/* SHZ - Tu Dien Tieng Trung - frontend styles
   Prefix shztd-, scoped under app + fab containers.
   Palette slate-gray, accent red, override Flatsome where needed.
   Note: no square brackets in comments per WP shortcode safety. */

.shztd-app,
.shztd-fab-wrap {
	--shztd-accent: #c0392b;
	--shztd-dk: #2b2e35;
	--shztd-sl: #454850;
	--shztd-mu: #5a5e66;
	--shztd-mm: #878b93;
	--shztd-line: #e4e7eb;
	--shztd-bg: #ffffff;
	--shztd-soft: #f6f7f9;
	--shztd-radius: 14px;
	--shztd-shadow: 0 6px 24px rgba(43, 46, 53, .10);
	font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
	box-sizing: border-box;
}
.shztd-app *,
.shztd-fab-wrap * {
	box-sizing: border-box;
}

/* outline reset to avoid Flatsome dashed focus ring */
.shztd-app a,
.shztd-app button,
.shztd-app input,
.shztd-fab-wrap a,
.shztd-fab-wrap button,
.shztd-fab-wrap input {
	outline: none !important;
}
.shztd-app button:focus-visible,
.shztd-fab-wrap button:focus-visible,
.shztd-app input:focus-visible {
	box-shadow: 0 0 0 3px rgba(192, 57, 43, .18) !important;
}

/* ---------- app container ---------- */
.shztd-app[data-variant="page"] {
	max-width: 760px;
	margin: 0 auto;
}
.shztd-app .shztd-inner {
	background: var(--shztd-bg);
	border: 1px solid var(--shztd-line);
	border-radius: var(--shztd-radius);
	box-shadow: var(--shztd-shadow);
	padding: 18px;
}

/* ---------- search bar ---------- */
.shztd-searchbar {
	position: relative;
	display: flex;
	align-items: center;
}
.shztd-search-ic {
	position: absolute;
	left: 13px;
	color: var(--shztd-accent);
	display: flex;
	pointer-events: none;
}
.shztd-app .shztd-input,
.shztd-fab-wrap .shztd-input {
	width: 100% !important;
	margin: 0 !important;
	padding: 13px 42px 13px 42px !important;
	font-size: 16px !important;
	color: var(--shztd-dk) !important;
	background: var(--shztd-soft) !important;
	border: 2px solid var(--shztd-line) !important;
	border-radius: 999px !important;
	line-height: 1.4 !important;
	height: auto !important;
	transition: border-color .15s ease, background .15s ease;
}
.shztd-app .shztd-input:focus,
.shztd-fab-wrap .shztd-input:focus {
	border-color: var(--shztd-accent) !important;
	background: #fff !important;
}
.shztd-clear {
	position: absolute;
	right: 10px;
	display: none;
	align-items: center;
	justify-content: center;
	width: 26px;
	height: 26px;
	border: 0 !important;
	border-radius: 50% !important;
	background: #e4e7eb !important;
	color: var(--shztd-sl) !important;
	font-size: 18px !important;
	line-height: 1 !important;
	cursor: pointer;
	padding: 0 !important;
	min-width: 0 !important;
}
.shztd-clear:hover { background: #d6dae0 !important; }

/* ---------- tabs ---------- */
.shztd-tabs {
	display: flex;
	gap: 6px;
	margin: 14px 0 4px;
	border-bottom: 1px solid var(--shztd-line);
}
.shztd-app .shztd-tab,
.shztd-fab-wrap .shztd-tab {
	appearance: none;
	background: transparent !important;
	border: 0 !important;
	border-bottom: 3px solid transparent !important;
	color: var(--shztd-mu) !important;
	font-size: 15px !important;
	font-weight: 600 !important;
	padding: 8px 10px !important;
	margin: 0 !important;
	cursor: pointer;
	border-radius: 0 !important;
	box-shadow: none !important;
	text-transform: none !important;
	letter-spacing: 0 !important;
	line-height: 1.3 !important;
}
.shztd-tab.is-active {
	color: var(--shztd-accent) !important;
	border-bottom-color: var(--shztd-accent) !important;
}
.shztd-fav-count {
	display: inline-block;
	min-width: 18px;
	padding: 0 5px;
	margin-left: 2px;
	font-size: 12px;
	line-height: 18px;
	text-align: center;
	color: #fff;
	background: var(--shztd-mm);
	border-radius: 999px;
	vertical-align: middle;
}
.shztd-tab.is-active .shztd-fav-count { background: var(--shztd-accent); }

