:root {

    --primary: #2563eb;
    --primary-hover: #1d4ed8;

    --background: #f8fafc;
    --surface: #ffffff;

    --text: #111827;
    --text-light: #64748b;

    --border: #e5e7eb;

    --shadow:
        0 1px 3px rgba(0, 0, 0, .08),
        0 8px 24px rgba(0, 0, 0, .05);

    --radius: 14px;

}

body.dark {

    --background: #0f172a;
    --surface: #1e293b;

    --text: #f8fafc;
    --text-light: #94a3b8;

    --border: #334155;

    --shadow:
        0 1px 3px rgba(0, 0, 0, .35),
        0 10px 30px rgba(0, 0, 0, .35);

}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {

    font-family: "Inter", sans-serif;

    background: var(--background);

    color: var(--text);

    line-height: 1.6;

    transition:
        background .25s ease,
        color .25s ease;

}

.container {

    width: 100%;

    max-width: 1200px;

    margin: 0 auto;

    padding: 0 20px;

}

.header {

    position: sticky;

    top: 0;

    z-index: 1000;

    background: var(--surface);

    border-bottom: 1px solid var(--border);

    backdrop-filter: blur(12px);

}

.header .container {

    display: flex;

    justify-content: space-between;

    align-items: center;

    padding-top: 16px;
    padding-bottom: 16px;

}

.logo {

    display: inline-flex;

    align-items: center;

    gap: 10px;

    font-size: 1.3rem;

    font-weight: 700;

    color: var(--primary);

    text-decoration: none;

}

.logo-mark {

    flex-shrink: 0;

    border-radius: 8px;

}

.hero {

    text-align: center;

    padding: 70px 0 40px;

}

.hero h1 {

    font-size: 3rem;

    font-weight: 700;

    margin-bottom: 16px;

    line-height: 1.1;

}

.hero p {

    font-size: 1.1rem;

    color: var(--text-light);

    max-width: 700px;

    margin: 0 auto;

}

.tool-card,
.results-card,
.preview-card,
.faq {

    background: var(--surface);

    border: 1px solid var(--border);

    border-radius: var(--radius);

    box-shadow: var(--shadow);

    margin-bottom: 28px;

    padding: 24px;

}

textarea {

    width: 100%;

    border: 1px solid var(--border);

    border-radius: 12px;

    background: var(--background);

    color: var(--text);

    padding: 16px;

    resize: vertical;

    font-family: Consolas, monospace;

    font-size: 14px;

}

#inputData {

    min-height: 300px;

}

button {

    border: none;

    cursor: pointer;

    border-radius: 10px;

    padding: 12px 18px;

    font-size: 14px;

    font-weight: 600;

    transition: .2s;

}

button:hover {

    transform: translateY(-2px);

}

.btn-primary {

    background: var(--primary);
    color: #fff;
}

.btn-primary:hover {

    background: var(--primary-hover);
}

.btn-secondary {

    background: var(--surface);
    color: var(--text);
    border: 1px solid var(--border);
}

.btn-secondary:hover {

    border-color: var(--primary);
    color: var(--primary);
}

.btn-ghost {

    background: transparent;
    color: var(--text-light);
    border: 1px solid var(--border);
}

.btn-ghost:hover {

    color: var(--text);
}

.section-header {

    display: flex;

    justify-content: space-between;

    align-items: center;

    margin-bottom: 18px;

}

.section-header h2 {

    font-size: 1.3rem;

}

#urlCount {

    font-size: .9rem;

    color: var(--text-light);

}

.preview-grid {

    display: grid;

    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));

    gap: 18px;

    margin-top: 20px;

}

.preview-item {

    background: var(--background);

    border: 1px solid var(--border);

    border-radius: 12px;

    overflow: hidden;

}

.preview-item img {

    width: 100%;

    height: 220px;

    object-fit: cover;

    display: block;

}

.preview-item .url {

    padding: 12px;

    font-size: 12px;

    word-break: break-word;

}

.preview-item video {

    width: 100%;

    display: block;

}

.ad-section {

    margin: 40px 0;

}

.ad-placeholder {

    min-height: 90px;

    display: flex;

    justify-content: center;

    align-items: center;

    border-radius: var(--radius);

    border: 2px dashed var(--border);

    background: var(--surface);

    color: var(--text-light);

    font-size: .95rem;

}

.faq h2 {

    margin-bottom: 20px;

