/*
 * Piros design system — plain CSS, no build step.
 * Change colours, radius and spacing through the tokens in :root.
 * Layout uses logical properties (inline-start/end) so it is correct in RTL.
 */

@font-face {
    font-family: "Vazirmatn";
    src: url("../fonts/Vazirmatn-Variable.f6d31671339d.woff2") format("woff2-variations");
    font-weight: 100 900;
    font-display: swap;
}

:root {
    /*
     * Brand palette: #065f67 #2c838a #64a0a1 #c98139 #c49d5a #e8e6f3.
     * Text and buttons use the dark teal (white on #2c838a is only 4.45:1);
     * the lighter teals, copper and sand are for decoration and large text.
     */
    --color-bg: #f6f5fa;
    --color-surface: #ffffff;
    --color-tint: #e8e6f3;
    --color-text: #1d2433;
    --color-muted: #5b6475;
    --color-border: #dedbec;
    --color-primary: #065f67;
    --color-primary-dark: #04464c;
    --color-primary-ink: #033a3f;
    --color-secondary: #2c838a;
    --color-sage: #64a0a1;
    --color-accent: #c98139;
    --color-accent-hover: #b5732f;
    --color-accent-ink: #2a1a05;
    --color-accent-soft: #e0a868; /* copper text on dark teal */
    --color-sand: #c49d5a;

    /* Card placeholder colours, one per content type (all pass 3:1 for the large white label) */
    --type-project: #065f67;
    --type-article: #2c838a;
    --type-event: #a8662a;
    --type-course: #457f80;
    --type-protocol: #033a3f;

    --radius: 14px;
    --radius-sm: 8px;
    --shadow: 0 1px 2px rgb(16 24 40 / 6%), 0 4px 16px rgb(16 24 40 / 6%);
    --shadow-lg: 0 12px 32px rgb(16 24 40 / 14%);
    --container: 1200px;
    --gutter: 16px;
}

/* ---------- Base ---------- */

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    font-family: "Vazirmatn", Tahoma, sans-serif;
    font-size: 16px;
    line-height: 1.85;
    color: var(--color-text);
    background: var(--color-bg);
}

h1,
h2,
h3 {
    line-height: 1.45;
    font-weight: 800;
}

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

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

img {
    max-width: 100%;
    height: auto;
}

:focus-visible {
    outline: 3px solid var(--color-accent);
    outline-offset: 2px;
}

.container {
    width: 100%;
    max-width: var(--container);
    margin-inline: auto;
    padding-inline: var(--gutter);
}

.muted {
    color: var(--color-muted);
}

.ltr-inline {
    unicode-bidi: isolate;
    text-align: end;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
}

.skip-link {
    position: absolute;
    inset-inline-start: 16px;
    top: -60px;
    z-index: 100;
    padding: 8px 16px;
    background: var(--color-surface);
    border-radius: var(--radius-sm);
}

.skip-link:focus {
    top: 8px;
}

/* ---------- Buttons & form controls ---------- */

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 22px;
    border: 0;
    border-radius: 999px;
    background: var(--color-primary);
    color: #fff;
    font: inherit;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    transition: background-color 0.15s, transform 0.15s;
}

.button:hover {
    background: var(--color-primary-dark);
    color: #fff;
}

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

.button--accent {
    background: var(--color-accent);
    color: var(--color-accent-ink);
}

.button--accent:hover {
    background: var(--color-accent-hover);
    color: var(--color-accent-ink);
}

.button--light {
    background: #fff;
    color: var(--color-primary-ink);
}

.button--light:hover {
    background: var(--color-tint);
    color: var(--color-primary-ink);
}

.button--block {
    width: 100%;
}

input[type="search"],
input[type="text"],
select {
    width: 100%;
    min-height: 44px;
    padding: 8px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    color: var(--color-text);
    font: inherit;
}

.field {
    display: block;
    min-width: 0;
}

.field__label {
    display: block;
    margin-bottom: 4px;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-muted);
}

.check {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.95rem;
}

.check input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.badge {
    display: inline-block;
    padding: 2px 12px;
    border-radius: 999px;
    background: var(--color-tint);
    color: var(--color-primary-ink);
    font-size: 0.85rem;
    font-weight: 600;
}

/* ---------- Header ---------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgb(255 255 255 / 95%);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
    display: flex;
    align-items: center;
    gap: 24px;
    min-height: 68px;
}

.brand {
    display: flex;
    align-items: center;
    flex-shrink: 0;
}

.brand__logo {
    display: block;
    width: auto;
    height: 48px;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
}

