/* ============================================================
   Portfólio Iury Adones — tema escuro, CSS puro
   ============================================================ */

:root {
    --bg: #0f1115;
    --bg-soft: #151a22;
    --card: #1b2130;
    --border: #2a3347;
    --text: #e8eaf0;
    --text-dim: #9aa3b8;
    --accent: #e8b24d;
    --accent-2: #4d9de8;
    --accent-3: #e86b4d;
    --radius: 12px;
    --shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
    --maxw: 1080px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue",
        Arial, sans-serif;
    line-height: 1.6;
    min-height: 100vh;
}

a {
    color: var(--accent-2);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

img {
    max-width: 100%;
}

/* ---------- Layout base ---------- */

.site {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.content {
    flex: 1;
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 3rem 1.25rem 4rem;
}

.page-title {
    font-size: clamp(1.8rem, 4vw, 2.6rem);
    margin-bottom: 0.35rem;
    background: linear-gradient(120deg, var(--accent), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.page-subtitle,
.section-subtitle {
    color: var(--text-dim);
    margin-bottom: 2rem;
}

/* ---------- Navegação ---------- */

.nav {
    position: sticky;
    top: 0;
    z-index: 50;
    background: rgba(15, 17, 21, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border);
}

.nav-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0.8rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--text);
    text-decoration: none;
    font-weight: 700;
}

.brand:hover {
    text-decoration: none;
}

.brand-mark {
    display: inline-grid;
    place-items: center;
    width: 34px;
    height: 34px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--accent), var(--accent-3));
    color: #10131a;
    font-size: 0.85rem;
    font-weight: 800;
}

.brand-name {
    font-size: 1.05rem;
    letter-spacing: 0.02em;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 1.2rem;
}

.nav-menu ul {
    display: flex;
    gap: 1.1rem;
    list-style: none;
}

.nav-link {
    color: var(--text-dim);
    font-size: 0.95rem;
    transition: color 0.15s ease;
}

.nav-link:hover {
    color: var(--text);
    text-decoration: none;
}

.nav-link.active {
    color: var(--accent);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 4px;
    background: none;
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px 9px;
    cursor: pointer;
}

.nav-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
}

/* ---------- Alternador de idioma ---------- */

.lang-toggle {
    display: inline-flex;
    border: 1px solid var(--border);
    border-radius: 999px;
    overflow: hidden;
}

.lang-btn {
    background: transparent;
    color: var(--text-dim);
    border: none;
    padding: 0.3rem 0.75rem;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s ease, color 0.15s ease;
}

.lang-btn.active {
    background: var(--accent);
    color: #10131a;
}

/* ---------- Hero ---------- */

.hero {
    text-align: center;
    padding: 3.5rem 0 3rem;
}

.hero-hello {
    color: var(--text-dim);
    font-size: 1.1rem;
    margin-bottom: 0.4rem;
}

.hero-name {
    font-size: clamp(2.6rem, 7vw, 4.4rem);
    line-height: 1.1;
    background: linear-gradient(120deg, var(--accent), var(--accent-3), var(--accent-2));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
    margin-bottom: 0.6rem;
}

.hero-role {
    color: var(--text-dim);
    font-size: clamp(1.1rem, 2.6vw, 1.4rem);
    letter-spacing: 0.08em;
    text-transform: uppercase;
    margin-bottom: 1.2rem;
}

.hero-tagline {
    max-width: 640px;
    margin: 0 auto 1.8rem;
    color: var(--text-dim);
    font-size: 1.05rem;
}

.hero-actions {
    display: flex;
    justify-content: center;
    gap: 0.9rem;
    flex-wrap: wrap;
}

/* ---------- Botões ---------- */

.btn {
    display: inline-block;
    padding: 0.7rem 1.5rem;
    border-radius: 999px;
    font-weight: 600;
    font-size: 0.95rem;
    cursor: pointer;
    transition: transform 0.12s ease, box-shadow 0.12s ease, background 0.15s ease;
    text-decoration: none;
}

