/* nuphirho.dev -- styles.css */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

:root {
  --colour-bg: #fafafa;
  --colour-surface: #ffffff;
  --colour-text: #1a1a1a;
  --colour-text-secondary: #555555;
  --colour-link: #1a6dd4;
  --colour-link-hover: #0f4c8a;
  --colour-border: #e0e0e0;
  --colour-blockquote-border: #d0d0d0;
  --colour-blockquote-bg: #f9f9f9;
  --colour-separator: #dddddd;
  --colour-muted: #555555;
  --colour-accent: #b8860b;
  --colour-accent-muted: #a8894e;
  --transition-theme: background-color 0.3s ease, color 0.3s ease,
    border-color 0.3s ease, box-shadow 0.3s ease;
  --content-width: 720px;
  --body-size: clamp(1.125rem, 1rem + 0.5vw, 1.25rem);
  --line-height: 1.65;
  --header-height: 82px;
}

[data-theme="dark"] {
  --colour-bg: #0d0f14;
  --colour-surface: #181b22;
  --colour-text: #e8e4dd;
  --colour-text-secondary: #a09c94;
  --colour-link: #6db3f2;
  --colour-link-hover: #a0d0ff;
  --colour-border: #2a2d35;
  --colour-blockquote-border: #444444;
  --colour-blockquote-bg: #1a1a1a;
  --colour-separator: #333333;
  --colour-muted: #a09c94;
}

/* Scrollbar */
html {
  overflow-y: scroll;
  scrollbar-width: thin;
  scrollbar-color: var(--colour-border) transparent;
}

/* Layout */
body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
    Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  font-size: var(--body-size);
  line-height: var(--line-height);
  background-color: var(--colour-bg);
  color: var(--colour-text);
  transition: var(--transition-theme);
  min-block-size: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  inline-size: 100%;
  max-inline-size: var(--content-width);
  margin-inline: auto;
  padding-inline: 1.5rem;
}

/* Skip to content */
.skip-link {
  position: absolute;
  inset-block-start: -100%;
  inset-inline-start: 0;
  background: var(--colour-link);
  color: #ffffff;
  padding: 0.5rem 1rem;
  z-index: 100;
  font-size: 0.875rem;
  text-decoration: none;
  transition: var(--transition-theme);
  &:focus { inset-block-start: 0; }
}

/* Header */
.site-header {
  height: var(--header-height);
  padding-block: 1.5rem;
  border-block-end: 1px solid var(--colour-border);
  transition: var(--transition-theme);
}

.site-header .container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.site-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  text-decoration: none;
  color: var(--colour-text);
  transition: var(--transition-theme);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.site-nav a {
  font-family: 'DM Mono', monospace;
  color: var(--colour-accent);
  text-decoration: none;
  font-size: 0.9375rem;
  transition: color 0.2s ease;
  &:hover, &:focus { color: var(--colour-accent-muted); text-decoration: none; }
  &[aria-current="page"] { color: var(--colour-accent-muted); text-decoration: underline; text-underline-offset: 0.2em; }
}

/* Theme toggle */
.theme-toggle {
  background: none;
  border: 1px solid var(--colour-border);
  border-radius: 0.375rem;
  padding: 0.375rem 0.5rem;
  cursor: pointer;
  color: var(--colour-text-secondary);
  font-size: 0.875rem;
  line-height: 1;
  transition: var(--transition-theme);
  white-space: nowrap;
  &:hover, &:focus-visible {
    border-color: var(--colour-link);
    color: var(--colour-link);
    outline: none;
  }
}

/* Main content */
.site-main { flex: 1; padding-block: 3rem; }

/* Footer */
.site-footer {
  padding-block: 2rem;
  border-block-start: 1px solid var(--colour-border);
  transition: var(--transition-theme);
}

.site-footer .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.875rem;
  color: var(--colour-text-secondary);
}

.footer-links { display: flex; gap: 1rem; }

.footer-links a {
  color: var(--colour-text-secondary);
  text-decoration: none;
  transition: var(--transition-theme);
  &:hover, &:focus { color: var(--colour-link); }
}

/* Links */
a {
  color: var(--colour-link);
  text-decoration: none;
  transition: color 0.2s ease;
  &:hover, &:focus {
    color: var(--colour-link-hover);
    text-decoration: underline;
  }
}

