@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;500;700;900&display=swap');

:root {
    --bg: #FFFFFF;
    --bg-alt: #F8F9FA;
    --bg-card: #FFFFFF;
    --bg-card-hover: #F8F9FA;
    --border: #DADCE0;
    --border-hover: #BDC1C6;
    --text: #202124;
    --text-secondary: #5F6368;
    --text-muted: #6C7276;
    --accent: #1A73E8;
    --accent-hover: #1558B0;
    --accent-soft: rgba(26,115,232,0.08);
    --brand-navy: #1558B0;
    --brand-teal: #1A73E8;
    --brand-navy-soft: rgba(26,115,232,0.08);
    --green: #1E8E3E;
    --red: #D93025;
    --yellow: #F9AB00;
    --hl-green: #81C784;
    --hl-blue: #64B5F6;
    --hl-pink: #F06292;
    --hl-purple: #BA68C8;
    --hl-orange: #FFB74D;
    --overlay-1: rgba(0,0,0,0.03);
    --overlay-2: rgba(0,0,0,0.05);
    --overlay-3: rgba(0,0,0,0.08);
    --radius-lg: 12px;
    --radius-md: 8px;
    --radius-sm: 4px;
    --radius-pill: 999px;
    --shadow-1: 0 1px 2px rgba(0,0,0,0.08);
    --shadow-2: 0 1px 3px rgba(0,0,0,0.12), 0 1px 2px rgba(0,0,0,0.06);
    --shadow-hover: 0 4px 8px rgba(0,0,0,0.15);
    --t: 0.3s cubic-bezier(0.16, 1, 0.32, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: 'Roboto', 'Inter', sans-serif;
    color: var(--text);
    background: var(--bg);

    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

::selection { background: var(--accent); color: #fff; }

/* ===================== NAV ===================== */
nav {
    position: fixed; top: 0; width: 100%;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    z-index: 100; padding: 0 2rem;
    transition: box-shadow var(--t);
}
nav.scrolled { box-shadow: var(--shadow-1); }

.nav-inner {
    max-width: 1100px; margin: 0 auto;
    display: flex; align-items: center;
    justify-content: space-between; height: 60px;
    gap: 1rem;
}
.nav-logo {
    height: 32px;
}
.nav-links { display: flex; list-style: none; gap: 0.5rem; }
.nav-links > li { position: relative; }
.nav-links a {
    color: var(--text-secondary); text-decoration: none;
    font-size: 0.78rem; font-weight: 500;
    padding: 6px 14px; border-radius: 50px;
    transition: all var(--t);
    border: 1px solid transparent;
}
.nav-links a:hover {
    color: var(--text);
    background: var(--overlay-2);
    border-color: var(--border);
}

/* ===== Submenu (desktop dropdown) ===== */
.nav-parent-link {
    white-space: nowrap;
}
.nav-caret {
    display: inline-block;
    font-size: 0.6rem;
    line-height: 1;
    opacity: 0.55;
    margin-left: 4px;
    vertical-align: 1px;
    transition: transform var(--t);
}
.nav-links .has-submenu:hover .nav-caret,
.nav-links .has-submenu:focus-within .nav-caret {
    transform: rotate(180deg);
}
.nav-submenu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 160px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 6px;
    list-style: none;
    box-shadow: var(--shadow-2);
    z-index: 200;
}
.nav-links .has-submenu:hover .nav-submenu,
.nav-links .has-submenu:focus-within .nav-submenu {
    display: block;
}
.nav-submenu li { margin: 0; list-style: none; }
.nav-submenu a {
    display: block;
    padding: 8px 14px;
    border-radius: var(--radius-md);
    font-size: 0.78rem;
    color: var(--text-secondary);
    border: 0 !important;
    white-space: nowrap;
}
.nav-submenu a:hover {
    background: var(--accent-soft);
    color: var(--accent);
    border: 0 !important;
}
/* Bridge invisivel para hover nao se quebrar entre parent e submenu */
.nav-links .has-submenu::after {
    content: '';
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    height: 8px;
    pointer-events: none;
}
.nav-links .has-submenu:hover::after { pointer-events: auto; }

