:root {
    --brand-primary: #1877F2;
    --brand-hover: #166FE5;
    --ig-gradient: linear-gradient(45deg, #f09433, #dc2743, #bc1888);
    --bg-main: #F0F2F5;
    --bg-panel: #FFFFFF;
    --text-primary: #050505;
    --text-secondary: #65676B;
    --border-color: #E4E6EB;
}
* { margin: 0; padding: 0; box-sizing: border-box; font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif; }
body { background: var(--bg-main); color: var(--text-primary); line-height: 1.5; font-size: 15px; }
a { text-decoration: none; color: inherit; }

/* Social Dashboard Style Nav */
.nav { background: var(--bg-panel); height: 60px; padding: 0 5%; display: flex; justify-content: space-between; align-items: center; position: sticky; top: 0; z-index: 100; box-shadow: 0 2px 4px rgba(0,0,0,0.08); }
.nav-brand { font-size: 22px; font-weight: 800; background: var(--ig-gradient); -webkit-background-clip: text; color: transparent; }
.nav-links { display: flex; gap: 10px; }
.nav-links a { padding: 8px 16px; border-radius: 6px; font-weight: 600; color: var(--text-secondary); transition: 0.2s; }
.nav-links a:hover, .nav-links a.active { background: #E4E6EB; color: var(--text-primary); }

/* Main Social Container */
.container { max-width: 1000px; margin: 0 auto; padding: 20px; display: grid; gap: 20px; }

/* Dashboard Hero */
.hero { background: var(--bg-panel); border-radius: 8px; box-shadow: 0 1px 2px rgba(0,0,0,0.1); padding: 40px 20px; text-align: center; border-bottom: 3px solid var(--brand-primary); }
.hero h1 { font-size: 32px; font-weight: 700; margin-bottom: 12px; }
.hero p { font-size: 16px; color: var(--text-secondary); max-width: 700px; margin: 0 auto 20px; }
.btn-group { display: flex; justify-content: center; gap: 12px; }
.btn { padding: 10px 24px; border-radius: 6px; font-weight: 600; font-size: 15px; cursor: pointer; transition: 0.2s; border: none; }
.btn-primary { background: var(--brand-primary); color: white; }
.btn-primary:hover { background: var(--brand-hover); }
.btn-secondary { background: #E4E6EB; color: var(--text-primary); }
.btn-secondary:hover { background: #D8DADF; }

/* Data Bar (Social Stats) */
.data-bar { display: flex; justify-content: space-around; background: var(--bg-panel); padding: 20px; border-radius: 8px; box-shadow: 0 1px 2px rgba(0,0,0,0.1); flex-wrap: wrap; gap: 15px; }
.data-item { text-align: center; }
.data-item h3 { font-size: 20px; font-weight: 700; color: var(--brand-primary); }
.data-item p { font-size: 13px; color: var(--text-secondary); font-weight: 600; }

/* Feed Style Layout */
.content-grid { display: grid; grid-template-columns: 2fr 1fr; gap: 20px; }
@media (max-width: 768px) { .content-grid { grid-template-columns: 1fr; } }

/* Feed Posts (Cards) */
.feed-post { background: var(--bg-panel); border-radius: 8px; box-shadow: 0 1px 2px rgba(0,0,0,0.1); margin-bottom: 20px; padding: 20px; }
.post-header { display: flex; align-items: center; gap: 10px; margin-bottom: 15px; }
.post-avatar { width: 40px; height: 40px; border-radius: 50%; background: var(--ig-gradient); display: flex; align-items: center; justify-content: center; color: white; font-weight: bold; }
.post-title { font-weight: 600; font-size: 16px; }
.post-title span { display: block; font-size: 12px; color: var(--text-secondary); font-weight: normal; }
.post-body p { color: var(--text-primary); font-size: 15px; line-height: 1.5; margin-bottom: 15px; }
.img-fluid { width: 100%; border-radius: 8px; display: block; border: 1px solid var(--border-color); }

/* Sidebar (FAQ & Guide) */
.sidebar-box { background: var(--bg-panel); border-radius: 8px; box-shadow: 0 1px 2px rgba(0,0,0,0.1); padding: 20px; margin-bottom: 20px; }
.sidebar-title { font-size: 16px; font-weight: 700; margin-bottom: 15px; padding-bottom: 10px; border-bottom: 1px solid var(--border-color); }
.faq-item { margin-bottom: 15px; }
.faq-item h4 { font-size: 14px; font-weight: 600; color: var(--text-primary); margin-bottom: 4px; }
.faq-item p { font-size: 13px; color: var(--text-secondary); }

.guide-step { display: flex; gap: 10px; margin-bottom: 15px; }
.step-num { font-weight: 700; color: var(--brand-primary); }
.step-text { font-size: 14px; color: var(--text-secondary); }

/* Footer */
.footer { background: var(--bg-panel); padding: 30px 20px; text-align: center; border-radius: 8px; box-shadow: 0 1px 2px rgba(0,0,0,0.1); margin-bottom: 20px; }
.footer-links { margin-bottom: 15px; display: flex; justify-content: center; gap: 15px; }
.footer-links a { color: var(--text-secondary); font-size: 13px; font-weight: 600; }
.footer-links a:hover { color: var(--brand-primary); }
.footer p { font-size: 12px; color: #8C939D; }