/* ---------- filters ---------- */
.shztd-filters {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 6px;
	margin: 12px 0 4px;
}
.shztd-filter-label {
	font-size: 13px;
	color: var(--shztd-mm);
	margin-right: 2px;
}
.shztd-app .shztd-chip,
.shztd-fab-wrap .shztd-chip {
	appearance: none;
	background: var(--shztd-soft) !important;
	border: 1px solid var(--shztd-line) !important;
	color: var(--shztd-mu) !important;
	font-size: 13px !important;
	font-weight: 600 !important;
	padding: 4px 11px !important;
	margin: 0 !important;
	border-radius: 999px !important;
	cursor: pointer;
	box-shadow: none !important;
	line-height: 1.4 !important;
	min-height: 0 !important;
}
.shztd-chip.is-active {
	background: var(--shztd-accent) !important;
	border-color: var(--shztd-accent) !important;
	color: #fff !important;
}

/* ---------- results ---------- */
.shztd-results {
	margin-top: 14px;
	display: flex;
	flex-direction: column;
	gap: 12px;
	max-height: 62vh;
	overflow-y: auto;
	padding-right: 2px;
}
.shztd-app[data-variant="page"] .shztd-results { max-height: none; }

.shztd-intro {
	text-align: center;
	padding: 30px 16px;
	color: var(--shztd-mu);
}
.shztd-intro-ic {
	font-size: 46px;
	color: var(--shztd-accent);
	margin-bottom: 10px;
	font-weight: 700;
}
.shztd-intro p { margin: 0; font-size: 15px; line-height: 1.6; }

.shztd-empty {
	text-align: center;
	color: var(--shztd-mm);
	padding: 26px 16px;
	font-size: 14px;
	line-height: 1.6;
}
.shztd-loading {
	display: flex;
	align-items: center;
	justify-content: center;
	gap: 8px;
	padding: 22px;
	color: var(--shztd-mu);
	font-size: 14px;
}
.shztd-spin {
	width: 16px; height: 16px;
	border: 2px solid var(--shztd-line);
	border-top-color: var(--shztd-accent);
	border-radius: 50%;
	display: inline-block;
	animation: shztd-spin .7s linear infinite;
}
@keyframes shztd-spin { to { transform: rotate(360deg); } }

/* ---------- card item ---------- */
.shztd-card-item {
	border: 1px solid var(--shztd-line);
	border-radius: 12px;
	padding: 14px 16px;
	background: #fff;
	transition: border-color .15s ease, box-shadow .15s ease;
}
.shztd-card-item:hover {
	border-color: #d3d7dd;
	box-shadow: 0 3px 14px rgba(43, 46, 53, .07);
}
.shztd-c-head {
	display: flex;
	align-items: flex-start;
	justify-content: space-between;
	gap: 10px;
}
.shztd-c-hz {
	font-size: 30px;
	font-weight: 700;
	color: var(--shztd-dk);
	line-height: 1.2;
}
.shztd-c-trad {
	font-size: 16px;
	color: var(--shztd-mm);
	font-weight: 500;
	margin-left: 8px;
}
.shztd-c-acts { display: flex; gap: 6px; flex-shrink: 0; }
.shztd-app .shztd-ic-btn,
.shztd-fab-wrap .shztd-ic-btn {
	appearance: none;
	width: 34px; height: 34px;
	display: flex; align-items: center; justify-content: center;
	border: 1px solid var(--shztd-line) !important;
	background: #fff !important;
	color: var(--shztd-sl) !important;
	border-radius: 50% !important;
	cursor: pointer;
	padding: 0 !important;
	min-width: 0 !important;
	box-shadow: none !important;
	transition: all .15s ease;
}
.shztd-ic-btn:hover {
	border-color: var(--shztd-accent) !important;
	color: var(--shztd-accent) !important;
}
.shztd-ic-btn.is-playing {
	background: var(--shztd-accent) !important;
	color: #fff !important;
	border-color: var(--shztd-accent) !important;
}
.shztd-star.is-active {
	background: #fff6e6 !important;
	border-color: #f2c14e !important;
	color: #e6a817 !important;
}

