/* ===================================
   ENHANCED BUTTONS - PUNTO 7
   Botones mejorados con efectos avanzados
   =================================== */

/* === BOTONES BASE MEJORADOS === */
.btn {
    position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-lg) var(--spacing-2xl);
    border: none;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: var(--font-size-base);
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-normal);
    overflow: hidden;
    z-index: 1;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
    text-transform: none;
    letter-spacing: 0.5px;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.5s;
    z-index: -1;
}

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

.btn::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
    z-index: -1;
}

.btn:active::after {
    width: 300px;
    height: 300px;
}

/* === BOTÓN PRIMARIO === */
.btn-primary {
    background: var(--gradient-button);
    color: var(--white);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(99, 102, 241, 0.4);
    background: var(--gradient-hover);
}

.btn-primary:active {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.5);
}

/* === BOTÓN SECUNDARIO === */
.btn-secondary {
    background: var(--white);
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    box-shadow: 0 4px 15px rgba(26, 31, 58, 0.1);
}

.btn-secondary:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(26, 31, 58, 0.3);
}

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

/* === BOTÓN DE ÉXITO === */
.btn-success {
    background: linear-gradient(135deg, #10b981, #059669);
    color: var(--white);
    box-shadow: 0 8px 25px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(16, 185, 129, 0.4);
    background: linear-gradient(135deg, #059669, #047857);
}

/* === BOTÓN DE WHATSAPP === */
.btn-whatsapp {
    background: linear-gradient(135deg, #25d366, #128c7e);
    color: var(--white);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 35px rgba(37, 211, 102, 0.4);
    background: linear-gradient(135deg, #128c7e, #075e54);
}

/* === BOTÓN OUTLINE === */
.btn-outline {
    background: transparent;
    color: var(--primary-blue);
    border: 2px solid var(--primary-blue);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: var(--primary-blue);
    color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(26, 31, 58, 0.2);
}

/* === BOTÓN GHOST === */
.btn-ghost {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--white);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.1);
}

/* === TAMAÑOS DE BOTONES === */
.btn-sm {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
    border-radius: var(--radius-lg);
}

.btn-lg {
    padding: var(--spacing-xl) var(--spacing-3xl);
    font-size: var(--font-size-lg);
    border-radius: var(--radius-2xl);
}

.btn-xl {
    padding: var(--spacing-2xl) var(--spacing-3xl);
    font-size: var(--font-size-xl);
    border-radius: var(--radius-2xl);
    font-weight: 700;
}

/* === BOTONES ESPECIALES === */

/* Botón con gradiente animado */
.btn-gradient-animated {
    background: linear-gradient(45deg, var(--primary-blue), var(--primary-purple), var(--primary-cyan), var(--primary-blue));
    background-size: 300% 300%;
    animation: gradientShift 3s ease infinite;
    color: var(--white);
}

@keyframes gradientShift {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}

.btn-gradient-animated:hover {
    animation-duration: 1s;
    transform: translateY(-3px) scale(1.05);
}

/* Botón con efecto neón */
.btn-neon {
    background: transparent;
    color: var(--primary-cyan);
    border: 2px solid var(--primary-cyan);
    text-shadow: 0 0 10px var(--primary-cyan);
    box-shadow: 
        0 0 20px rgba(6, 182, 212, 0.3),
        inset 0 0 20px rgba(6, 182, 212, 0.1);
}

.btn-neon:hover {
    background: var(--primary-cyan);
    color: var(--white);
    text-shadow: none;
    box-shadow: 
        0 0 30px rgba(6, 182, 212, 0.6),
        0 0 60px rgba(6, 182, 212, 0.4),
        inset 0 0 30px rgba(6, 182, 212, 0.2);
    transform: translateY(-3px);
}

/* Botón con efecto glassmorphism */
.btn-glass {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.btn-glass:hover {
    background: rgba(255, 255, 255, 0.25);
    border-color: rgba(255, 255, 255, 0.4);
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.2);
}

/* Botón con efecto 3D */
.btn-3d {
    background: var(--gradient-button);
    color: var(--white);
    box-shadow: 
        0 6px 0 var(--primary-blue),
        0 8px 25px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
}

.btn-3d:hover {
    transform: translateY(-4px);
    box-shadow: 
        0 8px 0 var(--primary-blue),
        0 12px 35px rgba(0, 0, 0, 0.4);
}

.btn-3d:active {
    transform: translateY(0);
    box-shadow: 
        0 2px 0 var(--primary-blue),
        0 4px 15px rgba(0, 0, 0, 0.2);
}

