/* Application shell, tool directory and upload entry state. */
.container {
    width: 100%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
}

.main-content {
    flex: 1;
    padding-top: 32px;
    padding-bottom: 64px;
}

.view-section {
    display: none;
}

.view-section.active {
    display: block;
    animation: none;
}

.navbar {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    backdrop-filter: none;
}

.navbar-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
    height: 64px;
}

.logo-area {
    display: inline-flex;
    align-items: center;
    flex-shrink: 0;
    gap: 8px;
    color: var(--text-primary);
    text-decoration: none;
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -.04em;
}

.logo-icon {
    display: flex;
    align-items: center;
}

.logo-icon svg {
    width: 28px;
    height: 28px;
}

.logo-highlight {
    color: var(--accent);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 40px;
    padding: 8px 12px;
    border: 0;
    border-radius: var(--radius-control);
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--text-small);
    font-weight: 600;
    text-decoration: none;
}

.nav-item:hover,
.nav-item.active {
    color: var(--accent);
    background: var(--surface-selected);
}

.nav-dropdown {
    position: relative;
}

.dropdown-toggle::after {
    content: '';
    width: 6px;
    height: 6px;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    margin: -3px 0 0 4px;
}

.dropdown-toggle[aria-expanded=true]::after {
    transform: rotate(225deg);
    margin-top: 3px;
}

.dropdown-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 224px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    background: var(--surface);
    box-shadow: var(--shadow-popover);
    z-index: var(--z-popover);
}

.nav-dropdown.open>.dropdown-menu {
    display: grid;
}

.dropdown-item {
    display: flex;
    width: 100%;
    padding: 10px 12px;
    border-radius: var(--radius-control);
    white-space: nowrap;
}

.hamburger-btn {
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-control);
}

.hamburger-line {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text-primary);
}

.hamburger-btn[aria-expanded=true] .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger-btn[aria-expanded=true] .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger-btn[aria-expanded=true] .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* Directory: compact editorial header and flat, scannable tool links. */
.hero-section {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 40px;
    text-align: left;
    max-width: none;
    padding: 24px 0 32px;
    margin: 0;
}

.hero-copy {
    max-width: 620px;
}

.hero-eyebrow {
    display: block;
    font-size: clamp(0.5rem, 3vw, 2rem);
    font-weight: 600;
    color: var(--accent);
    margin-bottom: 12px;
}

.hero-section h1 {
    font-size: clamp(1.75rem, 3vw, 2.5rem);
    line-height: 1.2;
    margin: 0 0 16px;
    letter-spacing: -.045em;
    background: none;
    -webkit-text-fill-color: currentColor;
}

.hero-section p {
    font-size: .9375rem;
    line-height: 1.7;
    color: var(--text-secondary);
    margin: 0;
    max-width: 560px;
}

.security-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 8px 14px;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    background: var(--surface);
    color: var(--text-secondary);
    font-size: var(--text-caption);
    line-height: 1.4;
    max-width: 240px;
    flex-shrink: 0;
    margin: 0 0 4px;
    box-shadow: var(--shadow-subtle);
}

.security-badge svg {
    width: 18px;
    height: 18px;
    color: var(--success);
    flex-shrink: 0;
}

.directory-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: center;
    justify-content: space-between;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.tool-search {
    display: flex;
    align-items: center;
    gap: 8px;
    flex: 0 1 280px;
    position: relative;
}

.tool-search svg {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    pointer-events: none;
}

.tool-search input {
    width: 100%;
    padding-left: 40px;
    padding-right: 36px;
    border-color: var(--border);
    border-radius: var(--radius-control);
    background: var(--surface);
    height: 40px;
    font-size: var(--text-small);
    transition: border-color var(--motion-fast), box-shadow var(--motion-fast);
}

.tool-search input:focus {
    border-color: var(--accent);
    outline: 0;
    box-shadow: 0 0 0 3px var(--accent-soft);
}

.search-kbd {
    position: absolute;
    right: 12px;
    padding: 2px 6px;
    font-family: var(--font-mono);
    font-size: 11px;
    font-weight: 500;
    color: var(--text-muted);
    background: var(--surface-dim);
    border: 1px solid var(--border);
    border-radius: 4px;
    pointer-events: none;
    line-height: 1;
}

.category-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 6px;
    justify-content: flex-start;
    margin: 0;
    padding: 0;
}

