
    position: relative;
    width: 40px;
    height: 40px;
}

.site-nav .nav-logo-icon .glow {
    position: absolute;
    inset: 0;
    background: #8B5CF6;
    filter: blur(24px);
    opacity: 0.5;
}

.site-nav .nav-logo-icon svg {
    position: relative;
    width: 40px;
    height: 40px;
    color: #a78bfa;
}

.site-nav .nav-logo-icon img {
    position: relative;
    display: block;
    width: 40px;
    height: 40px;
    border-radius: 9px;
}

.site-nav .nav-logo-text {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, #8B5CF6, #EC4899, #3B82F6, #8B5CF6);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

/* Nav Links */
.site-nav .nav-links {
    display: flex;
    align-items: center;
    gap: 24px;
    list-style: none;
    margin: 0;
    padding: 0;
}

.site-nav .nav-links a {
    color: #e5e7eb;
    text-decoration: none;
    font-size: 1rem;
    transition: all 0.3s;
    white-space: nowrap;
    position: relative;
    padding: 0;
    background: none;
}

.site-nav .nav-links a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #a78bfa;
    transition: width 0.3s;
    border-radius: 1px;
}

.site-nav .nav-links a:hover {
    color: #a78bfa;
}

.site-nav .nav-links a:hover::after {
    width: 100%;
}

.site-nav .nav-links a.active {
    color: #a78bfa;
    font-weight: 600;
}

.site-nav .nav-links a.active::after {
    width: 100%;
}

.site-nav a:focus-visible,
.site-nav button:focus-visible,
.site-footer a:focus-visible,
.site-footer button:focus-visible {
    outline: 2px solid #a78bfa;
    outline-offset: 3px;
    border-radius: 6px;
}

/* Search Button */
.site-nav .nav-search {
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.3s;
    display: flex;
    align-items: center;
}

.site-nav .nav-search svg {
    width: 20px;
    height: 20px;
    color: #9ca3af;
    transition: color 0.3s;
}

.site-nav .nav-search:hover {
    background: rgba(255, 255, 255, 0.1);
}

.site-nav .nav-search:hover svg {
    color: #a78bfa;
}

/* CTA Button */
.site-nav .nav-cta {
    background: linear-gradient(to right, #7C3AED, #DB2777) !important;
    color: #fff !important;
    -webkit-text-fill-color: #fff !important;
    padding: 10px 24px !important;
    border-radius: 9999px;
    font-weight: 600;
    font-size: 1rem;
    transition: box-shadow 0.3s;
}

.site-nav .nav-cta::after {
    display: none !important;
}

.site-nav .nav-cta:hover {
    box-shadow: 0 25px 50px -12px rgba(139, 92, 246, 0.5);
    color: #fff !important;
}

/* Compact controls (search + hamburger), shown below 1024 px */
.site-nav .nav-compact {
    display: none;
    align-items: center;
    gap: 4px;
}

.site-nav .nav-hamburger {
    display: block;
    background: none;
    border: none;
    color: #fff;
    padding: 8px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.3s;
}

.site-nav .nav-hamburger:hover {
    background: rgba(255, 255, 255, 0.1);
}

.site-nav .nav-hamburger svg {
    width: 24px;
    height: 24px;
}

/* Mobile Menu */
.site-nav .mobile-menu {
    display: none;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(30px) saturate(200%);
    -webkit-backdrop-filter: blur(30px) saturate(200%);
    border-top: 1px solid rgba(255, 255, 255, 0.15);
    padding: 16px var(--zdu-gutter, 24px);
}

.site-nav .mobile-menu.open {
    display: block;
}

.site-nav .mobile-menu a {
    display: block;
    color: #e5e7eb;
    text-decoration: none;
    padding: 10px 0;
    font-size: 1rem;
    transition: color 0.3s;
}

