/* ---------- RESET & BASE ---------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary: #0b2b4a;
    --primary-light: #1a4a6e;
    --primary-dark: #071d30;
    --accent: #e8a838;
    --accent-light: #f5d48a;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --white: #ffffff;
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    --shadow-hover: 0 20px 60px rgba(0, 0, 0, 0.12);
    --radius: 16px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    background: var(--gray-50);
    color: var(--gray-800);
    line-height: 1.6;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    display: block;
}

.container {
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

.section-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--accent);
    background: rgba(232, 168, 56, 0.12);
    padding: 4px 16px;
    border-radius: 40px;
    margin-bottom: 12px;
    border: 1px solid rgba(232, 168, 56, 0.20);
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 2.6rem;
    font-weight: 700;
    color: var(--primary);
    line-height: 1.2;
}

    .section-title span {
        color: var(--accent);
    }

.section-subtitle {
    font-size: 1.1rem;
    color: var(--gray-600);
    max-width: 620px;
    margin-top: 12px;
}

.text-center {
    text-align: center;
}

.mx-auto {
    margin-left: auto;
    margin-right: auto;
}

/* ---------- BUTTONS ---------- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 14px 32px;
    border-radius: 60px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    background: var(--white);
    color: var(--primary);
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.06);
}

.btn-primary {
    background: var(--primary);
    color: var(--white);
    box-shadow: 0 8px 24px rgba(11, 43, 74, 0.25);
}

    .btn-primary:hover {
        background: var(--primary-light);
        transform: translateY(-3px);
        box-shadow: 0 12px 32px rgba(11, 43, 74, 0.35);
    }

.btn-accent {
    background: var(--accent);
    color: var(--primary);
    box-shadow: 0 8px 24px rgba(232, 168, 56, 0.30);
}

    .btn-accent:hover {
        background: #d99a2e;
        transform: translateY(-3px);
        box-shadow: 0 12px 32px rgba(232, 168, 56, 0.40);
    }

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(4px);
}

    .btn-outline:hover {
        background: var(--white);
        color: var(--primary);
        border-color: var(--white);
        transform: translateY(-3px);
    }

/* ---------- NAVBAR ---------- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
    background: transparent;
}

    .navbar.scrolled {
        background: rgba(11, 43, 74, 0.96);
        backdrop-filter: blur(12px);
        padding: 10px 0;
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.15);
    }

    .navbar .container {
        display: flex;
        align-items: center;
        justify-content: space-between;
    }

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: 'Playfair Display', serif;
    font-weight: 800;
    font-size: 4.3rem;
    color: var(--white);
}

.logo-icon {
    background: var(--accent);
    color: var(--primary);
    width: 38px;
    height: 38px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4.2rem;
    font-weight: 700;
}

.logo-link {
    display: inline-block;
    text-decoration: none;
}

    .logo-link img {
        display: block;
        max-height: 80px;
        width: auto;
        /* Opcional: contraste para fundo transparente */
        /* background: rgba(255,255,255,0.1);
    padding: 4px 8px;
    border-radius: 8px; */
    }
.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

    .nav-links a {
        color: rgba(255, 255, 255, 0.80);
        font-weight: 500;
        font-size: 0.9rem;
        transition: var(--transition);
        position: relative;
    }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -4px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent);
            transition: var(--transition);
        }

        .nav-links a:hover {
            color: var(--white);
        }

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

.nav-cta {
    background: var(--accent);
    color: var(--primary) !important;
    padding: 8px 22px;
    border-radius: 60px;
    font-weight: 600;
    transition: var(--transition);
}

    .nav-cta:hover {
        background: var(--accent-light);
        transform: translateY(-2px);
    }

    .nav-cta::after {
        display: none !important;
    }

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
    background: none;
    border: none;
    padding: 4px;
}

    .hamburger span {
        display: block;
        width: 28px;
        height: 3px;
        background: var(--white);
        border-radius: 6px;
        transition: var(--transition);
    }

