/* ==========================================================================
   DESIGN SYSTEM & CUSTOM PROPERTIES (DARK MODE PREVALENT)
   ========================================================================== */
:root {
    /* Canva Palette (Adapted for Dark Mode) */
    --color-bg-dark: #121212;         /* Preto puro de fundo */
    --color-bg-panel: #1a1a1a;        /* Grafite profundo para cartões */
    --color-text-light: #efe7d8;      /* Creme suave (Cor principal do texto) */
    --color-gray-sof: #797979;         /* Cinza Sofisticado (Subtítulos e apoios) */
    --color-brown-deep: #4a3424;       /* Marrom Profundo (Bordas e detalhes quentes) */
    --color-teal-cava: #0f3d3e;        /* Azul/Verde Petróleo (Cor de ação principal) */
    --color-grafite-canva: #2b2b2b;    /* Grafite Intelectual */
    
    /* Typography */
    --font-heading: 'Cormorant Garamond', serif;
    --font-body: 'Outfit', sans-serif;
    --font-logo: 'Italiana', serif;
    
    /* Transitions */
    --transition-smooth: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    --transition-fast: all 0.25s ease-in-out;
}

/* ==========================================================================
   RESET & BASE STYLES
   ========================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
}

body {
    background-color: var(--color-bg-dark);
    color: var(--color-text-light);
    font-family: var(--font-body);
    line-height: 1.7;
    overflow-x: hidden;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 4px;
}

a {
    color: inherit;
    text-decoration: none;
    transition: var(--transition-fast);
}

/* Common Containers */
.container {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* ==========================================================================
   TYPOGRAPHY
   ========================================================================== */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    font-weight: 500;
    color: var(--color-text-light);
    line-height: 1.2;
}

.italic-quote {
    font-style: italic;
    font-family: var(--font-heading);
    font-size: 1.8rem;
    line-height: 1.6;
    color: var(--color-text-light);
    text-align: center;
    border-left: 2px solid var(--color-brown-deep);
    padding-left: 2rem;
    margin: 1rem 0;
}

.section-title {
    font-size: 2.8rem;
    font-weight: 500;
    margin-bottom: 2rem;
    text-align: center;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    font-family: var(--font-heading);
}

.section-title::after {
    content: ".";
    color: var(--color-teal-cava);
}

/* Text Highlights (Marcador de Texto Dinâmico) */
.highlight {
    background-image: linear-gradient(120deg, rgba(15, 61, 62, 0.65) 0%, rgba(15, 61, 62, 0.65) 100%);
    background-repeat: no-repeat;
    background-size: 0% 100%; /* Inicia vazio e desenha no scroll */
    background-position: 0 100%;
    border-bottom: 1.5px solid var(--color-teal-cava);
    padding: 0.15rem 0.4rem;
    border-radius: 3px;
    color: var(--color-text-light);
    display: inline;
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
    transition: background-size 0.35s cubic-bezier(0.25, 1, 0.5, 1); /* Fallback rápido */
}

.highlight.revealed {
    background-size: 100% 100%;
}

/* ==========================================================================
   HEADER / NAVBAR
   ========================================================================== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background-color: rgba(18, 18, 18, 0.85);
    border-bottom: 1px solid rgba(239, 231, 216, 0.05);
    backdrop-filter: blur(15px);
    -webkit-backdrop-filter: blur(15px);
    transition: var(--transition-smooth);
}

.header.scrolled {
    padding: 0.2rem 0;
    background-color: rgba(18, 18, 18, 0.95);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.2rem 2rem;
    transition: var(--transition-smooth);
}

.logo {
    font-family: var(--font-logo);
    font-size: 1.7rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    color: var(--color-text-light);
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2.2rem;
}

.nav-link {
    font-size: 0.85rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    color: var(--color-text-light);
    text-transform: uppercase;
    position: relative;
    padding: 0.3rem 0;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background-color: var(--color-teal-cava);
    transition: var(--transition-fast);
}

.nav-link:hover {
    color: var(--color-teal-cava);
}

.nav-link:hover::after {
    width: 100%;
}

.nav-btn {
    font-size: 0.8rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    background-color: var(--color-teal-cava);
    color: var(--color-text-light);
    padding: 0.65rem 1.4rem;
    transition: var(--transition-fast);
    border: 1px solid var(--color-teal-cava);
}

.nav-btn:hover {
    background-color: transparent;
    color: var(--color-teal-cava);
}

/* Mobile Menu Toggle */
.menu-toggle {
    display: none;
    flex-direction: column;
    justify-content: space-between;
    width: 24px;
    height: 18px;
    background: transparent;
    border: none;
    cursor: pointer;
    z-index: 1001;
}

.bar {
    width: 100%;
    height: 2px;
    background-color: var(--color-text-light);
    transition: var(--transition-fast);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 1.1rem 2.8rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    cursor: pointer;
    transition: var(--transition-smooth);
    border: 1px solid transparent;
}

