/* 
* LOKSY - Buttons Component
* Design system for consistent, accessible, and visually appealing buttons
*/

/* Button Variables - Design Tokens */
:root {
    /* Core sizing & spacing */
    --btn-padding-sm: 0.25rem 1rem;
    --btn-padding-md: 0.5rem 1.5rem;
    --btn-padding-lg: 0.75rem 2rem;
    
    /* Heights */
    --btn-height-sm: 2.2rem;
    --btn-height-md: 2.8rem;
    --btn-height-lg: 3.5rem;
    
    /* Borders & Shapes */
    --btn-border-width: 0;
    --btn-border-radius: 8px;
    --btn-border-radius-sm: 6px;
    --btn-border-radius-lg: 10px;
    --btn-border-radius-rounded: 50px;
    
    /* Typography */
    --btn-font-weight: 500;
    --btn-font-weight-bold: 600;
    
    /* Visual Effects */
    --btn-transition: all 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --btn-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
    --btn-shadow-hover: 0 6px 12px rgba(0, 0, 0, 0.2);
    
    /* Focus State */
    --btn-focus-ring-color: rgba(30, 136, 229, 0.4);
    --btn-focus-ring-width: 3px;
    
    /* Z-index for button visibility */
    --btn-z-index: 5;
}

/**
 * Base Button Styles
 * The foundation for all button variants
 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--btn-padding-md);
    height: var(--btn-height-md);
    
    font-family: var(--font-family);
    font-size: var(--font-size-md);
    font-weight: var(--btn-font-weight);
    line-height: 1.5;
    text-align: center;
    text-decoration: none;
    
    border: var(--btn-border-width) solid transparent;
    border-radius: var(--btn-border-radius);
    
    white-space: nowrap;
    vertical-align: middle;
    cursor: pointer;
    user-select: none;
    
    position: relative;
    z-index: var(--btn-z-index);
    overflow: hidden;
    
    transition: var(--btn-transition);
    
    /* Appliquer le dégradé par défaut */
    background: var(--gradient-primary);
    color: white;
    box-shadow: var(--btn-shadow);
}

/* Interactive States */
.btn:hover, 
.btn:focus {
    transform: translateY(-2px);
    box-shadow: var(--btn-shadow-hover);
    background: var(--gradient-hover);
}

.btn:active {
    transform: translateY(-1px);
}

/* Accessibility - Focus State */
.btn:focus {
    outline: none;
    box-shadow: 0 0 0 var(--btn-focus-ring-width) var(--btn-focus-ring-color);
}

.btn:focus:not(:focus-visible) {
    box-shadow: var(--btn-shadow);
}

/* Remove animation for reduced motion preference */
@media (prefers-reduced-motion: reduce) {
    .btn {
        transition: none;
    }
    
    .btn:hover, 
    .btn:focus {
        transform: none;
    }
}

/* Subtle hover effect - shine animation */
.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, rgba(255,255,255,0) 0%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0) 100%);
    z-index: 1;
    transition: all 0.4s ease;
    opacity: 0;
}

.btn:hover::before {
    left: 100%;
    opacity: 1;
}

/**
 * Color Variants
 * Consistent color application across button types
 */

/* Primary - Brand's main action color */
.btn-primary {
    background: var(--gradient-primary);
    color: white;
}

.btn-primary:hover, 
.btn-primary:focus {
    background: var(--gradient-hover);
    color: white;
}

/* Secondary - Complementary actions */
.btn-secondary {
    background: var(--gradient-primary);
    color: white;
}

.btn-secondary:hover, 
.btn-secondary:focus {
    background: var(--gradient-hover);
    color: white;
}

/* Light - For light backgrounds */
.btn-light {
    background-color: white;
    color: var(--text-color);
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.08);
}

.btn-light:hover, 
.btn-light:focus {
    background-color: var(--light-bg);
    color: var(--text-color);
}

/* Status Colors */
.btn-success {
    background: linear-gradient(45deg, #218838, #28a745);
    color: white;
}

.btn-success:hover, 
.btn-success:focus {
    background: linear-gradient(45deg, #1e7e34, #218838);
    color: white;
}

.btn-danger {
    background: linear-gradient(45deg, #c82333, #dc3545);
    color: white;
}

.btn-danger:hover, 
.btn-danger:focus {
    background: linear-gradient(45deg, #bd2130, #c82333);
    color: white;
}

.btn-warning {
    background: linear-gradient(45deg, #e0a800, #ffc107);
    color: #212529;
}

.btn-warning:hover, 
.btn-warning:focus {
    background: linear-gradient(45deg, #d39e00, #e0a800);
    color: #212529;
}

.btn-info {
    background: linear-gradient(45deg, #138496, #17a2b8);
    color: white;
}

