/* ============================================
   ANIMACIONES CSS
   ============================================ */

/* Fade animations */
@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

@keyframes fadeOut {
    from {
        opacity: 1;
    }
    to {
        opacity: 0;
    }
}

/* Slide animations */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInDown {
    from {
        opacity: 0;
        transform: translateY(-30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale animations */
@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.95);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes scaleUp {
    from {
        transform: scale(1);
    }
    to {
        transform: scale(1.05);
    }
}

/* Bounce animation */
@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(8px);
    }
}

/* Pulse animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* Spin animation */
@keyframes spin {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}

/* Float animation */
@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

/* Glow animation */
@keyframes glow {
    0%, 100% {
        box-shadow: 0 0 5px rgba(255, 107, 53, 0.5);
    }
    50% {
        box-shadow: 0 0 20px rgba(255, 107, 53, 0.8);
    }
}

/* Gradient shift */
@keyframes gradientShift {
    0% {
        background-position: 0% 50%;
    }
    50% {
        background-position: 100% 50%;
    }
    100% {
        background-position: 0% 50%;
    }
}

/* ============================================
   ANIMATION CLASSES
   ============================================ */

.animate-fade-in {
    animation: fadeIn 0.6s ease-out forwards;
}

.animate-fade-out {
    animation: fadeOut 0.6s ease-out forwards;
}

.animate-slide-up {
    animation: slideInUp 0.6s ease-out forwards;
}

.animate-slide-down {
    animation: slideInDown 0.6s ease-out forwards;
}

.animate-slide-left {
    animation: slideInLeft 0.6s ease-out forwards;
}

.animate-slide-right {
    animation: slideInRight 0.6s ease-out forwards;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease-out forwards;
}

.animate-bounce {
    animation: bounce 1.5s infinite;
}

.animate-pulse {
    animation: pulse 2s ease-in-out infinite;
}

.animate-spin {
    animation: spin 1s linear infinite;
}

.animate-float {
    animation: float 3s ease-in-out infinite;
}

.animate-glow {
    animation: glow 2s ease-in-out infinite;
}

/* ============================================
   STAGGERED ANIMATIONS
   ============================================ */

.stagger > * {
    animation: slideInUp 0.6s ease-out backwards;
}

.stagger > *:nth-child(1) { animation-delay: 0s; }
.stagger > *:nth-child(2) { animation-delay: 0.1s; }
.stagger > *:nth-child(3) { animation-delay: 0.2s; }
.stagger > *:nth-child(4) { animation-delay: 0.3s; }
.stagger > *:nth-child(5) { animation-delay: 0.4s; }
.stagger > *:nth-child(6) { animation-delay: 0.5s; }

/* ============================================
   SCROLL REVEAL
   ============================================ */

.scroll-reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal.reveal {
    opacity: 1;
    transform: translateY(0);
}

/* Scale reveal variant */
.scroll-reveal-scale {
    opacity: 0;
    transform: scale(0.95);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal-scale.reveal {
    opacity: 1;
    transform: scale(1);
}

/* Left reveal */
.scroll-reveal-left {
    opacity: 0;
    transform: translateX(-30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal-left.reveal {
    opacity: 1;
    transform: translateX(0);
}

/* Right reveal */
.scroll-reveal-right {
    opacity: 0;
    transform: translateX(30px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.scroll-reveal-right.reveal {
    opacity: 1;
    transform: translateX(0);
}

/* ============================================
   PARALLAX BACKGROUNDS
   ============================================ */

.parallax-bg {
    background-attachment: fixed;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ============================================
   HOVER EFFECTS
   ============================================ */

.hover-lift {
    transition: transform 0.3s ease-out, box-shadow 0.3s ease-out;
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.hover-scale {
    transition: transform 0.3s ease-out;
}

.hover-scale:hover {
    transform: scale(1.05);
}

.hover-underline {
    position: relative;
    transition: color 0.3s ease-out;
}

.hover-underline::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: currentColor;
    transition: width 0.3s ease-out;
}

.hover-underline:hover::after {
    width: 100%;
}

/* ============================================
   GRADIENTS
   ============================================ */

.gradient-primary {
    background: linear-gradient(135deg, #007bff 0%, #0056b3 100%);
}

.gradient-accent {
    background: linear-gradient(135deg, #ff6b35 0%, #ff8c42 100%);
}

.gradient-hero {
    background: linear-gradient(
        to bottom,
        rgba(26, 26, 26, 0.7),
        rgba(26, 26, 26, 0.9)
    );
}

.gradient-text {
    background: linear-gradient(135deg, #007bff 0%, #ff6b35 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   TRANSITIONS
   ============================================ */

.transition-fast {
    transition: all 150ms ease-out;
}

.transition-base {
    transition: all 200ms ease-out;
}

.transition-slow {
    transition: all 300ms ease-out;
}

.transition-colors {
    transition: color 200ms ease-out, background-color 200ms ease-out;
}

.transition-transform {
    transition: transform 200ms ease-out;
}

/* ============================================
   LOADING STATES
   ============================================ */

.skeleton {
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* ============================================
   FOCUS STATES
   ============================================ */

:focus-visible {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
    outline: 2px solid #007bff;
    outline-offset: 2px;
}