/* ====================================================
   DESIGN TOKENS
   ==================================================== */
:root {
  --bg-900: #080b10;
  --bg-800: #0d1117;
  --bg-700: #111827;
  --bg-card: #131c2b;
  --bg-card-hover: #172035;

  --cyan: #00e5c8;
  --cyan-dim: #00c4ac;
  --cyan-glow: rgba(0, 229, 200, 0.15);
  --cyan-glow-strong: rgba(0, 229, 200, 0.3);

  --text-primary: #f0f4f8;
  --text-secondary: #94a3b8;
  --text-muted: #4b5a6d;

  --border: rgba(255, 255, 255, 0.07);
  --border-accent: rgba(0, 229, 200, 0.25);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;

  --nav-h: 68px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.45);
  --shadow-glow: 0 0 60px rgba(0, 229, 200, 0.12);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
  font-size: 16px;
}

body {
  font-family: 'Inter', system-ui, sans-serif;
  background-color: var(--bg-900);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ====================================================
   BACKGROUND CANVAS
   ==================================================== */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.45;
}

/* ====================================================
   UTILITIES
   ==================================================== */
.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
}

.gradient-text {
  background: linear-gradient(135deg, var(--cyan) 0%, #4ade80 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section {
  position: relative;
  z-index: 1;
  padding: 100px 0;
}

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.8rem;
  color: var(--cyan);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 12px;
  opacity: 0.9;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-title {
  font-size: clamp(2rem, 5vw, 2.8rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.section-sub {
  margin-top: 14px;
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ====================================================
   BUTTONS
   ==================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: 50px;
  padding: 14px 28px;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--cyan) 0%, #4ade80 100%);
  color: var(--bg-900);
  box-shadow: 0 0 28px rgba(0, 229, 200, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 48px rgba(0, 229, 200, 0.55);
}

.btn-primary svg {
  transition: transform 0.25s;
}

.btn-primary:hover svg {
  transform: translateX(4px);
}

.btn-ghost {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.btn-ghost:hover {
  background: rgba(255,255,255,0.05);
  border-color: var(--border-accent);
  color: var(--cyan);
}

.cta-nav {
  background: linear-gradient(135deg, var(--cyan) 0%, #4ade80 100%) !important;
  color: var(--bg-900) !important;
  padding: 8px 20px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.88rem;
}

.cta-nav:hover {
  opacity: 0.9;
  transform: translateY(-1px);
}

/* ====================================================
   NAVBAR
   ==================================================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(8, 11, 16, 0.88);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 var(--border);
}

.nav-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo-bracket { color: var(--cyan); }

.nav-links {
  display: flex;
  align-items: center;
  list-style: none;
  gap: 6px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.92rem;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,0.05);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ====================================================
   HERO
   ==================================================== */
.hero {
  position: relative;
  z-index: 1;
  min-height: 100svh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 48px;
  padding: calc(var(--nav-h) + 60px) 24px 80px;
  max-width: 1120px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0, 229, 200, 0.08);
  border: 1px solid var(--border-accent);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--cyan);
  margin-bottom: 24px;
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 0 rgba(0, 229, 200, 0.5); }
  50% { opacity: 0.8; transform: scale(1.1); box-shadow: 0 0 0 6px rgba(0, 229, 200, 0); }
}

.hero-title {
  font-size: clamp(2.4rem, 5.5vw, 3.8rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.hero-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.65;
  max-width: 490px;
  margin-bottom: 36px;
}

.hero-subtitle strong {
  color: var(--cyan);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 24px;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat-number {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--cyan);
  line-height: 1;
  font-family: 'JetBrains Mono', monospace;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.stat-divider {
  width: 1px;
  height: 36px;
  background: var(--border);
}

/* Code Card */
.hero-visual {
  display: flex;
  justify-content: center;
  align-items: center;
}

.code-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), var(--shadow-glow);
  width: 100%;
  max-width: 440px;
  animation: float 5s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

.code-card-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 18px;
  background: rgba(255,255,255,0.04);
  border-bottom: 1px solid var(--border);
}

.dot { width: 11px; height: 11px; border-radius: 50%; }
.dot-red { background: #ff5f57; }
.dot-yellow { background: #ffbd2e; }
.dot-green { background: #28c840; }