.btn-info:hover, 
.btn-info:focus {
    background: linear-gradient(45deg, #117a8b, #138496);
    color: white;
}

/**
 * Style Variants
 * Different visual presentations of buttons
 */

/* Outline Style */
.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: none;
}

.btn-outline:hover, 
.btn-outline:focus {
    background: var(--gradient-primary);
    color: white;
    border-color: transparent;
}

/* Light Outline - For dark backgrounds */
.btn-outline-light {
    background-color: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.8);
    box-shadow: none;
}

.btn-outline-light:hover, 
.btn-outline-light:focus {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
    border-color: white;
}

/* Gradient Style */
.btn-gradient {
    background: var(--gradient-primary);
    color: white;
}

.btn-gradient:hover, 
.btn-gradient:focus {
    background: var(--gradient-hover);
    color: white;
}

/**
 * Size Variants
 */
.btn-sm {
    padding: var(--btn-padding-sm);
    height: var(--btn-height-sm);
    font-size: var(--font-size-sm);
    border-radius: var(--btn-border-radius-sm);
}

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

/**
 * Icon Buttons
 */
.btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-icon i {
    font-size: 1.2em;
    transition: transform 0.2s ease;
}

.btn-icon:hover i {
    transform: translateX(2px);
}

/* Icon-only buttons */
.btn-icon-only {
    width: var(--btn-height-md);
    padding: 0;
    border-radius: 50%;
}

.btn-icon-only.btn-sm {
    width: var(--btn-height-sm);
}

.btn-icon-only.btn-lg {
    width: var(--btn-height-lg);
}

/**
 * Special Variants
 */
.btn-cta {
    background: var(--gradient-primary);
    color: white;
    padding: 0.75rem 2rem;
    font-size: var(--font-size-lg);
    font-weight: var(--btn-font-weight-bold);
    border-radius: var(--btn-border-radius-rounded);
    position: relative;
    z-index: var(--btn-z-index);
}

.btn-cta:hover, 
.btn-cta:focus {
    transform: translateY(-3px);
    box-shadow: var(--btn-shadow-hover);
    background: var(--gradient-hover);
}

.btn-floating {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--btn-shadow);
    position: fixed;
    right: 20px;
    bottom: 20px;
    background: var(--gradient-primary);
    color: white;
    font-size: 1.5rem;
    z-index: 10;
}

.btn-floating:hover,
.btn-floating:focus {
    transform: translateY(-3px);
    box-shadow: var(--btn-shadow-hover);
    background: var(--gradient-hover);
}

/**
 * Layout Variants
 */
.btn-block {
    display: flex;
    width: 100%;
}

.btn-rounded {
    border-radius: var(--btn-border-radius-rounded);
}

/**
 * State Modifiers
 */
.btn:disabled,
.btn.disabled {
    opacity: 0.65;
    pointer-events: none;
    box-shadow: none;
    transform: none;
}

/**
 * Animation Variants
 * Used sparingly for attention-grabbing elements
 */
.btn-pulse {
    animation: btnPulse 2s infinite;
}

@keyframes btnPulse {
    0% { transform: scale(1); box-shadow: 0 0 0 0 rgba(30, 136, 229, 0.4); }
    70% { transform: scale(1.03); box-shadow: 0 0 0 10px rgba(30, 136, 229, 0); }
    100% { transform: scale(1); box-shadow: 0 0 0 0 rgba(30, 136, 229, 0); }
}

/**
 * Responsive Adaptations
 */
@media (max-width: 576px) {
    .btn {
        padding: 0.4rem 1.2rem;
    }
    
    .btn-lg {
        padding: 0.6rem 1.8rem;
        font-size: var(--font-size-md);
    }
    
    .btn-block-mobile {
        display: flex;
        width: 100%;
        margin-bottom: 0.5rem;
    }
}

/**
 * Contextual Overrides
 * Specific to page sections
 */
.hero-buttons .btn {
    position: relative;
    z-index: 5; /* Ensure buttons are above parallax elements */
    margin: 0.25rem;
}

.cta .btn {
    background-color: white;
    color: var(--primary-color);
    font-size: var(--font-size-md);
    padding: 0.8rem 2rem;
    transition: var(--btn-transition);
    border-radius: 10px;
    margin: 0.5rem 0.5rem 0.5rem 0;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.1);
}

.cta .btn:hover,
.cta .btn:focus {
    transform: translateY(-3px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

/* Ensure buttons in testimonials section are visible above parallax */
.testimonials-section .btn {
    z-index: 6;
    position: relative;
}

/* Make immersive section buttons more visible */
.hero-immersive .btn {
    z-index: 10;
    position: relative;
    margin: 0 0.5rem;
    box-shadow: var(--btn-shadow);
}