@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;600&display=swap');

*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    text-decoration: none;
    border: none;
    outline: none;
    scroll-behavior: smooth;
}

:root {
    --bg: #0d1117;
    --bg2: #161b22;
    --bg3: #1c2128;
    --text: #e6edf3;
    --text-muted: #8b949e;
    --green: #39d353;
    --green-dim: #1a7f37;
    --green-glow: rgba(57, 211, 83, 0.15);
    --border: rgba(255,255,255,0.08);
    --border-green: rgba(57, 211, 83, 0.3);
    --mono: 'JetBrains Mono', monospace;
}

html {
    font-size: 62.5%;
    overflow-x: hidden;
    scroll-behavior: smooth;
}

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'Poppins', sans-serif;
    font-size: 1.6rem;
    line-height: 1.6;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--green-dim); border-radius: 3px; }

/* ===== HEADER ===== */
.header {
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    padding: 1.8rem 9%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    transition: background .3s, border .3s;
}

.header.sticky {
    background: rgba(13,17,23,0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
}

.logo {
    font-family: var(--mono);
    font-size: 2.4rem;
    font-weight: 600;
    color: var(--text);
    letter-spacing: -0.05em;
}

.logo-dot { color: var(--green); }

.navbar a {
    font-size: 1.4rem;
    color: var(--text-muted);
    margin-left: 3.5rem;
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: color .2s;
    position: relative;
}

.navbar a::after {
    content: '';
    position: absolute;
    bottom: -4px; left: 0;
    width: 0; height: 2px;
    background: var(--green);
    transition: width .3s;
}

.navbar a:hover,
.navbar a.active {
    color: var(--green);
}

.navbar a:hover::after,
.navbar a.active::after {
    width: 100%;
}

#menu-icon {
    font-size: 3rem;
    color: var(--text);
    display: none;
    cursor: pointer;
}

/* ===== SECTIONS ===== */
section {
    padding: 10rem 9% 6rem;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-tag {
    font-family: var(--mono);
    font-size: 1.3rem;
    color: var(--green);
    display: block;
    margin-bottom: 1.2rem;
    letter-spacing: 0.05em;
}

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

.heading {
    font-size: 4.2rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 4rem;
    color: var(--text);
}

.heading span { color: var(--green); }

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.2rem 2.8rem;
    border-radius: 0.8rem;
    font-size: 1.5rem;
    font-weight: 600;
    cursor: pointer;
    transition: all .25s;
    font-family: 'Poppins', sans-serif;
}

.btn-primary {
    background: var(--green);
    color: #0d1117;
    border: 2px solid var(--green);
}

.btn-primary:hover {
    background: transparent;
    color: var(--green);
    box-shadow: 0 0 20px var(--green-glow);
}

.btn-outline {
    background: transparent;
    color: var(--green);
    border: 2px solid var(--border-green);
}

.btn-outline:hover {
    background: var(--green-glow);
    border-color: var(--green);
}

.btn-full { width: 100%; justify-content: center; }

/* ===== HOME ===== */
.home {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    gap: 4rem;
    min-height: 100vh;
    padding-top: 12rem;
    position: relative;
}

.home-content {
    flex: 1;
    max-width: 58rem;
}

.home-greeting {
    font-family: var(--mono);
    font-size: 1.4rem;
    color: var(--green);
    margin-bottom: 1rem;
}

.home-content h1 {
    font-size: 6.4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.6rem;
    color: var(--text);
}

.home-content h1 span { color: var(--green); }

.typed-wrapper {
    font-family: var(--mono);
    font-size: 1.8rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    display: flex;
    align-items: center;
    gap: 0.3rem;
}

.typed-prefix { color: var(--green); }

.cursor {
    color: var(--green);
    animation: blink 1s infinite;
}

@keyframes blink {
    0%, 100% { opacity: 1; }
    50% { opacity: 0; }
}

.home-desc {
    font-size: 1.6rem;
    color: var(--text-muted);
    line-height: 1.7;
    margin-bottom: 3rem;
    max-width: 50rem;
}

.home-actions {
    display: flex;
    gap: 1.6rem;
    flex-wrap: wrap;
    margin-bottom: 3.5rem;
}

.social-media {
    display: flex;
    gap: 1.2rem;
}

.social-media a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4.4rem;
    height: 4.4rem;
    border: 1px solid var(--border-green);
    border-radius: 50%;
    font-size: 2rem;
    color: var(--green);
    transition: all .3s;
}

.social-media a:hover {
    background: var(--green);
    color: var(--bg);
    box-shadow: 0 0 16px var(--green-glow);
}

