:root {
    --mp-navy: #153042;
    --mp-cyan: #78b9ad;
    --mp-action: #285f67;
    --mp-action-end: #214b5d;
    --mp-green: #c4a464;
    --mp-cream: #f4f6f5;
    --mp-bg: #0b1822;
    --mp-surface: #142936;
    --mp-surface-raised: #1b3543;
    --mp-border: rgba(181, 205, 210, 0.26);
    --mp-header: rgba(11, 27, 37, 0.97);
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    background:
        radial-gradient(circle at 8% 8%, rgba(94, 146, 144, 0.14), transparent 32rem),
        radial-gradient(circle at 92% 88%, rgba(131, 112, 78, 0.10), transparent 30rem),
        var(--mp-bg);
}

body.modal-open {
    overflow: hidden;
}

input,
textarea,
select {
    color: var(--mp-navy) !important;
    background-color: #f5f7f8 !important;
    caret-color: var(--mp-navy);
    text-shadow: none;
}

input:focus,
textarea:focus,
select:focus {
    color: var(--mp-navy) !important;
}

input::placeholder,
textarea::placeholder {
    color: #596c78 !important;
}

select option {
    color: var(--mp-navy) !important;
    background: #f5f7f8 !important;
}

select,
option,
input,
textarea {
    -webkit-text-fill-color: var(--mp-navy) !important;
}

select {
    color-scheme: light;
    appearance: auto;
}

select:focus,
select:hover,
select:active,
select option:checked,
select option:hover {
    color: var(--mp-navy) !important;
    background-color: #ffffff !important;
}

.grid-overlay {
    background-image:
        linear-gradient(rgba(120, 185, 173, 0.08) 1px, transparent 1px),
        linear-gradient(90deg, rgba(120, 185, 173, 0.08) 1px, transparent 1px);
    background-size: 40px 40px;
    mask-image: radial-gradient(circle at center, rgba(0, 0, 0, 0.85), transparent 85%);
}

.shadow-soft {
    box-shadow: 0 18px 50px rgba(4, 13, 19, 0.28);
}

.shadow-panel {
    box-shadow: 0 24px 70px rgba(4, 13, 19, 0.46), 0 0 36px rgba(120, 185, 173, 0.06);
}

/* Superficies con una separación clara del fondo, incluso en pantallas oscuras. */
.bg-slate-950\/65,
.bg-slate-950\/68,
.bg-slate-950\/72,
.bg-slate-950\/60,
.bg-slate-950\/55,
.bg-slate-950\/50,
.bg-slate-950\/40 {
    background-color: rgba(20, 41, 54, 0.94) !important;
}

.bg-white\/5,
.bg-white\/6,
.bg-white\/8,
.bg-white\/10,
.bg-white\/12,
.bg-white\/16 {
    background-color: rgba(191, 214, 215, 0.08) !important;
}

.border-white\/10 {
    border-color: var(--mp-border) !important;
}

.text-slate-400,
.text-slate-500 {
    color: #c1d0d4 !important;
}

.book-cover-frame {
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
        radial-gradient(circle at top, rgba(120, 185, 173, 0.16), transparent 48%),
        rgba(20, 41, 54, 0.88);
}

.dashboard-tab[aria-selected="true"] {
    background: linear-gradient(135deg, #285f67, #214b5d);
    border-color: #78b9ad;
    color: #ffffff;
}

.dashboard-tab-panel[hidden] {
    display: none !important;
}

summary::-webkit-details-marker {
    display: none;
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(var(--mp-cyan), var(--mp-green));
    border-radius: 999px;
}

::-webkit-scrollbar-track {
    background: rgba(10, 24, 33, 0.56);
}

.pdf-reader-stage {
    scrollbar-gutter: stable;
}

.pdf-page-shell {
    position: relative;
    line-height: 1;
}

.pdf-annotation-layer,
.pdf-text-layer {
    position: absolute;
    inset: 0;
}

.pdf-annotation-layer {
    overflow: hidden;
    pointer-events: none;
}

.pdf-text-layer {
    overflow: hidden;
    color: transparent;
    line-height: 1;
    transform-origin: 0 0;
    user-select: text;
    opacity: 1;
    pointer-events: none;
}

.pdf-annotation {
    position: absolute;
    border-radius: 0.2rem;
    pointer-events: none;
}

.pdf-annotation-layer.is-drawing {
    pointer-events: auto;
    cursor: crosshair;
}

.pdf-annotation-svg {
    width: 100%;
    height: 100%;
    display: block;
}

.pdf-text-layer > span,
.pdf-text-layer > br {
    position: absolute;
    white-space: pre;
    transform-origin: 0 0;
    cursor: text;
}

.pdf-text-layer ::selection {
    background: rgba(120, 185, 173, 0.42);
}

::selection {
    background: rgba(120, 185, 173, 0.50);
    color: #ffffff;
}