/* ==========================================================================
   Flowing Kids – Oefenbladen   [fk_oefenblad]
   Alle regels zijn gescoped op .fk-ob, zodat het thema er niet doorheen loopt.
   ========================================================================== */

.fk-ob {
	--fkob-ink: #24324a;
	--fkob-muted: #5d6b82;
	--fkob-card: #fff;
	--fkob-ok: #1f9d55;
	--fkob-okbg: #e7f7ee;
	--fkob-bad: #d64545;
	--fkob-badbg: #fdeeee;
	--fkob-focus: #3c8dde;
	box-sizing: border-box;
	max-width: 860px;
	margin: 0 auto 32px;
	padding: 20px 14px 4px;
	border-radius: 22px;
	background: var(--fkob-bg);
	color: var(--fkob-ink);
	font-family: "Nunito", ui-rounded, "Segoe UI", system-ui, -apple-system, sans-serif;
	font-size: 18px;
	line-height: 1.45;
	text-align: left;
}
.fk-ob *, .fk-ob *::before, .fk-ob *::after { box-sizing: border-box; }

/* Kleurthema's per type */
.fk-ob--breuken { --fkob-bg: #fff8ef; --fkob-line: #eadfcb; --fkob-accent: #ff7a45; --fkob-btn2: #efe6d6; --fkob-input: #cbbda5; --fkob-itembg: #fffdf9; }
.fk-ob--sommen  { --fkob-bg: #f2f8ff; --fkob-line: #d9e6f5; --fkob-accent: #2fb37a; --fkob-btn2: #e3edf8; --fkob-input: #b9cbe0; --fkob-itembg: #fbfdff; }

/* Kop */
.fk-ob .fk-ob-header { padding: 4px 4px 0; }
.fk-ob .fk-ob-title { font-family: inherit; font-size: 30px; line-height: 1.2; font-weight: 800; margin: 0 0 4px; color: var(--fkob-ink); letter-spacing: 0; text-transform: none; }
.fk-ob .fk-ob-sub { margin: 0; color: var(--fkob-muted); font-size: 17px; }
.fk-ob .fk-ob-intro { background: #fff; border: 2px dashed var(--fkob-line); border-radius: 16px; padding: 12px 14px; display: flex; gap: 14px; align-items: center; margin-top: 12px; }
.fk-ob .fk-ob-intro p { margin: 0; font-size: 16px; color: var(--fkob-muted); }

/* Onderdelen */
.fk-ob .fk-ob-section { background: var(--fkob-card); border: 2px solid var(--fkob-line); border-radius: 18px; padding: 16px 16px 6px; margin: 18px 0; }
.fk-ob .fk-ob-h { font-family: inherit; font-size: 21px; line-height: 1.3; font-weight: 800; margin: 0 0 4px; padding: 0; display: flex; gap: 10px; align-items: center; color: var(--fkob-ink); text-transform: none; letter-spacing: 0; }
.fk-ob .fk-ob-badge { background: var(--fkob-accent); color: #fff; border-radius: 50%; width: 32px; height: 32px; display: inline-grid; place-items: center; font-size: 17px; flex: none; }
.fk-ob .fk-ob-tip { color: var(--fkob-muted); font-size: 16px; margin: 0 0 12px; }
.fk-ob .fk-ob-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; margin-bottom: 10px; }
.fk-ob .fk-ob-grid.is-wide { grid-template-columns: 1fr; }

/* Sommen */
.fk-ob .fk-ob-item { border: 2px solid var(--fkob-line); border-radius: 14px; padding: 12px; display: flex; align-items: center; gap: 9px; flex-wrap: wrap; background: var(--fkob-itembg); transition: background .2s, border-color .2s; scroll-margin: 90px 0 90px; }
.fk-ob .fk-ob-item:focus-within { border-color: var(--fkob-focus); box-shadow: 0 0 0 3px rgba(60,141,222,.13); }
.fk-ob .fk-ob-item.is-ok { border-color: var(--fkob-ok); background: var(--fkob-okbg); }
.fk-ob .fk-ob-item.is-bad { border-color: var(--fkob-bad); background: var(--fkob-badbg); }
.fk-ob .fk-ob-item.is-ok .fk-ob-nr::after { content: " \2713"; color: var(--fkob-ok); }
.fk-ob .fk-ob-item.is-bad .fk-ob-nr::after { content: " \2717"; color: var(--fkob-bad); }
.fk-ob .fk-ob-item svg { display: block; flex: none; }
.fk-ob .fk-ob-nr { font-weight: 800; color: var(--fkob-muted); font-size: 15px; min-width: 24px; }
.fk-ob .fk-ob-t { font-weight: 800; font-size: 26px; white-space: nowrap; }
.fk-ob .fk-ob-op { font-weight: 800; font-size: 23px; }
.fk-ob .fk-ob-pics { font-size: 23px; letter-spacing: 1px; line-height: 1.2; background: #fff; border: 2px dashed var(--fkob-line); border-radius: 10px; padding: 4px 6px; white-space: nowrap; }
.fk-ob .fk-ob-unit { font-weight: 700; color: var(--fkob-muted); }
.fk-ob .fk-ob-hint { width: 100%; font-size: 15px; color: var(--fkob-muted); }
.fk-ob .fk-ob-story { width: 100%; margin: 0; font-size: 18px; }
.fk-ob .fk-ob-story .fk-ob-frac { font-size: 18px; }

