:root {
    --container-width: 1000px;
    --card-hover: 0 16px 48px rgba(0,0,0,.12);
}

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: var(--font);
    line-height: 1.6;
}

.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 2rem;
}

.hero {
    padding: 6rem 0 4rem;
    text-align: center;
    background: radial-gradient(circle at 50% 100%, #fef8eb, var(--bg));
    border-bottom: 1px solid var(--border);
    margin-bottom: 3rem;
}

.hero__title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--clr-primary);
    margin-bottom: 1rem;
}

.hero__tagline {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.hero__badges {
    display: flex;
    justify-content: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.badge {
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text);
    box-shadow: var(--shadow);
}

.badge--merge { background: #f5c652; border-color: #e0b13e; color: #141414; }
.badge--split { background: #97cddb; border-color: #6fb5c8; color: #141414; }
.badge--rotate { background: #d0603c; border-color: #b05030; color: #fff; }

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2.5rem;
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    box-shadow: var(--shadow);
}

.tool-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
    text-decoration: none;
}

.tool-card--pdf {
    --card-accent: #f5c652;
}

.tool-card--qr {
    --card-accent: #97cddb;
}

.tool-card--image {
    --card-accent: #7ed321;
}

.tool-card--mermaid {
    --card-accent: #ffb86c;
}

.tool-card--quiz {
    --card-accent: #e21b3c;
}

.tool-card--tts {
    --card-accent: #c9a0dc;
}

.tool-card__icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: var(--bg);
    color: var(--card-accent, var(--text));
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    border: 2px solid var(--card-accent, transparent);
}

.tool-card__title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--clr-primary);
}

.tool-card:hover .tool-card__title {
    color: var(--card-accent);
}
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--clr-primary);
}

.tool-card__desc {
    color: var(--text-muted);
}

.privacy-statement {
    background: var(--bg-card);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius);
    padding: 3rem;
    margin-bottom: 4rem;
    box-shadow: var(--shadow);
}

.privacy-statement h2 {
    font-size: 2rem;
    margin-bottom: 2.5rem;
    text-align: center;
}

.privacy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 3rem;
}

.privacy-item h3 {
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
    color: var(--clr-primary);
}

.privacy-item p {
    color: var(--text-muted);
}

.footer {
    text-align: center;
    padding: 4rem 0;
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.875rem;
}

@media (max-width: 640px) {
    .hero__title {
        font-size: 2.5rem;
    }
    .hero {
        padding: 4rem 0 3rem;
    }
}