/* ==============================
   ROOT & DESIGN TOKENS
   ============================== */
:root {
  --void:        #080810;
  --abyss:       #0d0d1a;
  --night:       #111128;
  --navy:        #141435;
  --midnight:    #1a1a4a;
  --chess-dark:  #b58863;
  --chess-light: #f0d9b5;
  --gold:        #d4af37;
  --gold-pale:   #f0d080;
  --gold-deep:   #9a7b1c;
  --crimson:     #c41e3a;
  --crimson-pale:#e84a6a;
  --emerald:     #1e6b3c;
  --emerald-pale:#2a9a5a;
  --amethyst:    #6b2fa0;
  --amethyst-pale:#9b5fd0;
  --ivory:       #faf5e8;
  --parchment:   #f0e8cc;
  --text-main:   #e8e0cc;
  --text-dim:    #a09880;
  --text-bright: #fff9ee;
  --border-gold: rgba(212,175,55,0.35);
  --border-gold-strong: rgba(212,175,55,0.7);
  --glow-gold:   rgba(212,175,55,0.15);
  --shadow-deep: 0 20px 60px rgba(0,0,0,0.8);
  --shadow-gold: 0 0 40px rgba(212,175,55,0.2);
  --section-pad: 5rem 2rem;
  --max-w:       920px;
  --radius:      8px;
}

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

html { scroll-behavior: smooth; font-size: 17px; }

body {
  background: var(--void);
  color: var(--text-main);
  font-family: 'Crimson Pro', Georgia, serif;
  font-weight: 300;
  line-height: 1.8;
  overflow-x: hidden;
}

::selection { background: var(--gold); color: var(--void); }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--abyss); }
::-webkit-scrollbar-thumb { background: var(--gold-deep); border-radius: 4px; }

/* ==============================
   CANVAS HERO
   ============================== */
#hero-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.18;
}

/* ==============================
   HERO SECTION
   ============================== */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 2rem;
  overflow: hidden;
  z-index: 1;
  background: radial-gradient(ellipse at 50% 40%, #1a1a4a 0%, #0a0a16 60%, #080810 100%);
}

.hero-board {
  position: absolute;
  inset: 0;
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  grid-template-rows: repeat(8, 1fr);
  opacity: 0.07;
  pointer-events: none;
}

.hero-board-cell {
  transition: opacity 3s;
}
.hero-board-cell.light { background: var(--chess-light); }
.hero-board-cell.dark  { background: var(--chess-dark);  }

.hero-eyebrow {
  font-family: 'Cinzel', serif;
  font-size: 0.7rem;
  letter-spacing: 0.5em;
  text-transform: uppercase;
  color: var(--chess-dark);
  margin-bottom: 1.5rem;
  position: relative; z-index: 2;
}

.hero-title {
  font-family: 'Cinzel Decorative', serif;
  font-size: clamp(2.4rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.1;
  background: linear-gradient(135deg, var(--gold-pale) 0%, var(--gold) 40%, var(--chess-dark) 80%, var(--gold-pale) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 0.6rem;
  position: relative; z-index: 2;
  text-shadow: none;
  filter: drop-shadow(0 0 40px rgba(212,175,55,0.5));
}

.hero-piece-row {
  font-size: clamp(1.8rem, 4vw, 3rem);
  letter-spacing: 0.3em;
  margin: 0.8rem 0;
  position: relative; z-index: 2;
  color: var(--gold);
  opacity: 0.8;
}

.hero-subtitle {
  font-family: 'Cinzel', serif;
  font-size: clamp(0.75rem, 2vw, 1.05rem);
  letter-spacing: 0.18em;
  color: var(--chess-light);
  opacity: 0.7;
  margin-bottom: 2.5rem;
  position: relative; z-index: 2;
}

.hero-quote {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  color: var(--chess-light);
  opacity: 0.75;
  max-width: 600px;
  margin: 0 auto 0.5rem;
  position: relative; z-index: 2;
  line-height: 1.6;
}

