/* ============================================================
   Portfólio — Maria Eduarda Batista
   Tema: Dark "Aeroespacial" (azul-marinho + ciano)
   ============================================================ */

:root {
    --bg: #070b14;              /* azul-marinho profundo */
    --bg-2: #0b1322;            /* superfície */
    --bg-3: #0f1a2e;            /* card elevado */
    --border: rgba(148, 163, 184, 0.14);
    --text: #e6edf7;
    --muted: #94a3b8;
    --accent: #22d3ee;          /* ciano */
    --accent-2: #3b82f6;        /* azul */
    --accent-glow: rgba(34, 211, 238, 0.35);
    --grad: linear-gradient(135deg, #22d3ee 0%, #3b82f6 100%);
    --font-head: 'Space Grotesk', sans-serif;
    --font-tech: 'Orbitron', sans-serif;
    --font-body: 'Inter', sans-serif;
    --shadow-card: 0 20px 50px rgba(0, 0, 0, 0.45);
}

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

html { scroll-behavior: smooth; }

body {
    font-family: var(--font-body);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

/* Campo de estrelas em canvas (fixo atrás de tudo) */
#stars {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    opacity: 0.7;
}

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ---------- Utilitários ---------- */
.grad-text {
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: transparent;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1.7rem;
    border-radius: 999px;
    font-family: var(--font-head);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, color 0.25s ease;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--grad);
    color: #04121f;
    box-shadow: 0 10px 30px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 16px 40px rgba(34, 211, 238, 0.45);
}

.btn-ghost {
    background: transparent;
    color: var(--text);
    border: 1px solid var(--border);
    backdrop-filter: blur(6px);
}

.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-3px); }

.btn-mini {
    padding: 0.5rem 1rem;
    font-size: 0.8rem;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text);
    border-radius: 999px;
}

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

.btn-disabled { opacity: 0.6; cursor: not-allowed; }

/* ---------- Cabeçalho ---------- */
.header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(7, 11, 20, 0.72);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s ease, background 0.3s ease;
}

.header.scrolled { border-bottom-color: var(--border); }

.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    text-decoration: none;
}

.nav-logo-mark {
    font-family: var(--font-tech);
    font-weight: 700;
    color: var(--accent);
    border: 1px solid var(--accent);
    border-radius: 10px;
    padding: 0.3rem 0.55rem;
    font-size: 0.9rem;
    letter-spacing: 1px;
}

.nav-logo-text {
    font-family: var(--font-head);
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text);
    white-space: nowrap;
}

.nav-logo-text span { color: var(--accent); }

.nav-menu {
    display: flex;
    list-style: none;
    gap: 1.5rem;
    align-items: center;
}

.nav-link {
    color: var(--muted);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
    position: relative;
    transition: color 0.25s ease;
}

.nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -6px;
    width: 0;
    height: 2px;
    background: var(--grad);
    transition: width 0.3s ease;
}

.nav-link:hover, .nav-link.active { color: var(--text); }

.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-link-cta {
    padding: 0.5rem 1.2rem;
    border: 1px solid var(--accent);
    border-radius: 999px;
    color: var(--accent);
}

.nav-link-cta::after { display: none; }

.nav-link-cta:hover { background: var(--accent); color: #04121f; }

/* Hambúrguer */
.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 6px;
}

.bar { width: 26px; height: 2.5px; background: var(--text); border-radius: 2px; transition: 0.3s; }

.hamburger.open .bar:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.hamburger.open .bar:nth-child(2) { opacity: 0; }
.hamburger.open .bar:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

/* Orbes de nebulosa */
.orb {
    position: absolute;
    border-radius: 50%;
    filter: blur(90px);
    z-index: -1;
}

.orb-cyan { width: 420px; height: 420px; background: rgba(34, 211, 238, 0.14); top: -80px; right: -60px; }
.orb-blue { width: 460px; height: 460px; background: rgba(59, 130, 246, 0.14); bottom: -120px; left: -80px; }

.hero-content {
    display: grid;
    grid-template-columns: 1.25fr 0.75fr;
    gap: 4rem;
    align-items: center;
    width: 100%;
    position: relative;
    z-index: 1;
}

