/* ===================================
   Editorial Portfolio Styles
   Modern, prose-focused design
   =================================== */

/* CSS Custom Properties */
:root {
  /* Colors - Muted, editorial palette */
  --color-bg: #fafafa;
  --color-surface: #ffffff;
  --color-text: #1a1a1a;
  --color-text-light: #666666;
  --color-text-lighter: #999999;
  --color-accent: #2c5282;
  --color-border: #e5e5e5;
  --color-quote-bg: #f5f5f5;

  /* Case study link hover colors (light mode default) */
  --case-study-link-bg: #f2f2f2;
  --case-study-link-hover-bg: #1a1a1a;
  --case-study-link-hover-text: #fafafa;

  /* Typography */
  --font-sans: "Libre Franklin", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  --font-serif: "Merriweather", Georgia, Cambria, "Times New Roman", Times, serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  /* ===================================
     SPACING SYSTEM

     Scale: Modified modular scale (0.25, 0.5, 1, 1.5, 2, 3, 4)
     Base: 1rem = 18px (set at html { font-size: 18px; })
     Rationale: Provides fine control (xs/sm) and major spacing (2xl/3xl)

     Usage Guidelines:
     - --spacing-xs/sm: Tight spacing, padding within components
     - --spacing-md: Base unit, small gaps
     - --spacing-lg: Content rhythm (between paragraphs)
     - --spacing-xl: Component padding
     - --spacing-2xl: Section spacing (between major blocks)
     - --spacing-3xl: Page margins (top-level sections)

     Semantic Tokens (Preferred over raw spacing values):
     - --spacing-content: Between paragraphs, list items
     - --spacing-section: Between content sections/blocks
     - --spacing-page: Major page sections
     - --spacing-component: Component padding

     Architecture: Parent-Controlled Gap Spacing
     - Use gap property in flex/grid containers
     - Remove default margins from children
     - Control spacing at parent level for consistency
     - Avoid margin-based spacing for child elements
     =================================== */

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;

  /* Semantic Spacing Tokens */
  /* These tokens describe the PURPOSE of spacing, not just the size */
  --spacing-content: var(--spacing-lg);      /* Between paragraphs, list items */
  --spacing-section: var(--spacing-2xl);     /* Between content sections/blocks */
  --spacing-page: var(--spacing-3xl);        /* Between major page sections */
  --spacing-component: var(--spacing-xl);    /* Component padding */

  /* Layout */
  --max-width: clamp(680px, 90vw, 1200px);
  --max-width-wide: clamp(900px, 90vw, 1500px);

  /* Transitions */
  --transition: 150ms ease-in-out;
}

/* Reset & Base */
*, *::before, *::after {
  box-sizing: border-box;
}

* {
  margin: 0;
  padding: 0;
}

html {
  font-size: 18px;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-weight: 400;
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Main Container */
main {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-md);
}

@media (min-width: 768px) {
  main {
    padding: var(--spacing-3xl) var(--spacing-2xl);
  }
}

/* Navbar */
.navbar {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
  position: relative;
}

@media (min-width: 768px) {
  .navbar {
    padding: var(--spacing-xl) var(--spacing-2xl);
  }
}

.navbar-home {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--color-text);
  text-decoration: none;
  transition: color var(--transition);
  z-index: 1;
}

.navbar-home:hover {
  color: var(--color-accent);
}

.navbar-title {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-serif);
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 400;
  color: var(--color-text);
}

.navbar-divider {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: 0;
  width: 100%;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-text);
  margin-top: var(--spacing-2xl);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 500;
  letter-spacing: -0.02em;
  margin-top: 0;
}

h2 {
  font-size: clamp(1.5rem, 4vw, 2rem);
  font-weight: 500;
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 500;
}

h4 {
  font-size: 1.125rem;
}

p {
  margin-bottom: var(--spacing-lg);
  max-width: 70ch;
}

a {
  color: var(--color-accent);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--transition);
}

a:hover {
  color: var(--color-text);
}

strong, b {
  font-weight: 600;
}

em, i {
  font-style: italic;
}

/* Lists */
ul, ol {
  margin-bottom: var(--spacing-lg);
  padding-left: var(--spacing-lg);
}

