/* ============================================
   Giovanni Mendes — Portfólio
   Design system: Dark Mode (OLED) · Inter
   ============================================ */

:root {
  --color-primary: #1E293B;
  --color-secondary: #334155;
  --color-accent: #22C55E;
  --color-accent-hover: #16A34A;
  --color-accent-soft: rgba(34, 197, 94, 0.12);
  --color-background: #0F172A;
  --color-surface: #16203A;
  --color-foreground: #F8FAFC;
  --color-text-muted: #94A3B8;
  --color-muted: #272F42;
  --color-border: #2E3A52;
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;
  --space-7: 6rem;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-glow: 0 0 40px rgba(34, 197, 94, 0.15);
  --transition: 200ms ease-out;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--color-background);
  color: var(--color-foreground);
  line-height: 1.6;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: rgba(15, 23, 42, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--transition);
}

.navbar.scrolled { border-bottom-color: var(--color-border); }

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-weight: 700;
  font-size: 1.05rem;
}

.logo-mark {
  font-family: var(--font-mono);
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 0.2rem 0.5rem;
  border-radius: 8px;
  font-size: 0.85rem;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
  padding: 0.5rem 0.25rem;
}

.nav-link:hover, .nav-link:focus-visible { color: var(--color-foreground); }

.nav-link.active { color: var(--color-accent); }

.nav-cta {
  color: var(--color-background);
  background: var(--color-accent);
  padding: 0.55rem 1.2rem;
  border-radius: 999px;
  font-weight: 600;
}

.nav-cta:hover, .nav-cta:focus-visible {
  background: var(--color-accent-hover);
  color: var(--color-background);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  color: var(--color-foreground);
  padding: 0.45rem;
  cursor: pointer;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: var(--color-accent);
  color: #052E16;
}

.btn-primary:hover, .btn-primary:focus-visible {
  background: var(--color-accent-hover);
  box-shadow: var(--shadow-glow);
}

.btn-ghost {
  border: 1px solid var(--color-border);
  color: var(--color-foreground);
}

.btn-ghost:hover, .btn-ghost:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: calc(68px + var(--space-7)) 0 var(--space-7);
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -200px;
  right: -100px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(34, 197, 94, 0.08) 0%, transparent 65%);
  pointer-events: none;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: var(--space-6);
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 0.4rem 1rem;
  border-radius: 999px;
  margin-bottom: var(--space-3);
}

.status-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 rgba(34,197,94,0.5); }
  50% { opacity: 0.7; box-shadow: 0 0 0 5px rgba(34,197,94,0); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-3);
}

.hero-title-accent {
  background: linear-gradient(90deg, var(--color-accent), #4ADE80);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 34rem;
  margin-bottom: var(--space-4);
}

.hero-actions {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
  margin-bottom: var(--space-5);
}

/* Terminal */
.hero-terminal {
  background: #0B1120;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 30rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.6rem 0.9rem;
  background: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
}

.terminal-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--color-secondary);
}

.terminal-dot:first-child { background: #F87171; }
.terminal-dot:nth-child(2) { background: #FBBF24; }
.terminal-dot:nth-child(3) { background: #34D399; }

.terminal-title {
  margin-left: 0.5rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

.terminal-body {
  padding: 1rem;
  color: var(--color-foreground);
  white-space: pre-wrap;
  word-break: break-word;
}

.t-prompt { color: var(--color-accent); }
.t-cmd { color: #E2E8F0; }
.t-cursor { color: var(--color-accent); animation: blink 1s step-end infinite; }

@keyframes blink { 50% { opacity: 0; } }

/* Hero photo */
.hero-photo {
  position: relative;
  justify-self: center;
}

.photo-frame {
  width: min(320px, 75vw);
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  position: relative;
}

.photo-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  box-shadow: inset 0 0 0 1px rgba(34, 197, 94, 0.15);
  pointer-events: none;
}

.photo-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.photo-fallback {
  display: none;
  position: absolute;
  inset: 0;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  color: var(--color-text-muted);
  text-align: center;
  font-size: 0.9rem;
  background:
    radial-gradient(circle at 30% 20%, rgba(34,197,94,0.07), transparent 50%),
    var(--color-surface);
}

.photo-fallback small {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent);
}

.photo-placeholder .photo-fallback { display: flex; }

.photo-badge {
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.5rem 1rem;
  border-radius: 999px;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

/* ===== Sections ===== */
.section { padding: var(--space-7) 0; }

.section-alt {
  background: linear-gradient(180deg, transparent, rgba(30, 41, 59, 0.35), transparent);
}

.section-header {
  text-align: center;
  max-width: 40rem;
  margin: 0 auto var(--space-5);
}

.section-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent);
  margin-bottom: var(--space-1);
}

.section-title {
  font-size: clamp(1.7rem, 3.5vw, 2.4rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-subtitle {
  color: var(--color-text-muted);
  margin-top: var(--space-2);
}

/* ===== Sobre ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
  align-items: start;
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
  font-size: 1.05rem;
}