/* Manifesto / About content */
.manifesto-content {
  & h2 {
    font-size: 1.5rem;
    font-weight: 600;
    line-height: 1.3;
    margin-block-start: 3rem;
    margin-block-end: 1rem;
    letter-spacing: -0.01em;
  }

  & h2:first-child {
    margin-block-start: 0;
  }

  & p {
    margin-block-end: 1.25rem;
  }

  & strong {
    font-weight: 600;
  }

  & blockquote {
    margin-block-end: 1.25rem;
    padding-inline-start: 1.25rem;
    padding-block: 0.5rem;
    border-inline-start: 3px solid var(--colour-blockquote-border);
    background: var(--colour-blockquote-bg);
    color: var(--colour-text-secondary);
    transition: var(--transition-theme);
  }

  & blockquote p:last-child {
    margin-block-end: 0;
  }

  & .values-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-block-end: 1.25rem;
  }

  & .values-list li {
    line-height: var(--line-height);
  }

  & hr {
    border: none;
    border-block-start: 1px solid var(--colour-border);
    margin-block: 2.5rem;
    transition: var(--transition-theme);
  }

  & .closing-taglines {
    margin-block-start: 2.5rem;
    text-align: center;
    color: var(--colour-text-secondary);
    font-style: italic;
    font-size: 1.0625rem;
  }

  & .closing-taglines p {
    margin-block-end: 0.375rem;
  }

  & a {
    text-decoration: underline;
    text-underline-offset: 0.15em;
  }
}

/* Page title */
.page-header {
  margin-block-end: 2.5rem;
}

.page-title {
  font-size: clamp(1.75rem, 1.25rem + 2vw, 2.5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
  color: var(--colour-accent);
}

/* ---- Landing page ---- */
.landing-body {
  padding: 0;
}

.landing-body .landing-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  margin-inline: auto;
}

.landing-main {
  text-align: center;
  max-width: 480px;
  min-height: calc(100dvh - var(--header-height));
}

.landing-main h1 {
  font-size: clamp(2rem, 1.5rem + 2vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-block-end: 0.5rem;
  color: var(--colour-accent);
}

.landing-tagline {
  color: var(--colour-muted);
  font-size: clamp(1rem, 0.875rem + 0.5vw, 1.15rem);
  margin-block-end: 2rem;
}

.landing-links {
  display: flex;
  gap: 1.5rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-block-end: 0.25rem;
}

.landing-links a {
  font-size: 1rem;
}

.landing-separator {
  width: 3rem;
  border: none;
  border-top: 1px solid var(--colour-separator);
  margin: 1.5rem auto;
}

.landing-author {
  color: var(--colour-muted);
  font-size: 0.9rem;
}

/* ---- Words of Meaning ---- */
.wom-content {
  padding-block: 0;
}

.wom-page {
  max-width: var(--content-width);
  padding: 4rem 1.5rem 6rem;
}

.wom-page h1 {
  font-family: 'DM Serif Display', serif;
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--colour-accent);
  margin-bottom: 0.4rem;
  line-height: 1.2;
}

.wom-page .subtitle {
  color: var(--colour-text-secondary);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 2rem;
}

.wom-page .intro {
  margin-bottom: 1.2rem;
}

.wom-page .intro-grow {
  margin-bottom: 3rem;
}

.wom-page h2 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.6rem;
  font-weight: 400;
  color: var(--colour-accent);
  margin-bottom: 0.5rem;
  line-height: 1.3;
}

.wom-page .etymology {
  font-family: 'DM Mono', monospace;
  font-size: 0.88rem;
  color: var(--colour-text-secondary);
  margin-bottom: 1rem;
  line-height: 1.6;
}

.wom-page .entry p {
  margin-bottom: 1rem;
}

.wom-page .entry p:last-child {
  margin-bottom: 0;
}

.wom-page hr {
  border: none;
  border-top: 1px solid var(--colour-border);
  margin: 2.5rem 0;
}

.wom-page .closing {
  font-style: italic;
  margin-top: 3rem;
  color: var(--colour-text-secondary);
}