.site-nav .mobile-menu a::after {
    display: none !important;
}

.site-nav .mobile-menu a:hover {
    color: #a78bfa;
}

.site-nav .mobile-menu a.active {
    color: #a78bfa;
    font-weight: 600;
}

.site-nav .mobile-menu .mobile-cta {
    display: block;
    background: linear-gradient(to right, #7C3AED, #DB2777);
    color: #fff !important;
    padding: 12px 24px;
    border-radius: 9999px;
    text-align: center;
    font-weight: 600;
    margin-top: 8px;
}

/* ----- Command Palette ----- */

.cmd-palette-overlay {
    position: fixed;
    inset: 0;
    z-index: 100;
}

.cmd-palette-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
}

.cmd-palette-positioner {
    position: relative;
    display: flex;
    justify-content: center;
    padding: 0 16px;
    padding-top: 15vh;
    pointer-events: none;
}

.cmd-palette-box {
    width: 100%;
    max-width: 520px;
    background: rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(30px) saturate(200%);
    -webkit-backdrop-filter: blur(30px) saturate(200%);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: 16px;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(139, 92, 246, 0.1);
    overflow: hidden;
    pointer-events: auto;
    animation: cmdSlideIn 0.15s ease-out;
}

@keyframes cmdSlideIn {
    from { opacity: 0; transform: scale(0.96) translateY(-10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.cmd-palette-input-row {
    display: flex;
    align-items: center;
    padding: 0 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.cmd-palette-search-icon {
    width: 20px;
    height: 20px;
    color: #a78bfa;
    flex-shrink: 0;
}

.cmd-palette-input-row input {
    flex: 1;
    min-width: 0;
    background: transparent;
    border: none;
    padding: 16px 16px;
    color: #fff;
    font-size: 1rem;
    outline: none;
    font-family: inherit;
}

.cmd-palette-input-row:focus-within {
    box-shadow: inset 0 -2px 0 #a78bfa;
}

.cmd-palette-input-row input::placeholder {
    color: #6b7280;
}

.cmd-palette-input-row kbd {
    display: none;
    padding: 4px 8px;
    font-size: 11px;
    color: #6b7280;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 6px;
    flex-shrink: 0;
    margin-right: 8px;
    font-family: inherit;
}

@media (min-width: 640px) {
    .cmd-palette-input-row kbd {
        display: inline-flex;
    }
}

.cmd-palette-close {
    background: none;
    border: none;
    padding: 6px;
    cursor: pointer;
    border-radius: 8px;
    transition: background 0.2s;
    flex-shrink: 0;
}

.cmd-palette-close svg {
    width: 16px;
    height: 16px;
    color: #9ca3af;
}

.cmd-palette-close:hover {
    background: rgba(255, 255, 255, 0.1);
}

.cmd-palette-results {
    max-height: 50vh;
    overflow-y: auto;
    padding: 8px;
}

.cmd-palette-results::-webkit-scrollbar { width: 6px; }
.cmd-palette-results::-webkit-scrollbar-track { background: transparent; }
.cmd-palette-results::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }

.cmd-palette-empty {
    padding: 40px 0;
    text-align: center;
    color: #8b93a1;
    font-size: 0.9rem;
}

.cmd-palette-group-label {
    padding: 8px 12px;
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.cmd-palette-result {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: 12px;
    text-decoration: none;
    color: inherit;
    transition: background 0.2s;
    cursor: pointer;
}

.cmd-palette-result:hover,
.cmd-palette-result.active,
.cmd-palette-result:focus-visible {
    background: rgba(255, 255, 255, 0.1);
    outline: none;
}

.cmd-palette-result.active .cmd-palette-result-title,
.cmd-palette-result:focus-visible .cmd-palette-result-title {
    color: #c4b5fd;
}

.cmd-palette-result::after {
    display: none !important;
}

.cmd-palette-result-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.cmd-palette-result-text {
    min-width: 0;
    flex: 1;
}

