:root {
    /* Colors - More Vibrant & Sophisticated Earthy Palette */
    --color-primary: #12351f;    /* Deeper Forest Green */
    --color-primary-light: #1e5334;
    --color-accent: #a67c52;     /* Rich Gold/Brown */
    --color-bg: #fdfdfd;          /* Pure White for depth */
    --color-bg-alt: #f1f5f2;      /* Soft Sage Gray */
    --color-text: #0f172a;        /* Near Black */
    --color-text-muted: #475569;
    --color-white: #ffffff;
    
    /* Typography */
    --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
    --font-serif: 'Playfair Display', Georgia, serif;
    
    /* Spacing */
    --container-width: 1200px;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
    --spacing-xl: 8rem;
    
    /* Shadows & Transitions */
    --shadow-sm: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

/* Typography Helpers */
h1, h2, h3 {
    font-weight: 800;
    line-height: 1.1;
    color: var(--color-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.8rem, 9vw, 4.5rem); }
h2 { font-size: clamp(2.2rem, 6vw, 2.8rem); margin-bottom: var(--spacing-md); }

.serif { font-family: var(--font-serif); }
.italic { font-style: italic; }
.text-center { text-align: center; }

/* Layout Elements */
.container {
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.narrow-content {
    max-width: 800px;
}

section {
    padding: var(--spacing-xl) 0;
}

/* Header & Nav states */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    padding: 1rem 0;
    transition: var(--transition);
}

.header-initial {
    background: transparent;
    border-bottom: 1px solid transparent;
}

.header-scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    padding: 0.6rem 0;
    box-shadow: var(--shadow-sm);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-brand {
    display: flex;
    align-items: center;
    gap: 1.25rem;
}

.nav-logo {
    height: 50px;
    width: auto;
    transition: var(--transition);
}

.header-initial .nav-logo {
    /* No filter, keep original colors as requested */
}

.logo {
    font-weight: 900;
    color: var(--color-primary);
    text-decoration: none;
    font-size: 1.3rem;
    letter-spacing: -1px;
    text-transform: uppercase;
}

.header-initial .logo {
    color: white;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: var(--spacing-md);
}

.nav-links a {
    text-decoration: none;
    color: var(--color-text-muted);
    font-weight: 600;
    transition: var(--transition);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.header-initial .nav-links a {
    color: rgba(255, 255, 255, 0.8);
}

nav a:hover, .header-initial nav a:hover {
    color: var(--color-accent);
}

/* Burger Menu Styles */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 30px;
    height: 24px;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 10;
}

.burger-menu span {
    width: 30px;
    height: 3px;
    background: var(--color-primary);
    border-radius: 10px;
    transition: all 0.3s linear;
    position: relative;
    transform-origin: 1px;
}

.header-initial .burger-menu span {
    background: white;
}

.burger-menu.active span:nth-child(1) { transform: rotate(45deg); }
.burger-menu.active span:nth-child(2) { opacity: 0; }
.burger-menu.active span:nth-child(3) { transform: rotate(-45deg); }

/* Hero Section */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    background-color: var(--color-primary);
    color: var(--color-white);
    overflow: hidden;
    padding-top: 0; /* Header is invisible here or handled */
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.45;
    filter: brightness(0.5);
    transform: scale(1.05);
    animation: slowZoom 20s infinite alternate;
}

@keyframes slowZoom {
    from { transform: scale(1); }
    to { transform: scale(1.1); }
}

.hero-content-wrapper {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 1000px;
    padding: 0 var(--spacing-md);
}

.hero-title {
    color: var(--color-white);
    margin-bottom: var(--spacing-md);
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

.hero-info {
    font-size: 1.4rem;
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
    color: rgba(255,255,255,0.95);
}

.motto {
    font-family: var(--font-serif);
    font-style: italic;
    font-size: 1.8rem;
    color: var(--color-accent);
    margin-bottom: var(--spacing-lg);
}

.hero-cta-group {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
}

.cta-btn {
    display: inline-block;
    padding: 1rem 2.5rem;
    background-color: var(--color-accent);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-weight: 700;
    transition: var(--transition);
    border: 2px solid var(--color-accent);
    cursor: pointer;
    text-transform: uppercase;
    font-size: 0.9rem;
    letter-spacing: 0.1em;
}

.cta-btn.secondary {
    background-color: transparent;
    border-color: white;
}

.cta-btn:hover {
    background-color: var(--color-primary-light);
    border-color: var(--color-primary-light);
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.cta-btn.secondary:hover {
    background-color: white;
    color: var(--color-primary);
}

/* Scroll Indicator Arrow - Fixed to the side */
.scroll-indicator {
    position: fixed;
    bottom: 3rem;
    right: 3rem;
    z-index: 1001;
    animation: bounce 2s infinite;
    cursor: pointer;
    color: var(--color-accent);
    background: rgba(255,255,255,0.2);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255,255,255,0.3);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.scroll-indicator svg {
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.3));
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {transform: translateY(0);}
    40% {transform: translateY(-10px);}
    60% {transform: translateY(-5px);}
}

