/**
 * ==========================================================================
 * ICD GLOBAL FOOTER COMPONENT STYLES — v0.1-rc1
 * Lógica Editorial Aberta & Didática (Inspirada em designthinking.ideo.com)
 * Soberania Estrita da Bolha 2 (Paleta Sala de Conselho Luminosa + Tríade Tipográfica)
 * ==========================================================================
 */

:root {
    --icd-footer-marfim-bg:       hsl(46, 30%, 96%);
    --icd-footer-marfim-card:     hsl(46, 40%, 99%);
    --icd-footer-carvao-profundo: hsl(215, 28%, 10%);
    --icd-footer-carvao-texto:    hsl(215, 20%, 16%);
    --icd-footer-carvao-medio:    hsl(215, 14%, 38%);
    --icd-footer-carvao-suave:    hsl(215, 10%, 55%);
    --icd-footer-ouro-acento:     hsl(38, 70%, 48%);
    --icd-footer-ouro-hover:      hsl(38, 85%, 40%);
    --icd-footer-vinho-nobre:     hsl(350, 45%, 28%);
    --icd-footer-linha-hairline:  hsla(215, 15%, 16%, 0.10);
    --icd-footer-linha-destaque:  hsla(38, 70%, 48%, 0.40);
    
    --icd-footer-font-display:    'Quicksand', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --icd-footer-font-nav:        'Montserrat', Arial, Helvetica, sans-serif;
    --icd-footer-font-body:       'Lato', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    
    --icd-footer-pad-x:           clamp(24px, 4vw, 64px);
    --icd-footer-max-w:           1260px;
    --icd-footer-trans:           all 0.24s cubic-bezier(0.16, 1, 0.3, 1);
}

/* NORMALIZAÇÃO DO FOOTER GLOBAL */
.icd-global-footer {
    width: 100%;
    background-color: var(--icd-footer-marfim-bg);
    color: var(--icd-footer-carvao-texto);
    font-family: var(--icd-footer-font-body);
    position: relative;
    border-top: 1px solid var(--icd-footer-linha-hairline);
    box-sizing: border-box;
    overflow-x: hidden;
}

.icd-global-footer *,
.icd-global-footer *::before,
.icd-global-footer *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

.icd-footer-container {
    width: 100%;
    max-width: var(--icd-footer-max-w);
    margin: 0 auto;
    padding-left: var(--icd-footer-pad-x);
    padding-right: var(--icd-footer-pad-x);
}

/* ==========================================================================
   1. PRE-FOOTER DE CONTINUIDADE (EDITORIAL CALLOUT - INSPIRADO NA IDEO)
   ========================================================================== */
.icd-footer-pre {
    padding-top: clamp(48px, 6vw, 84px);
    padding-bottom: clamp(48px, 6vw, 84px);
    border-bottom: 1px solid var(--icd-footer-linha-hairline);
    background: linear-gradient(180deg, var(--icd-footer-marfim-card) 0%, var(--icd-footer-marfim-bg) 100%);
}

.icd-footer-pre-title {
    font-family: var(--icd-footer-font-display);
    font-size: clamp(1.85rem, 3.2vw, 2.75rem);
    font-weight: 600;
    color: var(--icd-footer-carvao-profundo);
    line-height: 1.18;
    letter-spacing: -0.02em;
    max-width: 860px;
    margin-bottom: clamp(32px, 4vw, 56px);
}

.icd-footer-pre-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(32px, 5vw, 64px);
}

.icd-footer-pre-col {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    border-top: 1px solid var(--icd-footer-linha-hairline);
    padding-top: 24px;
}

.icd-footer-pre-category {
    font-family: var(--icd-footer-font-nav);
    font-size: 0.72rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--icd-footer-ouro-acento);
    margin-bottom: 12px;
}

.icd-footer-pre-text {
    font-family: var(--icd-footer-font-body);
    font-size: clamp(1.02rem, 1.2vw, 1.15rem);
    line-height: 1.65;
    color: var(--icd-footer-carvao-medio);
    margin-bottom: 28px;
    flex-grow: 1;
}

.icd-footer-action-link {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-family: var(--icd-footer-font-nav);
    font-size: 0.88rem;
    font-weight: 600;
    letter-spacing: 1.2px;
    text-transform: uppercase;
    color: var(--icd-footer-carvao-profundo);
    text-decoration: none;
    padding: 12px 0;
    border-bottom: 2px solid var(--icd-footer-ouro-acento);
    width: fit-content;
    min-height: 44px;
    transition: var(--icd-footer-trans);
}

.icd-footer-action-link:link,
.icd-footer-action-link:visited {
    color: var(--icd-footer-carvao-profundo);
}