li {
  margin-bottom: var(--spacing-sm);
}

li > ul,
li > ol {
  margin-bottom: 0;
}

/* Blockquotes */
blockquote {
  margin: var(--spacing-2xl) 0;
  padding: var(--spacing-lg) var(--spacing-xl);
  background-color: var(--color-quote-bg);
  border-left: 3px solid var(--color-accent);
    font-family: var(--font-serif);
    font-size: 24px;
}

blockquote p {
  margin-bottom: 0;
  font-size: 1.125rem;
}

/* Code */
code, kbd, samp {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background-color: var(--color-quote-bg);
  padding: 0.2em 0.4em;
  border-radius: 3px;
}

pre {
  background-color: var(--color-text);
  color: var(--color-bg);
  padding: var(--spacing-lg);
  border-radius: 6px;
  overflow-x: auto;
  margin: var(--spacing-lg) 0;
}

pre code {
  background: none;
  padding: 0;
  color: inherit;
}

/* Horizontal Rule */
hr {
  border: none;
  border-top: 1px solid var(--color-border);
  margin: var(--spacing-3xl) 0;
}

/* Images */
img {
  max-width: 100%;
  height: auto;
  display: block;
}

/* Figure & Figcaption */
figure {
  margin: var(--spacing-2xl) 0;
}

figcaption {
  margin-top: var(--spacing-sm);
  font-size: 0.875rem;
  color: var(--color-text-light);
  font-style: italic;
  line-height: 1.5;
}

/* ===================================
   Case Study Components
   =================================== */

.case-study {
  max-width: var(--max-width);
}

/* Hero Section */
.case-study-hero {
  margin-bottom: var(--spacing-3xl);
}

.case-study-hero img {
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.hero-caption {
  margin-top: var(--spacing-md);
  font-size: 0.875rem;
  color: var(--color-text-light);
  font-style: italic;
  text-align: center;
}

/* Header */
.case-study-header {
  margin-bottom: var(--spacing-2xl);
}

.case-study-header h1 {
  margin-bottom: var(--spacing-md);
}

.tagline {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin-bottom: 0;
}

/* Introduction */
.introduction {
    font-family:var(--font-serif) ;
  font-size: 1.25rem;
  line-height: 1.6;
  color: var(--color-text-light);
  margin-bottom: var(--spacing-3xl);
}

.introduction p {
  margin-bottom: 0;
}

/* Body Content */
.case-study-body {
  margin-top: calc(var(--spacing-section) * 2);  /* Double section spacing for top margin */
  position: relative;
  gap: var(--spacing-section);  /* Spacing between content sections */
  display: flex;
  flex-direction: column;
}

.case-study-body::before {
  content: "";
  position: absolute;
  top: calc(var(--spacing-xl) * -1);
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(to right, var(--color-accent), transparent);
  opacity: 0.3;
}

/* Remove default margins from all children - gap handles spacing */
.case-study-body > p,
.case-study-body > figure,
.case-study-body > blockquote,
.case-study-body > .content-section {
  margin-top: 0;
  margin-bottom: 0;
}

/* StreamField Block Separators */
/* Only add separator between adjacent content-sections */
.content-section + .content-section {
  position: relative;
}

.content-section + .content-section::before {
  content: "";
  position: absolute;
  top: calc(var(--spacing-section) * -0.5);  /* Center separator in gap */
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(to right, var(--color-accent), transparent);
  opacity: 0.3;
}

/* Captioned Image */
.captioned-image {
  /* Spacing handled by parent .case-study-body gap */
}

.captioned-image img {
  width: 100%;
  height: auto;
  border-radius: 6px;
}

.captioned-image figcaption {
  text-align: center;
  padding: var(--spacing-sm) var(--spacing-md);
}

/* Two Column Grid (Legacy) */
.two-column-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
  /* Margin handled by parent .case-study-body gap */
}

@media (min-width: 640px) {
  .two-column-grid {
    grid-template-columns: 1fr 3fr;
    gap: var(--spacing-2xl);
  }
}

