/* =========================================
   1. Design Tokens & Theme Variables
   ========================================= */
@import "@fontsource-variable/inter";
@import "@fontsource-variable/jetbrains-mono";

:root,
[data-theme=light] {
  color-scheme: light;

  /* Typography */
  --font-family: 'Inter Variable', system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono Variable', 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --font-size-base: 17px;
  --line-height: 1.5;

  /* MOBILE FIRST SPACING: Tighter gaps and paddings on small screens */
  --spacing: 1rem;
  --border-radius: 0.375rem;

  /* Base Colors */
  --bg-color: #fff;
  --text-color: #1F2021;
  --h1-color: #01112D;
  --h2-color: #01112D;
  --h3-color: #01112D;
  --muted-color: #646b79;
  --muted-border-color: #e7eaef;
  --card-bg-color: #f7f9fc;

  /* Primary Button/Link Variables */
  --primary-color: var(--text-color);
  --primary-bg: var(--text-color);
  --primary-border: var(--text-color);
  --primary-underline: rgba(31, 32, 33, 0.3);
  --primary-hover: #00BB68;
  --primary-hover-bg: #00BB68;
  --primary-hover-border: #00BB68;
  --primary-hover-underline: #00BB68;
  --primary-focus: rgba(0, 187, 104, 0.5);
  --primary-inverse: #fff;

  /* Contrast Button Variables */
  --contrast-color: #00BB68;
  --contrast-bg: #00BB68;
  --contrast-border: #00BB68;
  --contrast-inverse: #fff;
  --contrast-hover-bg: #00a35a;
  --contrast-hover-border: #00a35a;

  /* Secondary Button Variables */
  --secondary-bg: var(--muted-border-color);
  --secondary-border: var(--muted-border-color);
  --secondary-inverse: var(--text-color);
  --secondary-hover-bg: var(--muted-color);
  --secondary-hover-border: var(--muted-color);
  --secondary-hover-inverse: #fff;

  /* Light Syntax Theme */
  --syntax-bg: #f6f8fa;
  --syntax-text: #24292f;
  --syntax-comment: #6e7781;
  --syntax-keyword: #cf222e;
  --syntax-function: #8250df;
  --syntax-string: #0a3069;
  --syntax-number: #0550ae;
  --syntax-class: #116329;
  --syntax-operator: #24292f;
  --syntax-punctuation: #24292f;
  --syntax-property: #0550ae;
}

[data-theme=dark] {
  color-scheme: dark;

  /* Base Colors */
  --bg-color: #11191f;
  --text-color: #c2c7d0;
  --h1-color: #f0f1f3;
  --h2-color: #f0f1f3;
  --h3-color: #f0f1f3;
  --muted-color: #838994;
  --muted-border-color: #2d3748;
  --card-bg-color: #1a2329;

  /* Primary Button/Link Variables */
  --primary-color: var(--text-color);
  --primary-bg: var(--text-color);
  --primary-border: var(--text-color);
  --primary-underline: rgba(194, 199, 208, 0.3);
  --primary-hover: #00BB68;
  --primary-hover-bg: #00BB68;
  --primary-hover-border: #00BB68;
  --primary-hover-underline: #00BB68;
  --primary-focus: rgba(0, 187, 104, 0.5);
  --primary-inverse: #11191f;

  /* Contrast Button Variables */
  --contrast-color: #00BB68;
  --contrast-bg: #00BB68;
  --contrast-border: #00BB68;
  --contrast-inverse: #11191f;
  --contrast-hover-bg: #00DF81;
  --contrast-hover-border: #00DF81;

  /* Secondary Button Variables */
  --secondary-bg: var(--muted-border-color);
  --secondary-border: var(--muted-border-color);
  --secondary-inverse: var(--text-color);
  --secondary-hover-bg: var(--muted-color);
  --secondary-hover-border: var(--muted-color);
  --secondary-hover-inverse: #fff;

