@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');
@import 'tokens.css';

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, video { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

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

/* Tipografía */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.section-label {
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: var(--space-3);
}

.section-title {
  font-size: var(--text-3xl);
  font-weight: 700;
  line-height: 1.15;
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.section-description {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
  max-width: 56ch;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75em 1.5em;
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: 600;
  line-height: 1;
  border: 2px solid transparent;
  transition: background-color var(--duration-fast) ease,
              color var(--duration-fast) ease,
              border-color var(--duration-fast) ease,
              transform var(--duration-fast) ease;
  white-space: nowrap;
}

.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background-color: var(--color-accent);
  color: #ffffff !important;
  border-color: var(--color-accent);
}
.btn-primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #ffffff !important;
}

.btn-outline {
  background-color: transparent;
  color: var(--color-text);
  border-color: rgba(255, 255, 255, 0.4);
}
.btn-outline:hover {
  border-color: var(--color-text);
  background-color: rgba(255, 255, 255, 0.06);
}

.btn-whatsapp {
  background-color: #25d366;
  color: #fff;
  border-color: #25d366;
}
.btn-whatsapp:hover {
  background-color: #1ebe5a;
  border-color: #1ebe5a;
}

/* Divisor acento */
.accent-line {
  width: 48px;
  height: 3px;
  background-color: var(--color-accent);
  border-radius: 2px;
  margin-bottom: var(--space-6);
}

/* Screen reader only */
.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;
}

/* Animaciones de entrada */
@media (prefers-reduced-motion: no-preference) {
  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slow) var(--ease-out-expo),
                transform var(--duration-slow) var(--ease-out-expo);
  }
  .fade-in.is-visible {
    opacity: 1;
    transform: translateY(0);
  }
}