@import url('/common/css/site.css');

.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;
}

/* ============ Hero ============ */
.hub-hero {
    text-align: center;
    padding: 3.5rem 2rem 2.5rem;
    max-width: 820px;
    margin: 0 auto;
}

.hub-hero-eyebrow {
    color: var(--accent-primary);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    margin-bottom: 1rem;
}

.hub-hero h1 {
    font-size: clamp(2.2rem, 5vw, 3.4rem);
    line-height: 1.1;
    margin-bottom: 1rem;
}

.hub-hero .header-description {
    max-width: 640px;
    margin: 0 auto 1.5rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* Hero trust indicators */
.hero-trust {
    list-style: none;
    padding: 0;
    margin: 0 auto 2rem;
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1.5rem;
}

.hero-trust li {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.88rem;
    color: var(--text-muted);
    font-weight: 500;
}

.hero-trust li::before {
    content: '✓';
    color: var(--accent-primary);
    font-weight: 700;
}

/* Hero search bar */
.hero-search-wrapper {
    max-width: 560px;
    margin: 0 auto 1.5rem;
}

.hero-search-wrapper input {
    width: 100%;
    min-height: 56px;
    padding: 1rem 1.25rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 1.05rem;
    transition: border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.hero-search-wrapper input::placeholder {
    color: var(--text-muted);
}

.hero-search-wrapper input:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(0, 212, 170, 0.05);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.12);
}

/* Hero quick-action chips */
.hero-quick-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.6rem;
}

.quick-action-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.55rem 1.1rem;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.quick-action-chip:hover {
    transform: translateY(-2px);
    border-color: var(--accent-primary);
    background: rgba(0, 212, 170, 0.08);
    box-shadow: 0 4px 16px rgba(0, 212, 170, 0.15);
}

/* ============ Recently used / Popular sections ============ */
.recently-used,
.popular-tools {
    margin: 2.5rem 0;
}

.section-heading {
    margin-bottom: 1.5rem;
}

.section-heading h2 {
    font-size: clamp(1.8rem, 3vw, 2.5rem);
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.section-heading p:last-child {
    max-width: 760px;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
}

.section-label {
    display: inline-block;
    margin-bottom: 0.85rem;
    color: var(--accent-primary);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.recently-used-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 1rem;
}

.recent-link {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    min-height: 72px;
    padding: 1rem 1.1rem;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    text-decoration: none;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.recent-link:hover {
    transform: translateY(-3px);
    border-color: var(--border-accent);
    box-shadow: var(--glow-accent);
    background: var(--bg-card-hover);
}

.recent-link-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 14px;
    background: rgba(0, 212, 170, 0.12);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.recent-link-text {
    font-size: 1rem;
    font-weight: 600;
}

/* ============ Popular tool cards (rich format) ============ */
.popular-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.popular-tool-card {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.15rem 1.25rem;
    border-radius: var(--radius-lg);
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    color: var(--text-primary);
    text-decoration: none;
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.popular-tool-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-accent);
    box-shadow: var(--glow-accent);
    background: var(--bg-card-hover);
}

.ptc-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 14px;
    background: rgba(0, 212, 170, 0.12);
    font-size: 1.4rem;
    flex-shrink: 0;
}

.ptc-body {
    flex: 1;
    min-width: 0;
}

.ptc-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.2rem;
}

.ptc-name {
    font-size: 1rem;
    font-weight: 700;
}

.ptc-desc {
    font-size: 0.88rem;
    color: var(--text-secondary);
    line-height: 1.5;
    margin: 0;
}

.ptc-cta {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--accent-primary);
    white-space: nowrap;
    flex-shrink: 0;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.popular-tool-card:hover .ptc-cta {
    opacity: 1;
}

/* ============ Tool controls (search + tabs) — sticky ============ */
.tool-controls {
    position: sticky;
    top: 60px;
    z-index: 40;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin: 2rem 0 2.5rem;
    padding: 1rem;
    background: rgba(15, 15, 18, 0.88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.search-wrapper input {
    width: 100%;
    min-height: 52px;
    padding: 0.95rem 1.1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    transition: border-color 0.2s ease, background 0.2s ease;
}

