/* Theme variables */
:root {
  /* Dark theme (default) */
  --bg-base: #1a1a28;
  --bg-mantle: #141420;
  --bg-surface: #2a2a3c;
  --bg-header: rgba(26, 26, 40, 0.9);

  --border: #313244;
  --border-hover: #3d3d52;

  --text: #cdd6f4;
  --text-muted: #a6adc8;
  --text-faint: #6c7086;

  --accent-green: #c3e88d;
  --accent-green-bg: rgba(195, 232, 141, 0.08);
  --accent-purple: #c792ea;
  --accent-yellow: #ffcb6b;
  --accent-blue: #82aaff;

  color-scheme: dark;
}

[data-theme="light"] {
  --bg-base: #e4e6f0;
  --bg-mantle: #f0f2fa;
  --bg-surface: #d0d2e0;
  --bg-header: rgba(228, 230, 240, 0.9);

  --border: #b8bad0;
  --border-hover: #a0a2b8;

  --text: #1a1a28;
  --text-muted: #4a4c5c;
  --text-faint: #6c6e7e;

  --accent-green: #4a9c4a;
  --accent-green-bg: rgba(74, 156, 74, 0.1);
  --accent-purple: #9054b0;
  --accent-yellow: #b8860b;
  --accent-blue: #3b6fd4;

  color-scheme: light;
}

/* Base layout */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "JetBrains Mono", "IBM Plex Mono", "SFMono-Regular", Menlo,
    Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  background: var(--bg-base);
  color: var(--text);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Layout wrapper */

.site-header,
.site-main,
.site-footer {
  padding-inline: 1.5rem;
}

.site-header-inner,
.site-main {
  max-width: 960px;
  margin-inline: auto;
}

/* Header */

.site-header {
  border-bottom: 1px solid var(--border);
  padding-block: 1.5rem;
  position: sticky;
  top: 0;
  backdrop-filter: blur(10px);
  background: var(--bg-header);
  z-index: 10;
  transition: background-color 0.3s ease, border-color 0.3s ease;
}

.site-header-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.site-title-block {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.site-title {
  font-size: 1.8rem;
  margin: 0;
  letter-spacing: 0.03em;
}

.site-title a {
  color: inherit;
  text-decoration: none;
}

.site-title a:hover {
  text-decoration: none;
}

.site-tagline {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* Navigation */

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  font-size: 0.85rem;
  align-items: center;
}

.site-nav a {
  text-decoration: none;
  color: var(--accent-green);
  padding: 0.1rem 0.3rem;
  border-radius: 3px;
  border: 1px solid transparent;
  transition: border-color 0.15s ease, background-color 0.15s ease;
}

.site-nav a:hover,
.site-nav a:focus {
  border-color: var(--accent-green);
  background: var(--accent-green-bg);
  text-decoration: none;
}

/* Theme toggle */

.theme-toggle {
  background: none;
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0.25rem 0.4rem;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1;
  transition: border-color 0.15s ease, color 0.15s ease;
  margin-left: auto;
}

.theme-toggle:hover {
  border-color: var(--text-muted);
  color: var(--text);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
  display: none;
}

:root .theme-toggle .icon-sun {
  display: inline;
}

[data-theme="light"] .theme-toggle .icon-moon {
  display: inline;
}

[data-theme="light"] .theme-toggle .icon-sun {
  display: none;
}

/* Main content */

.site-main {
  padding-block: 2.5rem 3.5rem;
}

/* Sections */

.section {
  margin-bottom: 3rem;
}

h1, h2, h3, h4 {
  line-height: 1.3;
}

h2 {
  font-size: 1.1rem;
  text-transform: lowercase;
  letter-spacing: 0.12em;
  margin-top: 2.5rem;
  margin-bottom: 0.75rem;
  color: var(--accent-purple);
}

h3 {
  font-size: 1rem;
  color: var(--accent-yellow);
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
}

p {
  margin-top: 0;
  margin-bottom: 1rem;
  padding: 0.15rem 0.35rem;
  margin-left: -0.35rem;
  border-radius: 3px;
  transition: background-color 0.15s ease;
}

/* Line hover highlights */
.site-main p:hover,
.site-main li:hover {
  background-color: var(--bg-surface);
}

/* Projects */

.project {
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 1rem 1.1rem;
  margin-top: 1.25rem;
  background: var(--bg-mantle);
  transition: background-color 0.15s ease, border-color 0.15s ease;
}

.project:hover {
  background-color: var(--bg-surface);
  border-color: var(--border-hover);
}

/* Disable line hover inside project cards */
.project p:hover,
.project li:hover {
  background-color: transparent;
}

.project-header {
  margin-bottom: 0.75rem;
}

.project-title {
  margin: 0 0 0.25rem 0;
  font-size: 1rem;
  color: var(--accent-yellow);
}

.project-title a {
  color: inherit;
  text-decoration: none;
}

.project-title a:hover {
  text-decoration: underline;
}

.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.project-summary {
  margin-top: 0.5rem;
  margin-bottom: 0.75rem;
}

.project-points {
  padding-left: 1.1rem;
  margin: 0;
}

.project-points li {
  margin-bottom: 0.2rem;
}

/* Generic lists */

ul, ol {
  padding-left: 1.1rem;
  margin-top: 0.5rem;
  margin-bottom: 1rem;
}

li {
  margin-bottom: 0.35rem;
  padding: 0.15rem 0.35rem;
  margin-left: -0.35rem;
  border-radius: 3px;
  transition: background-color 0.15s ease;
}

/* Notes & labels */

.note {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.9rem;
}

.note-label {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.7rem;
  color: var(--accent-blue);
}

/* Contact */

.contact-line {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.9rem;
}

.contact-label {
  width: 5rem;
  text-transform: lowercase;
  color: var(--text-muted);
}

/* Links */

a {
  color: var(--accent-blue);
}

a:hover,
a:focus {
  text-decoration: underline;
}

/* Work history */

.work-history {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.work-item {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 0.3rem 0.35rem;
  margin-left: -0.35rem;
  border-radius: 3px;
  transition: background-color 0.15s ease;
}

.work-item:hover {
  background-color: var(--bg-surface);
}

.work-years {
  width: 7rem;
  flex-shrink: 0;
  color: var(--text-muted);
  font-size: 0.85rem;
}

.work-role {
  color: var(--text);
}

/* Project page images */

.site-main img {
  max-width: 100%;
  height: auto;
  border-radius: 6px;
  border: 1px solid var(--border);
  margin: 1rem 0;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border);
  padding-block: 1.5rem 2rem;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-faint);
  transition: border-color 0.3s ease;
}

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

/* Responsive tweaks */

@media (min-width: 768px) {
  .site-header-inner {
    flex-direction: row;
    align-items: flex-end;
    justify-content: space-between;
  }

  .site-nav {
    gap: 0.75rem;
  }

  .theme-toggle {
    margin-left: 1rem;
  }
}