.category-nav-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 40px;
    padding: 8px 14px;
    gap: 8px;
    border: 1px solid transparent;
    border-radius: var(--radius-control);
    background: transparent;
    color: var(--text-secondary);
    font-size: var(--text-small);
    font-weight: 500;
    box-shadow: none;
    cursor: pointer;
    transition: background-color var(--motion-fast), color var(--motion-fast), border-color var(--motion-fast);
}

.category-nav-btn:hover {
    color: var(--text-primary);
    background: var(--surface-dim);
}

.category-nav-btn.active {
    color: var(--accent);
    background: var(--surface-selected);
    border-color: color-mix(in srgb, var(--accent) 25%, transparent);
    font-weight: 600;
}

.category-nav-btn .cat-count {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 18px;
    height: 18px;
    padding: 0 5px;
    font-size: 11px;
    font-family: var(--font-mono);
    font-weight: 600;
    border-radius: 999px;
    background: var(--border-subtle);
    color: var(--text-secondary);
}

.category-nav-btn.active .cat-count {
    background: var(--accent);
    color: #ffffff;
}

.category-section {
    margin: 36px 0 0;
    animation: none;
}

.category-header {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
    padding: 0;
    border: none;
}

.category-title {
    font-size: var(--text-section);
    font-weight: 700;
    letter-spacing: -0.015em;
}

.category-title svg {
    display: none;
}

.category-desc {
    font-size: var(--text-body);
    color: var(--text-muted);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 1px;
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    background: var(--border);
    overflow: hidden;
}

.tool-card {
    position: relative;
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr) 20px;
    align-content: center;
    align-items: center;
    column-gap: 18px;
    row-gap: 4px;
    padding: 24px 20px;
    background: var(--surface);
    border: 0;
    border-radius: 0;
    box-shadow: none;
    color: var(--text-primary);
    text-decoration: none;
    min-width: 0;
    transition: background-color var(--motion-fast);
}

.tool-card:hover {
    background: var(--surface-dim);
    box-shadow: none;
    transform: none;
    border: 0;
}

.tool-card::before {
    display: none;
}

.tool-card::after {
    content: '→';
    grid-column: 3;
    grid-row: 1 / 3;
    color: var(--border-strong);
    font-size: 1.15rem;
    transition: transform var(--motion-fast), color var(--motion-fast);
}

.tool-card:hover::after {
    transform: translateX(4px);
    color: var(--accent);
}

.tool-card .card-icon {
    grid-column: 1;
    grid-row: 1 / 3;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0;
    padding: 0;
    border-radius: var(--radius-md);
    background: var(--surface-dim);
    color: var(--accent);
    box-shadow: none;
    transition: background-color var(--motion-fast), color var(--motion-fast), transform var(--motion-fast);
}

.tool-card .card-icon svg {
    width: 24px;
    height: 24px;
}

.tool-card:hover .card-icon {
    transform: scale(1.05);
}

/* Preattentive Category Color Anchoring (Anne Treisman Theory) */
.class-organize .tool-card .card-icon {
    background: #e0f2fe;
    color: var(--hue-organize);
}

.class-organize .tool-card:hover .card-icon {
    background: var(--hue-organize);
    color: #ffffff;
}

.class-edit .tool-card .card-icon {
    background: #ede9fe;
    color: var(--hue-edit);
}

.class-edit .tool-card:hover .card-icon {
    background: var(--hue-edit);
    color: #ffffff;
}

.class-convert .tool-card .card-icon {
    background: #ffe4e6;
    color: var(--hue-convert);
}

.class-convert .tool-card:hover .card-icon {
    background: var(--hue-convert);
    color: #ffffff;
}

.class-ai .tool-card .card-icon {
    background: var(--hue-ai-light);
    color: var(--hue-ai);
}

.class-ai .tool-card:hover .card-icon {
    background: var(--hue-ai);
    color: #ffffff;
}

.tool-card h3 {
    grid-column: 2;
    font-size: 1.0625rem;
    font-weight: 700;
    margin: 0 0 4px;
    line-height: 1.3;
    letter-spacing: -0.01em;
}

.tool-card p {
    grid-column: 2;
    margin: 0;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.55;
    max-width: 48ch;
}

.tool-card .badge-pro-card {
    display: none;
}

.class-ai {
    grid-template-columns: 1fr;
}

.tool-card.card-pro {
    background: var(--surface);
    border: 0;
    box-shadow: none;
}

.tool-card.card-pro:hover {
    background: var(--surface-selected);
}

.directory-empty {
    text-align: center;
    padding: 48px 24px;
    color: var(--text-secondary);
}

