/* =========================================================
   Timbre Meander — Stylesheet
   Palette: Dracula (https://draculatheme.com)
   ========================================================= */

:root {
  /* Fluid typography (clamp) — min, fluid, max */
  --fs-title:   clamp(3.5rem, 12vw + 1rem, 9rem);
  --fs-tagline: clamp(0.85rem, 0.4vw + 0.75rem, 1rem);
  --fs-poem-title: clamp(2.5rem, 4vw + 1rem, 4rem);
  --fs-poem-author: clamp(0.95rem, 0.4vw + 0.85rem, 1.15rem);
  --fs-poem-body:  clamp(1.rem, 0.6vw + 0.85rem, 1.25rem);
  --fs-btn:        clamp(0.75rem, 0.3vw + 0.65rem, 1rem);
  --fs-footer:     clamp(0.75rem, 0.2vw + 0.7rem, 0.85rem);
  --blockquote: clamp(0.65rem, 0.2vw + 0.55rem, 0.9rem);

  /* Spacing */
  --pad-page: clamp(1.25rem, 4vw, 3rem);
}

/* =========================================================
   THEME: Cyberpunk (default) — Dracula palette, neon glow
   ========================================================= */
:root,
[data-theme="cyberpunk"] {
  --bg:        #282a36;
  --bg-soft:   #21222c;
  --line:      #44475a;
  --fg:        #f8f8f2;
  --muted:     #6272a4;
  --cyan:      #8be9fd;
  --green:     #50fa7b;
  --orange:    #ffb86c;
  --pink:      #ff79c6;
  --purple:    #bd93f9;
  --red:       #ff5555;
  --yellow:    #f1fa8c;

  --font-display: 'Jacquard 24', 'Cormorant Garamond', serif;
  --font-body:    'Instrument Serif', serif;
  --font-ui:      'Montserrat', sans-serif;

  --title-gradient: linear-gradient(180deg, var(--purple) 0%, var(--pink) 70%, var(--orange) 100%);
  --title-glow: 0 0 30px rgba(189, 147, 249, 0.35), 0 0 1px rgba(189, 147, 249, 0.5);
  --title-drop-shadow: drop-shadow(0 4px 20px rgba(189, 147, 249, 0.25));
  --title-transform: lowercase;
  --title-tracking: 0;

  --tagline-transform: lowercase;

  --poem-title-glow: 0 0 18px rgba(139, 233, 253, 0.25);
  --poem-shadow: 0 30px 60px -20px rgba(0, 0, 0, 0.5), 0 0 0 1px rgba(98, 114, 164, 0.2) inset;
  --poem-bg-gradient: linear-gradient(180deg, rgba(33, 34, 44, 0.85), rgba(40, 42, 54, 0.6));
  --corner-display: block;
  --grain-opacity: 0.12;
  --divider-content: "------------";

  --card-radius: 2px;
  --btn-radius: 2px;
  --btn-transform: uppercase;
}

/* =========================================================
   THEME: Minimal — inspired by Obsidian Baseline
   Clean, quiet, light, no glow, generous whitespace
   ========================================================= */
[data-theme="minimal"] {
  --bg:        #faf9f7;
  --bg-soft:   #f1efeb;
  --line:      #e3e0da;
  --fg:        #262521;
  --muted:     #8c8880;
  --cyan:      #232323;
  --green:     #4c8c5c;
  --orange:    #b5763b;
  --pink:      #232323;
  --purple:    #5b5bd6;
  --red:       #232323;
  --yellow:    #a68b2c;

  --font-display: 'Instrument Serif', serif;
  --font-body:    'Open Sans', sans-serif;
  --font-ui:      'Open Sans', sans-serif;

  --title-gradient: linear-gradient(180deg, var(--fg), var(--fg));
  --title-glow: none;
  --title-drop-shadow: none;
  --title-transform: none;
  --title-tracking: -0.02em;

  --tagline-transform: none;

  --poem-title-glow: none;
  --poem-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 0 0 1px rgba(0, 0, 0, 0.05) inset;
  --poem-bg-gradient: linear-gradient(180deg, #ffffff, #fbfaf8);
  --corner-display: none;
  --grain-opacity: 0;
  --divider-content: "—";

