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

:root {
  --bg:          #080C14;
  --bg-card:     #0D1B2E;
  --bg-card-2:   #0A1628;
  --cyan:        #00D4FF;
  --violet:      #7B2FFF;
  --cyan-dim:    rgba(0,212,255,0.12);
  --violet-dim:  rgba(123,47,255,0.12);
  --white:       #FFFFFF;
  --white-70:    rgba(255,255,255,0.70);
  --white-40:    rgba(255,255,255,0.40);
  --white-10:    rgba(255,255,255,0.07);
  --border:      rgba(255,255,255,0.08);
  --font-display:'Space Grotesk', sans-serif;
  --font-body:   'Inter', sans-serif;
  --font-mono:   'JetBrains Mono', monospace;
  --radius:      4px;
  --radius-lg:   12px;
  --transition:  0.3s cubic-bezier(0.4,0,0.2,1);
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--white);
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; }
button { font-family: inherit; cursor: pointer; border: none; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 28px;
}

/* =========================================
   CURSOR GLOW
   ========================================= */
.cursor-glow {
  position: fixed;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(circle, rgba(0,212,255,0.06) 0%, transparent 70%);
  transform: translate(-50%, -50%);
  transition: transform 0.05s linear;
}

/* =========================================
   NOISE TEXTURE
   ========================================= */
.noise {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: 0.025;
  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='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 256px 256px;
}

/* =========================================
   GRADIENT TEXT
   ========================================= */
.gradient-text {
  background: linear-gradient(135deg, var(--cyan) 0%, var(--violet) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =========================================
   NAVBAR
   ========================================= */
.navbar {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 999;
  padding: 0 32px;
  transition: background var(--transition), border-color var(--transition);
}

.navbar.solid {
  background: rgba(8, 12, 20, 0.92);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  max-width: 1160px;
  margin: 0 auto;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.2rem;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--white);
}
.logo-bracket { color: var(--cyan); }
.logo-slash   { color: var(--violet); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav-item {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--white-70);
  letter-spacing: 0.04em;
  position: relative;
  transition: color var(--transition);
}
.nav-item::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  transition: width var(--transition);
}
.nav-item:hover { color: var(--white); }
.nav-item:hover::after { width: 100%; }
.nav-item.active { color: var(--cyan); }

.nav-cta {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--bg);
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  padding: 9px 20px;
  border-radius: var(--radius);
  letter-spacing: 0.04em;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
}
.nav-cta:hover {
  opacity: 0.9;
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(0,212,255,0.3);
}

/* Burger */
.burger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 4px;
  cursor: pointer;
}
.burger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: var(--transition);
}

/* =========================================
   SECTION COMMON
   ========================================= */
section { padding: 110px 0; position: relative; z-index: 2; }

.section-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  letter-spacing: 0.1em;
  margin-bottom: 24px;
  opacity: 0.8;
}

.section-heading {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 40px;
  letter-spacing: -0.02em;
}

/* =========================================
   HERO
   ========================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 0;
  position: relative;
  overflow: hidden;
}

#bgCanvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.45;
}

.hero-content {
  position: relative;
  z-index: 2;
  flex: 1;
  padding: 100px 0 80px 28px;
  max-width: 600px;
}

@media (min-width: 1160px) {
  .hero-content { padding-left: calc((100vw - 1160px)/2 + 28px); }
}

.hero-status {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,212,255,0.08);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.78rem;
  font-family: var(--font-mono);
  color: var(--cyan);
  margin-bottom: 32px;
  letter-spacing: 0.04em;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 8px #22c55e;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; box-shadow: 0 0 8px #22c55e; }
  50% { opacity: 0.6; box-shadow: 0 0 16px #22c55e; }
}

.hero-line-small {
  display: block;
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 1.5vw, 1.1rem);
  font-weight: 300;
  color: var(--white-70);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

.hero-line-big {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.hero-heading { margin-bottom: 0; }

.hero-typewriter {
  display: flex;
  align-items: center;
  gap: 0;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 1.8vw, 1.15rem);
  color: var(--cyan);
  margin-bottom: 28px;
  min-height: 1.6em;
}
.tw-prefix { color: var(--violet); margin-right: 6px; }
.tw-cursor {
  color: var(--cyan);
  animation: blink 1s step-end infinite;
  font-weight: 300;
}
@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