.home-img {
    position: relative;
    flex-shrink: 0;
}

.img-frame {
    position: relative;
    width: 36rem;
    height: 36rem;
    border-radius: 50%;
    overflow: hidden;
    border: 3px solid var(--border-green);
    box-shadow: 0 0 40px var(--green-glow), 0 0 80px rgba(57,211,83,0.06);
}

.img-frame img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: top center;
    filter: brightness(0.95);
}

.img-glow {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 42rem;
    height: 42rem;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(57,211,83,0.08) 0%, transparent 70%);
    pointer-events: none;
    animation: pulse 4s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.6; transform: translate(-50%, -50%) scale(1); }
    50% { opacity: 1; transform: translate(-50%, -50%) scale(1.05); }
}

.scroll-indicator {
    position: absolute;
    bottom: 3rem;
    left: 50%;
    transform: translateX(-50%);
}

.scroll-indicator span {
    display: block;
    width: 2px;
    height: 4rem;
    background: linear-gradient(to bottom, var(--green), transparent);
    margin: 0 auto;
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% { transform: scaleY(0); transform-origin: top; opacity: 1; }
    50% { transform: scaleY(1); transform-origin: top; opacity: 1; }
    100% { transform: scaleY(1); transform-origin: bottom; opacity: 0; }
}

/* ===== SOBRE ===== */
.sobre {
    flex-direction: row;
    align-items: center;
    gap: 6rem;
    background: var(--bg2);
}

.sobre-img {
    flex-shrink: 0;
}

.sobre-img .img-frame {
    width: 30rem;
    height: 30rem;
}

.sobre-content { flex: 1; }

.sobre-content p {
    color: var(--text-muted);
    font-size: 1.6rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
}

.sobre-content strong { color: var(--green); font-weight: 600; }

.sobre-stats {
    display: flex;
    gap: 3rem;
    margin: 3rem 0;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
}

.stat-num {
    font-size: 3.6rem;
    font-weight: 800;
    color: var(--green);
    font-family: var(--mono);
    line-height: 1;
}

.stat-label {
    font-size: 1.3rem;
    color: var(--text-muted);
    margin-top: 0.4rem;
}

/* ===== HABILIDADES ===== */
.habilidades {
    min-height: auto;
    padding: 10rem 9%;
}

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

.skills-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 2rem;
}

.skill-category {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 1.2rem;
    padding: 2.5rem;
    transition: border-color .3s, transform .3s;
}

.skill-category:hover {
    border-color: var(--border-green);
    transform: translateY(-4px);
}

.skill-cat-icon {
    width: 5rem;
    height: 5rem;
    background: var(--green-glow);
    border: 1px solid var(--border-green);
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.skill-cat-icon i {
    font-size: 2.4rem;
    color: var(--green);
}

.skill-category h3 {
    font-size: 1.7rem;
    font-weight: 600;
    color: var(--text);
    margin-bottom: 1.5rem;
}

.skill-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
}

.skill-tags span {
    font-family: var(--mono);
    font-size: 1.2rem;
    padding: 0.4rem 1rem;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 0.6rem;
    color: var(--text-muted);
    transition: all .2s;
}

.skill-category:hover .skill-tags span {
    border-color: rgba(57,211,83,0.2);
    color: var(--text);
}

/* ===== PROJETOS ===== */
.projetos {
    min-height: auto;
    padding: 10rem 9%;
    background: var(--bg2);
}

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

.projetos-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    margin-top: 2rem;
}

.projeto-card {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 1.6rem;
    padding: 3rem;
    transition: border-color .3s, transform .3s;
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
}

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

.projeto-card.destaque {
    grid-column: 1 / -1;
    border-color: var(--border-green);
    background: linear-gradient(135deg, var(--bg3) 0%, rgba(57,211,83,0.04) 100%);
}

.projeto-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.projeto-badge {
    font-family: var(--mono);
    font-size: 1.2rem;
    padding: 0.4rem 1.2rem;
    background: var(--green-glow);
    border: 1px solid var(--border-green);
    border-radius: 2rem;
    color: var(--green);
}

.projeto-links a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 3.6rem;
    height: 3.6rem;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 0.8rem;
    color: var(--text-muted);
    font-size: 1.8rem;
    transition: all .2s;
}

.projeto-links a:hover {
    border-color: var(--green);
    color: var(--green);
}

.projeto-card h3 {
    font-size: 2.2rem;
    font-weight: 700;
    color: var(--text);
}

.projeto-card p {
    font-size: 1.5rem;
    color: var(--text-muted);
    line-height: 1.7;
    flex: 1;
}

.projeto-tech {
    display: flex;
    flex-wrap: wrap;
    gap: 0.8rem;
    margin-top: auto;
}

