/* ============================================================
   Articles archive (Knowledge Base) — Figma-aligned, design tokens
   ============================================================ */

.ph-main.ph-articles-archive {
	padding-bottom: var(--ph-space-xl);
	background-color: var(--ph-gray-bg);
}

.ph-articles-archive .ph-sr-only {
	position: absolute;
	width: 1px;
	height: 1px;
	padding: 0;
	margin: -1px;
	overflow: hidden;
	clip: rect(0, 0, 0, 0);
	white-space: nowrap;
	border: 0;
}

/* ── Hero ─────────────────────────────────────────────────── */
.ph-articles-hero {
	padding: clamp(34px, 6vw, 120px) 0 clamp(34px, 6vw, 120px);
	text-align: center;
}

.ph-articles-hero__inner {
	max-width: 780px;
	margin: 0 auto;
}

.ph-articles-hero__title {
	font-size: clamp(36px, 5vw, 64px);
	font-weight: var(--ph-fw-extra);
	color: var(--ph-black);
	line-height: 1.2;
	letter-spacing: 0.02em;
	margin: 0 0 12px;
}

.ph-articles-hero__subtitle {
	font-size: clamp(18px, 2vw, 21px);
	color: var(--ph-gray);
	line-height: 1.55;
	letter-spacing: 0.02em;
	margin: 0 auto 34px;
	font-weight: var(--ph-fw-medium);
}

/* Search — full pill, icon only (no submit circle) */
.ph-articles-search {
	display: flex;
    align-items: center;
    width: 100%;
    max-width: 760px;
    margin: 0 auto 22px;
    background: var(--ph-white);
    border: 1.25px solid var(--ph-green);
    border-radius: var(--ph-border-radius-pill);
    box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    padding: 10px;
}

.ph-articles-search__icon {
	display: flex;
	align-items: center;
	justify-content: center;
	flex-shrink: 0;
	width: 50px;
	color: var(--ph-gray);
}

.ph-articles-search__icon svg {
	display: block;
}

.ph-articles-search__input {
	flex: 1;
	min-width: 0;
	border: 0;
	padding: 15px 16px 15px 0;
	font-size: var(--ph-text-md);
	color: var(--ph-black);
	background: transparent;
	outline: none;
}

.ph-articles-search__input::placeholder {
	color: var(--ph-gray-mid);
}

.ph-articles-quick {
	display: flex;
	flex-wrap: wrap;
	align-items: center;
	justify-content: center;
	gap: 10px;
	margin: 0;
	padding: 0;
}

.ph-articles-quick__label {
	font-size: 18px;
	font-weight: var(--ph-fw-medium);
	color: var(--ph-gray);
	line-height: 1.2;
	margin-right: 6px;
}

.ph-articles-quick__link {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	height: 32px;
	padding: 0 16px;
	border-radius: 999px;
	border: 1px solid #e9ecef;
	background: var(--ph-white);
	font-size: 14px;
	font-weight: var(--ph-fw-medium);
	color: #4b5563;
	text-decoration: none;
	transition: color var(--ph-transition), border-color var(--ph-transition), box-shadow var(--ph-transition);
}

.ph-articles-quick__link:hover {
	border-color: #d3d7dc;
	color: var(--ph-green);
	box-shadow: 0 1px 4px rgba(0, 0, 0, 0.05);
}

@media (max-width: 640px) {
	.ph-articles-quick__label {
		width: 100%;
		margin-right: 0;
	}
}

/* ── Featured ─────────────────────────────────────────────── */
.ph-articles-featured {
	padding-bottom: clamp(36px, 5vw, 56px);
}

.ph-articles-featured__heading {
	font-size: clamp(22px, 2.5vw, 35px);
	font-weight: var(--ph-fw-extra);
	color: var(--ph-black);
	margin: 0 0 clamp(20px, 3vw, 28px);
	text-align: left;
}

.ph-articles-featured__grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 24px;
	list-style: none;
	margin: 0;
	padding: 0;
}

@media (min-width: 768px) {
	.ph-articles-featured__grid {
		grid-template-columns: repeat(3, 1fr);
		gap: 24px;
	}
}

