/* ============================================
   Reveal Animations
   ============================================ */
.reveal {
    opacity: 0;
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-up {
    transform: translateY(50px);
}

.reveal-down {
    transform: translateY(-50px);
}

.reveal-left {
    transform: translateX(50px);
}

.reveal-right {
    transform: translateX(-50px);
}

.reveal-fade {
    transform: none;
}

.reveal.revealed {
    opacity: 1;
    transform: translate(0, 0);
}

/* ============================================
   Stagger Animations
   ============================================ */
.stagger-container {
    opacity: 0;
}

.stagger-item {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.5s cubic-bezier(0.16, 1, 0.3, 1),
                transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}

.stagger-container.revealed .stagger-item {
    opacity: 1;
    transform: translateY(0);
}

/* ============================================
   Card Hover Effects
   ============================================ */
.card-elevated {
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card-elevated:hover {
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
    transform: translateY(-2px);
}

/* ============================================
   Button Animations
   ============================================ */
.btn-animated {
    transition: transform 0.2s ease;
}

.btn-animated:hover {
    transform: scale(1.02);
}

.btn-animated:active {
    transform: scale(0.98);
}

/* ============================================
   Accordion Animations
   ============================================ */
.accordion-item {
    overflow: hidden;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.accordion-item.active .accordion-content {
    max-height: 1000px;
    transition: max-height 0.5s ease-in;
}

/* ============================================
   Modal/Dialog Animations
   ============================================ */
.modal-overlay {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    z-index: 100;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: all;
}

.modal-content {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    background-color: var(--surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-6);
    max-width: 90vw;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 101;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

.modal-overlay.active .modal-content {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
    pointer-events: all;
}

/* ============================================
   Page Transition Animations
   ============================================ */
.page-transition-enter {
    opacity: 0;
    transform: translateX(20px);
}

.page-transition-enter-active {
    opacity: 1;
    transform: translateX(0);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

.page-transition-exit {
    opacity: 1;
    transform: translateX(0);
}

.page-transition-exit-active {
    opacity: 0;
    transform: translateX(-20px);
    transition: opacity 0.3s ease, transform 0.3s ease;
}

/* ============================================
   Loading Spinner
   ============================================ */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ============================================
   Fade In/Out
   ============================================ */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

.fade-out {
    animation: fadeOut 0.5s ease-out;
}

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

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

/* ============================================
   Slide Animations
   ============================================ */
.slide-in-from-top {
    animation: slideInFromTop 0.3s ease-out;
}

.slide-in-from-bottom {
    animation: slideInFromBottom 0.3s ease-out;
}

.slide-in-from-left {
    animation: slideInFromLeft 0.3s ease-out;
}

.slide-in-from-right {
    animation: slideInFromRight 0.3s ease-out;
}

@keyframes slideInFromTop {
    from {
        transform: translateY(-100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInFromBottom {
    from {
        transform: translateY(100%);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes slideInFromLeft {
    from {
        transform: translateX(-100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes slideInFromRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================
   Zoom Animations
   ============================================ */
.zoom-in {
    animation: zoomIn 0.3s ease-out;
}

.zoom-out {
    animation: zoomOut 0.3s ease-out;
}

@keyframes zoomIn {
    from {
        transform: scale(0.95);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

@keyframes zoomOut {
    from {
        transform: scale(1);
        opacity: 1;
    }
    to {
        transform: scale(0.95);
        opacity: 0;
    }
}