@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@500;600;700&family=Inter:wght@400;500;600&display=swap');

.cmfeet-widget {
	--cf-bg: #0a1826;
	--cf-card: #0d2036;
	--cf-panel: #0f2740;
	--cf-panel-border: #1c3a52;
	--cf-navy-pill: #122a44;
	--cf-teal: #2dd4bf;
	--cf-teal-strong: #14b8a6;
	--cf-teal-dim: #7fd9cd;
	--cf-ink: #eaf6f6;
	--cf-muted: #8fa6b8;
	--cf-white: #ffffff;
	--cf-font-display: 'Space Grotesk', 'Segoe UI', sans-serif;
	--cf-font-body: 'Inter', 'Segoe UI', sans-serif;
	--cf-font-mono: 'Space Grotesk', 'Courier New', monospace;

	display: flex;
	justify-content: center;
	background: var(--cf-bg);
	padding: 32px 16px;
	border-radius: 20px;
	font-family: var(--cf-font-body);
	color: var(--cf-ink);
}
.cmfeet-widget *,
.cmfeet-widget *::before,
.cmfeet-widget *::after {
	box-sizing: border-box;
}
.cmfeet-widget button {
	font: inherit;
}

.cmfeet-card {
	width: 100%;
	max-width: 680px;
	background: var(--cf-card);
	border: 1px solid var(--cf-panel-border);
	border-radius: 20px;
	padding: 32px 32px 28px;
	box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.cmfeet-eyebrow {
	text-align: center;
	font-family: var(--cf-font-body);
	font-weight: 700;
	font-size: 0.75rem;
	letter-spacing: 0.12em;
	text-transform: uppercase;
	color: var(--cf-teal);
	margin-bottom: 6px;
}
.cmfeet-title {
	text-align: center;
	font-family: var(--cf-font-display);
	font-weight: 700;
	font-size: 1.6rem;
	color: var(--cf-white);
	margin: 0 0 22px;
}

.cmfeet-toggle-row {
	display: flex;
	justify-content: center;
	gap: 10px;
	margin-bottom: 22px;
	flex-wrap: wrap;
}
.cmfeet-toggle-btn {
	appearance: none;
	border: 1px solid var(--cf-panel-border);
	background: var(--cf-navy-pill);
	color: var(--cf-teal-dim);
	font-family: var(--cf-font-body);
	font-weight: 600;
	font-size: 0.88rem;
	padding: 10px 18px;
	border-radius: 999px;
	cursor: pointer;
	transition: all 0.15s ease;
}
.cmfeet-toggle-btn.is-active {
	background: var(--cf-teal-strong);
	border-color: var(--cf-teal-strong);
	color: #06231f;
}

.cmfeet-input-row {
	display: flex;
	align-items: center;
	gap: 10px;
	margin-bottom: 22px;
}
.cmfeet-field { flex: 1; }
.cmfeet-field label {
	display: block;
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--cf-teal-dim);
	margin-bottom: 6px;
}
.cmfeet-field input {
	width: 100%;
	border: none;
	border-radius: 10px;
	padding: 13px 14px;
	font-family: var(--cf-font-mono);
	font-size: 1rem;
	background: var(--cf-white);
	color: #10233a;
	outline: none;
}
.cmfeet-field input:focus {
	box-shadow: 0 0 0 3px rgba(45, 212, 191, 0.45);
}
.cmfeet-convert-btn {
	appearance: none;
	align-self: flex-end;
	border: none;
	border-radius: 10px;
	padding: 13px 24px;
	background: linear-gradient(135deg, var(--cf-teal-strong), var(--cf-teal));
	color: #06231f;
	font-family: var(--cf-font-display);
	font-weight: 700;
	font-size: 1rem;
	cursor: pointer;
	transition: transform 0.1s ease;
	white-space: nowrap;
}
.cmfeet-convert-btn:hover { transform: translateY(-1px); }
.cmfeet-convert-btn:active { transform: translateY(0); }

.cmfeet-examples-label {
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--cf-muted);
	margin-bottom: 10px;
}
.cmfeet-examples-row {
	display: flex;
	flex-wrap: wrap;
	gap: 8px;
	margin-bottom: 26px;
}
.cmfeet-example-chip {
	appearance: none;
	border: 1px solid var(--cf-panel-border);
	background: var(--cf-navy-pill);
	color: var(--cf-teal-dim);
	font-family: var(--cf-font-body);
	font-size: 0.82rem;
	padding: 8px 14px;
	border-radius: 999px;
	cursor: pointer;
	transition: all 0.15s ease;
}
.cmfeet-example-chip:hover {
	border-color: var(--cf-teal);
	color: var(--cf-white);
}

