/* ==========================================================================
   PORTAL DE SUPORTE IFCE CAMPUS TIANGUÁ - APP-FIRST MOBILE & DUAL UI
   Padrão Oficial de Interface - IFCE Campus Tianguá
   ========================================================================== */

:root {
    --ifce-green: #155e21;
    --ifce-green-dark: #114e1a;
    --ifce-light-green: #e8f5e9;
    --ifce-emerald: #10b981;
    --ifce-emerald-light: #d1fae5;
    --text-dark: #0f172a;
    --text-body: #334155;
    --text-muted: #64748b;
    --body-bg: #f8fafc;
    --card-bg: #ffffff;
    --border-color: #e2e8f0;
    --border-light: #f1f5f9;
    --card-radius: 14px;
    --touch-min: 44px;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    background-color: var(--body-bg);
}

body {
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--text-body);
    background-color: var(--body-bg);
    line-height: 1.5;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    -webkit-font-smoothing: antialiased;
}

/* --------------------------------------------------------------------------
   CABEÇALHO PREMIUM APP-FIRST (.header-premium-ifce)
   Superfície única integrada, 56px no mobile, com linha de acento institucional
   -------------------------------------------------------------------------- */
.header-premium-ifce {
    background: linear-gradient(135deg, #155e21 0%, #0d3d14 100%);
    color: #ffffff;
    position: sticky;
    top: 0;
    z-index: 1000;
    border-bottom: 2.5px solid transparent;
    border-image: linear-gradient(90deg, #155e21 0%, #10b981 50%, rgba(16, 185, 129, 0.2) 100%) 1;
    box-shadow: 0 4px 16px -2px rgba(0, 0, 0, 0.12);
}

.header-container {
    max-width: 900px;
    margin: 0 auto;
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 56px;
}

/* Identidade visual */
.header-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: #ffffff;
    min-width: 0;
}

.header-logo {
    height: 34px;
    width: auto;
    object-fit: contain;
    filter: drop-shadow(0 1px 2px rgba(0, 0, 0, 0.2));
}

.header-titles {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.header-eyebrow {
    font-size: 0.68rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: #a7f3d0;
    display: flex;
    align-items: center;
    gap: 5px;
    line-height: 1;
}

.eyebrow-dot {
    width: 6px;
    height: 6px;
    border-radius: 999px;
    background-color: #10b981;
    display: inline-block;
}

.header-title {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    line-height: 1.25;
}

/* Botão voltar circular de 44x44px (touch target obrigatório) */
.btn-header-back {
    width: 44px;
    height: 44px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.15);
    color: #ffffff;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    font-size: 1.1rem;
    transition: background 0.15s ease, transform 0.1s ease;
    flex-shrink: 0;
}

.btn-header-back:active {
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0.94);
}

.btn-header-action {
    display: flex;
    align-items: center;
    gap: 6px;
    color: #ffffff;
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.15);
    min-height: 44px;
}

/* --------------------------------------------------------------------------
   ÁREA PRINCIPAL / CONTAINER APP-FIRST
   -------------------------------------------------------------------------- */
.app-main {
    flex: 1;
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 16px 14px 80px 14px;
}

/* --------------------------------------------------------------------------
   HERO & BUSCA INSTANTÂNEA
   -------------------------------------------------------------------------- */
.search-hero {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 18px 16px;
    margin-bottom: 20px;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.03);
}

.search-hero-title {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
    letter-spacing: -0.01em;
}

.search-hero-subtitle {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.search-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 14px;
    color: var(--text-muted);
    font-size: 1rem;
    pointer-events: none;
}

.search-input {
    width: 100%;
    min-height: 48px;
    padding: 12px 42px 12px 42px;
    font-size: 1rem;
    border: 1.5px solid var(--border-color);
    border-radius: 999px;
    background: #f8fafc;
    color: var(--text-dark);
    outline: none;
    transition: all 0.2s ease;
}

.search-input:focus {
    background: #ffffff;
    border-color: var(--ifce-green);
    box-shadow: 0 0 0 3px rgba(21, 94, 33, 0.15);
}

.search-clear-btn {
    position: absolute;
    right: 12px;
    width: 32px;
    height: 32px;
    border-radius: 999px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    display: none;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}

.search-clear-btn.visible {
    display: flex;
}

/* --------------------------------------------------------------------------
   GRADE 2x2 DE CATEGORIAS (APP MOBILE-FIRST)
   Alvos táteis ≥ 44px, ícones verdes e rótulos diretos
   -------------------------------------------------------------------------- */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
    padding: 0 2px;
}

.section-title {
    font-size: 0.95rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-dark);
    display: flex;
    align-items: center;
    gap: 8px;
}

.categories-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
    margin-bottom: 24px;
}

@media (min-width: 600px) {
    .categories-grid {
        grid-template-columns: repeat(4, 1fr);
        gap: 14px;
    }
}

.category-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 16px 12px;
    text-decoration: none;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    min-height: 110px;
    justify-content: center;
    gap: 8px;
    transition: all 0.15s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.category-card:active {
    background: var(--ifce-light-green);
    border-color: var(--ifce-green);
    transform: scale(0.97);
}

.category-icon-bubble {
    width: 44px;
    height: 44px;
    border-radius: 999px;
    background: var(--ifce-light-green);
    color: var(--ifce-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.category-name {
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text-dark);
    line-height: 1.2;
}

