/* CGPA Calculator — minimal front-end styles (scoped under .cgpa-calc-root) */

.cgpa-calc-root {
	--cgpa-accent: #2f6f5e;
	--cgpa-accent-soft: #eaf2ef;
	--cgpa-border: #e3e3e0;
	--cgpa-bg: #fafafa;
	--cgpa-text: #232323;
	--cgpa-muted: #6b6b68;
	--cgpa-danger: #b3402f;

	box-sizing: border-box;
	max-width: 1000px;
	margin: 2em auto;
	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
	color: var(--cgpa-text);
	line-height: 1.4;
}

.cgpa-calc-root *,
.cgpa-calc-root *::before,
.cgpa-calc-root *::after {
	box-sizing: inherit;
}

.cgpa-calc-root button {
	font-family: inherit;
	cursor: pointer;
}

/* Header */
.cgpa-header {
	display: flex;
	flex-wrap: wrap;
	align-items: flex-start;
	justify-content: space-between;
	gap: 1em;
	margin-bottom: 1.25em;
}

.cgpa-header h2 {
	margin: 0 0 0.15em;
	font-size: 1.5em;
	font-weight: 700;
}

.cgpa-header p {
	margin: 0;
	color: var(--cgpa-muted);
	font-size: 0.92em;
}

.cgpa-scale-toggle {
	display: inline-flex;
	border: 1px solid var(--cgpa-border);
	border-radius: 8px;
	overflow: hidden;
	background: #fff;
}

.cgpa-scale-toggle button {
	border: none;
	background: transparent;
	padding: 0.5em 0.9em;
	font-size: 0.85em;
	color: var(--cgpa-muted);
	border-right: 1px solid var(--cgpa-border);
}

.cgpa-scale-toggle button:last-child {
	border-right: none;
}

.cgpa-scale-toggle button.is-active {
	background: var(--cgpa-accent);
	color: #fff;
}

/* Layout */
.cgpa-layout {
	display: grid;
	grid-template-columns: 1fr;
	gap: 1.25em;
}

@media (min-width: 900px) {
	.cgpa-layout {
		grid-template-columns: 2fr 1fr;
		align-items: start;
	}
}

.cgpa-semesters {
	display: flex;
	flex-direction: column;
	gap: 1em;
}

/* Semester card */
.cgpa-semester {
	border: 1px solid var(--cgpa-border);
	border-radius: 10px;
	background: #fff;
	padding: 1em 1.15em;
}

.cgpa-semester-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75em;
	margin-bottom: 0.75em;
}

.cgpa-semester-name {
	border: 1px solid transparent;
	background: transparent;
	font-weight: 600;
	font-size: 1em;
	padding: 0.3em 0.4em;
	border-radius: 6px;
	max-width: 60%;
}

.cgpa-semester-name:hover,
.cgpa-semester-name:focus {
	border-color: var(--cgpa-border);
	background: var(--cgpa-bg);
	outline: none;
}

.cgpa-semester-result {
	text-align: right;
}

.cgpa-semester-result .cgpa-label {
	display: block;
	font-size: 0.72em;
	color: var(--cgpa-muted);
	text-transform: uppercase;
	letter-spacing: 0.04em;
}

.cgpa-semester-result .cgpa-value {
	display: block;
	font-size: 1.15em;
	font-weight: 700;
	color: var(--cgpa-accent);
}

.cgpa-icon-btn {
	border: 1px solid var(--cgpa-border);
	background: #fff;
	color: var(--cgpa-muted);
	border-radius: 6px;
	width: 30px;
	height: 30px;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	font-size: 0.95em;
	line-height: 1;
}

.cgpa-icon-btn:hover {
	color: var(--cgpa-danger);
	border-color: var(--cgpa-danger);
}

/* Course table */
.cgpa-course-table {
	width: 100%;
	border-collapse: collapse;
}

.cgpa-course-table th {
	text-align: left;
	font-size: 0.75em;
	color: var(--cgpa-muted);
	text-transform: uppercase;
	letter-spacing: 0.03em;
	font-weight: 600;
	padding: 0 0.4em 0.4em;
}

