/* ==========================================================================
   TOKENS
   ========================================================================== */
:root{
  --bg: #0a0908;
  --bg-card: #121110;
  --cream: #f3efe6;
  --gray: #8f8b83;
  --gray-soft: #6f6b64;
  --gray-ghost: #35322d;
  --blue: #7ea6cf;
  --accent: #ff4718;
  --accent-dim: rgba(255, 71, 24, 0.14);
  --border: rgba(255, 255, 255, 0.09);
  --border-soft: rgba(255, 255, 255, 0.06);

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

  --container: 1240px;
  --section-pad: clamp(5rem, 10vw, 8rem);
}

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

html{ scroll-behavior: smooth; }

body{
  background: var(--bg);
  color: var(--cream);
  font-family: var(--font-body);
  font-weight: 300;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

@media (prefers-reduced-motion: reduce){
  *{ animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  html{ scroll-behavior: auto; }
}

::selection{ background: var(--accent); color: var(--bg); }

:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.container{
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
}

.section{
  position: relative;
  min-height: 100vh;
  padding: var(--section-pad) 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.text-accent{ color: var(--accent); }

/* Scroll reveal */
.reveal{
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.8s cubic-bezier(.22,.61,.36,1), transform 0.8s cubic-bezier(.22,.61,.36,1);
}
.reveal.is-visible{ opacity: 1; transform: translateY(0); }

/* ==========================================================================
   NAV
   ========================================================================== */
.nav{
  position: fixed;
  top: 1.75rem;
  right: clamp(1.25rem, 4vw, 3rem);
  z-index: 100;
  background: rgba(15, 14, 13, 0.55);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.4rem;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.nav-list{
  display: flex;
  align-items: center;
  gap: 0.15rem;
}

.nav-link{
  display: inline-block;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--cream);
  opacity: 0.75;
  transition: opacity 0.25s ease, background 0.25s ease, color 0.25s ease;
  white-space: nowrap;
}

.nav-link:hover{ opacity: 1; }

.nav-link.active{
  background: var(--accent);
  color: #17100b;
  opacity: 1;
  font-weight: 600;
}

/* Back to top */
.back-to-top{
  position: fixed;
  top: 1.75rem;
  left: clamp(1.25rem, 4vw, 3rem);
  z-index: 100;
  width: 42px;
  height: 42px;
  border: 1px solid var(--border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cream);
  background: rgba(15, 14, 13, 0.55);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s, border-color 0.3s ease;
}

.back-to-top.visible{
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover{ border-color: var(--accent); color: var(--accent); }

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{ padding-top: 6rem; }

.hero-glow{
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(60% 45% at 50% 8%, rgba(255, 71, 24, 0.16) 0%, rgba(255, 71, 24, 0.05) 45%, transparent 75%);
}

.hero-container{ position: relative; z-index: 1; }

.eyebrow{
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 2rem;
}

.eyebrow-dash{ color: var(--gray-soft); }
.eyebrow-muted{ color: var(--gray); }
.eyebrow-dot{ color: var(--gray-soft); }
.eyebrow-accent{ color: var(--blue); }

.hero-title{
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(3.2rem, 10vw, 7.5rem);
  line-height: 0.94;
  letter-spacing: -0.02em;
}

.hero-title .line{ display: block; }
.line-cream{ color: var(--cream); }

.line-accent-wrap{
  position: relative;
  display: flex;
  align-items: center;
}

.line-accent{ color: var(--accent); }

.hero-orb{
  width: clamp(1.4rem, 2.5vw, 2rem);
  height: clamp(1.4rem, 2.5vw, 2rem);
  border-radius: 50%;
  border: 1px solid var(--gray-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-left: clamp(1rem, 2vw, 1.75rem);
  flex-shrink: 0;
}

.hero-orb-dot{
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-desc{
  max-width: 34rem;
  margin-top: 2.25rem;
  color: var(--gray);
  font-size: clamp(1rem, 1.4vw, 1.1rem);
  font-weight: 300;
  line-height: 1.7;
}

.hero-footer{
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 4rem;
  padding: 0 clamp(1.5rem, 5vw, 3rem);
}

.scroll-cue{
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  color: var(--gray);
  transition: color 0.25s ease;
}

.scroll-cue:hover{ color: var(--cream); }

.scroll-cue-circle{
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  animation: bob 2.4s ease-in-out infinite;
}

@keyframes bob{
  0%, 100%{ transform: translateY(0); }
  50%{ transform: translateY(4px); }
}

.hero-status{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--gray-soft);
  text-transform: uppercase;
}

