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

:root {
  --bg: #FAFAF8;
  --text: #1A1A1A;
  --muted: #5A5A5A;
  --accent: #09E9C3;
  --border: #E8E8E4;
  --glow: rgba(9, 233, 195, 0);
  --page-gradient: linear-gradient(180deg, #FAFAF8 0%, #F3F3EF 50%, #EDEDEA 100%);
}

[data-theme="dark"] {
  --bg: #0A0A0A;
  --text: #ECECEC;
  --muted: #8A8A8A;
  --accent: #09E9C3;
  --border: #1E1E1E;
  --glow: rgba(9, 233, 195, 0.3);
  --page-gradient: linear-gradient(180deg, #0A0A0A 0%, #0D1210 40%, #0A0A0A 100%);
}

html {
  font-family: 'Inter', sans-serif;
  color: var(--text);
  transition: background-color 0.3s ease, color 0.3s ease;
}

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--page-gradient);
}

/* Language toggle via CSS */
[data-lang="es"] [data-lang="en"],
[data-lang="en"] [data-lang="es"] {
  display: none;
}

/* Logo theme swap */
[data-theme="light"] .logo-dark,
[data-theme="dark"] .logo-light {
  display: none;
}

/* Theme toggle icon swap */
[data-theme="light"] .icon-moon,
[data-theme="dark"] .icon-sun {
  display: none;
}

/* Nav */
.nav {
  padding: 28px 32px;
}

.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
}

.logo-icon {
  height: 36px;
  width: auto;
}

.logo-wordmark {
  height: 22px;
  width: auto;
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.toggle {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  border-radius: 8px;
  padding: 8px 12px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.2s ease, background-color 0.2s ease;
}

.toggle:hover {
  color: var(--text);
  background: rgba(128, 128, 128, 0.1);
}

.theme-toggle {
  padding: 8px;
}

/* Hero */
.hero {
  max-width: 1080px;
  margin: 0 auto;
  padding: 100px 32px 60px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
}



.hero-accent-line {
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin-bottom: 24px;
  box-shadow: 0 0 20px var(--glow);
}

.hero h1 {
  font-size: 60px;
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
  text-shadow: 0 0 40px var(--glow);
}

.hero-sub {
  font-size: 18px;
  line-height: 1.7;
  color: var(--muted);
  max-width: 540px;
  font-weight: 300;
}

/* Services */
.services {
  max-width: 1080px;
  margin: 0 auto;
  padding: 20px 32px 80px;
}

.service-item {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 40px 0;
}

.service-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.service-icon {
  flex-shrink: 0;
  color: var(--accent);
}

[data-theme="dark"] .service-icon {
  filter: drop-shadow(0 0 12px rgba(9, 233, 195, 0.4));
}

.service-title {
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
}

.service-desc {
  font-size: 17px;
  font-weight: 300;
  color: var(--muted);
  max-width: 400px;
  line-height: 1.7;
}

.service-item + .service-item {
  border-top: 1px solid var(--border);
}

.service-title em {
  font-style: normal;
  color: var(--accent);
}

[data-theme="dark"] .service-title em {
  text-shadow: 0 0 30px rgba(9, 233, 195, 0.3);
}

/* Footer */
.footer {
  margin-top: auto;
  padding: 40px 32px;
  text-align: center;
  color: var(--muted);
  font-size: 13px;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.footer-email {
  display: block;
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  font-weight: 400;
  margin-bottom: 8px;
  transition: color 0.2s ease;
}

.footer-email:hover {
  color: var(--accent);
}

/* Mobile */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 38px;
  }

  .hero-sub {
    font-size: 16px;
  }

  .hero {
    padding: 64px 20px 40px;
  }

  .services {
    padding: 60px 20px;
  }

  .service-item {
    grid-template-columns: 1fr;
    gap: 16px;
    padding: 32px 0;
  }

  .service-title {
    font-size: 28px;
  }

  .nav {
    padding: 20px 20px;
  }

  .hero {
    padding: 0 20px;
  }
}