.code-filename {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-left: 8px;
}

.code-block {
  padding: 22px 24px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.82rem;
  line-height: 1.85;
  overflow-x: auto;
}

.code-block code { display: block; white-space: pre; }
.kw { color: #c792ea; }
.im { color: var(--cyan); }
.fn { color: #82aaff; }
.cm { color: #546e7a; }
.st { color: #c3e88d; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 2;
}

.scroll-line {
  width: 2px;
  height: 40px;
  background: linear-gradient(to bottom, var(--cyan), transparent);
  border-radius: 2px;
  animation: scrollAnim 2.5s ease-in-out infinite;
}

@keyframes scrollAnim {
  0%, 100% { opacity: 0.2; height: 20px; }
  50% { opacity: 1; height: 40px; }
}

.scroll-indicator span {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* ====================================================
   ABOUT
   ==================================================== */
.about {
  background: linear-gradient(180deg, transparent 0%, rgba(0, 229, 200, 0.03) 50%, transparent 100%);
}

.about-grid {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 72px;
  align-items: center;
}

.about-photo-wrap {
  display: flex;
  justify-content: center;
}

.photo-frame {
  position: relative;
  width: 280px;
  height: 280px;
}

.photo-placeholder {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--bg-card) 0%, var(--bg-700) 100%);
  border: 2px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 0 60px rgba(0, 229, 200, 0.15);
}

.initials {
  font-family: 'JetBrains Mono', monospace;
  font-size: 3rem;
  font-weight: 700;
  color: var(--cyan);
  z-index: 1;
}

.profile-photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  border-radius: 50%;
  z-index: 1;
}

.photo-ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid var(--border-accent);
  animation: ringPulse 3s ease-in-out infinite;
}

.ring-1 {
  inset: -16px;
  animation-delay: 0s;
  opacity: 0.4;
}

.ring-2 {
  inset: -32px;
  animation-delay: 1.5s;
  opacity: 0.2;
}

@keyframes ringPulse {
  0%, 100% { transform: scale(1); opacity: 0.3; }
  50% { transform: scale(1.03); opacity: 0.6; }
}

.photo-badge {
  position: absolute;
  bottom: -10px;
  right: -20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: var(--shadow-card);
  backdrop-filter: blur(10px);
  z-index: 10;
}

.badge-icon { font-size: 1.4rem; }

.badge-title {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--cyan);
  font-family: 'JetBrains Mono', monospace;
}

.badge-sub {
  display: block;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-top: 1px;
}

.about-desc {
  color: var(--text-secondary);
  line-height: 1.75;
  font-size: 1.05rem;
  margin-top: 18px;
}

.about-desc strong {
  color: var(--text-primary);
  font-weight: 600;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 28px;
}

.tag {
  background: rgba(0, 229, 200, 0.07);
  border: 1px solid var(--border-accent);
  color: var(--cyan);
  padding: 5px 14px;
  border-radius: 50px;
  font-size: 0.82rem;
  font-weight: 500;
  font-family: 'JetBrains Mono', monospace;
  transition: var(--transition);
}

.tag:hover {
  background: rgba(0, 229, 200, 0.15);
}

/* ====================================================
   SERVICES
   ==================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.service-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  cursor: default;
}

.service-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-card), 0 0 40px rgba(0, 229, 200, 0.1);
}

.service-card.featured {
  border-color: var(--border-accent);
  background: linear-gradient(145deg, var(--bg-card) 0%, #0d2030 100%);
  box-shadow: var(--shadow-card), 0 0 50px rgba(0, 229, 200, 0.12);
}

.service-badge-top {
  position: absolute;
  top: 20px;
  right: 20px;
  background: linear-gradient(135deg, var(--cyan), #4ade80);
  color: var(--bg-900);
  font-size: 0.68rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.service-icon-wrap {
  margin-bottom: 20px;
}

.service-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 229, 200, 0.08);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  color: var(--cyan);
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: rgba(0, 229, 200, 0.15);
  box-shadow: 0 0 24px rgba(0, 229, 200, 0.2);
}

.service-num {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: var(--text-muted);
  margin-bottom: 10px;
  letter-spacing: 0.1em;
}

