:root {
    --primary: #1a73e8;
    --primary-light: #4285f4;
    --primary-dark: #1557b0;
    --secondary: #34a853;
    --bg: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-card: #ffffff;
    --text: #202124;
    --text-secondary: #5f6368;
    --border: #dadce0;
    --shadow: 0 1px 3px rgba(60,64,67,0.15), 0 1px 2px rgba(60,64,67,0.1);
    --shadow-hover: 0 4px 12px rgba(60,64,67,0.2);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Roboto', -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    font-size: 16px;
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 4px; }

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.glass {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    box-shadow: var(--shadow);
}

/* Header */
header {
    padding: 10px 0;
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    background: #fff;
    box-shadow: 0 2px 4px rgba(0,0,0,0.08);
}

.nav-wrapper {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 8px;
    text-decoration: none;
    color: var(--text);
}

.logo { width: 32px; height: 32px; border-radius: 6px; }
.logo-text { font-size: 1.1rem; font-weight: 700; }
.logo-text span { color: var(--primary); }

.nav-links { 
    display: flex; 
    gap: 24px;
}
.nav-links a {
    text-decoration: none;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    transition: var(--transition);
}
.nav-links a:hover { color: var(--primary); }

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text);
    font-size: 1.4rem;
    cursor: pointer;
    padding: 4px;
}

.header-cta .btn {
    padding: 8px 16px;
    font-size: 0.85rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(30px); }
    to { opacity: 1; transform: translateY(0); }
}
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.02); }
}

.animate-fadeInUp { animation: fadeInUp 0.8s ease forwards; }

[data-animate] {
    opacity: 0;
    transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-animate].visible { opacity: 1; }
[data-animate="fadeUp"] { transform: translateY(40px); }
[data-animate="fadeUp"].visible { transform: translateY(0); }

/* Hero */
.hero {
    padding: 100px 0 60px;
    text-align: center;
    background: linear-gradient(180deg, #e8f0fe 0%, var(--bg) 100%);
}
.hero h1 {
    font-size: clamp(2rem, 6vw, 3.2rem);
    font-weight: 700;
    margin-bottom: 16px;
    color: var(--text);
}
.hero h1 span { color: var(--primary); display: block; }
.hero p {
    font-size: clamp(1rem, 2.5vw, 1.1rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 32px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    border-radius: 24px;
    border: none;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 2px 8px rgba(26,115,232,0.3);
}
.btn-primary:hover {
    background: var(--primary-light);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(26,115,232,0.4);
}
.btn-sm { padding: 10px 20px; font-size: 0.875rem; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
}
.btn-outline:hover {
    border-color: var(--primary);
    color: var(--primary);
}

/* Sections */
.sections { padding: 64px 0; }
.section-title { text-align: center; margin-bottom: 48px; }
.section-title h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text);
}
.section-title .underline {
    width: 60px; height: 3px;
    background: var(--primary);
    margin: 0 auto;
    border-radius: 2px;
}

/* Article Cards */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}
.article-card {
    padding: 24px;
    transition: var(--transition);
    background: var(--bg-card);
}
.article-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-hover);
}
.article-card h3 {
    font-size: 1.2rem;
    margin-bottom: 12px;
    color: var(--primary);
}
.article-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* FAQ */
.faq-container { max-width: 800px; margin: 0 auto; }
.faq-item { margin-bottom: 12px; }
.faq-question {
    padding: 18px 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    transition: var(--transition);
}
.faq-question:hover { background: var(--bg-secondary); }
.faq-question h4 { font-size: 1rem; font-weight: 500; color: var(--text); }
.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: var(--transition);
    padding: 0 24px;
}
.faq-item.active .faq-answer {
    padding: 18px 24px;
    max-height: 500px;
}
.faq-item.active .faq-question {
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    color: var(--primary);
    background: var(--bg-secondary);
}
.faq-item.active .faq-answer {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-top: none;
    border-radius: 0 0 12px 12px;
}
.faq-answer p { color: var(--text-secondary); }

/* Generator */
.generator-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 100px 16px 32px;
    background: linear-gradient(180deg, #e8f0fe 0%, var(--bg) 50%);
}
.generator-box {
    width: 100%;
    max-width: 480px;
    padding: 32px;
    text-align: center;
}
.input-group { margin-bottom: 20px; text-align: left; }
.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--primary);
    font-size: 0.9rem;
}
.input-group input, .input-group select {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text);
    font-size: 1rem;
    transition: var(--transition);
}
.input-group input:focus, .input-group select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(26,115,232,0.15);
    outline: none;
}
.input-group input::placeholder { color: var(--text-secondary); }

