/* ============================================================
   LCODE — Lucas Machado Gonçalves | Portfolio
   ============================================================ */

:root{
  /* brand colors */
  --blue-light: #38BDF8;
  --blue-main:  #1677FF;
  --blue-dark:  #0F172A;
  --white:      #FFFFFF;
  --gray-light: #F8FAFC;

  --gradient-brand: linear-gradient(135deg, var(--blue-light), var(--blue-main));

  /* dark theme (default) */
  --bg:            #0B1220;
  --bg-elevated:   #0F172A;
  --surface:       rgba(255,255,255,0.04);
  --surface-solid: #131C2E;
  --border:        rgba(255,255,255,0.09);
  --text:          #EAF2FF;
  --text-dim:      #93A4C3;
  --text-faint:    #5D6E8F;
  --shadow-blue:   0 20px 60px -20px rgba(22,119,255,0.45);

  --font-display: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 10px;
  --radius-md: 18px;
  --radius-lg: 28px;

  --ease: cubic-bezier(.16,.84,.44,1);
}

[data-theme="light"]{
  --bg:            #F8FAFC;
  --bg-elevated:   #FFFFFF;
  --surface:       rgba(15,23,42,0.03);
  --surface-solid: #FFFFFF;
  --border:        rgba(15,23,42,0.08);
  --text:          #0F172A;
  --text-dim:      #475569;
  --text-faint:    #94A3B8;
  --shadow-blue:   0 20px 60px -24px rgba(22,119,255,0.30);
}

*,*::before,*::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: 90px; }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior: auto; }
  *,*::before,*::after{ animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
}

body{
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .4s var(--ease), color .4s var(--ease);
  overflow-x: hidden;
}

h1,h2,h3{ font-family: var(--font-display); margin: 0; letter-spacing: -0.02em; }
p{ margin: 0; }
a{ color: inherit; text-decoration: none; }
img{ max-width: 100%; display: block; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family: inherit; cursor:pointer; }

::selection{ background: var(--blue-main); color:#fff; }

:focus-visible{
  outline: 2px solid var(--blue-light);
  outline-offset: 3px;
  border-radius: 4px;
}

.section-inner{
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
}

.text-gradient{
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.text-accent{ color: var(--blue-light); }

.eyebrow{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--blue-light);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}
.eyebrow .dot{
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--blue-light);
  box-shadow: 0 0 12px 2px var(--blue-light);
  animation: blink 1.8s ease-in-out infinite;
}
@keyframes blink{ 50%{ opacity: .35; } }

.section-title{
  font-size: clamp(1.8rem, 3.4vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 16px;
}
.section-sub{
  color: var(--text-dim);
  max-width: 560px;
  margin-bottom: 48px;
  font-size: 1.02rem;
}

/* ===== reveal-on-scroll ===== */
[data-reveal]{
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
[data-reveal].in-view{
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 26px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease);
  white-space: nowrap;
}
.btn i{ font-size: 0.9em; }
.btn:hover{ transform: translateY(-3px); }

.btn-primary{
  background: var(--gradient-brand);
  color: #fff;
  box-shadow: var(--shadow-blue);
}
.btn-primary:hover{ box-shadow: 0 24px 70px -18px rgba(22,119,255,0.6); }

.btn-outline{
  border-color: var(--border);
  color: var(--text);
  background: var(--surface);
  backdrop-filter: blur(10px);
}
.btn-outline:hover{ border-color: var(--blue-light); color: var(--blue-light); }

.btn-ghost{
  color: var(--text-dim);
  padding: 14px 20px;
}
.btn-ghost:hover{ color: var(--blue-light); }

.btn-sm{ padding: 10px 18px; font-size: 0.86rem; }

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 500;
  padding: 18px 0;
  transition: all .35s var(--ease);
}
.navbar.scrolled{
  padding: 12px 0;
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom: 1px solid var(--border);
}
.nav-inner{
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand{
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
}
.brand-mark{
  font-family: var(--font-mono);
  color: var(--blue-light);
}
.nav-links{
  display: flex;
  gap: 4px;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 6px;
  border-radius: 100px;
  backdrop-filter: blur(10px);
}
.nav-link{
  padding: 9px 16px;
  border-radius: 100px;
  font-size: 0.9rem;
  color: var(--text-dim);
  font-weight: 500;
  transition: all .25s var(--ease);
}
.nav-link:hover{ color: var(--text); }
.nav-link.active{
  color: #fff;
  background: var(--gradient-brand);
}
.nav-actions{ display: flex; align-items: center; gap: 10px; }
.nav-cv{ display: inline-flex; }

