/* ====================================================
   shared.css — Design tokens & shared components
   Portfólio Gisele.Dev
   ==================================================== */

/* ── FONTS ── */
@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;1,9..40,300&display=swap');

/* ── TOKENS ── */
:root {
  --bg:            #0a0a0f;
  --bg2:           #111118;
  --bg3:           #16161f;
  --card:          #1a1a2a;
  --accent:        #b48ef5;
  --accent2:       #7c5cbf;
  --accent-glow:   rgba(180,142,245,.18);
  --accent-glow2:  rgba(180,142,245,.07);
  --text:          #e8e4f0;
  --text-muted:    #8b859e;
  --text-dim:      #534e62;
  --border:        rgba(180,142,245,.12);
  --border-strong: rgba(180,142,245,.28);
  --accent-light:  #a78bfa;
  --accent-bg:     rgba(124,58,237,.2);
  --grad:          linear-gradient(135deg,#667eea 0%,#764ba2 100%);
}

/* ── RESET ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: 'DM Sans', sans-serif;
  font-weight: 300;
  min-height: 100vh;
  overflow-x: hidden;
}

/* 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='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.04'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: .5;
}

/* ── CONTAINER ── */
.container {
  max-width: 1600px;
  margin: 0 auto;
  padding: 0 clamp(16px, 5vw, 40px);
}

/* Lang Toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  background-color: var(--card);
  border: 1px solid var(--border);
  border-radius: 30px;
  padding: 4px 5px;
  cursor: pointer;
  transition: border-color .3s;
  user-select: none;
  flex-shrink: 0;
}
.lang-toggle:hover { border-color: var(--accent); }
.lang-option {
  font-size: 11px;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  transition: all .3s;
  color: var(--text-muted);
  letter-spacing: .06em;
}
.lang-option.active { background: var(--grad); color: #fff; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
  border-radius: 6px;
  transition: background .2s;
  flex-shrink: 0;
}
.hamburger:hover { background: var(--card); }
.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all .3s;
  transform-origin: center;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  flex-direction: column;
  background: rgba(10,10,15,.98);
  border-top: 1px solid var(--border);
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
}
.mobile-nav.open { max-height: 400px; padding: 8px 0; }
.mobile-nav a {
  color: #fff;
  text-decoration: none;
  font-size: 15px;
  padding: 13px clamp(16px, 5vw, 40px);
  border-bottom: 1px solid var(--border);
  transition: background .2s, color .2s;
  display: block;
  letter-spacing: .04em;
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav a:hover { background: var(--card); color: var(--accent-light); }

/* ── responsive: show hamburger ── */
@media (max-width: 820px) {
  .nav-links  { display: none; }
  .hamburger  { display: flex; }
  .mobile-nav { display: flex; }
}

/* ====================================================
   HERO — base pattern  (each page adds its own layout)
   ==================================================== */

/* Pill label with pulse dot */
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .75rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow2);
  border: 1px solid var(--border-strong);
  padding: .38rem 1rem;
  border-radius: 100px;
  margin-bottom: 1.8rem;
  animation: fadeUp .6s ease both;
  align-self: flex-start;
  width: fit-content;
}
.hero-label::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--accent);
  animation: pulse 2s ease-in-out infinite;
}

/* Title */
.hero h1 {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  line-height: 1;
  letter-spacing: -.04em;
  animation: fadeUp .6s .1s ease both;
}
.hero h1 em {
  font-style: normal;
  color: transparent;
  -webkit-text-stroke: 1px var(--accent);
}

/* Sub text */
.hero-sub {
  margin-top: 1.5rem;
  font-size: clamp(.9rem, 2vw, 1.05rem);
  color: var(--text-muted);
  max-width: 520px;
  line-height: 1.75;
  animation: fadeUp .6s .2s ease both;
}