.site-nav ul {
    display: flex;
    gap: 4px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-nav a {
    display: block;
    padding: 8px 12px;
    border-radius: var(--radius-sm);
    color: var(--color-text);
    font-weight: 600;
    text-decoration: none;
    white-space: nowrap;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
    background: var(--color-tint);
    color: var(--color-primary-dark);
}

.site-search {
    margin-inline-start: auto;
    width: 220px;
}

.site-search input {
    border-radius: 999px;
    min-height: 40px;
    background: var(--color-bg);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    margin-inline-start: auto;
    padding: 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    cursor: pointer;
}

.nav-toggle__bar {
    display: block;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
}

@media (max-width: 960px) {
    .nav-toggle {
        display: flex;
    }

    .site-nav {
        display: none;
        position: absolute;
        inset-inline: 0;
        top: 100%;
        flex-direction: column;
        align-items: stretch;
        padding: 12px var(--gutter) 20px;
        background: #fff;
        border-bottom: 1px solid var(--color-border);
        box-shadow: var(--shadow-lg);
    }

    .site-nav.is-open {
        display: flex;
    }

    .site-nav ul {
        flex-direction: column;
    }

    .site-search {
        width: 100%;
        margin: 0;
    }
}

/* ---------- Hero ---------- */

.hero {
    position: relative;
    overflow: hidden;
    padding: 64px 0 72px;
    color: #fff;
    background:
        radial-gradient(circle at 15% 20%, rgb(201 129 57 / 28%), transparent 40%),
        radial-gradient(circle at 85% 90%, rgb(100 160 161 / 30%), transparent 45%),
        linear-gradient(135deg, var(--color-primary-ink), var(--color-primary));
}

.hero__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
    gap: 48px;
    align-items: center;
}

.hero__title {
    margin: 0 0 16px;
    font-size: clamp(1.8rem, 4.2vw, 2.9rem);
    line-height: 1.5;
}

.hero__rotator {
    display: block;
    min-height: 1.5em;
    color: var(--color-accent-soft);
    transition: opacity 0.35s, transform 0.35s;
}

.hero__rotator.is-leaving {
    opacity: 0;
    transform: translateY(-8px);
}

.hero__text {
    max-width: 560px;
    margin: 0;
    font-size: 1.1rem;
    opacity: 0.9;
}

.hero__kicker {
    display: inline-block;
    margin: 0 0 12px;
    padding: 2px 14px;
    border-radius: 999px;
    background: rgb(255 255 255 / 14%);
    color: var(--color-accent-soft);
    font-weight: 700;
}

.quick-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.quick-link {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 18px;
    border-radius: var(--radius);
    background: #fff;
    color: var(--color-text);
    text-decoration: none;
    box-shadow: var(--shadow-lg);
    border-top: 4px solid var(--color-accent);
    transition: transform 0.15s;
}

.quick-link:hover {
    transform: translateY(-2px);
    color: var(--color-text);
}

.quick-link__title {
    color: var(--color-primary);
    font-size: 1.1rem;
    font-weight: 800;
}

.quick-link__text {
    color: var(--color-muted);
    font-size: 0.9rem;
    line-height: 1.6;
}

.quick-link--secondary {
    border-top-color: var(--color-sage);
}

/* Citizen-science block at the bottom: the hero recoloured so it reads as its own area */
.citizen-science {
    scroll-margin-top: 72px;
}

.hero--cs {
    background:
        radial-gradient(circle at 15% 85%, rgb(196 157 90 / 30%), transparent 40%),
        radial-gradient(circle at 80% 10%, rgb(100 160 161 / 40%), transparent 45%),
        linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
}

.section--tight {
    padding-block: 8px 48px;
}

@media (max-width: 420px) {
    .quick-links {
        grid-template-columns: 1fr;
    }
}

.finder {
    display: grid;
    gap: 14px;
    padding: 24px;
    border-radius: var(--radius);
    background: #fff;
    color: var(--color-text);
    box-shadow: var(--shadow-lg);
}

.finder__title {
    margin: 0;
    font-size: 1.2rem;
}

.finder__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

@media (max-width: 860px) {
    .hero {
        padding: 40px 0 48px;
    }

    .hero__inner {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

@media (max-width: 420px) {
    .finder__row {
        grid-template-columns: 1fr;
    }
}

/* ---------- Stats ---------- */

.stats {
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.stats__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 20px 8px;
    text-align: center;
}

.stat + .stat {
    border-inline-start: 1px solid var(--color-border);
}

.stat__value {
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1.3;
    color: var(--color-primary-dark);
}

.stat__label {
    color: var(--color-muted);
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    .stats__grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat:nth-child(3) {
        border-inline-start: 0;
    }

    .stat:nth-child(n + 3) {
        border-top: 1px solid var(--color-border);
    }
}