.ph-articles-fcard {
	margin: 0;
	padding: 0;
	min-height: 100%;
}

.ph-articles-fcard__link {
    display: flex;
    flex-direction: column;
    height: 100%;
    text-decoration: none;
    color: inherit;
    background: var(--ph-white);
    border: 1px solid var(--ph-border);
    border-radius: 40px;
    padding: 30px;
    box-shadow: 0 2px 14px rgba(16, 24, 40, 0.04);
	transition: transform var(--ph-transition), box-shadow var(--ph-transition),  border-color var(--ph-transition);
}

.ph-articles-fcard__link:hover {
	border-color: rgba(70, 159, 16, 0.28);
	box-shadow: 0 10px 30px rgba(16, 24, 40, 0.09);
	transform: translateY(-2px);
}
.ph-articles-fcard__link:hover .ph-articles-fcard__title{
	text-decoration: underline;
}

.ph-articles-fcard__media {
	position: relative;
	aspect-ratio: 400 / 220;
	background: var(--ph-gray-light);
	border-radius: 24px;
	overflow: hidden;
}

.ph-articles-fcard__img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.ph-articles-fcard__img--placeholder {
	min-height: 180px;
	background: linear-gradient(135deg, var(--ph-green-light), var(--ph-gray-bg));
}

.ph-articles-fcard__cats {
	display: flex;
	flex-wrap: wrap;
	gap: 6px;
	margin: 14px 8px 0;
}

.ph-articles-fcard__cat {
	font-size: 11px;
	font-weight: var(--ph-fw-semi);
	letter-spacing: 0.08em;
	color: var(--ph-green);
	margin: 0;
	line-height: 1.25;
	background: var(--ph-green-bg);
	width: fit-content;
	padding: 4px 10px;
	border-radius: 999px;
	border: 1px solid rgba(70, 159, 16, 0.35);
	white-space: normal;
	overflow-wrap: anywhere;
}

.ph-articles-fcard__title {
	font-size: clamp(18px, 2vw, 22px);
	font-weight: var(--ph-fw-bold);
	color: var(--ph-black);
	line-height: 1.28;
	margin: 8px 8px 0;
}

.ph-articles-fcard__excerpt {
	font-size: 15px;
	color: var(--ph-gray);
	line-height: 1.48;
	margin: 8px 8px 0;
	flex: 1;
	display: -webkit-box;
	line-clamp: 4;
	-webkit-line-clamp: 4;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.ph-articles-fcard__meta {
	display: flex;
	align-items: center;
	gap: 8px;
	margin: auto 8px 0;
	padding-top: 12px;
	font-size: 17px;
	color: var(--ph-gray-mid);
}

.ph-articles-fcard__clock {
	display: flex;
	color: var(--ph-gray-mid);
}

.ph-articles-fcard__clock svg {
	display: block;
}

/* ── Board + segmented tabs ───────────────────────────────── */
.ph-articles-board {
	padding-bottom: clamp(40px, 6vw, 64px);
}

.ph-articles-board__surface {
	padding: 28px 22px 36px;
}

@media (min-width: 768px) {
	.ph-articles-board__surface {
		padding: 36px 36px 44px;
	}
}

.ph-art-tabs {
	margin: 0 0 clamp(28px, 4vw, 36px);
	overflow-x: auto;
	-webkit-overflow-scrolling: touch;
	scrollbar-width: none;
}

.ph-art-tabs::-webkit-scrollbar {
	display: none;
}

.ph-art-tabs__track {
	display: inline-flex;
	justify-content: center;
    align-items: stretch;
    min-width: 100%;
    width: max-content;
    background: var(--ph-white);
    border: 1px solid var(--ph-border);
    border-radius: 30px;
    padding: 16px 24px;
    gap: 10px;
    box-sizing: border-box;
}

.ph-art-tabs__pill {
	position: relative;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid var(--ph-border);
    background: transparent;
    font-size: var(--ph-text-sm);
    font-weight: var(--ph-fw-semi);
    color: var(--ph-gray);
    text-decoration: none;
    white-space: nowrap;
    cursor: pointer;
    transition: background var(--ph-transition), color var(--ph-transition);
    flex: 0 0 auto;
}