.eyebrow {
    font-family: var(--font-tech);
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

.hero h1 {
    font-family: var(--font-head);
    font-size: clamp(2.4rem, 5vw, 4rem);
    line-height: 1.1;
    font-weight: 700;
    margin-bottom: 1.1rem;
}

.hero-role {
    font-family: var(--font-head);
    font-size: clamp(1.1rem, 2.4vw, 1.5rem);
    color: var(--muted);
    min-height: 2.4rem;
    margin-bottom: 1.2rem;
    font-weight: 500;
}

.type-caret {
    display: inline-block;
    width: 3px;
    height: 1.15em;
    background: var(--accent);
    margin-left: 4px;
    vertical-align: text-bottom;
    animation: blink 0.85s step-end infinite;
}

.hero-desc { max-width: 540px; color: var(--muted); font-size: 1.02rem; margin-bottom: 2rem; }

.hero-desc strong { color: var(--text); font-weight: 600; }

.hero-buttons { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2.2rem; }

.hero-socials { display: flex; gap: 0.9rem; }

.hero-socials a {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    border: 1px solid var(--border);
    color: var(--muted);
    text-decoration: none;
    font-size: 1.05rem;
    transition: all 0.25s ease;
}

.hero-socials a:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-3px); box-shadow: 0 8px 24px var(--accent-glow); }

/* Foto do hero */
.hero-visual { display: flex; justify-content: center; }

.photo-ring {
    position: relative;
    width: 300px;
    height: 300px;
}

.photo-ring::before {
    content: '';
    position: absolute;
    inset: -14px;
    border-radius: 50%;
    border: 1px dashed rgba(34, 211, 238, 0.5);
    animation: spin 24s linear infinite;
}

.photo-ring::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 50%;
    background: var(--grad);
    filter: blur(26px);
    opacity: 0.25;
    z-index: -1;
}

#profile-img, .avatar-fallback {
    width: 300px;
    height: 300px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid rgba(34, 211, 238, 0.35);
    box-shadow: var(--shadow-card);
    position: relative;
}

.avatar-fallback {
    display: none;
    align-items: center;
    justify-content: center;
    background: linear-gradient(145deg, #101d33, #0a1120);
}

.avatar-fallback span {
    font-family: var(--font-tech);
    font-weight: 900;
    font-size: 4rem;
    background: var(--grad);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.photo-badge {
    position: absolute;
    bottom: 18px;
    right: 18px;
    width: 58px;
    height: 58px;
    border-radius: 18px;
    background: var(--bg-3);
    border: 1px solid var(--accent);
    display: grid;
    place-items: center;
    font-size: 1.4rem;
    color: var(--accent);
    box-shadow: 0 8px 26px var(--accent-glow);
}

.scroll-hint {
    position: absolute;
    bottom: 26px;
    left: 50%;
    transform: translateX(-50%);
    color: var(--muted);
    font-size: 1.1rem;
    animation: float 2.2s ease-in-out infinite;
}

.scroll-hint:hover { color: var(--accent); }

/* ---------- Seções ---------- */
.section { position: relative; z-index: 1; padding: 110px 0; }

.section-alt {
    background: linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
}

.section-tag {
    font-family: var(--font-tech);
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--accent);
    font-size: 0.8rem;
    margin-bottom: 0.8rem;
}

.section-title {
    font-family: var(--font-head);
    font-size: clamp(1.8rem, 3.6vw, 2.7rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 3rem;
}

/* Sobre */
.about-grid {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 3.5rem;
    align-items: start;
}

.about-text p { color: var(--muted); margin-bottom: 1.2rem; font-size: 1.03rem; }

.about-text strong { color: var(--text); font-weight: 600; }

.muted-note {
    font-size: 0.88rem !important;
    color: #6b7a90 !important;
    border-left: 2px solid var(--accent);
    padding-left: 1rem;
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.2rem;
}

.stat-card {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.6rem 1.4rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.stat-card:hover { transform: translateY(-5px); border-color: var(--accent); }

.stat-num {
    font-family: var(--font-tech);
    font-weight: 700;
    font-size: 2rem;
    color: var(--accent);
}