/* ---------- Sections ---------- */

.section {
    padding: 56px 0;
}

.section--tint {
    background: var(--color-tint);
}

.section__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 20px;
}

.section__head h2 {
    margin: 0;
    font-size: clamp(1.3rem, 2.5vw, 1.6rem);
}

.section__more {
    flex-shrink: 0;
    font-weight: 700;
    text-decoration: none;
}

.section__more::after {
    content: " ←";
}

.split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
}

@media (max-width: 860px) {
    .section {
        padding: 40px 0;
    }

    .split {
        grid-template-columns: 1fr;
        gap: 40px;
    }
}

/* ---------- Cards ---------- */

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}

.card {
    display: flex;
    flex-direction: column;
    overflow: hidden;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform 0.15s, box-shadow 0.15s;
}

.card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

.card__media {
    display: block;
    aspect-ratio: 16 / 9;
    background: var(--type-color, var(--color-primary));
}

.card__image {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.card__placeholder {
    display: flex;
    align-items: flex-end;
    height: 100%;
    padding: 16px;
    color: rgb(255 255 255 / 90%);
    font-weight: 800;
    font-size: 1.2rem;
    background:
        radial-gradient(circle at 85% 15%, rgb(255 255 255 / 22%) 0 18%, transparent 19%),
        radial-gradient(circle at 70% 60%, rgb(255 255 255 / 12%) 0 10%, transparent 11%),
        var(--type-color, var(--color-primary));
}

.card--projectpage { --type-color: var(--type-project); }
.card--articlepage { --type-color: var(--type-article); }
.card--eventpage { --type-color: var(--type-event); }
.card--coursepage { --type-color: var(--type-course); }
.card--protocolpage { --type-color: var(--type-protocol); }

.card__body {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
    padding: 18px 20px 20px;
}

.card__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 0;
    padding: 0;
    list-style: none;
    font-size: 0.8rem;
    font-weight: 600;
}

.card__meta li {
    padding: 1px 10px;
    border-radius: 999px;
    background: var(--color-tint);
    color: var(--color-primary-ink);
}

.card__title {
    margin: 0;
    font-size: 1.1rem;
}

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

.card__title a::after {
    /* Whole card is clickable via the title link */
    content: "";
    position: absolute;
    inset: 0;
}

.card {
    position: relative;
}

.card__summary {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.95rem;
}

/* ---------- Topics ---------- */

.topic-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.topic-grid a {
    display: block;
    padding: 8px 18px;
    border: 1px solid #c3dadb;
    border-radius: 999px;
    background: #fff;
    color: var(--color-primary-ink);
    font-weight: 600;
    text-decoration: none;
    transition: background-color 0.15s, color 0.15s;
}

.topic-grid a:hover {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: #fff;
}

.topics {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 12px 0 0;
    padding: 0;
    list-style: none;
}

.topics li {
    padding: 2px 12px;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: #fff;
    font-size: 0.85rem;
}

/* ---------- Promos ---------- */

.promos {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 20px;
}

.promo {
    padding: 28px;
    border-radius: var(--radius);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-top: 4px solid var(--color-sand);
}

.promo__title {
    margin: 0 0 8px;
    font-size: 1.25rem;
}

.promo p {
    margin: 0 0 12px;
    color: var(--color-muted);
}

.promo__link {
    font-weight: 700;
    text-decoration: none;
}

.promo__link::after {
    content: " ←";
}

/* ---------- Event & article lists ---------- */

.event-list,
.article-list {
    display: grid;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.event-item {
    display: flex;
    gap: 16px;
    align-items: center;
    padding: 14px;
    border-radius: var(--radius);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.event-item__date {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: var(--radius-sm);
    background: var(--type-event);
    color: #fff;
    line-height: 1.2;
}

.event-item__day {
    font-size: 1.4rem;
    font-weight: 800;
}

.event-item__month {
    font-size: 0.8rem;
}

.event-item__title {
    display: block;
    color: var(--color-text);
    font-weight: 700;
    text-decoration: none;
}

.event-item__meta,
.article-list__meta {
    color: var(--color-muted);
    font-size: 0.85rem;
}

.article-list li {
    padding: 14px 16px;
    border-radius: var(--radius);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.article-list__title {
    display: block;
    color: var(--color-text);
    font-weight: 700;
    text-decoration: none;
}

.article-list__summary {
    margin: 4px 0 0;
    color: var(--color-muted);
    font-size: 0.92rem;
}

.event-item__title:hover,
.article-list__title:hover {
    color: var(--color-primary);
}

