/* =========================================================
   VARIABLES & RESET
   ========================================================= */
:root {
  --bg:        #0a0e1a;
  --bg-rgb:    10, 14, 26;
  --bg2:       #0f1629;
  --bg3:       #141d36;
  --card:      #111827;
  --border:    #1e2d4d;
  --border2:   #253557;

  --accent:    #6c63ff;
  --accent2:   #00d4ff;
  --accent3:   #ff6584;

  --text:      #e2e8f0;
  --text2:     #94a3b8;
  --text3:     #64748b;

  --radius:    14px;
  --radius-sm: 8px;
  --shadow:    0 8px 32px rgba(0,0,0,0.4);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.25);

  --font-head: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-code: 'Fira Code', monospace;

  --transition: .3s cubic-bezier(.4,0,.2,1);
}

[data-theme="light"] {
  --bg:        #f8fafc;
  --bg-rgb:    248, 250, 252;
  --bg2:       #f1f5f9;
  --bg3:       #e2e8f0;
  --card:      #ffffff;
  --border:    #e2e8f0;
  --border2:   #cbd5e1;

  --text:      #0f172a;
  --text2:     #475569;
  --text3:     #94a3b8;

  --shadow:    0 8px 32px rgba(0,0,0,0.08);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.06);
}

.theme-transitioning,
.theme-transitioning *,
.theme-transitioning *::before,
.theme-transitioning *::after {
  transition:
    background-color .3s ease,
    color .3s ease,
    border-color .3s ease,
    box-shadow .3s ease !important;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 9999;
  background: var(--accent);
  color: #fff;
  padding: .45rem 1rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-size: .88rem;
  font-weight: 600;
  transition: top .2s;
}
.skip-link:focus { top: 0; }

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; scroll-padding-top: 80px; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

/* =========================================================
   UTILITIES
   ========================================================= */
.container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
}

.section {
  padding: 100px 0;
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.mt-1 { margin-top: 1.5rem; }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .75rem 1.6rem;
  border-radius: 50px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: .95rem;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 20px rgba(108,99,255,.35);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(108,99,255,.5);
}

.btn-outline {
  border: 1.5px solid var(--border2);
  color: var(--text);
  background: transparent;
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-full     { width: 100%; justify-content: center; }
.btn-disabled { opacity: .35; cursor: default; pointer-events: none; }

/* =========================================================
   SOCIAL BUTTONS
   ========================================================= */
.social-btn {
  width: 42px; height: 42px;
  border-radius: 50%;
  border: 1.5px solid var(--border2);
  display: flex; align-items: center; justify-content: center;
  color: var(--text2);
  font-size: 1rem;
  transition: var(--transition);
}
.social-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 4px 16px rgba(108,99,255,.3);
}

/* =========================================================
   NAVBAR
   ========================================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.1rem 0;
  transition: var(--transition);
}

.navbar.scrolled {
  background: rgba(var(--bg-rgb), .9);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: .75rem 0;
}

.nav-container {
  width: 90%;
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.5px;
}
.logo-bracket { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-link {
  font-size: .9rem;
  font-weight: 500;
  color: var(--text2);
  position: relative;
  transition: var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  border-radius: 2px;
  transition: var(--transition);
}
.nav-link:hover,
.nav-link.active { color: var(--text); }
.nav-link:hover::after,
.nav-link.active::after { width: 100%; }

.nav-cta {
  padding: .5rem 1.2rem;
  border-radius: 50px;
  border: 1.5px solid var(--accent);
  color: var(--accent) !important;
}
.nav-cta::after { display: none; }
.nav-cta:hover {
  background: var(--accent);
  color: #fff !important;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: .5rem;
}

.theme-toggle {
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1.5px solid var(--border2);
  display: flex; align-items: center; justify-content: center;
  color: var(--text2);
  font-size: .9rem;
  transition: var(--transition);
  flex-shrink: 0;
}
.theme-toggle:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: rotate(20deg);
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
  display: block;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 120px 10% 80px;
  gap: 5%;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108,99,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,99,255,.05) 1px, transparent 1px);
  background-size: 60px 60px;
}

.hero-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
}
.glow-1 {
  width: 600px; height: 600px;
  background: rgba(108,99,255,.12);
  top: -200px; left: -200px;
}
.glow-2 {
  width: 500px; height: 500px;
  background: rgba(0,212,255,.08);
  bottom: -100px; right: -100px;
}

