/* ===== DESIGN TOKENS ===== */
:root {
  --bg-base: #0a0e12;
  --bg-surface: #0f1419;
  --bg-elevated: #151c24;
  --bg-card: #141c25;
  --bg-card-hover: #1b2536;

  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.16);

  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #546580;

  --accent: #0C7569;
  --accent-light: #10a894;
  --accent-dim: rgba(12,117,105,0.22);
  --accent-glow: rgba(12,117,105,0.15);
  --accent-warm: #14b8a6;

  --warm: #f59e0b;
  --warm-dim: rgba(245,158,11,0.15);

  --success: #22c55e;
  --warning: #f59e0b;
  --error: #ef4444;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;

  --font-sans: 'Inter', 'DM Sans', system-ui, sans-serif;
  --font-display: 'DM Sans', 'Inter', system-ui, sans-serif;

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

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

/* ===== UTILITIES ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

/* ===== REVEAL ANIMATION ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.65s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-md);
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.01em;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent);
  color: #080c10;
  font-weight: 600;
}
.btn-primary:hover {
  background: var(--accent-warm);
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(20,184,166,0.3);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border-hover);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
}

.btn-ghost {
  background: rgba(255,255,255,0.05);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--border-hover);
}

.btn-full { width: 100%; justify-content: center; }

.form-submit-row {
  display: flex;
  align-items: center;
  gap: 12px;
}
.form-submit-row .btn.btn-primary {
  flex: 1;
  justify-content: center;
}

.btn-whatsapp {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: #0C7569;
  color: #fff;
  flex-shrink: 0;
  transition: var(--transition);
}
.btn-whatsapp:hover {
  background: #0a6358;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(12,117,105,0.35);
}

/* ===== NAV ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  transition: background var(--transition), border-color var(--transition);
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(8, 12, 16, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  height: 68px;
  gap: 32px;
}

.nav-logo {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}
.logo-ra { color: var(--accent); }
.logo-logic { color: var(--text-primary); }

.nav-links {
  display: flex;
  gap: 32px;
  margin-left: auto;
}
.nav-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }

.nav-cta { margin-left: 8px; padding: 9px 18px; font-size: 0.875rem; }

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 0;
  background: rgba(8,12,16,0.97);
  border-bottom: 1px solid var(--border);
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s cubic-bezier(0.4,0,0.2,1);
}
.mobile-menu.open { max-height: 320px; }
.mobile-menu a {
  padding: 16px 24px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border);
  font-size: 0.95rem;
  transition: color var(--transition);
}
.mobile-menu a:last-child { border-bottom: none; margin: 16px 24px; padding: 12px 20px; }
.mobile-menu a:hover { color: var(--text-primary); }

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 68px;
}

.hero-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.025) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 0%, transparent 70%);
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 50% at 70% 80%, rgba(245,158,11,0.04) 0%, transparent 70%);
  pointer-events: none;
}

.hero-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  animation: orbFloat 8s ease-in-out infinite alternate;
}
.hero-orb-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(12,117,105,0.18) 0%, transparent 70%);
  top: -10%; left: 10%;
  animation-delay: 0s;
}
.hero-orb-2 {
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(245,158,11,0.07) 0%, transparent 70%);
  bottom: 10%; right: 5%;
  animation-delay: -4s;
}

@keyframes orbFloat {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(20px, 30px) scale(1.05); }
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 80px;
  padding-bottom: 80px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border: 1px solid var(--border-hover);
  border-radius: 100px;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  background: rgba(255,255,255,0.03);
}

.badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--warm);
  box-shadow: 0 0 8px var(--warm);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

.hero-headline {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 600;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 24px;
  max-width: 700px;
}

.hero-sub {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat { text-align: left; }
.stat-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1;
}
.stat-suffix {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  letter-spacing: 0.02em;
}
.stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border);
}

.scroll-hint {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
}
.scroll-line {
  display: block;
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, transparent, var(--accent), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse {
  0%, 100% { opacity: 0.3; transform: scaleY(1); }
  50% { opacity: 1; transform: scaleY(0.6); }
}

/* ===== SECTIONS SHARED ===== */
.services, .about, .contact {
  padding: 120px 0;
}
.services { background: var(--bg-surface); }
.about    { background: var(--bg-base); }
.contact  { background: var(--bg-surface); }

.section-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.9rem, 4vw, 3rem);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.section-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 64px;
}

/* ===== SERVICES GRID ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.service-card {
  background: var(--bg-card);
  padding: 40px 36px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: background var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 0% 0%, var(--accent-glow), var(--warm-dim) 40%, transparent 70%);
  opacity: 0;
  transition: opacity var(--transition-slow);
}
.service-card:hover { background: var(--bg-card-hover); }
.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
  transition: var(--transition);
}
.service-card:hover .service-icon {
  background: var(--accent);
  color: #080c10;
  box-shadow: 0 4px 16px rgba(20,184,166,0.3);
}

