/* ==========================================================================
   components.css
   --------------------------------------------------------------------------
   Reusable UI components shared across the site.
   Mobile-first defaults: desktop nav is hidden, hamburger is shown.
   The 768px swap to desktop layout lives in responsive.css.
   ========================================================================== */


/* ==========================================================================
   1. Site header
   ========================================================================== */

.site-header {
    position: sticky;
    top: 0;
    z-index: var(--z-header);
    background-color: var(--color-background);
    border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-height);
}

.site-header__brand {
    display: inline-flex;
    align-items: center;
    gap: 0.625rem;
    color: var(--color-text);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    letter-spacing: -0.01em;
}

.site-header__brand:hover {
    color: var(--color-text);
}

/* ----- Brand mark (project logo) ---------------------------------------- */

.site-brand__mark {
    display: block;
    width: 1.875rem;          /* 30px */
    height: 1.875rem;
    flex-shrink: 0;
    object-fit: contain;
}

.site-brand__text {
    font-size: 1.125rem;
    line-height: 1;
}


/* ==========================================================================
   2. Desktop navigation
   --------------------------------------------------------------------------
   Hidden by default (mobile-first). responsive.css reveals at >= 768px.
   ========================================================================== */

.site-nav {
    display: none;
}

.site-nav__list {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    gap: 2rem;
}

.site-nav__list li + li {
    margin-top: 0;
}

.site-nav__item {
    position: relative;
    display: flex;
    align-items: center;
}

.site-nav__link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--color-muted);
    font-size: 0.9375rem;
    line-height: 1;
    padding: 0.5rem 0;
    text-decoration: none;
    border-bottom: 2px solid transparent;
    background: transparent;
    transition: color var(--transition-fast), border-color var(--transition-fast);
}

a.site-nav__link:hover,
button.site-nav__link:hover {
    color: var(--color-text);
}

.site-nav__item.is-active > .site-nav__link {
    color: var(--color-text);
    border-bottom-color: var(--color-accent);
}

.site-nav__dropdown-toggle {
    cursor: pointer;
}

/* CSS chevron (no icon font / no SVG dependency) */
.site-nav__chevron {
    display: inline-block;
    width: 0.5rem;
    height: 0.5rem;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg) translate(-1px, -1px);
    transition: transform var(--transition-fast);
}


/* ==========================================================================
   3. Activities dropdown (desktop)
   ========================================================================== */

.site-nav__dropdown {
    position: absolute;
    top: calc(100% + 0.25rem);
    left: 0;
    min-width: 14rem;
    list-style: none;
    margin: 0;
    padding: 0.5rem 0;
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    box-shadow: var(--shadow-soft);

    opacity: 0;
    visibility: hidden;
    transform: translateY(-4px);
    transition: opacity var(--transition-fast),
                transform var(--transition-fast),
                visibility var(--transition-fast);
    z-index: var(--z-dropdown);
}

.site-nav__dropdown li + li {
    margin-top: 0;
}

.site-nav__item--has-dropdown:hover > .site-nav__dropdown,
.site-nav__item--has-dropdown:focus-within > .site-nav__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.site-nav__item--has-dropdown:hover > .site-nav__link .site-nav__chevron,
.site-nav__item--has-dropdown:focus-within > .site-nav__link .site-nav__chevron {
    transform: rotate(-135deg) translate(-1px, -1px);
}

.site-nav__dropdown-link {
    display: block;
    padding: 0.625rem 1rem;
    color: var(--color-text);
    font-size: 0.9375rem;
    line-height: 1.4;
    text-decoration: none;
    transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-nav__dropdown-link:hover {
    background-color: var(--color-surface);
    color: var(--color-text);
}


/* ==========================================================================
   4. Mobile menu toggle (hamburger)
   ========================================================================== */

.site-header__menu-toggle {
    width: 2.5rem;
    height: 2.5rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-small);
    color: var(--color-text);
    transition: background-color var(--transition-fast);
}

