@import 'vendor/vivdio-design-system/tokens/tokens.css';
@import 'vendor/vivdio-design-system/tokens/themes.css';
@import 'vendor/vivdio-design-system/tokens/grid.css';

/* Site pessoal — overrides de marca sobre tokens Vivdio */
[data-theme='dark'],
:root {
  --vd-color-primary: #0a84ff;
  --vd-color-primary-hover: #409cff;
  --vd-color-bg: var(--bg-deep, #000);
  --vd-color-fg: var(--text-primary, #f5f5f7);
}

/* ═══════════════════════════════════════════
   Iago Costa — Freelance Landing Page
   ═══════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;700&display=swap');

/* ── Tokens ── */
:root {
  --bg-deep: #000000;
  --bg-card: #1c1c1e;
  --bg-card-hover: #2c2c2e;
  --bg-glass: rgba(28, 28, 30, 0.75);
  --border-subtle: rgba(255, 255, 255, 0.1);
  --border-glow: rgba(10, 132, 255, 0.4);

  --accent-cyan: #0A84FF;
  --accent-teal: #5E5CE6;
  --accent-purple: #BF5AF2;
  --accent-pink: #FF375F;
  --accent-gradient: linear-gradient(135deg, #0A84FF, #5E5CE6);
  --accent-gradient-warm: linear-gradient(135deg, #BF5AF2, #FF375F);

  --text-primary: #f5f5f7;
  --text-secondary: #86868b;
  --text-muted: #6e6e73;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  --font-mono: 'JetBrains Mono', "SF Mono", Menlo, monospace;

  --radius-sm: 8px;
  --radius-md: 18px;
  --radius-lg: 24px;
  --radius-full: 9999px;

  --shadow-glow: 0 0 30px rgba(10, 132, 255, 0.15);
  --shadow-card: 0 10px 40px rgba(0, 0, 0, 0.5);

  --transition-fast: 0.2s cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-smooth: 0.4s cubic-bezier(0.25, 0.1, 0.25, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
  font-size: 16px;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-deep);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--accent-cyan); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--accent-teal); }

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Animated Background ── */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: 0;
  background-image:
    radial-gradient(circle at 20% 20%, rgba(10, 132, 255, 0.05) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(94, 92, 230, 0.05) 0%, transparent 50%);
  pointer-events: none;
}
.bg-grid::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 64px 64px;
}

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  backdrop-filter: blur(30px) saturate(200%);
  background: var(--bg-glass);
  border-bottom: 1px solid var(--border-subtle);
  transition: box-shadow var(--transition-smooth);
}
.navbar.scrolled { box-shadow: var(--shadow-glow); }
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.navbar-logo {
  font-size: 1.25rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.5px;
}
.navbar-logo span { font-weight: 400; opacity: 0.6; }
.navbar-links { display: flex; gap: 32px; list-style: none; }
.navbar-links a {
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}
.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent-gradient);
  border-radius: 1px;
  transition: width var(--transition-smooth);
}
.navbar-links a:hover { color: var(--text-primary); }
.navbar-links a:hover::after { width: 100%; }

.navbar-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--accent-gradient);
  color: var(--bg-deep) !important;
  font-weight: 700;
  font-size: 0.875rem;
  border-radius: var(--radius-full);
  border: none;
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  -webkit-text-fill-color: var(--bg-deep);
}
.navbar-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(56,189,248,0.3);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ── Hero ── */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
}
.hero .container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(10, 132, 255, 0.08);
  border: 1px solid rgba(10, 132, 255, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease-out;
}
.hero-badge .dot {
  width: 8px; height: 8px;
  background: var(--accent-teal);
  border-radius: 50%;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1.5px;
  margin-bottom: 20px;
  animation: fadeInUp 0.6s ease-out 0.1s both;
}
.hero h1 .gradient-text {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 520px;
  animation: fadeInUp 0.6s ease-out 0.2s both;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  animation: fadeInUp 0.6s ease-out 0.3s both;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: var(--accent-gradient);
  color: var(--bg-deep);
  font-weight: 700;
  font-size: 1rem;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(56,189,248,0.3);
  color: var(--bg-deep);
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: transparent;
  color: var(--text-primary);
  font-weight: 600;
  font-size: 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.btn-outline:hover {
  border-color: var(--accent-cyan);
  background: rgba(10, 132, 255, 0.06);
  color: var(--text-primary);
}

/* Hero Visual */
.hero-visual {
  display: flex;
  justify-content: center;
  animation: fadeInUp 0.8s ease-out 0.4s both;
}
.hero-photo-wrapper {
  position: relative;
  width: 340px;
  height: 340px;
}
.hero-photo-wrapper::before {
  content: '';
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  background: var(--accent-gradient);
  opacity: 0.5;
  animation: rotate 8s linear infinite;
}
@keyframes rotate {
  to { transform: rotate(360deg); }
}
.hero-photo-wrapper::after {
  content: '';
  position: absolute;
  inset: -20px;
  border-radius: 50%;
  border: 1px dashed rgba(56,189,248,0.15);
  animation: rotate 20s linear infinite reverse;
}
.hero-photo {
  position: relative;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-deep);
  z-index: 1;
}

