/* ── Section loader (spinner + label + progress bar) ─────────────────────── */
.cm-section-loader {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 32px 20px;
    color: var(--c-text-muted, #8a9ab0);
    font-size: 0.875rem;
    letter-spacing: 0.01em;
    animation: cm-loader-appear 0.22s ease-out both;
    grid-column: 1 / -1;
    width: 100%;
    box-sizing: border-box;
}

.cm-section-loader__spin {
    display: block;
    width: 30px;
    height: 30px;
    border: 3px solid #dde6f0;
    border-top-color: var(--c-edit, #2d6bb5);
    border-radius: 50%;
    animation: biz-spin 0.75s linear infinite;
}

.cm-section-loader__label {
    display: flex;
    align-items: baseline;
    gap: 1px;
}

.cm-section-loader__dots {
    display: inline-block;
    overflow: hidden;
    vertical-align: bottom;
    width: 0;
    animation: cm-dots 1.4s steps(4, end) infinite;
}

.cm-section-loader__dots::before {
    content: '...';
}

.cm-section-loader__bar {
    width: 140px;
    height: 3px;
    background: #e4ecf5;
    border-radius: 3px;
    overflow: hidden;
}

.cm-section-loader__bar::after {
    content: '';
    display: block;
    height: 100%;
    background: var(--c-edit, #2d6bb5);
    border-radius: 3px;
    animation: cm-progress-fill 2.8s cubic-bezier(0.4, 0, 0.2, 1) forwards;
}

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

@keyframes cm-dots {
    from { width: 0; }
    to   { width: 1.1em; }
}

@keyframes cm-loader-appear {
    from { opacity: 0; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes cm-progress-fill {
    0%   { width: 0%; }
    40%  { width: 55%; }
    70%  { width: 75%; }
    90%  { width: 85%; }
    100% { width: 90%; }
}

@media (prefers-reduced-motion: reduce) {
    .cm-section-loader,
    .cm-section-loader__bar::after { animation: none; }
    .cm-section-loader__spin { animation: none; border-top-color: var(--c-edit, #2d6bb5); }
    .cm-section-loader__dots { animation: none; width: auto; }
    .cm-section-loader__bar::after { width: 60%; }
}

/* ── sb-loader — overlay reutilizable ────────────────────────────────────── */
/* Default (non-modal): fondo blanco + borde giratorio animado               */
/* Modal: fondo blanco sólido, sin borde animado (.sb-loader--modal)         */
/* Eliminar: borde rojo (.sb-loader--danger)                                 */

.sb-loader.cm-section-loader {
    position: absolute;
    inset: 0;
    background: transparent;
    overflow: hidden;
    z-index: 20;
    grid-column: unset;
    padding: 0;
    margin: 0;
    animation: cm-loader-appear 0.15s ease-out both;
}

.sb-loader.cm-section-loader::before {
    content: '';
    position: absolute;
    width: 300%;
    aspect-ratio: 1;
    top: 50%;
    left: 50%;
    background: conic-gradient(from 0deg, #0b6ff0 0deg, #93c5fd 80deg, transparent 160deg);
    animation: sb-border-spin 1.4s linear infinite;
    z-index: 0;
}

.sb-loader.cm-section-loader::after {
    content: '';
    position: absolute;
    inset: 2px;
    background: #ffffff;
    border-radius: inherit;
    z-index: 1;
}

.sb-loader.cm-section-loader > * {
    position: relative;
    z-index: 2;
}

/* Danger variant — borde rojo */
.sb-loader--danger.cm-section-loader::before {
    background: conic-gradient(from 0deg, #c0392b 0deg, #f1948a 80deg, transparent 160deg);
}

.sb-loader--danger .cm-section-loader__spin {
    border-top-color: #c0392b;
}

.sb-loader--danger .cm-section-loader__bar::after {
    background: #c0392b;
}

/* Modal variant — blanco sólido, sin borde animado */
.sb-loader--modal.cm-section-loader {
    background: rgba(255, 255, 255, 0.93);
    overflow: visible;
}

.sb-loader--modal.cm-section-loader::before,
.sb-loader--modal.cm-section-loader::after {
    display: none;
}

.sb-loader--modal.cm-section-loader > * {
    position: static;
    z-index: auto;
}

@keyframes sb-border-spin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to   { transform: translate(-50%, -50%) rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
    .sb-loader.cm-section-loader::before { animation: none; }
}