.cmd-palette-result-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: #fff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.cmd-palette-result:hover .cmd-palette-result-title {
    color: #c4b5fd;
}

.cmd-palette-result-desc {
    font-size: 0.75rem;
    color: #8b93a1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* ----- Footer ----- */

.site-footer {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    padding: 64px var(--zdu-gutter, 24px);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    background: var(--dark, #0a0a14);
    color: #fff;
}

.site-footer-inner {
    max-width: 1600px;
    margin: 0 auto;
}

.site-footer .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}

.site-footer .footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
}

.site-footer .footer-logo-icon {
    position: relative;
    width: 40px;
    height: 40px;
}

.site-footer .footer-logo-icon .glow {
    position: absolute;
    inset: 0;
    background: #8B5CF6;
    filter: blur(24px);
    opacity: 0.5;
}

.site-footer .footer-logo-icon svg {
    position: relative;
    width: 40px;
    height: 40px;
    color: #a78bfa;
}

.site-footer .footer-logo-icon img {
    position: relative;
    display: block;
    width: 40px;
    height: 40px;
    border-radius: 9px;
}

.site-footer .footer-logo-text {
    font-family: 'Space Grotesk', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, #8B5CF6, #EC4899, #3B82F6, #8B5CF6);
    background-size: 300% 100%;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.site-footer .footer-brand-text {
    color: #9ca3af;
    font-size: 1.1rem;
    line-height: 1.625;
    margin-bottom: 24px;
    max-width: 400px;
}

.site-footer .footer-copyright {
    font-size: 0.85rem;
    color: #8b93a1;
}

.site-footer h4 {
    font-weight: 700;
    font-size: 1.1rem;
    margin-bottom: 20px;
    color: #fff;
}

.site-footer ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.site-footer ul li {
    margin-bottom: 12px;
}

.site-footer ul a,
.site-footer ul .footer-link-btn {
    color: #9ca3af;
    text-decoration: none;
    transition: color 0.3s, transform 0.3s;
    display: inline-block;
    font-size: 0.95rem;
    font-family: inherit;
    text-align: left;
}

.site-footer ul a::after {
    display: none !important;
}

.site-footer ul a:hover,
.site-footer ul .footer-link-btn:hover {
    color: #a78bfa;
    transform: translateX(4px);
}

.site-footer .footer-divider {
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    margin: 32px 0;
}

.site-footer .footer-bottom {
    text-align: center;
    color: #8b93a1;
    font-size: 0.9rem;
}

.site-footer .footer-bottom .heart {
    color: #a78bfa;
}

/* ----- Responsive ----- */

/* Below 1024 px the link row no longer fits beside the logo: show search + hamburger instead. */
@media (max-width: 1023.98px) {
    .site-nav .nav-links {
        display: none;
    }

    .site-nav .nav-compact {
        display: flex;
    }

    .site-footer .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }
}

/* Phones: 16 px gutter (from the variable), lower bar, smaller logo, one footer column. */
@media (max-width: 639.98px) {
    .site-nav-inner {
        height: 64px;
    }

    .site-nav .nav-logo-text {
        font-size: 1.25rem;
    }

    .site-footer {
        padding-top: 40px;
        padding-bottom: 40px;
    }

    .site-footer .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

/* ----- Light Theme Overrides ----- */

[data-theme="light"] .site-nav {
    background: rgba(255, 255, 255, 0.85);
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}

[data-theme="light"] .site-nav .nav-links a {
    color: #374151;
}

[data-theme="light"] .site-nav .nav-links a:hover,
[data-theme="light"] .site-nav .nav-links a.active {
    color: #7C3AED;
}

[data-theme="light"] .site-nav .nav-hamburger {
    color: #374151;
}

[data-theme="light"] .site-nav .nav-hamburger:hover {
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .site-nav .nav-search svg {
    color: #6b7280;
}

