/* === CSS Custom Properties === */
:root {
	--sidebar-width: 330px;
	--sidebar-bg: #395a77;
	--sidebar-bg-dark: #2e4a64;
	--sidebar-text: #f0ece4;
	--sidebar-accent: #d4c9b8;
	--main-bg: #f5f2ed;
	--main-text: #2c2c2c;
	--btn-bg: #395a77;
	--btn-bg-hover: #2e4a64;
	--btn-text: #fff;
	--font-heading: Georgia, 'Times New Roman', serif;
	--font-body: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
	--pre-bg: #e8e4de;
	--input-bg: #fff;
	--input-border: #ccc;
	--table-stripe: #eae6df;
	--dropzone-color: #777;
	--dropzone-hover: #e8f0f8;
	--progress-bg: #ddd;
	--link-color: #395a77;
	--link-hover-color: #2e4a64;
}

/* === Dark mode === */
[data-theme="dark"] {
	--sidebar-bg: #1e2d3a;
	--sidebar-bg-dark: #162330;
	--sidebar-text: #d5d0c8;
	--sidebar-accent: #a89e8e;
	--main-bg: #1a1a1a;
	--main-text: #d5d0c8;
	--btn-bg: #2e4a64;
	--btn-bg-hover: #395a77;
	--btn-text: #e0dcd6;
	--pre-bg: #2a2a2a;
	--input-bg: #2a2a2a;
	--input-border: #444;
	--table-stripe: #252525;
	--dropzone-color: #888;
	--dropzone-hover: #252f38;
	--progress-bg: #333;
	--link-color: #5684A7;
	--link-hover-color: #a3cfe3;
}

/* === Reset / Base === */
*, *::before, *::after {
	box-sizing: border-box;
	margin: 0;
	padding: 0;
}

html, body {
	height: 100%;
	font-family: var(--font-body);
	font-size: 15px;
	line-height: 1.5;
	color: var(--main-text);
	background: var(--main-bg);
}

a {
	color: var(--link-color);
	text-decoration: none;
}
a:hover {
	color: var(--link-hover-color);
	text-decoration: underline;
}
.page-content a {
	font-weight: 600;
}

h1, h2, h3, h4 {
	font-family: var(--font-heading);
	margin-bottom: 0.5em;
}

h1 { font-size: 1.8rem; }
h2 { font-size: 1.4rem; }
h3 { font-size: 1.2rem; }

p { margin-bottom: 0.75em; }

ul, ol {
	margin-bottom: 0.75em;
	padding-left: 1.5em;
}

pre {
	background: var(--pre-bg);
	padding: 0.5em 0.75em;
	border-radius: 4px;
	overflow-x: auto;
	margin-bottom: 0.75em;
	font-size: 0.9em;
}

/* === Layout === */
.sidebar {
	position: fixed;
	top: 0;
	left: 0;
	width: var(--sidebar-width);
	height: 100vh;
	height: 100dvh;
	background: var(--sidebar-bg);
	color: var(--sidebar-text);
	overflow-y: hidden;
	z-index: 1000;
	display: flex;
	flex-direction: column;
	border-right: 2px solid var(--sidebar-bg-dark);
}

.main-content {
	margin-left: var(--sidebar-width);
	padding: 1.5rem 2rem;
	min-height: 100dvh;
}

/* === Sidebar: Brand === */
.sidebar-brand {
	padding: 0.75rem 1rem 0.5rem;
	border-bottom: 2px solid rgba(255,255,255,0.2);
	flex-shrink: 0;
}

.sidebar-brand h1 {
	font-family: var(--font-heading);
	font-size: 2rem;
	margin: 0;
	color: var(--sidebar-text);
	display: flex;
	align-items: baseline;
	justify-content: space-between;
}

.sidebar-brand h1 a {
	color: var(--sidebar-text);
	text-decoration: none;
}
.sidebar-brand h1 a:hover {
	color: var(--sidebar-accent);
	text-decoration: none;
}

.brand-about {
	font-family: var(--font-body);
	font-size: 1rem;
	color: var(--sidebar-accent);
	font-weight: normal;
}
.brand-about:hover {
	color: var(--sidebar-text);
	text-decoration: none;
}

