:root {
    --bg-color: #f5f5f3;
    --text-color: #111111;
    --accent-dark: #000000;
    --font-main: 'Courier New', Courier, monospace;
    --font-sans: 'Helvetica Neue', Helvetica, Arial, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    overflow-x: hidden;
    background-image: radial-gradient(rgba(0,0,0,0.05) 1px, transparent 0);
    background-size: 24px 24px;
    /* Transición pesada y dramática para simular cambios de luz abruptos */
    transition: background-color 0.8s cubic-bezier(0.76, 0, 0.24, 1), color 0.8s cubic-bezier(0.76, 0, 0.24, 1);
}

/* --- CLASES MODIFICADORAS PARA EL FONDO OSCURO ALTERNADO --- */
body.dark-mode {
    background-color: #0d0d0d;
    color: #f5f5f3;
    background-image: radial-gradient(rgba(255,255,255,0.05) 1px, transparent 0);
}
body.dark-mode .boat-card {
    border-left-color: #f5f5f3;
}
body.dark-mode .skills-list span {
    border-color: #f5f5f3;
}
body.dark-mode .scroll-indicator .arrow {
    background: #f5f5f3;
}
body.dark-mode .scroll-indicator {
    color: #f5f5f3;
}
body.dark-mode blockquote {
    border-left-color: #f5f5f3;
}
body.dark-mode .final-card {
    border-top-color: #f5f5f3;
    border-bottom-color: #f5f5f3;
}

#section-boat { width: 100vw; min-height: 100vh; position: relative; }

.scroll-indicator {
    position: absolute; top: 45vh; left: 50%; transform: translate(-50%, -50%);
    text-align: center; font-family: var(--font-main); font-size: 0.9rem; letter-spacing: 4px;
    transition: color 0.5s ease;
}
.scroll-indicator .arrow {
    width: 1px; height: 60px; background: var(--text-color); margin: 20px auto 0;
    animation: pulseArrow 2s infinite ease-in-out;
    transition: background-color 0.5s ease;
}
@keyframes pulseArrow {
    0% { height: 0; opacity: 0; }
    50% { height: 60px; opacity: 1; }
    100% { height: 0; opacity: 0; }
}

.boat-scroll-container { 
    padding-top: 80vh; 
    padding-bottom: 90vh; /* ← Cambiá esto de 40vh a 100vh */
    display: flex; 
    flex-direction: column; 
    gap: 35vh; 
}

/* --- ESTRUCTURA HORIZONTAL (IMAGEN AL COSTADO DEL TEXTO) --- */
.narrative-row {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8%;
    width: 100%;
    padding: 0 10%;
    
    /* Estado inicial: muy abajo, rotado bruscamente y comprimido */
    opacity: 0;
    transform: translateY(180px) rotate(4deg) scale(0.9);
    
    /* Curva acelerada y pesada para que la aparición sea violenta e inmersiva */
    transition: opacity 0.6s cubic-bezier(0.19, 1, 0.22, 1), 
                transform 0.8s cubic-bezier(0.25, 1, 0.2, 1);
    will-change: transform, opacity;
}

/* Direcciones alternadas de los bloques */
.narrative-row.left-img { flex-direction: row; }
.narrative-row.right-img { flex-direction: row-reverse; }
.narrative-row.center { flex-direction: column; }

/* Entrada Activa (Golpe de aparición) */
.narrative-row.active { 
    opacity: 1; 
    transform: translateY(0) rotate(0deg) scale(1); 
}