/* ---------- Registry callout ---------- */

.registry-callout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: 40px;
    align-items: center;
    padding-block: 40px;
    padding-inline: 40px;
    border-radius: var(--radius);
    background:
        radial-gradient(circle at 90% 10%, rgb(196 157 90 / 22%), transparent 45%),
        linear-gradient(135deg, var(--color-primary-ink), var(--color-primary));
    color: #fff;
}

.registry-callout h2 {
    margin: 0 0 8px;
}

.registry-callout__copy p {
    margin: 0 0 20px;
    opacity: 0.85;
}

.registry-callout__list {
    display: grid;
    gap: 10px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.registry-callout__list li {
    display: grid;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    background: rgb(255 255 255 / 8%);
}

.registry-callout__list a {
    color: #fff;
    font-weight: 700;
    text-decoration: none;
}

.registry-callout__list a:hover {
    text-decoration: underline;
}

.registry-callout__number {
    justify-self: start;
    font-family: ui-monospace, Consolas, monospace;
    font-size: 0.8rem;
    color: var(--color-accent-soft);
}

.registry-callout__meta {
    font-size: 0.85rem;
    opacity: 0.75;
}

@media (max-width: 860px) {
    .container.registry-callout {
        grid-template-columns: 1fr;
        gap: 24px;
        padding: 28px 20px;
        border-radius: 0;
    }
}

/* ---------- Partners ---------- */

.partners {
    display: flex;
    flex-wrap: wrap;
    gap: 24px;
    align-items: center;
    margin: 0;
    padding: 0;
    list-style: none;
}

.partners img {
    display: block;
    max-height: 64px;
    width: auto;
    filter: grayscale(1);
    opacity: 0.75;
    transition: filter 0.15s, opacity 0.15s;
}

.partners a:hover img {
    filter: none;
    opacity: 1;
}

/* ---------- Page header & detail layout ---------- */

.page-header {
    padding: 40px 0 28px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
    margin: 8px 0;
    font-size: clamp(1.6rem, 3.5vw, 2.2rem);
}

.page-header p {
    max-width: 760px;
    margin: 0 0 4px;
    color: var(--color-muted);
}

.page-header .lead {
    color: var(--color-text);
}

.detail {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 320px;
    gap: 40px;
    padding-block: 40px;
}

.detail__main {
    min-width: 0;
}

.detail__main > :first-child {
    margin-top: 0;
}

.detail__cover {
    display: block;
    width: 100%;
    margin-bottom: 24px;
    border-radius: var(--radius);
}

.detail__aside {
    position: sticky;
    top: 88px;
    align-self: start;
    display: grid;
    gap: 16px;
    padding: 22px;
    border-radius: var(--radius);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.facts {
    margin: 0;
}

.facts dt {
    color: var(--color-muted);
    font-size: 0.8rem;
    font-weight: 700;
}

.facts dd {
    margin: 0 0 12px;
}

[dir="rtl"] .facts dd[dir="ltr"] {
    /* Latin values (registration numbers, codes) keep LTR order but align with the RTL column */
    text-align: right;
}

.facts dd:last-child {
    margin-bottom: 0;
}

.detail__aside .button {
    width: 100%;
}

.detail__aside p {
    margin: 0;
    overflow-wrap: anywhere;
}

@media (max-width: 860px) {
    .detail {
        grid-template-columns: 1fr;
        gap: 24px;
        padding-block: 24px;
    }

    .detail__aside {
        position: static;
        order: -1;
    }
}

/* ---------- Rich content blocks ---------- */

.block-heading {
    margin: 32px 0 8px;
    font-size: 1.35rem;
}

.block-image {
    margin: 24px 0;
}

.block-image img {
    display: block;
    border-radius: var(--radius);
}

.block-image figcaption {
    margin-top: 6px;
    color: var(--color-muted);
    font-size: 0.85rem;
}

.block-quote {
    margin: 24px 0;
    padding: 16px 20px;
    border-inline-start: 4px solid var(--color-accent);
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    font-size: 1.1rem;
}

.block-quote p {
    margin: 0;
}

.block-quote footer {
    margin-top: 8px;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.syllabus {
    display: grid;
    gap: 8px;
    padding-inline-start: 20px;
}

.people {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 12px;
}

.person {
    display: flex;
    gap: 12px;
    align-items: center;
    padding: 12px;
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.person__photo {
    border-radius: 50%;
}

/* Long text on general pages stays at a readable line length; grids use the full width. */
.prose > p,
.prose > ul:not(.team),
.prose > ol:not(.timeline) {
    max-width: 820px;
}

.back-link {
    font-weight: 700;
    text-decoration: none;
}

.info-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 16px;
    margin: 16px 0 24px;
}

.info-card {
    padding: 20px;
    border-radius: var(--radius);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-top: 4px solid var(--color-secondary);
}