.service-card h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.service-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}

.service-features {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.service-features li {
  font-size: 0.8rem;
  color: var(--text-muted);
  padding-left: 14px;
  position: relative;
}
.service-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.6;
}

.service-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--accent);
  margin-top: auto;
  transition: gap var(--transition);
}
.service-link:hover { gap: 10px; }
.arrow { transition: transform var(--transition); }
.service-link:hover .arrow { transform: translateX(3px); }

/* ===== ABOUT ===== */
.about-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-card-stack {
  position: relative;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 4/3;
}

.acard {
  position: absolute;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}
.acard-back {
  inset: 0;
  transform: rotate(-5deg) translate(-10px, 10px);
  background: var(--bg-elevated);
  opacity: 0.5;
}
.acard-mid {
  inset: 0;
  transform: rotate(-2deg) translate(-4px, 6px);
  background: var(--bg-card);
  opacity: 0.7;
}
.acard-front {
  inset: 0;
  background: var(--bg-card);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: 0 32px 64px rgba(0,0,0,0.5);
}

.acard-header {
  display: flex;
  gap: 8px;
  align-items: center;
}
.acard-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.acard-dot.green  { background: #22c55e; }
.acard-dot.yellow { background: #f59e0b; }
.acard-dot.red    { background: #ef4444; }

.acard-lines {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.acard-line {
  display: block;
  height: 8px;
  border-radius: 4px;
  background: var(--bg-elevated);
}
.acard-line.accent { background: var(--accent-warm); opacity: 0.7; }
.acard-line.accent-dim { background: var(--warm-dim); }
.acard-line.w-40 { width: 40%; }
.acard-line.w-50 { width: 50%; }
.acard-line.w-55 { width: 55%; }
.acard-line.w-60 { width: 60%; }
.acard-line.w-70 { width: 70%; }
.acard-line.w-75 { width: 75%; }
.acard-line.w-80 { width: 80%; }
.acard-line.w-90 { width: 90%; }
.acard-spacer { height: 4px; }

.about-badge-float {
  position: absolute;
  bottom: -16px; right: -16px;
  background: var(--bg-card);
  border: 1px solid var(--border-hover);
  border-radius: 100px;
  padding: 10px 18px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--warm);
  box-shadow: 0 8px 24px rgba(0,0,0,0.4);
  animation: floatBadge 4s ease-in-out infinite;
}
@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

.about-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 16px;
}

.about-pillars {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-top: 32px;
}
.pillar {
  display: flex;
  align-items: center;
  gap: 16px;
}
.pillar-icon {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: var(--accent-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.pillar strong {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}
.pillar span {
  display: block;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== CONTACT ===== */
.contact-inner {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.contact-form {
  text-align: left;
  margin-top: 48px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.form-group label {
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
}
.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text-primary);
  outline: none;
  transition: border-color var(--transition), box-shadow var(--transition);
  resize: none;
  appearance: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group select { cursor: pointer; }
.form-group select option { background: var(--bg-elevated); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-success {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 18px;
  background: rgba(34,197,94,0.08);
  border: 1px solid rgba(34,197,94,0.2);
  border-radius: var(--radius-md);
  color: var(--success);
  font-size: 0.9rem;
}

/* ===== FOOTER ===== */
.footer {
  background: var(--bg-base);
  border-top: 1px solid var(--border);
  padding: 48px 0;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}
.footer-brand p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
}
.footer-logo {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}
.footer-links {
  display: flex;
  gap: 28px;
}
.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--text-primary); }
.footer-copy {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .about-inner {
    grid-template-columns: 1fr;
    gap: 64px;
  }
  .about-visual {
    max-width: 420px;
    margin: 0 auto;
  }
}

@media (max-width: 768px) {
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: flex; }

  .hero-content { padding-top: 40px; }
  .hero-headline { font-size: clamp(2rem, 9vw, 3rem); }
  .hero-stats { gap: 20px; }
  .stat-num { font-size: 1.6rem; }

  .services, .about, .contact { padding: 80px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card { padding: 32px 24px; }

  .form-row { grid-template-columns: 1fr; }
  .form-submit-row .btn.btn-primary { font-size: 0.9rem; padding: 12px 16px; }

  .footer-inner { flex-direction: column; align-items: flex-start; }
  .footer-links { order: -1; }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-stats { flex-direction: column; align-items: flex-start; gap: 16px; }
  .stat-divider { width: 40px; height: 1px; }
}