/* ===================================================================
   Wistia Video Downloader — Stylesheet
   Primary: #0090e1   Complementary accent: #00c896
   =================================================================== */

/* ------------------------------------------------------------------ */
/* Custom Properties                                                  */
/* ------------------------------------------------------------------ */
:root {
	--color-primary: #0090e1;
	--color-primary-dark: #0077bd;
	--color-primary-light: #e6f4fd;
	--color-primary-subtle: #f0f8ff;
	--color-accent: #00c896;
	--color-accent-dark: #00a87d;

	--color-bg: #ffffff;
	--color-surface: #f7f9fc;
	--color-surface-alt: #eef2f7;
	--color-border: #dde3ec;
	--color-border-light: #eaeff5;

	--color-text: #1a2332;
	--color-text-secondary: #4a5568;
	--color-text-muted: #8492a6;
	--color-text-inverse: #ffffff;

	--color-danger: #dc3545;
	--color-danger-bg: #fff5f5;
	--color-warning: #f0ad4e;

	--radius-sm: 6px;
	--radius-md: 10px;
	--radius-lg: 16px;
	--radius-xl: 24px;

	--shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.06);
	--shadow-md: 0 4px 16px rgba(0, 0, 0, 0.08);
	--shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.10);
	--shadow-primary: 0 4px 16px rgba(0, 144, 225, 0.25);

	--font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
	--font-mono: 'SF Mono', 'Fira Code', 'Consolas', 'Monaco', monospace;

	--header-height: 64px;
	--max-width: 1080px;
	--content-width: 680px;
}

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

html {
	scroll-behavior: smooth;
}

body {
	font-family: var(--font-family);
	background: var(--color-bg);
	color: var(--color-text);
	line-height: 1.6;
	min-height: 100vh;
	display: flex;
	flex-direction: column;
	-webkit-font-smoothing: antialiased;
	-moz-osx-font-smoothing: grayscale;
}

main {
	flex: 1 0 auto;
}

a {
	color: var(--color-primary);
	text-decoration: none;
	transition: color 0.2s;
}

a:hover {
	color: var(--color-primary-dark);
}

img {
	max-width: 100%;
	display: block;
}

code {
	font-family: var(--font-mono);
	font-size: 0.88em;
	background: var(--color-surface-alt);
	border: 1px solid var(--color-border-light);
	border-radius: 4px;
	padding: 1px 6px;
}

/* ------------------------------------------------------------------ */
/* Utility                                                            */
/* ------------------------------------------------------------------ */
.container {
	max-width: var(--max-width);
	margin: 0 auto;
	padding: 0 24px;
}

.container--narrow {
	max-width: var(--content-width);
}

/* ------------------------------------------------------------------ */
/* Buttons                                                            */
/* ------------------------------------------------------------------ */
.btn {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 10px 22px;
	border: none;
	border-radius: var(--radius-sm);
	font-family: var(--font-family);
	font-size: 0.9rem;
	font-weight: 600;
	cursor: pointer;
	transition: background 0.2s, box-shadow 0.2s, transform 0.1s;
	text-decoration: none;
	line-height: 1.4;
}

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

.btn:active {
	transform: translateY(1px);
}

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

.btn-primary {
	background: var(--color-primary);
	color: var(--color-text-inverse);
}

.btn-primary:hover:not(:disabled) {
	background: var(--color-primary-dark);
	box-shadow: var(--shadow-primary);
	color: var(--color-text-inverse);
}

.btn-accent {
	background: var(--color-accent);
	color: var(--color-text-inverse);
}

.btn-accent:hover:not(:disabled) {
	background: var(--color-accent-dark);
}

.btn-outline {
	background: transparent;
	color: var(--color-primary);
	border: 1.5px solid var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
	background: var(--color-primary);
	color: var(--color-text-inverse);
}

.btn-small {
	padding: 6px 14px;
	font-size: 0.82rem;
}

.btn-large {
	padding: 14px 32px;
	font-size: 1rem;
	border-radius: var(--radius-md);
}

/* ------------------------------------------------------------------ */
/* Site Header                                                        */
/* ------------------------------------------------------------------ */
.site-header {
	background: var(--color-bg);
	border-bottom: 1px solid var(--color-border-light);
	position: sticky;
	top: 0;
	z-index: 100;
	height: var(--header-height);
}

.site-header .container {
	display: flex;
	align-items: center;
	justify-content: space-between;
	height: 100%;
}

