:root {
    --bg-color: #050505;
    --card-bg: #121212;
    --text-main: #e0e0e0;
    --text-muted: #a0a0a0;
    --jade: #00f5d4;
    --purple: #9b5de5;
    --blue: #00b4d8;
    --gray: #6c757d;
}

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

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

h1, h2, h3 {
    font-family: 'Poppins', sans-serif;
    color: #ffffff;
}

a {
    text-decoration: none;
    color: inherit;
    transition: 0.3s;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

section {
    padding: 80px 0;
    border-bottom: 1px solid #222;
}

/* ================= HEADER ================= */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(5, 5, 5, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid #333;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--jade);
}

.nav-links {
    display: flex;
    gap: 20px;
}

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

/* ================= HERO ================= */
#introduction {
    height: 100vh;
    display: flex;
    align-items: center;
    text-align: center;
    background: radial-gradient(circle at center, #1a1a1a 0%, #050505 70%);
}

.hero-content { width: 100%; }

.hero-content h1 {
    font-size: 3.5rem;
    margin-bottom: 10px;
}

.hero-content h1 span {
    background: linear-gradient(to right, var(--jade), var(--purple));
    background-clip: text;
    -webkit-background-clip: text;
    color: transparent;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border: 2px solid var(--jade);
    color: var(--jade);
    border-radius: 5px;
    margin-top: 20px;
    font-weight: 600;
}

.btn:hover {
    background: var(--jade);
    color: #000;
    box-shadow: 0 0 15px var(--jade);
}

/* ================= CARDS ================= */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    margin-top: 40px;
}

.card {
    background: var(--card-bg);
    padding: 30px;
    border-radius: 10px;
    border-left: 4px solid var(--purple);
}

.card-jade { border-left-color: var(--jade); }
.highlight-jade { color: var(--jade); }
.highlight-purple { color: var(--purple); }

/* ================= SKILLS CATEGORIES ================= */
.skill-category-title {
    margin: 40px 0 20px 0;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

/* Cores das Abas */
.title-blue { color: var(--blue); }
.title-purple { color: var(--purple); }
.title-jade { color: var(--jade); }
.title-gray { color: var(--gray); }

.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 15px;
    margin-bottom: 10px;
}

.skill-item {
    background: var(--card-bg);
    padding: 25px 10px;
    border-radius: 10px;
    text-align: center;
    border: 1px solid #222;
    transition: all 0.3s ease;
}

.skill-item:hover {
    transform: translateY(-5px);
    background: #1a1a1a;
}

/* Bordas de destaque */
.border-blue:hover { border-color: var(--blue); }
.border-purple:hover { border-color: var(--purple); }
.border-jade:hover { border-color: var(--jade); }
.border-gray:hover { border-color: var(--gray); }

.skill-item i {
    font-size: 2.2rem;
    margin-bottom: 10px;
    display: block;
}

/* --- LOGICA DE CORES DOS ICONES --- */

/* Concluídos seguindo a cor da aba */
.done-blue i { color: var(--blue); }
.done-purple i { color: var(--purple); }
.done-gray i { color: var(--gray); }

/* Backend: Foco atual com roxo menos destacado */
.focus-purple i { color: rgba(155, 93, 229, 0.4); } 

/* Básico e outros */
.basic i { color: var(--gray); }
.todo i { color: #333; }

.skill-item h4 {
    font-size: 0.95rem;
    margin-bottom: 5px;
}

.skill-item small {
    color: var(--text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* Texto Foco Atual mais transparente */
.text-faded {
    opacity: 0.4;
}

/* ================= STATUS ================= */
.status-list { margin-top: 30px; list-style: none; }
.status-item { margin-bottom: 15px; padding-left: 15px; }
.status-jade { border-left: 2px solid var(--jade); }
.status-purple { border-left: 2px solid var(--purple); }
.status-blue { border-left: 2px solid var(--blue); }

/* ================= PROJECTS SECTION ================= */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 40px;
}

.project-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid #222;
    transition: transform 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
}

.project-card:hover {
    transform: translateY(-10px);
    border-color: var(--purple);
}

.project-content {
    padding: 25px;
}

.project-tag {
    color: var(--jade);
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.project-card h3 {
    margin-bottom: 15px;
    font-size: 1.5rem;
}

.project-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.project-techs {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 25px;
}

.project-techs span {
    background: #1a1a1a;
    padding: 5px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-main);
    border: 1px solid #333;
}

.btn-project {
    display: inline-block;
    padding: 10px 20px;
    background: transparent;
    border: 1px solid var(--purple);
    color: var(--purple);
    border-radius: 5px;
    font-weight: 600;
    transition: 0.3s;
}

.btn-project:hover {
    background: var(--purple);
    color: #fff;
    box-shadow: 0 0 15px rgba(155, 93, 229, 0.4);
}

.project-card.placeholder {
    border: 2px dashed #333;
    background: transparent;
    justify-content: center;
    align-items: center;
    text-align: center;
    opacity: 0.5;
}

/* ================= FOOTER ================= */
footer { padding: 50px 0; background: #000; text-align: center; }
.social-links { display: flex; justify-content: center; gap: 20px; font-size: 2rem; margin-top: 20px; }
.social-links a:hover { color: var(--jade); }
.footer-copy { margin-top: 30px; font-size: 0.8rem; color: #444; }

/* ================= MOBILE ================= */
@media (max-width: 768px) {
    .grid-2 { grid-template-columns: 1fr; }
    .hero-content h1 { font-size: 2.5rem; }
    .skills-grid { grid-template-columns: repeat(2, 1fr); }
}