/* ==========================================================================
   MARQUEE — FAIXA DE TECNOLOGIAS
   ========================================================================== */
.marquee-strip{
  position: relative;
  width: 100%;
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: clamp(1.5rem, 3vw, 2.25rem) 0;
  background: var(--bg);
}

.marquee-strip::before,
.marquee-strip::after{
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: clamp(2.5rem, 8vw, 9rem);
  z-index: 2;
  pointer-events: none;
}

.marquee-strip::before{
  left: 0;
  background: linear-gradient(to right, var(--bg), transparent);
}

.marquee-strip::after{
  right: 0;
  background: linear-gradient(to left, var(--bg), transparent);
}

.marquee-track{
  display: flex;
  width: max-content;
  animation: marquee-scroll 36s linear infinite;
}

.marquee-strip:hover .marquee-track{
  animation-play-state: paused;
}

.marquee-group{
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.marquee-item{
  display: inline-flex;
  align-items: center;
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(1.6rem, 4vw, 3rem);
  letter-spacing: -0.01em;
  line-height: 1;
  white-space: nowrap;
  padding: 0 clamp(1.25rem, 2.5vw, 2.5rem);
}

.marquee-item-outline{
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(243, 239, 230, 0.28);
}

.marquee-item-solid{
  color: var(--accent);
}

.marquee-sep{
  color: var(--accent);
  width: clamp(1rem, 2vw, 1.4rem);
  height: clamp(1rem, 2vw, 1.4rem);
  flex-shrink: 0;
}

@keyframes marquee-scroll{
  from{ transform: translateX(0); }
  to{ transform: translateX(-50%); }
}

@media (prefers-reduced-motion: reduce){
  .marquee-track{ animation: none; }
}

/* ==========================================================================
   SHARED SECTION HEADERS
   ========================================================================== */
.eyebrow-tag{
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.16em;
  color: var(--accent);
  margin-bottom: 0.9rem;
}

.section-rule{
  height: 1px;
  background: linear-gradient(to right, var(--border), transparent);
  margin-bottom: 3.5rem;
}

/* ==========================================================================
   ABOUT
   ========================================================================== */
.about-grid{
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: clamp(3rem, 6vw, 6rem);
}

.about-photo {
    width: 100%;
    aspect-ratio: 1 / 1.05;
    border-radius: 6px;
    overflow: hidden;
    border: 1px solid var(--border);
    background: linear-gradient(160deg, #1c1a17, #080706 70%);
}

.about-photo-placeholder {
    width: 100%;
    height: 100%;
}
.about-photo-placeholder img {
    width: 100%;
    height: 100%;
    display: block;
    object-fit: cover;
    object-position: center -50px;
}

.about-photo-caption{
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--gray-soft);
  text-transform: uppercase;
  margin-top: 1rem;
}

.stats-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  margin-top: 2.75rem;
}

.stat{ display: flex; flex-direction: column; gap: 0.35rem; }

.stat-number{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(2rem, 3vw, 2.6rem);
  color: var(--cream);
  line-height: 1;
}

.stat-label{
  font-size: 0.85rem;
  color: var(--gray);
  font-weight: 300;
}

.about-heading{
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(2rem, 4vw, 3.1rem);
  line-height: 1.12;
  letter-spacing: -0.01em;
  margin-bottom: 3.5rem;
  max-width: 30rem;
}

.feature-list{
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.feature-item{
  display: grid;
  grid-template-columns: 4.5rem 1fr;
  gap: 1.5rem;
  padding-bottom: 2.5rem;
  border-bottom: 1px solid var(--border-soft);
}

.feature-item:last-child{ border-bottom: none; padding-bottom: 0; }

.feature-number{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 2.75rem;
  color: var(--gray-ghost);
  line-height: 1;
}

.feature-content h3{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.3rem;
  margin-bottom: 0.7rem;
  color: var(--cream);
}

.feature-content p{
  color: var(--gray);
  font-size: 0.98rem;
  font-weight: 300;
  max-width: 32rem;
}

/* ==========================================================================
   PROJECTS
   ========================================================================== */
.projects-top{
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
}

.section-index{
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--gray-soft);
}

.projects-heading{
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(2rem, 4.5vw, 3.4rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  max-width: 44rem;
  margin-bottom: 3.5rem;
}

.projects-grid{
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  grid-template-rows: repeat(2, 1fr);
  gap: 1.5rem;
}

.project-card{
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.project-card:hover{
  border-color: rgba(255, 71, 24, 0.35);
  transform: translateY(-4px);
}

.project-card-large{
  grid-row: 1 / 3;
}

.project-media{
  position: relative;
  aspect-ratio: 16 / 11;
  background: linear-gradient(155deg, #1c1a17 0%, #0c0b0a 60%);
}