.header-brand {
	display: flex;
	align-items: center;
	gap: 12px;
	text-decoration: none;
	color: var(--color-text);
}

.header-brand:hover {
	color: var(--color-text);
	text-decoration: none;
}

.header-brand img {
	height: 36px;
	width: 36px;
	object-fit: contain;
}

.header-brand span {
	font-size: 1.1rem;
	font-weight: 700;
	letter-spacing: -0.01em;
}

.header-cta .btn {
	font-size: 0.85rem;
	padding: 8px 18px;
}

.header-cta .btn svg {
	width: 16px;
	height: 16px;
	fill: currentColor;
}

/* ------------------------------------------------------------------ */
/* Hero                                                               */
/* ------------------------------------------------------------------ */
.hero {
	background: linear-gradient(175deg, var(--color-primary-subtle) 0%, var(--color-bg) 60%);
	padding: 48px 0 40px;
	text-align: center;
}

.hero h1 {
	font-size: 2.2rem;
	font-weight: 800;
	letter-spacing: -0.025em;
	line-height: 1.25;
	margin-bottom: 8px;
	color: var(--color-text);
}

.hero h1 span {
	color: var(--color-primary);
}

.hero .hero-subtitle {
	font-size: 1rem;
	color: var(--color-text-secondary);
	margin: 0 auto 28px;
}

/* ------------------------------------------------------------------ */
/* Downloader Card                                                    */
/* ------------------------------------------------------------------ */
.downloader-card {
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	box-shadow: var(--shadow-md);
	padding: 18px 24px;
	max-width: 820px;
	margin: 0 auto;
}

.input-group {
	display: flex;
	gap: 10px;
	align-items: center;
}

.input-group textarea {
	flex: 1;
	background: var(--color-surface);
	border: 1.5px solid var(--color-border);
	border-radius: var(--radius-sm);
	color: var(--color-text);
	padding: 12px 16px;
	font-family: var(--font-family);
	font-size: 0.92rem;
	resize: none;
	height: 48px;
	transition: border-color 0.2s, box-shadow 0.2s;
}

.input-group textarea::placeholder {
	color: var(--color-text-muted);
}

.input-group textarea:focus {
	outline: none;
	border-color: var(--color-primary);
	box-shadow: 0 0 0 3px rgba(0, 144, 225, 0.12);
}

.input-group .btn {
	flex-shrink: 0;
	min-height: 48px;
}

/* ------------------------------------------------------------------ */
/* Results Area                                                       */
/* ------------------------------------------------------------------ */
.results-area {
	max-width: 820px;
	margin: 28px auto 0;
}

.results-area:empty {
	margin: 0;
}

/* Loading */
.loading {
	text-align: center;
	padding: 48px 0;
}

.spinner {
	width: 36px;
	height: 36px;
	border: 3px solid var(--color-border);
	border-top-color: var(--color-primary);
	border-radius: 50%;
	animation: spin 0.75s linear infinite;
	margin: 0 auto 14px;
}

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

.loading p {
	color: var(--color-text-muted);
	font-size: 0.92rem;
}

/* Error */
.error-box {
	background: var(--color-danger-bg);
	border: 1px solid rgba(220, 53, 69, 0.25);
	border-radius: var(--radius-md);
	padding: 16px 20px;
	color: var(--color-danger);
	font-size: 0.9rem;
}

/* ------------------------------------------------------------------ */
/* Video Card                                                         */
/* ------------------------------------------------------------------ */
.video-card {
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-lg);
	overflow: hidden;
	box-shadow: var(--shadow-md);
}

.video-card .thumb-wrap {
	position: relative;
	width: 100%;
	background: var(--color-surface-alt);
}

.video-card .thumb-wrap img {
	width: 100%;
	display: block;
	aspect-ratio: 16 / 9;
	object-fit: cover;
}

.video-card .thumb-duration {
	position: absolute;
	bottom: 10px;
	right: 10px;
	background: rgba(0, 0, 0, 0.72);
	color: #fff;
	font-size: 0.78rem;
	font-weight: 600;
	padding: 3px 10px;
	border-radius: 4px;
	letter-spacing: 0.02em;
}

.video-card .card-body {
	padding: 24px;
}

.video-card .video-name {
	font-size: 1.15rem;
	font-weight: 700;
	margin-bottom: 4px;
	word-break: break-word;
	color: var(--color-text);
}

.video-card .video-id-label {
	font-size: 0.8rem;
	color: var(--color-text-muted);
	margin-bottom: 20px;
}

