/*
 * SwiftURL — Shared Animation System
 * Compatible with the brutalist/constructivist design system.
 * All animations respect prefers-reduced-motion.
 */

/* ─── KEYFRAMES ──────────────────────────────────────────────── */

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

@keyframes sw-fadeInUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes sw-fadeInDown {
    from { opacity: 0; transform: translateY(-14px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes sw-fadeInLeft {
    from { opacity: 0; transform: translateX(-16px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes sw-fadeInRight {
    from { opacity: 0; transform: translateX(16px); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes sw-scaleIn {
    from { opacity: 0; transform: scale(0.94); }
    to   { opacity: 1; transform: scale(1); }
}

@keyframes sw-shimmer {
    0%   { background-position: -400px 0; }
    100% { background-position:  400px 0; }
}

@keyframes sw-spin {
    from { transform: rotate(0deg); }
    to   { transform: rotate(360deg); }
}

@keyframes sw-toast-in {
    from { opacity: 0; transform: translateX(110%); }
    to   { opacity: 1; transform: translateX(0); }
}

@keyframes sw-toast-out {
    from { opacity: 1; transform: translateX(0); }
    to   { opacity: 0; transform: translateX(110%); }
}

@keyframes sw-modal-backdrop-in {
    from { opacity: 0; }
    to   { opacity: 1; }
}

@keyframes sw-modal-content-in {
    from { opacity: 0; transform: scale(0.96) translateY(10px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

@keyframes sw-float-widget {
    0%, 100% { transform: translateY(0); }
    50%       { transform: translateY(-3px); }
}

@keyframes sw-stagger-in {
    from { opacity: 0; transform: translateY(10px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes sw-count-up {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes sw-error-shake {
    0%, 100% { transform: translateX(0); }
    20%       { transform: translateX(-6px); }
    40%       { transform: translateX(6px); }
    60%       { transform: translateX(-4px); }
    80%       { transform: translateX(4px); }
}

@keyframes sw-page-wipe-in {
    from { transform: scaleX(1); }
    to   { transform: scaleX(0); }
}

@keyframes sw-page-wipe-out {
    from { transform: scaleX(0); }
    to   { transform: scaleX(1); }
}

/* ─── UTILITY CLASSES ────────────────────────────────────────── */

.sw-fade-in          { animation: sw-fadeIn        0.3s ease both; }
.sw-fade-in-up       { animation: sw-fadeInUp      0.35s ease both; }
.sw-fade-in-down     { animation: sw-fadeInDown    0.3s ease both; }
.sw-fade-in-left     { animation: sw-fadeInLeft    0.3s ease both; }
.sw-fade-in-right    { animation: sw-fadeInRight   0.3s ease both; }
.sw-scale-in         { animation: sw-scaleIn       0.3s ease both; }

/* Stagger delays for list items */
.sw-stagger > *:nth-child(1) { animation-delay: 0.04s; }
.sw-stagger > *:nth-child(2) { animation-delay: 0.08s; }
.sw-stagger > *:nth-child(3) { animation-delay: 0.12s; }
.sw-stagger > *:nth-child(4) { animation-delay: 0.16s; }
.sw-stagger > *:nth-child(5) { animation-delay: 0.20s; }
.sw-stagger > *:nth-child(6) { animation-delay: 0.24s; }
.sw-stagger > *:nth-child(7) { animation-delay: 0.28s; }
.sw-stagger > *:nth-child(8) { animation-delay: 0.32s; }

/* ─── SKELETON LOADERS ───────────────────────────────────────── */

.sw-skeleton {
    background: linear-gradient(
        90deg,
        #d6c89a 25%,
        #e8d8a8 50%,
        #d6c89a 75%
    );
    background-size: 800px 100%;
    animation: sw-shimmer 1.4s ease-in-out infinite;
    border: 2px solid rgba(17,17,17,0.12);
}

.sw-skeleton-text {
    height: 1em;
    border-radius: 0;
    margin-bottom: 0.4em;
    display: block;
}

.sw-skeleton-text.short  { width: 42%; }
.sw-skeleton-text.medium { width: 68%; }
.sw-skeleton-text.long   { width: 90%; }
.sw-skeleton-text.full   { width: 100%; }

.sw-skeleton-value {
    height: 2.2rem;
    width: 72px;
    border-radius: 0;
    display: block;
}

.sw-skeleton-row {
    height: 52px;
    width: 100%;
    border-radius: 0;
    margin-bottom: 3px;
    display: block;
}

.sw-skeleton-badge {
    height: 1.6rem;
    width: 64px;
    border-radius: 0;
    display: inline-block;
}

/* ─── PAGE TRANSITION OVERLAY ────────────────────────────────── */

#sw-page-curtain {
    position: fixed;
    inset: 0;
    background: var(--red, #d71920);
    z-index: 9999;
    pointer-events: none;
    transform: scaleX(0);
    transform-origin: left;
}

#sw-page-curtain.sw-curtain-exit {
    animation: sw-page-wipe-out 0.28s cubic-bezier(0.77,0,0.18,1) forwards;
}

#sw-page-curtain.sw-curtain-enter {
    transform: scaleX(1);
    transform-origin: right;
    animation: sw-page-wipe-in 0.28s cubic-bezier(0.77,0,0.18,1) forwards;
}

/* ─── TOAST NOTIFICATIONS ────────────────────────────────────── */

#sw-toast-container {
    position: fixed;
    top: 1.25rem;
    right: 1.25rem;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    pointer-events: none;
}