.hero-desc {
  font-size: clamp(0.95rem, 1.4vw, 1.05rem);
  color: var(--white-70);
  line-height: 1.8;
  max-width: 480px;
  margin-bottom: 40px;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.btn-primary {
  display: inline-block;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius);
  letter-spacing: 0.04em;
  transition: transform var(--transition), box-shadow var(--transition), opacity var(--transition);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,212,255,0.35);
  opacity: 0.92;
}

.btn-outline {
  display: inline-block;
  border: 1px solid var(--border);
  color: var(--white-70);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  letter-spacing: 0.04em;
  transition: border-color var(--transition), color var(--transition), background var(--transition), transform var(--transition);
}
.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-dim);
  transform: translateY(-2px);
}

.hero-scroll-hint {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--white-40);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}
.scroll-line {
  width: 40px;
  height: 1px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  animation: scroll-pulse 2s ease-in-out infinite;
}
@keyframes scroll-pulse {
  0%, 100% { opacity: 0.5; width: 40px; }
  50% { opacity: 1; width: 60px; }
}

/* Hero code panel */
.hero-code-panel {
  position: relative;
  z-index: 2;
  flex: 0 0 auto;
  padding: 80px 28px 80px 40px;
  display: none;
}

@media (min-width: 960px) {
  .hero-code-panel { display: flex; align-items: center; }
}

@media (min-width: 1160px) {
  .hero-code-panel { padding-right: calc((100vw - 1160px)/2 + 28px); }
}

.code-toolbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(255,255,255,0.03);
  border-bottom: 1px solid var(--border);
}
.dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}
.dot.red    { background: #FF5F57; }
.dot.yellow { background: #FFBD2E; }
.dot.green  { background: #28CA41; }
.code-filename {
  margin-left: 10px;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--white-40);
}

.code-body {
  padding: 24px 20px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.8;
  white-space: pre;
  overflow-x: auto;
}
.c-keyword { color: #C792EA; }
.c-class   { color: var(--cyan); }
.c-fn      { color: #82AAFF; }
.c-self    { color: #F78C6C; }
.c-str     { color: #C3E88D; }
.c-bool    { color: #FF9CAC; }

/* =========================================
   secção sobre mim
   ========================================= */
.sobre{
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-card-2) 50%, var(--bg) 100%);
}

.sobre-grid{
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 80px;
  align-items: center;
}

@media (max-width: 860px){
  .sobre-grid{
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

.sobre-text{
  font-size: 1rem;
  color: var(--white-70);
  line-height: 1.85;
  margin-bottom: 20px;
}

.sobre-text em{
  color: var(--cyan);
  font-style: normal;
}

.sobre-stats{
  display: flex;
  gap: 40px;
  margin-top: 40px;
  flex-wrap: wrap;
}

.stat-item{
  display: flex;
  flex-direction: column;
  gap: 4px;
  text-align: center;
}

.stat-num{
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  line-height: 1;
}

.stat-item span{
  font-size: 0.78rem;
  color: var(--white-40);
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

/* Avatar */
.avatar-frame{
  position: relative;
  width: 220px;
  height: 220px;
  flex-shrink: 0;
}

.avatar-inner{
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-card-2) 100%);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.avatar-placeholder{
  width: 70%;
  opacity: 0.8;
}

.avatar-ring{
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid transparent;
  background: linear-gradient(135deg, var(--cyan), var(--violet)) border-box;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  animation: spin-ring 8s linear infinite;
}

@keyframes spin-ring{
  from{ 
    transform: rotate(0deg); 
  }
  to{ 
    transform: rotate(360deg);
  }
}

.avatar-badge{
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  box-shadow: 0 4px 16px rgba(0,212,255,0.4);
}

/* =========================================
   secção das skills
   ========================================= */
.skills-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

@media (max-width: 760px){
  .skills-grid{ 
    grid-template-columns: 1fr; 
    gap: 40px; 
  }
}

.skills-col-title{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--white-40);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.skill-bars{ 
  display: flex; 
  flex-direction: column; 
  gap: 24px; 
}

.skill-bar-item {}
.sb-header{
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.sb-lang{
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--white);
  display: flex;
  align-items: center;
  gap: 8px;
}

.sb-icon{ 
  font-size: 1rem;
}

.sb-pct{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
}

.sb-track{
  height: 4px;
  background: var(--white-10);
  border-radius: 4px;
  overflow: hidden;
}