.info-card:nth-child(3n + 2) {
    border-top-color: var(--color-sand);
}

.info-card:nth-child(3n) {
    border-top-color: var(--color-sage);
}

.info-card__title {
    margin: 0 0 8px;
    color: var(--color-primary);
    font-size: 1.05rem;
}

.info-card p {
    margin: 0;
    color: var(--color-muted);
}

.timeline {
    display: grid;
    gap: 0;
    max-width: 820px;
    margin: 16px 0 24px;
    padding: 0;
    list-style: none;
}

.timeline__item {
    position: relative;
    padding-block: 0 20px;
    padding-inline-start: 28px;
    border-inline-start: 2px solid var(--color-border);
}

.timeline__item:last-child {
    padding-bottom: 0;
    border-inline-start-color: transparent;
}

.timeline__item::before {
    content: "";
    position: absolute;
    inset-inline-start: -8px;
    top: 4px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--color-surface);
    border: 3px solid var(--color-accent);
}

.timeline__when {
    display: block;
    color: var(--color-primary);
    font-weight: 800;
}

.timeline__text {
    margin: 4px 0 0;
}

.team {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    align-items: start;
    gap: 20px;
    margin: 16px 0 32px;
    padding: 0;
    list-style: none;
}

.member {
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 24px 20px 20px;
    border-radius: var(--radius);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
    text-align: center;
}

.member__photo {
    display: grid;
    place-items: center;
    width: 128px;
    height: 128px;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--color-tint);
}

.member__photo--empty {
    background: var(--color-sage);
    color: #fff;
    font-size: 2.6rem;
    font-weight: 800;
}

.member__body {
    display: flex;
    flex: 1;
    flex-direction: column;
    align-items: center;
    width: 100%;
}

.member__name {
    margin: 14px 0 6px;
    font-size: 1.08rem;
}

.member__role {
    margin-bottom: 8px;
}

.member__position {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.9rem;
}

.member__country {
    margin: 4px 0 0;
    color: var(--color-secondary);
    font-size: 0.85rem;
    font-weight: 700;
}

.member__bio {
    width: 100%;
    margin-top: auto;
    padding-top: 12px;
    text-align: start;
}

.member__bio summary {
    padding: 6px 0;
    border-top: 1px solid var(--color-border);
    color: var(--color-primary);
    font-weight: 700;
    text-align: center;
    cursor: pointer;
}

.member__bio p {
    margin: 8px 0 0;
    font-size: 0.92rem;
    line-height: 1.9;
}

.subpages {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
    margin-top: 40px;
}

.subpage {
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 22px;
    border-radius: var(--radius);
    background: var(--color-primary);
    color: #fff;
    text-decoration: none;
    transition: background 0.15s;
}

.subpage:hover {
    background: var(--color-primary-dark);
}

.subpage__title {
    font-size: 1.15rem;
}

.subpage__intro {
    color: rgb(255 255 255 / 85%);
}

.subpage__more {
    color: var(--color-accent-soft);
    font-weight: 700;
}

.search-form {
    display: flex;
    gap: 8px;
    max-width: 640px;
    margin-top: 12px;
}

/* ---------- Listing: filters, results bar, empty state ---------- */

.section--listing {
    padding-top: 28px;
}

.filters {
    margin-bottom: 20px;
    border-radius: var(--radius);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.filters__toggle {
    display: none;
    padding: 12px 18px;
    font-weight: 700;
    cursor: pointer;
}

.filters__form {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
    gap: 12px 16px;
    align-items: end;
    padding: 18px;
}

.field--wide {
    grid-column: span 2;
}

.filters__actions {
    display: flex;
    align-items: center;
    gap: 16px;
    grid-column: span 2;
}

.filters__actions .button {
    white-space: nowrap;
}

.filters__clear {
    font-size: 0.9rem;
    white-space: nowrap;
}

.results-bar {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 16px;
    margin-bottom: 16px;
}

.results-bar__count {
    margin: 0;
    color: var(--color-muted);
    font-weight: 600;
}

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.chip {
    display: inline-flex;
    gap: 6px;
    align-items: center;
    padding: 2px 12px;
    border-radius: 999px;
    background: var(--color-primary);
    color: #fff;
    font-size: 0.85rem;
    text-decoration: none;
}

.chip:hover {
    background: var(--color-primary-dark);
    color: #fff;
}

.empty-state {
    padding: 48px 16px;
    border: 2px dashed var(--color-border);
    border-radius: var(--radius);
    text-align: center;
    color: var(--color-muted);
}

@media (max-width: 760px) {
    .filters__toggle {
        display: block;
    }

    .filters[open] .filters__toggle {
        border-bottom: 1px solid var(--color-border);
    }

