/**
 * Seção: Programação
 * 
 * ESPECIFICIDADE: Nível 3 - Classes com namespace específico
 * NAMESPACING: Prefixo .programacao__*
 * PRIORIDADE: Carregamento #5
 */

/* ===== CONTAINER PRINCIPAL ===== */
.programacao {
    background: linear-gradient(180deg, var(--light-gray) 0%, #ffffff 50%, var(--light-gray) 100%);
    padding: var(--spacing-3xl) 0;
    position: relative;
}

.programacao::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--primary-color), transparent);
    opacity: 0.2;
}

/* ===== NAVEGAÇÃO DOS DIAS ===== */
.programacao__nav {
    margin-bottom: var(--spacing-3xl);
}

.programacao__nav .nav-pills {
    display: flex;
    justify-content: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
    padding: 0;
    list-style: none;
}

.programacao__nav .nav-link {
    /* Layout */
    padding: var(--spacing-md) var(--spacing-xl);
    min-width: 160px;
    text-align: center;
    
    /* Visual */
    background: var(--white);
    color: var(--dark-gray);
    border: 2px solid var(--primary-color);
    border-radius: var(--border-radius-lg);
    
    /* Tipografia */
    font-weight: 600;
    text-decoration: none;
    
    /* Transição */
    transition: all var(--transition-normal);
    cursor: pointer;
}

.programacao__nav .nav-link:hover {
    background: rgba(139, 69, 19, 0.05);
    border-color: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.programacao__nav .nav-link.active {
    background: var(--primary-color);
    color: var(--white);
    border-color: var(--primary-color);
    box-shadow: var(--shadow-md);
}

.nav-dia-info {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.nav-dia-nome {
    font-weight: 700;
    font-size: var(--font-size-base);
    display: block;
}

.nav-dia-data {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    display: block;
    font-weight: 500;
}

/* ===== TIMELINE ===== */
.programacao__timeline {
    max-width: 900px;
    margin: 0 auto;
    position: relative;
}

/* ===== ITEM DA PROGRAMAÇÃO ===== */
.programacao__item {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-2xl);
    position: relative;
}

.programacao__item:last-child {
    margin-bottom: 0;
}

/* ===== HORÁRIO ===== */
.programacao__time {
    width: 110px;
    text-align: right;
    padding-top: var(--spacing-sm);
    flex-shrink: 0;
}

.programacao__hour {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--primary-color);
    display: block;
    line-height: 1.2;
    font-family: var(--font-secondary);
}

.programacao__duration {
    font-size: var(--font-size-xs);
    color: var(--gray);
    display: block;
    margin-top: var(--spacing-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ===== MARCADOR VISUAL ===== */
.programacao__marker {
    width: 40px;
    display: flex;
    justify-content: center;
    align-items: flex-start;
    padding-top: var(--spacing-md);
    position: relative;
    flex-shrink: 0;
}

.programacao__marker::after {
    content: '';
    position: absolute;
    top: 40px;
    left: 50%;
    transform: translateX(-50%);
    width: 3px;
    height: calc(100% + var(--spacing-2xl));
    background: linear-gradient(180deg, var(--primary-color), rgba(139, 69, 19, 0.2));
    z-index: 0;
    border-radius: 2px;
}

.programacao__item:last-child .programacao__marker::after {
    display: none;
}

.programacao__dot {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    position: relative;
    z-index: 1;
    border: 4px solid var(--white);
    box-shadow: 0 0 0 2px var(--primary-color), var(--shadow-sm);
    background: var(--primary-color);
    transition: all var(--transition-normal);
}

.programacao__item:hover .programacao__dot {
    transform: scale(1.2);
    box-shadow: 0 0 0 4px var(--primary-color), var(--shadow-md);
}

/* Variações de cor por tipo */
.programacao__dot--abertura {
    background: var(--success-color);
    box-shadow: 0 0 0 2px var(--success-color), var(--shadow-sm);
}

.programacao__dot--encerramento {
    background: var(--warning-color);
    box-shadow: 0 0 0 2px var(--warning-color), var(--shadow-sm);
}

.programacao__dot--palestra {
    background: #1E3A8A;
    box-shadow: 0 0 0 2px #1E3A8A, var(--shadow-sm);
}

.programacao__dot--dinamica {
    background: var(--secondary-color);
    box-shadow: 0 0 0 2px var(--secondary-color), var(--shadow-sm);
}

.programacao__dot--outros {
    background: var(--info-color);
    box-shadow: 0 0 0 2px var(--info-color), var(--shadow-sm);
}

/* ===== CARD DA PROGRAMAÇÃO ===== */
.programacao__card {
    background: var(--white);
    border-radius: var(--border-radius-xl);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    border-left: 4px solid var(--primary-color);
    transition: all var(--transition-normal);
}

.programacao__card:hover {
    box-shadow: 0 8px 24px rgba(139, 69, 19, 0.15);
    transform: translateY(-4px) translateX(4px);
    border-left-width: 6px;
}

/* ===== HEADER DO CARD ===== */
.programacao__card-header {
    padding: var(--spacing-xl);
    background: linear-gradient(135deg, rgba(139, 69, 19, 0.02) 0%, transparent 100%);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.programacao__title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    color: var(--dark-gray);
    margin: 0 0 var(--spacing-sm) 0;
    line-height: 1.3;
}

