/* ============================================================
   Portfolio — Renata Rossetti Leandro
   ============================================================ */

:root {
  --bg:        #0c0c0e;
  --bg-alt:    #111114;
  --panel:     #18181c;
  --panel-2:   #1f1f25;
  --border:    #2a2a31;
  --text:      #f2f2f4;
  --muted:     #a7a7b0;
  --muted-2:   #8a8a93;
  --accent:    #f5c518;
  --accent-2:  #ffd95a;
}

* { scroll-behavior: smooth; }

html, body {
  background: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  scroll-behavior: smooth;
}

body { overflow-x: hidden; }

.text-accent { color: var(--accent) !important; }
.text-muted-2 { color: var(--muted-2) !important; }

/* ---------- Pre-loader ---------- */
#preloader {
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: var(--bg);
  transition: opacity .5s ease, visibility .5s ease;
}
#preloader.loaded { opacity: 0; visibility: hidden; }
.loader-ring {
  width: 56px; height: 56px;
  margin: 0 auto;
  border: 4px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}
.loader-text { letter-spacing: 4px; color: var(--accent); }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Navbar ---------- */
#mainNav {
  background: rgba(12,12,14,.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  padding: .65rem 0;
}
#mainNav .navbar-brand { font-size: 1.35rem; letter-spacing: .5px; }
#mainNav .nav-link {
  color: var(--muted);
  font-weight: 500;
  padding: .4rem .9rem !important;
  transition: color .2s ease;
}
#mainNav .nav-link:hover,
#mainNav .nav-link.active { color: var(--text); }
.navbar-toggler { border-color: var(--border); color: var(--text); }

/* ---------- Buttons ---------- */
.btn-accent {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #111114;
  font-weight: 600;
  border-radius: 10px;
  padding: .55rem 1.3rem;
  transition: transform .15s ease, background .2s ease;
}
.btn-accent:hover { background: var(--accent-2); color: #111114; }
.btn-outline-light {
  border-radius: 10px;
  font-weight: 600;
  padding: .55rem 1.3rem;
  border-color: var(--border);
}
.btn-outline-light:hover { background: var(--panel-2); border-color: var(--accent); color: #fff; }

/* ---------- Sections ---------- */
.section { padding: 6rem 0; position: relative; }
.section-alt { background: var(--bg-alt); }
.section-tag {
  display: inline-block;
  color: var(--accent);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: .5rem;
}
.section-title { font-size: 2.2rem; font-weight: 700; }
.section-sub { color: var(--muted-2); max-width: 560px; margin: .75rem auto 0; }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  padding-top: 7rem;
  background:
    radial-gradient(900px 500px at 80% -10%, rgba(245,197,24,.16), transparent 60%),
    radial-gradient(700px 500px at 0% 110%, rgba(245,197,24,.08), transparent 60%),
    var(--bg);
}
.hero-eyebrow { color: var(--accent); letter-spacing: 3px; font-weight: 700; font-size: .85rem; }
.hero-title { font-size: clamp(2.2rem, 5vw, 3.6rem); font-weight: 800; line-height: 1.1; }
.hero-typed { font-size: 1.4rem; color: var(--muted); }
.hero-lead { color: var(--muted); max-width: 540px; }
.type-cursor { color: var(--accent); animation: blink 1s steps(1) infinite; font-weight: 400; }
@keyframes blink { 50% { opacity: 0; } }

.hero-avatar {
  width: 320px; max-width: 80vw;
  aspect-ratio: 1;
  border-radius: 50%;
  padding: 6px;
  background: linear-gradient(145deg, var(--accent), transparent 60%);
  box-shadow: 0 20px 60px rgba(0,0,0,.5);
}
.hero-avatar img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: 50%;
  background: var(--panel);
}

/* ---------- Panels / cards ---------- */
.card-panel {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 2rem;
}

/* ---------- Timeline ---------- */
.timeline { list-style: none; margin: 0; padding: 0; position: relative; }
.timeline li { position: relative; padding: 0 0 1.6rem 1.6rem; border-left: 2px solid var(--border); }
.timeline li:last-child { padding-bottom: 0; border-left-color: transparent; }
.timeline-dot {
  position: absolute; left: -7px; top: 2px;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px rgba(245,197,24,.18);
}

/* ---------- Skills grid ---------- */
.skill-tile {
  display: flex; flex-direction: column; align-items: center; gap: .7rem;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.4rem .75rem;
  height: 100%;
  transition: transform .15s ease, border-color .2s ease;
}
.skill-tile:hover { transform: translateY(-4px); border-color: var(--accent); }
.skill-tile img { width: 52px; height: 52px; object-fit: contain; }
.skill-tile span { font-size: .85rem; color: var(--muted); font-weight: 500; }
/* monochrome logos (e.g. Leaflet) need to be visible on dark bg */
.logo-mono { filter: invert(1) brightness(1.8); }
.skill-icon {
  width: 52px; height: 52px;
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; color: var(--accent);
}

/* ---------- Projects ---------- */
.project-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  overflow: hidden;
  height: 100%;
  display: flex; flex-direction: column;
  transition: border-color .2s ease;
}
.project-card:hover { border-color: var(--accent); }
.project-thumb { aspect-ratio: 16 / 9; overflow: hidden; background: var(--panel-2); }
.project-thumb img { width: 100%; height: 100%; object-fit: cover; }
.project-body { padding: 1.5rem; display: flex; flex-direction: column; flex: 1; }

/* ---------- Tech badges ---------- */
.tech-stack { display: flex; flex-wrap: wrap; gap: .4rem; }
.badge-tech {
  font-size: .72rem;
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--muted);
  padding: .22rem .6rem;
  border-radius: 999px;
}

/* ---------- Forms ---------- */
.form-label { color: var(--muted); font-weight: 500; }
.form-control {
  background: var(--panel-2);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 10px;
  padding: .7rem .9rem;
}
.form-control:focus {
  background: var(--panel-2);
  color: var(--text);
  border-color: var(--accent);
  box-shadow: 0 0 0 .2rem rgba(245,197,24,.25);
}
.form-status { font-weight: 500; font-size: .95rem; }
.form-status.ok { color: #4ade80; }
.form-status.err { color: #f87171; }

/* ---------- Modals ---------- */
.modal-content {
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 18px;
}
.modal-header, .modal-footer { border-color: var(--border); }

/* ---------- Footer ---------- */
.footer { padding: 3rem 0; background: var(--bg-alt); border-top: 1px solid var(--border); }
.social a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 44px; height: 44px; margin: 0 .35rem;
  border-radius: 50%;
  background: var(--panel);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 1.1rem;
  transition: all .2s ease;
}
.social a:hover { color: #111114; background: var(--accent); border-color: var(--accent); transform: translateY(-3px); }

/* ---------- Responsive ---------- */
@media (max-width: 991px) {
  .section { padding: 4.5rem 0; }
  .hero { padding-top: 6rem; text-align: center; }
  .hero-lead { margin-left: auto; margin-right: auto; }
  .hero .d-flex { justify-content: center; }
}