[data-theme="light"] .hero-grid {
  background-image:
    linear-gradient(rgba(108,99,255,.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108,99,255,.07) 1px, transparent 1px);
}
[data-theme="light"] .glow-1 { background: rgba(108,99,255,.07); }
[data-theme="light"] .glow-2 { background: rgba(0,212,255,.04); }

.hero-content {
  position: relative;
  z-index: 1;
  flex: 1;
  max-width: 600px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .4rem 1rem;
  border-radius: 50px;
  border: 1px solid var(--border2);
  background: rgba(108,99,255,.08);
  font-size: .82rem;
  font-weight: 500;
  color: var(--accent2);
  margin-bottom: 1.5rem;
}
.badge-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  animation: pulse 2s infinite;
}

.hero-name {
  font-family: var(--font-head);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -2px;
  margin-bottom: 1rem;
}

.hero-title-line {
  font-family: var(--font-code);
  font-size: clamp(.85rem, 2vw, 1rem);
  color: var(--text2);
  margin-bottom: 1.5rem;
  min-height: 1.5rem;
}
.code-prefix { color: var(--accent); }
.typed-output { color: var(--accent2); }
.cursor {
  color: var(--accent);
  animation: blink .8s infinite;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text2);
  max-width: 480px;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}

.hero-socials {
  display: flex;
  gap: .75rem;
}

/* Hero visual / code card */
.hero-visual {
  position: relative;
  z-index: 1;
  flex: 1;
  max-width: 440px;
  display: flex;
  justify-content: center;
}

.code-card {
  width: 100%;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  animation: float 6s ease-in-out infinite;
  /* card permanece sempre escuro, independente do tema */
  --card:   #1a2035;
  --bg3:    #141c2e;
  --border: #252f4a;
  --text3:  #64748b;
  --text:   #e2e8f0;
}

.code-header {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: .8rem 1.2rem;
  background: var(--bg3);
  border-bottom: 1px solid var(--border);
}
.code-dots { display: flex; gap: 6px; }
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-r { background: #ff5f57; }
.dot-y { background: #ffbd2e; }
.dot-g { background: #28ca41; }
.code-filename { font-family: var(--font-code); font-size: .82rem; color: var(--text3); margin-left: auto; }

.code-body {
  padding: 1.5rem;
  font-family: var(--font-code);
  font-size: .88rem;
  line-height: 1.8;
  color: var(--text);
  overflow-x: auto;
}
.c-kw  { color: #c792ea; }
.c-var { color: #82aaff; }
.c-key { color: #f07178; }
.c-str { color: #c3e88d; }

/* Scroll hint */
.scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: .4rem;
  color: var(--text3);
  font-size: .72rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  z-index: 1;
}
.scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--accent), transparent);
  animation: scrollAnim 1.8s ease-in-out infinite;
}

/* =========================================================
   SECTION HEADERS
   ========================================================= */
.section-head {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-tag {
  font-family: var(--font-code);
  font-size: .85rem;
  color: var(--accent);
  display: block;
  margin-bottom: .5rem;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -1px;
}
.section-desc {
  color: var(--text2);
  max-width: 600px;
  margin: .8rem auto 0;
  font-size: .95rem;
}

/* =========================================================
   ABOUT
   ========================================================= */
.about { background: var(--bg2); }

.about-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 5rem;
  align-items: center;
}

.about-left {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.avatar-wrap {
  position: relative;
}
.avatar-photo {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center top;
  display: block;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 3px var(--bg2), 0 0 0 5px var(--accent), 0 16px 40px rgba(108,99,255,.3);
  transition: transform .4s ease, box-shadow .4s ease;
}
.avatar-photo:hover {
  transform: scale(1.03);
  box-shadow: 0 0 0 3px var(--bg2), 0 0 0 5px var(--accent2), 0 20px 50px rgba(0,212,255,.3);
}

.about-stats {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  justify-content: center;
}
.stat-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .8rem 1.2rem;
  text-align: center;
  min-width: 90px;
}
.stat-num {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-plus { color: var(--accent); font-weight: 700; font-size: 1rem; }
.stat-label { display: block; font-size: .75rem; color: var(--text3); margin-top: .2rem; }