/* Language toggle */
.lang-toggle {
    display: flex; align-items: center; gap: 4px;
    background: var(--overlay-2);
    border: 1px solid var(--border);
    border-radius: 50px; padding: 5px 12px;
    cursor: pointer; transition: all var(--t);
    font-family: 'Roboto', sans-serif;
}
.lang-toggle:hover { border-color: var(--border-hover); }
.lang-opt {
    font-size: 0.72rem; font-weight: 600;
    color: var(--text-muted);
    transition: color var(--t);
}
.lang-opt.active { color: var(--accent); }
.lang-sep {
    font-size: 0.65rem; color: var(--border-hover);
}

.hamburger {
    display: none; flex-direction: column; gap: 5px;
    cursor: pointer; background: none; border: none; padding: 4px;
}
.hamburger span {
    width: 20px; height: 1.5px; background: var(--text-secondary);
    border-radius: 2px; transition: var(--t);
}

/* ===================== HERO ===================== */
.hero {
    display: flex; align-items: center;
    background: var(--bg);
    padding: 140px 2rem 60px;
    position: relative; overflow: hidden;
}

.hero-inner {
    max-width: 1100px; margin: 0 auto;
    display: flex; align-items: center; gap: 4rem;
    position: relative; z-index: 1; width: 100%;
}
.hero-text { flex: 1; }

.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--accent-soft);
    color: var(--accent);
    padding: 6px 16px; border-radius: 50px;
    font-size: 0.7rem; font-weight: 600;
    letter-spacing: 0.08em; text-transform: uppercase;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(26,115,232,0.2);
}
.hero-badge svg { flex-shrink: 0; }

.hero-text h1 {
    font-size: 3rem; font-weight: 800;
    color: var(--text); line-height: 1.1;
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
}
.hero-text h1 span {
    color: var(--accent);
}

.hero-text h2 {
    font-size: 1.1rem; font-weight: 400;
    color: var(--text-secondary); margin-bottom: 1rem;
}
.hero-text p {
    font-size: 0.9rem; color: var(--text-secondary);
    max-width: 480px; margin-bottom: 2rem; line-height: 1.8;
}

.hero-buttons { display: flex; gap: 0.8rem; flex-wrap: wrap; }

.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 12px 24px; border-radius: var(--radius-md);
    font-size: 0.85rem; font-weight: 600;
    text-decoration: none; transition: all var(--t);
    cursor: pointer; border: none;
    font-family: 'Roboto', sans-serif;
}
.btn svg { flex-shrink: 0; }
.btn-primary {
    background: var(--accent); color: #fff;
    box-shadow: var(--shadow-1);
}
.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-hover);
}
.btn-outline {
    background: transparent; color: var(--text);
    border: 1px solid var(--border);
}
.btn-outline:hover {
    border-color: var(--border-hover);
    background: var(--overlay-2);
    transform: translateY(-2px);
}

/* Hero stats */
.hero-stats {
    display: flex; gap: 2rem; margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
}
.hero-stat { text-align: center; }
.hero-stat .number {
    display: block; font-size: 1.5rem; font-weight: 800;
    color: var(--accent);
    letter-spacing: -0.02em;
}
.hero-stat .label {
    font-size: 0.65rem; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: 0.08em;
    margin-top: 2px;
}

/* Hero photo */
.hero-photo-container {
    flex-shrink: 0;
    position: relative;
    width: 280px;
    display: flex;
    flex-direction: column;
    align-items: center;
}
.hero-photo {
    width: 280px; height: 280px;
    border-radius: 50%;
    object-fit: cover;
    object-position: center 30%;
    position: relative;
    z-index: 1;
    border: 4px solid var(--bg);
    box-shadow: var(--shadow-2);
}

.hero-logo-below {
    display: block;
    width: 220px;
    margin: 1.5rem auto 0;
    position: relative; z-index: 1;
}

/* Hide old elements */
.hero-orb, .hero-shape, .hero-logo-container, .hero-logo-card,
.hero-logo, .dots-pattern { display: none !important; }

/* ===================== SECTIONS ===================== */
section { padding: 80px 2rem; position: relative; }

.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 {
    font-size: 1.8rem; font-weight: 800; margin-bottom: 0.5rem;
    letter-spacing: -0.02em; color: var(--text);
}
.section-header h2 em {
    font-style: normal;
    color: var(--accent);
}
.section-header .accent-line {
    width: 40px; height: 3px;
    background: var(--accent);
    margin: 0.8rem auto; border-radius: 2px;
    box-shadow: var(--shadow-1);
}
.section-header p {
    color: var(--text-secondary); font-size: 0.9rem;
    max-width: 520px; margin: 0 auto;
}
.container { max-width: 1100px; margin: 0 auto; }