.theme-toggle{
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  display: flex; align-items: center; justify-content: center;
  position: relative;
}
.theme-toggle i{ position: absolute; transition: opacity .3s, transform .3s; }
.theme-toggle .fa-sun{ opacity: 0; transform: rotate(-90deg) scale(.5); }
.theme-toggle .fa-moon{ opacity: 1; transform: rotate(0) scale(1); }
[data-theme="light"] .theme-toggle .fa-sun{ opacity: 1; transform: rotate(0) scale(1); color:#F59E0B; }
[data-theme="light"] .theme-toggle .fa-moon{ opacity: 0; transform: rotate(90deg) scale(.5); }

.burger{
  display: none;
  width: 40px; height: 40px;
  border: 1px solid var(--border);
  background: var(--surface);
  border-radius: 10px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
}
.burger span{
  width: 18px; height: 2px; background: var(--text);
  transition: all .3s var(--ease);
}
.burger.open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2){ opacity: 0; }
.burger.open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

.mobile-menu{
  position: fixed;
  top: 0; right: 0;
  width: min(84vw, 340px);
  height: 100vh;
  background: var(--bg-elevated);
  border-left: 1px solid var(--border);
  z-index: 600;
  padding: 100px 32px 40px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  transform: translateX(100%);
  transition: transform .4s var(--ease);
}
.mobile-menu.open{ transform: translateX(0); }
.mobile-menu a{
  padding: 14px 4px;
  border-bottom: 1px solid var(--border);
  color: var(--text-dim);
  font-weight: 500;
}
.mobile-menu .btn{ margin-top: 20px; justify-content: center; }

/* ============================================================
   HERO
   ============================================================ */
.hero{
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 110px;
}
.particles{
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
  opacity: .6;
}
.hero-orb{
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  z-index: 0;
  pointer-events: none;
}
.hero-orb-1{
  width: 480px; height: 480px;
  background: radial-gradient(circle, rgba(56,189,248,0.35), transparent 70%);
  top: -120px; right: -80px;
  animation: float-slow 14s ease-in-out infinite;
}
.hero-orb-2{
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(22,119,255,0.28), transparent 70%);
  bottom: -100px; left: -60px;
  animation: float-slow 18s ease-in-out infinite reverse;
}
@keyframes float-slow{
  0%,100%{ transform: translate(0,0); }
  50%{ transform: translate(30px,-20px); }
}

.hero-inner{
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
}

.hero-title{
  font-size: clamp(2.4rem, 5.2vw, 3.7rem);
  font-weight: 800;
  line-height: 1.08;
  margin: 6px 0 18px;
}
.hero-role{
  font-family: var(--font-mono);
  font-size: clamp(1.05rem, 2vw, 1.3rem);
  color: var(--blue-main);
  margin-bottom: 22px;
  min-height: 1.6em;
}
.cursor-blink{ animation: blink 1s step-end infinite; color: var(--blue-light); }
.hero-desc{
  max-width: 520px;
  color: var(--text-dim);
  font-size: 1.05rem;
  margin-bottom: 34px;
}
.hero-actions{ display: flex; flex-wrap: wrap; gap: 14px; }

.hero-media{ display: flex; justify-content: center; }
.hero-photo-wrap{
  position: relative;
  width: min(360px, 80vw);
  animation: hero-float 6s ease-in-out infinite;
}
@keyframes hero-float{
  0%,100%{ transform: translateY(0); }
  50%{ transform: translateY(-16px); }
}
.hero-photo-glow{
  position: absolute; inset: -14px;
  background: var(--gradient-brand);
  border-radius: 34px;
  filter: blur(28px);
  opacity: .55;
  z-index: 0;
}
.hero-photo{
  position: relative;
  z-index: 1;
  border-radius: 28px;
  border: 1px solid rgba(255,255,255,0.15);
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.5);
  aspect-ratio: 4/5;
  object-fit: cover;
  object-position: top;
}
.floating-badge{
  position: absolute;
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  border-radius: 100px;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  backdrop-filter: blur(14px);
  font-size: 0.85rem;
  font-weight: 600;
  box-shadow: 0 12px 30px -10px rgba(0,0,0,0.35);
}
.badge-top{ top: 12%; left: -12%; color: var(--blue-light); }
.badge-bottom{ bottom: 8%; right: -8%; }
.pulse-dot{
  width: 8px; height: 8px; border-radius: 50%;
  background: #22C55E;
  box-shadow: 0 0 0 0 rgba(34,197,94,.6);
  animation: pulse 1.8s infinite;
}
@keyframes pulse{
  0%{ box-shadow: 0 0 0 0 rgba(34,197,94,.6); }
  70%{ box-shadow: 0 0 0 10px rgba(34,197,94,0); }
  100%{ box-shadow: 0 0 0 0 rgba(34,197,94,0); }
}