/* Stats strip */
.hero-stats {
  display: flex;
  gap: 40px;
  margin-top: 50px;
  animation: fadeInUp 0.6s ease-out 0.5s both;
}
.hero-stat-number {
  font-size: 2rem;
  font-weight: 800;
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ── Section common ── */
section { position: relative; z-index: 1; padding: 100px 0; }

.section-header {
  text-align: center;
  margin-bottom: 64px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 16px;
}
.section-tag::before, .section-tag::after {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--accent-cyan);
  opacity: 0.4;
}
.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -1px;
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ── Services ── */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}
.service-card:hover {
  border-color: var(--border-glow);
  background: var(--bg-card-hover);
  transform: scale(1.02);
  box-shadow: var(--shadow-card);
}
.service-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(10, 132, 255, 0.08);
  color: var(--accent-cyan);
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.service-card:nth-child(2) .service-icon { background: rgba(94, 92, 230, 0.08); color: var(--accent-purple); }
.service-card:nth-child(3) .service-icon { background: rgba(10, 132, 255, 0.08); color: var(--accent-teal); }
.service-card:nth-child(4) .service-icon { background: rgba(255, 55, 95, 0.08); color: var(--accent-pink); }
.service-card:nth-child(5) .service-icon { background: rgba(10, 132, 255, 0.08); color: var(--accent-cyan); }
.service-card:nth-child(6) .service-icon { background: rgba(94, 92, 230, 0.08); color: var(--accent-purple); }

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.service-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── Tech Stack ── */
.tech-categories {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.tech-category {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px 24px;
  transition: all var(--transition-smooth);
}
.tech-category:hover {
  border-color: var(--border-glow);
  transform: scale(1.02);
  box-shadow: var(--shadow-card);
}
.tech-category h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.tech-category h3 i { color: var(--accent-cyan); }
.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tech-tag {
  padding: 6px 14px;
  background: rgba(10, 132, 255, 0.06);
  border: 1px solid rgba(10, 132, 255, 0.12);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: all var(--transition-fast);
}
.tech-tag:hover {
  background: rgba(10, 132, 255, 0.12);
  color: var(--accent-cyan);
  border-color: rgba(10, 132, 255, 0.3);
}

/* ── Projects ── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 32px;
  transition: all var(--transition-smooth);
}
.project-card:hover {
  border-color: var(--border-glow);
  transform: scale(1.02);
  box-shadow: var(--shadow-card);
}
.project-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 16px;
}
.project-card h3 { font-size: 1.1rem; font-weight: 700; }
.project-type {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-teal);
  padding: 4px 10px;
  background: rgba(45,212,191,0.08);
  border-radius: var(--radius-full);
}
.project-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 16px;
  line-height: 1.6;
}
.project-stack {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.project-stack span {
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 12px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-cyan);
}
.project-link.muted { color: var(--text-muted); font-weight: 500; }

/* ── Publications ── */
.publications-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.pub-item {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 28px;
  border-left: 3px solid var(--accent-purple);
  transition: all var(--transition-smooth);
}
.pub-item:hover {
  border-color: var(--border-glow);
  border-left-color: var(--accent-cyan);
  transform: translateX(6px);
}
.pub-item h4 { font-size: 1rem; font-weight: 600; margin-bottom: 8px; }
.pub-item p { font-size: 0.85rem; color: var(--text-secondary); line-height: 1.6; }
.pub-item .pub-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 10px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-cyan);
}

/* ── CTA Section ── */
.cta-section {
  background: linear-gradient(135deg, rgba(10, 132, 255, 0.06), rgba(94, 92, 230, 0.06));
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}
.cta-content {
  text-align: center;
  max-width: 650px;
  margin: 0 auto;
}
.cta-content h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}
.cta-content p {
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-size: 1.05rem;
}
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ── */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border-subtle);
  padding: 48px 0 32px;
}
.footer-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-copy { font-size: 0.85rem; color: var(--text-muted); }
.footer-socials { display: flex; gap: 16px; }
.footer-socials a {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}
.footer-socials a:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
  background: rgba(10, 132, 255, 0.06);
  transform: translateY(-3px);
}

/* ── Animations ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.7s cubic-bezier(.4,0,.2,1);
}
.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-categories { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .navbar-links { display: none; }
  .menu-toggle { display: block; }
  .navbar-cta { display: none; }

  .hero .container { grid-template-columns: 1fr; text-align: center; }
  .hero-subtitle { margin: 0 auto 36px; }
  .hero-actions { justify-content: center; }
  .hero-visual { order: -1; }
  .hero-photo-wrapper { width: 240px; height: 240px; }
  .hero-stats { justify-content: center; gap: 30px; }

  .services-grid { grid-template-columns: 1fr; }
  .tech-categories { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .cta-buttons { flex-direction: column; align-items: center; }
  .footer-content { flex-direction: column; text-align: center; }
}

/* Mobile nav overlay */
.mobile-nav {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(10,10,15,0.95);
  backdrop-filter: blur(20px);
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
}
.mobile-nav .close-btn {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 2rem;
  cursor: pointer;
}