.project-card-large .project-media{ aspect-ratio: 16 / 12; flex: 1; }

.project-media-1{
  background:
    radial-gradient(circle at 75% 30%, rgba(255,71,24,0.10), transparent 55%),
    linear-gradient(150deg, #1e1b17 0%, #0a0908 65%);
}
.project-media-2{
  background:
    radial-gradient(circle at 30% 70%, rgba(126,166,207,0.10), transparent 55%),
    linear-gradient(155deg, #191c1e 0%, #0a0908 65%);
}
.project-media-3{
  background:
    radial-gradient(circle at 60% 25%, rgba(255,71,24,0.08), transparent 55%),
    linear-gradient(155deg, #1a1816 0%, #0a0908 65%);
}

.project-year{
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  background: rgba(10, 9, 8, 0.7);
  border: 1px solid var(--border);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  color: var(--gray);
}

.project-info{ padding: 1.5rem; }

.project-tag{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.6rem;
}

.project-title{
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.4rem;
  color: var(--cream);
  margin-bottom: 1rem;
}

.project-stack{ display: flex; flex-wrap: wrap; gap: 0.5rem; }

.pill{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.03em;
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--gray);
}

/* ==========================================================================
   CONTACT
   ========================================================================== */
.contact-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(3rem, 6vw, 6rem);
  align-items: start;
}

.contact-heading{
  font-family: var(--font-display);
  font-weight: 700;
  text-transform: uppercase;
  font-size: clamp(2.2rem, 5vw, 3.3rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  margin-bottom: 1.5rem;
}

.contact-heading-accent{ position: relative; }

.contact-orb{
  position: absolute;
  top: 0.15em;
  right: -1.6em;
  width: 0.6em;
  height: 0.6em;
  border-radius: 50%;
  border: 1px solid var(--gray-soft);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.contact-orb-dot{
  width: 28%;
  height: 28%;
  border-radius: 50%;
  background: var(--cream);
}

.contact-desc{
  color: var(--gray);
  max-width: 28rem;
  margin-bottom: 2.75rem;
}

.contact-info{
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.contact-label{
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--gray-soft);
  margin-bottom: 0.4rem;
}

.contact-value{
  font-size: 1.1rem;
  color: var(--cream);
  transition: color 0.25s ease;
}

a.contact-value:hover{ color: var(--accent); }

.social-links{
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.social-link{
  font-size: 0.9rem;
  color: var(--gray);
  position: relative;
  transition: color 0.25s ease;
}

.social-link:hover{ color: var(--cream); }

.contact-form{
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
}

.form-field{
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
  transition: border-color 0.25s ease;
}

.form-field:focus-within{ border-color: var(--accent); }

.form-field label{
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  color: var(--gray-soft);
}

.form-field input,
.form-field textarea{
  background: transparent;
  border: none;
  color: var(--cream);
  font-size: 1rem;
  font-family: var(--font-body);
  font-weight: 300;
  resize: none;
}

.form-field input::placeholder,
.form-field textarea::placeholder{ color: var(--gray-soft); }

.form-field input:focus,
.form-field textarea:focus{ outline: none; }

.btn-submit{
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 0.5rem;
  padding: 0.9rem 1.75rem;
  background: var(--accent);
  color: #17100b;
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: 999px;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.btn-submit:hover{
  transform: translateY(-2px);
  box-shadow: 0 12px 28px -10px rgba(255, 71, 24, 0.55);
}

.btn-icon{ transition: transform 0.25s ease; }
.btn-submit:hover .btn-icon{ transform: translateX(3px); }

.form-feedback{
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--gray);
  min-height: 1.2em;
}

.form-feedback.success{ color: var(--accent); }

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media (max-width: 900px){
  .about-grid,
  .contact-grid{
    grid-template-columns: 1fr;
  }

  .about-photo{ max-width: 320px; }

  .projects-grid{
    grid-template-columns: 1fr;
    grid-template-rows: none;
  }

  .project-card-large{ grid-row: auto; }

  .hero-footer{ flex-direction: column; align-items: flex-start; gap: 1.25rem; }
}

@media (max-width: 640px){
  .nav{ top: 1rem; right: 1rem; padding: 0.3rem; }
  .nav-link{ padding: 0.5rem 0.75rem; font-size: 0.72rem; }
  .back-to-top{ top: 1rem; left: 1rem; width: 38px; height: 38px; }

  .hero{ padding-top: 5rem; }
  .hero-orb{ display: none; }

  .feature-item{ grid-template-columns: 1fr; gap: 0.5rem; }
  .feature-number{ font-size: 2rem; }

  .contact-orb{ display: none; }

  .marquee-item{ padding: 0 1rem; }
  .marquee-track{ animation-duration: 24s; }
}