.ph-art-tabs__pill.is-active::after,
.ph-art-tabs__pill:hover.is-active::after {
	opacity: 0;
}

.ph-art-tabs__pill:hover {
	color: var(--ph-black);
}

.ph-art-tabs__pill.is-active {
	background: var(--ph-green);
	color: var(--ph-white);
	border-color: var(--ph-green);
}

.ph-art-tabs__pill.is-active:hover {
	color: var(--ph-white);
}

/* ── Grid cards ───────────────────────────────────────────── */
.ph-articles-grid {
	display: grid;
	grid-template-columns: 1fr;
	gap: 26px;
	margin: 0;
	padding: 0;
}

@media (min-width: 640px) {
	.ph-articles-grid {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (min-width: 1024px) {
	.ph-articles-grid {
		grid-template-columns: repeat(3, 1fr);
		gap: 35px;
	}
}

.ph-articles-card {
	margin: 0;
	padding: 0;
	min-width: 0;
}

.ph-articles-card__link {
	display: block;
	text-decoration: none;
	color: inherit;
	border-radius: 14px;
	overflow: hidden;
	transition: transform var(--ph-transition), box-shadow var(--ph-transition);
}

.ph-articles-card__link:hover {
	transform: translateY(-2px);
}
.ph-articles-card__link:hover .ph-articles-card__title{
	text-decoration: underline;
}

.ph-articles-card__media {
	position: relative;
	aspect-ratio: 400 / 235;
	background: var(--ph-gray-light);
	border-radius: 16px;
	overflow: hidden;
	margin-bottom: 16px;
}

.ph-articles-card__img {
	width: 100%;
	height: 100%;
	object-fit: cover;
	display: block;
}

.ph-articles-card__img--placeholder {
	min-height: 200px;
	background: linear-gradient(135deg, var(--ph-green-light), var(--ph-gray-bg));
}

.ph-articles-card__row {
	display: flex;
	align-items: center;
	justify-content: space-between;
	gap: 12px;
	margin-bottom: 12px;
}

.ph-articles-card__cats {
	display: flex;
	flex-wrap: wrap;
	gap: 10px;
	min-width: 0;
	align-items: center;
}

.ph-articles-card__cat {
    font-size: 11px;
    font-weight: var(--ph-fw-semi);
    letter-spacing: 0.08em;
    color: var(--ph-green);
    margin: 0;
    line-height: 1.25;
    background: var(--ph-green-bg);
    width: fit-content;
    padding: 4px 10px;
    border-radius: 999px;
    border: 1px solid rgba(70, 159, 16, 0.35);
    white-space: normal;
}

.ph-articles-card__cat--empty {
	min-height: 1em;
}

.ph-articles-card__read {
	flex-shrink: 0;
	display: inline-flex;
	align-items: center;
	gap: 6px;
	font-size: 14px;
	font-weight: var(--ph-fw-medium);
	color: var(--ph-gray-mid);
	line-height: 1;
	padding: 5px 8px;
	border-radius: 7px;
	background: #f3f4f6;
}

.ph-articles-card__clock {
	display: inline-flex;
	align-items: center;
	justify-content: center;
	color: var(--ph-gray-mid);
}

.ph-articles-card__clock svg {
	display: block;
}

.ph-articles-card__title {
	font-size: clamp(22px, 2.2vw, 30px);
	font-weight: var(--ph-fw-bold);
	color: var(--ph-black);
	line-height: 1.2;
	margin-bottom: 10px;
	display: -webkit-box;
	-webkit-box-orient: vertical;
	overflow: hidden;
}

.ph-articles-board__empty,
.ph-articles-board__no-matches {
	text-align: center;
	color: var(--ph-gray);
	font-size: var(--ph-text-md);
	margin: 24px 0;
}

/* ── Pagination ───────────────────────────────────────────── */
.ph-articles-pager {
	display: flex;
	align-items: center;
	justify-content: center;
	flex-wrap: wrap;
	gap: 8px 12px;
	margin-top: clamp(32px, 4vw, 40px);
}