[data-theme="light"] .site-nav .nav-search:hover {
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .site-nav .mobile-menu {
    background: rgba(255, 255, 255, 0.95);
    border-top: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .site-nav .mobile-menu a {
    color: #374151;
}

[data-theme="light"] .site-nav .mobile-menu a:hover,
[data-theme="light"] .site-nav .mobile-menu a.active {
    color: #7C3AED;
}

[data-theme="light"] .site-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    background: #f8f9fa; /* pages without a --dark variable (homepage, 404, converter docs) */
}

[data-theme="light"] .site-footer h4 {
    color: #0a0a14;
}

[data-theme="light"] .site-footer .footer-brand-text {
    color: #6b7280;
}

[data-theme="light"] .site-footer .footer-copyright {
    color: #6b7280;
}

[data-theme="light"] .site-footer ul a,
[data-theme="light"] .site-footer ul .footer-link-btn {
    color: #6b7280;
}

[data-theme="light"] .site-footer ul a:hover,
[data-theme="light"] .site-footer ul .footer-link-btn:hover {
    color: #7C3AED;
}

[data-theme="light"] .site-footer .footer-bottom {
    color: #6b7280;
}

[data-theme="light"] .site-footer .footer-divider {
    background: linear-gradient(90deg, transparent, rgba(0, 0, 0, 0.1), transparent);
}

/* Command palette light mode */
[data-theme="light"] .cmd-palette-box {
    background: rgba(255, 255, 255, 0.95);
    border: 1px solid rgba(0, 0, 0, 0.15);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.15);
}

[data-theme="light"] .cmd-palette-input-row {
    border-bottom: 1px solid rgba(0, 0, 0, 0.1);
}

[data-theme="light"] .cmd-palette-input-row input {
    color: #0a0a14;
}

[data-theme="light"] .cmd-palette-result-title {
    color: #0a0a14;
}

[data-theme="light"] .cmd-palette-result:hover,
[data-theme="light"] .cmd-palette-result.active,
[data-theme="light"] .cmd-palette-result:focus-visible {
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="light"] .cmd-palette-result:hover .cmd-palette-result-title,
[data-theme="light"] .cmd-palette-result.active .cmd-palette-result-title,
[data-theme="light"] .cmd-palette-result:focus-visible .cmd-palette-result-title {
    color: #7C3AED;
}

[data-theme="light"] .cmd-palette-result-desc,
[data-theme="light"] .cmd-palette-empty {
    color: #6b7280;
}

[data-theme="light"] .site-nav .nav-compact .nav-search svg {
    color: #6b7280;
}

/* ==========================================================================
   Print (every page family loads this file): no navigation, banner, toggle or ads;
   black on white; the address printed after each link in the content.
   ========================================================================== */
@media print {
    .skip-link, header .site-nav, .site-footer, #zdu-cookie-banner, #sharedCommandPalette, .theme-toggle,
    .scroll-progress, .tool-nav, .blog-nav, ins.adsbygoogle, .particles, .blob, noscript {
        display: none !important;
    }
    html, body {
        background: #fff !important;
        color: #000 !important;
    }
    body * {
        color: #000 !important;
        background: transparent !important;
        box-shadow: none !important;
        text-shadow: none !important;
        animation: none !important;
        transition: none !important;
    }
    body * ::before, body * ::after { color: #000 !important; }
    .container, article, main {
        max-width: none !important;
        border: 0 !important;
        padding-left: 0 !important;
        padding-right: 0 !important;
    }
    img { max-width: 100% !important; page-break-inside: avoid; }
    h1, h2, h3, h4 { page-break-after: avoid; }
    pre, blockquote, table, figure { page-break-inside: avoid; }
    #main-content a[href^="http"]::after { content: " (" attr(href) ")"; font-size: 0.85em; }
    #main-content a[href^="/"]::after { content: " (https://zerodataupload.com" attr(href) ")"; font-size: 0.85em; }
    #main-content a[href^="#"]::after { content: none; }
}