:root {
    --bg-color: #0B0E14; 
    --panel-bg: rgba(16, 22, 34, 0.7); 
    --text-main: #E2E8F0;
    --text-muted: #94A3B8;
    --accent-blue: #00E5FF; 
    --accent-red: #FF2A2A; 
    --grid-color: rgba(0, 229, 255, 0.03);
    --font-mono: 'Fira Code', monospace;
    --font-sans: 'Inter', sans-serif;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-sans);
    margin: 0;
    padding: 0;
    background-image:
        linear-gradient(var(--grid-color) 1px, transparent 1px),
        linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
    background-size: 40px 40px;
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.tech-header {
    padding: 3rem 1rem 2rem 1rem;
    text-align: center;
    border-bottom: 1px solid rgba(0, 229, 255, 0.2);
    background: linear-gradient(180deg, rgba(0,66,130,0.15) 0%, rgba(11,14,20,1) 100%);
}

.senai-logo {
    max-width: 250px;
    margin: 0 auto 1.5rem auto;
    display: block;
    filter: drop-shadow(0 0 10px rgba(255,255,255,0.1));
}

h1 {
    font-family: var(--font-mono);
    color: var(--accent-blue);
    font-size: 2.5rem;
    margin: 0;
    letter-spacing: -1px;
    text-shadow: 0 0 15px rgba(0, 229, 255, 0.3);
}

.cursor { animation: blink 1s step-start infinite; }
@keyframes blink { 50% { opacity: 0; } }

.instructor {
    font-family: var(--font-mono);
    color: var(--accent-red);
    margin-top: 0.5rem;
    font-size: 1.1rem;
    font-weight: 600;
}

.container {
    flex: 1;
    max-width: 1200px;
    width: 100%;
    margin: 3rem auto;
    padding: 0 1rem;
    box-sizing: border-box;
}

/* Tela de Intro */
.intro-container {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.intro-container h2 {
    font-family: var(--font-mono);
    color: var(--accent-blue);
    margin-bottom: 2rem;
}

.class-selection {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn-class {
    background: transparent;
    border: 2px solid var(--accent-blue);
    color: var(--text-main);
    padding: 1.5rem 2.5rem;
    font-size: 1.2rem;
    font-family: var(--font-mono);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
    flex: 1;
    min-width: 200px;
}

.btn-class:hover {
    background: rgba(0, 229, 255, 0.1);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.2);
    transform: translateY(-3px);
}

/* Grade e Cards */
.hub-header {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 2rem;
    border-bottom: 1px solid rgba(0, 229, 255, 0.2);
    padding-bottom: 1rem;
}

.hub-title {
    font-family: var(--font-mono);
    color: #fff;
    margin: 0;
    font-size: 1.5rem;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.card {
    background: var(--panel-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-left: 4px solid var(--accent-red);
    border-radius: 8px;
    padding: 2rem;
    backdrop-filter: blur(10px);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    position: relative;
    overflow: hidden;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.05), transparent);
    transition: 0.5s;
}

.card:hover {
    transform: translateY(-5px);
    border-left-color: var(--accent-blue);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4), 0 0 15px rgba(0, 229, 255, 0.1);
}

.card:hover::before { left: 100%; }

.card h2 {
    font-family: var(--font-mono);
    color: #ffffff;
    margin-top: 0;
    font-size: 1.3rem;
}

.card p {
    flex-grow: 1;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.btn-ler-mais {
    margin-top: 1.5rem;
    color: var(--accent-blue);
    font-family: var(--font-mono);
    font-size: 0.9rem;
    text-transform: uppercase;
}

.hidden { display: none !important; }

.back-btn {
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    font-family: var(--font-mono);
    padding: 0.6rem 1.2rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    font-size: 0.85rem;
}

#project-view .back-btn {
    margin-bottom: 2rem;
}

.back-btn:hover {
    background: rgba(0, 229, 255, 0.1);
    box-shadow: 0 0 10px rgba(0, 229, 255, 0.2);
}

.glass-panel {
    background: var(--panel-bg);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 3rem;
    backdrop-filter: blur(15px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.glass-panel h2 {
    font-family: var(--font-mono);
    color: #ffffff;
    font-size: 2rem;
    margin-top: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 1rem;
}

.project-authors {
    font-family: var(--font-mono);
    color: var(--accent-blue);
    background: rgba(0, 229, 255, 0.05);
    padding: 0.8rem 1.2rem;
    border-left: 3px solid var(--accent-blue);
    border-radius: 4px;
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
    letter-spacing: 0.5px;
    display: inline-block;
    margin-top: 1rem;
}

.project-content {
    display: flex;
    flex-wrap: wrap;
    gap: 3rem;
    margin-top: 2rem;
}

.project-text { flex: 1; min-width: 300px; }
.project-text p { color: var(--text-main); font-size: 1.1rem; line-height: 1.8; margin-bottom: 1.5rem; }

.project-media { 
    flex: 1; 
    min-width: 300px; 
    text-align: center; 
    display: flex; 
    align-items: center; 
    justify-content: center;
}

.project-media img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    border: 1px solid rgba(0, 229, 255, 0.2);
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.1);
}

.btn-acessar {
    display: inline-block;
    background: transparent;
    color: var(--accent-red);
    border: 2px solid var(--accent-red);
    padding: 1rem 2rem;
    text-decoration: none;
    border-radius: 4px;
    font-weight: bold;
    font-family: var(--font-mono);
    margin-top: 1rem;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-acessar:hover {
    background: var(--accent-red);
    color: #fff;
    box-shadow: 0 0 15px rgba(255, 42, 42, 0.3);
}

.project-presentation {
    margin-top: 3rem;
    padding-top: 2rem;
    border-top: 1px dashed rgba(0, 229, 255, 0.2);
}

.presentation-title {
    font-family: var(--font-mono);
    color: var(--accent-blue);
    font-size: 1.2rem;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.presentation-frame {
    width: 100%;
    height: 600px;
    border: 1px solid rgba(0, 229, 255, 0.2);
    border-radius: 8px;
    box-shadow: 0 0 20px rgba(0, 229, 255, 0.05);
    background-color: #ffffff; 
}

/* Footer (Rodapé) */
.tech-footer {
    background: rgba(11, 14, 20, 0.95);
    border-top: 1px solid rgba(0, 229, 255, 0.2);
    padding: 2rem 1rem;
    margin-top: 3rem;
    text-align: center;
}

.footer-content {
    max-width: 800px;
    margin: 0 auto;
    color: var(--text-muted);
    font-size: 0.95rem;
}

.footer-content p { margin: 0.3rem 0; }
.footer-content strong { color: var(--accent-blue); font-family: var(--font-mono); }

@media (max-width: 768px) {
    .presentation-frame { height: 400px; }
    .class-selection { flex-direction: column; }
    .hub-header { flex-direction: column; align-items: flex-start; gap: 1rem; }
}