/* ============================================
   SEMINÁRIO FRONTEND - CSS COMPLETO
   ============================================ */

/* ----- VARIÁVEIS E RESET ----- */
:root {
    --cor-primaria: #2A9D8F;
    --cor-secundaria: #264653;
    --cor-destaque: #E76F51;
    --cor-texto: #2c3e50;
    --cor-texto-claro: #7f8c8d;
    --cor-fundo: #f8f9fa;
    --cor-branco: #ffffff;
    --cor-borda: #e9ecef;
    --cor-sucesso: #27ae60;
    --sombra-leve: 0 2px 8px rgba(0,0,0,0.08);
    --sombra-media: 0 4px 16px rgba(0,0,0,0.12);
    --sombra-forte: 0 8px 24px rgba(0,0,0,0.15);
    --transicao: all 0.3s ease;
    --border-radius: 12px;
    --espacamento: 2rem;
}

* {
    box-sizing: border-box;
}

/* ----- MENSAGENS ----- */
.seminario-message {
    padding: 1.5rem;
    border-radius: var(--border-radius);
    margin-bottom: 2rem;
    font-size: 1rem;
    line-height: 1.6;
    animation: slideDown 0.4s ease;
}

.seminario-message.success {
    background: linear-gradient(135deg, #d5f4e6 0%, #c8e6d4 100%);
    border-left: 4px solid var(--cor-sucesso);
    color: #27ae60;
}

.seminario-message.error {
    background: linear-gradient(135deg, #ffe8e6 0%, #ffd4d1 100%);
    border-left: 4px solid var(--cor-destaque);
    color: #c0392b;
}

.seminario-empty {
    text-align: center;
    padding: 4rem 2rem;
    background: var(--cor-fundo);
    border-radius: var(--border-radius);
    color: var(--cor-texto-claro);
    font-size: 1.125rem;
}

/* ----- FORMULÁRIO DE INSCRIÇÃO ----- */
.seminario-inscricao-form {
    max-width: 900px;
    margin: 0 auto;
    padding: 2.5rem;
    background: var(--cor-branco);
    border-radius: var(--border-radius);
    box-shadow: var(--sombra-media);
}

.seminario-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group label {
    font-weight: 600;
    color: var(--cor-secundaria);
    font-size: 0.95rem;
    letter-spacing: 0.3px;
}

.form-group input,
.form-group textarea,
.form-group select {
    padding: 0.875rem 1rem;
    border: 2px solid var(--cor-borda);
    border-radius: 8px;
    font-size: 1rem;
    transition: var(--transicao);
    background: var(--cor-branco);
    font-family: inherit;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--cor-primaria);
    box-shadow: 0 0 0 3px rgba(42, 157, 143, 0.1);
}

.form-group textarea {
    min-height: 120px;
    resize: vertical;
}

/* Checkboxes de Painéis */
.paineis-checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--cor-fundo);
    border-radius: 8px;
    max-height: 400px;
    overflow-y: auto;
}

.checkbox-label {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    padding: 1rem;
    background: var(--cor-branco);
    border: 2px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transicao);
}

.checkbox-label:hover {
    border-color: var(--cor-primaria);
    box-shadow: var(--sombra-leve);
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-top: 2px;
    cursor: pointer;
    accent-color: var(--cor-primaria);
}

.checkbox-label span {
    flex: 1;
    font-weight: 500;
    color: var(--cor-texto);
}

.checkbox-label small {
    display: block;
    color: var(--cor-texto-claro);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

/* Botões */
.seminario-btn {
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transicao);
    text-decoration: none;
    display: inline-block;
    text-align: center;
    letter-spacing: 0.5px;
}

.seminario-btn-primary {
    background: linear-gradient(135deg, var(--cor-primaria) 0%, #229086 100%);
    color: var(--cor-branco);
    box-shadow: var(--sombra-leve);
}

.seminario-btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--sombra-media);
}

.form-actions {
    margin-top: 1rem;
    display: flex;
    justify-content: center;
}

/* ----- GRADE DE PAINÉIS ----- */
.seminario-paineis-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2rem;
    padding: 1rem 0;
}

.seminario-painel-card {
    background: var(--cor-branco);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--sombra-leve);
    transition: var(--transicao);
    display: flex;
    flex-direction: column;
}

.seminario-painel-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--sombra-forte);
}

.painel-image {
    width: 100%;
    height: 200px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--cor-primaria) 0%, var(--cor-secundaria) 100%);
}

.painel-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transicao);
}

.seminario-painel-card:hover .painel-image img {
    transform: scale(1.05);
}

.painel-content {
    padding: 1.5rem;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.painel-content h3 {
    font-size: 1.25rem;
    color: var(--cor-secundaria);
    margin: 0;
    line-height: 1.4;
    font-weight: 700;
}

.painel-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    padding-top: 0.5rem;
    border-top: 2px solid var(--cor-borda);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--cor-texto-claro);
    font-size: 0.9rem;
}

.painel-description {
    color: var(--cor-texto);
    line-height: 1.6;
    margin: 0;
}

.painel-moderador {
    margin: 0;
    padding-top: 0.75rem;
    border-top: 1px solid var(--cor-borda);
    font-size: 0.9rem;
    color: var(--cor-texto-claro);
}

.painel-moderador strong {
    color: var(--cor-secundaria);
}

/* ----- CONFERENCISTAS ----- */
.seminario-conferencistas-grid {
    display: grid;
    gap: 2rem;
    padding: 1rem 0;
}

.seminario-conferencistas-grid.colunas-2 {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.seminario-conferencistas-grid.colunas-3 {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.seminario-conferencistas-grid.colunas-4 {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

