/* ============================================
   Variáveis CSS
   ============================================ */
:root {
    --color-bg: #1a1a1a;
    --color-timeline-line: #FFFFFF;
    --color-timeline-point: #FFA500;
    --color-text-primary: #FFFFFF;
    --color-text-secondary: #CCCCCC;
    --color-card-bg: #2a2a2a;
    --color-card-expanded: #333333;
    --color-button: #FFA500;
    --color-button-hover: #FFD700;
    --color-header-bg: #1a1a1a;
    --spacing-unit: 1rem;
    --timeline-width: 4px;
    --point-size: 20px;
    --point-size-mobile: 16px;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.7);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.9);
}

/* ============================================
   Reset e Base
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background-color: var(--color-bg);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    margin: 0;
    padding: 0;
}

/* ============================================
   Header
   ============================================ */
.site-header {
    background-color: var(--color-header-bg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: calc(var(--spacing-unit) * 1.5) var(--spacing-unit);
    position: relative;
    z-index: 100;
}

.header-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: calc(var(--spacing-unit) * 1);
}

.site-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin: 0;
    flex: 1;
    text-align: center;
}

.header-nav {
    display: flex;
    gap: calc(var(--spacing-unit) * 1.5);
    align-items: center;
}

.nav-link {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color var(--transition-base);
    padding: calc(var(--spacing-unit) * 0.5) calc(var(--spacing-unit) * 0.75);
    border-radius: 4px;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--color-timeline-point);
    outline: 2px solid var(--color-timeline-point);
    outline-offset: 2px;
}

@media (max-width: 767px) {
    .header-content {
        flex-direction: column;
        text-align: center;
    }
    
    .site-title {
        font-size: 1.3rem;
        text-align: center;
    }
    
    .header-nav {
        justify-content: center;
        flex-wrap: wrap;
        gap: calc(var(--spacing-unit) * 1);
    }
    
    .nav-link {
        font-size: 0.9rem;
    }
}

/* ============================================
   Container Principal
   ============================================ */
.timeline-container {
    position: relative;
    width: 100%;
    min-height: calc(100vh - 80px);
    padding: calc(var(--spacing-unit) * 3) var(--spacing-unit);
    max-width: 1200px;
    margin: 0 auto;
    overflow: visible;
}

/* ============================================
   Linha da Timeline
   ============================================ */
.timeline-line {
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: var(--timeline-width);
    background: linear-gradient(
        to bottom,
        var(--color-timeline-line),
        var(--color-timeline-line) 90%,
        transparent
    );
    transform: translateX(-50%);
    z-index: 1;
    opacity: 0.9;
}

/* ============================================
   Container de Eventos
   ============================================ */
.timeline-events {
    position: relative;
    z-index: 2;
    list-style: none;
    overflow: visible;
}

/* ============================================
   Evento Individual
   ============================================ */
.timeline-event {
    position: relative;
    margin-bottom: calc(var(--spacing-unit) * 5);
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--transition-base), transform var(--transition-base);
    will-change: opacity, transform;
    z-index: 1;
}

.timeline-event.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Quando o evento está ativo/expandido, aumenta o z-index para sobrepor os outros */
.timeline-event:hover,
.timeline-event.active {
    z-index: 100 !important;
}

/* Mantém z-index alto quando tem card expandido visível ou fechando */
.timeline-event:has(.event-expanded-content.closing),
.timeline-event.active:has(.event-expanded-content) {
    z-index: 100 !important;
}

.timeline-event-content {
    position: relative;
    display: flex;
    align-items: center;
    width: 100%;
    max-width: 500px;
    margin: 0 auto;
    z-index: 2;
}


/* Layout alternado para desktop */
@media (min-width: 768px) {
    .timeline-event:nth-child(odd) .timeline-event-content {
        margin-right: auto;
        margin-left: calc(50% + calc(var(--spacing-unit) * 2));
        flex-direction: row;
    }
    
    .timeline-event:nth-child(even) .timeline-event-content {
        margin-left: auto;
        margin-right: calc(50% + calc(var(--spacing-unit) * 2));
        flex-direction: row-reverse;
    }
    