/* ---------- HERO ---------- */
/*.hero {
    min-height: 100vh;*/
    /*background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 60%, var(--primary-light) 100%);*/
    /*display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    padding: 120px 0 80px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(circle at 20% 80%, rgba(232, 168, 56, 0.12) 0%, transparent 50%), radial-gradient(circle at 80% 20%, rgba(232, 168, 56, 0.06) 0%, transparent 40%);
        pointer-events: none;
    }*/
.hero {
    min-height: 100vh;
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 120px 0 80px;
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}
    .hero::before {
        content: '';
        position: absolute;
        inset: 0;
        background: radial-gradient(circle at 20% 80%, rgba(11, 43, 74, 0.70) 4%, transparent 50%), radial-gradient(circle at 80% 20%, rgba(232, 168, 56, 0.06) 0%, transparent 40%);
        /*background: rgba(11, 43, 74, 0.70);*/ /* overlay escuro para legibilidade */
        z-index: 1;
        pointer-events: none;
    }

    .hero .container {
        position: relative;
        z-index: 2;
    }
.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content h1 {
    font-family: 'Playfair Display', serif;
    font-size: 3.6rem;
    font-weight: 700;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 20px;
}

    .hero-content h1 .highlight {
        color: var(--accent);
        position: relative;
    }

.hero-content p {
    font-size: 1.15rem;
    color: rgba(255, 255, 255, 0.75);
    max-width: 480px;
    margin-bottom: 36px;
    line-height: 1.7;
}

.hero-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
}

.hero-stats {
    display: flex;
    gap: 48px;
    margin-top: 48px;
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.10);
}

    .hero-stats .stat-number {
        font-size: 2rem;
        font-weight: 700;
        color: var(--white);
        font-family: 'Playfair Display', serif;
    }

    .hero-stats .stat-label {
        font-size: 0.85rem;
        color: rgba(255, 255, 255, 0.60);
        font-weight: 400;
    }

.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-card {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    padding: 40px 36px;
    width: 100%;
    max-width: 460px;
    box-shadow: 0 30px 80px rgba(0, 0, 0, 0.30);
}

    .hero-card .card-icon {
        font-size: 2.6rem;
        color: var(--accent);
        margin-bottom: 12px;
    }

    .hero-card h3 {
        font-size: 1.2rem;
        color: var(--white);
        font-weight: 600;
        margin-bottom: 6px;
    }

    .hero-card p {
        color: rgba(255, 255, 255, 0.65);
        font-size: 0.95rem;
        margin-bottom: 20px;
    }

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

    .hero-tags span {
        background: rgba(255, 255, 255, 0.08);
        padding: 4px 16px;
        border-radius: 40px;
        font-size: 0.8rem;
        color: rgba(255, 255, 255, 0.75);
        border: 1px solid rgba(255, 255, 255, 0.06);
    }

/* ---------- SECTION COMMON ---------- */
section {
    padding: 90px 0;
}

.section-header {
    margin-bottom: 56px;
}

/* ---------- ABOUT ---------- */
#sobre {
    background: var(--white);
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.about-text p {
    color: var(--gray-600);
    font-size: 1.05rem;
    margin-bottom: 20px;
    line-height: 1.8;
}

    .about-text p:last-child {
        margin-bottom: 0;
    }

.about-highlights {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 28px;
}

.about-highlight-item {
    background: var(--gray-50);
    padding: 20px 22px;
    border-radius: 12px;
    border-left: 4px solid var(--accent);
}

    .about-highlight-item h4 {
        font-size: 1rem;
        font-weight: 600;
        color: var(--primary);
        margin-bottom: 2px;
    }

    .about-highlight-item p {
        font-size: 0.9rem;
        color: var(--gray-600);
        margin: 0;
    }

.about-image {
    background: var(--gray-100);
    border-radius: var(--radius);
    min-height: 320px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
    color: var(--white);
    font-size: 5rem;
    opacity: 0.9;
    position: relative;
    overflow: hidden;
}

