/**
 * TT Simple Comments
 * Aligns with tech-tutorials theme tokens when available.
 */

.ttsc,
.ttsc-modal {
	--ttsc-bg: var(--tt-surface, #fff);
	--ttsc-text: var(--tt-text, #1a1f2c);
	--ttsc-muted: var(--tt-muted, #5c6578);
	--ttsc-border: var(--tt-border, #d8dee9);
	--ttsc-accent: var(--tt-accent, #0b6e4f);
	--ttsc-accent-soft: var(--tt-accent-soft, #e6f4ef);
	--ttsc-radius: var(--tt-radius, 8px);
	--ttsc-font: var(--tt-font, "Source Sans 3", "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif);
}

.ttsc {
	margin-top: 0.5rem;
	font-family: var(--ttsc-font);
	color: var(--ttsc-text);
}

.ttsc__title {
	margin: 0;
	font-size: 1.25rem;
	font-weight: 700;
}

button.ttsc__toggle {
	appearance: none;
	border: 0;
	background: transparent;
	padding: 0;
	margin: 0;
	display: inline-flex;
	align-items: center;
	gap: 0.45rem;
	font: inherit;
	font-size: 1.25rem;
	font-weight: 700;
	color: inherit;
	cursor: pointer;
	text-align: left;
}

button.ttsc__toggle:hover {
	color: var(--ttsc-accent, #0b6e4f);
}

.ttsc__chevron {
	display: inline-block;
	width: 0.55rem;
	height: 0.55rem;
	border-right: 2px solid currentColor;
	border-bottom: 2px solid currentColor;
	transform: rotate(45deg);
	transition: transform 0.18s ease;
	margin-top: -0.2rem;
	opacity: 0.7;
}

button.ttsc__toggle[aria-expanded="false"] .ttsc__chevron {
	transform: rotate(-45deg);
	margin-top: 0.15rem;
}

.ttsc-panel.is-collapsed {
	display: none;
}

.ttsc-head {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 0.75rem;
	margin: 0 0 1.25rem;
	padding-bottom: 0.65rem;
	border-bottom: 1px solid var(--ttsc-border);
}

.ttsc:has(.ttsc-panel.is-collapsed) .ttsc-head {
	margin-bottom: 0;
}

.ttsc-head .ttsc-open-btn {
	flex-shrink: 0;
	padding: 0.4rem 0.9rem;
	font-size: 0.92rem;
}

.ttsc-list,
.ttsc-list .children {
	list-style: none;
	margin: 0;
	padding: 0;
}

.ttsc-list .children {
	margin: 0.85rem 0 0 1.15rem;
	padding-left: 0.85rem;
	border-left: 2px solid var(--ttsc-border);
}

.ttsc-item {
	margin: 0 0 1rem;
}

.ttsc-body {
	background: var(--ttsc-bg);
	border: 1px solid var(--ttsc-border);
	border-radius: var(--ttsc-radius);
	padding: 0.95rem 1.05rem;
}

.ttsc-meta {
	display: flex;
	gap: 0.75rem;
	align-items: flex-start;
	margin-bottom: 0.65rem;
}

.ttsc-avatar__img {
	display: block;
	width: 44px;
	height: 44px;
	border-radius: 50%;
	background: var(--ttsc-accent-soft);
}

.ttsc-meta__text {
	display: flex;
	flex-direction: column;
	gap: 0.15rem;
	min-width: 0;
}

.ttsc-author {
	font-weight: 600;
	line-height: 1.35;
}

.ttsc-author a {
	color: var(--ttsc-text);
	text-decoration: none;
}

.ttsc-author a:hover {
	color: var(--ttsc-accent);
}

.ttsc-date,
.ttsc-date a {
	font-size: 0.82rem;
	color: var(--ttsc-muted);
	text-decoration: none;
}

.ttsc-date a:hover {
	color: var(--ttsc-accent);
}

.ttsc-awaiting {
	display: inline-block;
	margin-top: 0.2rem;
	font-size: 0.82rem;
	color: #9a6700;
	background: #fff8e6;
	padding: 0.15rem 0.45rem;
	border-radius: 4px;
}