.ph-articles-pager__arr {
	width: 40px;
	height: 40px;
	border-radius: 50%;
	border: 1px solid var(--ph-border);
	background: var(--ph-white);
	color: var(--ph-black);
	display: flex;
	align-items: center;
	justify-content: center;
	cursor: pointer;
	transition: border-color var(--ph-transition), color var(--ph-transition);
	flex-shrink: 0;
}

.ph-articles-pager__arr:hover:not(:disabled) {
	border-color: var(--ph-green);
	color: var(--ph-green);
}

.ph-articles-pager__arr:disabled {
	opacity: 0.35;
	cursor: not-allowed;
}

.ph-articles-pager__nums {
	display: flex;
	align-items: center;
	flex-wrap: wrap;
	gap: 6px;
}

.ph-articles-pager__num {
	min-width: 40px;
	height: 40px;
	padding: 0 10px;
	border-radius: 50%;
	border: none;
	background: transparent;
	font-size: var(--ph-text-sm);
	font-weight: var(--ph-fw-semi);
	color: var(--ph-gray);
	cursor: pointer;
	transition: background var(--ph-transition), color var(--ph-transition);
}

.ph-articles-pager__num:hover {
	color: var(--ph-green);
}

.ph-articles-pager__num.is-active {
	background: var(--ph-green);
	color: var(--ph-white);
}

.ph-articles-pager__num.is-active:hover {
	color: var(--ph-white);
}

.ph-articles-pager__ellipsis {
	padding: 0 6px;
	font-size: var(--ph-text-sm);
	color: var(--ph-gray-mid);
	user-select: none;
}

/* ── Explore problems strip ─────────────────────────────────── */
.ph-articles-explore {
	padding: clamp(48px, 8vw, 80px) 0 clamp(48px, 8vw, 80px);
	background: var(--ph-white);
    border: 1px solid var(--ph-border);
}

.ph-articles-explore__surface {
	padding: clamp(28px, 5vw, 48px) clamp(20px, 4vw, 40px);
	text-align: center;
}

.ph-articles-explore__title {
	font-size: clamp(22px, 2.8vw, 34px);
	font-weight: var(--ph-fw-extra);
	color: var(--ph-black);
	margin: 0 0 12px;
	line-height: 1.25;
}

.ph-articles-explore__subtitle {
	font-size: var(--ph-text-md);
	color: var(--ph-gray);
	line-height: 1.6;
	margin: 0 auto 28px;
	max-width: 520px;
}

.ph-articles-explore__pills {
	list-style: none;
	margin: 0 auto 28px;
	padding: 0;
	display: grid;
	grid-template-columns: 1fr 1fr;
	gap: 12px;
	max-width: 720px;
}

@media (min-width: 520px) {
	.ph-articles-explore__pills {
		grid-template-columns: repeat(2, 1fr);
	}
}

@media (min-width: 900px) {
	.ph-articles-explore__pills {
		grid-template-columns: repeat(3, 1fr);
	}
}

.ph-articles-explore__pill {
	display: flex;
	align-items: center;
	justify-content: center;
	min-height: 48px;
	padding: 12px 18px;
	border-radius: var(--ph-border-radius-pill);
	border: 1px solid var(--ph-border);
	background: var(--ph-white);
	font-size: var(--ph-text-sm);
	font-weight: var(--ph-fw-semi);
	color: var(--ph-black);
	text-decoration: none;
	transition: border-color var(--ph-transition), color var(--ph-transition);
}

.ph-articles-explore__pill:hover {
	border-color: var(--ph-green);
	color: var(--ph-green);
}

.ph-articles-explore__cta {
	margin-top: 8px;
	min-height: 48px;
	padding: 12px 28px;
	border-radius: var(--ph-border-radius-pill);
	background: var(--ph-black);
	color: var(--ph-white);
	border: 1px solid var(--ph-black);
	font-weight: var(--ph-fw-semi);
	text-decoration: none;
	display: inline-flex;
	align-items: center;
	justify-content: center;
	transition: background var(--ph-transition), border-color var(--ph-transition), color var(--ph-transition);
}

.ph-articles-explore__cta:hover {
	background: var(--ph-gray-dark);
	border-color: var(--ph-gray-dark);
	color: var(--ph-white);
}