/**
 * Ambiant Housing & Construction Pvt. Ltd.
 * Base CSS: Reset, Typography, Linework & Utility Foundation
 */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600;700&family=Outfit:wght@400;500;600;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800&display=swap');

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  background-color: var(--bg-primary);
  color: var(--text-primary);
}

body {
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
  color: var(--text-secondary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  position: relative;
}

/* Background Subtle Architectural Blueprint Grid */
body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(to right, rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* Selection Highlight */
::selection {
  background-color: var(--accent-gold);
  color: var(--bg-primary);
}

/* Typography Defaults */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--text-primary);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 {
  font-size: var(--text-5xl);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--text-4xl);
}

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

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

p {
  margin-bottom: var(--space-4);
  color: var(--text-muted);
  font-size: var(--text-base);
}

p.lead {
  font-size: var(--text-lg);
  line-height: 1.7;
  color: var(--concrete-light);
}

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

a:hover {
  color: var(--accent-gold-light);
}

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
  background: transparent;
  border: none;
}

button {
  cursor: pointer;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--accent-gold);
  outline-offset: 3px;
}

/* Screen Reader Only Utility */
.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;
}

/* Monospace & Technical Markers */
.font-mono {
  font-family: var(--font-mono);
}

.text-gold {
  color: var(--accent-gold);
}

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

.text-white {
  color: #FFFFFF;
}

/* Section Header Typography */
.section-header {
  margin-bottom: var(--space-12);
  position: relative;
}

.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: var(--space-3);
}

.section-eyebrow::before {
  content: '';
  display: inline-block;
  width: 16px;
  height: 2px;
  background-color: var(--accent-gold);
}

.section-title {
  font-size: var(--text-4xl);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: var(--space-4);
  line-height: 1.15;
}

.section-lead {
  font-size: var(--text-lg);
  color: var(--text-muted);
  max-width: 680px;
  line-height: 1.6;
}

/* Placeholder Notices & Tags */
.placeholder-banner {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: rgba(194, 162, 111, 0.08);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xs);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--accent-gold);
  margin-bottom: var(--space-6);
}

.placeholder-badge {
  display: inline-block;
  padding: 2px 8px;
  background: rgba(194, 162, 111, 0.12);
  border: 1px solid rgba(194, 162, 111, 0.3);
  color: var(--accent-gold);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-radius: var(--radius-xs);
}

/* Architectural Framing Divider */
.arch-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--border-medium) 30%, var(--accent-gold-border) 50%, var(--border-medium) 70%, transparent 100%);
  margin: var(--space-16) 0;
  position: relative;
}

.arch-divider::after {
  content: '◆';
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
  color: var(--accent-gold);
  font-size: 10px;
  background: var(--bg-primary);
  padding: 0 8px;
}

/* Respect Reduced Motion */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}