.sb-fill{
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--cyan), var(--violet));
  border-radius: 4px;
  transition: width 1.2s cubic-bezier(0.4,0,0.2,1);
}

.sb-fill.animated{ 
  width: var(--pct); 
}

/* Tech tags */
.tech-tags{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}

.tag{
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 5px 12px;
  border: 1px solid var(--border);
  border-radius: 3px;
  color: var(--white-70);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
  cursor: default;
}

.tag:hover{
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-dim);
}

.skills-mindset{ 
  display: flex; 
  flex-direction: column; 
  gap: 16px; 
}

.mindset-item{
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px;
  background: var(--white-10);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.mindset-icon{ 
  font-size: 1.4rem; 
  flex-shrink: 0;
}

.mindset-item strong{
  display: block;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.mindset-item p{
  font-size: 0.82rem;
  color: var(--white-70);
  line-height: 1.6;
}

/* =========================================
   secção dos projetos
   ========================================= */
.projetos{
  background: var(--bg-card-2); 
}

.projetos-grid{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  grid-template-rows: auto auto;
  gap: 20px;
}

@media (max-width: 760px){
  .projetos-grid{ 
    grid-template-columns: 1fr; 
  }
}

.projeto-card{
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--transition), transform var(--transition);
}

.projeto-card::before{
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  padding: 1px;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: destination-out;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--transition);
}

.projeto-card:hover::before{ 
  opacity: 1; 
}

.projeto-card:hover{
  transform: translateY(-4px);
  border-color: transparent;
}

.projeto-card.featured{
  grid-column: span 2;
}

@media (max-width: 760px){
  .projeto-card.featured{ 
    grid-column: span 1;
  }
}

.proj-meta{
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.proj-type{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--white-40);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.proj-status{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--white-40);
  letter-spacing: 0.06em;
}

.proj-status.live{ 
  color: #22c55e; 
}

.proj-title {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.proj-desc{
  font-size: 0.88rem;
  color: var(--white-70);
  line-height: 1.75;
  margin-bottom: 20px;
}

.proj-stack{
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.proj-stack span{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 3px 10px;
  background: var(--cyan-dim);
  border: 1px solid rgba(0,212,255,0.2);
  border-radius: 3px;
  color: var(--cyan);
}

.proj-links{
  display: flex;
  gap: 16px;
  align-items: center;
}

.proj-link{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--cyan);
  transition: gap var(--transition), letter-spacing var(--transition);
  letter-spacing: 0.02em;
}

.proj-link:hover{ 
  letter-spacing: 0.06em; 
}

.proj-link-ghost{
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--white-40);
  border: 1px solid var(--border);
  padding: 4px 12px;
  border-radius: 3px;
  transition: color var(--transition), border-color var(--transition);
}

.proj-link-ghost:hover{
  color: var(--white); 
  border-color: rgba(255,255,255,0.3); 
}

.proj-glow{
  position: absolute;
  bottom: -40px;
  right: -40px;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.08) 0%, transparent 70%);
  pointer-events: none;
  transition: opacity var(--transition);
  opacity: 0;
}

.projeto-card:hover .proj-glow{ 
  opacity: 1; 
}

.projetos-cta{
  text-align: center;
  margin-top: 48px;
}

/* =========================================
   CONTACTO
   ========================================= */
.contacto-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

@media (max-width: 860px){
  .contacto-grid{ 
    grid-template-columns: 1fr; 
    gap: 48px;
  }
}

.contacto-desc{
  font-size: 1rem;
  color: var(--white-70);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 400px;
}

/* Social cards */
.social-links{
  display: flex; 
  flex-direction: column; 
  gap: 12px; 
}

.social-card{
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition), background var(--transition), transform var(--transition);
}

.social-card:hover{
  border-color: var(--cyan);
  background: var(--cyan-dim);
  transform: translateX(4px);
}

.social-icon{
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: var(--white-10);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--cyan);
}

.social-icon svg{ 
  width: 18px; 
  height: 18px; 
}

.social-info{ 
  flex: 1; 
}
.social-info strong{
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-display);
  margin-bottom: 2px;
}

.social-info span{
  font-size: 0.8rem;
  color: var(--white-40);
  font-family: var(--font-mono);
}