.site-header__menu-toggle:hover {
    background-color: var(--color-surface);
}

.site-header__menu-icon,
.site-header__menu-icon::before,
.site-header__menu-icon::after {
    display: block;
    width: 1.25rem;
    height: 2px;
    background-color: currentColor;
    border-radius: 2px;
    transition: transform var(--transition-fast),
                top var(--transition-fast),
                background-color var(--transition-fast);
}

.site-header__menu-icon {
    position: relative;
}

.site-header__menu-icon::before,
.site-header__menu-icon::after {
    content: "";
    position: absolute;
    left: 0;
}

.site-header__menu-icon::before { top: -0.4rem; }
.site-header__menu-icon::after  { top:  0.4rem; }

/* Hamburger -> X transformation when menu is open */
.site-header__menu-toggle[aria-expanded="true"] .site-header__menu-icon {
    background-color: transparent;
}
.site-header__menu-toggle[aria-expanded="true"] .site-header__menu-icon::before {
    top: 0;
    transform: rotate(45deg);
}
.site-header__menu-toggle[aria-expanded="true"] .site-header__menu-icon::after {
    top: 0;
    transform: rotate(-45deg);
}


/* ==========================================================================
   5. Mobile navigation (panel beneath header)
   ========================================================================== */

.mobile-nav {
    border-top: 1px solid var(--color-border);
    background-color: var(--color-background);
    z-index: var(--z-mobile-menu);
}

.mobile-nav[hidden] {
    display: none;
}

.mobile-nav__list {
    list-style: none;
    margin: 0;
    padding: 0.5rem var(--container-padding) 1rem;
    display: flex;
    flex-direction: column;
}

.mobile-nav__list li + li {
    margin-top: 0;
}

.mobile-nav__item {
    border-bottom: 1px solid var(--color-border);
}

.mobile-nav__item:last-child {
    border-bottom: 0;
}

.mobile-nav__link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: 0.875rem 0;
    color: var(--color-text);
    font-size: 1rem;
    line-height: 1.3;
    text-align: left;
    text-decoration: none;
    background: transparent;
}

.mobile-nav__link:hover {
    color: var(--color-text);
}

.mobile-nav__item.is-active > .mobile-nav__link {
    color: var(--color-accent);
}

.mobile-nav__chevron {
    display: inline-block;
    width: 0.5rem;
    height: 0.5rem;
    border-right: 1.5px solid currentColor;
    border-bottom: 1.5px solid currentColor;
    transform: rotate(45deg);
    transition: transform var(--transition-fast);
    margin-right: 0.25rem;
}

.mobile-nav__dropdown-toggle[aria-expanded="true"] .mobile-nav__chevron {
    transform: rotate(-135deg);
}

.mobile-nav__dropdown {
    list-style: none;
    margin: 0 0 0.75rem;
    padding: 0 0 0.25rem 1rem;
    display: flex;
    flex-direction: column;
}

.mobile-nav__dropdown[hidden] {
    display: none;
}

.mobile-nav__dropdown li + li {
    margin-top: 0;
}

.mobile-nav__sublink {
    display: block;
    padding: 0.5rem 0;
    color: var(--color-muted);
    font-size: 0.9375rem;
    line-height: 1.4;
    text-decoration: none;
}

.mobile-nav__sublink:hover {
    color: var(--color-text);
}

/* Lock body scroll while mobile menu is open */
body.is-mobile-menu-open {
    overflow: hidden;
}


/* ==========================================================================
   6. Site footer
   ========================================================================== */

.site-footer {
    margin-top: auto;
    background-color: var(--color-text);
    color: var(--color-background);
}

.site-footer__inner {
    padding-block: 4rem 2rem;
}

.site-footer a {
    color: var(--color-overlay-on-dark);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.site-footer a:hover {
    color: var(--color-background);
}

.site-footer__columns {
    display: grid;
    gap: 2.5rem;
    grid-template-columns: 1fr;
    margin-bottom: 3rem;
}