.hero-quote-attr {
  font-family: 'Cinzel', serif;
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  color: var(--gold);
  opacity: 0.6;
  position: relative; z-index: 2;
}

.hero-scroll-hint {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  color: var(--gold);
  opacity: 0.5;
  z-index: 2;
  animation: bounce 2s ease-in-out infinite;
}

.hero-scroll-hint::after {
  content: '▼';
  display: block;
  text-align: center;
  margin-top: 0.3rem;
  font-size: 0.9rem;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ==============================
   HOME BUTTON
   ============================== */
#homeLink {
  position: fixed;
  top: 14px;
  left: 16px;
  z-index: 9999;
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  color: rgba(212,175,55,0.85);
  background: rgba(6,6,18,0.88);
  border: 1px solid rgba(212,175,55,0.32);
  border-radius: 3px;
  padding: 0.32rem 0.85rem;
  transition: all 0.2s;
  box-shadow: 0 2px 14px rgba(0,0,0,0.6);
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
#homeLink:hover {
  color: var(--gold);
  border-color: rgba(212,175,55,0.6);
  background: rgba(12,12,28,0.95);
  box-shadow: 0 0 20px rgba(212,175,55,0.18);
}

/* ==============================
   AUTH HEADER (top-right)
   ============================== */
#authHeader {
  position: fixed;
  top: 14px;
  right: 16px;
  z-index: 9999;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
#loginBtn {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(212,175,55,0.85);
  background: rgba(6,6,18,0.88);
  border: 1px solid rgba(212,175,55,0.32);
  border-radius: 3px;
  padding: 0.32rem 0.9rem;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.2s;
  box-shadow: 0 2px 14px rgba(0,0,0,0.6);
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
#loginBtn:hover {
  color: var(--gold);
  border-color: rgba(212,175,55,0.6);
  background: rgba(12,12,28,0.95);
  box-shadow: 0 0 20px rgba(212,175,55,0.18);
}
#userInfo { display: flex; align-items: center; gap: 0.5rem; }
#userEmailDisplay {
  font-family: 'Cinzel', serif;
  font-size: 0.58rem;
  color: rgba(212,175,55,0.75);
  background: rgba(6,6,18,0.88);
  border: 1px solid rgba(212,175,55,0.25);
  border-radius: 3px;
  padding: 0.28rem 0.8rem;
  max-width: 130px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  letter-spacing: 0.06em;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
#signOutBtn {
  font-family: 'Cinzel', serif;
  font-size: 0.58rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(212,175,55,0.7);
  background: rgba(6,6,18,0.88);
  border: 1px solid rgba(212,175,55,0.25);
  border-radius: 3px;
  padding: 0.28rem 0.8rem;
  cursor: pointer;
  transition: all 0.2s;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
#signOutBtn:hover { color: var(--gold); border-color: rgba(212,175,55,0.5); background: rgba(12,12,28,0.95); }

/* ==============================
   HAMBURGER / CONTENTS BUTTON
   ============================== */
#contentsBtn {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(212,175,55,0.85);
  background: rgba(6,6,18,0.88);
  border: 1px solid rgba(212,175,55,0.32);
  border-radius: 3px;
  padding: 0.32rem 0.85rem;
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  user-select: none;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 2px 14px rgba(0,0,0,0.6);
}
#contentsBtn:hover,
#contentsBtn.open {
  color: var(--gold);
  border-color: rgba(212,175,55,0.6);
  background: rgba(12,12,28,0.95);
  box-shadow: 0 0 20px rgba(212,175,55,0.15);
}
#contentsBtn .hb-icon {
  display: flex;
  flex-direction: column;
  gap: 3px;
  width: 13px;
}
#contentsBtn .hb-icon span {
  display: block;
  height: 1.5px;
  background: currentColor;
  border-radius: 2px;
  transition: all 0.25s;
}
#contentsBtn.open .hb-icon span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
#contentsBtn.open .hb-icon span:nth-child(2) { opacity: 0; transform: scaleX(0); }
#contentsBtn.open .hb-icon span:nth-child(3) { transform: translateY(-4.5px) rotate(-45deg); }

