/* ============================================================
   Animations - Sistema de Encuestas ICAMI
   animations.css — Keyframes, animation classes, transitions
   ============================================================ */

/* ── Keyframes ───────────────────────────────────────── */

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@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);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes scaleUp {
    from {
        opacity: 0;
        transform: scale(0.95);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

@keyframes spin {
    from {
        transform: rotate(0deg);
    }

    to {
        transform: rotate(360deg);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200px 0;
    }

    100% {
        background-position: calc(200px + 100%) 0;
    }
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

@keyframes shake {

    0%,
    100% {
        transform: translateX(0);
    }

    10%,
    30%,
    50%,
    70%,
    90% {
        transform: translateX(-4px);
    }

    20%,
    40%,
    60%,
    80% {
        transform: translateX(4px);
    }
}

/* ── Animation Classes ───────────────────────────────── */

.animate-fadeIn {
    animation: fadeIn 0.4s ease forwards;
}

.animate-fadeInUp {
    animation: fadeInUp 0.5s ease forwards;
}

.animate-slideInUp {
    animation: slideInUp 0.5s ease forwards;
}

.animate-slideInDown {
    animation: slideInDown 0.4s ease forwards;
}

.animate-slideInLeft {
    animation: slideInLeft 0.4s ease forwards;
}

.animate-slideInRight {
    animation: slideInRight 0.4s ease forwards;
}

.animate-scaleIn {
    animation: scaleIn 0.3s ease forwards;
}

.animate-scaleUp {
    animation: scaleUp 0.3s ease forwards;
}

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

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

.animate-bounce {
    animation: bounce 1s ease infinite;
}

.animate-shake {
    animation: shake 0.5s ease forwards;
}

/* ── Stagger Delays ──────────────────────────────────── */
.delay-1 {
    animation-delay: 0.1s;
}

.delay-2 {
    animation-delay: 0.2s;
}

.delay-3 {
    animation-delay: 0.3s;
}

.delay-4 {
    animation-delay: 0.4s;
}

.delay-5 {
    animation-delay: 0.5s;
}

.delay-6 {
    animation-delay: 0.6s;
}

/* ── Transition Utilities ────────────────────────────── */
.transition-all {
    transition: all var(--transition-base);
}

.transition-fast {
    transition: all var(--transition-fast);
}

.transition-slow {
    transition: all var(--transition-slow);
}

.transition-colors {
    transition: color var(--transition-fast), background-color var(--transition-fast), border-color var(--transition-fast);
}

.transition-transform {
    transition: transform var(--transition-base);
}

.transition-opacity {
    transition: opacity var(--transition-base);
}

/* ── Hover Effects ───────────────────────────────────── */
.hover-lift {
    transition: transform var(--transition-base), box-shadow var(--transition-base);
}

.hover-lift:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.hover-scale {
    transition: transform var(--transition-fast);
}

.hover-scale:hover {
    transform: scale(1.03);
}

.hover-glow {
    transition: box-shadow var(--transition-base);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(0, 51, 102, 0.15);
}

/* ── Loading Skeleton ────────────────────────────────── */
.skeleton {
    background: linear-gradient(90deg,
            var(--surface-hover) 25%,
            var(--border-color-light) 50%,
            var(--surface-hover) 75%);
    background-size: 200px 100%;
    animation: shimmer 1.5s linear infinite;
    border-radius: var(--radius-md);
}

.skeleton-text {
    height: 1em;
    margin-bottom: var(--space-2);
    border-radius: var(--radius-sm);
}

.skeleton-circle {
    border-radius: var(--radius-full);
}

/* ── Page Transition ─────────────────────────────────── */
.page-enter {
    animation: fadeInUp 0.4s ease forwards;
}

/* ── Modal Animations ────────────────────────────────── */
.modal-enter {
    animation: scaleIn 0.3s ease forwards;
}

.modal-overlay-enter {
    animation: fadeIn 0.2s ease forwards;
}

/* ── Reduce Motion ───────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}