.platform-selector { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.platform-option {
    padding: 16px;
    border: 1px solid var(--border);
    border-radius: 12px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    background: var(--bg);
}
.platform-option:hover { border-color: var(--primary-light); }
.platform-option.active {
    border-color: var(--primary);
    background: #e8f0fe;
}
.platform-option svg { width: 36px; height: 36px; fill: var(--text); }
.platform-option.active svg { fill: var(--primary); }
.platform-option span { font-size: 0.9rem; font-weight: 500; }

/* Captcha */
.captcha-container {
    margin: 24px auto;
    padding: 12px 16px;
    background: #f9f9f9;
    border: 1px solid #d3d3d3;
    border-radius: 4px;
    display: flex;
    align-items: center;
    max-width: 300px;
}
.captcha-checkbox {
    width: 24px; height: 24px;
    border: 2px solid #c1c1c1;
    border-radius: 2px;
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    flex-shrink: 0;
}
.captcha-checkbox.checked::after {
    content: '✓';
    color: #4CAF50;
    font-size: 18px;
    font-weight: bold;
}
.captcha-text {
    color: #555;
    font-size: 13px;
    margin-left: 12px;
    flex-grow: 1;
}
.captcha-logo { display: flex; flex-direction: column; align-items: center; }
.captcha-logo img { width: 28px; }
.captcha-logo span { font-size: 9px; color: #999; }

/* Status */
.status-log {
    margin-top: 24px;
    text-align: left;
    font-family: 'Roboto Mono', monospace;
    color: var(--text-secondary);
    font-size: 0.85rem;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
}
.status-line { margin-bottom: 6px; animation: fadeIn 0.5s ease forwards; }
.status-error { color: #d93025; font-weight: 500; }

/* Footer */
footer {
    padding: 64px 0 32px;
    border-top: 1px solid var(--border);
    background: var(--bg-secondary);
}
.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    margin-bottom: 48px;
}
.footer-about h3, .footer-links h3 {
    margin-bottom: 20px;
    color: var(--primary);
    font-size: 1rem;
}
.footer-links ul { list-style: none; }
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul li a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}
.footer-links ul li a:hover { color: var(--primary); }
.footer-bottom {
    text-align: center;
    color: var(--text-secondary);
    font-size: 0.85rem;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.footer-about p { color: var(--text-secondary); }

/* Responsive */
@media (max-width: 992px) {
    .footer-content { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
    .nav-links {
        display: none;
        position: fixed;
        top: 52px;
        left: 0; 
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 0;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    }
    .nav-links.active { display: flex; }
    .nav-links a { 
        padding: 14px 20px; 
        border-bottom: 1px solid var(--border);
    }
    .nav-links a:last-child { border-bottom: none; }
    .mobile-menu-btn { display: block; }
    .header-cta { display: none; }
    .hero { padding: 80px 0 40px; }
    .footer-content { grid-template-columns: 1fr; gap: 32px; }
    .articles-grid { grid-template-columns: 1fr; }
    .generator-box { padding: 24px 20px; }
    .platform-selector { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
    .container { padding: 0 16px; }
    .hero { padding: 80px 0 40px; }
    .btn { padding: 10px 20px; font-size: 0.9rem; }
    .generator-box { padding: 20px 16px; }
    .logo { width: 28px; height: 28px; }
    .logo-text { font-size: 1rem; }
}


/* Resource Sliders */
.resource-icon {
    vertical-align: middle;
    margin-right: 8px;
}

.input-group label {
    display: flex;
    align-items: center;
}

input[type="range"] {
    width: 100%;
    height: 8px;
    border-radius: 4px;
    background: var(--border);
    outline: none;
    appearance: none;
    -webkit-appearance: none;
    margin: 12px 0 8px;
}

input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    box-shadow: 0 2px 6px rgba(26,115,232,0.4);
    transition: var(--transition);
}

input[type="range"]::-webkit-slider-thumb:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 12px rgba(26,115,232,0.5);
}

input[type="range"]::-moz-range-thumb {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    background: var(--primary);
    cursor: pointer;
    border: none;
}

.slider-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

#coinValue, #diamondValue {
    font-weight: 700;
    color: var(--primary);
    margin-left: 4px;
}