    .filters__form {
        grid-template-columns: 1fr 1fr;
    }

    .field--wide,
    .filters__actions {
        grid-column: 1 / -1;
    }
}

.pagination {
    display: flex;
    gap: 16px;
    justify-content: center;
    align-items: center;
    margin-top: 32px;
}

/* ---------- Footer ---------- */

.site-footer {
    margin-top: 0;
    padding-top: 48px;
    background: var(--color-primary-ink);
    color: #c9dbd8;
    font-size: 0.95rem;
}

.site-footer__grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 32px;
    padding-bottom: 32px;
}

.site-footer__logo {
    display: block;
    width: auto;
    height: 56px;
    margin-bottom: 12px;
}

.site-footer__heading {
    margin: 0 0 8px;
    color: #fff;
    font-weight: 700;
}

.site-footer__links {
    display: grid;
    gap: 4px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.site-footer a {
    color: #c9dbd8;
    text-decoration: none;
}

.site-footer a:hover {
    color: #fff;
}

.site-footer__login {
    margin-inline-start: 12px;
    text-decoration: underline;
}

.site-footer__bottom {
    padding-block: 16px;
    border-top: 1px solid rgb(255 255 255 / 12%);
    font-size: 0.85rem;
    opacity: 0.75;
}

@media (max-width: 760px) {
    .site-footer__grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition: none !important;
    }
}

/* ---------- Accounts: header link, messages, auth pages, profile ---------- */

.account-link {
    flex-shrink: 0;
    padding: 8px 16px;
    border-radius: 999px;
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-weight: 700;
    text-decoration: none;
    white-space: nowrap;
}

.account-link:hover {
    background: var(--color-primary);
    color: #fff;
}

.site-messages {
    display: grid;
    gap: 8px;
    margin: 16px 0 0;
    padding: 0;
    list-style: none;
}

.site-message {
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    border-inline-start: 4px solid var(--color-primary);
    background: var(--color-surface);
    box-shadow: var(--shadow);
}

.site-message--success {
    border-inline-start-color: var(--color-secondary);
}

.site-message--error,
.site-message--warning {
    border-inline-start-color: var(--color-accent);
}

.button--outline {
    border: 1px solid var(--color-primary);
}

.small {
    font-size: 0.85rem;
}

.link-button {
    padding: 0;
    border: 0;
    background: none;
    color: var(--color-primary);
    font: inherit;
    text-decoration: underline;
    cursor: pointer;
}

.auth {
    display: flex;
    justify-content: center;
    padding: 48px var(--gutter);
}

.auth__card {
    width: 100%;
    max-width: 460px;
    padding: 32px 28px;
    border-radius: var(--radius);
    border-top: 4px solid var(--color-accent);
    background: var(--color-surface);
    box-shadow: var(--shadow-lg);
}

.auth__title {
    margin: 0 0 8px;
    font-size: 1.5rem;
}

.auth__lead {
    margin: 0 0 20px;
    color: var(--color-muted);
}

.auth__links {
    margin-top: 20px;
    text-align: center;
    color: var(--color-muted);
}

.form {
    display: grid;
    gap: 14px;
}

.form__row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form__aside {
    margin: -4px 0 0;
    font-size: 0.9rem;
}

.form input[type="email"],
.form input[type="password"],
.form input[type="text"],
.form select {
    width: 100%;
    min-height: 44px;
    padding: 8px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    font: inherit;
}

.form-field {
    min-width: 0;
}

.form-field--error input,
.form-field--error select {
    border-color: var(--color-accent);
}

.form-field__help {
    margin: 4px 0 0;
    color: var(--color-muted);
    font-size: 0.8rem;
}

.form-field__error,
.form-alert {
    margin: 4px 0 0;
    color: #8a4a12;
    font-size: 0.85rem;
}

.form-alert {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    background: #fbefe2;
}

.form-alert p {
    margin: 0;
}

.profile-head {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.profile-head__email {
    margin: 0;
}

[dir="rtl"] .profile-head__email {
    text-align: right;
}

.profile {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 40px;
    padding-block: 40px;
}

.profile__suggest-head {
    margin-top: 40px;
}

.profile__aside {
    align-self: start;
    display: grid;
    gap: 16px;
    padding: 22px;
    border-radius: var(--radius);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.profile-edit summary {
    cursor: pointer;
    font-weight: 700;
    color: var(--color-primary);
}

.profile-edit[open] summary {
    margin-bottom: 14px;
}

.interests {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4px 12px;
    margin: 0;
    padding: 0;
    border: 0;
}