.ttsc-content {
	font-size: 0.98rem;
	line-height: 1.7;
	word-break: break-word;
}

.ttsc-content p:first-child {
	margin-top: 0;
}

.ttsc-content p:last-child {
	margin-bottom: 0;
}

.ttsc-content .ql-syntax {
	overflow: auto;
	background-color: #f5f5f5;
}

.ttsc-actions {
	display: flex;
	flex-wrap: wrap;
	gap: 0.75rem;
	margin-top: 0.65rem;
	font-size: 0.88rem;
}

.ttsc-reply a,
.ttsc-edit a {
	color: var(--ttsc-accent);
	text-decoration: none;
	font-weight: 600;
}

.ttsc-reply a:hover,
.ttsc-edit a:hover {
	text-decoration: underline;
}

.ttsc-pagination {
	display: flex;
	gap: 0.5rem;
	flex-wrap: wrap;
	margin: 1rem 0 1.5rem;
}

.ttsc-pagination .page-numbers {
	display: inline-block;
	padding: 0.3rem 0.65rem;
	border: 1px solid var(--ttsc-border);
	border-radius: 6px;
	background: var(--ttsc-bg);
	color: var(--ttsc-text);
	text-decoration: none;
}

.ttsc-pagination .page-numbers.current,
.ttsc-pagination .page-numbers:hover {
	background: var(--ttsc-accent);
	border-color: var(--ttsc-accent);
	color: #fff;
}

.ttsc-closed {
	color: var(--ttsc-muted);
	margin: 0.5rem 0 1rem;
}

.ttsc-open-btn {
	appearance: none;
	border: 0;
	cursor: pointer;
	display: inline-block;
	padding: 0.55rem 1.2rem;
	background: #0b6e4f;
	color: #fff;
	border-radius: 6px;
	font: inherit;
	font-weight: 600;
}

.ttsc-open-btn:hover {
	filter: brightness(1.05);
}

.ttsc-modal[hidden] {
	display: none !important;
}

.ttsc-modal {
	position: fixed;
	inset: 0;
	z-index: 10000;
	display: flex;
	align-items: center;
	justify-content: center;
	padding: 1rem;
	font-family: var(--ttsc-font);
	color: var(--ttsc-text);
}

.ttsc-modal__backdrop {
	position: absolute;
	inset: 0;
	background: rgba(10, 16, 28, 0.62);
}

.ttsc-modal__dialog {
	position: relative;
	z-index: 1;
	width: min(100%, 560px);
	max-height: min(90vh, 720px);
	overflow: auto;
	background: #fff;
	border: 1px solid #c9d2e0;
	border-radius: calc(var(--ttsc-radius) + 2px);
	box-shadow:
		0 0 0 1px rgba(15, 23, 42, 0.08),
		0 22px 60px rgba(10, 16, 28, 0.35);
	padding: 1.25rem 1.25rem 1.35rem;
}

.ttsc-modal__close {
	position: absolute;
	top: 0.55rem;
	right: 0.65rem;
	appearance: none;
	border: 0;
	background: transparent;
	color: var(--ttsc-muted);
	font-size: 1.5rem;
	line-height: 1;
	cursor: pointer;
	padding: 0.2rem 0.4rem;
	z-index: 2;
}

.ttsc-modal__close:hover {
	color: var(--ttsc-text);
}

/* Form inside modal */
.ttsc-respond {
	margin-top: 0;
	background: transparent;
	border: 0;
	border-radius: 0;
	padding: 0;
}

.ttsc-respond .comment-reply-title {
	margin: 0 1.75rem 1rem 0;
	font-size: 1.15rem;
}

.ttsc-respond .comment-reply-title small {
	margin-left: 0.5rem;
	font-size: 0.85rem;
	font-weight: 500;
}

.ttsc-respond .comment-reply-title small a {
	color: var(--ttsc-muted);
}

.ttsc-form {
	display: grid;
	gap: 0.85rem;
}

.ttsc-form__field {
	margin: 0;
	display: flex;
	flex-direction: column;
	gap: 0.35rem;
}