  /* Dark Syntax Theme */
  --syntax-bg: #0d1117;
  --syntax-text: #c9d1d9;
  --syntax-comment: #8b949e;
  --syntax-keyword: #ff7b72;
  --syntax-function: #d2a8ff;
  --syntax-string: #a5d6ff;
  --syntax-number: #79c0ff;
  --syntax-class: #7ee787;
  --syntax-operator: #c9d1d9;
  --syntax-punctuation: #c9d1d9;
  --syntax-property: #79c0ff;
}

/* SCALE UP SPACING FOR TABLET & DESKTOP (48em = 768px) */
@media (min-width: 48em) {
  :root,
  [data-theme=light],
  [data-theme=dark] {
    --spacing: 1.5rem;
  }
}

/* Accent colors for form elements */
progress, [type=checkbox], [type=radio], [type=range] {
  accent-color: #00BB68;
}

/* =========================================
   2. Layout & Containers
   ========================================= */
header, main, footer {
  padding-top: calc(var(--spacing) * 0.5);
  padding-bottom: calc(var(--spacing) * 0.5);
}

@media (min-width: 48em) {
  header, main, footer {
    padding-top: var(--spacing);
    padding-bottom: var(--spacing);
  }
}

section {
  margin-bottom: var(--spacing);
}

.container {
  width: 100%;
  margin-right: auto;
  margin-left: auto;
  padding-right: var(--spacing);
  padding-left: var(--spacing);
}
@media (min-width: 36em) { .container { max-width: 540px; } } /* ~576px */
@media (min-width: 48em) { .container { max-width: 720px; } } /* ~768px */
@media (min-width: 64em) { .container { max-width: 960px; } } /* ~1024px */
@media (min-width: 80em) { .container { max-width: 1000px; } } /* ~1280px */
@media (min-width: 96em) { .container { max-width: 1100px; } } /* ~1536px */

/* =========================================
   3. Modern Reset & Typography Base
   ========================================= */
*, *::before, *::after { box-sizing: border-box; }
body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd, ul, ol, pre, li { margin: 0; padding: 0; }
html { -moz-text-size-adjust: none; -webkit-text-size-adjust: none; text-size-adjust: none; }

body {
  min-height: 100vh;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: var(--line-height);
  color: var(--text-color);
  background-color: var(--bg-color);
}

img, picture, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; }

/* =========================================
   4. Base HTML Elements
   ========================================= */
h1, h2, h3, h4, h5, h6 {
  color: var(--h1-color);
  font-weight: 800;
  --heading-weight: 800;
  line-height: 1.2;
  margin-top: calc(var(--spacing) * 1.5);
  margin-bottom: calc(var(--spacing) * 0.5);
}

h1 { font-size: 2.25rem; }
h2 { font-size: 1.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

p, ul, ol, table, blockquote, details { margin-bottom: var(--spacing); }
ul, ol { padding-left: calc(var(--spacing) * 1.5); }
li { margin-bottom: calc(var(--spacing) * 0.25); }
.task-list-item { list-style-type: none; }

a {
  color: var(--primary-color);
  text-decoration: underline;
  text-decoration-color: var(--primary-underline);
  text-underline-offset: 0.25rem;
  transition: all 0.2s ease-in-out;
}

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

/* Base Link Resets (Keeps buttons from acting like links) */
a.secondary:not([role="button"]) {
  color: var(--muted-color);
}

a.secondary:not([role="button"]):hover {
  color: var(--primary-hover);
}

/* Contrast links (like blog/project headers) */
a.contrast:not([role="button"]) {
  color: var(--contrast-color);
  font-weight: var(--heading-weight, 500);
}

a.contrast:not([role="button"]):hover {
  color: var(--primary-color);
  text-decoration-color: var(--primary-color);
}

small { font-size: 0.875em; color: var(--muted-color); }
hr { border: none; border-top: 1px solid var(--muted-border-color); margin: calc(var(--spacing) * 2) 0; }

blockquote {
  border-left: 0.25rem solid var(--muted-border-color);
  padding-left: var(--spacing);
  color: var(--muted-color);
}

/* =========================================
   5. Syntax Highlighting & Code Blocks
   ========================================= */