.seminario-conferencista-card {
    background: var(--cor-branco);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--sombra-leve);
    transition: var(--transicao);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
}

.seminario-conferencista-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--sombra-media);
}

.conferencista-photo {
    width: 140px;
    height: 140px;
    border-radius: 50%;
    overflow: hidden;
    border: 4px solid var(--cor-primaria);
    box-shadow: var(--sombra-leve);
}

.conferencista-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.photo-placeholder {
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, var(--cor-primaria) 0%, var(--cor-secundaria) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 700;
    color: var(--cor-branco);
}

.conferencista-info h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.25rem;
    color: var(--cor-secundaria);
    font-weight: 700;
}

.conferencista-cargo {
    margin: 0;
    color: var(--cor-primaria);
    font-weight: 600;
    font-size: 1rem;
}

.conferencista-instituicao,
.conferencista-pais,
.conferencista-area {
    margin: 0.25rem 0;
    color: var(--cor-texto-claro);
    font-size: 0.9rem;
}

/* ----- OBSERVADORES ----- */
.seminario-observadores-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
    padding: 1rem 0;
}

.seminario-observador-card {
    background: var(--cor-branco);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--sombra-leve);
    transition: var(--transicao);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    border-top: 4px solid var(--cor-destaque);
}

.seminario-observador-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--sombra-media);
}

.observador-photo {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--cor-destaque);
}

.observador-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.observador-info h3 {
    margin: 0 0 0.5rem 0;
    font-size: 1.125rem;
    color: var(--cor-secundaria);
    font-weight: 700;
}

.observador-cargo {
    margin: 0;
    color: var(--cor-destaque);
    font-weight: 600;
    font-size: 0.95rem;
}

.observador-organizacao,
.observador-pais {
    margin: 0.25rem 0;
    color: var(--cor-texto-claro);
    font-size: 0.875rem;
}

/* ----- CONTADOR REGRESSIVO ----- */
.seminario-countdown {
    background: linear-gradient(135deg, var(--cor-secundaria) 0%, #1a3a45 100%);
    padding: 3rem 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    color: var(--cor-branco);
    box-shadow: var(--sombra-forte);
}

.seminario-countdown h3 {
    margin: 0 0 2rem 0;
    font-size: 1.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.countdown-timer {
    display: flex;
    justify-content: center;
    gap: 2rem;
    flex-wrap: wrap;
}

.countdown-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    min-width: 100px;
}

.countdown-number {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1;
    background: linear-gradient(135deg, var(--cor-primaria) 0%, #1fd4c1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.countdown-label {
    margin-top: 0.5rem;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.9;
}

/* ----- ESTATÍSTICAS ----- */
.seminario-stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 2rem;
    padding: 1rem 0;
}

.stat-card {
    background: linear-gradient(135deg, var(--cor-branco) 0%, #f8f9fa 100%);
    padding: 2rem;
    border-radius: var(--border-radius);
    text-align: center;
    box-shadow: var(--sombra-leve);
    transition: var(--transicao);
    border-top: 4px solid var(--cor-primaria);
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--sombra-media);
    border-top-color: var(--cor-destaque);
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    color: var(--cor-secundaria);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--cor-texto-claro);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 600;
}

/* ----- PROGRAMAÇÃO ----- */
.seminario-programacao {
    display: flex;
    flex-direction: column;
    gap: 3rem;
    padding: 1rem 0;
}

.programacao-dia {
    background: var(--cor-branco);
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--sombra-leve);
}

.programacao-data {
    background: linear-gradient(135deg, var(--cor-secundaria) 0%, #1a3a45 100%);
    color: var(--cor-branco);
    padding: 1.5rem 2rem;
    margin: 0;
    font-size: 1.5rem;
    font-weight: 700;
}

.programacao-paineis {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.programacao-item {
    display: grid;
    grid-template-columns: 120px 1fr;
    gap: 2rem;
    padding: 1.5rem;
    background: var(--cor-fundo);
    border-radius: 8px;
    border-left: 4px solid var(--cor-primaria);
    transition: var(--transicao);
}

.programacao-item:hover {
    background: var(--cor-branco);
    box-shadow: var(--sombra-leve);
}

.programacao-horario {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--cor-primaria);
    text-align: center;
    padding: 0.5rem;
    background: var(--cor-branco);
    border-radius: 6px;
}

.programacao-detalhes h4 {
    margin: 0 0 0.75rem 0;
    font-size: 1.25rem;
    color: var(--cor-secundaria);
    font-weight: 700;
}

.programacao-moderador {
    margin: 0.5rem 0;
    color: var(--cor-texto-claro);
    font-size: 0.95rem;
}

.programacao-descricao {
    margin: 0.75rem 0 0 0;
    color: var(--cor-texto);
    line-height: 1.6;
}

/* ----- ANIMAÇÕES ----- */
@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

/* ----- RESPONSIVO ----- */
@media (max-width: 768px) {
    :root {
        --espacamento: 1.5rem;
    }
    
    .seminario-inscricao-form {
        padding: 1.5rem;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .seminario-paineis-grid,
    .seminario-conferencistas-grid,
    .seminario-observadores-grid {
        grid-template-columns: 1fr;
    }
    
    .countdown-timer {
        gap: 1rem;
    }
    
    .countdown-number {
        font-size: 2.5rem;
    }
    
    .programacao-item {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .programacao-horario {
        text-align: left;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
}

@media (max-width: 480px) {
    .seminario-countdown h3 {
        font-size: 1.25rem;
    }
    
    .countdown-number {
        font-size: 2rem;
    }
    
    .painel-content h3 {
        font-size: 1.125rem;
    }
}

/* ----- ACESSIBILIDADE ----- */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Melhor contraste para leitores de tela */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}