}

.faq-item {

    border-bottom: 1px solid var(--border);

    padding: 18px 0;

}

.faq-item:last-child {

    border-bottom: none;

}

.faq-item h3 {

    margin-bottom: 8px;

    font-size: 1rem;

}

.faq-item p {

    color: var(--text-light);

}

footer {

    margin-top: 50px;

    padding: 30px 0;

    border-top: 1px solid var(--border);

    text-align: center;

    color: var(--text-light);

}

.badge {

    display: inline-flex;

    align-items: center;

    gap: 6px;

    padding: 6px 12px;

    border-radius: 999px;

    font-size: 12px;

    background: rgba(37, 99, 235, .1);

    color: var(--primary);

}

.success {

    color: #16a34a;

}

.error {

    color: #dc2626;

}

.loading {

    opacity: .6;

    pointer-events: none;

}

.hidden {

    display: none !important;

}

.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;
}

/* Focus visibility */

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {

    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* Top nav */

.main-nav {

    display: flex;
    gap: 18px;
    flex-wrap: wrap;
}

.main-nav a {

    color: var(--text-light);
    text-decoration: none;
    font-size: .92rem;
    font-weight: 500;
}

.main-nav a:hover {

    color: var(--primary);
}

/* Tabs */

.tabs {

    display: flex;
    gap: 8px;
    margin-bottom: 18px;
    border-bottom: 1px solid var(--border);
}

.tab {

    background: transparent;
    color: var(--text-light);
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    padding: 10px 14px;
}

.tab:hover {

    transform: none;
    color: var(--text);
}

.tab.active-tab {

    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Tool footnote / link buttons */

.tool-footnote {

    margin-top: 14px;
}

.link-btn {

    background: transparent;
    border: none;
    color: var(--text-light);
    padding: 4px 0;
    font-size: .85rem;
}

.link-btn:hover {

    transform: none;
    color: var(--primary);
}

/* Stats bar */

.stats-bar {

    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 16px;
}

.stats-bar:empty {

    display: none;
}

/* Filter bar */

.filter-bar {

    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.filter-pills {

    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.pill {

    background: var(--background);
    color: var(--text);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 6px 14px;
    font-size: .85rem;
}

.pill:hover {

    transform: none;
}

.pill.active {

    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.filter-bar input[type="text"] {

    flex: 1;
    min-width: 180px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--background);
    color: var(--text);
    padding: 10px 12px;
    font-size: 14px;
    font-family: "Inter", sans-serif;
}

.filter-check {

    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: .85rem;
    color: var(--text-light);
    cursor: pointer;
}

/* Preview empty state + extras */

.empty-state {

    grid-column: 1 / -1;
    text-align: center;
    padding: 40px 20px;
    color: var(--text-light);
    border: 2px dashed var(--border);
    border-radius: var(--radius);
}

.empty-icon {

    font-size: 2rem;
    margin-bottom: 8px;
}

.preview-item .link-icon {

    padding: 20px;
    text-align: center;
    font-size: 1.5rem;
}

.preview-note {

    grid-column: 1 / -1;
    text-align: center;
    font-size: .85rem;
    color: var(--text-light);
    padding: 8px;
}

/* Use cases */

.use-cases {

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 28px;
    padding: 24px;
}

.use-cases h2 {

    margin-bottom: 16px;
}

.use-cases ul {

    list-style: none;
    display: grid;
    gap: 14px;
}

.use-cases li {

    color: var(--text-light);
    padding-left: 20px;
    position: relative;
}

.use-cases li::before {

    content: "→";
    position: absolute;
    left: 0;
    color: var(--primary);
}

.use-cases code {

    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1px 6px;
    font-size: .85em;
}

/* Toasts */

.toast-container {

    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {

    background: var(--surface);
    border: 1px solid var(--border);
    border-left: 4px solid var(--primary);
    border-radius: 10px;
    box-shadow: var(--shadow);
    padding: 12px 18px;
    font-size: .9rem;
    opacity: 0;
    transform: translateY(10px);
    transition: opacity .25s ease, transform .25s ease;
}

.toast.show {

    opacity: 1;
    transform: translateY(0);
}

.toast.success {

    border-left-color: #16a34a;
}

.toast.error {

    border-left-color: #dc2626;
}

/* Overlay */

.overlay {

    position: fixed;
    inset: 0;
    z-index: 3000;
    background: rgba(0, 0, 0, .5);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.overlay-card {

