:root {
    /* Colors */
    --primary: #38bdf8;
    --primary-dark: #0284c7;
    --bg-dark: #0f172a;
    --bg-card: rgba(30, 41, 59, 0.7);
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --accent: #fbbf24;
    --success: #10b981;
    
    /* Spacing */
    --section-padding: 8rem 1.5rem;
    
    /* Glassmorphism */
    --glass: rgba(15, 23, 42, 0.85);
    --glass-border: rgba(255, 255, 255, 0.1);
    --blur: blur(16px);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
    font-weight: 700;
}

/* Glassmorphism Utility */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: var(--blur);
    border: 1px solid var(--glass-border);
    border-radius: 1rem;
    padding: 2rem;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1200;
    background: var(--glass);
    backdrop-filter: var(--blur);
    border-bottom: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-weight: 800;
    font-size: 1.4rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--primary);
    text-decoration: none;
    z-index: 1100;
}

.logo img {
    height: 45px;
    border-radius: 50%;
}

/* Hamburger Menu */
.menu-trigger {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    cursor: pointer;
    z-index: 1100;
    padding: 0.5rem 1rem;
    border-radius: 2rem;
    background: rgba(255,255,255,0.05);
    border: 1px solid var(--glass-border);
    transition: all 0.3s ease;
}

.menu-trigger:hover {
    background: rgba(56, 189, 248, 0.1);
    border-color: var(--primary);
}

.hamburger {
    width: 24px;
    height: 18px;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.hamburger span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--text-main);
    border-radius: 2px;
    transition: all 0.3s ease;
}

/* Language Flags */
.lang-flags {
    display: flex;
    gap: 1.2rem;
    align-items: center;
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.05);
    padding: 0.5rem 1.5rem;
    border-radius: 2rem;
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.flag {
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    filter: grayscale(40%) opacity(0.8);
    user-select: none;
}

.flag:hover {
    transform: scale(1.2);
    filter: grayscale(0%) opacity(1);
}

/* Hide Google Translate UI */
.goog-te-banner-frame.skiptranslate { display: none !important; }
body { top: 0px !important; }
.goog-tooltip { display: none !important; }
.goog-tooltip:hover { display: none !important; }
.goog-text-highlight { background-color: transparent !important; border: none !important; box-shadow: none !important; }
#google_translate_element { display: none; }

/* Overlay Menu */
.menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(15, 23, 42, 0.98);
    backdrop-filter: blur(20px);
    z-index: 1050;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.5s cubic-bezier(0.77, 0, 0.175, 1);
}

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

.menu-content {
    max-width: 1000px;
    width: 100%;
    padding: 2rem;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.menu-list {
    list-style: none;
}

.menu-list li {
    margin-bottom: 1rem;
    overflow: hidden;
}

.menu-list a {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-main);
    text-decoration: none;
    display: block;
    transition: all 0.3s ease;
    transform: translateY(100%);
}

.menu-overlay.active .menu-list a {
    transform: translateY(0);
}

.menu-list a:hover {
    color: var(--primary);
    padding-left: 1rem;
}

.menu-list a span {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-right: 1rem;
    font-weight: 400;
}

/* Scroll-driven Canvas Hero Section */
.canvas-container {
    height: 300vh;
    position: relative;
    background-color: #000;
}

canvas {
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    object-fit: cover;
    display: block;
    z-index: 1;
}

/* Vignette overlay to darken the video and improve text contrast */
.canvas-container::after {
    content: '';
    position: sticky;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    display: block;
    z-index: 2;
    background: radial-gradient(circle, rgba(15, 23, 42, 0.2) 0%, rgba(15, 23, 42, 0.8) 100%);
    pointer-events: none;
}

.hero-content-overlay {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    z-index: 10;
    width: 100%;
    max-width: 900px;
    padding: 2rem;
    pointer-events: none;
    /* Subtle glow behind the text container */
    background: radial-gradient(circle, rgba(15, 23, 42, 0.6) 0%, rgba(15, 23, 42, 0) 70%);
}

.hero-content-overlay h1 {
    font-size: clamp(2.5rem, 8vw, 5rem);
    margin-bottom: 1rem;
    background: linear-gradient(to right, #ffffff, var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.1;
    /* Use drop-shadow for clipped text, as text-shadow can bleed through */
    filter: drop-shadow(0 4px 15px rgba(0, 0, 0, 0.9)) drop-shadow(0 0 40px rgba(0, 0, 0, 0.8));
}

.hero-content-overlay p {
    font-size: 1.25rem;
    font-weight: 500;
    color: #f8fafc;
    margin: 0 auto 2.5rem;
    text-shadow: 0 4px 12px rgba(0,0,0,0.9), 0 0 20px rgba(0,0,0,0.8);
}

