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

body {
  --bg: #f5f7fa;
  --section-bg: #ffffff;
  --card-bg: #ffffff;
  --text: #0f172a;
  --muted-text: #334155;
  --border: #e2e8f0;
  --accent: #319c00;
  --shadow: rgba(0,0,0,0.08);

  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  background-color: var(--bg);
  color: var(--text);
}

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

/* ========================= DARK MODE ========================= */
#theme-toggle:checked ~ header,
#theme-toggle:checked ~ section,
#theme-toggle:checked ~ footer {
  --bg: #020617;
  --section-bg: #020617;
  --card-bg: #020617;
  --text: #f8fafc;
  --muted-text: #cbd5f5;
  --border: #1e293b;
  --shadow: rgba(0,0,0,0.6);
}

/* ========================= CONTAINERS ========================= */
.container {
  width: 90%;
  max-width: 1200px;
  margin: auto;
}

.section {
  padding: 80px 0;
  background-color: var(--section-bg);
  color: var(--text);
}

.section-title {
  font-size: 2.2rem;
  text-align: center;
  margin-bottom: 20px;
}

.section-subtitle {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 50px;
  color: var(--muted-text);
}

/* ========================= HEADER ========================= */
.site-header {
  background-color: #020617;
  padding: 20px 0;
  color: #f8fafc;
}

.header-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-logo {
  height: 40px;
  width: auto;
  border-radius: 1rem;
}

.brand-name {
  font-size: 1.4rem;
  font-weight: bold;
}

.brand-name span {
  color: var(--accent);
}

.main-nav a {
  margin-left: 20px;
  font-weight: 500;
}

/* ========================= HERO ========================= */
.hero {
  background: linear-gradient(135deg, #020617, #0f172a);
  color: #f8fafc;
  padding: 120px 0;
  text-align: center;
}

.hero-content h1 {
  font-size: 2.6rem;
  margin-bottom: 20px;
}

.hero-content p {
  max-width: 700px;
  margin: 0 auto 30px;
  color: #e5e7eb;
}

/* ========================= BUTTONS ========================= */
.btn-primary {
  display: inline-block;
  background-color: var(--accent);
  color: #020617;
  padding: 14px 30px;
  border-radius: 6px;
  font-weight: bold;
}

/* ========================= SERVICES ========================= */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 30px;
}

.service-card {
  background-color: var(--card-bg);
  padding: 30px;
  border-radius: 16px;
  box-shadow: 0 14px 30px var(--shadow);
  border: 1px solid var(--border);
}

.service-card h3 {
  margin-bottom: 10px;
  color: var(--text);
}

.service-card p {
  color: var(--muted-text);
}

/* ========================= PRICING CARDS ========================= */
#pricing > .container > *:not(h2):not(p) {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 30px;
}

#pricing > .container > * > * {
  background-color: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  box-shadow: 0 16px 34px var(--shadow);
}

#pricing h3,
#pricing h4 {
  margin-bottom: 10px;
  color: var(--text);
}

#pricing strong {
  color: var(--accent);
}

#pricing ul {
  margin-left: 20px;
  margin-top: 10px;
}

#pricing li {
  margin-bottom: 6px;
  color: var(--muted-text);
}

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

/* ========================= FOOTER ========================= */
.footer {
  background-color: #020617;
  color: #cbd5f5;
  text-align: center;
  padding: 30px 0;
}

/* ========================= WHATSAPP FLOAT ========================= */
.whatsapp-float {
  position: fixed;
  left: 20px;
  bottom: 20px;
  width: 60px;
  height: 60px;
  z-index: 1000;
}

.whatsapp-float img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  border-radius: 50%;
}

/* ========================= RESPONSIVE ========================= */
@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.1rem;
  }

  .main-nav a {
    margin-left: 12px;
  }

  .section {
    padding: 60px 20px;
  }
}