.about-text strong { color: var(--color-foreground); }

.about-cards {
  display: grid;
  gap: var(--space-2);
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  transition: border-color var(--transition), transform var(--transition);
}

.stat-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-2px);
}

.stat-card svg { color: var(--color-accent); margin-bottom: var(--space-1); }

.stat-card h3 { font-size: 1.05rem; margin-bottom: 0.35rem; }

.stat-card p { color: var(--color-text-muted); font-size: 0.925rem; }

/* ===== Stack ===== */
.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: var(--space-2);
}

.stack-item {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-3);
  transition: border-color var(--transition), transform var(--transition);
  cursor: default;
}

.stack-item:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.stack-item::after {
  content: attr(data-level);
  position: absolute;
  top: var(--space-2);
  right: var(--space-2);
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
}

.stack-name { font-weight: 700; font-size: 1.05rem; }

.stack-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--color-text-muted);
}

/* ===== Projetos ===== */
.project-card {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: var(--space-5);
  align-items: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.project-card:hover {
  border-color: rgba(34, 197, 94, 0.45);
  box-shadow: var(--shadow-glow);
}

/* Browser mockup */
.browser-mock {
  background: #0B1120;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.browser-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.6rem 0.9rem;
  background: var(--color-muted);
  border-bottom: 1px solid var(--color-border);
}

.browser-url {
  margin-left: auto;
  margin-right: auto;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--color-text-muted);
  background: var(--color-background);
  padding: 0.2rem 1.4rem;
  border-radius: 999px;
}

.browser-body {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: var(--space-2);
  padding: var(--space-2);
  min-height: 220px;
}

.mock-sidebar {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  background: var(--color-muted);
  border-radius: 8px;
  padding: 0.8rem 0.6rem;
}

.mock-line {
  height: 8px;
  border-radius: 4px;
  background: var(--color-secondary);
}

.w-50 { width: 50%; } .w-60 { width: 60%; } .w-70 { width: 70%; } .w-80 { width: 80%; }

.mock-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.mock-kpis {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.6rem;
}

.mock-kpi {
  height: 44px;
  border-radius: 8px;
  background: var(--color-muted);
  border: 1px solid var(--color-border);
}

.mock-chart {
  flex: 1;
  display: flex;
  align-items: flex-end;
  gap: 0.6rem;
  background: var(--color-muted);
  border-radius: 8px;
  padding: 0.8rem;
}

.mock-chart span {
  flex: 1;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, var(--color-accent), rgba(34, 197, 94, 0.3));
  min-height: 10%;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: var(--space-2);
}

.tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--color-accent);
  background: var(--color-accent-soft);
  padding: 0.25rem 0.7rem;
  border-radius: 999px;
}

.project-title {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-2);
}

.project-desc {
  color: var(--color-text-muted);
  margin-bottom: var(--space-3);
}

.project-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-bottom: var(--space-4);
}

.project-features li {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.95rem;
}

.project-features svg { color: var(--color-accent); flex-shrink: 0; }

.projects-soon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.7rem;
  margin-top: var(--space-4);
  padding: var(--space-3);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.projects-soon svg { color: var(--color-accent); flex-shrink: 0; }

/* ===== Contato ===== */
.contact-inner { text-align: center; }

.contact-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-2);
  max-width: 56rem;
  margin: 0 auto;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.4rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-3);
  transition: border-color var(--transition), transform var(--transition);
}

.contact-card:hover, .contact-card:focus-visible {
  border-color: var(--color-accent);
  transform: translateY(-3px);
}

.contact-card svg { color: var(--color-accent); margin-bottom: 0.3rem; }

.contact-label { font-weight: 600; }

.contact-value {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  word-break: break-all;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-3) 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2);
  color: var(--color-text-muted);
  font-size: 0.9rem;
}

.footer-code {
  font-family: var(--font-mono);
  color: var(--color-accent);
}

.footer-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px; height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-muted);
  transition: border-color var(--transition), color var(--transition);
}

.footer-top:hover, .footer-top:focus-visible {
  border-color: var(--color-accent);
  color: var(--color-accent);
}

/* ===== Scroll reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 500ms ease-out, transform 500ms ease-out;
}

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

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }

/* ===== Focus visible ===== */
:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ===== Reduced motion ===== */
@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;
  }
  .reveal { opacity: 1; transform: none; }
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .hero-photo { order: -1; }

  .about-grid { grid-template-columns: 1fr; gap: var(--space-4); }

  .project-card { grid-template-columns: 1fr; padding: var(--space-3); }
}

@media (max-width: 768px) {
  .nav-toggle { display: inline-flex; }

  .nav-links {
    position: absolute;
    top: 68px;
    left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--color-background);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-2) var(--space-3) var(--space-3);
    display: none;
  }

  .nav-links.open { display: flex; }

  .nav-link { padding: 0.9rem 0.25rem; font-size: 1rem; }

  .nav-cta {
    text-align: center;
    margin-top: var(--space-1);
  }

  .section { padding: var(--space-6) 0; }

  .hero { padding-top: calc(68px + var(--space-5)); }
}