/* ═══════════════════════════════════════════════
   OÍR MÁS — Base Styles
   Typography, body, selection, scrollbar, focus
   ═══════════════════════════════════════════════ */

/* ─── Body ─── */
body {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-text);
  background-color: var(--color-bg);
  transition: background-color var(--transition-slow), color var(--transition-slow);
}

/* ─── Typography Scale ─── */
h1, .h1 {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 5vw, 3.75rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  color: var(--color-text);
}

h2, .h2 {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3.5vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  color: var(--color-text);
}

h3, .h3 {
  font-family: var(--font-heading);
  font-size: clamp(1.35rem, 2.5vw, 1.85rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.25;
  color: var(--color-text);
}

h4, .h4 {
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.3;
  color: var(--color-text);
}

h5, .h5 {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 600;
  line-height: 1.35;
}

h6, .h6 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  line-height: 1.4;
}

p {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-text-light);
}

.lead {
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
  line-height: 1.7;
  color: var(--color-text-light);
  font-weight: 400;
}

small, .text-sm {
  font-size: 0.875rem;
  line-height: 1.5;
}

.text-xs {
  font-size: 0.75rem;
  line-height: 1.4;
  letter-spacing: 0.02em;
}

.text-lg {
  font-size: 1.125rem;
}

.text-xl {
  font-size: 1.25rem;
}

strong, b {
  font-weight: 600;
}

/* ─── Links ─── */
a {
  color: var(--color-primary);
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-dark);
}

/* ─── Selection ─── */
::selection {
  background-color: rgba(0, 153, 204, 0.2);
  color: var(--color-primary-dark);
}

::-moz-selection {
  background-color: rgba(0, 153, 204, 0.2);
  color: var(--color-primary-dark);
}

/* ─── Focus Visible (WCAG 2.1 AA) ─── */
:focus-visible {
  outline: 3px solid var(--color-primary-dark);
  outline-offset: 4px;
  border-radius: var(--radius-sm);
}

:focus:not(:focus-visible) {
  outline: none;
}

/* ─── Custom Scrollbar ─── */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--color-primary-light), var(--color-primary));
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-primary-dark);
  border: 2px solid transparent;
  background-clip: padding-box;
}

/* Firefox scrollbar */
html {
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) transparent;
}

/* ─── Utility Classes ─── */
.container {
  width: 100%;
  max-width: 1200px;
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.container-wide {
  width: 100%;
  max-width: 1400px;
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

.container-narrow {
  width: 100%;
  max-width: 900px;
  margin-inline: auto;
  padding-inline: var(--space-lg);
}

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

.text-gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.text-gradient-accent {
  background: linear-gradient(135deg, #33BBEE 0%, #00D4FF 50%, #0099CC 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.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;
}

/* ─── Scroll Progress Bar ─── */
#scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: var(--gradient-primary);
  z-index: var(--z-toast);
  transition: width 60ms linear;
  border-radius: 0 var(--radius-full) var(--radius-full) 0;
  box-shadow: 0 0 10px rgba(0, 212, 255, 0.5);
}

/* ─── Animations — Reveal on Scroll ─── */
[data-animate] {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity var(--transition-smooth), transform var(--transition-smooth);
}

[data-animate="fade-up"].visible {
  opacity: 1;
  transform: translateY(0);
}

[data-animate="fade-in"].visible {
  opacity: 1;
  transform: translateY(0);
}

[data-animate="slide-left"] {
  opacity: 0;
  transform: translateX(-40px);
}

[data-animate="slide-left"].visible {
  opacity: 1;
  transform: translateX(0);
}

[data-animate="slide-right"] {
  opacity: 0;
  transform: translateX(40px);
}

[data-animate="slide-right"].visible {
  opacity: 1;
  transform: translateX(0);
}

[data-animate="scale-up"] {
  opacity: 0;
  transform: scale(0.92);
}

[data-animate="scale-up"].visible {
  opacity: 1;
  transform: scale(1);
}

[data-animate="zoom-in"] {
  opacity: 0;
  transform: scale(0.85);
}

[data-animate="zoom-in"].visible {
  opacity: 1;
  transform: scale(1);
}