/* ==============================
   DROPDOWN PANEL
   ============================== */
#navDropdown {
  position: fixed;
  top: 50px;
  right: 16px;
  z-index: 9998;
  width: 290px;
  max-height: 55vh;
  overflow-y: auto;
  background: rgba(8,8,20,0.97);
  border: 1px solid rgba(212,175,55,0.3);
  border-radius: 6px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.8), 0 0 40px rgba(212,175,55,0.08);
  backdrop-filter: blur(20px);
  padding: 0;
  transform-origin: top right;
  transform: scale(0.94) translateY(-8px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
  scrollbar-width: thin;
  scrollbar-color: rgba(212,175,55,0.3) transparent;
}
#navDropdown::-webkit-scrollbar { width: 4px; }
#navDropdown::-webkit-scrollbar-track { background: transparent; }
#navDropdown::-webkit-scrollbar-thumb { background: rgba(212,175,55,0.3); border-radius: 2px; }
#navDropdown.open {
  opacity: 1;
  transform: scale(1) translateY(0);
  pointer-events: all;
}
.nav-drop-header {
  font-family: 'Cinzel Decorative', serif;
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  color: var(--gold);
  opacity: 0.6;
  padding: 0 1.2rem 0.7rem;
  border-bottom: 1px solid rgba(212,175,55,0.12);
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}
.nav-drop-section {
  padding: 0.25rem 0;
}
.nav-drop-section-label {
  font-family: 'Cinzel', serif;
  font-size: 0.52rem;
  letter-spacing: 0.3em;
  color: rgba(181,136,99,0.5);
  text-transform: uppercase;
  padding: 0.5rem 1.2rem 0.2rem;
}
#navDropdown a {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.42rem 1.2rem;
  font-family: 'Cinzel', serif;
  font-size: 0.65rem;
  letter-spacing: 0.06em;
  color: rgba(240,217,181,0.65);
  text-decoration: none;
  transition: all 0.15s;
  border-left: 2px solid transparent;
}
#navDropdown a:hover {
  color: var(--gold);
  background: rgba(212,175,55,0.06);
  border-left-color: var(--gold);
}
#navDropdown a .nav-num {
  font-family: 'Cinzel Decorative', serif;
  font-size: 0.55rem;
  color: rgba(212,175,55,0.35);
  min-width: 28px;
  text-align: right;
}
#navDropdown a.nav-special {
  color: var(--gold);
  opacity: 0.8;
  font-size: 0.68rem;
}
#navDropdown a.nav-special:hover { opacity: 1; }

/* Overlay to close dropdown */
#navOverlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 9997;
}
#navOverlay.open { display: block; }

/* ==============================
   PAGE VIEW SYSTEM (History / Puzzles)
   ============================== */

/* ==============================
   READING PROGRESS BAR
   ============================== */
#read-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--gold-deep), var(--gold), var(--gold-pale));
  z-index: 10001;
  transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(212,175,55,0.5);
}

/* ==============================
   BACK-TO-TOP & PAGE-DOWN BUTTONS
   ============================== */
#backToTop, #pageDown {
  position: fixed;
  right: 1.5rem;
  z-index: 8000;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(212,175,55,0.4);
  background: rgba(8,8,20,0.92);
  color: var(--gold);
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(12px);
  box-shadow: 0 4px 20px rgba(0,0,0,0.6), 0 0 12px rgba(212,175,55,0.1);
  transition: opacity 0.3s, transform 0.3s, background 0.2s, box-shadow 0.2s;
}
#backToTop {
  bottom: 2rem;
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
}
#backToTop.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}
#pageDown {
  bottom: 5.5rem;
  opacity: 1;
  transform: translateY(0);
  pointer-events: all;
}
#pageDown.hidden-btn {
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
}
#backToTop:hover, #pageDown:hover {
  background: rgba(212,175,55,0.15);
  box-shadow: 0 4px 24px rgba(0,0,0,0.8), 0 0 20px rgba(212,175,55,0.25);
}