.shztd-c-meta {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 8px 12px;
	margin: 8px 0 2px;
}
.shztd-c-pinyin {
	font-size: 16px;
	color: var(--shztd-accent);
	font-weight: 600;
}
.shztd-c-hv {
	font-size: 13px;
	color: var(--shztd-mu);
	font-style: italic;
}
.shztd-c-hsk {
	font-size: 11px;
	font-weight: 700;
	color: #fff;
	background: var(--shztd-sl);
	padding: 2px 8px;
	border-radius: 999px;
	letter-spacing: .3px;
}
.shztd-c-mean {
	font-size: 15px;
	color: var(--shztd-dk);
	line-height: 1.55;
	margin-top: 6px;
}

.shztd-c-foot {
	display: flex;
	gap: 8px;
	margin-top: 12px;
}
.shztd-app .shztd-txt-btn,
.shztd-fab-wrap .shztd-txt-btn {
	appearance: none;
	background: var(--shztd-soft) !important;
	border: 1px solid var(--shztd-line) !important;
	color: var(--shztd-mu) !important;
	font-size: 13px !important;
	font-weight: 600 !important;
	padding: 6px 12px !important;
	margin: 0 !important;
	border-radius: 8px !important;
	cursor: pointer;
	box-shadow: none !important;
	line-height: 1.3 !important;
	min-height: 0 !important;
}
.shztd-txt-btn:hover { border-color: #d3d7dd !important; }
.shztd-txt-btn.is-active {
	background: var(--shztd-accent) !important;
	border-color: var(--shztd-accent) !important;
	color: #fff !important;
}

/* ---------- expand: strokes + related ---------- */
.shztd-c-expand {
	margin-top: 12px;
	padding-top: 12px;
	border-top: 1px dashed var(--shztd-line);
}
.shztd-strokes {
	display: flex;
	flex-wrap: wrap;
	gap: 14px;
}
.shztd-stroke-cell {
	display: flex;
	flex-direction: column;
	align-items: center;
	gap: 6px;
}
.shztd-stroke-target {
	width: 100px;
	height: 100px;
	border: 1px solid var(--shztd-line);
	border-radius: 10px;
	background:
		linear-gradient(to right, #f0d9d9 1px, transparent 1px) 50% 0 / 100% 50% no-repeat,
		linear-gradient(to bottom, #f0d9d9 1px, transparent 1px) 0 50% / 50% 100% no-repeat,
		#fff;
}
.shztd-app .shztd-replay,
.shztd-fab-wrap .shztd-replay {
	appearance: none;
	background: transparent !important;
	border: 0 !important;
	color: var(--shztd-mu) !important;
	font-size: 12px !important;
	cursor: pointer;
	padding: 2px 6px !important;
	margin: 0 !important;
	box-shadow: none !important;
	min-height: 0 !important;
}
.shztd-replay:hover { color: var(--shztd-accent) !important; }

.shztd-related { display: flex; flex-direction: column; gap: 8px; }
.shztd-rel-row {
	display: flex;
	align-items: baseline;
	gap: 12px;
	padding: 6px 0;
	border-bottom: 1px solid #f0f2f4;
}
.shztd-rel-row:last-child { border-bottom: 0; }
.shztd-rel-left {
	display: flex;
	align-items: baseline;
	gap: 8px;
	flex-shrink: 0;
	min-width: 120px;
}
.shztd-rel-hz { font-size: 18px; font-weight: 700; color: var(--shztd-dk); }
.shztd-rel-py { font-size: 13px; color: var(--shztd-accent); font-weight: 600; }
.shztd-app .shztd-rel-spk,
.shztd-fab-wrap .shztd-rel-spk {
	appearance: none;
	background: transparent !important;
	border: 0 !important;
	font-size: 13px !important;
	cursor: pointer;
	padding: 0 2px !important;
	margin: 0 !important;
	box-shadow: none !important;
	min-height: 0 !important;
	opacity: .65;
}
.shztd-rel-spk:hover { opacity: 1; }
.shztd-rel-mean { font-size: 14px; color: var(--shztd-mu); line-height: 1.5; }

