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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-bg-dark);
  overflow-x: hidden;
}

.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  line-height: 1.2;
  color: var(--color-text-bright);
}

h2 {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
}

h3 {
  font-size: 1.25rem;
  font-weight: 600;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

img { max-width: 100%; display: block; }
ul { list-style: none; }

.section {
  padding: var(--section-padding);
  position: relative;
}

.section-title {
  text-align: center;
  margin-bottom: 16px;
}

.section-desc {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 60px;
  font-size: 1.05rem;
  color: var(--color-text-muted);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-primary);
  color: var(--color-bg-dark);
}

.btn-primary:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 1.5px solid var(--color-primary);
}

.btn-outline:hover {
  background: rgba(0,200,255,0.1);
  box-shadow: var(--shadow-glow);
}

.btn-whatsapp {
  background: #25D366;
  color: #fff;
}

.btn-whatsapp:hover {
  background: #1EB954;
  transform: translateY(-2px);
  box-shadow: 0 0 30px rgba(37,211,102,0.3);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1.05rem;
}

/* Glow line separator */
.glow-line {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), var(--color-accent), var(--color-accent-magenta), transparent);
  border: none;
  margin: 0;
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* Screen-reader-only — visible to Google & assistive tech, hidden visually */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}