/**
 * Homework Helper Styles
 *
 * Theme-agnostic styling that adapts to WordPress themes.
 * Minimal opinionated styles - inherits colors, fonts, spacing from active theme.
 *
 * @package Lumination
 * @since 1.0.0
 */

/* ── Utilities ── */

@keyframes lum-fadeIn {
	from { opacity: 0; }
	to { opacity: 1; }
}

@keyframes lum-fadeInUp {
	from {
		opacity: 0;
		transform: translateY(12px);
	}
	to {
		opacity: 1;
		transform: translateY(0);
	}
}

/* ── Container ── */

.lumination-homework-helper {
	max-width: 800px;
	margin: 2rem auto;
	animation: lum-fadeIn 0.4s ease;
}

.lumination-container {
	padding: 1.5rem;
	border: 1px solid currentColor;
	border-opacity: 0.15;
	border-radius: 8px;
}

/* ── Header ── */

.lumination-header {
	margin-bottom: 1.5rem;
}

.lumination-header h2 {
	margin-top: 0;
	margin-bottom: 0.5rem;
}

.lumination-description {
	margin: 0;
	opacity: 0.7;
}

/* ── Input Section ── */

.lumination-input-section {
	display: flex;
	flex-direction: column;
	gap: 1.5rem;
}

/* ── Drop Zone ── */

.lumination-drop-zone {
	border: 2px dashed currentColor;
	border-opacity: 0.3;
	border-radius: 8px;
	padding: 2.5rem 1.5rem;
	text-align: center;
	cursor: pointer;
	transition: all 0.25s ease;
	background: rgba(0, 0, 0, 0.02);
	position: relative;
}

.lumination-drop-zone:hover {
	border-opacity: 0.5;
	background: rgba(0, 0, 0, 0.04);
}

.lumination-drop-zone.drag-over {
	border-opacity: 0.8;
	border-style: solid;
	background: rgba(0, 0, 0, 0.06);
	transform: scale(1.01);
}

.lumination-drop-zone.has-file {
	border-color: #2d7a2d;
	border-style: solid;
	background: rgba(45, 122, 45, 0.05);
}

.drop-zone-icon {
	font-size: 2.5rem;
	margin-bottom: 0.75rem;
	display: block;
	line-height: 1;
	pointer-events: none;
	opacity: 0.6;
}

.drop-zone-label {
	font-weight: 600;
	margin: 0 0 0.5rem;
	pointer-events: none;
}

.drop-zone-hint {
	font-size: 0.9em;
	margin: 0.25rem 0;
	pointer-events: none;
	opacity: 0.7;
}

.drop-zone-filename {
	font-size: 0.9em;
	color: #2d7a2d;
	font-weight: 600;
	margin: 1rem 0 0;
	font-family: monospace;
	pointer-events: none;
}

.lumination-drop-zone input[type="file"] {
	position: absolute;
	inset: 0;
	width: 100%;
	height: 100%;
	opacity: 0;
	cursor: pointer;
}

/* ── Text Input ── */

.lumination-text-input-container {
	display: flex;
	flex-direction: column;
	gap: 0.5rem;
}

.lumination-label {
	font-weight: 600;
}

.lumination-textarea {
	width: 100%;
	border: 1px solid currentColor;
	border-opacity: 0.3;
	border-radius: 4px;
	padding: 0.75rem;
	font-family: inherit;
	font-size: inherit;
	line-height: 1.5;
	resize: vertical;
	min-height: 120px;
	transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.lumination-textarea:focus {
	outline: none;
	border-opacity: 0.6;
	box-shadow: 0 0 0 2px rgba(0, 0, 0, 0.05);
}

/* ── Submit Button ── */

.lumination-submit-container {
	display: flex;
	justify-content: center;
	margin-top: 0.5rem;
}

.lumination-btn-primary {
	/* Use WordPress theme button styles as base */
	border: 1px solid;
	border-radius: 4px;
	padding: 0.75rem 1.5rem;
	font-weight: 600;
	cursor: pointer;
	font-size: 1em;
	font-family: inherit;
	line-height: 1.5;
	transition: all 0.2s ease;
	min-width: 180px;

	/* Default colors (can be overridden by custom properties) */
	background-color: var(--lumination-btn-bg, #2271b1);
	color: var(--lumination-btn-text, #fff);
	border-color: var(--lumination-btn-border, #2271b1);
}

