/**
 * article.css - Shared Canonical Stylesheet for Florest Scientific Articles
 * Provides Glassmorphism, Neon Dark Theme, Responsive Layouts, and Typography
 */
:root {
    --color-bg-deep: #050811;
    --color-bg-forest: radial-gradient(circle at 50% 50%, #0c1a24 0%, #050811 100%);
    --color-primary: #10b981;
    --color-primary-glow: rgba(16, 185, 129, 0.15);
    --color-accent: #8b5cf6;
    --color-text-main: #f8fafc;
    --color-text-muted: #64748b;
    --color-glass-card: rgba(15, 23, 42, 0.55);
    --color-glass-border: rgba(255, 255, 255, 0.05);
    --font-display: 'Outfit', sans-serif;
    --font-sans: 'Plus Jakarta Sans', sans-serif;
    --glass-blur: blur(20px);
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-font-smoothing: antialiased;
}

body {
    background: var(--color-bg-deep);
    background-image: var(--color-bg-forest);
    color: var(--color-text-main);
    font-family: var(--font-sans);
    line-height: 1.8;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    padding: 40px 20px;
}

.container {
    width: 100%;
    max-width: 820px;
    background: var(--color-glass-card);
    border: 1px solid var(--color-glass-border);
    border-radius: 28px;
    padding: 48px 40px;
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 36px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    flex-wrap: wrap;
    gap: 16px;
}

.btn-back {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--color-primary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 600;
    padding: 8px 16px;
    background: var(--color-primary-glow);
    border-radius: 12px;
    transition: var(--transition-smooth);
}

.btn-back:hover {
    background: rgba(16, 185, 129, 0.25);
    transform: translateX(-4px);
}

.lang-selector {
    display: flex;
    gap: 6px;
    background: rgba(0, 0, 0, 0.3);
    padding: 4px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    flex-wrap: wrap;
}

.lang-btn {
    background: none;
    border: none;
    color: var(--color-text-muted);
    font-size: 0.8rem;
    font-weight: 700;
    padding: 4px 10px;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition-smooth);
}

.lang-btn.active, .lang-btn:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.1);
}

h1 {
    font-family: var(--font-display);
    font-size: 2.2rem;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 24px;
    background: linear-gradient(135deg, #ffffff 0%, #a7f3d0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

h2 {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: #e2e8f0;
    margin: 36px 0 16px 0;
    display: flex;
    align-items: center;
    gap: 10px;
}

h2::before {
    content: '';
    display: inline-block;
    width: 4px;
    height: 18px;
    background: var(--color-primary);
    border-radius: 4px;
}

p {
    color: #cbd5e1;
    font-size: 1.05rem;
    margin-bottom: 20px;
}

.highlight-box {
    background: rgba(16, 185, 129, 0.05);
    border-left: 4px solid var(--color-primary);
    padding: 20px 24px;
    border-radius: 0 16px 16px 0;
    margin: 28px 0;
}

.highlight-box p {
    margin-bottom: 0;
    color: #e2e8f0;
}

ul, ol {
    padding-left: 24px;
    margin-bottom: 24px;
    color: #cbd5e1;
}

li {
    margin-bottom: 10px;
}

.footer {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-links a {
    color: var(--color-text-muted);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.footer-links a:hover {
    color: var(--color-primary);
}

.cta-box {
    margin-top: 32px;
    text-align: center;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.12) 0%, rgba(139, 92, 246, 0.12) 100%);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    padding: 28px 24px;
}

.cta-box h3 {
    font-family: var(--font-display);
    font-size: 1.25rem;
    margin-bottom: 8px;
    color: #f8fafc;
}

.cta-box p {
    font-size: 0.88rem;
    color: var(--color-text-muted);
    margin-bottom: 18px;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: linear-gradient(135deg, #10b981 0%, #8b5cf6 100%);
    color: #ffffff;
    text-decoration: none;
    font-weight: 700;
    padding: 12px 28px;
    border-radius: 14px;
    box-shadow: 0 0 20px rgba(16, 185, 129, 0.35);
    transition: var(--transition-smooth);
}

.btn-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px rgba(16, 185, 129, 0.5);
}

@media (max-width: 640px) {
    .container { padding: 32px 20px; }
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.25rem; }
}