/**
 * UFPel Theme Components - BEM Methodology
 * Organized component-based CSS following BEM naming conventions
 */

/* ==========================================================================
   HEADER COMPONENTS
   ========================================================================== */

/**
 * Main Header Block
 */
.header {
    position: relative;
    background: var(--cor-fundo-principal);
    border-bottom: 1px solid var(--cor-borda);
}

.header__accessibility-bar {
    background: var(--cor-fundo-secundario);
    padding: var(--espacamento-xs) 0;
    font-size: 0.875rem;
}

.header__accessibility-shortcuts {
    display: flex;
    justify-content: space-between;
    list-style: none;
    margin: 0;
    padding: 0;
}

.header__accessibility-link {
    color: var(--cor-link);
    text-decoration: none;
    padding: var(--espacamento-xs) var(--espacamento-sm);
    border-radius: 3px;
    transition: var(--transicao-padrao);
}

.header__accessibility-link:hover,
.header__accessibility-link:focus {
    background: var(--cor-link);
    color: var(--cor-fundo-principal);
}

.header__accessibility-key {
    background: var(--cor-link);
    color: var(--cor-fundo-principal);
    padding: 2px 6px;
    border-radius: 3px;
    font-size: 0.75rem;
    margin-left: var(--espacamento-xs);
}

/**
 * Government Bar Component
 */
.header__gov-bar {
    background: #7f7f7f;
    height: 20px;
    padding: 0 0 0 var(--espacamento-sm);
    display: block;
    box-sizing: border-box;
}

.header__gov-menu {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    align-items: center;
    height: 100%;
}

.header__gov-item {
    display: inline-flex;
    padding-right: var(--espacamento-sm);
    margin-right: var(--espacamento-sm);
    border-right: 1px solid #ededed;
}

.header__gov-item:last-child {
    border-right: none;
}

.header__gov-link {
    font-family: sans-serif;
    text-decoration: none;
    color: white;
    font-size: 0.75rem;
}

/**
 * UFPel Menu Component
 */
.ufpel-menu {
    background: var(--cor-menu);
    color: white;
}

.ufpel-menu__container {
    max-width: var(--largura-maxima);
    margin: 0 auto;
    padding: 0 var(--espacamento-md);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.ufpel-menu__toggle {
    display: none;
    background: none;
    border: none;
    color: white;
    font-size: 1.2rem;
    cursor: pointer;
    padding: var(--espacamento-sm);
}

.ufpel-menu__list {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
    align-items: center;
}

.ufpel-menu__item {
    margin: 0 var(--espacamento-sm);
}

.ufpel-menu__link {
    color: white;
    text-decoration: none;
    padding: var(--espacamento-sm) var(--espacamento-md);
    display: block;
    transition: var(--transicao-padrao);
    border-radius: 3px;
}

.ufpel-menu__link:hover,
.ufpel-menu__link:focus {
    background: rgba(255, 255, 255, 0.1);
}

/**
 * Header Content Component
 */
.header__content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--espacamento-lg) 0;
    min-height: 80px;
}

.header__title-container {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.header__origin-unit {
    font-size: var(--origem-font-size, 0.875rem);
    color: var(--cor-menu);
    font-weight: 500;
    margin-bottom: var(--espacamento-xs);
}

.header__site-title {
    font-family: var(--fonte-titulo);
    font-size: var(--title-font-size, 1.5rem);
    font-weight: 700;
    color: var(--cor-texto);
    line-height: 1.2;
    margin-bottom: var(--espacamento-xs);
}

.header__site-description {
    font-size: 0.875rem;
    color: var(--cor-menu);
    line-height: 1.4;
}

.header__logo {
    width: 80px;
    height: 80px;
    background: url('../imagens/escudo-ufpel.png') no-repeat center;
    background-size: contain;
    margin: 0 var(--espacamento-lg);
    flex-shrink: 0;
}

.header__search {
    flex-shrink: 0;
    min-width: 200px;
}

/* ==========================================================================
   NAVIGATION COMPONENTS
   ========================================================================== */

/**
 * Main Navigation Block
 */
.main-nav {
    background: var(--cor-menu);
    position: relative;
    z-index: 100;
}

.main-nav__container {
    max-width: var(--largura-maxima);
    margin: 0 auto;
    padding: 0 var(--espacamento-md);
}

.main-nav__toggle {
    display: none;
    background: var(--cor-menu);
    border: none;
    color: white;
    padding: var(--espacamento-md);
    cursor: pointer;
    width: 100%;
    text-align: left;
    font-size: 1rem;
}

.main-nav__menu {
    display: flex;
    list-style: none;
    margin: 0;
    padding: 0;
}

.main-nav__item {
    position: relative;
}

.main-nav__link {
    display: block;
    color: white;
    text-decoration: none;
    padding: var(--espacamento-md) var(--espacamento-lg);
    transition: var(--transicao-padrao);
    border-bottom: 3px solid transparent;
}

.main-nav__link:hover,
.main-nav__link:focus,
.main-nav__item--current .main-nav__link {
    background: var(--cor-menu-hover);
    border-bottom-color: var(--theme-primary-color, #172b54);
}

