/* Premium B2B Supplement Business CSS Framework */
:root {
    --primary: #2E7D32;
    --primary-dark: #1B5E20;
    --primary-light: #4CAF50;
    --accent-gold: #D4AF37;
    --accent-slate: #2C3E50;
    --accent-mint: #A8D8D8;
    --text-dark: #1A1A1A;
    --text-light: #555;
    --bg-white: #ffffff;
    --bg-light: #f8fafb;
    --bg-grey: #f0f2f5;
    --border-light: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 4px 16px rgba(0,0,0,0.12);
    --shadow-lg: 0 8px 24px rgba(0,0,0,0.16);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
    line-height: 1.7;
    color: var(--text-dark);
    background-color: var(--bg-white);
    font-size: 16px;
}

/* Typography */
h1, h2, h3, h4, h5, h6 { font-weight: 700; line-height: 1.3; margin-bottom: 1.5rem; }
h1 { font-size: 3.5rem; color: var(--primary-dark); }
h2 { font-size: 2.5rem; color: var(--primary); border-left: 5px solid var(--accent-gold); padding-left: 20px; margin-top: 3rem; }
h3 { font-size: 1.8rem; color: var(--accent-slate); margin-top: 2rem; }
h4 { font-size: 1.3rem; color: var(--text-dark); }
p { margin-bottom: 1.5rem; color: var(--text-light); line-height: 1.8; }

/* Containers */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.section { padding: 80px 0; }
.section:nth-child(even) { background-color: var(--bg-light); }

/* Header & Navigation */
header {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: white;
    padding: 60px 20px;
    text-align: center;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

header::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 400px;
    height: 400px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}

header h1 { color: white; margin-bottom: 10px; font-size: 2.8rem; }
header p { color: rgba(255,255,255,0.9); font-size: 1.2rem; margin: 0; }

/* Cards & Boxes */
.card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 30px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-light);
}

.card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-light);
}

.card h3 { margin-top: 0; color: var(--primary); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 30px; margin: 40px 0; }

/* Highlight Boxes */
.highlight-box {
    background: linear-gradient(135deg, rgba(46, 125, 50, 0.08) 0%, rgba(168, 216, 216, 0.08) 100%);
    border-left: 5px solid var(--accent-gold);
    padding: 30px;
    border-radius: 8px;
    margin: 40px 0;
}

.highlight-box h4 { color: var(--primary); margin-top: 0; }

/* Trust Badges */
.trust-badges {
    display: flex;
    gap: 20px;
    margin: 30px 0;
    flex-wrap: wrap;
}

.badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: var(--bg-light);
    border-radius: 50px;
    border: 2px solid var(--primary-light);
    font-weight: 600;
    color: var(--primary);
    font-size: 0.95rem;
}

.badge::before {
    content: '✓';
    font-size: 1.2rem;
    color: var(--accent-gold);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 14px 32px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
}

.btn-secondary {
    background: var(--accent-slate);
    border-color: var(--accent-slate);
}

.btn-secondary:hover { background: var(--text-dark); }

/* CTA Section */
.cta-section {
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
    color: white;
    padding: 60px 40px;
    border-radius: 15px;
    text-align: center;
    margin: 60px 0;
    box-shadow: var(--shadow-lg);
}

.cta-section h2 { color: white; border: none; padding: 0; margin-top: 0; }
.cta-section p { color: rgba(255,255,255,0.95); font-size: 1.1rem; }

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 30px 0;
    box-shadow: var(--shadow-sm);
    border-radius: 8px;
    overflow: hidden;
}

th, td { padding: 15px; text-align: left; border-bottom: 1px solid var(--border-light); }
th { background: linear-gradient(135deg, var(--primary-light) 0%, var(--accent-mint) 100%); color: white; font-weight: 600; }
tr:hover { background-color: var(--bg-light); }

/* Links */
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); text-decoration: underline; }

/* Lists */
ul, ol { margin: 20px 0 20px 30px; }
li { margin-bottom: 12px; line-height: 1.8; }

/* Knowledge Base Links */
.kb-link {
    display: block;
    padding: 15px 20px;
    background: var(--bg-light);
    border-left: 4px solid var(--primary);
    border-radius: 4px;
    margin-bottom: 12px;
    transition: var(--transition);
    color: var(--text-dark);
    font-weight: 500;
}

.kb-link:hover {
    background: var(--bg-grey);
    border-left-color: var(--accent-gold);
    transform: translateX(5px);
}

/* Footer */
footer {
    background: var(--accent-slate);
    color: white;
    padding: 40px 20px;
    text-align: center;
    margin-top: 80px;
}

footer p { color: rgba(255,255,255,0.8); margin-bottom: 10px; }
footer a { color: var(--accent-mint); }

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.8rem; }
    .section { padding: 40px 0; }
    .card-grid { grid-template-columns: 1fr; }
    header { padding: 40px 20px; }
}