/* ===================== SOBRE ===================== */
.sobre {
    background: var(--bg);
    border-top: 1px solid var(--border);
}

.sobre-grid {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 3rem; align-items: start;
}
.sobre-text p {
    color: var(--text-secondary); margin-bottom: 1.2rem;
    font-size: 0.9rem; line-height: 1.8;
}

.sobre-destaques {
    display: grid; grid-template-columns: 1fr 1fr; gap: 1rem;
}
.destaque-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.4rem;
    border-radius: var(--radius-lg);
    transition: all var(--t);
    position: relative; overflow: hidden;
}
.destaque-card::before {
    content: ''; position: absolute; top: 0; left: 0;
    width: 3px; height: 100%;
    background: var(--accent);
    opacity: 0; transition: opacity var(--t);
}
.destaque-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}
.destaque-card:hover::before { opacity: 1; }
.destaque-card .icon-small {
    margin-bottom: 0.4rem; color: var(--accent);
}
.destaque-card .numero {
    font-size: 1.6rem; font-weight: 800;
    color: var(--accent); display: block;
}
.destaque-card .label {
    font-size: 0.75rem; color: var(--text-muted); font-weight: 500;
}

/* ===================== COMPETENCIAS ===================== */
.competencias-section {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.competencias-section::before { display: none; }

.competencias-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
}
.comp-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 1.8rem;
    transition: all var(--t);
    position: relative; overflow: hidden;
}
.comp-card::after {
    content: ''; position: absolute; bottom: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--accent);
    transform: scaleX(0); transform-origin: left;
    transition: transform var(--t);
    box-shadow: var(--shadow-1);
}
.comp-card:hover::after { transform: scaleX(1); }
.comp-card:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
    transform: translateY(-3px);
}
.comp-icon {
    width: 44px; height: 44px;
    background: var(--accent-soft);
    border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    margin-bottom: 1rem; color: var(--accent);
}
.comp-card h3 {
    font-size: 0.95rem; font-weight: 700; margin-bottom: 0.4rem;
    color: var(--text);
}
.comp-card p {
    font-size: 0.82rem; color: var(--text-secondary); margin-bottom: 0.8rem;
    line-height: 1.7;
}

.skill-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.skill-tag {
    background: var(--accent-soft); color: var(--accent);
    font-size: 0.65rem; font-weight: 600;
    padding: 3px 10px; border-radius: 50px;
    border: 1px solid rgba(26,115,232,0.15);
}

/* ===================== EXPERIENCIA ===================== */
.experiência {
    background: var(--bg);
    border-top: 1px solid var(--border);
}
.experiência::before { display: none; }

.timeline { position: relative; padding-left: 36px; }
.timeline::before {
    content: ''; position: absolute; left: 13px; top: 0; bottom: 0;
    width: 1px;
    background: linear-gradient(to bottom, var(--accent), var(--border), transparent);
}
.timeline-item {
    position: relative; margin-bottom: 1.2rem;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.5rem 1.8rem;
    border-radius: var(--radius-lg);
    transition: all var(--t);
}
.timeline-item:hover {
    border-color: var(--border-hover);
    background: var(--bg-card-hover);
}
.timeline-item::before {
    content: ''; position: absolute;
    left: -31px; top: 1.6rem;
    width: 8px; height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: var(--shadow-1);
}
.timeline-header {
    display: flex; align-items: center; gap: 10px;
    flex-wrap: wrap; margin-bottom: 0.4rem;
}
.timeline-periodo {
    display: inline-flex; align-items: center; gap: 5px;
    background: var(--accent-soft);
    color: var(--accent);
    padding: 3px 10px; border-radius: 50px;
    font-size: 0.7rem; font-weight: 600;
    border: 1px solid rgba(26,115,232,0.15);
}
.timeline-item h3 {
    font-size: 1rem; font-weight: 700; color: var(--text);
}
.timeline-empresa {
    display: flex; align-items: center; gap: 5px;
    font-size: 0.82rem; color: var(--text-secondary);
    margin-bottom: 0.6rem; font-weight: 500;
}
.timeline-item ul { list-style: none; padding: 0; }
.timeline-item ul li {
    font-size: 0.82rem; color: var(--text-secondary);
    padding: 2px 0 2px 1.3rem; position: relative;
    line-height: 1.7;
}
.timeline-item ul li::before {
    content: ''; position: absolute; left: 0; top: 10px;
    width: 5px; height: 5px;
    background: var(--accent);
    border-radius: 50%;
}

