/* NYUMBANI REAL ESTATE — MODERN LUXURY CSS
   Fully annotated for learning and maintainability */

/* Import Modern Fonts from Google Fonts
   Inter: clean sans-serif for body & headings
   Fira Code: monospace for inline code samples */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Fira+Code:wght@400;500&display=swap');

/* Reset & Base Styles */
/* Removes default browser margin/padding and ensures consistent box-sizing */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box; /* makes width/padding/border calculations easier */
}

/* Base HTML styling */
html {
  scroll-behavior: smooth; /* smooth scrolling for anchor links */
  font-family: 'Inter', 'Helvetica Neue', Helvetica, Arial, sans-serif; /* modern fonts */
  background: linear-gradient(145deg, #f3f4f6, #e2e8f0); /* subtle gradient background */
  color: #1a1a1a; /* default text color */
}

/* Body styling */
body {
  line-height: 1.65; /* more readable line height */
  font-size: 1rem; /* default font size */
  padding: 0 2rem; /* horizontal padding for breathing room */
  background-attachment: fixed; /* keeps gradient fixed on scroll */
}

/* Links styling */
a {
  color: #6c63ff; /* default link color */
  text-decoration: none; /* remove underline */
  position: relative; /* required for underline animation pseudo-element */
  transition: all 0.3s ease; /* smooth hover/focus effects */
}
/* Underline effect for links */
a::after {
  content: '';
  position: absolute;
  width: 0; /* hidden by default */
  height: 2px;
  bottom: -2px;
  left: 0;
  background: #ff6584; /* accent color */
  transition: width 0.3s;
}
/* Expand underline on hover */
a:hover::after {
  width: 100%;
}
a:hover {
  color: #ff6584; /* link color changes on hover */
  transform: translateY(-1px); /* subtle lift effect */
}

/* Skip link for accessibility (keyboard navigation) */
a[href="#main"] {
  position: absolute; /* hide offscreen by default */
  left: -999px;
  top: -999px;
  background: #6c63ff;
  color: #fff;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  z-index: 1000;
}
/* Bring skip link into view when focused */
a[href="#main"]:focus {
  left: 1rem;
  top: 1rem;
}

/* Header & Navigation */
header {
  display: flex; /* horizontal layout */
  justify-content: space-between; /* space between title and nav */
  align-items: center; /* vertically center elements */
  padding: 1.5rem 2rem;
  border-radius: 16px;
  background: rgba(255,255,255,0.75); /* glass effect */
  box-shadow: 0 20px 40px rgba(0,0,0,0.08); /* soft shadow */
  backdrop-filter: blur(15px); /* blur behind header for frosted glass */
  margin-bottom: 3rem; /* spacing below header */
  transition: all 0.3s ease;
}

header h1 {
  font-size: 2.5rem; /* large main heading */
  font-weight: 700;
  color: #222;
  letter-spacing: 1px;
}

/* Navigation menu */
nav ul {
  display: flex; /* horizontal layout */
  gap: 2rem; /* space between links */
  list-style: none; /* remove bullets */
}

/* Highlight current page link */
nav a[aria-current="page"] {
  font-weight: 700;
  color: #ff6584; /* accent color */
  border-bottom: 3px solid #ff6584; /* visual indicator */
}

/* Main content area */
main {
  max-width: 1000px; /* limits width for readability */
  margin: 0 auto 4rem auto; /* centers content and adds bottom margin */
}

/* Article card */
article {
  background: rgba(255,255,255,0.85); /* semi-transparent white card */
  padding: 3rem 2.5rem;
  border-radius: 24px; /* rounded corners */
  box-shadow: 0 25px 50px rgba(0,0,0,0.1); /* soft shadow */
  backdrop-filter: blur(15px); /* glassmorphism effect */
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
/* Hover lift effect on article card */
article:hover {
  transform: translateY(-5px); /* subtle movement */
  box-shadow: 0 35px 60px rgba(0,0,0,0.15); /* slightly stronger shadow */
}

/* Article headings */
article h2, article h3, article h4 {
  margin-bottom: 1rem; /* spacing below heading */
  color: #222;
  font-weight: 600;
  letter-spacing: 0.5px;
}

