/**
 * Lumination Summarizer — Front-end Styles
 *
 * CSS prefix: lms-  (Lumination Summarizer)
 * Inspired by smmry.com — clean, modern, lavender-accented aesthetic.
 *
 * @package LuminationSummarizer
 * @since   1.0.0
 */

/* ── Variables & wrapper ─────────────────────────────────────────────────── */

.lms-summarizer {
	--lms-primary: #6C5CE7;
	--lms-primary-hover: #5a4bd5;
	--lms-primary-light: rgba(108, 92, 231, 0.08);
	--lms-primary-glow: rgba(108, 92, 231, 0.15);
	--lms-btn-text: #fff;
	--lms-bg: #ffffff;
	--lms-text: #1a1a2e;
	--lms-radius: 16px;
	--lms-border: #e8e5f0;
	--lms-muted: #8b85a1;
	--lms-light-bg: #f5f3ff;
	--lms-surface: #faf9fe;

	font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
		Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
	background: linear-gradient(135deg, var(--lms-surface) 0%, var(--lms-bg) 100%);
	color: var(--lms-text);
	border: 1px solid var(--lms-border);
	border-radius: var(--lms-radius);
	padding: 2rem;
	max-width: 720px;
	margin: 2rem auto;
	box-sizing: border-box;
	box-shadow: 0 4px 24px rgba(108, 92, 231, 0.06), 0 1px 4px rgba(0, 0, 0, 0.04);
}

.lms-summarizer *,
.lms-summarizer *::before,
.lms-summarizer *::after {
	box-sizing: border-box;
}

/* ── Utility ─────────────────────────────────────────────────────────────── */

.lms-hidden {
	display: none !important;
}

/* ── Header ──────────────────────────────────────────────────────────────── */

.lms-header {
	margin-bottom: 1.5rem;
	text-align: center;
}

.lms-title {
	font-size: 1.5rem;
	font-weight: 700;
	margin: 0 0 0.375rem;
	color: var(--lms-text);
	letter-spacing: -0.01em;
}

.lms-description {
	font-size: 0.95rem;
	color: var(--lms-muted);
	margin: 0;
	line-height: 1.5;
}

/* ── Tabs (input mode) ──────────────────────────────────────────────────── */

.lms-tabs {
	display: flex;
	gap: 0;
	margin-bottom: 1.25rem;
	background: var(--lms-light-bg);
	border-radius: 10px;
	padding: 4px;
}

.lms-tab {
	flex: 1;
	padding: 0.6rem 1rem;
	border: none;
	border-radius: 8px;
	background: transparent;
	color: var(--lms-muted);
	font-size: 0.875rem;
	font-weight: 500;
	cursor: pointer;
	transition: all 0.2s ease;
	line-height: 1;
	text-align: center;
}

.lms-tab:hover {
	color: var(--lms-text);
}

.lms-tab--active {
	background: var(--lms-bg);
	color: var(--lms-primary);
	font-weight: 600;
	box-shadow: 0 1px 4px rgba(108, 92, 231, 0.12), 0 1px 2px rgba(0, 0, 0, 0.04);
}

.lms-tab--active:hover {
	color: var(--lms-primary);
}

/* ── Input panels ────────────────────────────────────────────────────────── */

.lms-url-input {
	width: 100%;
	padding: 0.875rem 1rem;
	border: 1.5px solid var(--lms-border);
	border-radius: 10px;
	font-size: 0.95rem;
	color: var(--lms-text);
	background: var(--lms-bg);
	transition: all 0.2s ease;
}

.lms-url-input:focus {
	outline: none;
	border-color: var(--lms-primary);
	box-shadow: 0 0 0 4px var(--lms-primary-glow);
}

.lms-url-input::placeholder {
	color: var(--lms-muted);
	opacity: 0.7;
}

.lms-text-input {
	width: 100%;
	padding: 0.875rem 1rem;
	border: 1.5px solid var(--lms-border);
	border-radius: 10px;
	font-size: 0.95rem;
	color: var(--lms-text);
	background: var(--lms-bg);
	resize: vertical;
	min-height: 120px;
	font-family: inherit;
	transition: all 0.2s ease;
}

.lms-text-input:focus {
	outline: none;
	border-color: var(--lms-primary);
	box-shadow: 0 0 0 4px var(--lms-primary-glow);
}

.lms-text-input::placeholder {
	color: var(--lms-muted);
	opacity: 0.7;
}

/* ── Drop zone ───────────────────────────────────────────────────────────── */

.lms-drop-zone {
	display: flex;
	flex-direction: column;
	align-items: center;
	justify-content: center;
	gap: 0.625rem;
	padding: 2.5rem 1.5rem;
	border: 2px dashed var(--lms-border);
	border-radius: 12px;
	background: var(--lms-surface);
	cursor: pointer;
	transition: all 0.2s ease;
	text-align: center;
}