.directory-empty h2 {
    margin-bottom: 8px;
}

.directory-empty button {
    margin-top: 16px;
}

/* Reusable tool entry state. */
#view-workspace>.workspace-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin: 0 auto 24px;
    max-width: var(--workspace-width);
    text-align: left;
}

.workspace-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    flex-shrink: 0;
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    background: var(--surface);
    color: var(--accent);
    font-size: 1.5rem;
}

.workspace-icon svg {
    width: 24px;
    height: 24px;
}

.workspace-header p {
    margin-top: 8px;
    font-size: var(--text-body);
    color: var(--text-secondary);
    max-width: 65ch;
}

.tool-steps {
    display: flex;
    align-items: center;
    gap: 24px;
    list-style: none;
    margin: 0 auto 24px;
    padding: 0;
    max-width: var(--workspace-width);
}

.tool-steps li {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: var(--text-small);
    white-space: nowrap;
}

.tool-steps li::before {
    content: attr(data-step);
    display: grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border: 1px solid var(--border);
    border-radius: 50%;
    font-size: var(--text-caption);
}

.tool-steps [aria-current=step] {
    color: var(--accent);
    font-weight: 600;
}

.tool-steps [aria-current=step]::before {
    background: var(--accent);
    border-color: var(--accent);
    color: var(--surface);
}

.tool-steps .is-complete::before {
    content: '✓';
    color: var(--accent);
    background: var(--surface-selected);
}

.upload-container {
    width: 100%;
    max-width: var(--workspace-width);
    margin: 0 auto;
    padding: 48px 24px;
    text-align: center;
    background: var(--surface);
    border: 1px dashed var(--border-strong);
    border-radius: var(--radius-card);
    box-shadow: none;
    cursor: pointer;
    transition: border-color var(--motion-fast), background-color var(--motion-fast);
}

.upload-container:hover,
.upload-container.dragover {
    border-color: var(--accent-bright);
    background: var(--surface-selected);
    transform: none;
    box-shadow: none;
}

.upload-illustration {
    display: flex;
    justify-content: center;
    color: var(--accent);
    margin: 0 auto 20px;
}

.upload-illustration svg {
    width: 40px;
    height: 40px;
}

.upload-container h3 {
    margin-bottom: 8px;
    font-size: var(--text-section);
    font-weight: 600;
}

.upload-container>p {
    color: var(--text-muted);
    font-size: var(--text-small);
    margin: 8px 0 16px;
}

.upload-container .upload-tip {
    margin: 16px 0 0;
    font-size: var(--text-small);
}

.file-input-hidden {
    display: none;
}

.security-banner {
    display: flex;
    align-items: flex-start;
    gap: 8px;
    max-width: var(--workspace-width);
    margin: 16px auto 24px;
    padding: 0;
    border: 0;
    border-radius: 0;
    background: none;
    color: var(--text-muted);
    font-size: var(--text-caption);
    line-height: 1.7;
}

.security-banner svg {
    margin-top: 3px;
}

.security-banner strong {
    font-weight: 500;
}

.compress-mode-toggle {
    margin: 0 0 16px;
}

.footer {
    margin: 0;
    padding: 24px 0;
    border-top: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    font-size: var(--text-caption);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    text-align: left;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
}

.footer-links a,
.footer-support {
    font: inherit;
    color: var(--text-secondary);
    text-decoration: none;
    border: 0;
    background: none;
    padding: 4px 0;
}

.footer-links a:hover,
.footer-support:hover {
    color: var(--accent);
    text-decoration: underline;
}

/* Donation remains available from the footer, clear of document controls. */
#donate-fab {
    display: none;
}

.donate-header {
    background: var(--surface);
}

.donate-header-icon {
    display: none;
}

.donate-modal {
    transform: none;
}

/* Legal and contact routes share the same application shell. */
.legal-content {
    max-width: 800px;
    margin: 0 auto;
    padding-top: 40px;
    padding-bottom: 64px;
}

.legal-content h1 {
    margin: 20px 0 16px;
}

.legal-content h2 {
    margin: 32px 0 12px;
}

.legal-content p {
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.legal-content ul,
.legal-content ol {
    padding-left: 24px;
    margin-bottom: 16px;
}

.legal-content .lang-toggle {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
}

.legal-content .lang-btn {
    min-height: 40px;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-control);
    color: var(--text-secondary);
    background: var(--surface);
}