/* Sections within articles */
section {
  margin-bottom: 2.5rem; /* spacing between sections */
}

/* Lists styling */
ul, ol {
  padding-left: 1.5rem;
}
ul li::marker, ol li::marker {
  color: #6c63ff; /* colored bullets/numbers */
  font-weight: 700;
}

/* Tables styling */
table {
  width: 100%; /* full width */
  border-collapse: collapse; /* merge borders */
  margin: 1.5rem 0;
  background: transparent;
}
th, td {
  padding: 0.75rem 1rem;
  text-align: left;
  border: 1px solid #ccc; /* table borders */
}
th {
  background: #f5f5f5; /* header row color */
  font-weight: 600;
  color: #222;
}
tbody tr:nth-child(even) {
  background: #fafafa; /* zebra striping */
}
tfoot {
  font-weight: 600;
  background: #f0f0f0;
}

/* Details & Summary (Accordion effect) */
details {
  background: rgba(108, 99, 255, 0.08); /* soft purple background */
  padding: 1.25rem;
  border-radius: 16px;
  margin-bottom: 1rem;
  cursor: pointer;
  transition: background 0.3s ease, transform 0.2s ease;
}
details[open] {
  background: rgba(108, 99, 255, 0.15); /* slightly stronger when open */
  transform: translateY(-2px); /* subtle lift */
}

/* Dialog boxes (in-flow) */
dialog[open] {
  position: static; /* normal flow, not floating */
  transform: none;
  width: 100%; /* full width */
  max-width: none;
  margin-top: 1rem;
  padding: 1rem 1.25rem;
  border-radius: 12px;
  border: 1px solid #ccc;
  background: #fff; /* white background */
  box-shadow: 0 5px 15px rgba(0,0,0,0.08); /* soft shadow */
  resize: none; /* disable resize handle */
  overflow: visible; /* ensure content visible */
}

/* Progress bar styling */
progress {
  width: 100%;
  height: 1.5rem;
  border-radius: 12px;
  overflow: hidden;
}
progress::-webkit-progress-bar {
  background: rgba(0,0,0,0.05); /* bar background */
}
progress::-webkit-progress-value {
  background: linear-gradient(90deg, #6c63ff, #ff6584); /* gradient fill */
}

/* Meter styling */
meter {
  width: 100%;
  height: 1.5rem;
  border-radius: 12px;
}

/* Aside (sidebar or side notes) */
aside {
  background: rgba(108, 99, 255, 0.08);
  padding: 1.5rem;
  border-radius: 16px;
  margin-top: 2.5rem;
  box-shadow: 0 15px 40px rgba(0,0,0,0.05);
}

/* Footer styling */
footer {
  text-align: center;
  padding: 1.5rem 0;
  font-size: 0.95rem;
  color: #555;
  margin-top: 3rem;
}

/* Media elements (images, video, audio) */
img, video, audio {
  max-width: 100%; /* responsive */
  border-radius: 16px;
  margin-top: 1rem;
  box-shadow: 0 15px 50px rgba(0,0,0,0.08);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
img:hover, video:hover {
  transform: scale(1.02); /* subtle zoom effect */
  box-shadow: 0 25px 60px rgba(0,0,0,0.15); /* stronger shadow on hover */
}

/* Inline code and sample elements */
code, kbd, samp {
  background: rgba(108, 99, 255, 0.1);
  padding: 0.25rem 0.5rem;
  border-radius: 8px;
  font-family: 'Fira Code', monospace; /* monospace font for code readability */
}

/* Blockquotes */
blockquote {
  border-left: 5px solid #6c63ff; /* colored accent bar */
  padding-left: 1rem;
  margin: 1rem 0;
  color: #555;
  font-style: italic;
  background: rgba(108, 99, 255, 0.05); /* subtle background highlight */
  border-radius: 12px;
}

/* Time elements styling */
time {
  font-weight: 500;
  color: #6c63ff;
  letter-spacing: 0.5px;
}

/* Global transitions */
* {
  transition: all 0.3s ease; /* smooth hover/focus effects for all elements */
}