:root {
    --app-bg: #f7f8fc;
    --app-card: rgba(255, 255, 255, 0.92);
    --app-border: rgba(24, 33, 65, 0.09);
    --app-text: #182141;
    --app-muted: #667085;
    --app-primary: #5b5ce2;
    --app-primary-dark: #3f3fbf;
    --app-accent: #ff5a72;
    --app-shadow: 0 20px 60px rgba(20, 24, 57, 0.12);
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100vh;
    color: var(--app-text);
    background:
        radial-gradient(circle at top left, rgba(91, 92, 226, 0.16), transparent 34rem),
        radial-gradient(circle at top right, rgba(255, 90, 114, 0.14), transparent 30rem),
        var(--app-bg);
}

.app-navbar {
    backdrop-filter: blur(16px);
    background: rgba(255, 255, 255, 0.78);
    border-bottom: 1px solid var(--app-border);
}

.brand-mark {
    width: 42px;
    height: 42px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    color: #fff;
    background: linear-gradient(135deg, var(--app-primary), var(--app-accent));
    box-shadow: 0 12px 30px rgba(91, 92, 226, 0.28);
}

.hero {
    padding: 72px 0 44px;
}

.hero-title {
    max-width: 860px;
    font-weight: 800;
    letter-spacing: -0.04em;
}

.hero-subtitle {
    max-width: 760px;
    color: var(--app-muted);
    font-size: 1.1rem;
}

.glass-card {
    background: var(--app-card);
    border: 1px solid var(--app-border);
    border-radius: 28px;
    box-shadow: var(--app-shadow);
}

.tool-card {
    position: relative;
    display: block;
    min-height: 260px;
    overflow: hidden;
    transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
}

.tool-card:hover,
.tool-card:focus-visible {
    transform: translateY(-4px);
    border-color: rgba(91, 92, 226, 0.28);
    box-shadow: 0 24px 70px rgba(20, 24, 57, 0.16);
}

.tool-card h3 {
    color: var(--app-dark);
}

.tool-card:hover h3,
.tool-card:focus-visible h3 {
    color: var(--app-primary);
}

.tool-card:focus-visible {
    outline: 3px solid rgba(91, 92, 226, 0.22);
    outline-offset: 3px;
}

.tool-icon {
    width: 58px;
    height: 58px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    color: #fff;
    font-size: 1.55rem;
    box-shadow: 0 14px 28px rgba(20, 24, 57, 0.14);
}

.tool-card::after {
    content: '';
    position: absolute;
    right: -52px;
    top: -52px;
    width: 130px;
    height: 130px;
    border-radius: 999px;
    background: rgba(91, 92, 226, 0.08);
}

.upload-panel {
    max-width: 900px;
    margin-inline: auto;
}

.drop-zone {
    border: 2px dashed rgba(91, 92, 226, 0.28);
    border-radius: 24px;
    padding: 36px;
    background: rgba(91, 92, 226, 0.035);
    transition: border-color 180ms ease, background 180ms ease;
}

.drop-zone:hover,
.drop-zone.dragging {
    border-color: var(--app-primary);
    background: rgba(91, 92, 226, 0.075);
}

.file-list {
    min-height: 42px;
}

.file-pill {
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: space-between;
    padding: 10px 12px;
    border: 1px solid var(--app-border);
    border-radius: 14px;
    background: #fff;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    display: inline-block;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, #5b5ce2, #7c3aed);
}

.bg-gradient-success {
    background: linear-gradient(135deg, #10b981, #14b8a6);
}

.bg-gradient-danger {
    background: linear-gradient(135deg, #ef4444, #ff5a72);
}

.bg-gradient-warning {
    background: linear-gradient(135deg, #f59e0b, #f97316);
}

.bg-gradient-dark {
    background: linear-gradient(135deg, #111827, #475467);
}

.bg-gradient-secondary {
    background: linear-gradient(135deg, #64748b, #94a3b8);
}

.bg-gradient-info {
    background: linear-gradient(135deg, #06b6d4, #3b82f6);
}

.btn-app {
    --bs-btn-bg: var(--app-primary);
    --bs-btn-border-color: var(--app-primary);
    --bs-btn-hover-bg: var(--app-primary-dark);
    --bs-btn-hover-border-color: var(--app-primary-dark);
    --bs-btn-color: #fff;
    --bs-btn-hover-color: #fff;
    border-radius: 14px;
    padding-inline: 1.2rem;
}

.btn-soft {
    border: 1px solid var(--app-border);
    border-radius: 14px;
    background: #fff;
}

.table-capability td,
.table-capability th {
    vertical-align: middle;
}

.footer {
    color: var(--app-muted);
}

@media (max-width: 768px) {
    .hero {
        padding-top: 42px;
    }

    .drop-zone {
        padding: 24px;
    }
}


.tools-dropdown {
    width: min(980px, calc(100vw - 2rem));
    border: 1px solid var(--app-border);
    border-radius: 22px;
    box-shadow: var(--app-shadow);
}

.tools-dropdown-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
    max-height: min(72vh, 720px);
    overflow: auto;
}

.tools-dropdown-title {
    margin-bottom: 8px;
    color: var(--app-muted);
    font-size: 0.78rem;
    font-weight: 800;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.tools-dropdown-item {
    display: grid;
    grid-template-columns: 38px minmax(0, 1fr);
    gap: 10px;
    align-items: flex-start;
    padding: 10px;
    border-radius: 14px;
    color: var(--app-text);
    text-decoration: none;
}

.tools-dropdown-item:hover,
.tools-dropdown-item:focus-visible {
    background: rgba(91, 92, 226, 0.07);
    color: var(--app-primary);
    outline: none;
}

.tools-dropdown-item strong,
.tools-dropdown-item small {
    display: block;
}

.tools-dropdown-item small {
    margin-top: 2px;
    color: var(--app-muted);
    font-size: 0.82rem;
    line-height: 1.35;
}

.tools-dropdown-icon {
    width: 38px;
    height: 38px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    color: #fff;
}

@media (max-width: 992px) {
    .tools-dropdown-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 576px) {
    .tools-dropdown {
        width: calc(100vw - 1rem);
    }

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

.language-switch .btn {
    min-width: 42px;
    font-weight: 700;
}