.hero-content-overlay .btn-primary {
    pointer-events: auto;
}

.btn-primary {
    background: var(--primary);
    color: var(--bg-dark);
    padding: 1.2rem 2.5rem;
    border-radius: 3rem;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s ease;
    display: inline-block;
    border: none;
    cursor: pointer;
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(56, 189, 248, 0.4);
}

/* Page Headers for subpages */
.page-header {
    padding-top: 12rem;
    padding-bottom: 6rem;
    background: linear-gradient(to bottom, rgba(15, 23, 42, 0.6), var(--bg-dark)), url('images/ebc-landscape.jpg');
    background-size: cover;
    background-position: center;
    text-align: center;
}

/* Section Common */
section {
    padding: var(--section-padding);
}

#intro {
    padding-bottom: 3rem;
}

#guias {
    padding-top: 3rem;
}

.section-title {
    text-align: center;
    margin-bottom: 5rem;
}

.section-title h2 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    margin-bottom: 1.5rem;
}

.section-title .underline {
    width: 80px;
    height: 4px;
    background: var(--primary);
    margin: 0 auto;
    border-radius: 2px;
}

/* Intro Grid */
.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
}

.intro-image img {
    width: 100%;
    border-radius: 1.5rem;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
}

/* Mosaic Grid */
.mosaic-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1.5rem;
    margin-top: 3rem;
}

.mosaic-item {
    position: relative;
    height: 300px;
    border-radius: 1rem;
    overflow: hidden;
    text-decoration: none;
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid var(--glass-border);
}

.mosaic-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.8s ease;
}

.mosaic-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.2));
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    transition: background 0.3s ease;
}

.mosaic-item h3 {
    color: white;
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    transform: translateY(0);
    transition: transform 0.3s ease;
}

.mosaic-item p {
    color: var(--primary);
    font-size: 0.9rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    opacity: 0.8;
}

.mosaic-item:hover {
    transform: translateY(-10px);
    border-color: var(--primary);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
}

.mosaic-item:hover img {
    transform: scale(1.1);
}

.mosaic-item:hover .mosaic-overlay {
    background: linear-gradient(to top, var(--bg-dark), rgba(15, 23, 42, 0.4));
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
}

/* Timeline */
.timeline {
    position: relative;
    max-width: 900px;
    margin: 0 auto;
}

.timeline::before {
    content: '';
    position: absolute;
    left: 50%;
    width: 2px;
    height: 100%;
    background: var(--glass-border);
    transform: translateX(-50%);
}

.timeline-item {
    margin-bottom: 4rem;
    position: relative;
    width: 50%;
    padding: 0 3rem;
}

.timeline-item:nth-child(odd) {
    left: 0;
    text-align: right;
}

.timeline-item:nth-child(even) {
    left: 50%;
}

.timeline-dot {
    position: absolute;
    top: 5px;
    width: 20px;
    height: 20px;
    background: var(--primary);
    border: 4px solid var(--bg-dark);
    border-radius: 50%;
    z-index: 10;
}

.timeline-item:nth-child(odd) .timeline-dot {
    right: -10px;
}

.timeline-item:nth-child(even) .timeline-dot {
    left: -10px;
}

/* Content Blocks for Articles */
.content-block {
    max-width: 850px;
    margin: 0 auto 4rem;
}

.content-block p {
    margin-bottom: 1.8rem;
    font-size: 1.15rem;
    color: var(--text-muted);
}

.content-block h3 {
    margin: 3rem 0 1.2rem;
    font-size: 2rem;
    color: var(--text-main);
}

.content-block ul {
    margin-bottom: 2rem;
    padding-left: 1.5rem;
    color: var(--text-muted);
}

.content-block li {
    margin-bottom: 0.8rem;
}

/* Equipment List */
.equipment-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.equipment-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem;
    background: var(--bg-card);
    border-radius: 0.8rem;
    border: 1px solid var(--glass-border);
    transition: transform 0.3s ease;
}

.equipment-item:hover {
    transform: translateY(-5px);
    border-color: var(--primary);
}

/* Footer */
footer {
    padding: 6rem 0;
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

footer p {
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 992px) {
    .intro-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .timeline::before {
        left: 20px;
    }
    
    .timeline-item {
        width: 100%;
        padding-left: 50px;
        text-align: left !important;
    }
    
    .timeline-item:nth-child(even) {
        left: 0;
    }
    
    .timeline-dot {
        left: 10px !important;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 5rem 1rem;
    }
    
    .mosaic-grid {
        grid-template-columns: 1fr;
    }
    
    canvas, .canvas-container::after {
        height: 60vh;
    }
}