.cmfeet-result-panel {
	background: var(--cf-panel);
	border: 1px solid var(--cf-panel-border);
	border-radius: 16px;
	padding: 22px 22px 20px;
	margin-bottom: 26px;
}
.cmfeet-result-top { text-align: center; margin-bottom: 18px; }
.cmfeet-result-label {
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--cf-muted);
	margin-bottom: 8px;
}
.cmfeet-result-value {
	font-family: var(--cf-font-display);
	font-weight: 700;
	font-size: 2rem;
	color: var(--cf-teal);
}
.cmfeet-result-sub {
	font-size: 0.85rem;
	color: var(--cf-muted);
	margin-top: 6px;
}
.cmfeet-result-sub strong { color: var(--cf-ink); }

.cmfeet-how-label {
	font-size: 0.72rem;
	font-weight: 700;
	letter-spacing: 0.08em;
	text-transform: uppercase;
	color: var(--cf-muted);
	margin-bottom: 12px;
}
.cmfeet-formula-row {
	display: flex;
	align-items: center;
	gap: 10px;
	flex-wrap: wrap;
}
.cmfeet-formula-box {
	flex: 1;
	min-width: 110px;
	background: var(--cf-navy-pill);
	border: 1px solid var(--cf-panel-border);
	border-radius: 10px;
	padding: 10px 12px;
}
.cmfeet-formula-box.is-result {
	border-color: var(--cf-teal);
	background: rgba(45, 212, 191, 0.08);
}
.cmfeet-formula-box .cmfeet-fb-label {
	font-size: 0.65rem;
	font-weight: 700;
	letter-spacing: 0.06em;
	text-transform: uppercase;
	color: var(--cf-muted);
	margin-bottom: 4px;
}
.cmfeet-formula-box .cmfeet-fb-value {
	font-family: var(--cf-font-mono);
	font-weight: 700;
	font-size: 1.02rem;
	color: var(--cf-ink);
}
.cmfeet-formula-box.is-result .cmfeet-fb-value { color: var(--cf-teal); }
.cmfeet-formula-op {
	font-family: var(--cf-font-display);
	font-weight: 700;
	font-size: 1.15rem;
	color: var(--cf-muted);
}

.cmfeet-error-box {
	background: rgba(255, 138, 76, 0.12);
	border: 1px solid rgba(255, 138, 76, 0.4);
	color: #ffb98a;
	border-radius: 10px;
	padding: 12px 14px;
	font-size: 0.88rem;
}

/* ---------- History ---------- */
.cmfeet-history-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	flex-wrap: wrap;
	gap: 10px;
	margin-bottom: 14px;
}
.cmfeet-history-title {
	font-family: var(--cf-font-display);
	font-weight: 700;
	font-size: 1.05rem;
	color: var(--cf-white);
}
.cmfeet-history-actions {
	display: flex;
	gap: 8px;
	flex-wrap: wrap;
}
.cmfeet-action-btn {
	appearance: none;
	border: 1px solid var(--cf-panel-border);
	background: var(--cf-navy-pill);
	color: var(--cf-teal-dim);
	font-family: var(--cf-font-body);
	font-weight: 600;
	font-size: 0.8rem;
	padding: 8px 14px;
	border-radius: 8px;
	cursor: pointer;
	transition: all 0.15s ease;
}
.cmfeet-action-btn:hover {
	border-color: var(--cf-teal);
	color: var(--cf-white);
}
.cmfeet-action-btn:disabled {
	opacity: 0.45;
	cursor: not-allowed;
}
.cmfeet-action-btn.is-danger:hover {
	border-color: #ff8a8a;
	color: #ff8a8a;
}

.cmfeet-history-table-wrap {
	max-height: 260px;
	overflow-y: auto;
	border: 1px solid var(--cf-panel-border);
	border-radius: 12px;
}
.cmfeet-history-table {
	width: 100%;
	border-collapse: collapse;
	font-size: 0.85rem;
}
.cmfeet-history-table th {
	position: sticky;
	top: 0;
	background: var(--cf-navy-pill);
	color: var(--cf-teal-dim);
	text-align: left;
	font-size: 0.7rem;
	font-weight: 700;
	letter-spacing: 0.05em;
	text-transform: uppercase;
	padding: 10px 12px;
}
.cmfeet-history-table td {
	padding: 9px 12px;
	border-top: 1px solid var(--cf-panel-border);
	color: var(--cf-ink);
	font-family: var(--cf-font-mono);
}
.cmfeet-history-empty {
	padding: 20px 12px;
	text-align: center;
	color: var(--cf-muted);
	font-size: 0.85rem;
}

@media (max-width: 480px) {
	.cmfeet-card { padding: 24px 18px; }
	.cmfeet-input-row { flex-direction: column; align-items: stretch; }
	.cmfeet-formula-row { flex-direction: column; align-items: stretch; }
	.cmfeet-widget { padding: 20px 10px; }
	.cmfeet-history-table { font-size: 0.78rem; }
}