    /* Evento pending sempre centralizado */
    .timeline-event-pending .timeline-event-content {
        margin-left: auto !important;
        margin-right: auto !important;
        flex-direction: row !important;
    }
}

/* ============================================
   Ponto da Timeline
   ============================================ */
.timeline-point {
    position: absolute;
    left: 50%;
    top: 0;
    width: var(--point-size);
    height: var(--point-size);
    background-color: var(--color-timeline-point);
    border: 4px solid var(--color-bg);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    cursor: pointer;
    z-index: 10;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    will-change: transform;
    box-shadow: 0 0 0 0 rgba(255, 165, 0, 0.4);
    animation: pointPulse 3s ease-in-out infinite;
}

@keyframes pointPulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.15);
    }
}

.timeline-point:hover,
.timeline-point:focus {
    transform: translate(-50%, -50%) scale(1.3);
    box-shadow: 0 0 0 8px rgba(255, 165, 0, 0.3);
    outline: 2px solid var(--color-timeline-point);
    outline-offset: 2px;
    animation: none;
}

.timeline-point:active {
    transform: translate(-50%, -50%) scale(1.2);
    animation: none;
}

/* ============================================
   Ponto Especial (Pending) - Círculo Vermelho Maior
   ============================================ */
.timeline-point-pending {
    width: calc(var(--point-size) * 2);
    height: calc(var(--point-size) * 2);
    background-color: #DC3545;
    border: 5px solid var(--color-bg);
    border-radius: 50%;
    box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.7);
    animation: pointPulsePending 2s ease-in-out infinite;
    z-index: 15;
}

@keyframes pointPulsePending {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        box-shadow: 0 0 0 0 rgba(220, 53, 69, 0.7);
    }
    50% {
        transform: translate(-50%, -50%) scale(1.3);
        box-shadow: 0 0 0 15px rgba(220, 53, 69, 0.4);
    }
}

.timeline-point-pending:hover,
.timeline-point-pending:focus {
    transform: translate(-50%, -50%) scale(1.4);
    box-shadow: 0 0 0 20px rgba(220, 53, 69, 0.3);
    outline: 3px solid #DC3545;
    outline-offset: 3px;
    animation: none;
}

.timeline-point-pending:active {
    transform: translate(-50%, -50%) scale(1.35);
    animation: none;
}

@media (max-width: 767px) {
    .timeline-point-pending {
        width: calc(var(--point-size-mobile) * 2);
        height: calc(var(--point-size-mobile) * 2);
        border-width: 5px;
    }
}

@media (max-width: 767px) {
    .timeline-point {
        width: var(--point-size-mobile);
        height: var(--point-size-mobile);
        border-width: 4px;
    }
}

/* ============================================
   Título do Evento
   ============================================ */
.event-title {
    flex: 1;
    padding: calc(var(--spacing-unit) * 1.5);
    background-color: var(--color-card-bg);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
    transition: background-color var(--transition-base), box-shadow var(--transition-base);
    user-select: none;
    -webkit-tap-highlight-color: transparent;
}

.event-title:hover,
.event-title:focus {
    background-color: var(--color-card-expanded);
    box-shadow: var(--shadow-md);
    outline: 2px solid var(--color-timeline-point);
    outline-offset: 2px;
}

.event-title h2 {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--color-text-primary);
    margin: 0;
}

.event-title .event-date {
    font-size: 0.85rem;
    color: var(--color-text-secondary);
    margin-top: calc(var(--spacing-unit) * 0.5);
    font-weight: 400;
}

@media (max-width: 767px) {
    .event-title {
        padding: var(--spacing-unit);
        margin-left: calc(var(--spacing-unit) * 2);
    }
    
    .event-title h2 {
        font-size: 1rem;
    }
    
    .event-title .event-date {
        font-size: 0.8rem;
    }
    
    .timeline-event {
        margin-bottom: calc(var(--spacing-unit) * 3);
    }
}

/* ============================================
   Card Expandido (Tooltip Inline)
   ============================================ */
.event-expanded-content {
    position: absolute;
    left: 0;
    right: 0;
    top: calc(100% + var(--spacing-unit));
    background-color: var(--color-card-expanded);
    border-radius: 12px;
    padding: calc(var(--spacing-unit) * 2);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    max-height: 0;
    overflow: hidden;
    transform: translateY(-10px);
    transition: opacity var(--transition-slow), 
                visibility var(--transition-slow), 
                max-height var(--transition-slow),
                transform var(--transition-slow),
                padding var(--transition-slow);
    z-index: 1000 !important;
    pointer-events: none;
    width: 100%;
}