  --card-radius: 10px;
  --btn-radius: 6px;
  --btn-transform: none;
}

/* =========================================================
   THEME: Dracula — the canonical Dracula palette, editorial
   ========================================================= */
[data-theme="dracula"] {
  --bg:        #282a36;
  --bg-soft:   #21222c;
  --line:      #44475a;
  --fg:        #f8f8f2;
  --muted:     #6272a4;
  --cyan:      #8be9fd;
  --green:     #50fa7b;
  --orange:    #ffb86c;
  --pink:      #ff79c6;
  --purple:    #bd93f9;
  --red:       #ff5555;
  --yellow:    #f1fa8c;

  --font-display: 'Playfair Display', serif;
  --font-body:    'Lora', serif;
  --font-ui:      'Inter', sans-serif;

  --title-gradient: linear-gradient(180deg, var(--pink) 0%, var(--purple) 100%);
  --title-glow: none;
  --title-drop-shadow: none;
  --title-transform: none;
  --title-tracking: 0.01em;

  --tagline-transform: none;

  --poem-title-glow: none;
  --poem-shadow: 0 20px 40px -18px rgba(0, 0, 0, 0.5);
  --poem-bg-gradient: linear-gradient(180deg, rgba(33, 34, 44, 0.9), rgba(40, 42, 54, 0.75));
  --corner-display: none;
  --grain-opacity: 0.04;
  --divider-content: "\2022  \2022  \2022";

  --card-radius: 4px;
  --btn-radius: 3px;
  --btn-transform: none;
}

/* =========================================================
   THEME: Terminal — inspired by spy-terminal-theme
   Phosphor green CRT, monospace, hard edges
   ========================================================= */
[data-theme="terminal"] {
  --bg:        #060a06;
  --bg-soft:   #0a100a;
  --line:      #1f3d1f;
  --fg:        #39ff6a;
  --muted:     #2a9c4a;
  --cyan:      #6dffc7;
  --green:     #39ff6a;
  --orange:    #ccff33;
  --pink:      #39ff6a;
  --purple:    #6dffc7;
  --red:       #ff4d4d;
  --yellow:    #ccff33;

  --font-display: 'VT323', monospace;
  --font-body:    'Space Mono', monospace;
  --font-ui:      'Space Mono', monospace;

  --title-gradient: linear-gradient(180deg, var(--fg), var(--fg));
  --title-glow: 0 0 8px rgba(57, 255, 106, 0.65), 0 0 2px rgba(57, 255, 106, 0.9);
  --title-drop-shadow: drop-shadow(0 0 14px rgba(57, 255, 106, 0.35));
  --title-transform: uppercase;
  --title-tracking: 0.06em;

  --tagline-transform: uppercase;

  --poem-title-glow: 0 0 6px rgba(57, 255, 106, 0.5);
  --poem-shadow: 0 0 0 1px rgba(57, 255, 106, 0.25) inset, 0 0 30px rgba(57, 255, 106, 0.08);
  --poem-bg-gradient: linear-gradient(180deg, rgba(6, 10, 6, 0.95), rgba(10, 16, 10, 0.85));
  --corner-display: block;
  --grain-opacity: 0.06;
  --divider-content: "//////////////";

  --card-radius: 0px;
  --btn-radius: 0px;
  --btn-transform: uppercase;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-ui);
  font-optical-sizing: auto;
  font-weight: 300;
  font-style: normal;
}

body {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  background:
    radial-gradient(ellipse at top, rgba(189, 147, 249, 0.08), transparent 55%),
    radial-gradient(ellipse at bottom, rgba(255, 121, 198, 0.05), transparent 55%),
    var(--bg);
  padding: var(--pad-page);
  overflow-x: hidden;
  transition: background-color 0.4s ease, color 0.4s ease;
}

/* Subtle paper-grain overlay */
.grain {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  opacity: var(--grain-opacity);
  mix-blend-mode: overlay;
  background-image:
    radial-gradient(rgba(248, 248, 242, 0.55) 1px, transparent 1px),
    radial-gradient(rgba(98, 114, 164, 0.4) 1px, transparent 1px);
  background-size: 3px 3px, 5px 5px;
  background-position: 0 0, 1px 2px;
  transition: opacity 0.4s ease;
}