    .about-image .floating-badge {
        position: absolute;
        bottom: 24px;
        right: 24px;
        background: rgba(255, 255, 255, 0.15);
        backdrop-filter: blur(8px);
        padding: 12px 20px;
        border-radius: 12px;
        font-size: 0.9rem;
        display: flex;
        align-items: center;
        gap: 10px;
        border: 1px solid rgba(255, 255, 255, 0.10);
    }

/* ---------- RESEARCH AREAS ---------- */
#pesquisa {
    background: var(--gray-50);
}

.research-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.research-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

    .research-card:hover {
        transform: translateY(-8px);
        box-shadow: var(--shadow-hover);
        border-color: rgba(232, 168, 56, 0.20);
    }

    .research-card .icon {
        font-size: 2.4rem;
        color: var(--accent);
        margin-bottom: 16px;
    }

    .research-card h3 {
        font-size: 1.2rem;
        font-weight: 600;
        color: var(--primary);
        margin-bottom: 8px;
    }

    .research-card p {
        color: var(--gray-600);
        font-size: 0.95rem;
        line-height: 1.7;
    }

/* ---------- FACILITIES / EQUIPAMENTOS ---------- */
#equipamentos {
    background: var(--white);
}

.equip-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.equip-item {
    background: var(--gray-50);
    border-radius: 12px;
    padding: 28px 20px;
    text-align: center;
    transition: var(--transition);
    border: 1px solid var(--gray-200);
}

    .equip-item:hover {
        border-color: var(--accent);
        transform: translateY(-4px);
        box-shadow: var(--shadow);
    }

    .equip-item .icon {
        font-size: 2.2rem;
        color: var(--primary-light);
        margin-bottom: 10px;
    }

    .equip-item h4 {
        font-size: 0.95rem;
        font-weight: 600;
        color: var(--primary);
    }

    .equip-item p {
        font-size: 0.85rem;
        color: var(--gray-600);
        margin-top: 4px;
    }

/* ---------- TEAM ---------- */
#equipe {
    background: var(--gray-50);
}

.team-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.team-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 32px 24px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border: 1px solid transparent;
}

    .team-card:hover {
        transform: translateY(-6px);
        box-shadow: var(--shadow-hover);
        border-color: rgba(232, 168, 56, 0.15);
    }

.team-avatar {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: var(--gray-200);
    margin: 0 auto 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2.4rem;
    color: var(--primary-light);
    background: var(--gray-100);
    border: 3px solid var(--accent-light);
}

.team-card h4 {
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--primary);
}

.team-card .role {
    font-size: 0.85rem;
    color: var(--accent);
    font-weight: 500;
    margin: 2px 0 8px;
}

.team-card p {
    font-size: 0.9rem;
    color: var(--gray-600);
    line-height: 1.5;
}

/* ---------- PUBLICATIONS ---------- */
#publicacoes {
    background: var(--white);
}

.pub-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.pub-item {
    display: flex;
    gap: 20px;
    padding: 22px 28px;
    background: var(--gray-50);
    border-radius: 12px;
    border-left: 4px solid var(--accent);
    transition: var(--transition);
}

    .pub-item:hover {
        background: var(--gray-100);
        transform: translateX(4px);
    }

    .pub-item .year {
        font-weight: 700;
        color: var(--accent);
        font-size: 1rem;
        min-width: 60px;
    }

    .pub-item .content h4 {
        font-size: 1rem;
        font-weight: 600;
        color: var(--primary);
    }

    .pub-item .content p {
        font-size: 0.9rem;
        color: var(--gray-600);
        margin-top: 2px;
    }

    .pub-item .content .journal {
        font-style: italic;
        color: var(--gray-700);
    }

/* ---------- CONTACT ---------- */
#contato {
    background: var(--primary);
    color: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-info h2 {
    font-family: 'Playfair Display', serif;
    font-size: 2.4rem;
    font-weight: 700;
    margin-bottom: 16px;
}