.lms-drop-zone:hover,
.lms-drop-zone:focus-visible {
	border-color: var(--lms-primary);
	background: var(--lms-primary-light);
}

.lms-drop-zone.lms-dragover {
	border-color: var(--lms-primary);
	background: var(--lms-primary-light);
	transform: scale(1.01);
}

.lms-drop-icon {
	color: var(--lms-primary);
	opacity: 0.5;
}

.lms-drop-text {
	font-size: 0.9rem;
	color: var(--lms-muted);
	margin: 0;
}

.lms-file-name {
	font-size: 0.85rem;
	color: var(--lms-primary);
	margin: 0.5rem 0 0;
	font-weight: 600;
}

/* ── Options row ─────────────────────────────────────────────────────────── */

.lms-options {
	display: flex;
	align-items: center;
	gap: 1rem;
	margin-top: 1.25rem;
	flex-wrap: wrap;
}

.lms-option-group {
	display: flex;
	align-items: center;
	gap: 0.5rem;
}

.lms-option-label {
	font-size: 0.75rem;
	font-weight: 600;
	color: var(--lms-muted);
	text-transform: uppercase;
	letter-spacing: 0.05em;
	white-space: nowrap;
}

.lms-pill-group {
	display: flex;
	gap: 0;
	background: var(--lms-light-bg);
	border-radius: 8px;
	padding: 3px;
	border: 1px solid var(--lms-border);
}

.lms-pill {
	padding: 0.375rem 0.75rem;
	border: none;
	border-radius: 6px;
	background: transparent;
	color: var(--lms-muted);
	font-size: 0.8rem;
	font-weight: 500;
	cursor: pointer;
	transition: all 0.2s ease;
	line-height: 1.2;
	white-space: nowrap;
}

.lms-pill:hover {
	color: var(--lms-text);
}

.lms-pill--active {
	background: var(--lms-bg);
	color: var(--lms-primary);
	font-weight: 600;
	box-shadow: 0 1px 3px rgba(108, 92, 231, 0.12), 0 1px 2px rgba(0, 0, 0, 0.04);
}

/* ── Submit button ───────────────────────────────────────────────────────── */

.lms-submit-section {
	margin-top: 1.25rem;
}

.lms-submit-btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	width: 100%;
	padding: 0.875rem 1.5rem;
	background: linear-gradient(135deg, var(--lms-primary) 0%, var(--lms-primary-hover) 100%);
	color: var(--lms-btn-text);
	border: none;
	border-radius: 10px;
	font-size: 1rem;
	font-weight: 600;
	cursor: pointer;
	transition: all 0.2s ease;
	box-shadow: 0 2px 8px rgba(108, 92, 231, 0.25);
	letter-spacing: 0.01em;
}

.lms-submit-btn:hover:not(:disabled) {
	background: linear-gradient(135deg, var(--lms-primary-hover) 0%, #4a3ab5 100%);
	box-shadow: 0 4px 16px rgba(108, 92, 231, 0.35);
	transform: translateY(-1px);
}

.lms-submit-btn:active:not(:disabled) {
	transform: translateY(0);
	box-shadow: 0 2px 8px rgba(108, 92, 231, 0.25);
}

.lms-submit-btn:disabled {
	opacity: 0.45;
	cursor: not-allowed;
	box-shadow: none;
}

/* ── Loading ─────────────────────────────────────────────────────────────── */

.lms-loading {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 1rem;
	padding: 2.5rem 0;
}

.lms-spinner {
	width: 36px;
	height: 36px;
	border: 3px solid var(--lms-light-bg);
	border-top-color: var(--lms-primary);
	border-radius: 50%;
	animation: lms-spin 0.7s linear infinite;
}

@keyframes lms-spin {
	to { transform: rotate(360deg); }
}

.lms-loading-text {
	font-size: 0.9rem;
	color: var(--lms-muted);
	margin: 0;
	font-weight: 500;
}

/* ── Output ──────────────────────────────────────────────────────────────── */

.lms-output {
	margin-top: 1.75rem;
	padding-top: 1.5rem;
	border-top: 1.5px solid var(--lms-border);
}