.lumination-btn-primary:hover:not(:disabled) {
	background-color: var(--lumination-btn-bg-hover, #135e96);
	border-color: var(--lumination-btn-border-hover, #135e96);
	transform: translateY(-1px);
	box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.lumination-btn-primary:disabled {
	opacity: 0.5;
	cursor: not-allowed;
	transform: none;
}

.lumination-btn-primary:active:not(:disabled) {
	transform: translateY(0);
	box-shadow: none;
}

/* ── Solution Display ── */

.lumination-solution {
	margin-top: 2rem;
	padding-top: 2rem;
	border-top: 1px solid currentColor;
	border-opacity: 0.15;
	animation: lum-fadeInUp 0.4s ease;
}

.lumination-solution h3 {
	margin-top: 0;
	margin-bottom: 1rem;
}

.lumination-content {
	padding: 1.5rem;
	border: 1px solid currentColor;
	border-opacity: 0.15;
	border-radius: 4px;
	background: rgba(0, 0, 0, 0.02);
	line-height: 1.7;
}

/* ── Content Rendering (Markdown + Math) ── */

/**
 * IMPORTANT: Based on Azvai Experiments learnings:
 * - NO overflow rules (prevents formula clipping)
 * - Fixed heading sizes (not responsive clamp)
 * - Let content flow naturally
 */

.lumination-content > *:first-child {
	margin-top: 0;
}

.lumination-content > *:last-child {
	margin-bottom: 0;
}

.lumination-content p {
	margin: 0 0 1em;
}

.lumination-content h1 {
	font-size: 1.5em;
	margin: 1.5em 0 0.5em;
	font-weight: 700;
	line-height: 1.25;
}

.lumination-content h2 {
	font-size: 1.3em;
	margin: 1.25em 0 0.5em;
	font-weight: 700;
	line-height: 1.25;
}

.lumination-content h3 {
	font-size: 1.1em;
	margin: 1em 0 0.5em;
	font-weight: 600;
	line-height: 1.25;
}

.lumination-content ul,
.lumination-content ol {
	margin: 0 0 1em;
	padding-left: 2em;
}

.lumination-content li {
	margin: 0.25em 0;
}

.lumination-content pre {
	margin: 1em 0;
	padding: 1em;
	border-radius: 4px;
	background: rgba(0, 0, 0, 0.05);
	overflow-x: auto;
	font-family: monospace;
}

.lumination-content code {
	font-family: monospace;
	font-size: 0.9em;
	background: rgba(0, 0, 0, 0.05);
	padding: 0.15em 0.3em;
	border-radius: 3px;
}

.lumination-content pre code {
	background: none;
	padding: 0;
}

.lumination-content table {
	border-collapse: collapse;
	width: 100%;
	margin: 1em 0;
}

.lumination-content th,
.lumination-content td {
	border: 1px solid currentColor;
	border-opacity: 0.2;
	padding: 0.5em 0.75em;
	text-align: left;
}

.lumination-content th {
	background: rgba(0, 0, 0, 0.05);
	font-weight: 600;
}

/* Math formulas - MathJax handles rendering, we just ensure proper sizing */
.lumination-content .MathJax {
	font-size: 1em !important;
}

/* ── Loading State ── */

.lumination-loading {
	text-align: center;
	padding: 2rem;
	opacity: 0.7;
}

/* ── Error/Notice States ── */

.lumination-notice {
	padding: 1rem;
	border-radius: 4px;
	margin: 1rem 0;
	line-height: 1.5;
}

.lumination-notice-error {
	background: rgba(255, 0, 0, 0.1);
	color: #c00;
	border: 1px solid rgba(255, 0, 0, 0.3);
}

.lumination-notice-success {
	background: rgba(0, 128, 0, 0.1);
	color: #2d7a2d;
	border: 1px solid rgba(0, 128, 0, 0.3);
}

.lumination-error {
	color: #c00;
	padding: 1rem;
	text-align: center;
}

/* ── Responsive ── */

@media (max-width: 768px) {
	.lumination-homework-helper {
		margin: 1rem;
	}

	.lumination-container {
		padding: 1rem;
	}

	.lumination-drop-zone {
		padding: 2rem 1rem;
	}

	.drop-zone-icon {
		font-size: 2rem;
	}

	.lumination-btn-primary {
		width: 100%;
	}

	.lumination-content {
		padding: 1rem;
	}
}

/* ── Accessibility ── */

.lumination-homework-helper *:focus-visible {
	outline: 2px solid currentColor;
	outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
	.lumination-homework-helper,
	.lumination-solution,
	.lumination-drop-zone {
		animation: none;
		transition: none;
	}
}