.programacao__location {
    font-size: var(--font-size-sm);
    color: var(--gray);
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-xs);
    font-weight: 500;
}

.programacao__location i {
    color: var(--primary-color);
}

/* ===== BODY DO CARD ===== */
.programacao__card-body {
    padding: var(--spacing-xl);
}

.programacao__description {
    color: var(--dark-gray);
    margin: 0 0 var(--spacing-lg) 0;
    line-height: 1.7;
    font-size: var(--font-size-base);
}

.programacao__speaker {
    display: inline-flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(139, 69, 19, 0.05);
    border-radius: var(--border-radius-md);
    color: var(--primary-color);
    font-weight: 600;
    font-size: var(--font-size-sm);
}

.programacao__speaker i {
    font-size: var(--font-size-base);
}

/* ===== FOOTER DO CARD ===== */
.programacao__card-footer {
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, rgba(139, 69, 19, 0.03) 0%, transparent 100%);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.programacao__type {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-md);
    border-radius: 20px;
    color: var(--white);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-sm);
}

/* Variações de cor por tipo */
.programacao__type--abertura {
    background: linear-gradient(135deg, var(--success-color) 0%, #20a347 100%);
}

.programacao__type--palestra {
    background: linear-gradient(135deg, #1E3A8A 0%, #2b5aa0 100%);
}

.programacao__type--apresentacao {
    background: linear-gradient(135deg, var(--accent-color) 0%, var(--accent-light) 100%);
}

.programacao__type--dinamica {
    background: linear-gradient(135deg, var(--secondary-color) 0%, var(--secondary-light) 100%);
}

.programacao__type--encerramento {
    background: linear-gradient(135deg, var(--warning-color) 0%, #ffb347 100%);
}

.programacao__type--outros {
    background: linear-gradient(135deg, var(--info-color) 0%, #1fa2b8 100%);
}

/* ===== ESTADO VAZIO ===== */
.programacao__empty-state {
    text-align: center;
    padding: var(--spacing-3xl) var(--spacing-xl);
    background: var(--white);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-sm);
    max-width: 600px;
    margin: 0 auto;
}

.programacao__empty-icon {
    font-size: 4rem;
    color: var(--primary-color);
    opacity: 0.3;
    margin-bottom: var(--spacing-lg);
    display: block;
}

.programacao__empty-title {
    font-size: var(--font-size-2xl);
    color: var(--primary-color);
    font-weight: 700;
    margin: 0 0 var(--spacing-md) 0;
}

.programacao__empty-text {
    font-size: var(--font-size-base);
    color: var(--gray);
    margin: 0;
    line-height: 1.6;
}

/* ===== RESPONSIVIDADE ===== */
@media (max-width: 991px) {
    .programacao {
        padding: var(--spacing-2xl) 0;
    }
    
    .programacao__timeline {
        max-width: 100%;
    }
}

@media (max-width: 768px) {
    .programacao {
        padding: var(--spacing-xl) 0;
    }
    
    .programacao__item {
        flex-direction: column;
        gap: var(--spacing-sm);
        margin-bottom: var(--spacing-xl);
    }
    
    .programacao__time {
        width: 100%;
        text-align: left;
        margin-left: 30px;
        padding: 0;
        display: flex;
        align-items: center;
        gap: var(--spacing-sm);
    }
    
    .programacao__hour {
        font-size: var(--font-size-lg);
    }
    
    .programacao__duration {
        margin-top: 0;
    }
    
    .programacao__marker {
        position: absolute;
        left: 0;
        top: 0;
        width: 24px;
        padding-top: 0;
    }
    
    .programacao__dot {
        width: 20px;
        height: 20px;
    }
    
    .programacao__marker::after {
        left: 50%;
        top: 30px;
    }
    
    .programacao__content {
        padding-left: var(--spacing-2xl);
    }
    
    .programacao__card-header,
    .programacao__card-body {
        padding: var(--spacing-lg);
    }
    
    .programacao__card-footer {
        padding: var(--spacing-sm) var(--spacing-lg);
    }
    
    .programacao__nav .nav-link {
        min-width: 140px;
        padding: var(--spacing-sm) var(--spacing-md);
    }
}

@media (max-width: 576px) {
    .programacao__nav .nav-pills {
        gap: var(--spacing-sm);
    }
    
    .programacao__nav .nav-link {
        min-width: 120px;
        padding: var(--spacing-xs) var(--spacing-sm);
    }
    
    .nav-dia-nome {
        font-size: var(--font-size-sm);
    }
    
    .nav-dia-data {
        font-size: var(--font-size-xs);
    }
    
    .programacao__hour {
        font-size: var(--font-size-base);
    }
    
    .programacao__title {
        font-size: var(--font-size-lg);
    }
    
    .programacao__card-header,
    .programacao__card-body {
        padding: var(--spacing-md);
    }
    
    .programacao__empty-state {
        padding: var(--spacing-xl) var(--spacing-md);
    }
    
    .programacao__empty-icon {
        font-size: 3rem;
    }
    
    .programacao__empty-title {
        font-size: var(--font-size-xl);
    }
}

/* ===== ACESSIBILIDADE ===== */
@media (prefers-reduced-motion: reduce) {
    .programacao__card,
    .programacao__dot {
        animation: none !important;
        transition: none !important;
    }
    
    .programacao__card:hover,
    .programacao__item:hover .programacao__dot {
        transform: none;
    }
}