/* Journey to the Invisible - Stylesheet */

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    max-width: 900px;
    margin: 0 auto;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: #333;
}

.container {
    background: white;
    border-radius: 15px;
    padding: 30px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

h1 {
    color: #4a5568;
    text-align: center;
    font-size: 2.5em;
    margin-bottom: 10px;
}

h2 {
    color: #2d3748;
    border-bottom: 3px solid #667eea;
    padding-bottom: 10px;
    margin-top: 40px;
}

h3 {
    color: #4a5568;
    margin-top: 30px;
}

/* Navigation Menu */
.nav-menu {
    background: #f7fafc;
    padding: 15px 20px;
    border-radius: 10px;
    margin: 20px 0;
    position: sticky;
    top: 10px;
    z-index: 1000;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.nav-menu a {
    display: inline-block;
    margin: 5px 10px;
    padding: 10px 15px;
    background: #667eea;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    transition: background 0.3s;
}

.nav-menu a:hover {
    background: #5a67d8;
}

/* Mobile Navigation Toggle */
.nav-toggle {
    display: none;
    width: 100%;
    padding: 12px 20px;
    background: #667eea;
    color: white;
    border: none;
    border-radius: 8px;
    font-size: 16px;
    font-weight: bold;
    cursor: pointer;
    margin-bottom: 10px;
    transition: background 0.3s;
}

.nav-toggle:hover {
    background: #5a67d8;
}

.nav-toggle::before {
    content: "☰ ";
    font-size: 1.2em;
    margin-right: 5px;
}

.nav-toggle.active::before {
    content: "✕ ";
}

.nav-links {
    display: block;
}

/* Mobile Responsive Navigation */
@media screen and (max-width: 768px) {
    body {
        padding: 10px;
    }

    .container {
        padding: 15px;
    }

    h1 {
        font-size: 1.8em;
    }

    .nav-toggle {
        display: block;
    }

    .nav-links {
        display: none;
        margin-top: 10px;
    }

    .nav-links.active {
        display: block;
    }

    .nav-menu {
        position: relative;
        top: 0;
    }

    .nav-menu a {
        display: block;
        margin: 5px 0;
    }
}

/* Back to Top Button */
.back-to-top {
    text-align: center;
    margin: 30px 0;
}

.back-to-top a {
    display: inline-block;
    padding: 12px 24px;
    background: #48bb78;
    color: white;
    text-decoration: none;
    border-radius: 5px;
    font-weight: bold;
    transition: background 0.3s;
}

.back-to-top a:hover {
    background: #38a169;
}

.back-to-top a::before {
    content: "↑ ";
    font-size: 1.2em;
}

/* Donation Section */
.donation-section {
    background: linear-gradient(135deg, #ffeaa7 0%, #fdcb6e 100%);
    padding: 30px;
    border-radius: 15px;
    margin: 40px 0;
    text-align: center;
    box-shadow: 0 4px 6px rgba(0,0,0,0.1);
}

.donation-section h3 {
    color: #2d3748;
    margin-top: 0;
    font-size: 1.8em;
}

.donation-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-top: 20px;
    flex-wrap: wrap;
}

.donation-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    background: white;
    color: #2d3748;
    text-decoration: none;
    border-radius: 10px;
    font-weight: bold;
    font-size: 1.1em;
    box-shadow: 0 2px 4px rgba(0,0,0,0.2);
    transition: transform 0.2s, box-shadow 0.2s;
}

.donation-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.3);
}

.donation-btn.paypal {
    background: #0070ba;
    color: white;
}

.donation-btn.coffee {
    background: #FFDD00;
    color: #000;
}

.donation-btn.kofi {
    background: #13C3FF;
    color: white;
}

.donation-icon {
    font-size: 1.5em;
}

/* Illustrations */
.illustration {
    text-align: center;
    margin: 30px 0;
    padding: 20px;
    background: #edf2f7;
    border-radius: 10px;
}

.illustration img {
    max-width: 100%;
    border-radius: 10px;
    border: 3px solid #667eea;
    display: block;
    margin: 0 auto;
}

.illustration-placeholder {
    background: #cbd5e0;
    height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4a5568;
    font-style: italic;
    border-radius: 10px;
    border: 3px dashed #667eea;
}

.caption {
    font-style: italic;
    color: #718096;
    margin-top: 10px;
}

/* Info Boxes */
.danger-box {
    background: #fff5f5;
    border-left: 5px solid #f56565;
    padding: 15px;
    margin: 20px 0;
    border-radius: 5px;
}

.success-box {
    background: #f0fff4;
    border-left: 5px solid #48bb78;
    padding: 15px;
    margin: 20px 0;
    border-radius: 5px;
}

.info-box {
    background: #ebf8ff;
    border-left: 5px solid #4299e1;
    padding: 15px;
    margin: 20px 0;
    border-radius: 5px;
}

.character-box {
    background: #fefcbf;
    border: 2px solid #ecc94b;
    padding: 15px;
    margin: 20px 0;
    border-radius: 10px;
}

/* Lists */
ul {
    line-height: 1.8;
}

/* Project Steps */
.project-step {
    background: #f7fafc;
    padding: 15px;
    margin: 15px 0;
    border-radius: 8px;
    border-left: 4px solid #48bb78;
}