/* ==========================================================================
   SAINO HOUSE — BASE STYLES
   Reset, Typography, Accessibility, Motion Defaults
   ========================================================================== */

/* Modern CSS Reset */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -moz-text-size-adjust: 100%;
  text-size-adjust: 100%;
  background-color: var(--color-ivory);
  color: var(--color-charcoal);
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--color-charcoal);
  background-color: var(--color-ivory);
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* Skip to Content for Accessibility */
.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-md);
  background-color: var(--color-charcoal);
  color: var(--color-ivory);
  padding: var(--space-sm) var(--space-md);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  z-index: 9999;
  border-radius: var(--radius-xs);
  transition: top var(--duration-fast) var(--ease-editorial);
}

.skip-link:focus {
  top: var(--space-md);
  outline: 2px solid var(--color-brass);
  outline-offset: 2px;
}

/* Accessible Focus States */
:focus {
  outline: none;
}

:focus-visible {
  outline: 2px solid var(--color-charcoal);
  outline-offset: 3px;
}

/* Selection */
::selection {
  background-color: var(--color-sand);
  color: var(--color-charcoal);
}

/* Typography Base */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.15;
  letter-spacing: var(--tracking-tight);
  color: var(--color-charcoal);
}

h1 {
  font-size: var(--text-4xl);
}

h2 {
  font-size: var(--text-3xl);
}

h3 {
  font-size: var(--text-2xl);
}

h4 {
  font-size: var(--text-xl);
}

p {
  color: var(--color-charcoal-muted);
  font-weight: 350;
  max-width: 65ch;
}

p.lead {
  font-size: var(--text-lg);
  line-height: 1.6;
  color: var(--color-charcoal);
  font-family: var(--font-serif);
}

small, .text-caption {
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
  color: var(--color-charcoal-soft);
}

/* Links */
a {
  color: inherit;
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-editorial),
              border-color var(--duration-fast) var(--ease-editorial),
              opacity var(--duration-fast) var(--ease-editorial);
}

/* Images & Media */
img, picture, video, canvas, svg {
  display: block;
  max-width: 100%;
  height: auto;
}

figure {
  margin: 0;
}

figcaption {
  margin-top: var(--space-xs);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wide);
  color: var(--color-charcoal-soft);
}

/* Lists & Tables */
ul, ol {
  list-style: none;
}

table {
  border-collapse: collapse;
  width: 100%;
}

/* Buttons */
button {
  font: inherit;
  background: none;
  border: none;
  cursor: pointer;
  color: inherit;
}

/* Forms */
input, select, textarea {
  font: inherit;
  color: inherit;
}

/* Utility Screen Reader Class */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* Respect Reduced Motion (10-ACCESSIBILITY.md) */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }
}