.stat-label { color: var(--muted); font-size: 0.9rem; }

/* Habilidades */
.skills-cats { display: grid; grid-template-columns: 1fr 1fr; gap: 1.4rem; margin-bottom: 2rem; }

.skill-cat {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 1.8rem;
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.skill-cat:hover { border-color: rgba(34, 211, 238, 0.4); transform: translateY(-3px); }

.skill-cat h3, .soft-skills h3 {
    font-family: var(--font-head);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 1.1rem;
    color: var(--text);
}

.soft-skills h3:not(:first-child) { margin-top: 1.8rem; }

.skill-cat h3 i { color: var(--accent); margin-right: 0.5rem; }

.chips { display: flex; flex-wrap: wrap; gap: 0.6rem; }

.chip {
    background: rgba(34, 211, 238, 0.08);
    border: 1px solid rgba(34, 211, 238, 0.22);
    color: var(--text);
    font-size: 0.84rem;
    padding: 0.4rem 0.9rem;
    border-radius: 999px;
    transition: all 0.25s ease;
}

.chip:hover { background: rgba(34, 211, 238, 0.18); }

.chip-soft {
    background: rgba(148, 163, 184, 0.08);
    border-color: rgba(148, 163, 184, 0.25);
}

.chip-soft i { color: var(--muted); margin-right: 0.35rem; }

.soft-skills {
    background: linear-gradient(135deg, rgba(34, 211, 238, 0.06), rgba(59, 130, 246, 0.06));
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 1.8rem;
}

/* Projetos */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 1.6rem;
}

.project-card {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 1.9rem;
    display: flex;
    flex-direction: column;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 2px;
    background: var(--grad);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.project-card:hover {
    transform: translateY(-6px);
    border-color: rgba(34, 211, 238, 0.35);
    box-shadow: var(--shadow-card);
}

.project-card:hover::before { opacity: 1; }

.project-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1.1rem;
}

.project-head > i { font-size: 1.9rem; color: var(--accent); }

.project-tag {
    font-family: var(--font-tech);
    font-size: 0.62rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 0.3rem 0.7rem;
    border-radius: 999px;
    border: 1px solid;
}

.tag-hardware { color: #fb923c; border-color: rgba(251, 146, 60, 0.4); }
.tag-ai { color: #e879f9; border-color: rgba(232, 121, 249, 0.4); }
.tag-app { color: #34d399; border-color: rgba(52, 211, 153, 0.4); }
.tag-web { color: #22d3ee; border-color: rgba(34, 211, 238, 0.4); }
.tag-academic { color: #a78bfa; border-color: rgba(167, 139, 250, 0.4); }
.tag-private { color: #94a3b8; border-color: rgba(148, 163, 184, 0.4); }

.project-card h3 {
    font-family: var(--font-head);
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 0.6rem;
}

.project-card p { color: var(--muted); font-size: 0.94rem; flex: 1; margin-bottom: 1.2rem; }

.project-tech { display: flex; flex-wrap: wrap; gap: 0.5rem; margin-bottom: 1.3rem; }

.project-tech span {
    font-size: 0.75rem;
    color: var(--muted);
    background: rgba(148, 163, 184, 0.1);
    padding: 0.25rem 0.7rem;
    border-radius: 999px;
}

/* Timeline (trajetória) */
.timeline { position: relative; max-width: 720px; margin: 0 auto; padding-left: 30px; }

.timeline::before {
    content: '';
    position: absolute;
    left: 6px;
    top: 6px;
    bottom: 6px;
    width: 2px;
    background: linear-gradient(180deg, var(--accent), var(--accent-2));
    opacity: 0.5;
}

.timeline-item { position: relative; padding-bottom: 2.4rem; }

.timeline-dot {
    position: absolute;
    left: -30px;
    top: 6px;
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: var(--bg);
    border: 3px solid var(--accent);
    box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.15);
}

.timeline-content {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 18px;
    padding: 1.5rem;
    transition: border-color 0.3s ease, transform 0.3s ease;
}

.timeline-content:hover { border-color: rgba(34, 211, 238, 0.4); transform: translateX(4px); }

.timeline-type {
    font-family: var(--font-tech);
    font-size: 0.62rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--accent);
    border: 1px solid rgba(34, 211, 238, 0.4);
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    display: inline-block;
    margin-bottom: 0.6rem;
}