.about-sub {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 1.2rem;
  line-height: 1.5;
}
.about-p {
  color: var(--text2);
  margin-bottom: 1rem;
  font-size: .95rem;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin: 1.2rem 0;
}
.tag {
  padding: .3rem .9rem;
  border-radius: 50px;
  border: 1px solid var(--border2);
  font-size: .8rem;
  color: var(--text2);
  transition: var(--transition);
}
.tag:hover {
  border-color: var(--accent);
  color: var(--accent);
}

/* =========================================================
   SKILLS
   ========================================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.skill-cat {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem;
  transition: var(--transition);
}
.skill-cat:hover {
  border-color: var(--border2);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.skill-cat-head {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
}
.skill-cat-head i { color: var(--accent); font-size: 1.1rem; }
.skill-cat-head h3 {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  flex: 1;
}

.skill-source {
  font-size: .7rem;
  padding: .15rem .55rem;
  border-radius: 50px;
  border: 1px solid var(--border);
  color: var(--text3);
  margin-left: auto;
}
.skill-source.live {
  border-color: rgba(34,197,94,.3);
  color: #22c55e;
  background: rgba(34,197,94,.07);
}

.skill-loading {
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--text3);
  font-size: .85rem;
  padding: .5rem 0;
}
.skill-loading i { color: var(--accent); }

.skill-list { display: flex; flex-direction: column; gap: .9rem; }

.skill-item {
  display: grid;
  grid-template-columns: 38px 1fr auto;
  align-items: center;
  gap: .75rem;
}

.sk-badge {
  width: 38px; height: 38px;
  border-radius: var(--radius-sm);
  background: rgba(108,99,255,.12);
  border: 1px solid rgba(108,99,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-code);
  font-size: .72rem;
  font-weight: 600;
  color: var(--accent);
  flex-shrink: 0;
}
.sk-badge.react { background: rgba(97,218,251,.1); border-color: rgba(97,218,251,.2); color: #61dafb; font-size: 1.1rem; }

.sk-name { font-size: .88rem; color: var(--text2); }

.sk-bar-wrap {
  width: 90px;
  height: 4px;
  background: var(--bg3);
  border-radius: 4px;
  overflow: hidden;
}
.sk-bar {
  height: 100%;
  width: 0;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width 1.2s cubic-bezier(.4,0,.2,1);
}
.sk-bar.animated { width: var(--w); }

/* =========================================================
   PROJECTS
   ========================================================= */
.projects { background: var(--bg2); }

.projects-filter {
  display: flex;
  gap: .5rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 2.5rem;
}
.filter-btn {
  padding: .45rem 1.1rem;
  border-radius: 50px;
  border: 1.5px solid var(--border);
  font-size: .85rem;
  font-weight: 500;
  color: var(--text2);
  transition: var(--transition);
}
.filter-btn:hover,
.filter-btn.active {
  border-color: var(--accent);
  color: var(--accent);
  background: rgba(108,99,255,.08);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  animation: fadeInUp .5s ease both;
}
.project-card:hover {
  border-color: var(--border2);
  transform: translateY(-6px);
  box-shadow: 0 20px 40px rgba(0,0,0,.35);
}

.projects-loading,
.projects-empty {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  padding: 4rem 2rem;
  color: var(--text3);
  font-size: .95rem;
  text-align: center;
}
.projects-loading i,
.projects-empty i { font-size: 2rem; color: var(--accent); }
.projects-empty p { line-height: 1.8; }
.projects-empty .btn { margin-top: .5rem; }

.repo-stars {
  position: absolute;
  top: .6rem;
  right: .6rem;
  background: rgba(0,0,0,.5);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 50px;
  padding: .2rem .6rem;
  font-size: .75rem;
  color: #fbbf24;
  display: flex;
  align-items: center;
  gap: .3rem;
}

.project-thumb {
  aspect-ratio: 16/9;
  overflow: hidden;
  position: relative;
}
.project-thumb img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}
.project-card:hover .project-thumb img { transform: scale(1.05); }

.project-thumb-placeholder {
  width: 100%; height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}
.project-thumb-placeholder > span:first-child {
  font-size: 2.8rem;
  line-height: 1;
}

.project-body {
  padding: 1.4rem;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.project-top {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: .5rem;
  margin-bottom: .6rem;
}
.project-title {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}

