/* ===================================
   PAGE TRANSITIONS & ANIMATIONS
   Smooth transitions for tab/page changes
   =================================== */

/* ==================== SAFARI/WEBKIT COMPATIBILITY ==================== */
/* Webkit prefixes for older Safari versions */

/* Safari animation timing */
* {
    -webkit-animation-timing-function: ease;
    animation-timing-function: ease;
}

/* Safari transform origin */
.btn, .card, .form-card, .modal-content {
    -webkit-transform-origin: center center;
    transform-origin: center center;
}

/* ==================== PAGE TRANSITION STATES ==================== */

/* Main content area transition wrapper */
.main-content {
    position: relative;
}

/* Tab content transitions */
.tab-content {
    animation: pageEnter var(--transition-slow) ease-out;
}

/* Tab panel (for main navigation tabs) */
[id$="-tab"],
#dashboard,
#equipment,
#repairs,
#events,
#clients,
#parts-bins,
#admin {
    animation: pageEnter var(--transition-slow) ease-out;
}

/* ==================== ENTER ANIMATIONS ==================== */

/* Default page enter - fade and slide up */
@keyframes pageEnter {
    from {
        opacity: 0;
        transform: translateY(12px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Page enter from right (for forward navigation) */
@keyframes pageEnterRight {
    from {
        opacity: 0;
        transform: translateX(20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Page enter from left (for back navigation) */
@keyframes pageEnterLeft {
    from {
        opacity: 0;
        transform: translateX(-20px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Scale and fade enter */
@keyframes pageEnterScale {
    from {
        opacity: 0;
        transform: scale(0.98);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

/* ==================== EXIT ANIMATIONS ==================== */

@keyframes pageExit {
    from {
        opacity: 1;
        transform: translateY(0);
    }
    to {
        opacity: 0;
        transform: translateY(-12px);
    }
}

@keyframes pageExitRight {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(-20px);
    }
}

@keyframes pageExitLeft {
    from {
        opacity: 1;
        transform: translateX(0);
    }
    to {
        opacity: 0;
        transform: translateX(20px);
    }
}

/* ==================== TRANSITION UTILITY CLASSES ==================== */

/* Apply these classes via JavaScript for custom transitions */
.page-transition-enter {
    animation: pageEnter 0.3s ease-out forwards;
}

.page-transition-enter-right {
    animation: pageEnterRight 0.3s ease-out forwards;
}

.page-transition-enter-left {
    animation: pageEnterLeft 0.3s ease-out forwards;
}

.page-transition-enter-scale {
    animation: pageEnterScale 0.25s ease-out forwards;
}

.page-transition-exit {
    animation: pageExit 0.2s ease-in forwards;
}

.page-transition-exit-right {
    animation: pageExitRight 0.2s ease-in forwards;
}

.page-transition-exit-left {
    animation: pageExitLeft 0.2s ease-in forwards;
}

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

/* Sub-tab content (list view, calendar view, etc.) */
.sub-tab-content,
.user-sub-tab {
    animation: tabEnter 0.25s ease-out;
}

@keyframes tabEnter {
    from {
        opacity: 0;
        transform: translateY(8px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Tab button active state transition */
.tab,
.tab-button {
    position: relative;
    overflow: hidden;
}

.tab::after,
.tab-button::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 3px;
    background: var(--color-primary);
    transition: all 0.3s ease;
    transform: translateX(-50%);
}

.tab.active::after,
.tab-button.active::after {
    width: 100%;
}

/* ==================== CARD STAGGER ANIMATIONS ==================== */

/* Staggered entrance for list items */
.stagger-enter > * {
    opacity: 0;
    transform: translateY(10px);
    animation: staggerItem 0.3s ease-out forwards;
}

.stagger-enter > *:nth-child(1) { animation-delay: 0ms; }
.stagger-enter > *:nth-child(2) { animation-delay: 50ms; }
.stagger-enter > *:nth-child(3) { animation-delay: 100ms; }
.stagger-enter > *:nth-child(4) { animation-delay: 150ms; }
.stagger-enter > *:nth-child(5) { animation-delay: 200ms; }
.stagger-enter > *:nth-child(6) { animation-delay: 250ms; }
.stagger-enter > *:nth-child(7) { animation-delay: 300ms; }
.stagger-enter > *:nth-child(8) { animation-delay: 350ms; }
.stagger-enter > *:nth-child(9) { animation-delay: 400ms; }
.stagger-enter > *:nth-child(10) { animation-delay: 450ms; }