.video-card .video-id-label span {
	font-family: var(--font-mono);
	color: var(--color-text-secondary);
}

/* Controls row */
.controls-row {
	display: flex;
	align-items: center;
	gap: 10px;
	flex-wrap: wrap;
}

.controls-row select {
	flex: 1;
	min-width: 160px;
	background: var(--color-surface);
	border: 1.5px solid var(--color-border);
	border-radius: var(--radius-sm);
	color: var(--color-text);
	padding: 10px 14px;
	font-family: var(--font-family);
	font-size: 0.88rem;
	cursor: pointer;
	transition: border-color 0.2s;
}

.controls-row select:focus {
	outline: none;
	border-color: var(--color-primary);
}

/* Captions */
.captions-section {
	margin-top: 20px;
	padding-top: 20px;
	border-top: 1px solid var(--color-border-light);
}

.captions-section .captions-label {
	font-size: 0.82rem;
	font-weight: 600;
	color: var(--color-text-muted);
	text-transform: uppercase;
	letter-spacing: 0.04em;
	margin-bottom: 10px;
}

.captions-row {
	display: flex;
	align-items: center;
	gap: 10px;
	flex-wrap: wrap;
}

.captions-row select {
	flex: 1;
	min-width: 120px;
	background: var(--color-surface);
	border: 1.5px solid var(--color-border);
	border-radius: var(--radius-sm);
	color: var(--color-text);
	padding: 8px 12px;
	font-family: var(--font-family);
	font-size: 0.85rem;
}

.captions-row .single-lang {
	flex: 0 1 auto;
	font-size: 0.88rem;
	color: var(--color-text-secondary);
	padding: 0;
	margin-right: 4px;
}

/* Password */
.password-section {
	padding: 20px;
	background: #fffcf5;
	border: 1px solid rgba(240, 173, 78, 0.3);
	border-radius: var(--radius-md);
}

.password-section .pw-label {
	font-size: 0.95rem;
	font-weight: 600;
	color: #946300;
	margin-bottom: 12px;
}

.password-row {
	display: flex;
	gap: 8px;
}

.password-row input {
	flex: 1;
	background: var(--color-bg);
	border: 1.5px solid var(--color-border);
	border-radius: var(--radius-sm);
	color: var(--color-text);
	padding: 10px 14px;
	font-family: var(--font-family);
	font-size: 0.9rem;
	transition: border-color 0.2s;
}

.password-row input:focus {
	outline: none;
	border-color: var(--color-primary);
}

.password-row input.pw-error {
	border-color: var(--color-danger);
}

/* ------------------------------------------------------------------ */
/* Extension Section                                                  */
/* ------------------------------------------------------------------ */
.ext-section {
	padding: 64px 0;
	background: var(--color-surface);
	border-top: 1px solid var(--color-border-light);
}

.ext-layout {
	display: flex;
	gap: 48px;
	align-items: flex-start;
}

.ext-copy {
	flex: 1;
	min-width: 0;
}

.ext-copy h2 {
	font-size: 1.5rem;
	font-weight: 800;
	letter-spacing: -0.02em;
	margin-bottom: 12px;
	color: var(--color-text);
}

.ext-intro {
	font-size: 0.95rem;
	color: var(--color-text-secondary);
	line-height: 1.6;
	margin-bottom: 20px;
}

.ext-reasons {
	list-style: none;
	padding: 0;
	margin: 0;
}

.ext-reasons li {
	position: relative;
	padding-left: 20px;
	margin-bottom: 16px;
	font-size: 0.92rem;
	line-height: 1.6;
	color: var(--color-text-secondary);
}

.ext-reasons li::before {
	content: '';
	position: absolute;
	left: 0;
	top: 9px;
	width: 6px;
	height: 6px;
	border-radius: 50%;
	background: var(--color-primary);
}

.ext-reasons li strong {
	color: var(--color-text);
	font-weight: 600;
}

.ext-badge {
	flex-shrink: 0;
	display: flex;
	align-items: center;
	padding-top: 24px;
}

.cws-banner {
	width: 248px;
	height: auto;
	transition: opacity 0.2s;
}

.cws-banner:hover {
	opacity: 0.85;
}

/* ------------------------------------------------------------------ */
/* Download Progress                                                  */
/* ------------------------------------------------------------------ */
.download-progress {
	margin-top: 20px;
	padding-top: 20px;
	border-top: 1px solid var(--color-border-light);
}

.download-progress .dp-header {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-bottom: 10px;
}

.download-progress .dp-label {
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--color-text);
}