.btn-primary {
    background-color: var(--color-teal-cava);
    color: var(--color-text-light);
}

.btn-primary:hover {
    background-color: transparent;
    border-color: var(--color-teal-cava);
    color: var(--color-teal-cava);
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(15, 61, 62, 0.2);
}

.btn-accent {
    background-color: var(--color-brown-deep);
    color: var(--color-text-light);
}

.btn-accent:hover {
    background-color: transparent;
    border-color: var(--color-brown-deep);
    color: var(--color-text-light);
    transform: translateY(-2px);
}

/* ==========================================================================
   HERO SECTION (MARQUEE INFINITO & TEXTO CENTRAL)
   ========================================================================== */
.hero-section {
    position: relative;
    width: 100%;
    height: 100vh;
    min-height: 600px;
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    border-bottom: 1px solid rgba(239, 231, 216, 0.03);
}

/* Marquee Background */
.marquee-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 1.5rem;
    opacity: 0.16;
    pointer-events: none;
}

/* Marquee Rows */
.marquee-row {
    display: flex;
    width: 100%;
    overflow: hidden;
    white-space: nowrap;
}

.marquee-track {
    display: flex;
    flex-direction: row;
    flex-wrap: nowrap;
    width: max-content; /* Crítico: Garante tamanho horizontal correto para loop infinito sem encolhimento */
    flex-shrink: 0; /* Impede o encolhimento do container flex */
    gap: 1.5rem;
}

.marquee-track img {
    height: 200px;
    width: 200px;
    object-fit: cover;
    border-radius: 8px;
    filter: grayscale(50%);
    flex-shrink: 0; /* Impede o encolhimento das imagens individuais */
}

/* Animações do Marquee */
.marquee-left .marquee-track {
    animation: marquee-left-anim 75s linear infinite;
}

.marquee-right .marquee-track {
    animation: marquee-right-anim 75s linear infinite;
}

@keyframes marquee-left-anim {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

@keyframes marquee-right-anim {
    0% { transform: translateX(-50%); }
    100% { transform: translateX(0); }
}

/* Hero Content Overlay */
.hero-overlay-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
    padding: 2rem;
    background: radial-gradient(circle, rgba(18, 18, 18, 0.9) 0%, rgba(18, 18, 18, 0) 80%);
}

.hero-name {
    font-family: var(--font-logo);
    font-size: 5.5rem;
    font-weight: 400;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    line-height: 1;
}

.hero-action-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.8rem;
}

.btn-hero {
    min-width: 280px;
    font-size: 1rem;
    padding: 1.1rem 3rem;
}

.btn-subtext {
    font-size: 0.85rem;
    color: var(--color-gray-sof);
    text-transform: uppercase;
    letter-spacing: 0.15em;
}

/* ==========================================================================
   VERTICAL LINEAR SECTIONS (SPACING DRASTICALLY REDUCED)
   ========================================================================== */
.text-section {
    padding: 3.5rem 0; /* Espaçamento entre seções drasticamente reduzido */
    display: flex;
    justify-content: center;
    align-items: center;
    background-color: var(--color-bg-dark);
}

.text-block-full {
    width: 100%;
    max-width: 850px;
    margin: 0 auto;
    text-align: center;
}

.paragraph-large {
    font-family: var(--font-heading);
    font-size: 1.7rem;
    line-height: 1.8;
    margin-bottom: 1.8rem; /* Espaçamento entre parágrafos reduzido */
    text-align: justify;
    font-weight: 300;
    letter-spacing: 0.01em;
    
    /* Revelação vertical linha por linha */
    background-image: linear-gradient(to bottom, var(--color-text-light) 100%, var(--color-text-light) 100%);
    background-repeat: no-repeat;
    background-size: 100% 0%; /* Inicia em 0% vertical */
    background-position: 0 0;
    background-color: rgba(239, 231, 216, 0.12); /* Linhas não lidas sutilmente visíveis */
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: background-size 0.45s cubic-bezier(0.25, 1, 0.5, 1); /* Fallback rápido */
}

.paragraph-large.revealed {
    background-size: 100% 100%;
    -webkit-text-fill-color: var(--color-text-light); /* Garante contraste total e texto nítido pós-animação */
}

.paragraph-large strong {
    font-weight: 600;
    color: var(--color-text-light);
}

/* Image Section Structure */
.image-section {
    padding: 1.5rem 0; /* Espaçamento vertical de imagens reduzido */
    background-color: var(--color-bg-dark);
    display: flex;
    justify-content: center;
}

.image-block-center {
    width: 100%;
    max-width: 900px;
    display: flex;
    flex-direction: column;
    align-items: center;
}

/* Personal Transformation Display */
.evolution-main-display {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    width: 100%;
}

.evolution-item {
    position: relative;
    border: 1px solid rgba(239, 231, 216, 0.08);
}

.evolution-item img {
    width: 100%;
    aspect-ratio: 3/4;
    object-fit: cover;
}

