/* ============================================================
   Evaldo Butzke | Portfolio — main.css
   ============================================================ */

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

/* ── RESET & ROOT ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --green:       #b8f55a;
    --green-dim:   #7ec430;
    --purple:      #a87fd4;
    --purple-dark: #3d2660;
    --coral:       #f07a6a;
    --bg:          #080b10;
    --bg3:         #141b24;
    --surface:     #161e28;
    --border:      rgba(168, 127, 212, 0.18);
    --text:        #d4dce8;
    --text-dim:    #6a7d94;
    --mono:        'JetBrains Mono', monospace;
    --display:     'Syne', sans-serif;
}

html { scroll-behavior: smooth; }

body {
    font-family: var(--mono);
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
}

/* ── NOISE OVERLAY ── */
body::before {
    content: '';
    position: fixed; inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
    pointer-events: none; z-index: 999; opacity: 0.4;
}

/* ── AMBIENT BLOBS ── */
.blob {
    position: fixed; border-radius: 50%; filter: blur(120px);
    opacity: 0.11; pointer-events: none; z-index: 0;
    animation: drift 20s ease-in-out infinite alternate;
}
.blob-1 { width:600px; height:600px; background:var(--purple); top:-200px;  left:-200px; }
.blob-2 { width:500px; height:500px; background:var(--green);  bottom:-150px; right:-150px; animation-delay:-10s; }

/* ── HEADER ── */
header {
    position: sticky; top: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 6%;
    background: rgba(8, 11, 16, 0.85);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
}

.logo {
    font-family: var(--mono); font-size: 1.1rem; font-weight: 700;
    text-decoration: none; display: flex; align-items: center; gap: 2px;
}
.logo .bracket { color: var(--purple); }
.logo .name    { color: var(--green); }

nav { display: flex; gap: 8px; }

.nav-link {
    color: var(--text-dim); text-decoration: none;
    font-size: 0.78rem; font-weight: 600; letter-spacing: 0.1em;
    text-transform: uppercase; padding: 7px 16px; border-radius: 6px;
    border: 1px solid transparent; transition: all 0.25s;
}
.nav-link:hover,
.nav-link.active {
    color: var(--green); border-color: var(--border);
    background: rgba(184, 245, 90, 0.06);
}

/* ── BUTTONS ── */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 11px 24px; border-radius: 8px;
    font-family: var(--mono); font-size: 0.8rem; font-weight: 700;
    letter-spacing: 0.05em; text-decoration: none; text-transform: uppercase;
    transition: all 0.25s; cursor: pointer; border: none;
}
.btn-primary { background: var(--green); color: #080b10; }
.btn-primary:hover { background: #ceff7a; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(184,245,90,0.3); }
.btn-ghost   { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--purple); color: var(--purple); transform: translateY(-2px); }

/* ── SECTION LABEL ── */
.section-label {
    display: flex; align-items: center; gap: 12px;
    font-size: 0.7rem; font-weight: 700; letter-spacing: 0.2em;
    text-transform: uppercase; color: var(--text-dim); margin-bottom: 40px;
}
.section-label::after { content:''; flex:1; height:1px; background:var(--border); }
.section-label span   { color: var(--green); margin-right: 4px; }

/* ── DIVIDER ── */
.divider-line { height:1px; background:linear-gradient(90deg, transparent, var(--border), transparent); }

/* ── FOOTER ── */
footer {
    position: relative; z-index: 1;
    border-top: 1px solid var(--border); padding: 28px 6%;
    text-align: center; margin-top: auto;
}
.footer-copy { font-size: 0.78rem; color: var(--text-dim); }
.footer-copy span { color: var(--coral); }

/* ── SCROLL REVEAL ── */
.reveal { opacity:0; transform:translateY(24px); transition:opacity 0.6s, transform 0.6s; }
.reveal.visible { opacity:1; transform:translateY(0); }

/* ── ANIMATIONS ── */
@keyframes drift  { from{transform:translate(0,0)}   to{transform:translate(40px,30px)} }
@keyframes spin   { to{transform:rotate(360deg)} }
@keyframes float  { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-8px)} }
@keyframes fadeUp { from{opacity:0;transform:translateY(20px)} to{opacity:1;transform:translateY(0)} }
@keyframes fadeIn { from{opacity:0;transform:scale(0.96)}      to{opacity:1;transform:scale(1)} }

/* ── RESPONSIVE SHARED ── */
@media (max-width: 680px) {
    header { flex-wrap:wrap; gap:12px; padding:16px 5%; }
    nav    { width:100%; justify-content:center; }
    .nav-link { font-size:0.72rem; padding:6px 12px; }
    footer { padding:24px 5%; }
}