/* === BASE — Reset, tipografía, utilidades === */

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
  overflow-x: hidden;
}

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

img, video, svg {
  display: block;
  max-width: 100%;
}

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

ul, ol {
  list-style: none;
}

button {
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  font-size: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

/* === TYPOGRAPHY === */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.2;
  letter-spacing: 0;
}

h1 { font-size: var(--text-4xl); font-weight: 700; }
h2 { font-size: var(--text-2xl); font-weight: 700; }
h3 { font-size: var(--text-xl);  font-weight: 600; }
h4 { font-size: var(--text-lg);  font-weight: 600; }

p { line-height: 1.7; }

strong { font-weight: 700; }

/* === UTILITIES === */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.container-narrow {
  width: 100%;
  max-width: 760px;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  border: 0;
}

.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-right   { text-align: right; }

.text-white   { color: #fff; }
.text-primary { color: var(--color-primary); }
.text-green   { color: var(--color-green); }
.text-orange  { color: var(--color-orange); }
.text-light   { color: var(--color-text-light); }
.text-mid     { color: var(--color-text-mid); }

.font-display { font-family: var(--font-display); }
.font-body    { font-family: var(--font-body); }

.fw-400 { font-weight: 400; }
.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }
.fw-800 { font-weight: 800; }

/* Gradient text helper */
.gradient-text {
  background: linear-gradient(135deg, #A5B4FC, #818CF8);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-green {
  background: linear-gradient(135deg, #34D399, #10B981);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* Section label style */
.section-label {
  display: inline-block;
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-4);
}

.section-label-light {
  color: var(--color-primary-light);
}

/* Divider */
.divider {
  height: 3px;
  border-radius: var(--radius-full);
  margin: var(--space-4) 0;
}

.divider-primary { background: var(--color-primary); }
.divider-green   { background: var(--color-green); }
.divider-red     { background: var(--color-red); }

/* Scroll reveal classes */
.reveal, .reveal-left, .reveal-right, .reveal-scale {
  opacity: 0;
  transition: opacity 0.6s var(--ease-out), transform 0.6s var(--ease-out);
}

.reveal         { transform: translateY(32px); }
.reveal-left    { transform: translateX(-32px); }
.reveal-right   { transform: translateX(32px); }
.reveal-scale   { transform: scale(0.92); }

.revealed {
  opacity: 1;
  transform: none;
}

/* Stagger delays */
.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* Reduce motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .reveal, .reveal-left, .reveal-right, .reveal-scale {
    opacity: 1;
    transform: none;
  }
}