/* =========================================================
   Tip Calculator — Teal / Navy theme
   (shares the same design tokens as the Subnet / Wildcard / CIDR /
   Mileage calculator plugins for a consistent product family look)
   ========================================================= */
.tpc-widget {
	--tpc-bg:            #0A1930;
	--tpc-panel:         #0F2440;
	--tpc-panel-raised:  #12294A;
	--tpc-border:        #1E3A5C;
	--tpc-border-soft:   #16324F;
	--tpc-teal:          #2DD4BF;
	--tpc-teal-dim:      #1B8F82;
	--tpc-teal-soft:     rgba(45, 212, 191, 0.12);
	--tpc-navy-accent:   #3B6EA5;
	--tpc-text:          #E7F1F6;
	--tpc-text-muted:    #7E97B2;
	--tpc-text-faint:    #5A7290;
	--tpc-error:         #FF7A7A;
	--tpc-amber:         #FF8F70;
	--tpc-blue:          #8FD6FF;
	--tpc-green:         #6EE7A8;
	--tpc-radius:        10px;
	--tpc-font-display:  'Space Grotesk', 'Segoe UI', sans-serif;
	--tpc-font-mono:     'IBM Plex Mono', 'SFMono-Regular', Consolas, monospace;

	box-sizing: border-box;
	max-width: 620px;
	margin: 2rem auto;
	background: linear-gradient(180deg, var(--tpc-panel) 0%, var(--tpc-bg) 100%);
	border: 1px solid var(--tpc-border);
	border-radius: 16px;
	padding: 0 0 1.75rem;
	color: var(--tpc-text);
	font-family: var(--tpc-font-display);
	box-shadow: 0 20px 50px -20px rgba(0, 0, 0, 0.6);
	overflow: hidden;
}

.tpc-widget *,
.tpc-widget *::before,
.tpc-widget *::after {
	box-sizing: border-box;
}

/* ---------- Header ---------- */
.tpc-header {
	display: flex;
	align-items: center;
	gap: 0.65rem;
	padding: 1.15rem 1.5rem;
	background: linear-gradient(90deg, #123653 0%, #0E2846 100%);
	border-bottom: 1px solid var(--tpc-border);
}

.tpc-header__icon {
	display: inline-flex;
	color: var(--tpc-teal);
	filter: drop-shadow(0 0 6px rgba(45, 212, 191, 0.45));
}

.tpc-header__title {
	margin: 0;
	font-size: 1.15rem;
	font-weight: 700;
	letter-spacing: 0.01em;
	color: var(--tpc-text);
}

/* ---------- Grid layout ---------- */
.tpc-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 1.1rem 1.25rem;
	padding: 1.5rem 1.5rem 0;
}

.tpc-field--full {
	grid-column: 1 / -1;
}

.tpc-label {
	display: block;
	font-size: 0.72rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.08em;
	color: var(--tpc-text-muted);
	margin-bottom: 0.4rem;
}

.tpc-unit-tag {
	text-transform: none;
	color: var(--tpc-teal);
	font-weight: 500;
	letter-spacing: 0;
}

/* ---------- Inputs ---------- */
.tpc-input {
	width: 100%;
	font-family: var(--tpc-font-mono);
	font-size: 0.95rem;
	border-radius: var(--tpc-radius);
	padding: 0.6rem 0.75rem;
	line-height: 1.3;
	background: var(--tpc-panel-raised);
	border: 1px solid var(--tpc-border);
	color: var(--tpc-text);
	appearance: none;
	transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.tpc-input::placeholder {
	color: var(--tpc-text-faint);
}

.tpc-input:hover {
	border-color: var(--tpc-navy-accent);
}

.tpc-input:focus {
	outline: none;
	border-color: var(--tpc-teal);
	box-shadow: 0 0 0 3px var(--tpc-teal-soft);
}

.tpc-input.tpc-input--invalid {
	border-color: var(--tpc-error);
	box-shadow: 0 0 0 3px rgba(255, 122, 122, 0.14);
}

.tpc-select {
	background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='10' height='6'><path d='M0 0l5 6 5-6z' fill='%237E97B2'/></svg>");
	background-repeat: no-repeat;
	background-position: right 0.75rem center;
	padding-right: 1.9rem;
	cursor: pointer;
	color: var(--tpc-teal);
}

.tpc-input-group {
	display: flex;
	gap: 0.5rem;
}

.tpc-input-currency {
	flex: 0 0 40%;
	font-size: 0.82rem;
}

.tpc-input-bill {
	flex: 1;
}

/* ---------- Pill radio group ---------- */
.tpc-pill-row {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
}

.tpc-pill {
	position: relative;
	flex: 1;
	min-width: fit-content;
}

.tpc-pill input {
	position: absolute;
	opacity: 0;
	inset: 0;
	margin: 0;
	cursor: pointer;
}

.tpc-pill span {
	display: flex;
	align-items: center;
	justify-content: center;
	height: 2.4rem;
	padding: 0 0.75rem;
	border-radius: var(--tpc-radius);
	background: var(--tpc-panel-raised);
	border: 1px solid var(--tpc-border);
	color: var(--tpc-text-muted);
	font-weight: 600;
	font-size: 0.85rem;
	white-space: nowrap;
	transition: all 0.15s ease;
}

.tpc-pill input:hover + span {
	border-color: var(--tpc-navy-accent);
	color: var(--tpc-text);
}