.interests legend {
    margin-bottom: 6px;
}

.interests .check {
    font-size: 0.9rem;
}

.enrollments {
    display: grid;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.enrollment {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 16px 18px;
    border-radius: var(--radius);
    border-inline-start: 4px solid var(--type-course);
    background: var(--color-surface);
    box-shadow: var(--shadow);
}

.enrollment__title {
    color: var(--color-text);
    font-weight: 700;
    text-decoration: none;
}

.enrollment__meta {
    margin: 2px 0 0;
    color: var(--color-muted);
    font-size: 0.85rem;
}

.enrolled-note {
    margin: 0;
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    background: var(--color-tint);
    color: var(--color-primary-ink);
    font-weight: 700;
}

@media (max-width: 860px) {
    .profile {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .profile__aside {
        order: -1;
    }
}

@media (max-width: 420px) {
    .form__row,
    .interests {
        grid-template-columns: 1fr;
    }

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

@media (max-width: 960px) {
    .account-link {
        text-align: center;
    }
}

/* ---------- Protocol registration form ---------- */

.kicker-line {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 4px;
}

.badge--id {
    background: var(--color-primary);
    color: #fff;
    font-family: ui-monospace, Consolas, monospace;
}

.badge--status-submitted,
.badge--status-needs_revision {
    background: #fbefe2;
    color: #8a4a12;
}

.badge--status-approved {
    background: #e2f1ee;
    color: var(--color-primary-ink);
}

.badge--status-rejected {
    background: #f1e4e4;
    color: #7a2525;
}

.title-en {
    margin: 0 0 6px;
    color: var(--color-muted);
    text-align: left;
}

.ltr-block {
    text-align: left;
}

.protocol-form {
    max-width: 900px;
    padding-block: 32px 48px;
}

.stepper {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin: 0 0 20px;
    padding: 0;
    list-style: none;
}

.stepper__item > a,
.stepper__item > span {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 6px 8px;
    padding-inline-end: 14px;
    border-radius: 999px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    color: var(--color-muted);
    font-size: 0.9rem;
    text-decoration: none;
}

.stepper__num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    background: var(--color-tint);
    color: var(--color-primary-ink);
    font-weight: 800;
}

.stepper__item.is-done > a,
.stepper__item.is-done > span {
    color: var(--color-primary);
}

.stepper__item.is-done .stepper__num {
    background: var(--color-secondary);
    color: #fff;
}

.stepper__item.is-current > a,
.stepper__item.is-current > span {
    border-color: var(--color-primary);
    color: var(--color-primary-ink);
    font-weight: 700;
}

.stepper__item.is-current .stepper__num {
    background: var(--color-primary);
    color: #fff;
}

.protocol-form__card {
    padding: 28px;
    border-radius: var(--radius);
    border-top: 4px solid var(--color-accent);
    background: var(--color-surface);
    box-shadow: var(--shadow);
}

.protocol-form__title {
    margin: 0;
}

.protocol-form textarea {
    width: 100%;
    padding: 10px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font: inherit;
    line-height: 1.9;
    resize: vertical;
}

.protocol-form input[type="email"],
.protocol-form input[type="text"],
.protocol-form select {
    width: 100%;
    min-height: 44px;
    padding: 8px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    background: #fff;
    font: inherit;
}

.protocol-form__actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
}

.protocol-form__back {
    margin-inline-start: auto;
}

.choice-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    gap: 10px;
}

.choice-card {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 14px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: border-color 0.15s, background-color 0.15s;
}

.choice-card:hover {
    border-color: var(--color-secondary);
}

.choice-card:has(input:checked) {
    border-color: var(--color-primary);
    background: var(--color-tint);
    font-weight: 700;
}

.choice-card input {
    width: 18px;
    height: 18px;
    accent-color: var(--color-primary);
}

.readonly-value {
    margin: 0;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    background: var(--color-bg);
    line-height: 1.6;
}

.researcher-forms {
    display: grid;
    gap: 16px;
    counter-reset: researcher;
}

.researcher-form {
    display: grid;
    gap: 12px;
    margin: 0;
    padding: 18px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    border-inline-start: 4px solid var(--color-sage);
}

.researcher-form legend {
    padding: 0 6px;
    font-weight: 800;
    color: var(--color-primary);
}

.researcher-form:not([hidden]) legend::after {
    counter-increment: researcher;
    content: " " counter(researcher, persian);
}

.researcher-form__remove {
    justify-self: start;
}

.inline-radios {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 16px;
}

.inline-radios .field__label {
    margin: 0;
}

.review-section {
    padding-block: 16px;
    border-bottom: 1px solid var(--color-border);
}