/* Patients 2x2 Grid Layout */
.patients-grid-2x2 {
    display: flex;
    flex-direction: column;
    gap: 2rem;
    width: 100%;
}

.patient-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    width: 100%;
}

.patient-photo-item {
    position: relative;
    border: 1px solid rgba(239, 231, 216, 0.08);
}

.patient-photo-item img {
    width: 100%;
    aspect-ratio: 1/1;
    object-fit: cover;
}

/* Double Image Stack/Visual Block */
.double-image-stack {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    width: 100%;
}

.img-stack-item {
    width: 100%;
    aspect-ratio: 4/5;
    object-fit: cover;
    border: 1px solid rgba(239, 231, 216, 0.08);
}

/* ==========================================================================
   SPECIFIC SECTIONS (LIVRO & PALESTRAS & CONTATOS)
   ========================================================================== */
/* Book buttons */
.book-buttons-container {
    display: flex;
    gap: 2rem;
    justify-content: center;
    margin-top: 2rem;
    flex-wrap: wrap;
}

/* Lectures simple list styling */
.theme-heading {
    font-weight: 600;
    color: var(--color-text-light) !important; /* Corrigido contraste com o fundo escuro */
    margin-top: 2rem;
    margin-bottom: 1rem !important;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 1.2rem !important;
    font-family: var(--font-body);
}

.simple-topic-list {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.simple-topic-list li {
    font-family: var(--font-heading);
    font-size: 2.2rem; /* Aumentado e estilizado para excelente legibilidade */
    font-weight: 400;
    color: var(--color-text-light); /* Excelente contraste */
    font-style: italic;
    text-transform: lowercase;
}

.audience-note {
    font-size: 1.15rem !important;
    color: var(--color-gray-sof) !important;
    text-align: center !important;
    font-style: italic;
}

/* Contacts layout */
.contact-block {
    border-top: 1px solid rgba(239, 231, 216, 0.05);
    background-color: #0b0b0b;
}

.contacts-list {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin: 2.5rem 0;
    align-items: center;
}

.contact-line {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.3rem;
    text-align: center;
}

.contact-label {
    font-size: 0.85rem;
    color: var(--color-gray-sof);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.contact-value {
    font-family: var(--font-heading);
    font-size: 1.7rem;
    color: var(--color-text-light);
}

.link-accent:hover {
    color: var(--color-teal-cava);
}

.link-underline {
    font-size: 1.25rem;
    word-break: break-all;
    text-decoration: underline;
}

.link-underline:hover {
    color: var(--color-teal-cava);
}

.social-links-grid {
    display: flex;
    justify-content: center;
    gap: 3.5rem;
    margin-top: 3rem;
}

.social-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--color-gray-sof);
}

.social-item svg {
    transition: var(--transition-fast);
}

.social-item span {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.social-item:hover {
    color: var(--color-text-light);
}

.social-item:hover svg {
    transform: translateY(-3px);
    color: var(--color-teal-cava);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
    background-color: var(--color-bg-dark);
    color: var(--color-gray-sof);
    padding: 2.5rem 0;
    border-top: 1px solid rgba(239, 231, 216, 0.03);
    text-align: center;
}

.footer p {
    font-size: 0.85rem;
    letter-spacing: 0.05em;
}

/* ==========================================================================
   SCROLL-DRIVEN ANIMATION STYLING
   ========================================================================== */
.reveal-on-scroll {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s cubic-bezier(0.25, 1, 0.5, 1), 
                transform 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

.reveal-on-scroll.revealed {
    opacity: 1;
    transform: translateY(0);
}



/* ==========================================================================
   RESPONSIVE DESIGN (MEDIA QUERIES)
   ========================================================================== */
@media (max-width: 1024px) {
    html {
        font-size: 15px;
    }
    
    .hero-name {
        font-size: 4.5rem;
    }
    
    .paragraph-large {
        font-size: 1.5rem;
    }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        height: 100vh;
        background-color: var(--color-bg-dark);
        flex-direction: column;
        justify-content: center;
        gap: 3rem;
        box-shadow: -10px 0 30px rgba(0, 0, 0, 0.5);
        transition: var(--transition-smooth);
        z-index: 999;
    }

    .nav-menu.active {
        right: 0;
    }

    .menu-toggle.active .bar:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }

    .menu-toggle.active .bar:nth-child(2) {
        transform: translateY(-8px) rotate(-45deg);
    }
    
    .header-container {
        padding: 1rem 1.5rem;
    }
    
    .hero-name {
        font-size: 3.5rem;
    }
    
    .paragraph-large {
        font-size: 1.35rem;
        text-align: left;
    }
    
    .evolution-main-display, 
    .patient-row, 
    .double-image-stack {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .marquee-track img {
        height: 150px;
        width: 150px;
    }
    
    .social-links-grid {
        gap: 2rem;
    }
    
    .book-buttons-container {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }
    
    .btn {
        width: 100%;
    }
    
    .text-section {
        padding: 2rem 0;
    }
    
    .image-section {
        padding: 1rem 0;
    }
}