.wat-app {
	--wat-accent: #0f766e;
	--wat-accent-ink: #ffffff;
	--wat-bg: #ffffff;
	--wat-card: #f4f7f7;
	--wat-ink: #14201f;
	--wat-muted: #51605e;
	--wat-border: #d5dedd;
	box-sizing: border-box;
	max-width: 1200px;
	margin: 0 auto;
	padding: 24px;
	background: var(--wat-bg);
	color: var(--wat-ink);
	font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
	line-height: 1.4;
}
.wat-app *, .wat-app *::before, .wat-app *::after { box-sizing: inherit; }
.wat-app:fullscreen { max-width: none; overflow: auto; padding: 40px; }
.wat-app [hidden] { display: none !important; }

.wat-app h2 { margin: 0 0 16px; font-size: 1.8rem; }
.wat-field { margin-bottom: 20px; }
.wat-label { display: block; font-weight: 600; margin-bottom: 6px; }
.wat-hint { color: var(--wat-muted); font-size: .9rem; font-weight: 400; }
.wat-names {
	width: 100%; min-height: 220px; padding: 12px; font: inherit; font-size: 1rem;
	border: 1px solid var(--wat-border); border-radius: 8px; resize: vertical;
}
.wat-count { color: var(--wat-muted); font-size: .9rem; margin-top: 4px; }

.wat-options { display: flex; flex-wrap: wrap; gap: 24px; align-items: flex-end; }
.wat-toggle { display: inline-flex; border: 1px solid var(--wat-border); border-radius: 8px; overflow: hidden; }
.wat-toggle input { position: absolute; opacity: 0; pointer-events: none; }
.wat-toggle label { padding: 10px 18px; cursor: pointer; font-weight: 600; }
.wat-toggle input:checked + label { background: var(--wat-accent); color: var(--wat-accent-ink); }
.wat-toggle input:focus-visible + label { outline: 3px solid #f59e0b; outline-offset: -3px; }
.wat-size { font: inherit; padding: 9px 12px; border: 1px solid var(--wat-border); border-radius: 8px; }

.wat-btn {
	font: inherit; font-weight: 600; padding: 12px 22px; border-radius: 8px; cursor: pointer;
	border: 1px solid var(--wat-accent); background: var(--wat-bg); color: var(--wat-accent);
}
.wat-btn-primary { background: var(--wat-accent); color: var(--wat-accent-ink); font-size: 1.1rem; }
.wat-btn:hover { filter: brightness(.95); }
.wat-message { color: #b42318; font-weight: 600; margin-top: 12px; min-height: 1.4em; }

.wat-upload { display: flex; flex-wrap: wrap; gap: 24px; padding: 12px; border: 1px dashed var(--wat-border); border-radius: 8px; }
.wat-route-info { color: var(--wat-muted); font-size: .9rem; margin-left: 6px; }

.wat-toolbar { display: flex; flex-wrap: wrap; gap: 10px; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.wat-toolbar-buttons { display: flex; flex-wrap: wrap; gap: 10px; }
.wat-result-heading { margin: 0; font-size: 2rem; }
.wat-note { color: var(--wat-muted); margin: 0 0 12px; }

.wat-results { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 18px; }
.wat-card { background: var(--wat-card); border: 1px solid var(--wat-border); border-top: 6px solid var(--wat-accent); border-radius: 10px; padding: 18px 20px; }
.wat-card-title { font-size: 1rem; text-transform: uppercase; letter-spacing: .06em; color: var(--wat-accent); font-weight: 700; margin-bottom: 8px; }
.wat-members { list-style: none; margin: 0 0 14px; padding: 0; font-size: 1.5rem; font-weight: 600; }
.wat-members li { margin: 2px 0; }
.wat-route { border-top: 1px solid var(--wat-border); padding-top: 10px; display: flex; flex-direction: column; gap: 2px; font-size: 1.15rem; }
.wat-route-label { font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--wat-muted); }
.wat-route-desc { color: var(--wat-muted); font-size: 1rem; }

@media (max-width: 600px) {
	.wat-app { padding: 16px; }
	.wat-result-heading { font-size: 1.4rem; }
	.wat-members { font-size: 1.25rem; }
}