.icd-footer-action-link:hover,
.icd-footer-action-link:focus-visible {
    color: var(--icd-footer-ouro-hover);
    border-bottom-color: var(--icd-footer-ouro-hover);
    transform: translateX(4px);
    outline: none;
}

.icd-footer-action-link .icd-footer-arrow {
    width: 20px;
    height: 20px;
    stroke-width: 2;
    transition: transform 0.2s ease;
}

.icd-footer-action-link:hover .icd-footer-arrow,
.icd-footer-action-link:focus-visible .icd-footer-arrow {
    transform: translateX(4px);
}

/* ==========================================================================
   2. CORPO PRINCIPAL DO FOOTER (4 COLUNAS EDITORIAIS LIMPAS)
   ========================================================================== */
.icd-footer-main {
    padding-top: clamp(48px, 6vw, 72px);
    padding-bottom: clamp(36px, 4vw, 56px);
}

.icd-footer-grid {
    display: grid;
    grid-template-columns: 2.2fr 1.6fr 1.6fr 1.6fr;
    gap: clamp(24px, 3.5vw, 48px);
}

.icd-footer-col {
    display: flex;
    flex-direction: column;
}

/* COLUNA 1: MARCA & IDENTIDADE */
.icd-footer-brand-link {
    display: inline-block;
    margin-bottom: 20px;
    text-decoration: none;
    outline: none;
}

.icd-footer-brand-link:focus-visible {
    outline: 2px solid var(--icd-footer-ouro-acento);
    outline-offset: 4px;
}

.icd-footer-brand-logo {
    display: block;
    width: 150px;
    height: auto;
}

.icd-footer-brand-desc {
    font-family: var(--icd-footer-font-body);
    font-size: 0.92rem;
    line-height: 1.6;
    color: var(--icd-footer-carvao-medio);
    margin-bottom: 24px;
    max-width: 320px;
}

.icd-footer-copyright-desktop {
    font-family: var(--icd-footer-font-nav);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--icd-footer-carvao-suave);
    margin-top: auto;
    line-height: 1.5;
}

/* COLUNAS 2, 3 e 4: CABEÇALHOS E LISTAS */
.icd-footer-heading {
    font-family: var(--icd-footer-font-nav);
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--icd-footer-carvao-suave);
    margin-bottom: 20px;
}

.icd-footer-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.icd-footer-link-item a {
    font-family: var(--icd-footer-font-body);
    font-size: 0.95rem;
    color: var(--icd-footer-carvao-texto);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    min-height: 32px;
    transition: var(--icd-footer-trans);
}

.icd-footer-link-item a:link,
.icd-footer-link-item a:visited {
    color: var(--icd-footer-carvao-texto);
}

.icd-footer-link-item a:hover,
.icd-footer-link-item a:focus-visible {
    color: var(--icd-footer-ouro-acento);
    transform: translateX(3px);
    outline: none;
}

/* BADGES DISCRETAS PARA OS PORTAIS AFLUENTES */
.icd-footer-portal-tag {
    font-family: var(--icd-footer-font-nav);
    font-size: 0.62rem;
    font-weight: 600;
    letter-spacing: 1px;
    text-transform: uppercase;
    padding: 2px 6px;
    border-radius: 2px;
    background-color: hsla(215, 15%, 16%, 0.06);
    color: var(--icd-footer-carvao-medio);
}

.icd-footer-frase-governo {
    margin-top: 24px;
    padding-top: 16px;
    border-top: 1px solid var(--icd-footer-linha-hairline);
    font-family: var(--icd-footer-font-body);
    font-size: 0.85rem;
    font-style: italic;
    line-height: 1.5;
    color: var(--icd-footer-carvao-medio);
}

.icd-footer-copyright-mobile {
    display: none;
    margin-top: 40px;
    padding-top: 24px;
    border-top: 1px solid var(--icd-footer-linha-hairline);
    font-family: var(--icd-footer-font-nav);
    font-size: 0.72rem;
    font-weight: 500;
    color: var(--icd-footer-carvao-suave);
    text-align: center;
    line-height: 1.5;
}

/* ==========================================================================
   3. RESPONSIVIDADE RIGOROSA (1024px, 768px, 600px, 390px)
   ========================================================================== */
@media (max-width: 1024px) {
    .icd-footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px 32px;
    }
    
    .icd-footer-pre-grid {
        gap: 32px;
    }
}

@media (max-width: 768px) {
    .icd-footer-pre-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .icd-footer-grid {
        grid-template-columns: 1fr;
        gap: 36px;
    }
    
    .icd-footer-copyright-desktop {
        display: none;
    }
    
    .icd-footer-copyright-mobile {
        display: block;
    }
}

@media (max-width: 390px) {
    .icd-footer-action-link {
        font-size: 0.8rem;
        letter-spacing: 0.8px;
    }
    
    .icd-footer-pre-title {
        font-size: 1.6rem;
    }
}