/* Sherpa Button System - Standardized & Modular */

:root {
    /* Button Color Palette */
    --btn-primary: #EA9C35;
    --btn-primary-hover: #D48E2E;
    --btn-primary-active: #C17A28;
    
    --btn-secondary: #16a34a;
    --btn-secondary-hover: #15803d;
    --btn-secondary-active: #166534;
    
    --btn-success: #16a34a;
    --btn-success-hover: #15803d;
    --btn-success-active: #166534;
    
    --btn-danger: #dc2626;
    --btn-danger-hover: #b91c1c;
    --btn-danger-active: #991b1b;
    
    --btn-warning: #f59e0b;
    --btn-warning-hover: #d97706;
    --btn-warning-active: #b45309;
    
    --btn-info: #1976A3;
    --btn-info-hover: #1565c0;
    --btn-info-active: #0d47a1;
    
    --btn-light: #ffffff;
    --btn-light-hover: #f9fafb;
    --btn-light-active: #f3f4f6;
    
    --btn-dark: #374151;
    --btn-dark-hover: #1f2937;
    --btn-dark-active: #111827;
    
    --btn-outline: #6b7280;
    --btn-outline-hover: #4b5563;
    --btn-outline-active: #374151;
    
    /* Button Sizes */
    --btn-xs-padding: 0.375rem 0.75rem;
    --btn-sm-padding: 0.5rem 1rem;
    --btn-md-padding: 0.625rem 1.25rem;
    --btn-lg-padding: 0.75rem 1.5rem;
    --btn-xl-padding: 1rem 2rem;
    
    --btn-xs-text: 0.75rem; /* 12px */
    --btn-sm-text: 0.875rem; /* 14px */
    --btn-md-text: 0.875rem; /* 14px */
    --btn-lg-text: 1rem;
    --btn-xl-text: 1.125rem;
    
    /* Button Border Radius */
    --btn-radius-sm: 0.375rem;
    --btn-radius-md: 0.5rem;
    --btn-radius-lg: 0.75rem;
    --btn-radius-xl: 1rem;
    --btn-radius-full: 9999px;
    
    /* Button Shadows */
    --btn-shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --btn-shadow-md: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --btn-shadow-lg: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --btn-shadow-xl: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    
    /* Button Transitions */
    --btn-transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --btn-transition-fast: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Base Button Styles */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-family: 'Poppins', 'Inter', 'Nunito Sans', 'Roboto', sans-serif;
    font-weight: 500;
    text-decoration: none;
    border: none;
    border-radius: var(--btn-radius-md);
    cursor: pointer;
    transition: var(--btn-transition);
    outline: none;
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    user-select: none;
    -webkit-tap-highlight-color: transparent;
    
    /* Default size */
    padding: var(--btn-md-padding);
    font-size: var(--btn-md-text);
    line-height: 1.25;
    
    /* Default shadow */
    box-shadow: var(--btn-shadow-md);
}

/* Button Sizes */
.btn-xs {
    padding: var(--btn-xs-padding);
    font-size: var(--btn-xs-text);
    border-radius: var(--btn-radius-sm);
}

.btn-sm {
    padding: var(--btn-sm-padding);
    font-size: var(--btn-sm-text);
    border-radius: var(--btn-radius-sm);
}

.btn-md {
    padding: var(--btn-md-padding);
    font-size: var(--btn-md-text);
    border-radius: var(--btn-radius-md);
}

.btn-lg {
    padding: var(--btn-lg-padding);
    font-size: var(--btn-lg-text);
    border-radius: var(--btn-radius-lg);
}

.btn-xl {
    padding: var(--btn-xl-padding);
    font-size: var(--btn-xl-text);
    border-radius: var(--btn-radius-lg);
}

/* Button Variants */
.btn-primary {
    background-color: var(--btn-primary);
    color: white;
    box-shadow: var(--btn-shadow-md);
}

.btn-primary:hover {
    background-color: var(--btn-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-lg);
}

.btn-primary:active {
    background-color: var(--btn-primary-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

