/* Corporate Brand Colors - Yellow, Black, Gray */

:root {
    /* Primary Brand Colors */
    --brand-yellow: #FFC107;
    --brand-yellow-light: #FFD54F;
    --brand-yellow-dark: #F57C00;
    --brand-yellow-accent: #FFEB3B;
    
    --brand-black: #212529;
    --brand-black-light: #343A40;
    --brand-black-dark: #000000;
    
    --brand-gray: #6C757D;
    --brand-gray-light: #ADB5BD;
    --brand-gray-dark: #495057;
    
    /* Background Colors */
    --bg-light: #F8F9FA;
    --bg-lighter: #FFFFFF;
    --bg-gray: #E9ECEF;
    --bg-dark: #343A40;
    
    /* Text Colors */
    --text-primary: #495057;
    --text-secondary: #6C757D;
    --text-light: #ADB5BD;
    --text-white: #FFFFFF;
    
    /* Corporate Gradients */
    --gradient-yellow: linear-gradient(135deg, var(--brand-yellow) 0%, var(--brand-yellow-dark) 100%);
    --gradient-dark: linear-gradient(135deg, var(--brand-black) 0%, var(--brand-black-light) 100%);
    --gradient-corporate: linear-gradient(135deg, var(--brand-yellow) 0%, var(--brand-black) 100%);
    
    /* Shadow Colors */
    --shadow-light: rgba(0, 0, 0, 0.075);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --shadow-dark: rgba(0, 0, 0, 0.25);
    --shadow-yellow: rgba(255, 193, 7, 0.25);
}

/* Corporate Color Classes */
.bg-brand-yellow {
    background-color: var(--brand-yellow) !important;
    color: var(--brand-black) !important;
}

.bg-brand-yellow-light {
    background-color: var(--brand-yellow-light) !important;
    color: var(--brand-black) !important;
}

.bg-brand-yellow-dark {
    background-color: var(--brand-yellow-dark) !important;
    color: var(--text-white) !important;
}

.bg-brand-black {
    background-color: var(--brand-black) !important;
    color: var(--text-white) !important;
}

.bg-brand-gray {
    background-color: var(--brand-gray) !important;
    color: var(--text-white) !important;
}

.bg-gradient-yellow {
    background: var(--gradient-yellow) !important;
    color: var(--brand-black) !important;
}

.bg-gradient-dark {
    background: var(--gradient-dark) !important;
    color: var(--text-white) !important;
}

.bg-gradient-corporate {
    background: var(--gradient-corporate) !important;
    color: var(--text-white) !important;
}

/* Text Color Classes */
.text-brand-yellow {
    color: var(--brand-yellow) !important;
}

.text-brand-yellow-dark {
    color: var(--brand-yellow-dark) !important;
}

.text-brand-black {
    color: var(--brand-black) !important;
}

.text-brand-gray {
    color: var(--brand-gray) !important;
}

/* Button Variants */
.btn-brand-yellow {
    background: var(--gradient-yellow);
    border: 1px solid var(--brand-yellow-dark);
    color: var(--brand-black);
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-brand-yellow:hover {
    background: var(--brand-yellow-dark);
    color: var(--text-white);
    transform: translateY(-1px);
    box-shadow: 0 0.5rem 1rem var(--shadow-yellow);
}

.btn-brand-black {
    background: var(--gradient-dark);
    border: 1px solid var(--brand-black);
    color: var(--text-white);
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-brand-black:hover {
    background: var(--brand-black-light);
    color: var(--text-white);
    transform: translateY(-1px);
    box-shadow: 0 0.5rem 1rem var(--shadow-dark);
}

.btn-brand-outline-yellow {
    border: 2px solid var(--brand-yellow);
    color: var(--brand-yellow-dark);
    background: transparent;
    font-weight: 600;
    transition: all 0.3s ease;
}

.btn-brand-outline-yellow:hover {
    background: var(--brand-yellow);
    color: var(--brand-black);
}

/* Card Enhancements */
.card-brand {
    border: none;
    box-shadow: 0 0.125rem 0.25rem var(--shadow-light);
    border-radius: 0.75rem;
    overflow: hidden;
    transition: all 0.3s ease;
}

.card-brand:hover {
    box-shadow: 0 0.5rem 1rem var(--shadow-medium);
    transform: translateY(-2px);
}

.card-brand .card-header {
    background: var(--gradient-corporate);
    color: var(--text-white);
    border: none;
    font-weight: 600;
    padding: 1.25rem;
}

.card-brand .card-body {
    padding: 1.5rem;
    background: var(--bg-lighter);
}

/* Navigation Enhancements */
.navbar-brand-corporate {
    background: var(--gradient-yellow);
    color: var(--brand-black) !important;
    padding: 0.5rem 1rem;
    border-radius: 0.5rem;
    font-weight: 700;
    transition: all 0.3s ease;
}

.navbar-brand-corporate:hover {
    background: var(--brand-yellow-dark);
    color: var(--text-white) !important;
    transform: scale(1.05);
}

/* Alert Variants */
.alert-brand-yellow {
    background-color: var(--brand-yellow-light);
    border-color: var(--brand-yellow);
    color: var(--brand-black);
}

.alert-brand-info {
    background-color: var(--bg-gray);
    border-color: var(--brand-gray);
    color: var(--text-primary);
}

/* Form Enhancements */
.form-control-brand {
    border: 2px solid var(--bg-gray);
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    transition: all 0.3s ease;
    background-color: var(--bg-lighter);
}

.form-control-brand:focus {
    border-color: var(--brand-yellow);
    box-shadow: 0 0 0 0.2rem var(--shadow-yellow);
    background-color: var(--bg-lighter);
}

/* Loading Spinner */
.spinner-brand {
    border: 4px solid var(--bg-gray);
    border-top: 4px solid var(--brand-yellow);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Corporate Shadows */
.shadow-brand {
    box-shadow: 0 0.5rem 1rem var(--shadow-medium) !important;
}

.shadow-brand-lg {
    box-shadow: 0 1rem 3rem var(--shadow-dark) !important;
}

.shadow-yellow {
    box-shadow: 0 0.5rem 1rem var(--shadow-yellow) !important;
}

/* Responsive Brand Elements */
@media (max-width: 768px) {
    .navbar-brand-corporate {
        font-size: 1rem;
        padding: 0.375rem 0.75rem;
    }
    
    .card-brand .card-header {
        padding: 1rem;
        font-size: 0.9rem;
    }
    
    .card-brand .card-body {
        padding: 1rem;
    }
}