/* Mantém z-index alto durante animação de fechamento */
.event-expanded-content.closing {
    z-index: 1000 !important;
    visibility: visible !important;
}

.timeline-event:hover .event-expanded-content,
.timeline-event.active .event-expanded-content {
    opacity: 1;
    visibility: visible;
    max-height: 2000px;
    transform: translateY(0);
    padding: calc(var(--spacing-unit) * 2);
    pointer-events: auto;
    z-index: 1000 !important;
}

/* Garante que o card expandido também mantém o hover */
.event-expanded-content:hover {
    opacity: 1 !important;
    visibility: visible !important;
}

.event-expanded-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-text-primary);
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}

.event-expanded-content .expanded-date {
    font-size: 0.9rem;
    color: var(--color-text-secondary);
    margin-bottom: calc(var(--spacing-unit) * 1.5);
}

.event-expanded-content .expanded-image {
    width: 100%;
    height: auto;
    border-radius: 8px;
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    box-shadow: var(--shadow-md);
    object-fit: cover;
    max-height: 300px;
    background-color: var(--color-bg);
}

.event-expanded-content .expanded-image:not([src]),
.event-expanded-content .expanded-image[src=""] {
    display: none;
}

.event-expanded-content .expanded-description {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--color-text-primary);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

.event-expanded-content .expanded-link {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 0.75) calc(var(--spacing-unit) * 1.5);
    background-color: var(--color-button);
    color: var(--color-bg);
    text-decoration: none;
    border-radius: 6px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: background-color var(--transition-base), transform var(--transition-base);
    -webkit-tap-highlight-color: transparent;
}

.event-expanded-content .expanded-link:hover,
.event-expanded-content .expanded-link:focus {
    background-color: var(--color-button-hover);
    transform: translateY(-2px);
    outline: 2px solid var(--color-button-hover);
    outline-offset: 2px;
}

/* Layout alternado para desktop - ajustar posição do card expandido */
@media (min-width: 768px) {
    .timeline-event:nth-child(odd) .event-expanded-content {
        left: auto;
        right: 0;
        max-width: 500px;
        margin-left: calc(var(--spacing-unit) * 2);
    }
    
    .timeline-event:nth-child(even) .event-expanded-content {
        right: auto;
        left: 0;
        max-width: 500px;
        margin-right: calc(var(--spacing-unit) * 2);
    }
}

@media (max-width: 767px) {
    .event-expanded-content {
        padding: calc(var(--spacing-unit) * 1.5);
        margin-left: calc(var(--spacing-unit) * 2);
        margin-right: 0;
    }
    
    .event-expanded-content h3 {
        font-size: 1.2rem;
    }
    
    .event-expanded-content .expanded-description {
        font-size: 0.95rem;
    }
}

/* ============================================
   Animações
   ============================================ */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


/* ============================================
   Responsividade Mobile
   ============================================ */
@media (max-width: 767px) {
    .timeline-container {
        padding: calc(var(--spacing-unit) * 2) calc(var(--spacing-unit) * 1.5);
    }
    
    .timeline-line {
        left: calc(var(--point-size-mobile) / 2 + var(--spacing-unit) * 1.5);
    }
    
    .timeline-event-content {
        max-width: 100%;
    }
    
    .timeline-point {
        left: calc(var(--point-size-mobile) / 2 + var(--spacing-unit) * 1.5);
    }
    
    .timeline-event {
        margin-bottom: calc(var(--spacing-unit) * 3);
    }
}

/* ============================================
   Acessibilidade
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* Melhorias de foco para navegação por teclado */
*:focus-visible {
    outline: 2px solid var(--color-timeline-point);
    outline-offset: 2px;
}

.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;
}

/* ============================================
   Pop-up Modal de Ação
   ============================================ */
.action-modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.85);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-unit);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition-slow), visibility var(--transition-slow);
    backdrop-filter: blur(4px);
}

