/* ==========================================================================
   LEVIX GLOBAL COMPONENTS CSS
   Unified styles for Navbar, Footer, Founder Trust Cards, and CTA systems.
   Built with premium, minimal SaaS aesthetics.
   ========================================================================== */

*, *::before, *::after {
    box-sizing: border-box;
}

/* === DESIGN SYSTEM TOKENS === */
:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --primary-light: rgba(37, 99, 235, 0.06);
    --primary-light-active: rgba(37, 99, 235, 0.1);
    --accent: #10b981;
    --border: #e2e8f0;
    --text: #0f172a;
    --text-secondary: #475569;
    --text-muted: #64748b;
    --surface: #ffffff;
    --bg-alt: #f8fafc;
    
    --nav-height: 72px;
    --container-width: 1200px;
    --btn-radius: 8px;
    
    --transition-smooth: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === REUSABLE COMPONENT: GLOBAL NAVBAR === */
.navbar {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    height: var(--nav-height);
    width: 100%;
}

.nav-container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 32px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo-brand {
    display: inline-flex;
    align-items: baseline;
    gap: 0;
    text-decoration: none;
    font-family: 'Outfit', 'Inter', sans-serif;
    font-weight: 800;
    text-transform: uppercase;
    letter-spacing: -0.05em;
    font-size: 1.55rem;
    transition: var(--transition-smooth);
}
.logo-light { color: #0f172a; }
.logo-dark { color: #ffffff; }
.logo-x { color: var(--primary); font-weight: 900; }

.logo-brand:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 4px;
    border-radius: 4px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 16px; /* Optimized layout gap */
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.925rem;
    font-weight: 500;
    transition: var(--transition-smooth);
    padding: 8px 16px;
    border-radius: var(--btn-radius);
    display: inline-flex;
    align-items: center;
}

.nav-link:hover {
    color: var(--primary);
    background: var(--primary-light);
}

/* Micro pill active state (Correction 9) */
.nav-link.active {
    color: var(--primary);
    background: var(--primary-light-active);
    font-weight: 600;
}

.nav-link:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: -2px;
}

.btn-signin {
    background: var(--primary);
    color: #ffffff !important;
    padding: 10px 24px;
    border-radius: var(--btn-radius);
    font-weight: 600;
    font-size: 0.9rem;
    text-decoration: none;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn-signin:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.15);
}

.btn-signin:active {
    transform: translateY(0);
}

.btn-signin:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: var(--btn-radius);
    transition: var(--transition-smooth);
}

.nav-toggle:hover {
    background: var(--bg-alt);
}

.nav-toggle:focus-visible {
    outline: 2px solid var(--primary);
}

.nav-toggle svg {
    width: 24px;
    height: 24px;
    color: var(--text);
}

/* === MOBILE NAV COLLAPSE (RESPONSIVE) === */
@media (max-width: 768px) {
    .nav-container {
        padding: 0 20px;
    }
    
    .nav-menu {
        display: none;
        position: absolute;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: #ffffff;
        flex-direction: column;
        padding: 20px;
        border-bottom: 1px solid var(--border);
        box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
        gap: 12px;
        z-index: 999;
    }
    
    .nav-menu.open {
        display: flex;
    }
    
    .nav-link {
        width: 100%;
        padding: 12px 16px;
        border-bottom: 1px solid var(--bg-alt);
        border-radius: var(--btn-radius);
    }
    
    .nav-menu .btn-signin {
        width: 100%;
        margin-top: 8px;
    }
    
    .nav-toggle {
        display: flex;
    }
}

/* === COMPONENT: GLOBAL FOOTER === */
footer {
    background: var(--text);
    color: #94a3b8;
    padding: 48px 0 24px;
    margin-top: 56px;
    border-top: 1px solid var(--border);
    font-family: 'Inter', sans-serif;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 32px;
    margin-bottom: 32px;
}

.footer-col h4 {
    font-size: 0.8rem;
    font-weight: 700;
    color: #cbd5e1;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    color: #64748b;
    text-decoration: none;
    font-size: 0.875rem;
    margin-bottom: 10px;
    transition: var(--transition-smooth);
}

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

.footer-bottom {
    border-top: 1px solid #1e293b;
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.8rem;
    color: #475569;
}

@media (max-width: 768px) {
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    .footer-bottom {
        flex-direction: column;
        gap: 12px;
        text-align: center;
    }
}

/* === COMPONENT: FOUNDER TRUST CARD (Correction 3 & 4) === */
.founder-trust-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    transition: var(--transition-smooth);
    width: 100%;
    margin-top: 16px;
}

.founder-trust-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(15, 23, 42, 0.04);
    border-color: var(--primary);
}

.founder-card-header {
    display: flex;
    align-items: center;
    gap: 16px;
    margin-bottom: 16px;
}

.founder-avatar {
    width: 56px;
    height: 56px;
    aspect-ratio: 1 / 1;
    border-radius: 50%;
    background: linear-gradient(135deg, #eff6ff 0%, #dbeafe 100%);
    object-fit: cover;
    display: block;
    flex-shrink: 0;
    border: 2px solid #ffffff;
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.1);
}

.founder-meta {
    display: flex;
    flex-direction: column;
}

.founder-meta h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 2px;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.founder-verified-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 0.725rem;
    font-weight: 700;
    background: var(--primary-light-active);
    padding: 2px 8px;
    border-radius: 12px;
}

.founder-meta p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-weight: 500;
    margin: 0;
}

.founder-card-desc {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 24px;
}

.founder-card-ctas {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Reusable buttons system (Correction 3) */
.btn-founder-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: #0077b5; /* Verified LinkedIn Brand Color */
    color: #ffffff !important;
    border: 1px solid #0077b5;
    padding: 10px 18px;
    border-radius: var(--btn-radius);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: center;
}

.btn-founder-primary:hover {
    background: #005a87;
    border-color: #005a87;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(0, 119, 181, 0.2);
}

.btn-founder-primary:focus-visible {
    outline: 2px solid #0077b5;
    outline-offset: 2px;
}

.btn-founder-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: #ffffff;
    color: var(--text-secondary) !important;
    border: 1px solid var(--border);
    padding: 10px 18px;
    border-radius: var(--btn-radius);
    font-size: 0.875rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition-smooth);
    text-align: center;
}

.btn-founder-secondary:hover {
    background: var(--bg-alt);
    border-color: var(--text-muted);
    color: var(--text) !important;
    transform: translateY(-1px);
}

.btn-founder-secondary:focus-visible {
    outline: 2px solid var(--text-secondary);
    outline-offset: 2px;
}

/* === VISUAL AFFORDANCE FOR ACTIONABLE ELEMENTS (Correction 8) === */
.click-affordance-btn {
    transition: var(--transition-smooth);
    cursor: pointer;
}
.click-affordance-btn:hover {
    transform: translateY(-1.5px);
}

.click-affordance-link {
    color: var(--primary);
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.click-affordance-link:hover {
    color: var(--primary-hover);
    text-decoration: underline;
}

/* Trust section indicators */
.legitimacy-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 12px;
}

.legitimacy-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #f0fdf4;
    color: #166534;
    border: 1px solid #bbf7d0;
    font-size: 0.775rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 12px;
}