:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --bg-gray: #f8fafc;
    --card-bg: #ffffff;
    --text-main: #0f172a;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --badge-red: #ef4444;
    --btn-amazon: #ffd814;
    --btn-amazon-hover: #f7ca00;
}

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

body {
    background-color: var(--bg-gray);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* HEADER */
.site-header {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 16px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
}

.header-content {
    max-width: 1280px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    letter-spacing: -0.5px;
}

.main-nav a {
    margin-left: 20px;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.2s;
}

.main-nav a:hover, .main-nav a.active {
    color: var(--primary);
}

/* FOOTER */
.site-footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 48px 20px 24px;
    margin-top: auto;
}

.footer-content {
    max-width: 1280px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 32px;
    margin-bottom: 40px;
}

.footer-col h3, .footer-col h4 {
    color: #f8fafc;
    font-size: 1.1rem;
    margin-bottom: 16px;
}

.footer-col p {
    font-size: 0.9rem;
    line-height: 1.6;
}

.footer-col ul {
    list-style: none;
}

.footer-col ul li {
    margin-bottom: 10px;
}

.footer-col ul li a {
    color: #94a3b8;
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

.footer-col ul li a:hover {
    color: #ffffff;
}

.social-buttons {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-top: 12px;
}

.social-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 12px;
    background: #1e293b;
    color: #f8fafc;
    border-radius: 8px;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    transition: background 0.2s;
}

.social-btn:hover {
    background: var(--primary);
}

.footer-bottom {
    max-width: 1280px;
    margin: 0 auto;
    padding-top: 24px;
    border-top: 1px solid #1e293b;
    text-align: center;
    font-size: 0.85rem;
    color: #64748b;
}

/* MODALS */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal-body {
    background: white;
    padding: 30px;
    border-radius: 16px;
    max-width: 700px;
    width: 100%;
    max-height: 80vh;
    overflow-y: auto;
    position: relative;
    color: var(--text-main);
}

.close-modal-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-muted);
}