.projeto-tech span {
    font-family: var(--mono);
    font-size: 1.2rem;
    padding: 0.3rem 1rem;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 0.6rem;
    color: var(--text-muted);
}

/* ===== CONTATO ===== */
.contato {
    min-height: auto;
    padding: 10rem 9%;
}

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

.contato-sub {
    text-align: center;
    color: var(--text-muted);
    font-size: 1.6rem;
    margin-top: -2rem;
    margin-bottom: 5rem;
}

.contato-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 4rem;
    align-items: start;
}

.contato-info {
    display: flex;
    flex-direction: column;
    gap: 1.6rem;
}

.info-card {
    display: flex;
    align-items: flex-start;
    gap: 1.6rem;
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 1.2rem;
    padding: 2rem;
    transition: border-color .3s;
}

.info-card:hover { border-color: var(--border-green); }

.info-card > i {
    font-size: 2.4rem;
    color: var(--green);
    flex-shrink: 0;
    margin-top: 0.2rem;
}

.info-card div {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.info-label {
    font-size: 1.2rem;
    color: var(--text-muted);
    font-family: var(--mono);
}

.info-card a,
.info-card span {
    font-size: 1.5rem;
    color: var(--text);
    transition: color .2s;
}

.info-card a:hover { color: var(--green); }

/* FORM */
#contact-form {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 1.6rem;
    padding: 3.5rem;
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.6rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
}

.form-group label {
    font-size: 1.4rem;
    color: var(--text-muted);
    font-weight: 500;
}

.form-group input,
.form-group textarea {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 0.8rem;
    padding: 1.2rem 1.6rem;
    font-size: 1.5rem;
    color: var(--text);
    font-family: 'Poppins', sans-serif;
    transition: border-color .2s, box-shadow .2s;
    width: 100%;
}

.form-group input:focus,
.form-group textarea:focus {
    border-color: var(--border-green);
    box-shadow: 0 0 0 3px var(--green-glow);
}

.form-group textarea { resize: vertical; min-height: 12rem; }

input::placeholder, textarea::placeholder { color: var(--text-muted); opacity: 0.5; }

#success-message {
    background: rgba(57,211,83,0.1);
    border: 1px solid var(--border-green);
    border-radius: 0.8rem;
    padding: 1.4rem 2rem;
    color: var(--green);
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    text-align: center;
    justify-content: center;
}

#success-message i { font-size: 2rem; }

/* ===== FOOTER ===== */
.footer {
    background: var(--bg2);
    border-top: 1px solid var(--border);
    padding: 3rem 9%;
}

.footer-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer-inner p {
    font-size: 1.4rem;
    color: var(--text-muted);
}

.back-top {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 4rem;
    height: 4rem;
    background: var(--green);
    border-radius: 0.8rem;
    color: var(--bg);
    font-size: 2rem;
    transition: box-shadow .2s;
}

.back-top:hover {
    box-shadow: 0 0 16px var(--green-glow);
}

/* ===== BREAKPOINTS ===== */
@media (max-width: 1100px) {
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 991px) {
    html { font-size: 57%; }

    .header { padding: 1.6rem 4%; }

    section { padding: 10rem 4% 6rem; }

    .home {
        flex-direction: column-reverse;
        text-align: center;
        padding-top: 14rem;
        gap: 3rem;
    }

    .home-desc { margin: 0 auto 3rem; }

    .home-actions { justify-content: center; }

    .social-media { justify-content: center; }

    .img-frame { width: 26rem; height: 26rem; }

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

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

    .sobre-content .btn { margin: 0 auto; }

    .contato-wrapper { grid-template-columns: 1fr; }

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

    .projeto-card.destaque { grid-column: 1; }
}

@media (max-width: 768px) {
    #menu-icon { display: block; }

    .navbar {
        position: absolute;
        top: 100%; left: 0;
        width: 100%;
        padding: 2rem 4%;
        background: rgba(13,17,23,0.98);
        backdrop-filter: blur(10px);
        border-top: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        display: none;
        flex-direction: column;
    }

    .navbar.active { display: flex; }

    .navbar a {
        margin: 0;
        padding: 1.2rem 0;
        font-size: 1.6rem;
        border-bottom: 1px solid var(--border);
    }

    .navbar a:last-child { border-bottom: none; }

    .home-content h1 { font-size: 4.8rem; }

    .heading { font-size: 3.6rem; }

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

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

@media (max-width: 480px) {
    html { font-size: 52%; }

    .home-content h1 { font-size: 4rem; }

    .img-frame { width: 22rem; height: 22rem; }

    .home-actions { flex-direction: column; }

    .home-actions .btn { width: 100%; justify-content: center; }
}