/* ---------- FAB ---------- */
.shztd-fab-wrap {
	position: fixed;
	right: 20px;
	bottom: 20px;
	z-index: 99990;
}
.shztd-fab {
	appearance: none;
	width: 56px; height: 56px;
	border-radius: 50% !important;
	border: 0 !important;
	background: var(--shztd-accent) !important;
	color: #fff !important;
	cursor: pointer;
	box-shadow: 0 6px 20px rgba(192, 57, 43, .38) !important;
	display: flex; align-items: center; justify-content: center;
	padding: 0 !important;
	min-width: 0 !important;
	transition: transform .18s ease, box-shadow .18s ease;
}
.shztd-fab:hover { transform: translateY(-2px) scale(1.04); }
.shztd-fab-han { font-size: 26px; font-weight: 700; line-height: 1; }
.shztd-fab-wrap.is-open .shztd-fab { transform: rotate(90deg); opacity: .92; }

.shztd-panel {
	position: absolute;
	right: 0;
	bottom: 70px;
	width: 380px;
	max-width: calc(100vw - 40px);
	background: #fff;
	border: 1px solid var(--shztd-line);
	border-radius: 16px;
	box-shadow: 0 12px 40px rgba(43, 46, 53, .22);
	overflow: hidden;
	opacity: 0;
	transform: translateY(12px) scale(.98);
	transform-origin: bottom right;
	transition: opacity .18s ease, transform .18s ease;
	pointer-events: none;
}
.shztd-fab-wrap.is-open .shztd-panel {
	opacity: 1;
	transform: translateY(0) scale(1);
	pointer-events: auto;
}
.shztd-panel-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	padding: 12px 16px;
	background: var(--shztd-accent);
	color: #fff;
}
.shztd-panel-title { font-size: 15px; font-weight: 700; }
.shztd-panel-close {
	appearance: none;
	background: rgba(255, 255, 255, .18) !important;
	border: 0 !important;
	color: #fff !important;
	width: 28px; height: 28px;
	border-radius: 50% !important;
	font-size: 20px !important;
	line-height: 1 !important;
	cursor: pointer;
	padding: 0 !important;
	min-width: 0 !important;
}
.shztd-panel-close:hover { background: rgba(255, 255, 255, .3) !important; }
.shztd-panel .shztd-app { max-width: none; }
.shztd-panel .shztd-inner {
	border: 0;
	border-radius: 0;
	box-shadow: none;
	padding: 14px;
}
.shztd-panel .shztd-results { max-height: 52vh; }

/* ---------- header search variant ---------- */
.shztd-header-search {
	position: relative;
	width: 100%;
	max-width: 460px;
	display: block;
	vertical-align: middle;
}
/* keep enough room so typed text never sits under the clear (x) or the icon */
.shztd-header-search .shztd-input {
	padding-left: 38px !important;
	padding-right: 40px !important;
}
.shztd-app[data-variant="header"] .shztd-inner {
	border: 0;
	padding: 0;
	box-shadow: none;
	background: transparent;
	border-radius: 0;
}
.shztd-app[data-variant="header"] .shztd-input {
	padding-top: 9px !important;
	padding-bottom: 9px !important;
	font-size: 15px !important;
}
/* header search bar split into two zones: input field + arrow to full page */
.shztd-header-search .shztd-searchbar {
	align-items: stretch;
}
.shztd-hs-field {
	position: relative;
	flex: 1 1 auto;
	min-width: 0;
	display: flex;
	align-items: center;
}
.shztd-header-search .shztd-input {
	width: 100% !important;
	border-top-right-radius: 0 !important;
	border-bottom-right-radius: 0 !important;
	border-right-width: 0 !important;
}
.shztd-app a.shztd-hs-arrow {
	flex: 0 0 auto;
	width: 50px;
	display: inline-flex !important;
	align-items: center;
	justify-content: center;
	text-decoration: none !important;
	color: #fff !important;
	background: var(--shztd-accent) !important;
	border: 2px solid var(--shztd-accent) !important;
	border-top-left-radius: 0 !important;
	border-bottom-left-radius: 0 !important;
	border-top-right-radius: 999px !important;
	border-bottom-right-radius: 999px !important;
	box-shadow: none !important;
	transition: filter .15s ease;
}
.shztd-hs-arrow:hover { filter: brightness(.9); }
.shztd-hs-arrow svg { display: block; }
.shztd-hs-dropdown {
	position: absolute;
	top: calc(100% + 8px);
	left: 0;
	right: 0;
	min-width: 320px;
	max-width: 92vw;
	background: #fff;
	border: 1px solid var(--shztd-line);
	border-radius: 14px;
	box-shadow: 0 12px 40px rgba(43, 46, 53, .22);
	padding: 10px;
	z-index: 99995;
}
.shztd-hs-dropdown .shztd-results {
	margin-top: 0;
	max-height: 66vh;
}
.shztd-app a.shztd-hs-more {
	display: block;
	text-align: center;
	margin-top: 8px;
	padding-top: 10px;
	border-top: 1px solid var(--shztd-line);
	color: var(--shztd-accent) !important;
	text-decoration: none !important;
	font-weight: 600;
	font-size: 13px;
}
.shztd-hs-more:hover { text-decoration: underline !important; }

