/* ── Variables (paleta DentAll) ── */
:root {
    --primary-dark: #004e64;
    --primary-teal: #00a7b5;
    --footer-light: #EBF8F9;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; }

html {
    height: 100%;
}

body {
    margin: 0;
    padding: 0;
    min-height: 100%;
    display: flex;
    flex-direction: column;
    font-family: sans-serif;
    background-color: #e9ecef;
}

/* ── Cabecera ── */
.viewer-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background-color: var(--primary-dark);
    padding: 10px 0;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.viewer-header .logo-area img {
    height: 50px;
    width: auto;
}

.viewer-header .controls-area {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: flex-end;
}

/* ── Controles del header ── */
.ctrl-group {
    display: flex;
    align-items: center;
    gap: 0.25rem;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    padding: 4px 6px;
}

.ctrl-group .btn {
    min-width: 40px;
    min-height: 40px;
    font-size: 1.1rem;
    padding: 6px 10px;
}

#page-info {
    color: #fff;
    font-weight: 600;
    font-size: 0.95rem;
    white-space: nowrap;
}

/* ── Contenedor del canvas (viewer) ── */
.viewer-container {
    flex: 1;
    overflow: auto;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding: 20px 10px;
    background-color: #e9ecef;
    -webkit-overflow-scrolling: touch;
}

#pdf-render {
    display: block;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.25);
    background-color: #fff;
    flex-shrink: 0;
}

/* ── Error ── */
#error-message {
    position: sticky;
    top: 0;
    z-index: 1040;
    margin: 0 auto;
    max-width: 500px;
    border-radius: 0 0 8px 8px;
}

/* ── Footer ── */
.viewer-footer {
    flex-shrink: 0;
}

.footer-contact {
    background-color: var(--footer-light);
    padding: 40px 0 30px;
}

.footer-contact h6 {
    font-weight: 700;
    color: var(--primary-dark);
    font-size: 1.05rem;
    margin-bottom: 12px;
    text-transform: uppercase;
}

.footer-contact p {
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: #333;
}

.footer-contact p i {
    color: var(--primary-teal);
    margin-right: 6px;
    width: 16px;
    text-align: center;
}

.footer-bottom {
    background-color: var(--primary-dark);
    padding: 20px 0;
    text-align: center;
}

.footer-bottom p {
    color: #fff;
    margin: 0;
    font-size: 0.9rem;
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .viewer-header .logo-area img {
        height: 30px;
    }

    .viewer-header .controls-area {
        gap: 0.3rem;
    }

    .ctrl-group .btn {
        min-width: 36px;
        min-height: 36px;
        font-size: 0.95rem;
        padding: 4px 8px;
    }

    .footer-contact {
        padding: 25px 0 20px;
    }

    .footer-contact .col-12 {
        margin-bottom: 20px;
    }
    .footer-contact .col-12:last-child {
        margin-bottom: 0;
    }
}

@media (max-width: 576px) {
    #page-info {
        font-size: 0.85rem;
    }
}