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    max-width: 420px;
    width: 100%;
}

.shortcut-list {

    list-style: none;
    display: grid;
    gap: 12px;
    margin-top: 8px;
}

.shortcut-list li {

    color: var(--text-light);
    font-size: .9rem;
}

kbd {

    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 2px 7px;
    font-family: Consolas, monospace;
    font-size: .8rem;
    color: var(--text);
}

.main-nav a[aria-current="page"] {

    color: var(--primary);
    font-weight: 600;
}

/* Footer nav */

.footer-nav {

    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 18px;
    margin-bottom: 14px;
}

.footer-nav a {

    color: var(--text-light);
    text-decoration: none;
    font-size: .9rem;
}

.footer-nav a:hover {

    color: var(--primary);
}

/* Content / legal / article pages */

.page {

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin: 28px 0;
    padding: 36px;
    max-width: 820px;
}

.page h1 {

    font-size: 2rem;
    margin-bottom: 8px;
}

.page .updated {

    color: var(--text-light);
    font-size: .85rem;
    margin-bottom: 24px;
}

.page h2 {

    font-size: 1.3rem;
    margin: 28px 0 10px;
}

.page p,
.page li {

    color: var(--text-light);
    margin-bottom: 12px;
}

.page ul,
.page ol {

    padding-left: 22px;
    margin-bottom: 16px;
}

.page a {

    color: var(--primary);
}

/* Blog listing */

.post-list {

    display: grid;
    gap: 18px;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.post-card {

    display: block;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 22px;
    text-decoration: none;
    color: inherit;
    transition: transform .2s ease;
}

.post-card:hover {

    transform: translateY(-3px);
}

.post-card h3 {

    color: var(--text);
    margin-bottom: 8px;
}

.post-card p {

    color: var(--text-light);
    font-size: .92rem;
}

.post-card .date {

    display: block;
    color: var(--text-light);
    font-size: .8rem;
    margin-top: 12px;
}

/* ===== Hero pills ===== */

.hero-pills {

    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 24px;
}

.hero-pill {

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 8px 16px;
    font-size: .85rem;
    color: var(--text-light);
    box-shadow: var(--shadow);
}

.hero-pill code {

    background: var(--background);
    border-radius: 4px;
    padding: 0 4px;
}

/* ===== Toolbars ===== */

.toolbar,
.results-toolbar {

    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 10px;
    margin-top: 16px;
}

.results-toolbar {

    margin-top: 0;
    margin-bottom: 16px;
}

.toolbar .btn-primary {

    padding: 12px 26px;
}

.toolbar .link-btn {

    margin-left: auto;
}

.count-pill {

    background: rgba(37, 99, 235, .1);
    color: var(--primary);
    border-radius: 999px;
    padding: 5px 12px;
    font-size: .82rem;
    font-weight: 600;
}

/* ===== Results list (clickable, scrollable) ===== */

.results-list {

    max-height: 360px;
    overflow-y: auto;
    border: 1px solid var(--border);
    border-radius: 12px;
    background: var(--background);
}

.result-rows {

    list-style: none;
    margin: 0;
    padding: 0;
}

.result-row {

    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 14px;
    border-bottom: 1px solid var(--border);
}

.result-row:last-child {

    border-bottom: none;
}

.result-index {

    flex-shrink: 0;
    width: 28px;
    color: var(--text-light);
    font-size: .8rem;
    font-variant-numeric: tabular-nums;
}

.result-link {

    flex: 1;
    color: var(--primary);
    text-decoration: none;
    font-family: Consolas, monospace;
    font-size: 13px;
    word-break: break-all;
}

.result-link:hover {

    text-decoration: underline;
}

.result-type {

    flex-shrink: 0;
    font-size: .68rem;
    text-transform: uppercase;
    letter-spacing: .04em;
    padding: 3px 8px;
    border-radius: 999px;
    color: var(--text-light);
    background: var(--surface);
    border: 1px solid var(--border);
}

.type-image { color: #16a34a; }
.type-video { color: #9333ea; }

.results-empty {

    padding: 40px 20px;
    text-align: center;
    color: var(--text-light);
    font-size: .95rem;
}

/* ===== Preview scroll ===== */

.preview-scroll {

    max-height: 520px;
    overflow-y: auto;
    margin-top: 4px;
    padding-right: 4px;
}