.ttsc-form__field label {
	font-size: 0.9rem;
	font-weight: 600;
	color: var(--ttsc-text);
}

.ttsc-form__field .required {
	color: #c0392b;
}

.ttsc-form__field input[type="text"],
.ttsc-form__field input[type="email"],
.ttsc-form__field input[type="url"],
.ttsc-form__field textarea,
.ttsc-captcha__input {
	width: 100%;
	max-width: 100%;
	box-sizing: border-box;
	border: 1px solid #c9d2e0;
	border-radius: 6px;
	padding: 0.55rem 0.7rem;
	font: inherit;
	color: #1a1f2c;
	background: #fff;
	transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.ttsc-form__field input:focus,
.ttsc-form__field textarea:focus,
.ttsc-captcha__input:focus {
	outline: none;
	border-color: #0b6e4f;
	box-shadow: 0 0 0 3px #e6f4ef;
}

.ttsc-captcha {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	gap: 0.5rem;
}

.ttsc-captcha__img {
	display: block;
	width: 120px;
	height: 40px;
	border: 1px solid #c9d2e0;
	border-radius: 6px;
	background: #f6f8fa;
	cursor: pointer;
}

.ttsc-captcha__img.is-loading {
	opacity: 0.55;
}

.ttsc-captcha__refresh {
	appearance: none;
	border: 1px solid #c9d2e0;
	background: #fff;
	color: #1a1f2c;
	border-radius: 6px;
	width: 40px;
	height: 40px;
	font-size: 1.15rem;
	line-height: 1;
	cursor: pointer;
}

.ttsc-captcha__refresh:hover {
	border-color: #0b6e4f;
	color: #0b6e4f;
}

.ttsc-captcha__input {
	flex: 1 1 120px;
	min-width: 120px;
	max-width: 180px;
	letter-spacing: 0.08em;
	text-transform: uppercase;
}

.ttsc-form__field--cookies label {
	display: flex;
	align-items: flex-start;
	gap: 0.45rem;
	font-weight: 500;
	color: #5c6578;
	font-size: 0.86rem;
	line-height: 1.45;
}

.ttsc-form__field--cookies input {
	margin-top: 0.2rem;
}

.ttsc-form__submit {
	margin: 0.25rem 0 0;
}

.ttsc-submit,
.ttsc-modal .ttsc-submit,
#ttsc-submit {
	appearance: none;
	border: 0;
	cursor: pointer;
	display: inline-block;
	padding: 0.55rem 1.2rem;
	background: #0b6e4f;
	color: #fff !important;
	border-radius: 6px;
	font: inherit;
	font-weight: 600;
}

.ttsc-submit:hover,
.ttsc-modal .ttsc-submit:hover,
#ttsc-submit:hover {
	filter: brightness(1.05);
}

.ttsc-submit:disabled,
.ttsc-modal .ttsc-submit:disabled,
#ttsc-submit:disabled {
	opacity: 0.65;
	cursor: wait;
}

.logged-in-as,
.must-log-in {
	margin: 0 0 0.85rem;
	font-size: 0.9rem;
	color: #5c6578;
}

@media (min-width: 640px) {
	.ttsc-form:not(.ttsc-form--compact) {
		grid-template-columns: 1fr 1fr 1fr;
	}

	.ttsc-form__field--comment,
	.ttsc-form__field--captcha,
	.ttsc-form__field--cookies,
	.ttsc-form__submit,
	.logged-in-as,
	.must-log-in {
		grid-column: 1 / -1;
	}

	.ttsc-list .children {
		margin-left: 1.75rem;
	}
}

@media (max-width: 639px) {
	.ttsc-list .children {
		margin-left: 0.5rem;
		padding-left: 0.55rem;
	}

	.ttsc-body {
		padding: 0.8rem 0.85rem;
	}

	.ttsc-modal__dialog {
		padding: 1.1rem 1rem 1.15rem;
	}
}