.sw-toast {
    min-width: 240px;
    max-width: 340px;
    background: var(--black, #111111);
    color: var(--paper, #f7efd8);
    border: 3px solid var(--black, #111111);
    padding: 0.75rem 1rem;
    font-size: 0.82rem;
    font-weight: 900;
    text-transform: uppercase;
    font-family: 'Inter', sans-serif;
    box-shadow: 5px 5px 0 rgba(17,17,17,0.35);
    pointer-events: auto;
    animation: sw-toast-in 0.28s cubic-bezier(0.22,1,0.36,1) both;
    display: flex;
    align-items: center;
    gap: 0.6rem;
    cursor: pointer;
}

.sw-toast.sw-toast-success {
    background: var(--blue, #154c8b);
    border-color: var(--black, #111111);
    box-shadow: 5px 5px 0 var(--black, #111111);
}

.sw-toast.sw-toast-error {
    background: var(--red, #d71920);
    border-color: var(--black, #111111);
    box-shadow: 5px 5px 0 var(--black, #111111);
}

.sw-toast.sw-toast-info {
    background: var(--black, #111111);
    border-left: 5px solid var(--blue, #154c8b);
}

.sw-toast.sw-toast-copy {
    background: var(--black, #111111);
    border-left: 5px solid var(--blue, #154c8b);
}

.sw-toast.sw-exiting {
    animation: sw-toast-out 0.22s ease forwards;
    pointer-events: none;
}

.sw-toast-icon {
    font-size: 1rem;
    flex-shrink: 0;
}

/* ─── BUTTON ACTIVE STATE ────────────────────────────────────── */

.sw-btn-active {
    transition: transform 0.08s ease, box-shadow 0.08s ease;
}

.sw-btn-active:active {
    transform: translate(3px, 3px) !important;
}

/* ─── BUTTON LOADING STATE ───────────────────────────────────── */

.sw-btn-loading {
    position: relative;
    pointer-events: none;
    opacity: 0.82;
}

.sw-btn-loading::after {
    content: '';
    position: absolute;
    right: 0.9rem;
    top: 50%;
    width: 14px;
    height: 14px;
    margin-top: -7px;
    border: 2.5px solid rgba(255,255,255,0.3);
    border-top-color: #ffffff;
    border-radius: 50%;
    animation: sw-spin 0.7s linear infinite;
}

/* ─── TOP PROGRESS BAR ───────────────────────────────────────── */

#sw-progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--red, #d71920);
    z-index: 9998;
    transition: width 0.25s ease, opacity 0.3s ease;
    opacity: 0;
}

#sw-progress-bar.sw-progress-active {
    opacity: 1;
}

/* ─── LINK ITEM ENTER ────────────────────────────────────────── */

.sw-link-enter {
    animation: sw-stagger-in 0.3s ease both;
}

/* ─── ERROR SHAKE ────────────────────────────────────────────── */

.sw-shake {
    animation: sw-error-shake 0.38s ease;
}

/* ─── MODAL ANIMATIONS ───────────────────────────────────────── */

.sw-modal-backdrop {
    animation: sw-modal-backdrop-in 0.22s ease both;
}

.sw-modal-content {
    animation: sw-modal-content-in 0.28s cubic-bezier(0.22,1,0.36,1) both;
}

/* ─── FLOATING WIDGET ────────────────────────────────────────── */

.sw-widget-float {
    animation: sw-float-widget 2.8s ease-in-out infinite;
}

/* ─── COUNT APPEAR ───────────────────────────────────────────── */

.sw-count-appear {
    animation: sw-count-up 0.28s ease both;
}

/* ─── EMPTY STATE ────────────────────────────────────────────── */

.sw-empty-state {
    animation: sw-fadeIn 0.4s ease both;
    text-align: center;
    padding: 2rem 1rem;
}

/* ── ShortURL Creature ───────────────────────────────────── */

#shorturl-creature {
    position: fixed;
    left: 0;
    top: 0;

    width: 45px;
    height: 45px;

    z-index: 9999;
    pointer-events: none;

    color: #6366f1;

    transform: translate3d(
        var(--creature-x, 40px),
        var(--creature-y, 40px),
        0
    );

    transition:
        transform 0.7s cubic-bezier(.22, 1, .36, 1);

    filter: drop-shadow(0 4px 8px rgba(0,0,0,.25));
}

#shorturl-creature .creature-svg {
    width: 100%;
    height: 100%;

    animation: creatureBounce 0.35s infinite alternate ease-in-out;
}

#shorturl-creature .leg {
    transform-origin: center;
}

#shorturl-creature .leg-1 {
    animation: legMove 0.18s infinite alternate;
}

#shorturl-creature .leg-2 {
    animation: legMove 0.18s infinite alternate-reverse;
}

#shorturl-creature .leg-3 {
    animation: legMove 0.22s infinite alternate;
}

@keyframes creatureBounce {
    from {
        transform: translateY(0);
    }

    to {
        transform: translateY(-4px);
    }
}

@keyframes legMove {
    from {
        transform: rotate(-10deg);
    }

    to {
        transform: rotate(10deg);
    }
}

/* ─── REDUCED MOTION ─────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
    #shorturl-creature {
        
        transition: none;
    }

    #shorturl-creature .creature-svg,
    #shorturl-creature .leg {
        animation: none;
    }
}

/* ─── REDUCED MOTION ─────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.001ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.001ms !important;
    }
}