/* ======================= HEADER ======================= */

.site-header {
  position: relative;
  z-index: 2;
  text-align: center;
  padding-block: clamp(1rem, 4vw, 2.5rem) clamp(1.5rem, 4vw, 3rem);
  width: 100%;
  max-width: 1100px;
}

.site-title {
  font-family: var(--font-display);
  font-size: var(--fs-title);
  font-weight: 400;
  line-height: 0.95;
  letter-spacing: var(--title-tracking);
  text-transform: var(--title-transform);
  margin: 0;
  color: var(--purple);
  text-shadow: var(--title-glow);
  background: var(--title-gradient);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  filter: var(--title-drop-shadow);
  transition: color 0.4s ease;
}

.site-tagline {
  font-family: var(--font-body);
  font-style: italic;
  font-size: var(--fs-tagline);
  letter-spacing: 2px;
  text-transform: var(--tagline-transform);
  color: var(--muted);
  margin: clamp(0.5rem, 1.5vw, 1rem) 0 0;
}

/* ==================== THEME PICKER ===================== */

.theme-picker {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6em;
  margin: clamp(1rem, 3vw, 1.5rem) 0 0;
  font-family: var(--font-ui);
}

.theme-picker-label {
  font-size: var(--fs-footer);
  letter-spacing: 1.5px;
  text-transform: var(--tagline-transform, lowercase);
  color: var(--muted);
}

.theme-select {
  font-family: var(--font-ui);
  font-size: var(--fs-footer);
  letter-spacing: 1px;
  color: var(--fg);
  background: var(--bg-soft);
  border: 1px solid var(--line);
  border-radius: var(--btn-radius);
  padding: 0.4em 0.8em;
  cursor: pointer;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.theme-select:hover,
.theme-select:focus-visible {
  border-color: var(--purple);
  color: var(--purple);
  outline: none;
}

.theme-select option {
  background: var(--bg-soft);
  color: var(--fg);
}

/* ======================= STAGE ======================== */

.stage {
  position: relative;
  z-index: 2;
  width: 100%;
  max-width: 900px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: clamp(1.5rem, 4vw, 2.5rem);
  flex: 1;
}

.poem {
  position: relative;
  background: var(--poem-bg-gradient);
  border: 1px solid var(--line);
  border-radius: var(--card-radius);
  padding: clamp(1.75rem, 5vw, 3.5rem) clamp(1.5rem, 5vw, 3.5rem);
  min-height: 320px;
  box-shadow: var(--poem-shadow);
  transition: opacity 0.5s ease, box-shadow 0.4s ease, border-radius 0.4s ease;
}

/* Decorative corner marks */
.poem::before,
.poem::after {
  content: "";
  position: absolute;
  width: 45px;
  height: 45px;
  border: 1px solid var(--purple);
  opacity: 0.6;
  display: var(--corner-display);
}
.poem::before { top: 10px; left: 10px;  border-right: none; border-bottom: none; }
.poem::after  { bottom: 10px; right: 10px; border-left: none; border-top: none; }

.poem.fading { opacity: 0; }

.poem-loader {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 240px;
  font-family: var(--font-display);
  font-size: 3rem;
  color: var(--muted);
  animation: spin 4s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Poem typography (rendered from markdown) */
.poem h1 {
  font-family: var(--font-display);
  font-size: var(--fs-poem-title);
  text-transform: var(--title-transform);
  font-weight: 400;
  letter-spacing: 2px;
  line-height: 1;
  color: var(--cyan);
  margin: 0 0 0.25em;
  text-shadow: var(--poem-title-glow);
}

.poem .author,
.poem h1 + p em,
.poem h1 + p {
  display: block;
  font-style: italic;
  font-size: var(--fs-poem-author);
  letter-spacing: 1.5px;
  color: var(--pink);
  margin: 0 0 clamp(1.25rem, 3vw, 2rem);
}