.lms-output-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 1rem;
}

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

.lms-output-actions {
	display: flex;
	gap: 0.5rem;
	align-items: center;
}

.lms-copy-btn,
.lms-download-btn,
.lms-fullscreen-btn {
	display: inline-flex;
	align-items: center;
	gap: 0.375rem;
	padding: 0.4rem 0.75rem;
	border: 1.5px solid var(--lms-border);
	border-radius: 8px;
	background: var(--lms-bg);
	color: var(--lms-muted);
	font-size: 0.8rem;
	font-weight: 500;
	cursor: pointer;
	transition: all 0.2s ease;
	white-space: nowrap;
}

.lms-copy-btn:hover,
.lms-download-btn:hover,
.lms-fullscreen-btn:hover {
	border-color: var(--lms-primary);
	color: var(--lms-primary);
	background: var(--lms-primary-light);
}

.lms-copy-btn.lms-copied {
	border-color: #27ae60;
	color: #27ae60;
	background: rgba(39, 174, 96, 0.06);
}

.lms-fullscreen-btn.lms-fullscreen-active {
	border-color: var(--lms-primary);
	color: var(--lms-primary);
	background: var(--lms-primary-light);
}

/* ── Output content (rendered markdown) ──────────────────────────────────── */

.lms-output-content {
	font-size: 0.95rem;
	line-height: 1.75;
	color: var(--lms-text);
}

.lms-output-content h1,
.lms-output-content h2,
.lms-output-content h3,
.lms-output-content h4 {
	margin: 1.5rem 0 0.5rem;
	font-weight: 700;
	color: var(--lms-text);
	letter-spacing: -0.01em;
}

.lms-output-content h1 { font-size: 1.35rem; }
.lms-output-content h2 { font-size: 1.15rem; }
.lms-output-content h3 { font-size: 1.05rem; }
.lms-output-content h4 { font-size: 0.95rem; }

.lms-output-content p {
	margin: 0.625rem 0;
}

.lms-output-content ul,
.lms-output-content ol {
	margin: 0.625rem 0;
	padding-left: 1.5rem;
}

.lms-output-content li {
	margin: 0.3rem 0;
}

.lms-output-content blockquote {
	margin: 1rem 0;
	padding: 0.75rem 1.25rem;
	border-left: 3px solid var(--lms-primary);
	background: var(--lms-light-bg);
	border-radius: 0 8px 8px 0;
	color: var(--lms-muted);
	font-style: italic;
}

.lms-output-content code {
	background: var(--lms-light-bg);
	padding: 0.2rem 0.4rem;
	border-radius: 5px;
	font-size: 0.88em;
	color: var(--lms-primary);
}

.lms-output-content pre {
	background: var(--lms-light-bg);
	padding: 1.25rem;
	border-radius: 10px;
	overflow-x: auto;
	border: 1px solid var(--lms-border);
}

.lms-output-content pre code {
	background: none;
	padding: 0;
	color: var(--lms-text);
}

/* ── Mindmap ─────────────────────────────────────────────────────────────── */

.lms-mindmap-container {
	width: 100%;
	min-height: 400px;
	border: 1.5px solid var(--lms-border);
	border-radius: 12px;
	overflow: hidden;
	background: var(--lms-bg);
}

.lms-mindmap-container svg {
	width: 100%;
	height: 100%;
}

/* ── Mindmap fullscreen ──────────────────────────────────────────────────── */

.lms-mindmap-fullscreen {
	position: fixed;
	top: 0;
	left: 0;
	width: 100vw;
	height: 100vh;
	z-index: 999999;
	border-radius: 0;
	border: none;
	background: var(--lms-bg);
}

.lms-mindmap-fullscreen svg {
	width: 100%;
	height: 100vh;
}

.lms-fullscreen-close {
	position: fixed;
	top: 1rem;
	right: 1rem;
	z-index: 1000000;
	width: 40px;
	height: 40px;
	display: flex;
	align-items: center;
	justify-content: center;
	border: 1.5px solid var(--lms-border);
	border-radius: 10px;
	background: var(--lms-bg);
	color: var(--lms-muted);
	font-size: 1.5rem;
	line-height: 1;
	cursor: pointer;
	transition: all 0.2s ease;
	box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.lms-fullscreen-close:hover {
	border-color: var(--lms-primary);
	color: var(--lms-primary);
	background: var(--lms-primary-light);
}

/* ── Responsive ──────────────────────────────────────────────────────────── */

@media (max-width: 480px) {
	.lms-summarizer {
		padding: 1.25rem;
		margin: 1rem 0.5rem;
		border-radius: 12px;
	}

	.lms-title {
		font-size: 1.25rem;
	}

	.lms-tabs {
		flex-wrap: wrap;
	}

	.lms-tab {
		min-width: 0;
	}

	.lms-options {
		gap: 0.75rem;
	}

	.lms-option-group {
		flex-direction: column;
		align-items: flex-start;
		gap: 0.25rem;
	}
}