.search-wrapper input::placeholder { color: var(--text-muted); }

.search-wrapper input:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(0, 212, 170, 0.05);
}

.category-tabs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tab {
    min-height: 48px;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-family: 'Outfit', sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.25s ease;
}

.tab:hover {
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.18);
    background: rgba(255, 255, 255, 0.09);
}

.tab.active {
    border-color: transparent;
    background: var(--accent-gradient);
    color: #000;
    box-shadow: 0 10px 24px rgba(0, 212, 170, 0.18);
}

/* ============ Empty state ============ */
.empty-state {
    margin: 0 0 2rem;
    padding: 2rem;
    text-align: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px dashed rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
}

.empty-state h2 {
    font-size: 1.4rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.empty-state p { color: var(--text-secondary); }

/* ============ Tool groups ============ */
.tool-group {
    margin: 0 0 4rem;
}

.tool-group[hidden],
.hub-link-card[hidden],
.empty-state[hidden],
.recently-used[hidden] {
    display: none !important;
}

.tool-group-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.tool-group-header h2 {
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    color: var(--text-primary);
    margin-bottom: 0.65rem;
}

.tool-group-header p:last-child {
    max-width: 760px;
    color: var(--text-secondary);
    font-size: 1.02rem;
    line-height: 1.7;
}

/* Category accent borders */
.tool-group[data-category="organize"] .tool-group-header { border-left: 4px solid #00d4aa; padding-left: 1rem; }
.tool-group[data-category="convert"]  .tool-group-header { border-left: 4px solid #00b4d8; padding-left: 1rem; }
.tool-group[data-category="edit"]     .tool-group-header { border-left: 4px solid #7b68ee; padding-left: 1rem; }
.tool-group[data-category="optimize"] .tool-group-header { border-left: 4px solid #ffd93d; padding-left: 1rem; }
.tool-group[data-category="secure"]   .tool-group-header { border-left: 4px solid #ff6b6b; padding-left: 1rem; }

/* ============ Hub link cards ============ */
.hub-link-card {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    text-decoration: none;
    color: var(--text-primary);
    transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.hub-link-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-accent);
    box-shadow: var(--glow-accent);
    background: var(--bg-card-hover);
}

.hub-link-card h2 {
    font-size: 1.15rem;
    color: var(--text-primary);
    margin: 0;
}

.hub-link-card h2::after {
    content: ' \2192';
    opacity: 0;
    transition: opacity 0.2s ease;
}

.hub-link-card:hover h2::after {
    opacity: 1;
}

.hub-link-card .tool-description {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
}

/* Card meta (badges + time) */
.card-meta {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    margin-bottom: 0.25rem;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.badge-popular {
    background: rgba(0, 212, 170, 0.15);
    color: var(--accent-primary);
}

.tool-time {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-weight: 500;
}

.tool-use-case {
    font-size: 0.82rem;
    color: var(--text-muted);
    font-style: italic;
    margin: 0;
}

.tools-container {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

/* ============ Workflow Discovery ============ */
.workflow-discovery {
    margin: 3rem 0;
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.workflow-discovery h2 {
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.workflow-intro {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 2rem;
    max-width: 600px;
}

.workflow-flows {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

.workflow-flow {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    transition: border-color 0.2s ease;
}

.workflow-flow:hover {
    border-color: var(--border-accent);
}

.workflow-flow h3 {
    font-size: 1.1rem;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.flow-steps {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 0.35rem;
    counter-reset: flow;
}

.flow-steps li {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    counter-increment: flow;
}

.flow-steps li::before {
    content: counter(flow);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: rgba(0, 212, 170, 0.15);
    color: var(--accent-primary);
    font-size: 0.72rem;
    font-weight: 700;
    flex-shrink: 0;
}

.flow-steps a {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: color 0.15s ease;
}

.flow-steps a:hover {
    color: var(--accent-primary);
}

.flow-arrow {
    color: var(--text-muted);
    font-size: 0.85rem;
    margin: 0 0.15rem;
}

/* ============ Privacy deep-dive ============ */
.privacy-deep-dive {
    margin: 3rem 0;
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.privacy-deep-dive h2 {
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.privacy-deep-dive .privacy-intro {
    max-width: 720px;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 2rem;
}

