/* ============================================
   ÁLGEBRA LAB - Animations
   ============================================ */

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

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

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

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

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }

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

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }

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

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

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

@keyframes shake {

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

    20%,
    60% {
        transform: translateX(-5px);
    }

    40%,
    80% {
        transform: translateX(5px);
    }
}

@keyframes pop {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
    }
}

@keyframes glow {

    0%,
    100% {
        box-shadow: 0 0 5px rgba(20, 184, 166, 0.5);
    }

    50% {
        box-shadow: 0 0 20px rgba(20, 184, 166, 0.8);
    }
}

@keyframes confetti {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }

    100% {
        transform: translateY(-100px) rotate(720deg);
        opacity: 0;
    }
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
        opacity: 0;
    }

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

@keyframes wiggle {

    0%,
    100% {
        transform: rotate(0deg);
    }

    25% {
        transform: rotate(-5deg);
    }

    75% {
        transform: rotate(5deg);
    }
}

/* Animation Classes */
.animate-fade-in-up {
    animation: fadeInUp 0.5s ease forwards;
}

.animate-fade-in-down {
    animation: fadeInDown 0.5s ease forwards;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.5s ease forwards;
}

.animate-fade-in-right {
    animation: fadeInRight 0.5s ease forwards;
}

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

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

.animate-pop {
    animation: pop 0.3s ease;
}

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

.animate-wiggle {
    animation: wiggle 0.5s ease;
}

/* Delay Classes */
.delay-100 {
    animation-delay: 100ms;
}

.delay-200 {
    animation-delay: 200ms;
}

.delay-300 {
    animation-delay: 300ms;
}

.delay-400 {
    animation-delay: 400ms;
}

.delay-500 {
    animation-delay: 500ms;
}

/* Hover Animations */
.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

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

.hover-scale {
    transition: transform 0.2s ease;
}

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

.hover-glow {
    transition: box-shadow 0.3s ease;
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(20, 184, 166, 0.4);
}

/* Transition Helpers */
.transition-all {
    transition: all 0.3s ease;
}

.transition-transform {
    transition: transform 0.3s ease;
}

.transition-opacity {
    transition: opacity 0.3s ease;
}

.transition-colors {
    transition: color 0.3s ease, background-color 0.3s ease, border-color 0.3s ease;
}

/* ============================================
   Widget Animations
   ============================================ */

/* Variable Box */
.variable-box {
    position: relative;
    width: 80px;
    height: 80px;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
    border-radius: var(--radius-xl);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-family: var(--font-mono);
    font-size: 2rem;
    font-weight: 700;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    cursor: pointer;
}

.variable-box:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(30, 58, 95, 0.4);
}

.variable-box.active {
    animation: glow 1.5s ease-in-out infinite;
}

.variable-box.drop-target {
    border: 3px dashed var(--color-secondary);
    background: rgba(20, 184, 166, 0.2);
}

.variable-box .box-label {
    position: absolute;
    top: -10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-secondary);
    color: white;
    font-size: 0.625rem;
    font-weight: 600;
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-full);
    text-transform: uppercase;
}

/* Draggable Items */
.draggable {
    cursor: grab;
    user-select: none;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.draggable:active {
    cursor: grabbing;
}

.draggable.dragging {
    transform: scale(1.1) rotate(2deg);
    box-shadow: var(--shadow-xl);
    z-index: 100;
    opacity: 0.9;
}

.drop-zone {
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-lg);
    padding: 1rem;
    min-height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

.drop-zone.drag-over {
    border-color: var(--color-secondary);
    background: rgba(20, 184, 166, 0.1);
    transform: scale(1.02);
}

.drop-zone.valid {
    border-color: var(--color-success);
    background: rgba(16, 185, 129, 0.1);
}

.drop-zone.invalid {
    border-color: var(--color-error);
    background: rgba(239, 68, 68, 0.1);
}

/* Number Chips */
.number-chip {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 48px;
    height: 48px;
    padding: 0 0.75rem;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-family: var(--font-mono);
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-primary);
    box-shadow: var(--shadow-md);
    cursor: grab;
    transition: all 0.2s ease;
}

.number-chip:hover {
    border-color: var(--color-secondary);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.number-chip.dragging {
    transform: scale(1.1);
    box-shadow: var(--shadow-xl);
}

/* Expression Blocks */
.expression-block {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 1rem;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-size: 1.125rem;
    font-weight: 600;
    transition: all 0.2s ease;
}

.expression-block.number {
    color: var(--color-primary);
    background: rgba(30, 58, 95, 0.1);
    border-color: var(--color-primary);
}