.project-status {
  padding: .2rem .65rem;
  border-radius: 50px;
  font-size: .72rem;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}
.status-done   { background: rgba(34,197,94,.1); color: #22c55e; border: 1px solid rgba(34,197,94,.2); }
.status-wip    { background: rgba(234,179,8,.1);  color: #eab308; border: 1px solid rgba(234,179,8,.2); }
.status-paused { background: rgba(148,163,184,.1); color: #94a3b8; border: 1px solid rgba(148,163,184,.2); }

.project-desc {
  font-size: .88rem;
  color: var(--text2);
  line-height: 1.6;
  margin-bottom: 1rem;
  flex: 1;
}

.project-techs {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
  margin-bottom: 1.2rem;
}
.tech-tag {
  padding: .2rem .65rem;
  background: rgba(108,99,255,.08);
  border: 1px solid rgba(108,99,255,.15);
  border-radius: 50px;
  font-size: .75rem;
  color: var(--accent);
  font-family: var(--font-code);
}

.project-actions {
  display: flex;
  gap: .6rem;
}
.project-actions .btn {
  flex: 1;
  padding: .55rem 1rem;
  font-size: .82rem;
  justify-content: center;
}

/* =========================================================
   CONTACT
   ========================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: stretch;
}

.contact-info {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}

.contact-sub {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: .8rem;
}
.contact-p {
  color: var(--text2);
  font-size: .95rem;
  margin-bottom: 2rem;
  line-height: 1.8;
}

.contact-links { display: flex; flex-direction: column; gap: .8rem; }
.contact-link {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.2rem;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.contact-link:hover {
  border-color: var(--accent);
  transform: translateX(4px);
}

.cl-icon {
  width: 40px; height: 40px;
  border-radius: var(--radius-sm);
  background: rgba(108,99,255,.1);
  border: 1px solid rgba(108,99,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: .95rem;
  flex-shrink: 0;
}
.cl-body { display: flex; flex-direction: column; }
.cl-label { font-size: .75rem; color: var(--text3); }
.cl-value { font-size: .88rem; color: var(--text); font-weight: 500; }

/* Contact Form */
.contact-form {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.form-group { display: flex; flex-direction: column; gap: .4rem; margin-bottom: 1rem; }
.form-label { font-size: .82rem; font-weight: 500; color: var(--text2); }
.form-input,
.form-textarea {
  background: var(--bg3);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: .75rem 1rem;
  font-family: var(--font-body);
  font-size: .9rem;
  color: var(--text);
  transition: var(--transition);
  resize: none;
  outline: none;
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--text3); }
.form-input:focus,
.form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(108,99,255,.15);
}

.form-feedback {
  margin-top: 1rem;
  font-size: .88rem;
  text-align: center;
  min-height: 1.2rem;
}
.form-feedback.success { color: #22c55e; }
.form-feedback.error   { color: var(--accent3); }

/* =========================================================
   FOOTER
   ========================================================= */
.footer {
  background: var(--bg);
  border-top: 1px solid var(--border);
  padding: 2.5rem 0 1.5rem;
}
.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  margin-bottom: 1.5rem;
}
.footer-copy { font-size: .88rem; color: var(--text3); text-align: center; }
.heart { color: var(--accent3); }
.footer-socials { display: flex; gap: .6rem; justify-self: end; }
.footer-rights {
  text-align: center;
  font-size: .78rem;
  color: var(--text3);
  border-top: 1px solid var(--border);
  padding-top: 1.2rem;
}

/* Back to top */
.back-top {
  position: fixed;
  bottom: 2rem; right: 2rem;
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .9rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(108,99,255,.4);
  z-index: 999;
}
.back-top.visible {
  opacity: 1;
  pointer-events: all;
  transform: translateY(0);
}
.back-top:hover { transform: translateY(-3px); }

/* =========================================================
   REVEAL ANIMATION
   ========================================================= */
[data-reveal] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}
[data-reveal].revealed {
  opacity: 1;
  transform: translateY(0);
}

/* =========================================================
   KEYFRAMES
   ========================================================= */
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 6px #22c55e; }
  50%       { box-shadow: 0 0 14px #22c55e; }
}

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

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-12px); }
}

@keyframes scrollAnim {
  0%   { transform: scaleY(0); transform-origin: top; }
  50%  { transform: scaleY(1); transform-origin: top; }
  51%  { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* =========================================================
   EXPERIENCE / TIMELINE
   ========================================================= */
.experience { background: var(--bg2); }