/* ===================== TECH STACK ===================== */
.tech-section {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.tech-section::before { display: none; }

.tech-grid {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem;
}
.tech-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 1.3rem;
    text-align: center; transition: all var(--t);
}
.tech-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}
.tech-card-icon {
    width: 40px; height: 40px; margin: 0 auto 0.6rem;
    background: var(--accent-soft); border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    color: var(--accent);
}
.tech-card h4 {
    font-size: 0.85rem; font-weight: 600; margin-bottom: 0.2rem;
    color: var(--text);
}
.tech-card p {
    font-size: 0.7rem; color: var(--text-muted);
}

/* ===================== FORMACAO ===================== */
.formacao-section {
    background: var(--bg);
    border-top: 1px solid var(--border);
}
.formacao-section::after { display: none; }

.formacao-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
}
.formacao-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 1.3rem; border-radius: var(--radius-lg);
    border-left: 3px solid var(--accent);
    transition: all var(--t);
    display: flex; gap: 1rem; align-items: flex-start;
}
.formacao-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    border-left-color: var(--accent);
    transform: translateY(-2px);
}
.formacao-icon {
    width: 38px; height: 38px; flex-shrink: 0;
    background: var(--accent-soft); border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    color: var(--accent);
}
.formacao-card h3 {
    font-size: 0.88rem; font-weight: 700; margin-bottom: 0.2rem;
    color: var(--text);
}
.formacao-card .instituição {
    font-size: 0.8rem; color: var(--accent); font-weight: 600;
}
.formacao-card .ano {
    font-size: 0.72rem; color: var(--text-muted);
    display: flex; align-items: center; gap: 4px;
}

/* ===================== PUBLICACOES ===================== */
.publicacoes-section {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.publicacoes-grid {
    display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem;
}
.publicacao-card {
    background: var(--bg);
    border: 1px solid var(--border);
    padding: 1.6rem; border-radius: var(--radius-lg);
    display: flex; gap: 1rem; align-items: flex-start;
    transition: all var(--t);
}
.publicacao-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
    transform: translateY(-2px);
}
.publicacao-icon {
    width: 42px; height: 42px; flex-shrink: 0;
    background: var(--accent-soft); border-radius: var(--radius-md);
    display: flex; align-items: center; justify-content: center;
    color: var(--accent);
}
.publicacao-content h3 {
    font-size: 0.9rem; font-weight: 700; margin-bottom: 0.4rem;
    line-height: 1.4; color: var(--text);
}
.publicacao-desc {
    font-size: 0.82rem; color: var(--text-secondary);
    line-height: 1.7; margin-bottom: 0.7rem;
}
.publicacao-tags { display: flex; flex-wrap: wrap; gap: 5px; }
.publicacao-tags span {
    background: var(--accent-soft); color: var(--accent);
    font-size: 0.65rem; font-weight: 600;
    padding: 3px 10px; border-radius: 50px;
    border: 1px solid rgba(26,115,232,0.15);
}