/* === BOTONES CON ICONOS === */
.btn-icon-left i {
    margin-right: var(--spacing-sm);
    transition: transform var(--transition-normal);
}

.btn-icon-right i {
    margin-left: var(--spacing-sm);
    transition: transform var(--transition-normal);
}

.btn:hover .btn-icon-right i {
    transform: translateX(3px);
}

.btn:hover .btn-icon-left i {
    transform: translateX(-3px);
}

/* Botón solo icono */
.btn-icon-only {
    width: 50px;
    height: 50px;
    padding: 0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-icon-only:hover {
    transform: translateY(-3px) rotate(5deg);
}

/* === ESTADOS DE BOTONES === */
.btn:disabled,
.btn.disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: none !important;
}

.btn:disabled:hover,
.btn.disabled:hover {
    transform: none;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

/* Estado de carga */
.btn.loading {
    pointer-events: none;
    position: relative;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

.btn.loading span {
    opacity: 0;
}

/* === GRUPOS DE BOTONES === */
.btn-group {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.btn-group .btn {
    flex: 1;
    min-width: 120px;
}

.btn-group-vertical {
    flex-direction: column;
}

.btn-group-vertical .btn {
    width: 100%;
}

/* === BOTONES FLOTANTES === */
.btn-floating {
    position: fixed;
    bottom: var(--spacing-2xl);
    right: var(--spacing-2xl);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    z-index: var(--z-floating);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
    animation: floatPulse 2s ease-in-out infinite;
}

@keyframes floatPulse {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-5px) scale(1.05); }
}

.btn-floating:hover {
    animation: none;
    transform: translateY(-5px) scale(1.1);
}

/* === EFECTOS ESPECIALES === */

/* Botón con ondas */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.btn-ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.5);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn-ripple:active::before {
    width: 300px;
    height: 300px;
}

/* Botón con partículas */
.btn-particles {
    position: relative;
}

.btn-particles:hover::after {
    content: '✨';
    position: absolute;
    top: -10px;
    right: -10px;
    font-size: 12px;
    animation: sparkle 0.6s ease-out;
}

@keyframes sparkle {
    0% { 
        opacity: 0;
        transform: scale(0) rotate(0deg);
    }
    50% { 
        opacity: 1;
        transform: scale(1.2) rotate(180deg);
    }
    100% { 
        opacity: 0;
        transform: scale(0) rotate(360deg);
    }
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
    .btn {
        padding: var(--spacing-md) var(--spacing-xl);
        font-size: var(--font-size-sm);
    }
    
    .btn-lg {
        padding: var(--spacing-lg) var(--spacing-2xl);
        font-size: var(--font-size-base);
    }
    
    .btn-group {
        flex-direction: column;
    }
    
    .btn-group .btn {
        width: 100%;
        min-width: auto;
    }
    
    .btn-floating {
        bottom: var(--spacing-lg);
        right: var(--spacing-lg);
        width: 50px;
        height: 50px;
    }
}

@media (max-width: 480px) {
    .btn {
        padding: var(--spacing-sm) var(--spacing-lg);
        font-size: var(--font-size-xs);
    }
    
    .btn-xl {
        padding: var(--spacing-lg) var(--spacing-xl);
        font-size: var(--font-size-lg);
    }
}

/* === TEMA OSCURO === */
[data-theme="dark"] .btn-secondary {
    background: var(--gray-800);
    color: var(--gray-100);
    border-color: var(--gray-600);
}

[data-theme="dark"] .btn-secondary:hover {
    background: var(--gray-700);
    border-color: var(--primary-cyan);
    color: var(--primary-cyan);
}

[data-theme="dark"] .btn-outline {
    color: var(--primary-cyan);
    border-color: var(--primary-cyan);
}

[data-theme="dark"] .btn-outline:hover {
    background: var(--primary-cyan);
    color: var(--gray-900);
}

[data-theme="dark"] .btn-glass {
    background: rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .btn-glass:hover {
    background: rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.3);
}

/* === ACCESIBILIDAD === */
@media (prefers-reduced-motion: reduce) {
    .btn,
    .btn::before,
    .btn::after {
        animation: none !important;
        transition: none !important;
    }
    
    .btn:hover {
        transform: none !important;
    }
}

/* Focus visible para accesibilidad */
.btn:focus-visible {
    outline: 2px solid var(--primary-cyan);
    outline-offset: 2px;
}