/* Responsive */
@media (max-width: 600px) {
  .site-header .container { flex-wrap: wrap; }
  .site-footer .container { flex-direction: column; text-align: center; }

  .wom-page {
    padding: 2.5rem 1.25rem 4rem;
  }

  .wom-page h1 {
    font-size: 1.8rem;
  }

  .wom-page h2 {
    font-size: 1.35rem;
  }
}

/* ---- Mobile Navigation Logic ---- */

/* 1. Hide burger on desktop */
.burger-menu {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 24px;
  height: 20px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 100;
}

/* 1. Set the origin to center for perfect rotation */
.burger-menu span {
  width: 100%;
  height: 2px;
  background-color: var(--colour-accent);
  border-radius: 2px;
  transition: all 0.3s ease;
  transform-origin: center; 
}

/* 2. Mobile styles for screens under 650px */
@media (max-width: 650px) {
  .burger-menu {
    display: flex;
  }

  .site-nav {
    display: none; /* Hide the menu by default */
    flex-direction: column;
    align-items: flex-start;
    gap: 1.5rem;
    
    /* Position it as a dropdown */
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background-color: var(--colour-bg);
    padding: 2rem 1.5rem;
    border-bottom: 1px solid var(--colour-border);
    z-index: 99;
  }

  /* When the 'active' class is added via JS, show the menu */
  .site-nav.active {
    display: flex;
  }

  /* Burger to 'X' animation */
  .burger-menu.active span:nth-child(1) { 
    transform: translateY(7px) rotate(45deg); 
  }
  
  .burger-menu.active span:nth-child(2) { 
    opacity: 0; 
    transform: translateX(-10px); 
  }
  
  .burger-menu.active span:nth-child(3) { 
    transform: translateY(-7px) rotate(-45deg); 
  }
}

/* ---- Novel Findings page ---- */

.page-subtitle {
  margin-block-start: 0.5rem;
  font-size: 0.9375rem;
  color: var(--colour-text-secondary);
  line-height: 1.5;
}

.cluster-intro {
  color: var(--colour-text-secondary);
  font-size: 0.9375rem;
  margin-block-end: 1.5rem;
  font-style: italic;
}

.finding {
  border-inline-start: 3px solid var(--colour-border);
  padding-inline-start: 1.25rem;
  padding-block: 0.25rem;
  margin-block-end: 2rem;
  transition: var(--transition-theme);
}

.finding-watch {
  border-inline-start-color: var(--colour-accent-muted);
  opacity: 0.85;
}

.finding-title {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.4;
  margin-block-end: 0.75rem;
  color: var(--colour-text);
}

.finding p {
  font-size: 0.9375rem;
  margin-block-end: 0.75rem;
  color: var(--colour-text-secondary);
}

.finding p:last-child {
  margin-block-end: 0;
}

.finding-meta {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.finding-note {
  font-size: 0.875rem;
  color: var(--colour-muted);
  font-style: italic;
}

.meta-label {
  font-weight: 600;
  font-size: 0.875rem;
  color: var(--colour-text-secondary);
}

.meta-detail {
  font-size: 0.875rem;
  color: var(--colour-text-secondary);
}

.finding-publication {
  font-size: 0.875rem;
  color: var(--colour-text-secondary);
}

/* Confidence badges */
.confidence-badge {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  padding: 0.15em 0.55em;
  border-radius: 0.25rem;
  line-height: 1.4;
  white-space: nowrap;
  font-family: 'DM Mono', monospace;
}

.confidence-high {
  background-color: #1a4f2a;
  color: #a8f0b8;
}

.confidence-confirmed {
  background-color: #1a3a4f;
  color: #a0d4f0;
}

.confidence-provisional {
  background-color: #4f3a1a;
  color: #f0c87a;
}

.confidence-watch {
  background-color: #2a2a2a;
  color: #b0b0b0;
}

[data-theme="dark"] .confidence-high {
  background-color: #0f3018;
  color: #7de09a;
}

[data-theme="dark"] .confidence-confirmed {
  background-color: #0f2030;
  color: #7abfe0;
}

[data-theme="dark"] .confidence-provisional {
  background-color: #30200f;
  color: #e0b060;
}

[data-theme="dark"] .confidence-watch {
  background-color: #1a1a1a;
  color: #909090;
}