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

/* ==================== TABLE ROW ANIMATIONS ==================== */

/* New row highlight */
.table-row-new {
    animation: rowHighlight 2s ease-out;
}

@keyframes rowHighlight {
    0% {
        background: var(--color-success-alpha);
    }
    100% {
        background: transparent;
    }
}

/* Row enter animation */
.table-row-enter {
    animation: rowEnter 0.3s ease-out;
}

@keyframes rowEnter {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* Row remove animation */
.table-row-exit {
    animation: rowExit 0.3s ease-in forwards;
}

@keyframes rowExit {
    to {
        opacity: 0;
        transform: translateX(10px);
        height: 0;
        padding: 0;
        margin: 0;
    }
}

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

/* Form section expand/collapse */
.form-section-collapsible .form-section-content {
    transition: max-height 0.3s ease, opacity 0.2s ease;
    overflow: hidden;
}

.form-section-collapsible.collapsed .form-section-content {
    max-height: 0;
    opacity: 0;
}

/* Form field focus animation */
.form-group input,
.form-group select,
.form-group textarea {
    transition:
        border-color 0.2s ease,
        background-color 0.2s ease,
        box-shadow 0.2s ease,
        transform 0.1s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    transform: translateY(-1px);
}

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

/* Modal backdrop */
.modal-overlay {
    animation: backdropEnter 0.2s ease-out;
}

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

/* Modal content */
.modal-content {
    animation: modalEnter 0.3s ease-out;
}

@keyframes modalEnter {
    from {
        opacity: 0;
        transform: translateY(-20px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Modal exit (add via JS before removing) */
.modal-overlay.closing {
    animation: backdropExit 0.2s ease-in forwards;
}

.modal-overlay.closing .modal-content {
    animation: modalExit 0.2s ease-in forwards;
}

@keyframes backdropExit {
    to {
        opacity: 0;
    }
}

@keyframes modalExit {
    to {
        opacity: 0;
        transform: translateY(-10px) scale(0.98);
    }
}

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

/* Sidebar slide */
.sidebar {
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Nav item hover animation */
.nav-item {
    transition:
        color 0.2s ease,
        background-color 0.2s ease,
        border-color 0.2s ease,
        padding-left 0.2s ease;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 0;
    height: 60%;
    background: var(--color-primary);
    border-radius: 0 2px 2px 0;
    transition: width 0.2s ease;
}

.nav-item:hover::before,
.nav-item.active::before {
    width: 3px;
}

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

.btn {
    transition:
        background-color 0.2s ease,
        transform 0.15s ease,
        box-shadow 0.2s ease;
}

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

.btn:active {
    transform: translateY(0) scale(0.98);
}

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

.card,
.form-card,
.repair-card,
.stat-card {
    transition:
        transform 0.2s ease,
        box-shadow 0.2s ease,
        border-color 0.2s ease;
}

/* ==================== NOTIFICATION ANIMATIONS ==================== */

/* Toast notification enter */
.toast-enter {
    animation: toastEnter 0.3s ease-out forwards;
}

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

/* Toast notification exit */
.toast-exit {
    animation: toastExit 0.2s ease-in forwards;
}

@keyframes toastExit {
    to {
        opacity: 0;
        transform: translateX(100%);
    }
}

/* Message slide down */
.message {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ==================== LOADING ANIMATIONS ==================== */

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

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

/* Skeleton shimmer */
@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* Bounce */
@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-5px); }
}

/* ==================== MICRO-INTERACTIONS ==================== */

/* Ripple effect (requires JS to add .ripple element) */
.btn-ripple {
    position: relative;
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: rippleEffect 0.6s ease-out forwards;
    pointer-events: none;
}

@keyframes rippleEffect {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* Check mark animation */
@keyframes checkmark {
    0% { stroke-dashoffset: 50; }
    100% { stroke-dashoffset: 0; }
}

.checkmark-animated {
    stroke-dasharray: 50;
    stroke-dashoffset: 50;
    animation: checkmark 0.3s ease-out forwards;
}

/* ==================== REDUCED MOTION ==================== */

/* Respect user's motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    .tab-content,
    .sub-tab-content,
    [id$="-tab"],
    .modal-content,
    .modal-overlay,
    .message,
    .toast-enter,
    .toast-exit {
        animation: none !important;
    }
}