:root {
    --bg: #0f172a;
    --card: rgba(30, 41, 59, 0.7);
    --accent: linear-gradient(135deg, #6366f1 0%, #a855f7 100%);
    --text: #ffffff; 
    --text-dim: #e2e8f0;
}

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

body {
    background-color: var(--bg);
    color: var(--text);
    font-family: 'Inter', sans-serif;
    height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow: hidden;
}

.blur-bg {
    position: absolute;
    width: 400px; height: 400px;
    background: #6366f1;
    filter: blur(180px);
    z-index: -1;
    top: 5%; left: 5%;
    opacity: 0.3;
}

.main-card {
    background: var(--card);
    backdrop-filter: blur(10px);
    width: 98%; 
    max-width: 1550px; 
    height: 85vh;      
    min-height: 700px; 
    border-radius: 24px;
    border: 1px solid rgba(255,255,255,0.1);
    display: flex;
    box-shadow: 0 25px 50px -12px rgba(0,0,0,0.5);
}

.sidebar {
    width: 320px; 
    padding: 60px 40px;
    border-right: 1px solid rgba(255,255,255,0.1);
    display: flex;
    flex-direction: column;
    align-items: center; 
}

.photo-frame {
    width: 220px; height: 220px; 
    background: var(--accent);
    border-radius: 40px;
    margin-bottom: 30px;
    display: flex; align-items: center; justify-content: center;
    font-weight: 800; font-size: 1.8rem;
    box-shadow: 0 10px 25px rgba(99, 102, 241, 0.4);
    overflow: hidden; 
}

.profile-photo {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.sidebar h1 { 
    font-size: 2rem; 
    margin-bottom: 40px; 
    text-align: center;
}

.nav-menu { 
    display: flex; 
    flex-direction: column; 
    gap: 20px; 
    width: 100%; 
}

.nav-menu button {
    background: none; border: none; color: var(--text-dim);
    text-align: left; font-size: 1.2rem; 
    cursor: pointer;
    transition: all 0.3s ease; padding: 12px 0;
    position: relative;
}

.nav-menu button:hover, .nav-menu button.active {
    color: var(--text);
    padding-left: 15px;
}

.nav-menu button.active::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%);
    width: 5px;
    height: 20px;
    background: var(--accent);
    border-radius: 3px;
}

.content-area {
    flex: 1;
    padding: 60px 80px; 
    overflow-y: auto;
    animation: fadeIn 0.5s ease-out;
}

.content-area h2 {
    margin-bottom: 25px; 
    font-size: 2.8rem;    
    font-weight: 800;
    letter-spacing: -1px;
}

.content-area p, .content-area ul {
    line-height: 1.9; 
    color: var(--text-dim);
    font-size: 1.3rem; 
}

.footer-credits {
    margin-top: auto;
    padding-top: 40px;
    border-top: 1px solid rgba(255,255,255,0.05);
    width: 100%;
    text-align: center;
}

.footer-credits p {
    font-size: 0.85rem;
    color: var(--text-dim);
    opacity: 0.7;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(15px); }
    to { opacity: 1; transform: translateY(0); }
}

.projetos-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 20px;
    margin-top: 20px;
}

.projeto-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 16px;
    padding: 25px;
    display: flex;
    flex-direction: column;
    transition: all 0.3s ease;
}

.projeto-card:hover {
    background: rgba(255, 255, 255, 0.08);
    transform: translateY(-5px);
    border-color: #6366f1;
}

.card-header {
    display: flex;
    gap: 8px;
    margin-bottom: 15px;
}

.tag {
    background: var(--accent);
    font-size: 0.7rem;
    padding: 3px 10px;
    border-radius: 50px;
    font-weight: 600;
}

.projeto-card h3 {
    font-size: 1.4rem !important;
    margin-bottom: 10px;
}

.projeto-card p {
    font-size: 1rem !important;
    line-height: 1.5 !important;
    margin-bottom: 20px;
    flex-grow: 1;
}

.btn-projeto {
    text-decoration: none;
    color: white;
    font-size: 0.9rem;
    font-weight: 600;
    text-align: center;
    padding: 10px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    transition: 0.3s;
}

.btn-projeto:hover {
    background: white;
    color: var(--bg);
}

.tech-container {
    display: flex;
    justify-content: space-between;
    gap: 30px;
    margin-top: 20px;
    align-items: flex-start;
}

.tech-category {
    flex: 1;
    background: rgba(255, 255, 255, 0.02);
    padding: 20px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.tech-category h4 {
    font-size: 0.9rem;
    color: #6366f1;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    display: block;
    padding-bottom: 8px;
    text-align: center;
}

.tech-stack {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    justify-items: center;
}

.tech-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    transition: transform 0.3s ease;
}

.tech-item:hover {
    transform: translateY(-5px);
}

.tech-item img {
    width: 45px;
    height: 45px;
    border-radius: 10px;
}

.tech-item span {
    font-size: 0.7rem;
    color: var(--text-dim);
    font-weight: 600;
    text-align: center;
}

@media (max-width: 1024px) {
    .tech-container {
        flex-direction: column;
        gap: 20px;
    }
}

@media (max-width: 768px) {
    body {
        overflow: auto;
        height: auto;
        padding: 20px 10px;
    }

    .main-card {
        flex-direction: column; 
        height: auto;
        min-height: unset;
        width: 100%;
        border-radius: 16px;
    }

    .sidebar {
        width: 100%;
        padding: 30px 20px;
        border-right: none;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }

    .photo-frame {
        width: 180px;
        height: 180px;
        margin-bottom: 15px;
        border-radius: 32px;
    }

    .sidebar h1 {
        font-size: 1.6rem;
        margin-bottom: 25px;
    }

    .nav-menu {
        flex-direction: row; 
        flex-wrap: wrap;
        justify-content: center;
        gap: 10px;
    }

    .nav-menu button {
        font-size: 0.9rem;
        padding: 8px 12px;
        text-align: center;
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 8px;
    }

    .nav-menu button:hover, .nav-menu button.active {
        padding-left: 12px;
        background: rgba(255, 255, 255, 0.05);
    }

    .nav-menu button.active::before {
        display: none;
    }

    .content-area {
        padding: 30px 20px;
    }

    .content-area h2 {
        font-size: 1.8rem;
        text-align: center;
    }

    .content-area p, .content-area ul {
        font-size: 1.1rem;
        text-align: center;
    }

    .tech-stack {
        justify-content: center; 
    }

    .projetos-grid {
        grid-template-columns: 1fr; 
    }

    .footer-credits {
        padding-top: 20px;
        margin-top: 20px;
    }
}