    .contact-info h2 span {
        color: var(--accent);
    }

.contact-info p {
    color: rgba(255, 255, 255, 0.75);
    font-size: 1.05rem;
    max-width: 440px;
    margin-bottom: 32px;
    line-height: 1.7;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 18px;
}

    .contact-details .detail {
        display: flex;
        align-items: center;
        gap: 16px;
        font-size: 1rem;
        color: rgba(255, 255, 255, 0.85);
    }

        .contact-details .detail i {
            width: 40px;
            height: 40px;
            background: rgba(255, 255, 255, 0.08);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent);
            font-size: 1.1rem;
        }

.contact-form {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(8px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    padding: 40px 36px;
}

    .contact-form h3 {
        font-size: 1.3rem;
        font-weight: 600;
        margin-bottom: 20px;
        color: var(--white);
    }

.form-group {
    margin-bottom: 18px;
}

    .form-group label {
        display: block;
        font-size: 0.85rem;
        font-weight: 500;
        color: rgba(255, 255, 255, 0.70);
        margin-bottom: 4px;
    }

    .form-group input,
    .form-group textarea {
        width: 100%;
        padding: 14px 18px;
        border-radius: 10px;
        border: 1px solid rgba(255, 255, 255, 0.12);
        background: rgba(255, 255, 255, 0.06);
        color: var(--white);
        font-family: 'Inter', sans-serif;
        font-size: 0.95rem;
        transition: var(--transition);
        outline: none;
    }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: rgba(255, 255, 255, 0.35);
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-color: var(--accent);
            background: rgba(255, 255, 255, 0.08);
            box-shadow: 0 0 0 4px rgba(232, 168, 56, 0.10);
        }

    .form-group textarea {
        resize: vertical;
        min-height: 120px;
    }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.contact-form .btn {
    width: 100%;
    justify-content: center;
    padding: 16px;
    font-size: 1rem;
}


/* ---------- RESPONSIVE ---------- */
@media (max-width: 1024px) {
    .research-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .equip-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .team-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 900px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }

    .hero-content p {
        margin-left: auto;
        margin-right: auto;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-card {
        max-width: 100%;
    }

    .about-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }

    .section-title {
        font-size: 2.2rem;
    }

    .hero-content h1 {
        font-size: 2.8rem;
    }
}

@media (max-width: 768px) {
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 280px;
        height: 100vh;
        background: var(--primary-dark);
        flex-direction: column;
        padding: 80px 32px 40px;
        gap: 20px;
        transition: var(--transition);
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.30);
    }

        .nav-links.open {
            right: 0;
        }

        .nav-links a {
            font-size: 1.1rem;
        }

    .hamburger {
        display: flex;
        z-index: 1001;
    }

        .hamburger.open span:nth-child(1) {
            transform: rotate(45deg) translate(5px, 5px);
        }

        .hamburger.open span:nth-child(2) {
            opacity: 0;
        }

        .hamburger.open span:nth-child(3) {
            transform: rotate(-45deg) translate(5px, -5px);
        }

    .hero-content h1 {
        font-size: 2.2rem;
    }

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

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

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

    .about-highlights {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer .container {
        flex-direction: column;
        text-align: center;
    }

    .hero-stats {
        gap: 24px;
        flex-wrap: wrap;
    }

    .pub-item {
        flex-direction: column;
        gap: 4px;
    }
}

@media (max-width: 480px) {
    .equip-grid {
        grid-template-columns: 1fr;
    }

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

    .hero-content h1 {
        font-size: 1.9rem;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .contact-form {
        padding: 28px 20px;
    }

    .hero-card {
        padding: 28px 20px;
    }
}

/* ---------- SCROLL ANIMATION (simple) ---------- */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

    .fade-up.visible {
        opacity: 1;
        transform: translateY(0);
    }