/* PDF Tools Service - Common Styles */

:root {
    --bg-primary: #0f0f13;
    --bg-secondary: #1a1a24;
    --bg-card: #22223a;
    --bg-card-hover: #2a2a48;
    --text-primary: #e8e8f0;
    --text-secondary: #9a9ab0;
    --accent: #6c63ff;
    --accent-hover: #7b73ff;
    --accent-glow: rgba(108, 99, 255, 0.3);
    --border: #2e2e48;
    --radius: 12px;
    --shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
}

a {
    color: var(--accent);
    text-decoration: none;
    transition: color 0.2s;
}

a:hover {
    color: var(--accent-hover);
}

/* Header */
.site-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
}

.site-header .container {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.site-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
}

.site-logo:hover {
    color: var(--text-primary);
}

.site-logo .icon {
    font-size: 1.5rem;
}

.site-logo svg {
    color: var(--accent);
    flex-shrink: 0;
}

.site-nav a {
    color: var(--text-secondary);
    margin-left: 1.5rem;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.site-nav a:hover {
    color: var(--text-primary);
}

/* Main */
.main-content {
    max-width: 1200px;
    margin: 0 auto;
    padding: 3rem 2rem;
    position: relative;
    z-index: 1;
}

/* Hero */
.hero {
    text-align: center;
    margin-bottom: 4rem;
}

.hero h1 {
    font-size: 2.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
    background: linear-gradient(135deg, var(--text-primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

.hero .badge {
    display: inline-block;
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 20px;
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
    margin-bottom: 1.5rem;
}

/* Tool Cards Grid */
.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.5rem;
}

.tool-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem;
    transition: all 0.3s ease;
    cursor: pointer;
    display: block;
    color: inherit;
}

.tool-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
    color: inherit;
}

.tool-card .tool-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.tool-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.tool-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.5;
}

.tool-card .tool-tag {
    display: inline-block;
    background: rgba(108, 99, 255, 0.15);
    color: var(--accent);
    border-radius: 6px;
    padding: 0.2rem 0.5rem;
    font-size: 0.75rem;
    margin-top: 1rem;
}

/* Features Section */
.features {
    margin-top: 5rem;
    text-align: center;
}

.features h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 2.5rem;
    background: linear-gradient(135deg, var(--text-primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.feature-item {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 2rem 1.5rem;
    text-align: left;
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1rem;
}

.feature-item h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.feature-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Footer */
.footer-content {
    max-width: 1200px;
    margin: 0 auto;
}

.site-footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 2rem;
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 4rem;
    position: relative;
    z-index: 1;
}

/* Tool Page Layout */
.tool-page {
    max-width: 800px;
    margin: 0 auto;
    padding: 3rem 2rem;
    text-align: center;
}

.tool-page h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
}

.tool-page .description {
    color: var(--text-secondary);
    margin-bottom: 2rem;
    font-size: 1.05rem;
}

.coming-soon {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 3rem 2rem;
    margin-top: 2rem;
}

.coming-soon h2 {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 0.75rem;
}

.coming-soon p {
    color: var(--text-secondary);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.back-link:hover {
    color: var(--text-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 1.75rem;
    }

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

    .site-header .container {
        flex-direction: column;
        gap: 0.75rem;
    }

    .main-content {
        padding: 2rem 1rem;
    }
}