.review-section:first-child {
    padding-top: 0;
}

.review-section__head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
}

.review-section h2 {
    margin: 0 0 8px;
    font-size: 1.15rem;
}

.review-section h3 {
    margin: 14px 0 4px;
    font-size: 1rem;
}

.review-list {
    display: grid;
    grid-template-columns: 200px minmax(0, 1fr);
    gap: 6px 16px;
    margin: 0;
}

.review-list dt {
    color: var(--color-muted);
    font-weight: 700;
    font-size: 0.9rem;
}

.review-list dd {
    margin: 0;
    overflow-wrap: anywhere;
}

.table-wrap {
    overflow-x: auto;
}

.review-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.review-table th,
.review-table td {
    padding: 8px 10px;
    border-bottom: 1px solid var(--color-border);
    text-align: start;
    vertical-align: top;
}

.review-table th {
    color: var(--color-muted);
}

.researchers {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 12px;
}

.researcher {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: var(--color-surface);
    border: 1px solid var(--color-border);
}

.researcher__name {
    margin: 0 0 4px;
    font-weight: 700;
}

.researcher__meta {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.88rem;
}

.registry-cta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px;
    margin-top: 12px;
}

.my-protocols {
    display: grid;
    gap: 12px;
    margin: 0;
    padding: 0;
    list-style: none;
}

.my-protocol {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 16px 18px;
    border-radius: var(--radius);
    border-inline-start: 4px solid var(--type-protocol);
    background: var(--color-surface);
    box-shadow: var(--shadow);
}

.my-protocol__title {
    color: var(--color-text);
    font-weight: 700;
    text-decoration: none;
}

.my-protocol__meta {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    margin: 4px 0 0;
    font-size: 0.85rem;
}

@media (max-width: 600px) {
    .protocol-form__card {
        padding: 18px;
    }

    .review-list {
        grid-template-columns: 1fr;
    }

    .review-list dd {
        margin-bottom: 8px;
    }

    .protocol-form__back {
        margin-inline-start: 0;
    }
}

/* ---------- Researcher membership ---------- */

.researcher-card {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 32px;
    padding: 20px 22px;
    border-radius: var(--radius);
    border-inline-start: 4px solid var(--color-sand);
    background: var(--color-surface);
    box-shadow: var(--shadow);
}

.researcher-card--active {
    border-inline-start-color: var(--color-secondary);
}

.researcher-card h2 {
    margin: 0 0 4px;
    font-size: 1.15rem;
}

.researcher-card p {
    margin: 0;
}

.membership-terms {
    margin-bottom: 16px;
    padding: 16px 20px;
    border-radius: var(--radius);
    background: var(--color-tint);
}

.membership-terms p {
    margin: 0 0 4px;
}

.membership-status {
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    background: #fbefe2;
}

.membership-status--active {
    background: #e2f1ee;
}

.membership-status--expired,
.membership-status--suspended {
    background: #f1e4e4;
}

.membership-status p {
    margin: 0;
}

.membership-status__label {
    color: var(--color-muted);
    font-size: 0.8rem;
    font-weight: 700;
}

.membership-status__value {
    font-size: 1.2rem;
    font-weight: 800;
}

.payment-box {
    display: grid;
    gap: 8px;
    padding: 14px 16px;
    border: 1px dashed var(--color-accent);
    border-radius: var(--radius-sm);
}

.payment-box p {
    margin: 0;
}

.payment-box .form input {
    direction: ltr;
}

/* ---------- Google sign-in ---------- */

.google-button {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 44px;
    padding: 8px 16px;
    border: 1px solid var(--color-border);
    border-radius: 999px;
    background: #fff;
    color: var(--color-text);
    font-weight: 700;
    text-decoration: none;
}

.google-button:hover {
    border-color: var(--color-primary);
    color: var(--color-text);
}

.auth__divider {
    display: flex;
    align-items: center;
    gap: 12px;
    margin: 16px 0;
    color: var(--color-muted);
    font-size: 0.85rem;
}

.auth__divider::before,
.auth__divider::after {
    content: "";
    flex: 1;
    border-top: 1px solid var(--color-border);
}


/* ---------- Direction-aware arrows (English site is left-to-right) ---------- */

.arrow-back::before {
    content: "→ ";
}

.arrow-forward::after {
    content: " ←";
}

[dir="ltr"] .arrow-back::before {
    content: "← ";
}

[dir="ltr"] .arrow-forward::after {
    content: " →";
}

[dir="ltr"] .section__more::after,
[dir="ltr"] .promo__link::after {
    content: " →";
}

.language-link {
    flex-shrink: 0;
    padding: 6px 12px;
    border-radius: 999px;
    color: var(--color-primary);
    font-weight: 800;
    text-decoration: none;
}

.language-link:hover {
    background: var(--color-tint);
}