/* Alexander Levanova - Unique Bio-Neon Sticky Sidebar Blog Style */
:root {
    --bg: #0D1F17;
    --card-bg: #132A22;
    --accent-lime: #39FF14;
    --accent-cyan: #00FFEA;
    --accent-amber: #FFEA00;
    --text-primary: #E8F5E9;
    --text-secondary: #A8C5B0;
    --border: rgba(57, 255, 20, 0.12);
}

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

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text-primary);
    line-height: 1.75;
    overflow-x: hidden;
}

/* Sticky Sidebar Navigation */
.sidebar {
    position: fixed;
    top: 0;
    left: 0;
    width: 260px;
    height: 100vh;
    background: #0A1812;
    border-right: 1px solid var(--border);
    padding: 40px 28px;
    z-index: 1000;
    display: flex;
    flex-direction: column;
}

.sidebar-logo {
    font-size: 26px;
    font-weight: 800;
    letter-spacing: -1.5px;
    margin-bottom: 48px;
    color: var(--accent-lime);
}

.sidebar-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sidebar-nav a {
    color: var(--text-secondary);
    text-decoration: none;
    padding: 14px 20px;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 500;
    transition: all 0.2s ease;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    background: rgba(57, 255, 20, 0.08);
    color: var(--accent-lime);
}

.sidebar-footer {
    margin-top: auto;
    font-size: 12px;
    color: #557766;
}

/* Main Content Area */
.main-content {
    margin-left: 260px;
    min-height: 100vh;
    padding: 60px 80px;
}

/* Hero - Centered Minimalist */
.hero {
    text-align: center;
    padding: 120px 0 100px;
    max-width: 820px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 68px;
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -3.5px;
    margin-bottom: 32px;
}

.hero p {
    font-size: 21px;
    color: var(--text-secondary);
    max-width: 620px;
    margin: 0 auto 48px;
}

/* Bio-Neon Buttons */
.bio-button {
    background: transparent;
    border: 2px solid var(--accent-lime);
    color: var(--accent-lime);
    padding: 16px 36px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    border-radius: 9999px;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: 0 0 12px rgba(57, 255, 20, 0.3);
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
}

.bio-button:hover {
    background: var(--accent-lime);
    color: #0D1F17;
    box-shadow: 0 0 25px var(--accent-lime);
    transform: translateY(-3px);
}

/* Articles Grid - Clean 2-Column */
.articles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 28px;
    max-width: 1180px;
    margin: 0 auto;
}

.article-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 36px 32px;
    transition: transform 0.4s cubic-bezier(0.23, 1, 0.32, 1), 
                box-shadow 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
    cursor: pointer;
}

.article-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.3), 
                0 0 20px rgba(57, 255, 20, 0.1);
    border-color: var(--accent-lime);
}

.article-card .category {
    font-size: 11px;
    letter-spacing: 2.5px;
    color: var(--accent-cyan);
    margin-bottom: 14px;
    font-weight: 600;
}

.article-card h3 {
    font-size: 21px;
    font-weight: 700;
    line-height: 1.35;
    margin-bottom: 18px;
    color: var(--text-primary);
}

.article-card p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.read-more {
    color: var(--accent-lime);
    font-weight: 600;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

/* Form */
.form-section {
    background: #0A1812;
    padding: 80px 0;
    margin-top: 100px;
}

.form-container {
    max-width: 580px;
    margin: 0 auto;
    padding: 0 40px;
}

.form-input {
    width: 100%;
    background: #132A22;
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 18px 24px;
    font-size: 16px;
    border-radius: 12px;
    margin-bottom: 18px;
    transition: border 0.3s;
}

.form-input:focus {
    outline: none;
    border-color: var(--accent-lime);
    box-shadow: 0 0 0 3px rgba(57, 255, 20, 0.1);
}

textarea.form-input {
    min-height: 150px;
    resize: vertical;
}

/* Footer */
footer {
    background: #08140F;
    padding: 70px 80px 50px;
    margin-left: 260px;
    border-top: 1px solid var(--border);
}

.footer-content {
    max-width: 1180px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1.8fr 1fr 1fr;
    gap: 60px;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(13, 31, 23, 0.95);
    z-index: 2000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active { display: flex; }

.modal-content {
    max-width: 780px;
    width: 100%;
    background: var(--card-bg);
    border: 1px solid var(--accent-lime);
    border-radius: 20px;
    padding: 52px;
    position: relative;
    max-height: 85vh;
    overflow-y: auto;
}

.modal-close {
    position: absolute;
    top: 24px;
    right: 28px;
    font-size: 32px;
    color: var(--text-secondary);
    cursor: pointer;
}

.modal-close:hover { color: var(--accent-lime); }

/* Responsive */
@media (max-width: 1024px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    .sidebar.active {
        transform: translateX(0);
    }
    .main-content, footer {
        margin-left: 0;
    }
    .mobile-menu-btn {
        display: block;
        position: fixed;
        top: 24px;
        right: 24px;
        z-index: 1100;
        background: #132A22;
        border: 1px solid var(--border);
        color: var(--accent-lime);
        width: 48px;
        height: 48px;
        border-radius: 9999px;
        font-size: 22px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .main-content {
        padding: 40px 24px;
    }
    .articles-grid {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 48px;
    }
}