.column-left,
.column-right {
  min-width: 0;
}

/* Content Section (New pattern replacing two-column) */
.content-section {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 640px) {
  .content-section {
    grid-template-columns: 1fr 3fr;
    gap: var(--spacing-2xl);
  }
}

.content-section-sidebar,
.content-section-body {
  min-width: 0;
}

.content-section-sidebar h2 {
  margin-top: 0;
  font-size: 36px;
  font-weight: 300;
  color: var(--color-text);
  margin-bottom: var(--spacing-md);
  line-height: 1.3;
}

.content-section-sidebar .tools-used {
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.5;
  margin: 0;
  padding: var(--spacing-sm) var(--spacing-md);
  background: var(--color-quote-bg);
  border-radius: 4px;
  border-left: 3px solid var(--color-accent);
}

.content-section-body {
  /*
   * Parent-Controlled Gap Spacing Pattern
   *
   * This container uses flexbox gap for all child spacing.
   * All margins are reset to 0 (see rule below).
   *
   * Benefits:
   * - Single source of truth for spacing
   * - No margin collapse issues
   * - Easy to adjust (change gap value)
   * - Consistent spacing across all children
   */
  display: flex;
  flex-direction: column;
  gap: var(--spacing-content);  /* Spacing between paragraphs/elements */
}

/* Remove default margins from children - gap handles spacing */
.content-section-body > * {
  margin-top: 0;
  margin-bottom: 0;
}

/* ===================================
   Case Studies List (Home Page)
   =================================== */

.case-studies-list {
  margin-top: var(--spacing-3xl);
}

.case-studies-list > h2 {
  margin-bottom: var(--spacing-2xl);
}

.case-study-link {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-3xl);
  text-decoration: none;
  transition: opacity var(--transition), background-color var(--transition), color var(--transition);
  color: var(--case-study-link-hover-text);
  background-color: var(--case-study-link-bg);
  padding: var(--spacing-lg);
  border-radius: 6px;
}

.case-study-link:hover {
  opacity: 1;
  color: var(--case-study-link-bg);
  background-color: var(--case-study-link-hover-bg);
}

.case-study-link:hover .tagline {
  opacity: 0.8;
  color: inherit;
}

.case-study-link:hover h3 {
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  color: inherit;
}

/* Desktop: alternating layout with 35/65 split */
@media (min-width: 768px) {
  .case-study-link {
    grid-template-columns: 35% 65%;
    align-items: center;
  }

  /* Odd items: image on left (first column is image) */
  .case-study-link.odd {
    grid-template-columns: calc(65% - var(--spacing-lg) / 2) calc(35% - var(--spacing-lg) / 2);
    grid-template-areas: "image text";
  }

  .case-study-link.odd .case-study-link-image {
    grid-area: image;
  }

  .case-study-link.odd .case-study-link-text {
    grid-area: text;
  }

  /* Even items: image on right (second column is image) */
  .case-study-link.even {
    grid-template-columns: calc(35% - var(--spacing-lg) / 2) calc(65% - var(--spacing-lg) / 2);
    grid-template-areas: "text image";
  }

  .case-study-link.even .case-study-link-image {
    grid-area: image;
  }

  .case-study-link.even .case-study-link-text {
    grid-area: text;
  }
}

.case-study-link-image img {
  width: 100%;
  height: auto;
  border-radius: 6px;
  object-fit: cover;
}

.case-study-link-text h3 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  margin-top: 0;
  margin-bottom: var(--spacing-md);
}

.case-study-link-text .tagline {
  font-size: 1rem;
  color: var(--color-text-light);
  margin: 0;
}

/* ===================================
   Utility Classes
   =================================== */

.container {
  max-width: var(--max-width-wide);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

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

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

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

/* ===================================
   Dark Mode
   =================================== */
@media (prefers-color-scheme: dark) {
  :root {
    /* Swap colors for dark mode */
    --case-study-link-bg: #2a2a2a;
    --case-study-link-hover-bg: #f5f5f5;
    --case-study-link-hover-text: #1a1a1a;
  }
}

/* ===================================
   Print Styles
   =================================== */
@media print {
  body {
    background-color: white;
    color: black;
  }

  a {
    color: inherit;
    text-decoration: underline;
  }

  .no-print {
    display: none;
  }
}