/* DocuSign-inspired color palette */
:root {
    --primary-blue: #0070e0;
    --primary-blue-dark: #0056b3;
    --accent-yellow: #ffc107;
    --accent-green: #28a745;
    --text-dark: #2c3e50;
    --text-muted: #6c757d;
    --bg-light: #f8f9fa;
    --bg-white: #ffffff;
    --border-light: #e9ecef;
    --shadow-light: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-medium: 0 4px 6px rgba(0, 0, 0, 0.1);
}

body { 
    background: var(--bg-light);
    color: var(--text-dark);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Hero section styles */
.hero-section {
    background: linear-gradient(135deg, var(--primary-blue) 0%, var(--primary-blue-dark) 100%);
    color: white;
    padding: 4rem 0;
    margin-bottom: 3rem;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    opacity: 0.9;
    margin-bottom: 2rem;
}

/* CTA Button styles */
.btn-primary {
    background-color: var(--accent-yellow);
    border-color: var(--accent-yellow);
    color: var(--text-dark);
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-primary:hover {
    background-color: #e0a800;
    border-color: #e0a800;
    color: var(--text-dark);
    box-shadow: var(--shadow-medium);
}

.btn-secondary {
    background-color: transparent;
    border: 2px solid white;
    color: white;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-secondary:hover {
    background-color: white;
    color: var(--primary-blue);
    box-shadow: var(--shadow-medium);
}

/* Feature cards */
.feature-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
    border: 1px solid var(--border-light);
}

.feature-card:hover {
    box-shadow: var(--shadow-medium);
}

.feature-icon {
    font-size: 3rem;
    color: var(--primary-blue);
    margin-bottom: 1rem;
}

.feature-title {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 1rem;
}

.feature-description {
    color: var(--text-muted);
    line-height: 1.6;
}

/* Stats section */
.stats-section {
    background: var(--bg-white);
    padding: 3rem 0;
    margin: 3rem 0;
}

.stat-item {
    text-align: center;
    padding: 1rem;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-blue);
    display: block;
}

.stat-label {
    color: var(--text-muted);
    font-size: 1rem;
    margin-top: 0.5rem;
}

/* Signature pad improvements */
.signature-pad {
    border: 2px solid var(--border-light);
    background: var(--bg-white);
    width: 100%;
    height: 200px;
    margin-bottom: 1em;
    border-radius: 8px;
    box-shadow: var(--shadow-light);
}

/* Form improvements */
.form-control {
    border: 2px solid var(--border-light);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
}

.form-control:focus {
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 0.2rem rgba(0, 112, 224, 0.25);
}

/* Card improvements */
.card {
    border: 1px solid var(--border-light);
    border-radius: 12px;
    box-shadow: var(--shadow-light);
    transition: all 0.3s ease;
}

.card:hover {
    box-shadow: var(--shadow-medium);
}

/* Alert improvements */
.alert {
    border-radius: 8px;
    border: none;
    box-shadow: var(--shadow-light);
}

/* Navbar improvements */
.navbar-brand {
    font-weight: 700;
    font-size: 1.5rem;
    font-family: ui-sans-serif;
    font-style: italic;
}

.navbar-nav .nav-link {
    font-weight: 500;
    transition: all 0.3s ease;
}

.navbar-nav .nav-link:hover {
    color: var(--accent-yellow) !important;
}

/* Footer improvements */
.footer {
    background: var(--text-dark) !important;
    color: white;
    border-top: none;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    
    .hero-section {
        padding: 2rem 0;
    }
    
    .feature-card {
        padding: 1.5rem;
    }
}