/* Breuken */
.fk-ob .fk-ob-frac { display: inline-flex; flex-direction: column; align-items: center; font-weight: 800; font-size: 23px; line-height: 1.15; vertical-align: middle; margin: 0 2px; }
.fk-ob .fk-ob-frac > span:first-child { border-bottom: 3px solid currentColor; padding: 0 5px; }
.fk-ob .fk-ob-fin { display: inline-flex; flex-direction: column; align-items: center; gap: 4px; vertical-align: middle; }
.fk-ob .fk-ob-line { display: block; width: 56px; height: 3px; background: var(--fkob-ink); border-radius: 2px; }
.fk-ob .fk-ob-given { font-weight: 800; font-size: 23px; height: 44px; display: grid; place-items: center; }

/* Invoervakjes (hoge specificiteit tegen thema-stijlen) */
.fk-ob .fk-ob-item input.fk-ob-box {
	-webkit-appearance: none; appearance: none;
	display: inline-block; width: 64px; min-width: 0; max-width: none; height: 46px; min-height: 0;
	margin: 0; padding: 0;
	font-family: inherit; font-weight: 800; font-size: 24px; line-height: 1; text-align: center;
	color: var(--fkob-ink); background: #fff;
	border: 2px solid var(--fkob-input); border-radius: 10px; box-shadow: none; outline: none;
}
.fk-ob .fk-ob-item input.fk-ob-box.n,
.fk-ob .fk-ob-item input.fk-ob-box.d { width: 56px; height: 42px; font-size: 22px; }
.fk-ob .fk-ob-item input.fk-ob-box.wide { width: 72px; }
.fk-ob .fk-ob-item input.fk-ob-box:focus { border-color: var(--fkob-focus); box-shadow: 0 0 0 3px rgba(60,141,222,.2); }

.fk-ob .fk-ob-item select.fk-ob-cmp {
	-webkit-appearance: none; appearance: none;
	display: inline-block; width: 72px; min-width: 0; max-width: none; height: 46px; min-height: 0;
	margin: 0; padding: 0 14px 0 4px;
	font-family: inherit; font-weight: 800; font-size: 24px; line-height: 1;
	text-align: center; text-align-last: center;
	color: var(--fkob-ink);
	background: #fff url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6'%3E%3Cpath d='M0 0l5 6 5-6z' fill='%235d6b82'/%3E%3C/svg%3E") no-repeat right 7px center;
	border: 2px solid var(--fkob-input); border-radius: 10px; box-shadow: none; outline: none; cursor: pointer;
}
.fk-ob .fk-ob-item select.fk-ob-cmp:focus { border-color: var(--fkob-focus); box-shadow: 0 0 0 3px rgba(60,141,222,.2); }

/* Goede antwoorden */
.fk-ob .fk-ob-answer { display: none; width: 100%; font-size: 15px; color: var(--fkob-bad); font-weight: 700; align-items: center; gap: 6px; }
.fk-ob .fk-ob-answer .fk-ob-frac { font-size: 16px; }
.fk-ob.show-answers .fk-ob-item.is-bad .fk-ob-answer { display: flex; }

/* Knoppen onder de vragen */
.fk-ob .fk-ob-footer { background: #fff; border: 2px solid var(--fkob-line); border-radius: 18px; padding: 16px; margin: 18px 0 16px; display: flex; flex-direction: column; align-items: center; gap: 10px; scroll-margin-bottom: 24px; }
.fk-ob .fk-ob-done { margin: 0; font-weight: 800; font-size: 19px; }
.fk-ob .fk-ob-score { font-weight: 800; font-size: 17px; text-align: center; }
.fk-ob .fk-ob-score:empty { display: none; }
.fk-ob .fk-ob-buttons { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.fk-ob .fk-ob-buttons button.fk-ob-btn {
	-webkit-appearance: none; appearance: none;
	margin: 0; width: auto; height: auto; min-height: 0;
	font-family: inherit; font-weight: 800; font-size: 16px; line-height: 1.2; letter-spacing: 0; text-transform: none;
	border: none; border-radius: 12px; padding: 11px 16px; cursor: pointer; box-shadow: none;
}
.fk-ob .fk-ob-buttons button.fk-ob-btn--primary { background: var(--fkob-accent); color: #fff; }
.fk-ob .fk-ob-buttons button.fk-ob-btn--secondary { background: var(--fkob-btn2); color: var(--fkob-ink); }
.fk-ob .fk-ob-buttons button.fk-ob-btn:disabled { opacity: .45; cursor: default; }
.fk-ob .fk-ob-buttons button.fk-ob-btn:focus-visible { outline: 3px solid var(--fkob-focus); outline-offset: 2px; }

@media (max-width: 520px) {
	.fk-ob { padding: 16px 10px 4px; border-radius: 16px; }
	.fk-ob .fk-ob-title { font-size: 26px; }
	.fk-ob .fk-ob-section { padding: 14px 12px 4px; }
	.fk-ob .fk-ob-grid { grid-template-columns: 1fr; }
}