.main-nav__submenu {
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--cor-menu-hover);
    min-width: 200px;
    box-shadow: var(--sombra-media);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transicao-padrao);
    list-style: none;
    margin: 0;
    padding: 0;
    z-index: 1000;
}

.main-nav__item:hover .main-nav__submenu,
.main-nav__item:focus-within .main-nav__submenu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.main-nav__submenu-link {
    display: block;
    color: white;
    text-decoration: none;
    padding: var(--espacamento-sm) var(--espacamento-lg);
    transition: var(--transicao-padrao);
    border-left: 3px solid transparent;
}

.main-nav__submenu-link:hover,
.main-nav__submenu-link:focus {
    background: rgba(255, 255, 255, 0.1);
    border-left-color: var(--theme-primary-color, #172b54);
}

/* ==========================================================================
   SEARCH COMPONENT
   ========================================================================== */

.search-form {
    position: relative;
    display: flex;
    max-width: 300px;
}

.search-form__input {
    flex: 1;
    padding: var(--espacamento-sm) var(--espacamento-md);
    border: 1px solid var(--cor-borda);
    border-radius: 4px 0 0 4px;
    font-size: 0.875rem;
    outline: none;
    transition: var(--transicao-padrao);
}

.search-form__input:focus {
    border-color: var(--theme-primary-color, #172b54);
    box-shadow: 0 0 0 2px rgba(23, 43, 84, 0.1);
}

.search-form__button {
    background: var(--theme-primary-color, #172b54);
    border: 1px solid var(--theme-primary-color, #172b54);
    color: white;
    padding: var(--espacamento-sm) var(--espacamento-md);
    border-radius: 0 4px 4px 0;
    cursor: pointer;
    transition: var(--transicao-padrao);
    display: flex;
    align-items: center;
    justify-content: center;
}

.search-form__button:hover,
.search-form__button:focus {
    background: var(--cor-menu-hover);
    border-color: var(--cor-menu-hover);
}

.search-form__icon {
    width: 16px;
    height: 16px;
}

/* ==========================================================================
   FOOTER COMPONENTS
   ========================================================================== */

.footer {
    background: var(--cor-fundo-secundario);
    border-top: 1px solid var(--cor-borda);
    margin-top: auto;
}

.footer__content {
    max-width: var(--largura-maxima);
    margin: 0 auto;
    padding: var(--espacamento-xl) var(--espacamento-md);
}

.footer__columns {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: var(--espacamento-xl);
    margin-bottom: var(--espacamento-xl);
}

.footer__location {
    grid-column: 1;
}

.footer__location-title {
    font-weight: 700;
    margin-bottom: var(--espacamento-md);
    color: var(--cor-texto);
}

.footer__location-address {
    line-height: 1.6;
    color: var(--cor-menu);
    margin-bottom: var(--espacamento-sm);
}

.footer__location-link {
    color: var(--theme-primary-color, #172b54);
    text-decoration: none;
    font-weight: 500;
}

.footer__location-link:hover {
    text-decoration: underline;
}

.footer__credits {
    border-top: 1px solid var(--cor-borda);
    padding-top: var(--espacamento-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--espacamento-md);
}

.footer__social-media {
    display: flex;
    gap: var(--espacamento-sm);
}

.footer__social-link {
    color: var(--cor-menu);
    font-size: 1.2rem;
    transition: var(--transicao-padrao);
}

.footer__social-link:hover {
    color: var(--theme-primary-color, #172b54);
}

.footer__copyright,
.footer__powered-by,
.footer__credits-team {
    font-size: 0.875rem;
    color: var(--cor-menu);
}

.footer__credits-link {
    color: var(--theme-primary-color, #172b54);
    text-decoration: none;
}

.footer__credits-link:hover {
    text-decoration: underline;
}

/* ==========================================================================
   RESPONSIVE DESIGN
   ========================================================================== */

@media (max-width: 1000px) {
    .header__content {
        flex-direction: column;
        text-align: center;
        gap: var(--espacamento-md);
    }
    
    .header__logo {
        order: -1;
        margin: 0 0 var(--espacamento-md) 0;
    }
    
    .footer__columns {
        grid-template-columns: 1fr;
        gap: var(--espacamento-lg);
    }
    
    .footer__credits {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    .ufpel-menu__toggle {
        display: block;
    }
    
    .ufpel-menu__list {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--cor-menu);
        box-shadow: var(--sombra-media);
    }
    
    .ufpel-menu__list--open {
        display: flex;
    }
    
    .main-nav__toggle {
        display: block;
    }
    
    .main-nav__menu {
        display: none;
        flex-direction: column;
    }
    
    .main-nav__menu--open {
        display: flex;
    }
    
    .main-nav__submenu {
        position: static;
        opacity: 1;
        visibility: visible;
        transform: none;
        box-shadow: none;
        background: rgba(0, 0, 0, 0.1);
    }
    
    .header__search {
        min-width: auto;
        width: 100%;
    }
    
    .search-form {
        max-width: none;
    }
}