.download-progress .dp-stats {
	font-size: 0.8rem;
	color: var(--color-text-muted);
	font-family: var(--font-mono);
}

.download-progress .dp-track {
	width: 100%;
	height: 10px;
	background: var(--color-surface-alt);
	border-radius: 5px;
	overflow: hidden;
	position: relative;
}

.download-progress .dp-fill {
	height: 100%;
	background: linear-gradient(90deg, var(--color-primary), var(--color-accent));
	border-radius: 5px;
	width: 0%;
	transition: width 0.3s ease;
}

.download-progress .dp-fill.dp-indeterminate {
	width: 30%;
	animation: dp-slide 1.2s ease-in-out infinite;
}

@keyframes dp-slide {
	0% { transform: translateX(-100%); }
	100% { transform: translateX(400%); }
}

.download-progress .dp-footer {
	display: flex;
	align-items: center;
	justify-content: space-between;
	margin-top: 8px;
}

.download-progress .dp-percent {
	font-size: 0.82rem;
	font-weight: 600;
	color: var(--color-primary);
}

.download-progress .dp-cancel {
	background: none;
	border: none;
	color: var(--color-text-muted);
	font-size: 0.8rem;
	font-family: var(--font-family);
	cursor: pointer;
	padding: 2px 8px;
	border-radius: 4px;
	transition: color 0.2s, background 0.2s;
}

.download-progress .dp-cancel:hover {
	color: var(--color-danger);
	background: var(--color-danger-bg);
}

.download-progress .dp-success {
	display: flex;
	align-items: center;
	gap: 6px;
	font-size: 0.85rem;
	font-weight: 600;
	color: var(--color-accent-dark);
	margin-top: 8px;
}

.download-progress .dp-error {
	font-size: 0.82rem;
	color: var(--color-text-muted);
	margin-top: 8px;
}

/* ------------------------------------------------------------------ */
/* Footer                                                             */
/* ------------------------------------------------------------------ */
.site-footer {
	background: var(--color-text);
	color: rgba(255, 255, 255, 0.7);
	padding: 28px 0 20px;
	margin-top: auto;
}

.footer-inner {
	display: flex;
	align-items: center;
	justify-content: center;
	flex-wrap: wrap;
	gap: 10px;
}

.footer-brand {
	display: flex;
	align-items: center;
	gap: 10px;
}

.footer-brand img {
	height: 28px;
	width: 28px;
	object-fit: contain;
	opacity: 0.85;
}

.footer-brand span {
	font-size: 0.92rem;
	font-weight: 600;
	color: rgba(255, 255, 255, 0.9);
}

.footer-copy {
	width: 100%;
	text-align: center;
	margin-top: 14px;
	padding-top: 14px;
	border-top: 1px solid rgba(255, 255, 255, 0.1);
	font-size: 0.8rem;
	color: rgba(255, 255, 255, 0.4);
}

/* ------------------------------------------------------------------ */
/* SEO Section                                                        */
/* ------------------------------------------------------------------ */
.seo-section {
	padding: 48px 0;
}

.seo-card {
	display: flex;
	gap: 20px;
	align-items: flex-start;
	background: var(--color-primary-subtle);
	border: 1px solid rgba(0, 144, 225, 0.12);
	border-radius: var(--radius-lg);
	padding: 28px 32px;
}

.seo-card__icon {
	flex-shrink: 0;
	width: 48px;
	height: 48px;
	background: var(--color-primary);
	color: var(--color-text-inverse);
	border-radius: var(--radius-md);
	display: flex;
	align-items: center;
	justify-content: center;
}

.seo-card__body h2 {
	font-size: 1.2rem;
	font-weight: 700;
	margin-bottom: 8px;
	color: var(--color-text);
}

.seo-card__body p {
	font-size: 0.92rem;
	line-height: 1.7;
	color: var(--color-text-secondary);
	margin-bottom: 14px;
}

.seo-card__link {
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--color-primary);
	transition: gap 0.2s, color 0.2s;
}

.seo-card__link:hover {
	gap: 10px;
	color: var(--color-primary-dark);
}

.seo-card__link svg {
	transition: transform 0.2s;
}

.seo-card__link:hover svg {
	transform: translateX(2px);
}

/* ------------------------------------------------------------------ */
/* FAQ Section                                                        */
/* ------------------------------------------------------------------ */
.faq-section {
	padding: 56px 0 64px;
	background: var(--color-surface);
	border-top: 1px solid var(--color-border-light);
}