.action-modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.action-modal-container {
    position: relative;
    background-color: var(--color-card-bg);
    border-radius: 16px;
    width: 100%;
    max-width: 400px;
    aspect-ratio: 3 / 4;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.9);
    transform: translateY(-50px);
    transition: transform var(--transition-slow);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.action-modal-overlay.active .action-modal-container {
    transform: translateY(0);
}

.action-modal-close {
    position: absolute;
    top: calc(var(--spacing-unit) * 1);
    right: calc(var(--spacing-unit) * 1);
    width: 36px;
    height: 36px;
    border: none;
    background-color: transparent;
    color: var(--color-text-primary);
    font-size: 32px;
    line-height: 1;
    cursor: pointer;
    z-index: 10001;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: background-color var(--transition-base), transform var(--transition-base);
    -webkit-tap-highlight-color: transparent;
    padding: 0;
}

.action-modal-close:hover,
.action-modal-close:focus {
    background-color: rgba(255, 255, 255, 0.1);
    transform: rotate(90deg);
    outline: 2px solid var(--color-timeline-point);
    outline-offset: 2px;
}

.action-modal-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: calc(var(--spacing-unit) * 1.5);
    padding-top: calc(var(--spacing-unit) * 2.5);
    overflow: hidden;
    min-height: 0;
}

.action-modal-image-container {
    width: 100%;
    aspect-ratio: 1 / 1;
    max-height: 35%;
    margin-bottom: calc(var(--spacing-unit) * 1);
    border-radius: 12px;
    overflow: hidden;
    background-color: var(--color-bg);
    flex-shrink: 0;
}

.action-modal-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.action-modal-title {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--color-timeline-point);
    text-align: center;
    margin: 0 0 calc(var(--spacing-unit) * 0.75);
    line-height: 1.3;
    flex-shrink: 0;
}

.action-modal-text {
    font-size: 0.95rem;
    line-height: 1.5;
    color: var(--color-text-primary);
    text-align: center;
    margin: 0 0 calc(var(--spacing-unit) * 1.5);
    flex: 1;
    display: flex;
    align-items: flex-start;
    overflow: hidden;
    min-height: 0;
}

.action-modal-button {
    display: block;
    width: 100%;
    padding: calc(var(--spacing-unit) * 0.9) calc(var(--spacing-unit) * 1.5);
    background-color: var(--color-button);
    color: var(--color-bg);
    text-decoration: none;
    border-radius: 8px;
    font-weight: 700;
    font-size: 1rem;
    text-align: center;
    transition: background-color var(--transition-base), transform var(--transition-base);
    -webkit-tap-highlight-color: transparent;
    flex-shrink: 0;
}

.action-modal-button:hover,
.action-modal-button:focus {
    background-color: var(--color-button-hover);
    transform: translateY(-2px);
    outline: 2px solid var(--color-button-hover);
    outline-offset: 2px;
}

.action-modal-button:active {
    transform: translateY(0);
}

/* Responsividade Mobile */
@media (max-width: 767px) {
    .action-modal-container {
        max-width: 90vw;
        aspect-ratio: 3 / 4;
    }
    
    .action-modal-content {
        padding: calc(var(--spacing-unit) * 1.2);
        padding-top: calc(var(--spacing-unit) * 2);
    }
    
    .action-modal-image-container {
        max-height: 30%;
        margin-bottom: calc(var(--spacing-unit) * 0.75);
    }
    
    .action-modal-title {
        font-size: 1.2rem;
        margin-bottom: calc(var(--spacing-unit) * 0.5);
    }
    
    .action-modal-text {
        font-size: 0.9rem;
        line-height: 1.4;
        margin-bottom: calc(var(--spacing-unit) * 1.2);
    }
    
    .action-modal-button {
        font-size: 0.95rem;
        padding: calc(var(--spacing-unit) * 0.8) calc(var(--spacing-unit) * 1.2);
    }
    
    .action-modal-close {
        width: 32px;
        height: 32px;
        font-size: 28px;
        top: calc(var(--spacing-unit) * 0.75);
        right: calc(var(--spacing-unit) * 0.75);
    }
}

/* Animações */
@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.action-modal-overlay.active .action-modal-container {
    animation: modalSlideIn 0.5s ease-out;
}