/* ===================== BLOG ===================== */
.blog-section {
    background: var(--bg);
    border-top: 1px solid var(--border);
}
.blog-grid {
    display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
}
.blog-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--t);
    display: flex; flex-direction: column;
    cursor: pointer;
}
.blog-card:hover {
    transform: translateY(-3px);
    border-color: var(--border-hover);
}
.blog-card-img {
    width: 100%; aspect-ratio: 16/9; object-fit: cover;
    border-bottom: 2px solid var(--accent);
    opacity: 0.8; transition: opacity var(--t);
}
.blog-card:hover .blog-card-img { opacity: 1; }
.blog-card-body {
    padding: 1.3rem; flex: 1;
    display: flex; flex-direction: column;
}
.blog-card-tag {
    display: inline-flex; align-items: center; gap: 4px;
    background: var(--accent-soft); color: var(--accent);
    font-size: 0.6rem; font-weight: 700; text-transform: uppercase;
    padding: 3px 10px; border-radius: 50px; width: fit-content;
    margin-bottom: 0.7rem; letter-spacing: 0.05em;
    border: 1px solid rgba(26,115,232,0.15);
}
.blog-card-body h3 {
    font-size: 0.88rem; font-weight: 700; line-height: 1.4;
    margin-bottom: 0.5rem; color: var(--text);
}
.blog-card-body p {
    font-size: 0.78rem; color: var(--text-secondary);
    line-height: 1.7; flex: 1;
}
.blog-card-footer {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.8rem 1.3rem; border-top: 1px solid var(--border);
}
.blog-card-date {
    display: flex; align-items: center; gap: 4px;
    font-size: 0.68rem; color: var(--text-muted);
}
.blog-card-source {
    font-size: 0.65rem; color: var(--text-muted);
    font-weight: 600; text-transform: uppercase;
}

@media (max-width: 1024px) {
    .blog-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
    .blog-grid { grid-template-columns: 1fr; }
}

/* ===================== CONTATO ===================== */
.contato {
    background: var(--bg-card);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.contato::before { display: none; }

.contato-layout {
    display: grid; grid-template-columns: 1.2fr 0.8fr;
    gap: 2.5rem; align-items: start;
}

/* Form */
.contact-form {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    padding: 2rem;
}
.form-row {
    display: grid; grid-template-columns: 1fr 1fr;
    gap: 1rem;
}
.form-group {
    margin-bottom: 1rem;
}
.form-group label {
    display: block; font-size: 0.78rem; font-weight: 600;
    color: var(--text-secondary); margin-bottom: 0.4rem;
    letter-spacing: 0.02em;
}
.form-group input,
.form-group textarea {
    width: 100%; padding: 10px 14px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    color: var(--text); font-size: 0.85rem;
    font-family: 'Roboto', sans-serif;
    transition: border-color var(--t), box-shadow var(--t);
    outline: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}
.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-soft);
}
.form-group textarea { resize: vertical; min-height: 120px; }

.btn-submit {
    width: 100%; justify-content: center;
    margin-top: 0.5rem;
}
.btn-submit:disabled {
    opacity: 0.6; cursor: not-allowed;
    transform: none !important;
}

.form-feedback {
    margin-top: 1rem; padding: 0; font-size: 0.82rem;
    border-radius: var(--radius-md); text-align: center;
    transition: all var(--t);
}
.form-feedback.success {
    background: rgba(34,197,94,0.1); color: #22c55e;
    border: 1px solid rgba(34,197,94,0.2);
    padding: 10px 14px;
}
.form-feedback.error {
    background: rgba(239,68,68,0.1); color: #ef4444;
    border: 1px solid rgba(239,68,68,0.2);
    padding: 10px 14px;
}

/* Info cards */
.contato-info {
    display: flex; flex-direction: column; gap: 1rem;
}
.contato-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg); padding: 1.4rem;
    display: flex; align-items: center; gap: 1rem;
    transition: all var(--t);
}
.contato-card:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-hover);
}
.contato-icon {
    width: 44px; height: 44px; flex-shrink: 0;
    background: var(--accent-soft); border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    color: var(--accent);
}
.contato-card h3 {
    font-size: 0.82rem; font-weight: 600; margin-bottom: 0.2rem;
    color: var(--text);
}
.contato-card a {
    color: var(--accent); text-decoration: none;
    font-size: 0.82rem; word-break: break-all;
    transition: color var(--t);
}
.contato-card a:hover { color: #60a5fa; }

@media (max-width: 768px) {
    .contato-layout { grid-template-columns: 1fr; }
    .form-row { grid-template-columns: 1fr; }
}

/* ===================== WHATSAPP FLUTUANTE ===================== */
.whatsapp-float {
    position: fixed; bottom: 24px; right: 24px;
    width: 50px; height: 50px;
    background: #25D366; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 0 20px rgba(37,211,102,0.3);
    z-index: 9999; transition: all var(--t);
    text-decoration: none;
}
.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 0 30px rgba(37,211,102,0.5);
}