.scroll-cue{
  position: absolute;
  bottom: 32px; left: 50%;
  transform: translateX(-50%);
  width: 26px; height: 42px;
  border: 2px solid var(--border);
  border-radius: 20px;
  z-index: 2;
}
.scroll-cue span{
  position: absolute;
  top: 6px; left: 50%;
  width: 4px; height: 8px;
  background: var(--blue-light);
  border-radius: 4px;
  transform: translateX(-50%);
  animation: scroll-cue 1.6s ease-in-out infinite;
}
@keyframes scroll-cue{
  0%{ opacity: 1; top: 6px; }
  100%{ opacity: 0; top: 20px; }
}

/* ============================================================
   STATS
   ============================================================ */
.stats{ padding: 40px 0 100px; position: relative; z-index: 1; }
.stats-grid{
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-card{
  padding: 34px 20px;
  text-align: center;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
  transition: transform .3s var(--ease), border-color .3s;
}
.stat-card:hover{ transform: translateY(-6px); border-color: rgba(56,189,248,0.4); }
.stat-number{
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.6rem);
  font-weight: 800;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: block;
}
.stat-label{ color: var(--text-dim); font-size: 0.92rem; margin-top: 6px; }

/* ============================================================
   ABOUT
   ============================================================ */
.about{ padding: 60px 0 120px; }
.about-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.about-text p{ color: var(--text-dim); margin-bottom: 18px; font-size: 1.05rem; }
.about-text strong{ color: var(--text); }

.about-cards{ display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-card{
  padding: 26px 20px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform .3s var(--ease), border-color .3s;
}
.about-card:hover{ transform: translateY(-6px); border-color: rgba(56,189,248,0.4); }
.about-icon{ font-size: 1.6rem; display: block; margin-bottom: 12px; }
.about-card h3{ font-size: 1rem; margin-bottom: 6px; }
.about-card p{ color: var(--text-dim); font-size: 0.9rem; }

/* ============================================================
   TECH
   ============================================================ */
.tech{ padding: 60px 0 120px; }
.tech-grid{
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 16px;
}
.tech-item{
  padding: 26px 12px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  transition: transform .3s var(--ease), border-color .3s, background .3s;
}
.tech-item:hover{
  transform: translateY(-6px) scale(1.03);
  border-color: var(--blue-light);
  background: rgba(56,189,248,0.06);
}
.tech-item i{ font-size: 1.9rem; color: var(--blue-light); }
.tech-item span{ font-size: 0.85rem; font-weight: 600; color: var(--text-dim); }

/* ============================================================
   PROJECTS
   ============================================================ */
.projects{ padding: 60px 0 120px; }
.projects-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}
.project-card{
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface-solid);
  border: 1px solid var(--border);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease);
}
.project-card:hover{
  transform: translateY(-8px);
  box-shadow: var(--shadow-blue);
}
.project-image{ position: relative; aspect-ratio: 16/10; overflow: hidden; }
.project-image img{
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s var(--ease);
}
.project-card:hover .project-image img{ transform: scale(1.06); }
.project-tag{
  position: absolute; top: 14px; left: 14px;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(11,18,32,0.75);
  color: #fff;
  backdrop-filter: blur(6px);
}
.project-body{ padding: 26px; }
.project-body h3{ font-size: 1.25rem; margin-bottom: 10px; }
.project-body p{ color: var(--text-dim); font-size: 0.92rem; margin-bottom: 16px; }
.project-stack{ display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
.project-stack span{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 5px 10px;
  border-radius: 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-dim);
}
.project-link{
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--blue-light);
  font-weight: 600;
  font-size: 0.92rem;
}
.project-link:hover{ gap: 12px; }
.project-link i{ font-size: 0.78em; }