.faq-section h2 {
	font-size: 1.5rem;
	font-weight: 800;
	letter-spacing: -0.02em;
	text-align: center;
	margin-bottom: 32px;
	color: var(--color-text);
}

.faq-list {
	display: flex;
	flex-direction: column;
	gap: 12px;
}

.faq-item {
	background: var(--color-bg);
	border: 1px solid var(--color-border);
	border-radius: var(--radius-md);
	overflow: hidden;
	transition: border-color 0.2s, box-shadow 0.2s;
}

.faq-item:hover {
	border-color: var(--color-primary);
}

.faq-item[open] {
	border-color: var(--color-primary);
	box-shadow: 0 2px 8px rgba(0, 144, 225, 0.08);
}

.faq-item summary {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 16px 20px;
	font-size: 0.95rem;
	font-weight: 600;
	color: var(--color-text);
	cursor: pointer;
	list-style: none;
	user-select: none;
	transition: background 0.15s;
}

.faq-item summary::-webkit-details-marker {
	display: none;
}

.faq-item summary::marker {
	display: none;
	content: '';
}

.faq-item summary:hover {
	background: var(--color-surface);
}

/* Chevron indicator */
.faq-item summary::after {
	content: '';
	flex-shrink: 0;
	width: 20px;
	height: 20px;
	margin-left: 16px;
	background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='20' height='20' viewBox='0 0 24 24' fill='none' stroke='%234a5568' stroke-width='2.5' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
	background-repeat: no-repeat;
	background-position: center;
	background-size: 20px;
	transition: transform 0.25s ease;
}

.faq-item[open] summary::after {
	transform: rotate(180deg);
}

.faq-answer {
	padding: 0 20px 18px;
}

.faq-answer p {
	font-size: 0.92rem;
	line-height: 1.7;
	color: var(--color-text-secondary);
	margin: 0;
}

/* ------------------------------------------------------------------ */
/* Responsive                                                         */
/* ------------------------------------------------------------------ */
@media (max-width: 768px) {
	.hero h1 {
		font-size: 1.7rem;
	}

	.hero .hero-subtitle {
		font-size: 0.95rem;
	}

	.downloader-card {
		padding: 16px 18px;
	}

	.ext-layout {
		flex-direction: column;
		gap: 28px;
	}

	.ext-badge {
		padding-top: 0;
		justify-content: center;
		margin-top: 8px;
	}

	.seo-card {
		padding: 22px 24px;
	}

	.faq-section {
		padding: 40px 0 48px;
	}
}

@media (max-width: 600px) {
	.header-brand span {
		display: none;
	}
}

@media (max-width: 480px) {
	.container {
		padding: 0 16px;
	}

	.hero {
		padding: 32px 0 28px;
	}

	.hero h1 {
		font-size: 1.5rem;
	}

	.hero .hero-subtitle {
		font-size: 0.9rem;
		margin-bottom: 20px;
	}

	.downloader-card {
		padding: 14px 16px;
	}

	.input-group {
		flex-direction: column;
		align-items: stretch;
		gap: 12px;
	}

	.input-group textarea {
		height: auto;
		min-height: 48px;
	}

	.video-card .card-body {
		padding: 16px;
	}

	.controls-row {
		flex-direction: column;
		align-items: stretch;
	}

	.captions-row {
		flex-direction: column;
		align-items: stretch;
	}

	.password-row {
		flex-direction: column;
		align-items: stretch;
		gap: 12px;
	}

	.ext-section {
		padding: 40px 0;
	}

	.ext-copy h2 {
		font-size: 1.3rem;
	}

	.ext-reasons li {
		font-size: 0.88rem;
	}

	.cws-banner {
		width: 200px;
	}

	.footer-inner {
		flex-direction: column;
		text-align: center;
		gap: 16px;
	}

	.seo-card {
		flex-direction: column;
		gap: 14px;
		padding: 20px;
	}

	.seo-card__icon {
		width: 40px;
		height: 40px;
	}

	.seo-card__icon svg {
		width: 22px;
		height: 22px;
	}

	.faq-item summary {
		padding: 14px 16px;
		font-size: 0.9rem;
	}

	.faq-answer {
		padding: 0 16px 16px;
	}

	.site-header {
		height: 56px;
	}

	.header-brand img {
		height: 32px;
		width: 32px;
	}
	
	.header-cta .btn {
		font-size: 0.8rem;
		padding: 6px 12px;
	}
	
	.faq-section h2 {
		font-size: 1.3rem;
		margin-bottom: 24px;
	}
}