.category-count {
    font-size: 0.72rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   LISTA DE ARTIGOS / CARDS DE 1 TOQUE
   -------------------------------------------------------------------------- */
.topics-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.topic-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 14px 16px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 14px;
    min-height: var(--touch-min);
    transition: all 0.15s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.02);
}

.topic-card:active {
    background: #f1f5f9;
    border-color: var(--ifce-emerald);
    transform: scale(0.98);
}

.topic-badge-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--ifce-light-green);
    color: var(--ifce-green);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.topic-info {
    flex: 1;
    min-width: 0;
}

.topic-title {
    font-size: 0.96rem;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.35;
    margin-bottom: 2px;
}

.topic-meta {
    font-size: 0.76rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.topic-tag {
    background: #f1f5f9;
    padding: 2px 6px;
    border-radius: 4px;
    font-weight: 600;
    color: #475569;
}

.topic-arrow {
    color: var(--ifce-green);
    font-size: 1.2rem;
    font-weight: 700;
    flex-shrink: 0;
}

/* --------------------------------------------------------------------------
   DETALHE DO ARTIGO - PASSO A PASSO GUIADO ESTILO APP
   -------------------------------------------------------------------------- */
.article-header {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 20px 18px;
    margin-bottom: 16px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.02);
}

.article-category-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--ifce-green);
    background: var(--ifce-light-green);
    padding: 4px 10px;
    border-radius: 999px;
    margin-bottom: 10px;
}

.article-title {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--text-dark);
    letter-spacing: -0.015em;
    line-height: 1.3;
    margin-bottom: 8px;
}

.article-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Passos do tutorial */
.steps-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 24px;
}

.step-card {
    background: #ffffff;
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    padding: 16px;
    display: flex;
    gap: 14px;
    align-items: flex-start;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.02);
}

.step-number {
    width: 32px;
    height: 32px;
    border-radius: 999px;
    background: var(--ifce-green);
    color: #ffffff;
    font-weight: 700;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 2px;
}

.step-content {
    flex: 1;
    min-width: 0;
}

.step-text {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-dark);
    line-height: 1.45;
    margin-bottom: 6px;
}

.step-dica {
    font-size: 0.88rem;
    color: #475569;
    background: #f8fafc;
    border-left: 3px solid #94a3b8;
    padding: 8px 12px;
    border-radius: 0 8px 8px 0;
    margin: 8px 0;
    line-height: 1.4;
}

.step-image-wrap {
    margin: 12px 0 6px 0;
    border-radius: 10px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background: #000000;
}

.step-image {
    width: 100%;
    height: auto;
    display: block;
    cursor: zoom-in;
}

.step-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.btn-step-action {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--ifce-green);
    color: #ffffff;
    font-weight: 600;
    font-size: 0.9rem;
    padding: 10px 16px;
    border-radius: 8px;
    text-decoration: none;
    min-height: 44px;
    transition: background 0.15s ease;
}

.btn-step-action:active {
    background: var(--ifce-green-dark);
}

.btn-step-copy {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #f1f5f9;
    color: var(--text-dark);
    font-weight: 600;
    font-size: 0.88rem;
    padding: 8px 14px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    min-height: 44px;
    cursor: pointer;
}

.btn-step-copy:active {
    background: #e2e8f0;
}

/* Card de encerramento / ajuda adicional */
.help-card-bottom {
    background: #ffffff;
    border: 1.5px solid var(--ifce-emerald-light);
    border-radius: var(--card-radius);
    padding: 18px 16px;
    text-align: center;
    margin-top: 16px;
}

.help-card-title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 6px;
}

.help-card-text {
    font-size: 0.88rem;
    color: var(--text-muted);
    margin-bottom: 14px;
}

.help-card-actions {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

@media (min-width: 500px) {
    .help-card-actions {
        flex-direction: row;
        justify-content: center;
    }
}

.btn-suap-chamado {
    background: #1e293b;
    color: #ffffff;
    font-weight: 600;
    padding: 12px 18px;
    border-radius: 8px;
    text-decoration: none;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-chat-assistente {
    background: var(--ifce-green);
    color: #ffffff;
    font-weight: 600;
    padding: 12px 18px;
    border-radius: 8px;
    border: none;
    min-height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    cursor: pointer;
}

/* --------------------------------------------------------------------------
   RODAPÉ APP MOBILE
   -------------------------------------------------------------------------- */
.app-footer {
    text-align: center;
    padding: 24px 16px 40px 16px;
    font-size: 0.78rem;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
    background: #ffffff;
    margin-top: auto;
}

.app-footer-brand {
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 4px;
}

/* Toast de confirmação tátil */
.toast-msg {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: #1e293b;
    color: #ffffff;
    padding: 12px 20px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.88rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
    z-index: 999999;
    opacity: 0;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    pointer-events: none;
}

.toast-msg.show {
    transform: translateX(-50%) translateY(0);
    opacity: 1;
}

/* Lightbox modal touch */
.lightbox-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.92);
    z-index: 1000000;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 16px;
}

.lightbox-modal.open {
    display: flex;
}

.lightbox-img {
    max-width: 100%;
    max-height: 90vh;
    object-fit: contain;
    border-radius: 8px;
}

.lightbox-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 44px;
    height: 44px;
    background: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    border: none;
    border-radius: 999px;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
}