/* ===================== FOOTER ===================== */
footer {
    --bg: #0a0a0a;
    --text: #fafafa;
    --text-secondary: rgba(255,255,255,0.72);
    --text-muted: rgba(255,255,255,0.55);
    --border: rgba(255,255,255,0.08);
    --border-hover: rgba(255,255,255,0.14);
    background: var(--bg);
    border-top: 1px solid var(--border);
    color: var(--text-muted);
    text-align: center; padding: 2rem; font-size: 0.78rem;
}
footer span { color: var(--accent); }

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

/* Tablets / telas médias: nav vira hambúrguer */
@media (max-width: 960px) {
    .hamburger { display: flex; }
    .nav-links {
        display: none; position: absolute;
        top: 60px; left: 0; right: 0;
        background: var(--bg);
        border-bottom: 1px solid var(--border);
        box-shadow: var(--shadow-2);
        flex-direction: column; padding: 1rem 2rem; gap: 0.3rem;
    }
    .nav-links.active { display: flex; }
    .nav-links a { padding: 10px 14px; border-radius: var(--radius-md); }
    .nav-caret { display: none; }
    .nav-submenu {
        display: block;
        position: static;
        margin: 0.25rem 0 0.5rem 1rem;
        background: transparent;
        border: 0;
        padding: 0;
        box-shadow: none;
    }
    .nav-submenu a {
        font-size: 0.85rem;
        padding: 8px 14px;
        opacity: 0.75;
    }
    .nav-links .has-submenu::after { display: none; }
    .hero-inner { gap: 2.5rem; }
    .hero-text h1 { font-size: 2.4rem; }
    .hero-photo-container { width: 220px; }
    .hero-photo { width: 220px; height: 220px; }
    .hero-logo-below { width: 180px; }
}

@media (max-width: 768px) {
    .hero-inner {
        flex-direction: column-reverse; text-align: center; gap: 2rem;
    }
    .hero { padding: 110px 1.5rem 50px; }
    .hero-text h1 { font-size: 2rem; }
    .hero-text p { margin: 0 auto 2rem; }
    .hero-buttons { justify-content: center; }
    .hero-stats { justify-content: center; flex-wrap: wrap; gap: 1.5rem; }
    .hero-photo-container { width: 200px; }
    .hero-photo { width: 200px; height: 200px; }
    .hero-logo-below { width: 160px; margin-top: 1rem; }
    .sobre-grid { grid-template-columns: 1fr; }
    .competencias-grid { grid-template-columns: 1fr; }
    .formacao-grid { grid-template-columns: 1fr; }
    .contato-grid { grid-template-columns: 1fr; }
    .tech-grid { grid-template-columns: 1fr 1fr; }
    .publicacoes-grid { grid-template-columns: 1fr; }
    section { padding: 60px 1.5rem; }
    .section-header h2 { font-size: 1.5rem; }
    nav { padding: 0 1.25rem; }
    .nav-logo { height: 28px; }
}

@media (max-width: 480px) {
    .tech-grid { grid-template-columns: 1fr; }
    .hero-stats { flex-direction: column; gap: 0.8rem; }
    .hero-text h1 { font-size: 1.7rem; }
    .hero-buttons .btn { padding: 10px 18px; font-size: 0.8rem; }
    .lang-toggle { padding: 4px 8px; }
    .lang-opt { font-size: 0.65rem; }
}

/* ===================== ANIMACOES ===================== */
.fade-in {
    opacity: 0; transform: translateY(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }

.fade-in-left {
    opacity: 0; transform: translateX(-20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in-left.visible { opacity: 1; transform: translateX(0); }

.fade-in-right {
    opacity: 0; transform: translateX(20px);
    transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-in-right.visible { opacity: 1; transform: translateX(0); }

.stagger-1 { transition-delay: 0.05s; }
.stagger-2 { transition-delay: 0.1s; }
.stagger-3 { transition-delay: 0.15s; }
.stagger-4 { transition-delay: 0.2s; }
.stagger-5 { transition-delay: 0.25s; }
.stagger-6 { transition-delay: 0.3s; }
.stagger-7 { transition-delay: 0.35s; }

/* ===== A11Y: foco visivel para navegacao por teclado ===== */
:focus { outline: none; }
:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
    border-radius: 4px;
}
button:focus-visible,
a:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
[role="button"]:focus-visible,
[tabindex]:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 3px;
}

/* ===== A11Y: respeita prefers-reduced-motion ===== */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}