.btn-secondary {
    background-color: var(--btn-secondary);
    color: white;
    box-shadow: var(--btn-shadow-md);
}

.btn-secondary:hover {
    background-color: var(--btn-secondary-hover);
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-lg);
}

.btn-secondary:active {
    background-color: var(--btn-secondary-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

.btn-success {
    background-color: var(--btn-success);
    color: white;
    box-shadow: var(--btn-shadow-md);
}

.btn-success:hover {
    background-color: var(--btn-success-hover);
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-lg);
}

.btn-success:active {
    background-color: var(--btn-success-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

.btn-danger {
    background-color: var(--btn-danger);
    color: white;
    box-shadow: var(--btn-shadow-md);
}

.btn-danger:hover {
    background-color: var(--btn-danger-hover);
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-lg);
}

.btn-danger:active {
    background-color: var(--btn-danger-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

.btn-warning {
    background-color: var(--btn-warning);
    color: white;
    box-shadow: var(--btn-shadow-md);
}

.btn-warning:hover {
    background-color: var(--btn-warning-hover);
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-lg);
}

.btn-warning:active {
    background-color: var(--btn-warning-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

.btn-info {
    background-color: var(--btn-info);
    color: white;
    box-shadow: var(--btn-shadow-md);
}

.btn-info:hover {
    background-color: var(--btn-info-hover);
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-lg);
}

.btn-info:active {
    background-color: var(--btn-info-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

.btn-light {
    background-color: var(--btn-light);
    color: var(--btn-dark);
    border: 1px solid #e5e7eb;
    box-shadow: var(--btn-shadow-sm);
}

.btn-light:hover {
    background-color: var(--btn-light-hover);
    border-color: #d1d5db;
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-md);
}

.btn-light:active {
    background-color: var(--btn-light-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

.btn-dark {
    background-color: var(--btn-dark);
    color: white;
    box-shadow: var(--btn-shadow-md);
}

.btn-dark:hover {
    background-color: var(--btn-dark-hover);
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-lg);
}

.btn-dark:active {
    background-color: var(--btn-dark-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

/* Outline Variants */
.btn-outline {
    background-color: transparent;
    color: var(--btn-outline);
    border: 1px solid #d1d5db;
    box-shadow: var(--btn-shadow-sm);
}

.btn-outline:hover {
    background-color: #f9fafb;
    color: var(--btn-outline-hover);
    border-color: #9ca3af;
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-md);
}

.btn-outline:active {
    background-color: #f3f4f6;
    color: var(--btn-outline-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

.btn-outline-primary {
    background-color: transparent;
    color: var(--btn-primary);
    border: 1px solid var(--btn-primary);
    box-shadow: var(--btn-shadow-sm);
}

.btn-outline-primary:hover {
    background-color: var(--btn-primary);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-md);
}

.btn-outline-primary:active {
    background-color: var(--btn-primary-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

.btn-outline-secondary {
    background-color: transparent;
    color: var(--btn-secondary);
    border: 1px solid var(--btn-secondary);
    box-shadow: var(--btn-shadow-sm);
}

.btn-outline-secondary:hover {
    background-color: var(--btn-secondary);
    color: white;
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-md);
}

.btn-outline-secondary:active {
    background-color: var(--btn-secondary-active);
    transform: translateY(0);
    box-shadow: var(--btn-shadow-sm);
}

/* Ghost Variants */
.btn-ghost {
    background-color: transparent;
    color: var(--btn-outline);
    box-shadow: none;
}

.btn-ghost:hover {
    background-color: #f9fafb;
    color: var(--btn-outline-hover);
    transform: translateY(-1px);
    box-shadow: var(--btn-shadow-sm);
}

.btn-ghost:active {
    background-color: #f3f4f6;
    color: var(--btn-outline-active);
    transform: translateY(0);
}

/* Button States */
.btn:disabled,
.btn.disabled {
    opacity: 0.5;
    cursor: not-allowed;
    pointer-events: none;
    transform: none !important;
}