.service-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  margin-bottom: 12px;
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  margin-bottom: 20px;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.service-features span {
  font-size: 0.8rem;
  color: var(--cyan);
  font-family: 'JetBrains Mono', monospace;
  opacity: 0.85;
}

.service-glow {
  position: absolute;
  bottom: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  background: radial-gradient(circle, rgba(0, 229, 200, 0.06) 0%, transparent 70%);
  pointer-events: none;
}

/* ====================================================
   WHY ME
   ==================================================== */
.why-me {
  background: linear-gradient(180deg, transparent 0%, rgba(0, 229, 200, 0.03) 50%, transparent 100%);
}

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.why-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: transform var(--transition), border-color var(--transition);
}

.why-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
}

.why-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
  display: block;
  filter: drop-shadow(0 0 12px rgba(0, 229, 200, 0.3));
}

.why-title {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
  line-height: 1.3;
}

.why-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ====================================================
   CONTACT
   ==================================================== */
.contact-box {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 56px;
  box-shadow: var(--shadow-card);
  align-items: center;
  position: relative;
  overflow: hidden;
}

.contact-box::before {
  content: '';
  position: absolute;
  top: -80px;
  left: -80px;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(0, 229, 200, 0.07) 0%, transparent 70%);
  pointer-events: none;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}

.contact-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 229, 200, 0.07);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-sm);
  color: var(--cyan);
  flex-shrink: 0;
}

.contact-cta {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(135deg, #25d366, #128c7e);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  padding: 18px 30px;
  border-radius: 50px;
  text-decoration: none;
  box-shadow: 0 0 40px rgba(37, 211, 102, 0.3);
  transition: var(--transition);
  text-align: center;
}

.btn-whatsapp:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 0 64px rgba(37, 211, 102, 0.5);
}

.whatsapp-hint {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-align: center;
}

/* ====================================================
   FOOTER
   ==================================================== */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 40px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.footer-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.footer-center {
  text-align: center;
  flex: 1;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.footer-neu {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.neu-logo-placeholder {
  width: 28px;
  height: 28px;
  background: rgba(0, 229, 200, 0.1);
  border: 1px solid var(--border-accent);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.6rem;
  font-weight: 800;
  color: var(--cyan);
  font-family: 'JetBrains Mono', monospace;
}

.footer-neu span {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition);
}

.footer-links a:hover { color: var(--cyan); }

/* ====================================================
   ANIMATIONS - REVEAL ON SCROLL
   ==================================================== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ====================================================
   RESPONSIVE
   ==================================================== */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr 1fr;
    gap: 48px;
  }

  .why-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
    padding: calc(var(--nav-h) + 40px) 24px 60px;
  }

  .hero-badge {
    display: inline-flex;
    margin-left: auto;
    margin-right: auto;
  }

  .hero-subtitle { margin-left: auto; margin-right: auto; }

  .hero-actions { justify-content: center; }

  .hero-stats { justify-content: center; }

  .hero-visual { display: none; }

  .scroll-indicator { display: none; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .about-photo-wrap { justify-content: center; }

  .about-tags { justify-content: center; }

  .services-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .why-grid { grid-template-columns: 1fr 1fr; }

  .contact-box {
    grid-template-columns: 1fr;
    padding: 36px 28px;
    text-align: center;
  }

  .contact-item { justify-content: center; }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-links { justify-content: center; }

  /* Mobile Nav */
  .hamburger { display: flex; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(8, 11, 16, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px 24px 28px;
    border-bottom: 1px solid var(--border);
    gap: 4px;
    transform: scaleY(0);
    transform-origin: top;
    transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
  }

  .nav-links.open {
    transform: scaleY(1);
  }

  .nav-link { width: 100%; text-align: center; padding: 12px 14px; }

  .cta-nav { margin-top: 8px; text-align: center; }
}

@media (max-width: 480px) {
  .section { padding: 72px 0; }
  .hero-title { font-size: 2rem; }
  .why-grid { grid-template-columns: 1fr; }
  .contact-box { padding: 26px 20px; }
  .btn-whatsapp { font-size: 0.9rem; padding: 14px 22px; }
}