/* Dark theme customization for Bootstrap 5.3 */
[data-bs-theme="dark"] {
    --bs-body-bg: #0d1117;
    --bs-body-color: #c9d1d9;
    --bs-border-color: #30363d;
    --bs-card-bg: #161b22;
    --bs-card-border-color: #30363d;
    --bs-link-color: #58a6ff;
    --bs-link-hover-color: #79c0ff;
    --bs-primary: #58a6ff;
    --bs-secondary: #8b949e;
}

/* Seguridad Básica (UI) */
body {
    -webkit-user-select: none; /* Safari */
    -ms-user-select: none; /* IE 10 and IE 11 */
    user-select: none; /* Standard syntax */
}

/* Permitir selección en inputs para que los filtros funcionen */
input, textarea {
    -webkit-user-select: text;
    -ms-user-select: text;
    user-select: text;
}

/* Evitar arrastre de imágenes visualmente */
img {
    -webkit-user-drag: none;
    -khtml-user-drag: none;
    -moz-user-drag: none;
    -o-user-drag: none;
    user-drag: none;
}

/* Cards para estampillas */
.stamp-card {
    height: 100%;
    background-color: var(--bs-card-bg);
    border: 1px solid var(--bs-card-border-color);
    border-radius: .75rem;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 6px rgba(0,0,0,.3);
}

.stamp-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0,0,0,.35);
}

.stamp-image {
    height: 150px;
    object-fit: contain;
    margin: 0 auto;
    background: transparent;
}

.stamp-title {
    font-size: 0.95rem;
    height: 40px;
    overflow: hidden;
    text-overflow: ellipsis;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
}

.stamp-info {
    font-size: 0.85rem;
    color: var(--bs-secondary);
}

.stamp-info span {
    display: block;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* Loading */
#loading {
    min-height: 200px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.placeholder-image {
    width: 100%;
    height: 150px;
    background-color: #0b0f14;
    display: flex;
    justify-content: center;
    align-items: center;
    color: #8b949e;
    border: 1px dashed var(--bs-border-color);
}

/* Formularios en oscuro */
.form-control, .form-select {
    background-color: #0d1117;
    color: var(--bs-body-color);
    border-color: var(--bs-border-color);
}
.form-control::placeholder {
    color: #8b949e;
}
.form-control:focus, .form-select:focus {
    border-color: var(--bs-primary);
    box-shadow: 0 0 0 .2rem rgba(88,166,255,.25);
}

/* Botones */
.btn-primary {
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
}
.btn-primary:hover {
    background-color: #1f6feb;
    border-color: #1f6feb;
}
.btn-outline-secondary {
    color: var(--bs-body-color);
    border-color: var(--bs-border-color);
}
.btn-outline-secondary:hover {
    background-color: #21262d;
}

/* Modal & tablas en oscuro */
.modal-content {
    background-color: var(--bs-card-bg);
    border-color: var(--bs-border-color);
}
.table {
    color: var(--bs-body-color);
}
.table-striped > tbody > tr:nth-of-type(odd) > * {
    --bs-table-bg: rgba(255,255,255,.03);
}
.table-hover > tbody > tr:hover > * {
    --bs-table-bg: rgba(255,255,255,.06);
}