.privacy-points {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.privacy-point {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.privacy-point strong {
    display: block;
    color: var(--text-primary);
    font-size: 1.05rem;
    margin-bottom: 0.5rem;
}

.privacy-point p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.65;
    margin: 0;
}

.privacy-details {
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
}

.privacy-details summary {
    cursor: pointer;
    color: var(--accent-primary);
    font-weight: 600;
    font-size: 0.95rem;
}

.privacy-details p {
    margin-top: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.7;
}

.privacy-details a {
    color: var(--accent-primary);
}

/* ============ Educational / SEO ============ */
.educational {
    margin: 3rem 0;
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.educational h2 {
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.edu-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.25rem;
}

.edu-block {
    padding: 1.5rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
}

.edu-block h3 {
    font-size: 1.05rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.edu-block p {
    color: var(--text-secondary);
    font-size: 0.92rem;
    line-height: 1.65;
    margin: 0;
}

/* ============ Hub FAQ ============ */
.hub-faq {
    margin: 3rem 0;
    padding: 3rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.hub-faq h2 {
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    color: var(--text-primary);
    margin-bottom: 2rem;
}

.hub-faq-item {
    margin-bottom: 0.75rem;
    background: var(--bg-card);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 1rem 1.25rem;
    transition: border-color 0.2s ease;
}

.hub-faq-item[open] {
    border-color: var(--border-accent);
}

.hub-faq-item summary {
    cursor: pointer;
    color: var(--text-primary);
    font-weight: 600;
    font-size: 1rem;
    line-height: 1.5;
}

.hub-faq-item p {
    margin-top: 0.75rem;
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.7;
}

/* ============ Hub footer ============ */
.hub-footer {
    border-top: 1px solid var(--border-subtle);
    padding: 3rem 2rem 2rem;
    margin-top: 2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto 2.5rem;
}

.footer-col h4 {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.footer-col h4 + h4 {
    margin-top: 1.5rem;
}

.footer-col nav {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

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

.footer-col nav a:hover {
    color: var(--accent-primary);
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.88rem;
    margin-bottom: 0.25rem;
}

/* ============ Animation staggering ============ */
.tools-container .hub-link-card:nth-child(1) { animation-delay: 0.05s; }
.tools-container .hub-link-card:nth-child(2) { animation-delay: 0.1s; }
.tools-container .hub-link-card:nth-child(3) { animation-delay: 0.15s; }
.tools-container .hub-link-card:nth-child(4) { animation-delay: 0.2s; }
.tools-container .hub-link-card:nth-child(5) { animation-delay: 0.25s; }

/* ============ Responsive ============ */
@media (max-width: 768px) {
    .hub-hero {
        padding: 2.5rem 1.25rem 2rem;
    }

    .hero-trust {
        flex-direction: column;
        align-items: center;
        gap: 0.35rem;
    }

    .hero-quick-actions {
        gap: 0.5rem;
    }

    .quick-action-chip {
        font-size: 0.82rem;
        padding: 0.45rem 0.85rem;
    }

    .recently-used,
    .popular-tools {
        margin: 2rem 0;
    }

    .popular-grid {
        grid-template-columns: 1fr;
    }

    .recently-used-links {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .tool-controls {
        top: 56px;
        gap: 0.85rem;
        padding: 0.85rem;
    }

    .category-tabs {
        overflow-x: auto;
        flex-wrap: nowrap;
        padding-bottom: 0.25rem;
    }

    .tab {
        flex: 0 0 auto;
    }

    .tools-container {
        grid-template-columns: 1fr;
    }

    .workflow-flows {
        grid-template-columns: 1fr;
    }

    .edu-grid {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 480px) {
    .recently-used-links {
        grid-template-columns: 1fr;
    }

    .hero-search-wrapper input {
        min-height: 50px;
        font-size: 0.95rem;
    }

    .search-wrapper input {
        min-height: 48px;
    }

    .tab {
        min-height: 46px;
        padding: 0.7rem 0.95rem;
    }

    .privacy-points {
        grid-template-columns: 1fr;
    }

    .flow-steps {
        flex-direction: column;
        align-items: flex-start;
    }

    .flow-arrow {
        display: none;
    }
}