.timeline-content h3 { font-family: var(--font-head); font-size: 1.1rem; font-weight: 600; margin-bottom: 0.35rem; }

.timeline-content p { color: var(--muted); font-size: 0.92rem; }

/* Formação */
.edu-stack {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    max-width: 760px;
}

.edu-card {
    background: linear-gradient(135deg, var(--bg-3), #0c1424);
    border: 1px solid var(--border);
    border-radius: 24px;
    padding: 2.4rem;
    display: flex;
    gap: 2rem;
    align-items: flex-start;
    max-width: 760px;
    width: 100%;
    transition: border-color 0.3s ease;
}

.edu-card:hover { border-color: rgba(34, 211, 238, 0.4); }

.edu-icon {
    flex-shrink: 0;
    width: 64px;
    height: 64px;
    border-radius: 18px;
    background: rgba(34, 211, 238, 0.1);
    border: 1px solid rgba(34, 211, 238, 0.35);
    display: grid;
    place-items: center;
    font-size: 1.6rem;
    color: var(--accent);
}

.edu-info h3 { font-family: var(--font-head); font-size: 1.4rem; font-weight: 700; }

.edu-info h4 { color: var(--muted); font-weight: 500; font-size: 1rem; margin: 0.2rem 0 0.6rem; }

.edu-status {
    display: inline-block;
    font-size: 0.8rem;
    color: var(--accent);
    border: 1px solid rgba(34, 211, 238, 0.4);
    padding: 0.25rem 0.8rem;
    border-radius: 999px;
    margin-bottom: 0.9rem;
}

.edu-info p { color: var(--muted); font-size: 0.95rem; }

/* Contato */
.contact { text-align: center; }

.contact-lead { max-width: 620px; margin: -1rem auto 3rem; color: var(--muted); font-size: 1.05rem; }

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    max-width: 900px;
    margin: 0 auto;
}

.contact-card {
    background: var(--bg-3);
    border: 1px solid var(--border);
    border-radius: 22px;
    padding: 2rem 1.5rem;
    text-decoration: none;
    color: var(--text);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.contact-card:hover {
    transform: translateY(-6px);
    border-color: var(--accent);
    box-shadow: 0 18px 44px var(--accent-glow);
}

.contact-card i { font-size: 1.9rem; color: var(--accent); }

.contact-card h3 { font-family: var(--font-head); font-size: 1.15rem; font-weight: 600; }

.contact-card span { color: var(--muted); font-size: 0.9rem; }

/* Footer */
.footer {
    border-top: 1px solid var(--border);
    padding: 2.2rem 0;
    background: var(--bg-2);
    position: relative;
    z-index: 1;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

.footer-mark { font-size: 0.75rem; }

.footer p { color: var(--muted); font-size: 0.85rem; }

.back-top {
    width: 44px;
    height: 44px;
    display: grid;
    place-items: center;
    border-radius: 12px;
    border: 1px solid var(--border);
    color: var(--muted);
    text-decoration: none;
    transition: all 0.25s ease;
}

.back-top:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-3px); }

/* ---------- Responsivo ---------- */
@media (max-width: 900px) {
    .hero-content { grid-template-columns: 1fr; gap: 3rem; text-align: center; }
    .hero-desc { margin-left: auto; margin-right: auto; }
    .hero-buttons, .hero-socials { justify-content: center; }
    .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
    .skills-cats { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
    .section { padding: 80px 0; }

    .nav-menu {
        position: fixed;
        top: 72px;
        right: 0;
        height: calc(100vh - 72px);
        width: min(78vw, 320px);
        background: rgba(7, 11, 20, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        gap: 1.6rem;
        padding: 3rem 2.4rem;
        transform: translateX(100%);
        transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
        border-left: 1px solid var(--border);
        z-index: 999;
    }

    .nav-menu.open { transform: translateX(0); }

    .hamburger { display: flex; }

    .photo-ring, #profile-img, .avatar-fallback {
        width: 230px;
        height: 230px;
    }

    .edu-card { flex-direction: column; }
    .projects-grid { grid-template-columns: 1fr; }
}