.site-footer__col p,
.site-footer__col ul {
    margin: 0;
}

.site-footer__col ul + p,
.site-footer__col p + p {
    margin-top: 0.75rem;
}

.site-footer__heading {
    color: var(--color-background);
    font-size: 1rem;
    font-weight: var(--font-weight-medium);
    margin: 0 0 1rem;
    letter-spacing: 0;
}

.site-footer__brand {
    color: var(--color-background);
    font-size: 1.25rem;
    font-weight: var(--font-weight-medium);
    letter-spacing: -0.01em;
    margin: 0 0 0.75rem;
}

.site-footer__lead {
    color: var(--color-overlay-on-dark);
    font-size: 0.9375rem;
    line-height: 1.6;
    margin: 0 0 0.5rem;
    max-width: 32rem;
}

.site-footer__meta {
    color: var(--color-overlay-on-dark-2);
    font-size: 0.8125rem;
    margin: 0;
}

.site-footer__links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 0.625rem;
}

.site-footer__links li + li {
    margin-top: 0;
}

.site-footer__links a,
.site-footer__contact a {
    font-size: 0.9375rem;
}

.site-footer__contact {
    margin: 0;
    font-size: 0.9375rem;
    color: var(--color-overlay-on-dark);
}


/* ----- EU funding block --------------------------------------------------- */

.site-footer__eu {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    padding: 2rem 0;
    border-top: 1px solid var(--color-overlay-on-dark-3);
    border-bottom: 1px solid var(--color-overlay-on-dark-3);
}

.site-footer__eu-logo {
    flex-shrink: 0;
    display: inline-flex;
    align-items: flex-start;
    justify-content: flex-start;
}

.site-footer__eu-logo-img {
    display: block;
    width: 180px;
    max-width: 100%;
    height: auto;
    flex-shrink: 0;
}

.site-footer__funding {
    margin: 0 0 0.5rem;
    color: var(--color-background);
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
}

.site-footer__disclaimer {
    margin: 0;
    color: var(--color-overlay-on-dark-2);
    font-size: 0.8125rem;
    line-height: 1.6;
    max-width: 56rem;
}


/* ----- Footer bottom row -------------------------------------------------- */

.site-footer__bottom {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding-top: 2rem;
    align-items: flex-start;
}

.site-footer__copyright {
    margin: 0;
    color: var(--color-overlay-on-dark-2);
    font-size: 0.8125rem;
}

.site-footer__legal {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.site-footer__legal li + li {
    margin-top: 0;
}

.site-footer__legal a {
    font-size: 0.8125rem;
}


/* ==========================================================================
   7. Buttons
   ========================================================================== */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
    line-height: 1.2;
    border-radius: var(--radius-medium);
    border: 1px solid transparent;
    background: transparent;
    color: var(--color-text);
    text-decoration: none;
    cursor: pointer;
    transition: background-color var(--transition-fast),
                color var(--transition-fast),
                border-color var(--transition-fast),
                opacity var(--transition-fast);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

.btn-primary:hover {
    background-color: #2c2c2c;
    border-color: #2c2c2c;
    color: var(--color-background);
}

.btn-secondary {
    background-color: transparent;
    color: var(--color-text);
    border-color: var(--color-border);
}

.btn-secondary:hover {
    background-color: var(--color-surface);
    color: var(--color-text);
}

.btn-text {
    background-color: transparent;
    color: var(--color-text);
    padding: 0.5rem 0.5rem;
    border-color: transparent;
}

.btn-text:hover {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 4px;
}


/* ==========================================================================
   8. Inline text link with arrow (".text-link")
   --------------------------------------------------------------------------
   Subtle accent link used inside content sections (Focus Areas, etc.).
   Reusable across pages.
   ========================================================================== */