.poem .body,
.poem p {
  font-size: var(--fs-poem-body);
  letter-spacing: 1px;
  color: var(--fg);
  line-height: 1.75;
  margin: 0 0 1em;
  white-space: normal;
}

.poem .body {
  white-space: pre-wrap;     /* preserve hard line breaks for poetry */
}

.poem em { color: var(--yellow); font-style: italic; }
.poem strong { color: var(--orange); font-weight: 400; }

/* Links inside the poem body */
.poem a {
  color: var(--green);
  text-decoration: none;
  border-bottom: 1px solid rgba(80, 250, 123, 0.35);
  transition: color 0.2s ease, border-color 0.2s ease;
}
.poem a:hover,
.poem a:focus-visible {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
  outline: none;
}
 
/* Links inside the author line stay in the pink/purple author family
   so they don't compete with body links. */
.poem .author a {
  color: var(--pink);
  border-bottom-color: rgba(255, 121, 198, 0.35);
}
.poem .author a:hover,
.poem .author a:focus-visible {
  color: var(--purple);
  border-bottom-color: var(--purple);
}

blockquote {
  background: var(--bg-soft);
  border-left: 10px solid var(--muted);
  padding: 0.5em 20px;
}
blockquote:before {
  color: var(--muted);
  content: "©";
  font-size: 2em;
  line-height: 0.1em;
  margin-right: 0.25em;
  vertical-align: -0.1em;
}
blockquote p {
  font-size: var(--blockquote) !important;
  color: var(--pink) !important;
}

/* Decorative divider between title block and body */
.poem hr,
.poem .divider {
  border: none;
  text-align: left;
  margin: clamp(1rem, 3vw, 1.75rem) 0;
  color: var(--muted);
  overflow: visible;
}
.poem hr::before,
.poem .divider::before {
  content: var(--divider-content);  /* decorative divider, varies by theme */
  font-size: 1.25rem;
  letter-spacing: 0.5em;
}

/* ======================= CONTROLS ====================== */

.controls {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(0.5rem, 1.5vw, 1rem);
}

.btn {
  font-family: var(--font-ui);
  font-weight: 400;
  font-size: var(--fs-btn);
  letter-spacing: 2px;
  text-transform: var(--btn-transform);
  color: var(--fg);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: var(--btn-radius);
  padding: 0.75em 1.5em;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--purple);
  color: var(--purple);
  background: rgba(189, 147, 249, 0.08);
  outline: none;
  transform: translateY(-1px);
}

.btn:active { transform: translateY(0); }

.btn-primary {
  border-color: var(--pink);
  color: var(--pink);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  background: rgba(255, 121, 198, 0.12);
  border-color: var(--pink);
  color: var(--pink);
  box-shadow: 0 0 24px -6px rgba(255, 121, 198, 0.4);
}

.btn-glyph {
  font-size: 1.1em;
  line-height: 1;
}

.btn-label { line-height: 1; }

/* ======================= TOAST ======================== */

.toast {
  position: fixed;
  left: 50%;
  bottom: clamp(1.5rem, 5vw, 3rem);
  transform: translateX(-50%) translateY(20px);
  background: var(--bg-soft);
  border: 1px solid var(--green);
  color: var(--green);
  padding: 0.65em 1.25em;
  border-radius: 2px;
  font-size: 0.9rem;
  letter-spacing: 2px;
  text-transform: lowercase;
  font-style: italic;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease, transform 0.3s ease;
  z-index: 50;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
}

.toast.visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.error {
  border-color: var(--red);
  color: var(--red);
}

/* ======================= FOOTER ======================== */

.site-footer {
  position: relative;
  z-index: 2;
  width: 100%;
  text-align: center;
  margin-top: clamp(2rem, 5vw, 4rem);
  padding-block: 1rem;
  color: var(--muted);
  font-size: var(--fs-footer);
  font-style: italic;
  letter-spacing: 2px;
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.25em;
}

/* ======================= MOTION ======================== */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* Selection */
::selection {
  background: var(--purple);
  color: var(--bg);
}

/* Mobile tweaks */
@media (max-width: 480px) {
  .controls { flex-direction: column; align-items: stretch; }
  .btn { justify-content: center; }
}