.legal-content .lang-btn.active {
    color: var(--accent);
    background: var(--surface-selected);
}

.legal-content .lang-content {
    display: none;
}

.legal-content .lang-content.active-lang {
    display: block;
}

.legal-content .contact-card {
    padding: 24px 0;
    border-top: 1px solid var(--border);
}

.contact-item {
    display: flex;
    gap: 16px;
    margin-bottom: 24px;
}

.contact-item strong {
    display: block;
    margin-bottom: 4px;
}

.contact-item svg {
    color: var(--accent);
}

@media (max-width: 960px) {
    .navbar-container {
        gap: 16px;
    }

    .nav-links {
        gap: 0;
    }

    .category-desc {
        display: none;
    }
}

@media (max-width: 768px) {
    .container {
        padding-left: 20px;
        padding-right: 20px;
    }

    .main-content {
        padding-top: 24px;
        padding-bottom: 40px;
    }

    .navbar-container {
        height: 60px;
    }

    .hamburger-btn {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        padding: 12px 20px 20px;
        background: var(--surface);
        border-bottom: 1px solid var(--border);
        max-height: calc(100dvh - 60px);
        overflow-y: auto;
        box-shadow: var(--shadow-popover);
    }

    .nav-links.open {
        display: flex;
        flex-direction: column;
        align-items: stretch;
    }

    .nav-item {
        width: 100%;
        min-height: 44px;
        justify-content: space-between;
    }

    .dropdown-menu {
        position: static;
        padding: 0 0 8px 12px;
        border: 0;
        border-radius: 0;
        min-width: 0;
        box-shadow: none;
        background: transparent;
    }

    .dropdown-item {
        justify-content: flex-start;
    }

    .hero-section {
        display: block;
        padding: 8px 0 24px;
    }

    .hero-section p {
        font-size: var(--text-body);
    }

    .security-badge {
        max-width: none;
        margin: 20px 0 0;
    }

    .directory-controls {
        gap: 12px;
        padding-bottom: 16px;
    }

    .tool-search {
        order: -1;
        flex-basis: 100%;
    }

    .category-nav {
        display: flex;
        flex-wrap: nowrap;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        gap: 6px;
        width: 100%;
        padding: 2px 0 6px;
    }

    .category-nav::-webkit-scrollbar {
        display: none;
    }

    .category-nav-btn {
        flex-shrink: 0;
        white-space: nowrap;
        min-height: 40px;
        padding: 6px 12px;
        font-size: 0.8125rem;
    }

    .category-nav-btn .cat-count {
        display: inline-flex;
    }

    .category-section {
        margin-top: 24px;
    }

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

    .tool-card {
        padding: 18px 14px;
        column-gap: 14px;
    }

    .tool-card .card-icon {
        width: 40px;
        height: 40px;
        border-radius: var(--radius-sm);
    }

    .tool-card .card-icon svg {
        width: 20px;
        height: 20px;
    }

    #view-workspace>.workspace-header {
        gap: 12px;
        align-items: flex-start;
        margin-bottom: 20px;
    }

    .workspace-icon {
        width: 40px;
        height: 40px;
    }

    .tool-steps {
        gap: 16px;
        justify-content: space-between;
        margin-bottom: 20px;
    }

    .tool-steps li {
        flex-direction: column;
        gap: 4px;
        font-size: var(--text-caption);
    }

    .upload-container {
        padding: 32px 16px;
    }

    .upload-container .btn-primary {
        min-width: 168px;
    }

    .footer-container {
        display: block;
    }

    .footer-links {
        margin-top: 12px;
        gap: 8px 16px;
    }

    .footer-links a,
    .footer-support {
        min-height: 44px;
        display: flex;
        align-items: center;
    }
}

@media (max-width: 360px) {
    .container {
        padding-left: 16px;
        padding-right: 16px;
    }

    .tool-steps {
        gap: 8px;
    }

    .workspace-icon {
        display: none;
    }

    .tool-card {
        grid-template-columns: 32px minmax(0, 1fr) 12px;
        padding: 16px 12px;
        gap: 4px 12px;
    }

    .tool-card .card-icon {
        width: 32px;
    }
}

.legal-content span.lang-content.active-lang {
    display: inline;
}

.legal-content .header-area {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.legal-content .highlight-box {
    padding: 20px;
    border-left: 3px solid var(--accent);
    background: var(--surface-selected);
    margin: 24px 0;
}