.sidebar-brand .tagline {
	font-size: 1rem;
	color: var(--sidebar-accent);
	font-style: italic;
	margin-top: 0.15em;
}

/* === Sidebar: Controls (action rows) === */
.sidebar-controls {
	padding: 0.4rem 0.75rem;
	flex: 1;
	overflow-y: auto;
}

.sidebar-back a {
	color: var(--sidebar-accent);
	font-size: 1.1rem;
	font-weight: 600;
}
.sidebar-back a:hover {
	color: var(--sidebar-text);
	text-decoration: none;
}

/* Action row: button on left, options on right */
.action-row {
	display: flex;
	gap: 0.5rem;
	align-items: flex-start;
	padding: 0.5rem 0;
	border-bottom: 2px solid rgba(255,255,255,0.2);
}

.action-row:first-child {
	padding-top: 0.2rem;
}

.action-row .action-btn {
	flex-shrink: 0;
	width: 40%;
	font-size: 0.9375rem;
	padding: 0.3rem 0.35rem;
	white-space: nowrap;
}

.action-row .action-btn.active {
	background: var(--sidebar-text);
	color: var(--sidebar-bg-dark);
}

.action-row .action-options {
	flex: 1;
	min-width: 0;
}

.scheme-label {
	display: grid;
	grid-template-columns: 2rem 1fr;
	align-items: center;
	color: var(--sidebar-accent);
	font-size: 0.875rem;
	font-weight: normal;
	margin-bottom: 0.15rem;
	text-align: center;
}

.scheme-label-wide {
	grid-template-columns: 3.5rem 1fr;
}

.action-row .action-options select {
	width: 100%;
	padding: 0.22rem 0.3rem;
	border: 1px solid var(--sidebar-bg-dark);
	border-radius: 3px;
	background: var(--sidebar-bg-dark);
	color: var(--sidebar-text);
	font-size: 1rem;
	margin-bottom: 0.15rem;
}

.action-row .action-options select option {
	background: var(--sidebar-bg-dark);
	color: var(--sidebar-text);
}

.action-row .checkbox-group {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 0.05rem 0.5rem;
	margin-left: 0.4rem;
}

.action-row .checkbox-group label {
	display: inline-flex;
	align-items: center;
	gap: 0.2em;
	font-weight: normal;
	font-size: 0.9375rem;
	color: var(--sidebar-text);
}

.action-row .checkbox-group input[type="checkbox"] {
	accent-color: var(--sidebar-accent);
}

.action-row .btn-sm {
	font-size: 0.9rem;
	padding: 0.22rem 0.4rem;
}

/* Swap & upload-file rows */
.sidebar-extras {
	padding: 0.6rem 0;
	border-bottom: 2px solid rgba(255,255,255,0.2);
}

.swap-buttons {
	display: flex;
	gap: 0.3rem;
	margin-bottom: 0.25rem;
}

.swap-buttons:last-child {
	margin-bottom: 0;
}


.swap-buttons .btn {
	flex: 1;
	font-size: 0.875rem;
	padding: 0.22rem 0.15rem;
}
.scheme-options-row {
	display: flex;
	gap: 0.3rem;
}
.scheme-options-row .scheme-labels {
	flex: 1;
	min-width: 0;
}
.textarea-swap-group {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 0.2rem;
}
.textarea-swap-group .textarea-input,
.textarea-swap-group .textarea-output {
	margin-bottom: 0;
}
.textarea-swap-group .textarea-input {
	width: 100%;
}
.textarea-swap-group .textarea-output {
	width: 100%;
}
.btn.btn-swap-texts {
	align-self: flex-end;
	padding: 0.15rem 0.5rem;
	font-size: 0.85rem;
	line-height: 1;
	min-width: 0;
}
.btn.btn-swap-scheme {
	padding: 0.6rem 0.5rem;
	font-size: 0.85rem;
	line-height: 1;
	align-self: center;
	min-width: 0;
}