.timeline {
  position: relative;
  display: flex;
  flex-direction: column;
}
.timeline::before {
  content: '';
  position: absolute;
  left: 25px;
  top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent2), transparent);
}

.tl-item {
  display: grid;
  grid-template-columns: 52px 1fr;
  gap: 1.5rem;
  padding-bottom: 2.5rem;
}
.tl-item:last-child { padding-bottom: 0; }

.tl-marker {
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--bg2);
  border: 2px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text3);
  font-size: .9rem;
  flex-shrink: 0;
  position: relative;
  /* box-shadow spread na cor do fundo cobre a linha sem precisar de z-index */
  box-shadow: 0 0 0 5px var(--bg2);
  transition: var(--transition);
}
.tl-marker.current {
  border-color: var(--accent);
  background: var(--bg2);
  color: var(--accent);
  box-shadow: 0 0 0 5px var(--bg2), 0 0 20px rgba(108,99,255,.3);
}
.tl-marker.edu {
  border-color: var(--accent2);
  background: var(--bg2);
  color: var(--accent2);
  box-shadow: 0 0 0 5px var(--bg2);
}
.tl-item:hover .tl-marker {
  border-color: var(--accent);
  color: var(--accent);
}

.tl-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  transition: var(--transition);
}
.tl-card:hover {
  border-color: var(--border2);
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.tl-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}
.tl-left { display: flex; flex-direction: column; gap: .2rem; }
.tl-company {
  font-size: .8rem;
  color: var(--accent);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.tl-role {
  font-family: var(--font-head);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}
.tl-type { font-size: .8rem; color: var(--text3); }

.tl-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: .4rem;
  flex-shrink: 0;
}
.tl-period { font-size: .82rem; color: var(--text2); white-space: nowrap; }

.tl-badge {
  padding: .2rem .7rem;
  border-radius: 50px;
  font-size: .72rem;
  font-weight: 600;
  white-space: nowrap;
}
.badge-current { background: rgba(108,99,255,.12); color: var(--accent); border: 1px solid rgba(108,99,255,.25); }
.badge-past    { background: rgba(148,163,184,.08); color: var(--text2); border: 1px solid var(--border); }
.badge-edu     { background: rgba(0,212,255,.1);   color: var(--accent2); border: 1px solid rgba(0,212,255,.2); }

.tl-desc {
  font-size: .9rem;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 1rem;
}
.tl-techs {
  display: flex;
  flex-wrap: wrap;
  gap: .4rem;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 1024px) {
  .hero { padding: 120px 6% 80px; flex-direction: column; gap: 3rem; text-align: center; }
  .hero-content { max-width: 100%; }
  .hero-buttons, .hero-socials { justify-content: center; }
  .hero-visual { max-width: 480px; }
  .about-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .about-left { flex-direction: row; flex-wrap: wrap; justify-content: center; }
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
  .skills-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}

@media (max-width: 768px) {
  .section { padding: 70px 0; }
  .timeline::before { left: 20px; }
  .tl-item { grid-template-columns: 42px 1fr; gap: 1rem; }
  .tl-marker { width: 42px; height: 42px; font-size: .8rem; }
  .tl-header { flex-direction: column; gap: .6rem; }
  .tl-right { align-items: flex-start; }
  .nav-links {
    position: fixed;
    top: 0; right: -100%;
    height: 100vh;
    width: min(300px, 80vw);
    background: rgba(var(--bg-rgb), .97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: flex-start;
    padding: 6rem 2rem 2rem;
    gap: 1.5rem;
    border-left: 1px solid var(--border);
    transition: right .35s ease;
    z-index: 999;
  }
  .nav-links.open { right: 0; }
  .nav-link { font-size: 1.1rem; }
  .nav-toggle { display: flex; z-index: 1000; }
  .theme-toggle { display: flex; }
  .hero { padding: 100px 5% 60px; }
  .projects-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { flex-direction: column; align-items: center; text-align: center; }
}

@media (max-width: 480px) {
  .hero-name { letter-spacing: -1px; }
  .about-stats { flex-direction: row; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { justify-content: center; }
}

/* =========================================================
   ACESSIBILIDADE
   ========================================================= */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .code-card  { animation: none; }
  .scroll-line { display: none; }
  .badge-dot  { animation: none; box-shadow: 0 0 6px #22c55e; }
}