/* Google Fonts Import */
@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700&family=Inter:ital,wght@0,300;0,400;0,500;0,700;1,400&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&display=swap');

:root {
  /* Color Palette */
  --color-bg: #ffffff;
  --color-primary-base: #1b1e22;
  --color-muted-text: #4a525a;
  --color-accent: #8b4513;
  --color-border: #e2e4e6;

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: 'Playfair Display', Georgia, serif;
  --font-heading: 'Cinzel', serif;

  /* Fluid Font Scales (Mobile Min -> Desktop Max) */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-basic: clamp(0.8125rem, 0.75rem + 0.3vw, 0.9375rem);
  --text-base: clamp(0.95rem, 0.9rem + 0.35vw, 1.0625rem);
  --text-3xl: clamp(1.45rem, 1.1rem + 1.75vw, 2.35rem);
  --text-5xl: clamp(2rem, 1.4rem + 3vw, 3.75rem);

  /* Fluid Spacing Scale */
  --space-xs: clamp(0.35rem, 0.3rem + 0.2vw, 0.5rem);
  --space-sm: clamp(0.5rem, 0.45rem + 0.3vw, 0.75rem);
  --space-md: clamp(0.875rem, 0.75rem + 0.5vw, 1.25rem);
  --space-lg: clamp(1.25rem, 1rem + 1vw, 2rem);
  --space-xl: clamp(1.75rem, 1.3rem + 1.8vw, 2.75rem);
  --space-2xl: clamp(2.5rem, 1.8rem + 3vw, 4.5rem);

  /* Borders & Details */
  --border-subtle: 1px solid var(--color-border);
}

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

html {
  font-size: 100%;
  -webkit-text-size-adjust: 100%;
}

body {
  /* dvh resolves mobile browser URL bar jumpiness */
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  margin: 0;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: var(--color-bg);
  color: var(--color-muted-text);
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: "";
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1; /* Keeps the image behind all page content */
  
  background-image: url('Urban_Housing_Blueprint.jpg');
  background-position: center;
  background-repeat: no-repeat;
  background-size: cover; /* Use 'contain' if you don't want the edges cropped */
  
  opacity: 0.12; /* Adjust transparency (0.05 to 0.20 works best for readability) */
  pointer-events: none; /* Allows clicks and selections to pass through cleanly */
}

/* Container & Wrappers */
.container {
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: max(var(--space-md), env(safe-area-inset-right));
  padding-left: max(var(--space-md), env(safe-area-inset-left));
}

.statement-wrapper {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-xl) var(--space-md);
  width: 100%;
}

.statement-content {
  width: 100%;
  max-width: 840px;
  /* Left-align by default on phones for natural line-tracking */
  text-align: left;
}

.content-section {
  padding: 3rem 0;
}

.content-section + .content-section {
  margin-top: 3.5rem;
  padding-top: 3.5rem;
  border-top: 1px solid #e0e0e0;
}

.why-block + .why-block {
  margin-top: 2rem;
}

/* Brand Identity */
.brand-mark {
  font-family: var(--font-serif);
  font-size: var(--text-5xl);
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-primary-base);
  margin-bottom: var(--space-lg);
  line-height: 1.1;
  overflow-wrap: break-word;
  word-break: break-word;
}

.tagline-badge {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: var(--text-basic);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-accent);
  margin-bottom: var(--space-md);
  line-height: 1.4;
}

/* Typography & Flow */
.philosophy-statement,
.content-section h2 {
  font-family: var(--font-serif);
  font-size: var(--text-3xl);
  line-height: 1.3;
  color: var(--color-primary-base);
  margin-bottom: var(--space-lg);
  text-wrap: balance;
}

.philosophy-body {
  font-size: var(--text-base);
  color: var(--color-muted-text);
  line-height: 1.75;
  max-width: 720px;
}

.philosophy-body p {
  margin-bottom: var(--space-md);
  text-wrap: pretty;
}

.philosophy-body p:last-child {
  margin-bottom: 0;
}

.projects-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xs) var(--space-lg);
  padding-left: 1.25rem;
  margin-top: var(--space-sm);
  line-height: 1.8;
}

@media (min-width: 640px) {
  .projects-list {
    grid-template-columns: repeat(2, 1fr);
    text-align: left; /* Preserves clean list alignment if parent is centered */
  }
}

strong {
  color: var(--color-primary-base);
  font-weight: 600;
}

/* =========================================
   Navigation & Header
   ========================================= */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: var(--color-bg);
  border-bottom: var(--border-subtle);
  padding-top: env(safe-area-inset-top);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: 1120px;
  margin-inline: auto;
  padding: var(--space-sm) var(--space-md);
}

.nav-brand {
  font-family: var(--font-serif);
  font-weight: 600;
  color: var(--color-primary-base);
  text-decoration: none;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

/* Hamburger Toggle Button */
.menu-toggle {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 110;
}

.menu-toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 4px;
}

.menu-toggle .bar {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-primary-base);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* Animated "X" State */
.menu-toggle[aria-expanded="true"] .bar:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .bar:nth-child(2) {
  opacity: 0;
}

.menu-toggle[aria-expanded="true"] .bar:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* Mobile Off-Canvas Drawer */
.nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(75vw, 320px);
  height: 100dvh;
  background-color: var(--color-bg);
  box-shadow: -6px 0 24px rgba(0, 0, 0, 0.08);
  padding: calc(var(--space-2xl) + env(safe-area-inset-top)) var(--space-lg) var(--space-lg);
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  visibility: hidden;
}

.nav-drawer.is-open {
  transform: translateX(0);
  visibility: visible;
}

.nav-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.nav-link {
  font-family: var(--font-sans);
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--color-primary-base);
  text-decoration: none;
  transition: color 0.15s ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: var(--color-accent);
}

/* Disable body scroll when drawer is open */
body.menu-open {
  overflow: hidden;
}

/* =========================================
   Desktop Adaptation (Min-width: 768px)
   ========================================= */

@media (min-width: 768px) {
  .menu-toggle {
    display: none; /* Hide hamburger icon on wider viewports */
  }

  .nav-drawer {
    position: static;
    width: auto;
    height: auto;
    box-shadow: none;
    padding: 0;
    transform: none;
    visibility: visible;
    background: transparent;
  }

  .nav-list {
    flex-direction: row;
    align-items: center;
    gap: var(--space-lg);
  }

  .nav-link {
    font-size: var(--text-basic);
  }
}

/* Footer */
.simple-footer {
  border-top: var(--border-subtle);
  padding-block: var(--space-md);
  padding-bottom: max(var(--space-md), env(safe-area-inset-bottom));
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-muted-text);
}

/* Tablet & Desktop Layout Overrides */
@media (min-width: 640px) {
  .statement-wrapper {
    padding: var(--space-2xl) var(--space-lg);
  }

  .statement-content {
    text-align: center;
  }

  .philosophy-body {
    margin-inline: auto;
  }
}

/* Accessibility: High Contrast & Motion */
@media (prefers-reduced-motion: reduce) {
  * {
    transition: none !important;
    animation: none !important;
  }
}

/* Print */
@media print {
  body {
    background: transparent;
    color: #000;
    min-height: auto;
  }
}