.sidebar-help-link {
	color: var(--sidebar-accent);
	font-size: 0.8rem;
	font-weight: normal;
	border: 1px solid rgba(255,255,255,0.25);
	border-radius: 50%;
	padding: 0 0.35em;
	margin-left: 0.25rem;
}
.sidebar-help-link:hover {
	color: var(--sidebar-text);
	border-color: rgba(255,255,255,0.4);
	text-decoration: none;
}

.swap-buttons-grid {
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 0.3rem;
}

.swap-buttons-grid .btn {
	font-size: 0.875rem;
	padding: 0.22rem 0.15rem;
}
.swap-buttons-grid .btn.active {
	background: var(--sidebar-text);
	color: var(--sidebar-bg-dark);
}

/* === Input mode toggle === */
.input-toggle-row {
	display: flex;
	align-items: center;
	gap: 0.3rem;
	margin-bottom: 0.4rem;
}
.input-toggle {
	display: flex;
	flex: 0 1 90%;
	border-radius: 20px;
	overflow: hidden;
	background: var(--sidebar-bg-dark);
	padding: 2px;
}
.toggle-btn {
	flex: 1;
	padding: 0.25rem 0.4rem;
	font-size: 0.8rem;
	font-weight: 500;
	text-align: center;
	cursor: pointer;
	border: none;
	border-radius: 18px;
	background: transparent;
	color: var(--sidebar-accent);
	transition: background 0.15s, color 0.15s;
}
.toggle-btn.active {
	background: var(--sidebar-text);
	color: var(--sidebar-bg-dark);
}
.input-toggle-row .sidebar-help-link {
	color: var(--sidebar-text);
	font-size: 0.8rem;
	text-align: center;
	text-decoration: none;
	padding: 0.2rem 0.5rem;
	background: var(--sidebar-bg-dark);
	border: 1px solid rgba(255,255,255,0.25);
	border-radius: 4px;
	flex-shrink: 0;
}

/* === Sidebar divider === */
.sidebar-divider {
	border: none;
	border-top: 1px solid rgba(255,255,255,0.15);
	margin: 0.5rem 0.5rem;
}

/* === Sidebar: Bottom links === */
.sidebar-bottom {
	font-size: 1rem;
	flex-shrink: 0;
	margin: 0 0.5rem 0.5rem;
	padding: 0;
	display: flex;
	gap: 0.4rem;
	flex-wrap: wrap;
}

.sidebar-bottom a {
	color: var(--sidebar-text);
	background: var(--btn-bg);
	border: 1px solid rgba(255,255,255,0.25);
	border-radius: 4px;
	padding: 0.3rem 0.6rem;
	font-size: 0.875rem;
	text-align: center;
	text-decoration: none;
	cursor: pointer;
	transition: background 0.15s;
}
.sidebar-bottom a:hover {
	background: var(--btn-bg-hover);
	border-color: rgba(255,255,255,0.4);
	color: var(--sidebar-text);
	text-decoration: none;
}

/* === Buttons === */
.btn {
	display: inline-block;
	padding: 0.45rem 1rem;
	font-size: 0.9rem;
	font-weight: 500;
	text-align: center;
	border: none;
	border-radius: 4px;
	cursor: pointer;
	transition: background 0.15s, opacity 0.15s;
	font-family: var(--font-body);
	text-decoration: none;
}

.btn:hover {
	text-decoration: none;
}

.btn-primary {
	background: var(--btn-bg);
	color: var(--btn-text);
	border: 1px solid rgba(255,255,255,0.25);
}

.btn-primary:hover {
	background: var(--btn-bg-hover);
	color: var(--btn-text);
	border-color: rgba(255,255,255,0.4);
}

.btn-primary:disabled {
	opacity: 0.6;
	cursor: not-allowed;
}

.btn-block {
	display: block;
	width: 100%;
}

/* === Form elements === */
textarea, input[type="text"], input[type="password"], input[type="search"], select {
	font-family: var(--font-body);
	font-size: 16px;
	border: 1px solid var(--input-border);
	border-radius: 4px;
	padding: 0.5rem;
	background: var(--input-bg);
	color: var(--main-text);
}

textarea:focus, input[type="text"]:focus, input[type="password"]:focus, select:focus {
	outline: 2px solid var(--btn-bg);
	outline-offset: -1px;
	border-color: var(--btn-bg);
}