.btn:hover {
    transform: translateY(-2px);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent);
    color: #10131a;
    box-shadow: 0 4px 18px rgba(232, 178, 77, 0.35);
}

.btn-outline {
    border: 1px solid var(--border);
    color: var(--text);
}

.btn-outline:hover {
    border-color: var(--accent-2);
    color: var(--accent-2);
}

/* ---------- Seções / perfis (Home) ---------- */

.profiles-section {
    padding: 1.5rem 0 2rem;
}

.section-title {
    text-align: center;
    font-size: clamp(1.6rem, 4vw, 2.2rem);
    margin-bottom: 0.4rem;
}

.section-subtitle {
    text-align: center;
    margin-bottom: 2.2rem;
}

.profiles-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 1.4rem;
}

.profile-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.8rem 1.5rem;
    text-align: center;
    transition: transform 0.15s ease, border-color 0.15s ease;
}

.profile-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
}

.profile-icon {
    width: 60px;
    height: 60px;
    margin: 0 auto 1rem;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    color: var(--accent);
}

.profile-icon svg {
    width: 30px;
    height: 30px;
}

.profile-card h3 {
    font-size: 1.35rem;
    margin-bottom: 0.2rem;
}

.profile-tagline {
    color: var(--accent);
    font-size: 0.9rem;
    margin-bottom: 0.8rem;
}

.profile-description {
    color: var(--text-dim);
    font-size: 0.95rem;
    margin-bottom: 1rem;
}

.profile-badge {
    display: inline-block;
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.25rem 0.9rem;
}

/* ---------- Página Sobre ---------- */

.about-text {
    max-width: 760px;
    display: grid;
    gap: 1.1rem;
    color: var(--text-dim);
    font-size: 1.05rem;
}

.about-text p:first-child {
    color: var(--text);
    font-size: 1.15rem;
}

/* ---------- Projetos ---------- */

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.4rem;
}

.project-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
    transition: transform 0.15s ease, border-color 0.15s ease;
}

.project-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent-2);
}

.project-head {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    gap: 0.6rem;
}

.project-head h3 {
    font-size: 1.15rem;
    line-height: 1.3;
}

.project-year {
    color: var(--accent);
    font-size: 0.9rem;
    font-weight: 700;
    white-space: nowrap;
}

.project-category {
    align-self: flex-start;
    font-size: 0.78rem;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    color: var(--accent-2);
}

.project-description {
    color: var(--text-dim);
    font-size: 0.95rem;
    flex: 1;
}

.project-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.tag {
    background: var(--bg-soft);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.18rem 0.7rem;
    font-size: 0.78rem;
    color: var(--text-dim);
}

.project-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.92rem;
    font-weight: 600;
    color: var(--accent-2);
}

.project-link svg {
    width: 15px;
    height: 15px;
}

/* ---------- Publicações ---------- */

.publications-list {
    display: grid;
    gap: 1.3rem;
}

.publication-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem 1.6rem;
    display: grid;
    gap: 0.55rem;
}

.publication-meta {
    display: flex;
    gap: 0.6rem;
    align-items: center;
}

.publication-kind {
    font-size: 0.75rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.15rem 0.75rem;
}

.publication-year {
    font-size: 0.85rem;
    color: var(--text-dim);
    font-weight: 700;
}

.publication-card h3 {
    font-size: 1.12rem;
    line-height: 1.35;
}

.publication-authors {
    font-size: 0.92rem;
    color: var(--text-dim);
}

.publication-summary {
    font-size: 0.98rem;
    color: var(--text);
}

.publication-keywords {
    font-size: 0.85rem;
    color: var(--text-dim);
}

.label {
    color: var(--accent-2);
    font-weight: 600;
}

/* ---------- Habilidades ---------- */

.skill-groups {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.6rem;
}

.skill-group {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
}

.skill-group-title {
    font-size: 1.1rem;
    margin-bottom: 1.2rem;
    color: var(--accent);
}