/* Base Code Block Styling */
pre[class*="language-"],
code[class*="language-"] {
  color: var(--syntax-text);
  font-family: var(--font-mono);
  font-size: 0.875em;
  font-variant-ligatures: contextual;
  direction: ltr;
  text-align: left;
  white-space: pre;
  word-spacing: normal;
  word-break: normal;
  line-height: 1.6;
  tab-size: 4;
  hyphens: none;
}

/* The outer `<pre>` container */
pre[class*="language-"] {
  padding: 1.25rem;
  margin-bottom: var(--spacing);
  overflow-x: auto;
  background-color: var(--syntax-bg);
  border: 1px solid var(--muted-border-color);
  border-radius: var(--border-radius);
  box-shadow: inset 0 1px 4px rgba(0, 0, 0, 0.05);
}

/* Inline code inside paragraphs (not in a pre block) */
:not(pre) > code[class*="language-"],
:not(pre) > code {
  font-family: var(--font-mono);
  font-size: 0.875em;
  padding: 0.2em 0.4em;
  background-color: color-mix(in srgb, var(--primary-color) 8%, transparent);
  color: var(--text-color);
  border-radius: 0.25rem;
  white-space: normal;
}

/* Token Colors */
.token.comment,
.token.prolog,
.token.doctype,
.token.cdata { color: var(--syntax-comment); font-style: italic; }
.token.punctuation { color: var(--syntax-punctuation); }
.token.namespace { opacity: 0.7; }

.token.property,
.token.tag,
.token.boolean,
.token.number,
.token.constant,
.token.symbol,
.token.deleted { color: var(--syntax-number); }

.token.selector,
.token.attr-name,
.token.string,
.token.char,
.token.builtin,
.token.inserted { color: var(--syntax-string); }

.token.operator,
.token.entity,
.token.url,
.language-css .token.string,
.style .token.string { color: var(--syntax-operator); }

.token.atrule,
.token.attr-value,
.token.keyword { color: var(--syntax-keyword); }
.token.function { color: var(--syntax-function); }
.token.class-name { color: var(--syntax-class); }

.token.regex,
.token.important,
.token.variable { color: var(--syntax-property); }

.token.important,
.token.bold { font-weight: 600; }
.token.italic { font-style: italic; }
.token.entity { cursor: help; }

/* =========================================
   6. Articles & Buttons
   ========================================= */
article {
  padding: var(--spacing);
  margin-bottom: var(--spacing);
  background-color: var(--bg-color);
  border-radius: var(--border-radius);
}

article > header, article > footer { background-color: transparent; }

/* Default Buttons (Black/Dark) */
button, [role="button"] {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  margin-bottom: var(--spacing);
  background-color: var(--primary-bg);
  color: var(--primary-inverse);
  border: 1px solid var(--primary-border);
  border-radius: var(--border-radius);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, color 0.2s;
}

button:hover, [role="button"]:hover {
  background-color: var(--primary-hover-bg);
  border-color: var(--primary-hover-border);
  color: var(--primary-inverse);
  text-decoration: none;
}

/* Secondary Buttons (Muted Gray) */
button.secondary, [role="button"].secondary {
  background-color: var(--secondary-bg);
  color: var(--secondary-inverse);
  border-color: var(--secondary-border);
}

button.secondary:hover, [role="button"].secondary:hover {
  background-color: var(--secondary-hover-bg);
  border-color: var(--secondary-hover-border);
  color: var(--secondary-hover-inverse);
}

/* Contrast Buttons (Brand Green) */
button.contrast, [role="button"].contrast {
  background-color: var(--contrast-bg);
  color: var(--contrast-inverse);
  border-color: var(--contrast-border);
}

button.contrast:hover, [role="button"].contrast:hover {
  background-color: var(--contrast-hover-bg);
  border-color: var(--contrast-hover-border);
  color: var(--contrast-inverse);
}