/* Stats row */
.hero-stats {
  display: flex;
  gap: 3rem;
  margin-top: 3rem;
  animation: fadeUp .6s .3s ease both;
  flex-wrap: wrap;
}
.stat-num {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(1.8rem, 3vw, 2.4rem);
  color: var(--accent);
  line-height: 1;
  display: block;
}
.stat-label {
  font-size: .75rem;
  color: var(--text-dim);
  letter-spacing: .08em;
  text-transform: uppercase;
}

/* Divider at hero bottom */
.hero-divider {
  position: absolute;
  bottom: 0;
  left: clamp(16px,5vw,40px);
  right: clamp(16px,5vw,40px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-strong), transparent);
}

/* ====================================================
   COMMON BUTTONS
   ==================================================== */
.btn {
  padding: clamp(11px,2vw,15px) clamp(22px,4vw,40px);
  border-radius: 30px;
  text-decoration: none;
  font-weight: 500;
  transition: all .3s;
  cursor: pointer;
  border: none;
  font-size: clamp(13px,2vw,15px);
  white-space: nowrap;
  display: inline-block;
}
.btn-primary { background: var(--grad); color: #fff; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 10px 25px rgba(124,58,237,.3); }
.btn-secondary { background: transparent; color: #fff; border: 2px solid var(--accent); }
.btn-secondary:hover { background: var(--accent-bg); }

/* ====================================================
   FILTER BUTTONS  (certifications & projects)
   ==================================================== */
.filters-section {
  padding: clamp(1.5rem,3vw,2.5rem) clamp(16px,5vw,40px);
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}
.filter-group { display: flex; gap: .6rem; flex-wrap: wrap; }
.filter-btn {
  padding: .45rem 1.1rem;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text-muted);
  font-family: 'DM Sans', sans-serif;
  font-size: .82rem;
  cursor: pointer;
  transition: all .2s;
  letter-spacing: .02em;
}
.filter-btn:hover { border-color: var(--border-strong); color: var(--text); }
.filter-btn.active { background: var(--accent); border-color: var(--accent); color: #0a0a0f; font-weight: 500; }

/* ====================================================
   FOOTER CTA (shared between certifications & projects)
   ==================================================== */
.footer-cta {
  padding: clamp(3rem,6vw,5rem) clamp(16px,5vw,40px);
  text-align: center;
  border-top: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}
.footer-cta::before {
  content: '';
  position: absolute;
  top: -100px;
  left: 50%;
  transform: translateX(-50%);
  width: 500px;
  height: 300px;
  background: radial-gradient(ellipse, rgba(180,142,245,.1) 0%, transparent 70%);
  pointer-events: none;
}
.footer-cta h2 {
  font-family: 'Syne', sans-serif;
  font-weight: 800;
  font-size: clamp(2rem,4vw,3rem);
  letter-spacing: -.03em;
  margin-bottom: 1rem;
}
.footer-cta h2 span { color: var(--accent); }
.footer-cta p { color: var(--text-muted); margin-bottom: 2rem; }
.cta-btn {
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  padding: .9rem 2rem;
  background: var(--accent);
  color: #0a0a0f;
  font-family: 'DM Sans', sans-serif;
  font-weight: 500;
  font-size: .9rem;
  text-decoration: none;
  border-radius: 100px;
  transition: all .25s;
  box-shadow: 0 0 30px rgba(180,142,245,.25);
}
.cta-btn:hover { background: #c9a8ff; box-shadow: 0 0 50px rgba(180,142,245,.4); transform: translateY(-2px); }

.footer-bottom {
  padding: 1.5rem clamp(16px,5vw,40px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
  gap: .5rem;
}
.footer-bottom p { font-size: .82rem; color: var(--text-dim); }
.footer-bottom a { color: var(--accent); text-decoration: none; }

/* ====================================================
   ANIMATIONS
   ==================================================== */
@keyframes fadeUp   { from { opacity:0; transform:translateY(22px) } to { opacity:1; transform:translateY(0) } }
@keyframes pulse    { 0%,100%{opacity:1} 50%{opacity:.4} }
@keyframes girlFloat { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-14px)} }