/* Tarjetas de Texto */
.boat-card { 
    background: transparent; 
    border-left: 4px solid var(--accent-dark); 
    padding: 10px 0 10px 30px; 
    flex: 1;
    max-width: 500px; 
    transition: border-color 0.5s ease;
}
.boat-card.dark-card { background: var(--accent-dark); color: var(--bg-color); border-left: none; padding: 40px; }
.chapter-number { font-family: var(--font-main); font-size: 3rem; font-weight: bold; display: block; opacity: 0.3; }
.boat-card h2 { font-family: var(--font-main); font-size: 2.2rem; margin-bottom: 5px; text-transform: uppercase; }
.boat-card h3 { font-family: var(--font-main); font-size: 1.5rem; margin-bottom: 15px; }
.subtitle { font-family: var(--font-main); font-style: italic; margin-bottom: 20px; opacity: 0.7; }
.boat-card p { font-size: 1.05rem; line-height: 1.6; margin-bottom: 15px; }

.skills-list { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.skills-list span { font-family: var(--font-main); font-size: 0.8rem; border: 1px solid var(--text-color); padding: 4px 8px; transition: border-color 0.5s ease; }
blockquote { font-family: var(--font-main); font-style: italic; border-left: 2px dashed var(--text-color); padding-left: 15px; margin: 20px 0; transition: border-color 0.5s ease; }
.concept-list { padding-left: 20px; }
.concept-list li { margin-bottom: 12px; }
.source-tag, .award-tag { font-family: var(--font-main); font-size: 0.85rem; opacity: 0.8; }
.highlight { font-weight: bold; font-style: italic; }

.final-card { text-align: center; border-left: none; border-top: 1px solid var(--text-color); border-bottom: 1px solid var(--text-color); padding: 40px 20px; max-width: 700px; transition: border-color 0.5s ease; }
.final-statement { font-family: var(--font-main); font-size: 1.3rem !important; font-weight: bold; margin-top: 20px; }

/* Contenedores de Imágenes */
.boat-img-container {
    flex: 1;
    display: flex;
    justify-content: center;
    max-width: 450px;
}

.boat-img {
    width: 100%;
    height: auto;
    object-fit: cover;
    border: 1px solid var(--text-color);
    box-shadow: 0 15px 35px rgba(0,0,0,0.15);
    filter: grayscale(100%) contrast(125%); /* Blanco y negro agresivo estilo sumi-e */
    transition: filter 0.5s ease, border-color 0.5s ease;
}

body.dark-mode .boat-img {
    border-color: #f5f5f3;
}

.narrative-row.active:hover .boat-img {
    filter: grayscale(100%) contrast(145%);
}

/* ==========================================
    ANIMACIÓN DE MAR CONTINUA (ESTILO THE BOAT)
   ========================================== */
/* Vaivén asimétrico e inestable una vez que las filas entran en pantalla */
.narrative-row.active.trigger-sway:nth-child(odd) {
    animation: maritimeSwayLeft 5.5s cubic-bezier(0.445, 0.05, 0.55, 0.95) infinite alternate;
}

.narrative-row.active.trigger-sway:nth-child(even) {
    animation: maritimeSwayRight 6.8s cubic-bezier(0.445, 0.05, 0.55, 0.95) infinite alternate;
}

@keyframes maritimeSwayLeft {
    0% { transform: rotate(-2.5deg) translateY(0) translateX(-10px); }
    30% { transform: rotate(1deg) translateY(-12px) translateX(8px); }
    70% { transform: rotate(-1.5deg) translateY(-5px) translateX(-4px); }
    100% { transform: rotate(2deg) translateY(-15px) translateX(12px); }
}

@keyframes maritimeSwayRight {
    0% { transform: rotate(2.5deg) translateY(-5px) translateX(10px); }
    40% { transform: rotate(-2deg) translateY(-18px) translateX(-12px); }
    60% { transform: rotate(0.8deg) translateY(-2px) translateX(4px); }
    100% { transform: rotate(-2.5deg) translateY(-14px) translateX(-8px); }
}

/* Modo Responsive (Celulares) */
@media (max-width: 768px) {
    .narrative-row.left-img, .narrative-row.right-img {
        flex-direction: column !important;
        gap: 4vh;
        padding: 0 6%;
    }
    .boat-card, .boat-img-container {
        max-width: 100%;
        width: 100%;
    }
}