.text-link {
    display: inline-flex;
    align-items: center;
    gap: 0.375rem;
    color: var(--color-accent);
    font-size: 0.9375rem;
    font-weight: var(--font-weight-medium);
    text-decoration: none;
    transition: color var(--transition-fast);
}

.text-link:hover {
    color: var(--color-accent);
    text-decoration: underline;
    text-underline-offset: 4px;
}

.text-link__arrow {
    display: inline-block;
    line-height: 1;
    transition: transform var(--transition-fast);
}

.text-link:hover .text-link__arrow {
    transform: translateX(2px);
}


/* ==========================================================================
   9. Fact block (accent left bar + label/value)
   --------------------------------------------------------------------------
   Used in "Project at a Glance" on the homepage and reusable elsewhere
   (project page, etc.).
   ========================================================================== */

.fact-block {
    border-left: 2px solid var(--color-accent);
    padding-left: 1.5rem;
}

.fact-block__label {
    margin: 0 0 0.25rem;
    color: var(--color-muted);
    font-size: 0.8125rem;
    line-height: 1.4;
}

.fact-block__value {
    margin: 0;
    color: var(--color-text);
    font-size: 1.1875rem;
    font-weight: var(--font-weight-medium);
    line-height: 1.45;
    letter-spacing: -0.005em;
}


/* ==========================================================================
   10. Partner item (logo placeholder + name + country)
   --------------------------------------------------------------------------
   Used in the homepage partners strip and on the dedicated Partners page.
   ========================================================================== */

.partner-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 0.75rem;
    height: 100%;
}

.partner-item__logo {
    aspect-ratio: 1 / 1;
    width: 100%;
    max-width: 9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem;
    background-color: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-medium);
    color: var(--color-muted);
    font-size: 0.75rem;
    transition: border-color var(--transition-fast);
}

.partner-item__logo img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    width: auto;
    height: auto;
    object-fit: contain;
}

.partner-item__logo:hover,
.partner-item:hover .partner-item__logo {
    border-color: rgba(122, 132, 80, 0.4);
}

.partner-item__name {
    /* Reserve room for up to two lines so the country line below
       lands at the same y-position in every grid cell, regardless
       of whether the name wraps. */
    min-height: calc(2 * 1.4em);
    margin: 0;
    color: var(--color-text);
    font-size: 0.875rem;
    font-weight: var(--font-weight-medium);
    line-height: 1.4;
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.partner-item__country {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.8125rem;
    line-height: 1.4;
}


/* ==========================================================================
   11. Accent block (accent left bar + title + description)
   --------------------------------------------------------------------------
   Sibling of .fact-block. Use when you want a *prominent title* on top
   followed by a muted description (project objectives, expected results,
   "how to use" steps, etc.). .fact-block is for label-on-top + value-below.
   ========================================================================== */

.accent-block {
    border-left: 2px solid var(--color-accent);
    padding-left: 1.5rem;
}

.accent-block__title {
    margin: 0 0 0.5rem;
    color: var(--color-text);
    font-size: 1.0625rem;
    font-weight: var(--font-weight-medium);
    line-height: 1.4;
    letter-spacing: -0.005em;
}

.accent-block__text {
    margin: 0;
    color: var(--color-muted);
    font-size: 1rem;
    line-height: 1.6;
}


/* ==========================================================================
   12. Image placeholder (intentional photo/visual stand-in)
   --------------------------------------------------------------------------
   Used as a content-area visual when the real image isn't ready yet.
   Drop it in any section. Replace the inner markup with an <img> later.
   No CSS background-image is used.
   ========================================================================== */

.image-placeholder {
    aspect-ratio: 4 / 3;
    width: 100%;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-large);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.75rem;
    padding: 1.5rem;
    text-align: center;
}

.image-placeholder__icon {
    width: 3rem;
    height: 3rem;
    color: rgba(30, 30, 30, 0.32);
}

.image-placeholder__label {
    margin: 0;
    color: var(--color-muted);
    font-size: 0.8125rem;
    letter-spacing: 0.02em;
}