.icon {
  width: 1.25em;
  height: 1.25em;
  display: inline-block;
  vertical-align: -0.225em;
  flex-shrink: 0;
}
/* =========================================
   Navigation Flexbox Layout & Mobile Menu
   ========================================= */
nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0;
  position: relative; /* Context for absolute mobile menu */
}

/* Mobile Waffle/Menu Toggle Base */
.menu-toggle {
  display: grid;           /* Use grid to easily stack the icons */
  place-items: center;
  background: transparent;
  border: none;
  padding: 0.25rem;
  color: var(--text-color);
  cursor: pointer;
  margin-bottom: 0;
  border-radius: var(--border-radius);
  transition: background-color 0.2s ease, color 0.2s ease;
  width: 2.25rem;
  height: 2.25rem;
}

/* Keep the active/hover state when open */
.menu-toggle:hover,
nav.is-open .menu-toggle {
  background-color: color-mix(in srgb, var(--primary-color) 8%, transparent);
  color: var(--primary-hover);
}

/* Stack both icons in the same grid cell and set up the animation */
.menu-toggle svg {
  grid-area: 1 / 1;
  transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.3s ease;
}

/* 1. Closed State (Hamburger visible, X hidden & spun left) */
.menu-toggle .icon-close {
  opacity: 0;
  transform: rotate(-90deg) scale(0.5);
}
.menu-toggle .icon-hamburger {
  opacity: 1;
  transform: rotate(0) scale(1);
}

/* 2. Open State (Hamburger hidden & spun right, X visible) */
nav.is-open .menu-toggle .icon-close {
  opacity: 1;
  transform: rotate(0) scale(1);
}
nav.is-open .menu-toggle .icon-hamburger {
  opacity: 0;
  transform: rotate(90deg) scale(0.5);
}

/* Hide navigation list on mobile, setup as dropdown */
nav ul {
  display: none; /* Hidden by default */
  flex-direction: column;
  position: absolute;
  top: 100%;
  right: 0; /* Anchor to the right side */
  min-width: 14rem; /* Give it a nice fixed width */
  background-color: var(--bg-color);
  padding: var(--spacing);
  border: 1px solid var(--muted-border-color); /* Border all around */
  border-radius: var(--border-radius); /* Match your card styling */
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1); /* Soft floating shadow */
  margin: 0.5rem 0 0 0; /* Add a tiny gap below the header */
  list-style: none;
  gap: var(--spacing);
  z-index: 999;
  align-items: flex-end; /* Push the text links to the right */
}

/* When a JS script toggles this class, the mobile menu appears */
nav.is-open ul {
  display: flex;
}

nav a {
  text-decoration: none;
  color: var(--text-color);
}

nav a:hover {
  text-decoration: none;
  color: var(--primary-hover);
}

nav ul li a[aria-current="page"] {
  font-weight: 700;
  color: var(--primary-hover);
}

/* =========================================
   Desktop Navigation Overrides (48em = 768px)
   ========================================= */
@media (min-width: 48em) {
  .menu-toggle {
    display: none; /* Hide toggle on desktop */
  }

  nav ul {
    display: flex; /* Always visible horizontally */
    flex-direction: row;
    position: static;
    width: auto;
    background-color: transparent;
    padding: 0;
    border: none;
    box-shadow: none;
    margin-top: 0; /* Reset mobile gap */
    align-items: center; /* Reset text alignment for the horizontal row */
  }
}

/* =========================================
   Sticky nav (Home)
   ========================================= */
.sticky-nav-wrapper {
  position: sticky;
  top: 0;
  z-index: 1000;
  width: 100%;
  background-color: color-mix(in srgb, var(--bg-color), transparent 5%);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--muted-border-color);
}

/* =========================================
   Logo Styling
   ========================================= */
.logo-mobile, .logo-desktop-light, .logo-desktop-dark {
  height: 3rem;
  width: auto;
  flex-shrink: 0;
}
.logo-mobile {
  height: 2rem;
}

.logo-mobile { display: block; }
.logo-desktop-light { display: none; }
.logo-desktop-dark { display: none; }