.social-arrow{
  color: var(--white-40);
  font-size: 1rem;
  transition: color var(--transition), transform var(--transition);
}

.social-card:hover .social-arrow{
  color: var(--cyan);
  transform: translateX(4px);
}

/* Form */
.contact-form{
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}

.form-header{
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
  text-align: center;
}

.form-tag{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--cyan);
  letter-spacing: 0.06em;
}

.form-group{
  margin-bottom: 20px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.form-group label{
  font-family: var(--font-mono);
  font-size: 0.74rem;
  color: var(--white-40);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.form-group input,
.form-group textarea,
.form-group select{
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 11px 14px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--white);
  outline: none;
  transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
  appearance: none;
  -webkit-appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder{ 
  color: var(--white-40);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus{
  border-color: var(--cyan);
  background: rgba(0,212,255,0.04);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.08);
}

.form-group textarea{ 
  resize: vertical; 
  min-height: 110px; 
  line-height: 1.6;
}

.form-group select{
  color: var(--white);
  cursor: pointer;
  background-image: url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='rgba(255,255,255,0.3)' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

.form-group select option{ 
  background: var(--bg-card);
}

.btn-send{
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: linear-gradient(135deg, var(--cyan), var(--violet));
  color: var(--bg);
  font-family: var(--font-mono);
  font-size: 0.88rem;
  font-weight: 600;
  padding: 14px 20px;
  border-radius: var(--radius);
  letter-spacing: 0.06em;
  transition: opacity var(--transition), transform var(--transition), box-shadow var(--transition);
  cursor: pointer;
}

.btn-send:hover{
  opacity: 0.9;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0,212,255,0.3);
}

.btn-send:disabled{ 
  opacity: 0.5;
  transform: none; 
}

.form-success{
  display: none;
  margin-top: 16px;
  padding: 12px 16px;
  background: rgba(34,197,94,0.1);
  border: 1px solid rgba(34,197,94,0.3);
  border-radius: var(--radius);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: #22c55e;
  text-align: center;
}

.form-success.visible{ 
  display: block;
}

/* =========================================
   parte do rodapé (footer)
   ========================================= */
.footer{
  padding: 48px 0 32px;
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 2;
}

.footer-inner{
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
  margin-bottom: 28px;
}

.footer-copy{
  font-size: 0.82rem;
  color: var(--white-40);
  font-family: var(--font-mono);
}

.footer-socials{
  display: flex;
  gap: 16px;
}

.footer-socials a{
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white-40);
  transition: border-color var(--transition), color var(--transition), background var(--transition);
}

.footer-socials a svg{ 
  width: 16px; 
  height: 16px; 
}

.footer-socials a:hover{
  border-color: var(--cyan);
  color: var(--cyan);
  background: var(--cyan-dim);
}

.footer-line{
  height: 1px;
  background: var(--border);
  margin-bottom: 20px;
}

.footer-bottom{
  text-align: center;
  font-size: 0.75rem;
  color: var(--white-40);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

/* =========================================
   MOBILE MENU
   ========================================= */
@media (max-width: 820px){
  .burger{ 
    display: flex;
  }
  .nav-links{
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 32px;
    background: rgba(8,12,20,0.98);
    backdrop-filter: blur(20px);
    transform: translateX(100%);
    transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
    z-index: 998;
  }

  .nav-links.open{ 
    transform: translateX(0); 
  }

  .nav-item { 
    font-size: 1.1rem; 
  }

  .nav-cta { 
    font-size: 1rem; 
    padding: 14px 36px; 
  }
}

/* =========================================
   REVEAL ANIMATIONS
   ========================================= */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.visible{
  opacity: 1;
  transform: translateY(0);
}

/* =========================================
   SCROLLBAR
   ========================================= */
::-webkit-scrollbar{ 
  width: 5px;
}

::-webkit-scrollbar-track{ 
  background: var(--bg); 
}

::-webkit-scrollbar-thumb{
  background: linear-gradient(180deg, var(--cyan), var(--violet));
  border-radius: 5px;
}

/* =========================================
   SELECTION
   ========================================= */
::selection{
  background: rgba(0,212,255,0.2);
  color: var(--white);
}

/* =========================================
   REDUCED MOTION
   ========================================= */
@media (prefers-reduced-motion: reduce){
  *, *::before, *::after{
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}