.tpc-pill input:checked + span {
	background: linear-gradient(135deg, var(--tpc-teal-dim), var(--tpc-teal));
	border-color: var(--tpc-teal);
	color: #06201C;
	box-shadow: 0 0 0 3px var(--tpc-teal-soft);
}

/* ---------- Tip percentage presets + slider ---------- */
.tpc-tip-presets {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-bottom: 0.75rem;
}

.tpc-preset {
	flex: 1;
	min-width: 3.6rem;
	height: 2.4rem;
	border-radius: var(--tpc-radius);
	background: var(--tpc-panel-raised);
	border: 1px solid var(--tpc-border);
	color: var(--tpc-text-muted);
	font-family: var(--tpc-font-display);
	font-weight: 700;
	font-size: 0.85rem;
	cursor: pointer;
	transition: all 0.15s ease;
}

.tpc-preset:hover {
	border-color: var(--tpc-navy-accent);
	color: var(--tpc-text);
}

.tpc-preset.is-active {
	background: linear-gradient(135deg, var(--tpc-teal-dim), var(--tpc-teal));
	border-color: var(--tpc-teal);
	color: #06201C;
	box-shadow: 0 0 0 3px var(--tpc-teal-soft);
}

.tpc-tip-slider-row {
	display: flex;
	align-items: center;
	gap: 0.9rem;
}

.tpc-slider {
	flex: 1;
	appearance: none;
	height: 6px;
	border-radius: 999px;
	background: var(--tpc-border);
	outline: none;
}

.tpc-slider::-webkit-slider-thumb {
	appearance: none;
	width: 18px;
	height: 18px;
	border-radius: 50%;
	background: var(--tpc-teal);
	border: 3px solid var(--tpc-bg);
	box-shadow: 0 0 0 2px var(--tpc-teal);
	cursor: pointer;
}

.tpc-slider::-moz-range-thumb {
	width: 18px;
	height: 18px;
	border-radius: 50%;
	background: var(--tpc-teal);
	border: 3px solid var(--tpc-bg);
	box-shadow: 0 0 0 2px var(--tpc-teal);
	cursor: pointer;
}

.tpc-tip-number-wrap {
	position: relative;
	flex: 0 0 5.5rem;
}

.tpc-input-tip {
	padding-right: 1.6rem;
	text-align: right;
}

.tpc-percent-sign {
	position: absolute;
	right: 0.7rem;
	top: 50%;
	transform: translateY(-50%);
	color: var(--tpc-text-muted);
	font-family: var(--tpc-font-mono);
	pointer-events: none;
}

/* ---------- Stepper (split between) ---------- */
.tpc-stepper {
	display: flex;
	align-items: stretch;
	gap: 0.4rem;
}

.tpc-stepper__btn {
	flex: 0 0 2.4rem;
	border-radius: var(--tpc-radius);
	background: var(--tpc-panel-raised);
	border: 1px solid var(--tpc-border);
	color: var(--tpc-teal);
	font-size: 1.1rem;
	font-weight: 700;
	cursor: pointer;
	transition: border-color 0.15s ease;
}

.tpc-stepper__btn:hover {
	border-color: var(--tpc-teal);
}

.tpc-input-people {
	text-align: center;
}

/* ---------- Checkbox ---------- */
.tpc-field--checkbox {
	display: flex;
	align-items: center;
}

.tpc-checkbox {
	display: flex;
	align-items: center;
	gap: 0.55rem;
	cursor: pointer;
	font-size: 0.85rem;
	color: var(--tpc-text-muted);
	user-select: none;
}

.tpc-checkbox input {
	width: 18px;
	height: 18px;
	accent-color: var(--tpc-teal);
	cursor: pointer;
}

/* ---------- Error message ---------- */
.tpc-error {
	grid-column: 1 / -1;
	display: none;
	font-size: 0.82rem;
	color: var(--tpc-error);
	background: rgba(255, 122, 122, 0.08);
	border: 1px solid rgba(255, 122, 122, 0.35);
	border-radius: var(--tpc-radius);
	padding: 0.6rem 0.85rem;
}

.tpc-error.is-visible {
	display: block;
}

/* ---------- Results ---------- */
.tpc-results {
	grid-column: 1 / -1;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 0.9rem;
	margin-top: 0.4rem;
	padding-top: 1.4rem;
	border-top: 1px dashed var(--tpc-border);
}

.tpc-result-card {
	background: var(--tpc-bg);
	border: 1px solid var(--tpc-border-soft);
	border-radius: var(--tpc-radius);
	padding: 0.75rem 0.9rem;
	display: flex;
	flex-direction: column;
	gap: 0.3rem;
}

.tpc-result-label {
	font-size: 0.68rem;
	font-weight: 600;
	text-transform: uppercase;
	letter-spacing: 0.07em;
	color: var(--tpc-text-muted);
}

.tpc-result-value {
	font-family: var(--tpc-font-mono);
	font-size: 1.2rem;
	font-weight: 600;
	color: var(--tpc-teal);
}

.tpc-result-tip { color: var(--tpc-amber); }
.tpc-result-total { color: var(--tpc-green); }
.tpc-result-tip-person,
.tpc-result-total-person { color: var(--tpc-blue); }

/* ---------- Responsive ---------- */
@media (max-width: 560px) {
	.tpc-grid {
		grid-template-columns: 1fr;
		padding: 1.25rem 1.1rem 0;
	}

	.tpc-results {
		grid-template-columns: 1fr;
	}

	.tpc-header {
		padding: 1rem 1.1rem;
	}

	.tpc-widget {
		margin: 1rem auto;
		border-radius: 12px;
	}
}