/* Poster Section */
.poster-section {
    background-color: var(--color-bg-alt);
    padding: var(--spacing-xl) 0;
}

.poster-card {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    padding: var(--spacing-md);
    border-radius: 24px;
    box-shadow: var(--shadow-lg);
    transform: rotate(-1deg);
    transition: var(--transition);
}

.poster-card:hover {
    transform: rotate(0deg) scale(1.02);
}

.poster-frame {
    border-radius: 12px;
    overflow: hidden;
    line-height: 0;
}

.poster-frame img {
    width: 100%;
    cursor: zoom-in;
    transition: var(--transition);
}

.poster-frame img:hover {
    filter: brightness(1.05);
}

/* Info Section (Escrito Entero) */
.info-section {
    background-color: var(--color-white);
}

.section-tag {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
    display: block;
}

.manifesto-full-text {
    font-size: 1.4rem;
    color: var(--color-text-muted);
    line-height: 1.8;
}

.manifesto-full-text p {
    margin-bottom: 2rem;
}

.editorial-box {
    margin: 4rem 0;
    padding: 3rem;
    background: var(--color-bg-alt);
    border-radius: 32px;
    color: var(--color-primary);
    font-weight: 600;
    position: relative;
}

.editorial-box::before {
    content: "“";
    position: absolute;
    top: 0;
    left: 2rem;
    font-size: 8rem;
    opacity: 0.1;
    font-family: var(--font-serif);
}

.accent-text {
    color: var(--color-primary);
    font-weight: 700;
    border-bottom: 2px solid var(--color-accent);
}

/* Download Cards */
.downloads {
    background-color: var(--color-bg-alt);
}

.download-grid-center {
    display: flex;
    justify-content: center;
    margin-top: var(--spacing-lg);
}

.premium-card {
    background: var(--color-white);
    padding: var(--spacing-lg);
    border-radius: 32px;
    box-shadow: var(--shadow-md);
    max-width: 500px;
    text-align: center;
    transition: var(--transition);
}

.premium-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.card-icon {
    margin-bottom: var(--spacing-md);
    color: var(--color-primary);
    background: var(--color-bg-alt);
    width: 80px;
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 20px;
    margin-left: auto;
    margin-right: auto;
}

.premium-card h3 {
    margin-bottom: var(--spacing-sm);
}

.premium-card p {
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
}

.download-action {
    width: 100%;
}

/* Footer */
footer {
    background-color: var(--color-primary);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-lg) 0;
}

.footer-grid {
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-logo-img {
    height: 60px;
    width: auto;
    background: white;
    padding: 5px;
    border-radius: 8px;
}

.footer-org-name {
    font-size: 1.5rem;
    font-weight: 900;
    color: white;
}

.footer-contact {
    text-align: right;
}

.footer-contact p {
    margin-bottom: 0.5rem;
}

.copyright {
    margin-top: var(--spacing-md);
    text-align: center;
    font-size: 0.8rem;
}

/* Responsive */
@media (max-width: 768px) {
    .burger-menu { display: flex; }
    
    .nav-links {
        position: fixed;
        left: -100%;
        top: 0;
        flex-direction: column;
        background: var(--color-primary);
        width: 100%;
        height: 100vh;
        text-align: center;
        transition: 0.3s;
        box-shadow: 0 10px 27px rgba(0, 0, 0, 0.05);
        justify-content: center;
        z-index: 9;
    }

    .nav-links.active {
        left: 0;
    }

    .nav-links li {
        margin: 2.5rem 0;
    }

    .nav-links a {
        font-size: 1.5rem;
        color: white !important;
    }

    .hero-cta-group { flex-direction: column; }
    .hero { padding-top: 2rem; text-align: center; } /* No header overlap here */
    .hero-title { font-size: 2.2rem; }
    .hero-info { font-size: 1.1rem; }
    .motto { font-size: 1.3rem; }
    
    .footer-grid { flex-direction: column; align-items: center; text-align: center; gap: var(--spacing-md); }
    .footer-contact { text-align: center; }
    .manifesto-full-text { font-size: 1.2rem; }
    section { padding: var(--spacing-lg) 0; }
    .scroll-indicator { right: 1.5rem; bottom: 1.5rem; width: 50px; height: 50px; }
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    z-index: 2000;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(18, 53, 31, 0.96);
    backdrop-filter: blur(12px);
    justify-content: center;
    align-items: center;
    padding: var(--spacing-md);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.lightbox.active {
    display: flex;
    opacity: 1;
}

.lightbox-content-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    max-width: 90%;
    max-height: 90%;
}

.lightbox-img {
    max-width: 100%;
    max-height: 75vh;
    border-radius: 12px;
    box-shadow: 0 0 60px rgba(0,0,0,0.6);
    object-fit: contain;
}

.close-lightbox {
    position: absolute;
    top: 2rem;
    right: 2rem;
    color: white;
    font-size: 4rem;
    font-weight: 200;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1;
    user-select: none;
}

.close-lightbox:hover {
    transform: rotate(90deg);
    color: var(--color-accent);
}

.lightbox-actions {
    animation: slideUp 0.5s ease forwards;
}

@keyframes slideUp {
    from { transform: translateY(20px); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}