@media (min-width: 48em) {
  .logo-mobile { display: none; }
  [data-theme="light"] .logo-desktop-light { display: block; }
  [data-theme="dark"] .logo-desktop-dark { display: block; }
}

/* =========================================
   Theme Toggle Styling
   ========================================= */
.theme-toggle .sun-icon,
.theme-toggle .moon-icon,
.theme-toggle .auto-icon { display: none; }

[data-user-preference="light"] .theme-toggle .sun-icon { display: inline-block; }
[data-user-preference="dark"] .theme-toggle .moon-icon { display: inline-block; }
[data-user-preference="auto"] .theme-toggle .auto-icon,
:root:not([data-user-preference]) .theme-toggle .auto-icon { display: inline-block; }
.splash-hero {
  width: 100%;
  height: 85vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.splash-hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url('../images/hero-wave.svg');
  background-size: 100% auto;
  background-position: center top;
  background-repeat: no-repeat;
  z-index: -1;
}

@media (min-aspect-ratio: 2/1) {
  .splash-hero::before {
    background-size: cover;
    background-position: center 50%;
  }
}

/* Brighten text color against splash  */
[data-theme="dark"] .splash-hero p {
  color: var(--h1-color);
}
[data-theme="dark"] .splash-hero small {
  /* Mixes the bright text with 15% black to dim the brightness, not the opacity */
  color: color-mix(in srgb, var(--h1-color) 85%, black);
}

[data-theme="dark"] .splash-hero::before {
  filter: brightness(0.5) contrast(1.2);
}

.splash-hero h1 {
  font-size: clamp(2rem, 8vw, 3.5rem);
  font-weight: 800;
  margin-bottom: 1rem;
}
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(min(100%, 20rem), 1fr));
  gap: var(--spacing);
  margin-block: var(--spacing);
  align-items: stretch;
}

.card-grid > article {
  display: flex;
  flex-direction: column;
  height: 100%;
  margin-bottom: 0;
  background-color: var(--card-bg-color); /* Overrides global base for projects */
  border: 1px solid var(--muted-border-color);
}

.card-grid > article > p {
  flex: 1;
}

.card-grid > article > footer {
  margin-top: auto;
  background-color: transparent;
}
.blog-list {
  margin-top: 3rem;
}

.blog-list .blog-entry {
  margin-bottom: 3rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--muted-border-color);
}

.blog-list .blog-entry:last-child {
  border-bottom: none;
}

.blog-list .blog-entry a.contrast {
  text-decoration: underline;
  text-decoration-color: transparent;
  text-decoration-thickness: 3px;
  text-underline-offset: 4px;
  transition: all 0.2s ease-in-out;
  display: inline;
}

.blog-list .blog-entry a.contrast:hover {
  text-decoration-color: var(--primary-color);
  color: var(--primary-color);
}

.blog-list .blog-entry .post-title-group,
.blog-list .blog-entry p {
  margin-bottom: 0.75rem;
}

.blog-list .read-more {
  font-weight: bold;
}

/* Header row for individual posts */
.post-header-row {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1rem;
}

.post-header-row .post-title-group {
  margin-bottom: 0;
}

.post-header-row .post-title-group h2 {
  margin-bottom: 0.15rem;
  line-height: 1.2;
}

.post-header-row .post-title-group small {
  display: block;
}

.post-number {
  font-family: inherit;
  font-weight: 800;
  color: var(--muted-color);
  user-select: none;
}

.post-number.desktop-only {
  font-size: 1.75rem;
  line-height: 1.2;
}

.mobile-only {
  display: none;
}

@media (max-width: 48em) {
  .desktop-only { display: none; }

  .mobile-only {
    display: inline;
    margin-right: 0.35rem;
  }

  .post-header-row { display: block; }
  .post-header-row .post-title-group h2 { font-size: 1.5rem; }
}
@media (min-width: 48em) {
  .team-grid {
    display: grid;
    grid-template-columns: 1fr 4fr;
    gap: var(--spacing);
  }
}
@media (max-width: 48em) {
  .team-grid {
    img {
      max-width: 250px;
      margin-bottom: 3rem;
    }
  }
}