.cgpa-course-table td {
	padding: 0.25em 0.4em;
	vertical-align: middle;
}

.cgpa-course-table th:nth-child(2),
.cgpa-course-table th:nth-child(3),
.cgpa-course-table td:nth-child(2),
.cgpa-course-table td:nth-child(3) {
	width: 110px;
}

.cgpa-course-table th:last-child,
.cgpa-course-table td:last-child {
	width: 34px;
}

.cgpa-course-table input {
	width: 100%;
	border: 1px solid var(--cgpa-border);
	border-radius: 6px;
	padding: 0.45em 0.55em;
	font-size: 0.9em;
	background: var(--cgpa-bg);
	color: var(--cgpa-text);
}

.cgpa-course-table input:focus {
	outline: none;
	border-color: var(--cgpa-accent);
	background: #fff;
}

.cgpa-remove-course {
	border: none;
	background: transparent;
	color: var(--cgpa-muted);
	font-size: 1.1em;
	width: 28px;
	height: 28px;
	border-radius: 6px;
}

.cgpa-remove-course:hover {
	color: var(--cgpa-danger);
	background: #fbeceA;
}

.cgpa-semester-footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-top: 0.6em;
	padding-top: 0.6em;
	border-top: 1px dashed var(--cgpa-border);
}

.cgpa-add-course {
	border: none;
	background: transparent;
	color: var(--cgpa-accent);
	font-size: 0.88em;
	font-weight: 600;
	padding: 0.3em 0;
}

.cgpa-add-course:hover {
	text-decoration: underline;
}

.cgpa-semester-credits {
	font-size: 0.82em;
	color: var(--cgpa-muted);
}

.cgpa-add-semester {
	border: 1px dashed var(--cgpa-border);
	background: #fff;
	color: var(--cgpa-accent);
	border-radius: 10px;
	padding: 0.8em;
	font-weight: 600;
	font-size: 0.92em;
	width: 100%;
}

.cgpa-add-semester:hover {
	background: var(--cgpa-accent-soft);
}

/* Summary panel */
.cgpa-summary {
	border: 1px solid var(--cgpa-border);
	border-radius: 10px;
	background: #fff;
	padding: 1.25em;
	position: sticky;
	top: 1em;
}

.cgpa-summary-label {
	font-size: 0.75em;
	text-transform: uppercase;
	letter-spacing: 0.04em;
	color: var(--cgpa-muted);
	margin: 0 0 0.3em;
}

.cgpa-summary-value {
	font-size: 2.4em;
	font-weight: 700;
	color: var(--cgpa-accent);
	margin: 0;
	line-height: 1.1;
}

.cgpa-summary-value .cgpa-unit {
	font-size: 0.4em;
	color: var(--cgpa-muted);
	font-weight: 600;
	margin-left: 0.15em;
}

.cgpa-summary-percentage {
	margin-top: 0.4em;
	font-size: 0.85em;
	color: var(--cgpa-muted);
}

.cgpa-summary-percentage strong {
	color: var(--cgpa-text);
}

.cgpa-summary-rows {
	margin-top: 1em;
	border-top: 1px solid var(--cgpa-border);
	padding-top: 0.75em;
	display: flex;
	flex-direction: column;
	gap: 0.5em;
}

.cgpa-summary-row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	font-size: 0.9em;
}

.cgpa-summary-row span:first-child {
	color: var(--cgpa-muted);
}

.cgpa-summary-row span:last-child {
	font-weight: 600;
}

.cgpa-reset {
	margin-top: 1.1em;
	width: 100%;
	border: 1px solid var(--cgpa-border);
	background: var(--cgpa-bg);
	color: var(--cgpa-text);
	border-radius: 8px;
	padding: 0.65em;
	font-size: 0.88em;
	font-weight: 600;
}

.cgpa-reset:hover {
	border-color: var(--cgpa-danger);
	color: var(--cgpa-danger);
}

.cgpa-disclaimer {
	margin-top: 0.9em;
	font-size: 0.72em;
	color: var(--cgpa-muted);
}