/* =============================================================
   PORTFOLIO · Fatima Mariana Ramirez Rodriguez
   Shared base styles + design tokens
============================================================= */

/* ===== Design tokens ===== */
:root {
  /* DARK PALETTE (for Home, About) */
  --dark-bg: #0e262c;
  --dark-bg-elevated: #143335;
  --dark-bg-card: #1a4042;
  --dark-text: #ece3cc;
  --dark-text-dim: rgba(236, 227, 204, 0.7);
  --dark-line: rgba(236, 227, 204, 0.2);
  --dark-mustard: #f5af42;
  --dark-teal-mid: #5a8281;
  --dark-red: #b8553a;

  /* LIGHT PALETTE (for project pages) */
  --light-bg: #ece3cc;
  --light-bg-soft: #f2ebd8;
  --light-bg-card: #e6dcbf;
  --light-text: #0e262c;
  --light-text-dim: rgba(14, 38, 44, 0.7);
  --light-line: rgba(14, 38, 44, 0.2);
  --light-mustard: #e09420;
  --light-mustard-bright: #f5af42;
  --light-teal-mid: #5a8281;
  --light-red: #b8553a;

  /* Typography */
  --font-display: 'Barlow Condensed', sans-serif;
  --font-body: 'Inter Tight', system-ui, sans-serif;
  --font-mono: 'Geist Mono', 'JetBrains Mono', monospace;
  --font-serif: 'Instrument Serif', serif;

  /* Spacing */
  --space-xs: 0.4rem;
  --space-sm: 0.8rem;
  --space-md: 1.4rem;
  --space-lg: 2.2rem;
  --space-xl: 3.5rem;

  /* Containers */
  --max-content: 760px;
}

/* ===== Reset ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-body);
  line-height: 1.5;
  min-height: 100vh;
}

/* ===== Page-level themes ===== */
body.theme-dark {
  background: var(--dark-bg);
  color: var(--dark-text);
}

body.theme-light {
  background: var(--light-bg);
  color: var(--light-text);
}

/* ===== Display & typography utilities ===== */
.display {
  font-family: var(--font-display);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: -0.02em;
  line-height: 0.88;
}

.display em {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 300;
  text-transform: lowercase;
}

.theme-dark .display em { color: var(--dark-mustard); }
.theme-light .display em { color: var(--light-mustard); }

.serif {
  font-family: var(--font-serif);
  font-style: italic;
}

.mono {
  font-family: var(--font-mono);
}

/* ===== Header strip (terminal-style) ===== */
.header-strip {
  padding: 0.55rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.theme-dark .header-strip {
  background: var(--dark-text);
  color: var(--dark-bg);
}

.theme-light .header-strip {
  background: var(--light-text);
  color: var(--light-bg);
}

.header-strip .dots { letter-spacing: 0.25em; color: var(--dark-red); }
.theme-light .header-strip .dots { color: var(--light-red); }
.header-strip .center { opacity: 0.75; }
.header-strip .right { opacity: 0.7; }

/* ===== Navigation ===== */
.nav {
  padding: 0.8rem 1.5rem 0;
  max-width: var(--max-content);
  margin: 0 auto;
  border-bottom: 1px solid;
  margin-bottom: 1.4rem;
}

.theme-dark .nav { border-color: var(--dark-line); }
.theme-light .nav { border-color: var(--light-line); }

.nav ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding-bottom: 0.7rem;
  align-items: center;
}

.nav a {
  text-decoration: none;
  opacity: 0.7;
  transition: opacity 0.2s, color 0.2s;
}

.theme-dark .nav a { color: var(--dark-text); }
.theme-light .nav a { color: var(--light-text); }

.nav a:hover {
  opacity: 1;
}

.theme-dark .nav a:hover { color: var(--dark-mustard); }
.theme-light .nav a:hover { color: var(--light-mustard); }

.nav a.current {
  opacity: 1;
  border-bottom: 1px solid;
  padding-bottom: 0.2rem;
}

.theme-dark .nav a.current {
  color: var(--dark-mustard);
  border-bottom-color: var(--dark-mustard);
}

.theme-light .nav a.current {
  color: var(--light-mustard);
  border-bottom-color: var(--light-mustard);
}

.nav .lang-toggle {
  margin-left: auto;
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.nav .lang-toggle button {
  background: none;
  border: 1px solid;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  cursor: pointer;
  opacity: 0.6;
  transition: opacity 0.2s, color 0.2s, border-color 0.2s;
}

.theme-dark .nav .lang-toggle button {
  color: var(--dark-text);
  border-color: var(--dark-line);
}

.theme-light .nav .lang-toggle button {
  color: var(--light-text);
  border-color: var(--light-line);
}

.nav .lang-toggle button:hover { opacity: 1; }

.nav .lang-toggle button.active {
  opacity: 1;
}

.theme-dark .nav .lang-toggle button.active {
  color: var(--dark-mustard);
  border-color: var(--dark-mustard);
}

.theme-light .nav .lang-toggle button.active {
  color: var(--light-mustard);
  border-color: var(--light-mustard);
}

/* ===== Cursor blink (signature element) ===== */
.cursor {
  display: inline-block;
  width: 0.5em;
  height: 1em;
  vertical-align: -0.15em;
  margin-left: 2px;
  animation: blink 1.1s steps(2) infinite;
}

.theme-dark .cursor { background: var(--dark-mustard); }
.theme-light .cursor { background: var(--light-mustard); }

@keyframes blink {
  50% { opacity: 0; }
}

/* ===== Main container ===== */
main {
  padding: 0 1.5rem 2.5rem;
  max-width: var(--max-content);
  margin: 0 auto;
}

/* ===== Section labels ===== */
.section-label {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  opacity: 0.65;
  margin: 1.5rem 0 0.8rem;
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.section-label .count {
  opacity: 1;
}

.theme-dark .section-label .count { color: var(--dark-mustard); }
.theme-light .section-label .count { color: var(--light-mustard); }

/* ===== Page transitions (smooth language switch) ===== */
[data-i18n] {
  transition: opacity 0.15s;
}

body.lang-switching [data-i18n] {
  opacity: 0;
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .nav ul { gap: 0.7rem; font-size: 0.6rem; }
  main { padding: 0 1.1rem 2rem; }
}

/* ===== Print friendliness ===== */
@media print {
  .nav, .header-strip { display: none; }
  body { background: white; color: black; }
}