/* ==========================================================================
   Global Loading Spinner — Zenu Platform
   Usage:  ZenuSpinner.show('Saving system...')   →  displays overlay
           ZenuSpinner.hide()                     →  removes overlay
           Add class "zenu-spinner-form" to any <form> for auto-activation.
   ========================================================================== */

/* ── Overlay ───────────────────────────────────────────────────────────── */
.zenu-spinner-overlay {
    position: fixed;
    inset: 0;
    z-index: 99999;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: rgba(15, 23, 42, 0.55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}

.zenu-spinner-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ── Card container ────────────────────────────────────────────────────── */
.zenu-spinner-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.25rem;
    padding: 2.5rem 3rem;
    background: rgba(255, 255, 255, 0.97);
    border-radius: 1rem;
    box-shadow:
        0 25px 60px rgba(0, 0, 0, 0.18),
        0 0 0 1px rgba(255, 255, 255, 0.15);
    animation: zenu-spinner-card-enter 0.4s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes zenu-spinner-card-enter {
    from { transform: scale(0.9) translateY(12px); opacity: 0; }
    to   { transform: scale(1) translateY(0);       opacity: 1; }
}

/* ── Ring spinner ──────────────────────────────────────────────────────── */
.zenu-spinner-ring {
    position: relative;
    width: 56px;
    height: 56px;
}

.zenu-spinner-ring svg {
    width: 100%;
    height: 100%;
    animation: zenu-ring-rotate 1.4s linear infinite;
}

.zenu-spinner-ring .track {
    fill: none;
    stroke: #e2e8f0;
    stroke-width: 4;
}

.zenu-spinner-ring .arc {
    fill: none;
    stroke: url(#zenu-gold-gradient);
    stroke-width: 4;
    stroke-linecap: round;
    stroke-dasharray: 120;
    stroke-dashoffset: 80;
    animation: zenu-ring-dash 1.4s ease-in-out infinite;
}

@keyframes zenu-ring-rotate {
    to { transform: rotate(360deg); }
}

@keyframes zenu-ring-dash {
    0%   { stroke-dashoffset: 120; }
    50%  { stroke-dashoffset: 30;  }
    100% { stroke-dashoffset: 120; }
}

/* ── Spinner text ──────────────────────────────────────────────────────── */
.zenu-spinner-text {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.95rem;
    font-weight: 600;
    color: #1e293b;
    letter-spacing: 0.01em;
}

.zenu-spinner-subtext {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 0.8rem;
    font-weight: 400;
    color: #94a3b8;
    margin-top: -0.5rem;
}

/* ── Pulsing dots ──────────────────────────────────────────────────────── */
.zenu-spinner-dots {
    display: inline-flex;
    gap: 4px;
    margin-left: 2px;
}

.zenu-spinner-dots span {
    display: inline-block;
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background-color: #b08d30;
    animation: zenu-dot-pulse 1.2s ease-in-out infinite;
}

.zenu-spinner-dots span:nth-child(2) { animation-delay: 0.2s; }
.zenu-spinner-dots span:nth-child(3) { animation-delay: 0.4s; }

@keyframes zenu-dot-pulse {
    0%, 80%, 100% { opacity: 0.3; transform: scale(0.8); }
    40%           { opacity: 1;   transform: scale(1.2); }
}