/* =========================
   Algemene button styling
========================= */
:root{
    /* Primary (o.a. "Volgende pagina") */
    --btn-primary-bg: #0A66C2;
    --btn-primary-hover: #085AA8;
    --btn-primary-active: #064884;
    --btn-primary-text: #FFFFFF;

    /* Focus ring kleuren */
    --focus-neutral-outline: #888888;
    --focus-neutral-shadow: rgba(136,136,136,0.5);

    --focus-primary-outline: rgba(10,102,194,0.95);
    --focus-primary-shadow: rgba(10,102,194,0.35);
}

/* Base */
button, .btn, input[type="submit"] {
    background-color: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: var(--radius-md);
    padding: 8px 14px;
    color: var(--text-main);
    cursor: pointer;
    transition: background-color 0.25s ease, border-color 0.25s ease, color 0.25s ease, box-shadow 0.2s ease, outline 0.2s ease, transform 0.05s ease;
    font: inherit;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    text-decoration: none;
}

/* Disabled */
button:disabled,
.btn:disabled,
input[type="submit"]:disabled,
button[aria-disabled="true"],
.btn[aria-disabled="true"],
input[type="submit"][aria-disabled="true"]{
    opacity: 0.55;
    cursor: not-allowed;
    box-shadow: none;
}

/* Hover */
button:hover,
.btn:hover,
input[type="submit"]:hover {
    background-color: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.2);
    color: #ffffff;
    outline: 1.5px solid var(--focus-neutral-outline);
    outline-offset: 2px;
    box-shadow: 0 0 4px var(--focus-neutral-shadow);
}

/* Focus (neutraal) */
button:focus-visible,
.btn:focus-visible,
input[type="submit"]:focus-visible {
    outline: 2px solid var(--focus-neutral-outline);
    outline-offset: 2px;
    box-shadow: 0 0 4px var(--focus-neutral-shadow);
}

/* Fallback (voor browsers zonder :focus-visible) */
button:focus,
.btn:focus,
input[type="submit"]:focus {
    outline: 2px solid var(--focus-neutral-outline);
    outline-offset: 2px;
    box-shadow: 0 0 4px var(--focus-neutral-shadow);
}

/* =========================
   Primaire button
   (nieuwe standaard: Volgende pagina blauw)
   Alleen background + color + eigen focus-ring
========================= */
.btn-primary,
button.btn-primary,
.btn.btn-primary {
    background-color: var(--btn-primary-bg);
    color: var(--btn-primary-text);
}

.btn-primary:hover,
button.btn-primary:hover,
.btn.btn-primary:hover {
    background-color: var(--btn-primary-hover);
    color: var(--btn-primary-text);
}

.btn-primary:active,
button.btn-primary:active,
.btn.btn-primary:active {
    background-color: var(--btn-primary-active);
    color: var(--btn-primary-text);
    transform: translateY(1px);
}

/* Primary focus-ring (blauw i.p.v. grijs) */
.btn-primary:focus-visible,
button.btn-primary:focus-visible,
.btn.btn-primary:focus-visible {
    outline: 2px solid var(--focus-primary-outline);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px var(--focus-primary-shadow);
}

/* Fallback focus voor primary */
.btn-primary:focus,
button.btn-primary:focus,
.btn.btn-primary:focus {
    outline: 2px solid var(--focus-primary-outline);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px var(--focus-primary-shadow);
}

/* =========================
   Secundaire button
========================= */
.btn-secondary {
    background-color: rgba(255,255,255,0.06);
    border: 1px solid rgba(255,255,255,0.18);
    /* color: #d4d4d4; */
}

.btn-secondary:hover {
    background-color: rgba(255,255,255,0.12);
    border-color: rgba(255,255,255,0.28);
    /* color: #fff; */
}

/* =========================
   Danger (rood)
========================= */
.btn-danger {
    background-color: #cc0000;
    border: 1px solid #cc0000;
    /* color: #fff; */
}

.btn-danger:hover {
    background-color: #a30000;
    border-color: #a30000;
}

/* =========================
   Buttons in popups/forms
========================= */
.btn-small {
    padding: 4px 8px;
    font-size: 12px;
}

.btn-large {
    padding: 10px 18px;
    font-size: 16px;
}

/* Popup knoppen */
.popup .popup-content .popup-buttons button {
    width: auto;
    flex: 0 0 auto;
    margin: 0;
}

/* Highlight voor de navbar knop */
.nav-result-highlight {
    border: 2px solid #4CAF50; /* groene rand */
}



/* Maak hover/focus feedback van primary consistent (blauw i.p.v. grijs) */
.btn-primary:hover,
button.btn-primary:hover,
.btn.btn-primary:hover {
  outline: 1.5px solid rgba(10,102,194,0.75);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(10,102,194,0.18);
}

.btn-primary:focus-visible,
button.btn-primary:focus-visible,
.btn.btn-primary:focus-visible {
  outline: 2px solid rgba(10,102,194,0.95);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(10,102,194,0.35);
}