/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Helvetica Neue', sans-serif;
    line-height: 1.7;
    color: #e4e4e7;
    background: linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);
    min-height: 100vh;
    padding: 2rem 1rem;
}

/* Container */
.container {
    max-width: 900px;
    margin: 0 auto;
    background: rgba(30, 30, 46, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    padding: 3rem;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(139, 92, 246, 0.1);
}

/* Header */
.header {
    border-bottom: 2px solid rgba(139, 92, 246, 0.2);
    padding-bottom: 2rem;
    margin-bottom: 3rem;
}

.header h1 {
    font-size: 2.5rem;
    background: linear-gradient(135deg, #8b5cf6 0%, #06b6d4 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.last-updated {
    color: #a1a1aa;
    font-size: 0.95rem;
    font-style: italic;
}

/* Back Link */
.back-link {
    display: inline-block;
    color: #8b5cf6;
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 1rem;
    transition: all 0.3s ease;
}

.back-link:hover {
    color: #06b6d4;
    transform: translateX(-5px);
}

/* Content */
.content {
    color: #d4d4d8;
}

section {
    margin-bottom: 3rem;
}

h2 {
    color: #f4f4f5;
    font-size: 1.75rem;
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid rgba(139, 92, 246, 0.2);
}

h3 {
    color: #e4e4e7;
    font-size: 1.35rem;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
}

h4 {
    color: #d4d4d8;
    font-size: 1.1rem;
    margin-top: 1rem;
    margin-bottom: 0.5rem;
    font-weight: 600;
}

p {
    margin-bottom: 1rem;
}

/* Lists */
ul, ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

ul li, ol li {
    margin-bottom: 0.5rem;
    color: #d4d4d8;
}

/* Links */
a {
    color: #06b6d4;
    text-decoration: none;
    transition: color 0.3s ease;
}

a:hover {
    color: #8b5cf6;
    text-decoration: underline;
}

/* Plan Cards */
.plan-card {
    background: rgba(59, 59, 77, 0.4);
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.plan-card h3 {
    margin-top: 0;
    color: #8b5cf6;
    border-bottom: none;
}

/* Service Cards */
.service-card {
    background: rgba(59, 59, 77, 0.3);
    border-left: 3px solid #8b5cf6;
    padding: 1.25rem;
    margin-bottom: 1.25rem;
    border-radius: 8px;
}

.service-card strong {
    display: block;
    color: #06b6d4;
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
}

.service-card ul {
    margin-left: 1rem;
    margin-bottom: 0;
}

/* Notice Boxes */
.notice {
    background: rgba(139, 92, 246, 0.1);
    border: 2px solid rgba(139, 92, 246, 0.3);
    border-radius: 12px;
    padding: 1.5rem;
    margin: 2rem 0;
}

.notice p {
    margin-bottom: 0;
    color: #e4e4e7;
}

.notice strong {
    color: #f4f4f5;
}

/* Footer */
.footer {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px solid rgba(139, 92, 246, 0.2);
    text-align: center;
}

/* Code and Strong */
code {
    background: rgba(59, 59, 77, 0.5);
    padding: 0.2rem 0.4rem;
    border-radius: 4px;
    font-family: 'Monaco', 'Courier New', monospace;
    font-size: 0.9em;
    color: #06b6d4;
}

strong {
    color: #f4f4f5;
    font-weight: 600;
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding: 1rem 0.5rem;
    }

    .container {
        padding: 2rem 1.5rem;
        border-radius: 16px;
    }

    .header h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.5rem;
    }

    h3 {
        font-size: 1.2rem;
    }

    h4 {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 1.5rem 1rem;
    }

    .header h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.35rem;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
        color: black;
    }

    .container {
        background: white;
        box-shadow: none;
        border: none;
    }

    .back-link {
        display: none;
    }

    .header h1 {
        -webkit-text-fill-color: black;
        color: black;
    }

    a {
        color: black;
        text-decoration: underline;
    }
}