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

.btn:focus:not(:focus-visible) {
    outline: none;
}

/* Loading State */
.btn.loading {
    position: relative;
    color: transparent;
    pointer-events: none;
}

.btn.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 1rem;
    height: 1rem;
    margin: -0.5rem 0 0 -0.5rem;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: btn-spin 0.6s linear infinite;
}

@keyframes btn-spin {
    to {
        transform: rotate(360deg);
    }
}

/* Icon Support */
.btn .btn-icon {
    width: 1.25em;
    height: 1.25em;
    flex-shrink: 0;
}

.btn .btn-icon:first-child {
    margin-right: 0.25rem;
}

.btn .btn-icon:last-child {
    margin-left: 0.25rem;
}

.btn .btn-icon:only-child {
    margin: 0;
}

/* Button Groups */
.btn-group {
    display: inline-flex;
    border-radius: var(--btn-radius-md);
    box-shadow: var(--btn-shadow-md);
    overflow: hidden;
}

.btn-group .btn {
    border-radius: 0;
    box-shadow: none;
    border-right: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-group .btn:first-child {
    border-top-left-radius: var(--btn-radius-md);
    border-bottom-left-radius: var(--btn-radius-md);
}

.btn-group .btn:last-child {
    border-top-right-radius: var(--btn-radius-md);
    border-bottom-right-radius: var(--btn-radius-md);
    border-right: none;
}

.btn-group .btn:hover {
    transform: none;
    box-shadow: none;
}

/* Legacy Button Compatibility */
/* These classes maintain backward compatibility with existing button styles */
.action-btn {
    @extend .btn;
    @extend .btn-primary;
}

.csv-btn {
    @extend .btn;
    @extend .btn-success;
}

.score-btn {
    @extend .btn;
    @extend .btn-primary;
}

.restart-btn {
    @extend .btn;
    @extend .btn-light;
    @extend .btn-sm;
    border-radius: var(--btn-radius-full);
    width: 2.25rem;
    height: 2.25rem;
    padding: 0;
}

.icp-summary-button {
    @extend .btn;
    @extend .btn-primary;
}

/* Auth Button Styles - Specific for login/signup pages */
.btn-auth {
    font-family: 'Poppins', 'Inter', 'Nunito Sans', 'Roboto', sans-serif;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 0.75rem 2rem;
    border-radius: 9999px;
    font-size: 1rem;
    line-height: 1.5;
    text-decoration: none;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 24rem;
    margin-left: auto;
    margin-right: auto;
}

.btn-auth:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

.btn-auth:active {
    transform: translateY(0);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
}

.btn-auth img {
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
}

@media (min-width: 768px) {
    .btn-auth {
        padding: 1rem 2rem;
        font-size: 1.125rem;
        gap: 0.75rem;
        max-width: 24rem;
    }
    
    .btn-auth img {
        width: 1.25rem;
        height: 1.25rem;
    }
}

/* HubSpot Auth Button */
.btn-auth-hubspot {
    background-color: #E29A26;
    color: white;
}

.btn-auth-hubspot:hover {
    background-color: #D48E2E;
    filter: brightness(1.1);
}

.btn-auth-hubspot:active {
    background-color: #C17A28;
}

/* Salesforce Auth Button */
.btn-auth-salesforce {
    background-color: white;
    color: #00A1E0;
    border: 2px solid #00A1E0;
}

.btn-auth-salesforce:hover {
    background-color: #E1F5FE;
    color: #00A1E0;
}

.btn-auth-salesforce:active {
    background-color: #0088c7;
    border-color: #0088c7;
}

/* Responsive adjustments */
@media (max-width: 640px) {
    .btn {
        padding: var(--btn-sm-padding);
        font-size: var(--btn-sm-text);
    }
    
    .btn-lg {
        padding: var(--btn-md-padding);
        font-size: var(--btn-md-text);
    }
    
    .btn-xl {
        padding: var(--btn-lg-padding);
        font-size: var(--btn-lg-text);
    }
    
    .btn-auth {
        width: 20rem;
        max-width: 20rem;
    }
}