/* Main textareas */
.textarea-input,
.textarea-output {
	width: 100%;
	padding: 0.75rem;
	border: 1px solid var(--input-border);
	border-radius: 4px;
	resize: vertical;
	margin-bottom: 1rem;
	white-space: pre;
	overflow-x: auto;
	overflow-y: auto;
	word-wrap: normal;
}

.textarea-input {
	min-height: 100px;
}

.textarea-output {
	min-height: 300px;
	font-family: 'Courier New', monospace;
	font-weight: bold;
	background: var(--input-bg);
}


/* === Melody player === */
.melody-player {
	display: none;
	align-items: center;
	gap: 1rem;
	padding: 0.25rem 0 0.75rem;
	flex-wrap: wrap;
}

.melody-player.visible {
	display: flex;
}

.melody-player audio {
	max-width: 300px;
}

.melody-player select {
	max-width: 300px;
}

/* === Page content (about, help, etc.) === */
.page-content {
	max-width: 800px;
}

.page-content h1 {
	margin-bottom: 0.75em;
}

.page-content h2 {
	margin-top: 1.5em;
}

/* === Tables === */
table {
	border-collapse: collapse;
	width: 100%;
	margin-bottom: 1rem;
}

table th, table td {
	padding: 0.5rem 0.75rem;
	border: 1px solid var(--input-border);
	text-align: left;
	font-size: 0.9rem;
}

table thead th {
	background: var(--btn-bg);
	color: var(--btn-text);
	font-weight: 600;
}

table tbody tr:nth-child(even) {
	background: var(--table-stripe);
}

/* === Dropzone (OCR) === */
.dropzone {
	border: 2px dashed var(--input-border);
	border-radius: 6px;
	padding: 40px;
	text-align: center;
	cursor: pointer;
	color: var(--dropzone-color);
}
.dropzone.dragover {
	background: var(--dropzone-hover);
}

/* === Progress bar === */
.progress {
	width: 100%;
	height: 24px;
	background: var(--progress-bg);
	border-radius: 4px;
	overflow: hidden;
	margin-bottom: 1rem;
}

.progress-bar {
	height: 100%;
	background: steelblue;
	color: white;
	text-align: center;
	font-size: 0.8rem;
	line-height: 24px;
	transition: width 0.3s;
}

.progress-bar-striped {
	background-image: linear-gradient(
		45deg,
		rgba(255,255,255,.15) 25%,
		transparent 25%,
		transparent 50%,
		rgba(255,255,255,.15) 50%,
		rgba(255,255,255,.15) 75%,
		transparent 75%,
		transparent
	);
	background-size: 1rem 1rem;
}

/* === Settings page === */
.settings-form label {
	font-weight: normal;
}

.settings-form select {
	max-width: 350px;
}


/* === External link icon === */
.ext-link-icon {
	width: 0.65em;
	height: 0.65em;
	margin-left: 0.15em;
	vertical-align: baseline;
	position: relative;
	top: -0.1em;
}

/* === Utility === */
.mt-2 { margin-top: 1rem; }

/* === Mobile header (burger) === */
.mobile-header {
	display: none;
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	height: 48px;
	background: var(--sidebar-bg);
	color: var(--sidebar-text);
	z-index: 999;
	align-items: center;
	padding: 0 1rem;
}

.mobile-header .brand {
	font-family: var(--font-heading);
	font-size: 1.2rem;
	color: var(--sidebar-text);
	text-decoration: none;
	margin-left: 0.75rem;
}

.burger {
	background: none;
	border: none;
	color: var(--sidebar-text);
	font-size: 1.5rem;
	cursor: pointer;
	padding: 0.25rem;
	line-height: 1;
}

/* === Overlay === */
.sidebar-overlay {
	display: none;
	position: fixed;
	top: 0;
	left: 0;
	right: 0;
	bottom: 0;
	background: rgba(0, 0, 0, 0.4);
	z-index: 998;
}