/* ============================================================
   SERVICES
   ============================================================ */
.services{ padding: 60px 0 120px; }
.services-grid{
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.service-card{
  padding: 32px 26px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform .3s var(--ease), border-color .3s;
}
.service-card:hover{ transform: translateY(-6px); border-color: rgba(56,189,248,0.4); }
.service-icon{ font-size: 1.8rem; display: block; margin-bottom: 14px; }
.service-card h3{ font-size: 1.05rem; margin-bottom: 8px; }
.service-card p{ color: var(--text-dim); font-size: 0.92rem; }

/* ============================================================
   CONTACT
   ============================================================ */
.contact{ padding: 60px 0 140px; text-align: center; }
.contact .section-title, .contact .section-sub, .contact .eyebrow{ margin-left: auto; margin-right: auto; }
.social-grid{
  display: flex;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  margin-top: 10px;
}
.social-card{
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  width: 140px;
  padding: 28px 12px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform .3s var(--ease), border-color .3s, color .3s;
  font-weight: 600;
  font-size: 0.9rem;
}
.social-card i{ font-size: 1.8rem; color: var(--blue-light); }
.social-card:hover{ transform: translateY(-6px); border-color: var(--blue-light); color: var(--blue-light); }

/* ============================================================
   FOOTER
   ============================================================ */
.footer{
  border-top: 1px solid var(--border);
  padding: 48px 0;
  text-align: center;
}
.footer-inner{ display: flex; flex-direction: column; align-items: center; gap: 10px; }
.footer-brand{ display: flex; align-items: center; gap: 8px; font-family: var(--font-display); font-weight: 700; }
.footer-tagline{ color: var(--text-dim); font-style: italic; }
.footer-meta{ color: var(--text-faint); font-size: 0.85rem; }

/* ============================================================
   MODAL
   ============================================================ */
.modal-overlay{
  position: fixed; inset: 0;
  background: rgba(4,8,16,0.65);
  backdrop-filter: blur(6px);
  z-index: 900;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s var(--ease);
}
.modal-overlay.open{ opacity: 1; visibility: visible; }
.modal{
  width: 100%;
  max-width: 420px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px 32px;
  position: relative;
  transform: scale(.92) translateY(10px);
  transition: transform .35s var(--ease);
  box-shadow: 0 40px 100px -30px rgba(0,0,0,0.6);
}
.modal-overlay.open .modal{ transform: scale(1) translateY(0); }
.modal-close{
  position: absolute; top: 14px; right: 14px;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-dim);
  font-size: 1.2rem;
  line-height: 1;
}
.modal-icon{ font-size: 2.4rem; color: var(--blue-light); margin-bottom: 14px; }
.modal-name{ font-size: 1.4rem; margin-bottom: 10px; }
.modal-desc{ color: var(--text-dim); font-size: 0.95rem; margin-bottom: 20px; }
.modal-level{
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 16px;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  margin-bottom: 20px;
  font-size: 0.9rem;
}
.modal-level span{ color: var(--text-dim); }
.modal-level strong{ color: var(--blue-light); }
.modal-used span{ color: var(--text-dim); font-size: 0.85rem; display: block; margin-bottom: 8px; }
.modal-used ul li{
  padding: 8px 12px;
  border-radius: 10px;
  background: var(--surface);
  border: 1px solid var(--border);
  margin-bottom: 8px;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.modal-used ul li::before{
  content: "▹";
  color: var(--blue-light);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 980px){
  .nav-links{ display: none; }
  .burger{ display: flex; }
  .nav-cv{ display: none; }

  .hero-inner{ grid-template-columns: 1fr; text-align: center; }
  .hero-desc{ margin-left: auto; margin-right: auto; }
  .hero-actions{ justify-content: center; }
  .hero-media{ order: -1; margin-bottom: 20px; }
  .badge-top{ left: 0; }
  .badge-bottom{ right: 0; }

  .about-grid{ grid-template-columns: 1fr; }
  .projects-grid{ grid-template-columns: 1fr; }
  .services-grid{ grid-template-columns: repeat(2, 1fr); }
  .stats-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 560px){
  .section-inner{ padding: 0 20px; }
  .services-grid{ grid-template-columns: 1fr; }
  .about-cards{ grid-template-columns: 1fr; }
  .hero-photo-wrap{ width: min(300px, 78vw); }
  .social-grid{ gap: 12px; }
  .social-card{ width: 100px; padding: 20px 8px; }
}