.skill-group-bars {
    display: grid;
    gap: 1rem;
}

.skill-head {
    display: flex;
    justify-content: space-between;
    margin-bottom: 0.35rem;
    font-size: 0.92rem;
}

.skill-name {
    color: var(--text);
}

.skill-level {
    color: var(--text-dim);
    font-variant-numeric: tabular-nums;
}

.skill-track {
    height: 8px;
    background: var(--bg-soft);
    border-radius: 999px;
    overflow: hidden;
}

.skill-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent-2), var(--accent));
    transition: width 0.5s ease;
}

/* ---------- Linha do tempo ---------- */

.timeline {
    list-style: none;
    position: relative;
    padding-left: 1.6rem;
    display: grid;
    gap: 2rem;
}

.timeline::before {
    content: "";
    position: absolute;
    left: 6px;
    top: 4px;
    bottom: 4px;
    width: 2px;
    background: var(--border);
}

.timeline-item {
    position: relative;
}

.timeline-marker {
    position: absolute;
    left: -1.6rem;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--accent);
    box-shadow: 0 0 0 4px var(--bg);
}

.timeline-body {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.3rem 1.4rem;
}

.timeline-meta {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    flex-wrap: wrap;
    margin-bottom: 0.35rem;
}

.timeline-period {
    font-weight: 700;
    color: var(--accent);
    font-size: 0.92rem;
}

.timeline-kind {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--text-dim);
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: 0.1rem 0.7rem;
}

.timeline-body h3 {
    font-size: 1.15rem;
    margin-bottom: 0.15rem;
}

.timeline-org {
    font-size: 0.9rem;
    color: var(--accent-2);
    margin-bottom: 0.5rem;
}

.timeline-description {
    color: var(--text-dim);
    font-size: 0.95rem;
}

/* ---------- Contato ---------- */

.contact-cta {
    max-width: 560px;
    color: var(--text-dim);
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

.contact-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.3rem;
}

.contact-card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.6rem;
    display: grid;
    justify-items: center;
    gap: 0.5rem;
    text-align: center;
    color: var(--text);
    transition: transform 0.15s ease, border-color 0.15s ease;
}

a.contact-card:hover {
    transform: translateY(-3px);
    border-color: var(--accent);
    text-decoration: none;
}

.contact-icon {
    width: 52px;
    height: 52px;
    display: grid;
    place-items: center;
    border-radius: 50%;
    background: var(--bg-soft);
    border: 1px solid var(--border);
    color: var(--accent);
    margin-bottom: 0.4rem;
}

.contact-icon svg {
    width: 26px;
    height: 26px;
}

.contact-label {
    font-size: 0.85rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.06em;
}

.contact-value {
    font-weight: 600;
    word-break: break-all;
}

/* ---------- 404 ---------- */

.notfound {
    text-align: center;
    display: grid;
    gap: 1.2rem;
    justify-items: center;
}

.notfound p {
    color: var(--text-dim);
    max-width: 460px;
}

/* ---------- Footer ---------- */

.footer {
    border-top: 1px solid var(--border);
    background: var(--bg-soft);
}

.footer-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 1.6rem 1.25rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    text-align: center;
    color: var(--text-dim);
    font-size: 0.9rem;
}

.footer-built {
    font-size: 0.82rem;
}

.footer-link {
    font-size: 0.9rem;
}

/* ---------- Responsivo ---------- */

@media (max-width: 860px) {
    .nav-toggle {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        align-items: stretch;
        background: rgba(15, 17, 21, 0.98);
        border-bottom: 1px solid var(--border);
        padding: 0.6rem 1.25rem 1rem;
        gap: 0.9rem;
        display: none;
    }

    .nav-menu.open {
        display: flex;
    }

    .nav-menu ul {
        flex-direction: column;
        gap: 0.6rem;
    }

    .lang-toggle {
        align-self: flex-start;
    }

    .hero {
        padding: 2.2rem 0 2rem;
    }
}