/* === Responsive: mobile === */
@media (max-width: 768px) {
	.sidebar {
		width: 88vw;
		max-width: 330px;
		transform: translateX(-100%);
		transition: transform 0.25s ease;
	}

	.sidebar.open {
		transform: translateX(0);
	}

	.sidebar-overlay.open {
		display: block;
	}

	.mobile-header {
		display: flex;
	}

	h1[id], h2[id], h3[id], h4[id], h5[id], h6[id] {
		scroll-margin-top: 60px;
	}

	.main-content {
		margin-left: 0;
		padding: 60px 1rem 3rem;
	}

	.melody-player {
		flex-direction: column;
		align-items: flex-start;
	}

	.melody-player audio {
		max-width: 100%;
		width: 100%;
	}

	.melody-player select {
		max-width: 100%;
		width: 100%;
	}

	/* GRETIL results table horizontal scroll */
	.table-scroll {
		overflow-x: auto;
		-webkit-overflow-scrolling: touch;
	}
}

/* wide tables scroll wrapper */
.table-scroll {
	overflow-x: auto;
}

/* === Form control (for selects in main content) === */
.form-control {
	width: 100%;
	padding: 0.4rem 0.5rem;
	border: 1px solid var(--input-border);
	border-radius: 4px;
	font-family: var(--font-body);
	font-size: 0.9rem;
	background: var(--input-bg);
	color: var(--main-text);
}

/* === Whole-file page === */
.upload-file-info .settings-group {
	margin: 0.75em 0 1.5em;
}
.upload-file-info .settings-row {
	display: flex;
	gap: 2em;
}
.upload-file-info .settings-cell {
	flex: 1;
	min-width: 0;
}
.upload-file-info .settings-header-row .settings-cell {
	font-size: 0.85em;
	color: #888;
	padding-bottom: 0.3em;
}
.upload-file-info .settings-header-row a {
	color: inherit;
	text-decoration: underline;
}
.upload-file-info .settings-summary {
	border-collapse: collapse;
	border: 1px solid #ddd;
	margin-bottom: 0.75em;
}
.upload-file-info .settings-summary caption {
	caption-side: top;
	text-align: left;
	padding: 0.4em 0.5em 0.2em;
	font-weight: 600;
	font-size: 0.85em;
	color: #666;
}
.upload-file-info .settings-summary td {
	padding: 0.3em 1.2em 0.3em 0.5em;
}
.upload-file-info .settings-summary td:first-child {
	width: 12em;
	color: #666;
}
[data-theme="dark"] .upload-file-info .settings-summary {
	border-color: #444;
}
[data-theme="dark"] .upload-file-info .settings-header-row .settings-cell {
	color: #999;
}
[data-theme="dark"] .upload-file-info .settings-summary caption,
[data-theme="dark"] .upload-file-info .settings-summary td:first-child {
	color: #999;
}
.upload-file-tip {
	font-size: 0.9em;
	color: #666;
	margin-top: 1.5em;
}
[data-theme="dark"] .upload-file-tip {
	color: #999;
}
.file-dropzone {
	display: block;
	border: 2px dashed var(--input-border);
	border-radius: 6px;
	padding: 2em;
	text-align: center;
	cursor: pointer;
	color: var(--dropzone-color);
	margin: 1.5em 0;
	transition: background 0.15s;
}
.file-dropzone:hover {
	background: var(--dropzone-hover);
}
.file-dropzone.dragover {
	background: var(--dropzone-hover);
	border-color: var(--btn-bg);
}
.file-dropzone-label {
	pointer-events: none;
}

/* === Video === */
video {
	max-width: 100%;
	margin-bottom: 1rem;
}

/* === Details/Summary === */
details {
	margin-bottom: 1rem;
}

summary {
	cursor: pointer;
	color: var(--btn-bg);
}

/* === OCR-specific overrides === */
.ocr-result-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.5rem;
	margin-top: 0.5rem;
}

.ocr-result-actions .btn {
	min-width: 160px;
}

.ocr-font-buttons {
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
}

.ocr-font-buttons .btn {
	padding: 0.3rem 0.6rem;
}