.preview-grid {

    margin-top: 4px;
}

/* ===== Generic content sections ===== */

.content-section {

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 28px;
    padding: 32px;
}

.content-section h2 {

    font-size: 1.6rem;
    margin-bottom: 10px;
}

.section-lead {

    color: var(--text-light);
    max-width: 720px;
    margin-bottom: 24px;
}

/* Feature grid */

.feature-grid {

    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 18px;
}

.feature-card {

    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 22px;
}

.feature-icon {

    font-size: 1.6rem;
    margin-bottom: 10px;
}

.feature-card h3 {

    font-size: 1.05rem;
    margin-bottom: 6px;
}

.feature-card p {

    color: var(--text-light);
    font-size: .92rem;
}

.feature-card code,
.usecase-card code {

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 1px 5px;
    font-size: .85em;
}

/* Format chips */

.chip-row {

    display: flex;
    flex-wrap: wrap;
    gap: 12px;
}

.format-chip {

    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 12px 18px;
    font-weight: 500;
    font-size: .95rem;
}

/* Steps */

.steps {

    list-style: none;
    display: grid;
    gap: 20px;
    padding: 0;
    margin: 0;
}

.steps li {

    display: flex;
    gap: 16px;
    align-items: flex-start;
}

.step-num {

    flex-shrink: 0;
    width: 38px;
    height: 38px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    font-weight: 700;
}

.steps h3 {

    font-size: 1.05rem;
    margin-bottom: 4px;
}

.steps p {

    color: var(--text-light);
}

/* Use case grid */

.usecase-grid {

    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 18px;
}

.usecase-card {

    background: var(--background);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 22px;
}

.usecase-card h3 {

    font-size: 1.05rem;
    margin-bottom: 8px;
}

.usecase-card p {

    color: var(--text-light);
    font-size: .92rem;
}

/* ===== FAQ accordion ===== */

.faq-item {

    border: 1px solid var(--border);
    border-radius: 12px;
    margin-bottom: 12px;
    padding: 0;
    background: var(--background);
    overflow: hidden;
}

.faq-item summary {

    cursor: pointer;
    list-style: none;
    padding: 18px 22px;
    font-weight: 600;
    font-size: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
}

.faq-item summary::-webkit-details-marker {

    display: none;
}

.faq-item summary::after {

    content: "+";
    font-size: 1.4rem;
    color: var(--primary);
    transition: transform .2s ease;
}

.faq-item[open] summary::after {

    transform: rotate(45deg);
}

.faq-item p {

    padding: 0 22px 20px;
    color: var(--text-light);
    margin: 0;
}

.faq-item code {

    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 5px;
    padding: 1px 5px;
    font-size: .85em;
}

/* ===== Social share ===== */

.share-row {

    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 18px;
}

.share-label {

    color: var(--text-light);
    font-size: .9rem;
    font-weight: 500;
}

.share-btn {

    display: inline-flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 9px 14px;
    font-size: .88rem;
    font-weight: 600;
    color: #fff;
}

.share-btn:hover {

    transform: translateY(-2px);
}

.share-x { background: #000; }
.share-facebook { background: #1877f2; }
.share-reddit { background: #ff4500; }
.share-pinterest { background: #e60023; }
.share-linkedin { background: #0a66c2; }

@media (max-width: 768px) {

    .main-nav {

        display: none;
    }

    .page {

        padding: 24px;
    }

    .content-section {

        padding: 22px;
    }

    .toolbar .link-btn {

        margin-left: 0;
    }
}

::-webkit-scrollbar {

    width: 10px;

    height: 10px;

}

::-webkit-scrollbar-thumb {

    background: var(--border);

    border-radius: 999px;

}

::-webkit-scrollbar-track {

    background: transparent;

}

@media (max-width: 900px) {

    .hero h1 {

        font-size: 2.3rem;

    }

}

@media (max-width: 768px) {

    .hero {

        padding-top: 50px;

    }

    .hero h1 {

        font-size: 2rem;

    }

    .toolbar,
    .results-toolbar {

        flex-direction: column;
        align-items: stretch;

    }

    .section-header {

        flex-direction: column;

        align-items: flex-start;

        gap: 8px;

    }

}

@media (max-width: 480px) {

    .container {

        padding: 0 15px;

    }

    .hero h1 {

        font-size: 1.8rem;

    }

    .tool-card,
    .results-card,
    .preview-card,
    .faq {

        padding: 18px;

    }

}