.expression-block.variable {
    color: var(--color-secondary);
    background: rgba(20, 184, 166, 0.1);
    border-color: var(--color-secondary);
}

.expression-block.operator {
    color: var(--color-accent);
    background: rgba(249, 115, 22, 0.1);
    border-color: var(--color-accent);
}

.expression-block:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Slider */
.slider-container {
    width: 100%;
    padding: 1rem 0;
}

.slider-track {
    position: relative;
    width: 100%;
    height: 8px;
    background: var(--color-border);
    border-radius: var(--radius-full);
}

.slider-fill {
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    background: var(--gradient-secondary);
    border-radius: var(--radius-full);
    transition: width 0.1s ease;
}

.slider-thumb {
    position: absolute;
    top: 50%;
    width: 24px;
    height: 24px;
    background: var(--color-surface);
    border: 3px solid var(--color-secondary);
    border-radius: var(--radius-full);
    transform: translate(-50%, -50%);
    cursor: grab;
    box-shadow: var(--shadow-md);
    transition: transform 0.1s ease, box-shadow 0.1s ease;
}

.slider-thumb:hover {
    transform: translate(-50%, -50%) scale(1.1);
    box-shadow: var(--shadow-lg);
}

.slider-thumb:active {
    cursor: grabbing;
    transform: translate(-50%, -50%) scale(1.2);
}

.slider-value {
    text-align: center;
    margin-top: 1rem;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    font-family: var(--font-mono);
}

/* Term Matcher */
.term-box {
    padding: 0.75rem 1.25rem;
    background: var(--color-surface);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-family: var(--font-mono);
    font-size: 1.125rem;
    font-weight: 600;
    transition: all 0.2s ease;
    cursor: pointer;
}

.term-box:hover {
    border-color: var(--color-secondary);
}

.term-box.matched {
    background: var(--color-success-light);
    border-color: var(--color-success);
}

.term-box.highlighted {
    animation: glow 1s ease-in-out infinite;
}

.term-group {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--color-border-light);
    border-radius: var(--radius-lg);
    min-height: 80px;
    border: 2px dashed transparent;
    transition: all 0.2s ease;
}

.term-group.active {
    border-color: var(--color-secondary);
}

/* Part Highlighter */
.expression-part {
    display: inline-block;
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all 0.2s ease;
    position: relative;
}

.expression-part:hover {
    background: rgba(20, 184, 166, 0.2);
}

.expression-part.selected {
    background: var(--color-secondary);
    color: white;
}

.expression-part.coefficient {
    border-bottom: 3px solid var(--color-accent);
}

.expression-part.variable {
    border-bottom: 3px solid var(--color-secondary);
}

.expression-part.exponent {
    border-bottom: 3px solid var(--color-primary);
}

.expression-part.constant {
    border-bottom: 3px solid #8b5cf6;
}

.part-label {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-primary);
    color: white;
    font-size: 0.625rem;
    padding: 0.125rem 0.5rem;
    border-radius: var(--radius-sm);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.expression-part:hover .part-label,
.expression-part.selected .part-label {
    opacity: 1;
}

/* Distributive Visual */
.distributive-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.distributive-source {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.distributive-arrow {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-secondary);
    font-size: 1.5rem;
    animation: bounce 1s ease infinite;
}

.distributive-result {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.factor-highlight {
    background: var(--color-accent);
    color: white;
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-weight: 700;
}

.term-highlight {
    background: var(--color-secondary-light);
    padding: 0.5rem 1rem;
    border-radius: var(--radius-md);
    font-family: var(--font-mono);
    font-weight: 600;
}

/* Geometric Identity */
.geometry-canvas {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto;
}

.geo-square {
    position: absolute;
    border: 2px solid var(--color-primary);
    transition: all 0.5s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--font-mono);
    font-weight: 600;
}

.geo-square.a-square {
    background: rgba(30, 58, 95, 0.3);
}

.geo-square.b-square {
    background: rgba(20, 184, 166, 0.3);
}

.geo-square.ab-rect {
    background: rgba(249, 115, 22, 0.3);
}

.geo-label {
    position: absolute;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--color-primary);
}

/* Success/Error States */
.success-animation {
    animation: pop 0.3s ease, glow 0.5s ease;
}

.error-animation {
    animation: shake 0.5s ease;
}

.correct-answer {
    background: var(--color-success-light) !important;
    border-color: var(--color-success) !important;
}

.incorrect-answer {
    background: var(--color-error-light) !important;
    border-color: var(--color-error) !important;
}

/* Confetti Effect */
.confetti-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1000;
    overflow: hidden;
}

.confetti-piece {
    position: absolute;
    width: 10px;
    height: 10px;
    animation: confetti 1s ease-out forwards;
}