/* ---------- round-button hardening: defend shape against theme overrides ---------- */
.shztd-app .shztd-ic-btn,
.shztd-fab-wrap .shztd-ic-btn,
.shztd-app .shztd-clear,
.shztd-fab-wrap .shztd-clear,
.shztd-fab-wrap .shztd-panel-close,
.shztd-fab-wrap .shztd-fab {
	align-items: center !important;
	justify-content: center !important;
	flex: 0 0 auto !important;
	min-width: 0 !important;
	min-height: 0 !important;
	line-height: 1 !important;
	padding: 0 !important;
	text-transform: none !important;
	letter-spacing: 0 !important;
	font-weight: 400 !important;
	box-sizing: border-box !important;
	overflow: hidden;
}
.shztd-app .shztd-ic-btn,
.shztd-fab-wrap .shztd-ic-btn,
.shztd-fab-wrap .shztd-panel-close,
.shztd-fab-wrap .shztd-fab {
	display: inline-flex !important;
}
.shztd-app .shztd-clear,
.shztd-fab-wrap .shztd-clear {
	display: none !important;
}
.shztd-app .shztd-clear.is-visible,
.shztd-fab-wrap .shztd-clear.is-visible {
	display: inline-flex !important;
}
.shztd-app .shztd-ic-btn,
.shztd-fab-wrap .shztd-ic-btn {
	width: 34px !important;
	height: 34px !important;
	border-radius: 50% !important;
}
.shztd-app .shztd-clear,
.shztd-fab-wrap .shztd-clear {
	width: 26px !important;
	height: 26px !important;
	border-radius: 50% !important;
}
.shztd-fab-wrap .shztd-panel-close {
	width: 30px !important;
	height: 30px !important;
	border-radius: 50% !important;
}
.shztd-fab-wrap .shztd-fab {
	width: 56px !important;
	height: 56px !important;
	border-radius: 50% !important;
}
.shztd-app .shztd-ic-btn svg,
.shztd-fab-wrap .shztd-ic-btn svg,
.shztd-app .shztd-clear svg,
.shztd-fab-wrap .shztd-clear svg,
.shztd-fab-wrap .shztd-panel-close svg {
	display: block;
	width: auto;
	height: auto;
}

/* ---------- responsive ---------- */
@media (max-width: 600px) {
	.shztd-app .shztd-inner { padding: 14px; }
	.shztd-app[data-variant="header"] .shztd-inner { padding: 0; }
	.shztd-c-hz { font-size: 26px; }
	.shztd-fab-wrap { right: 14px; bottom: 14px; }
	.shztd-panel {
		position: fixed;
		right: 8px;
		left: 8px;
		bottom: 78px;
		width: auto;
		max-width: none;
	}
	.shztd-header-search { max-width: none; display: block; width: 100%; }
	.shztd-app a.shztd-hs-arrow { width: 44px; }
	.shztd-header-search .shztd-input { padding-left: 36px !important; padding-right: 38px !important; }
	.shztd-hs-dropdown {
		position: fixed;
		left: 8px;
		right: 8px;
		top: auto;
		min-width: 0;
	}
	.shztd-rel-row { flex-direction: column; gap: 2px; }
	.shztd-rel-left { min-width: 0; }
}