/* ==============================
   NAV SEARCH INPUT
   ============================== */
#navSearch::placeholder { color: rgba(212,175,55,0.3); }

/* ==============================
   YEAR TIMELINE SLIDER
   ============================== */
#year-timeline {
  position: sticky;
  top: 0;
  z-index: 900;
  background: rgba(8,8,20,0.95);
  border-bottom: 1px solid rgba(212,175,55,0.2);
  padding: 0.55rem 1.5rem 0.4rem;
  backdrop-filter: blur(12px);
  overflow-x: auto;
  scrollbar-width: none;
}
#year-timeline::-webkit-scrollbar { display: none; }
.timeline-track {
  display: flex;
  align-items: center;
  gap: 0;
  min-width: max-content;
  margin: 0 auto;
  max-width: 860px;
  position: relative;
}
.timeline-track::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,175,55,0.3), transparent);
  transform: translateY(-50%);
  pointer-events: none;
}
.tl-stop {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  cursor: pointer;
  padding: 0 0.1rem;
  position: relative;
}
.tl-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: rgba(212,175,55,0.35);
  border: 1px solid rgba(212,175,55,0.5);
  margin-bottom: 0.25rem;
  transition: all 0.2s;
  flex-shrink: 0;
}
.tl-stop:hover .tl-dot,
.tl-stop.active .tl-dot {
  background: var(--gold);
  box-shadow: 0 0 8px rgba(212,175,55,0.6);
  transform: scale(1.4);
}
.tl-year {
  font-family: 'Cinzel', serif;
  font-size: 0.45rem;
  letter-spacing: 0.04em;
  color: rgba(212,175,55,0.45);
  text-align: center;
  line-height: 1.1;
  white-space: nowrap;
  transition: color 0.2s;
  max-width: 44px;
}
.tl-stop:hover .tl-year,
.tl-stop.active .tl-year {
  color: var(--gold);
}
.tl-era {
  font-family: 'Cinzel', serif;
  font-size: 0.38rem;
  color: rgba(212,175,55,0.28);
  text-align: center;
  line-height: 1;
  white-space: nowrap;
  max-width: 44px;
  overflow: hidden;
  text-overflow: ellipsis;
}
.tl-stop.active .tl-era { color: rgba(212,175,55,0.6); }

/* ==============================
   READER NOTE
   ============================== */
#reader-note {
  background: linear-gradient(135deg, #1a1a3a, #111128);
  border: 1px solid var(--border-gold);
  border-left: 4px solid var(--gold);
  padding: 2.5rem 3rem;
  margin: 3rem auto;
  max-width: var(--max-w);
  border-radius: var(--radius);
  box-shadow: var(--shadow-deep), var(--shadow-gold);
  position: relative;
}

#reader-note::before {
  content: '✦';
  position: absolute;
  top: -0.6rem;
  left: 2rem;
  color: var(--gold);
  font-size: 1.2rem;
  background: var(--abyss);
  padding: 0 0.5rem;
}

#reader-note h3 {
  font-family: 'Cinzel', serif;
  font-size: 0.75rem;
  letter-spacing: 0.4em;
  color: var(--gold);
  margin-bottom: 1rem;
  text-transform: uppercase;
}

/* ==============================
   SECTION WRAPPERS & PARTS
   ============================== */
.part-wrapper {
  position: relative;
  overflow: hidden;
}

/* Era color themes */
.era-ancient    { --era-accent: #d4af37; --era-glow: rgba(212,175,55,0.1); --era-bg: linear-gradient(180deg, #1a1610 0%, #0d0d0a 100%); }
.era-islamic    { --era-accent: #c44a00; --era-glow: rgba(196,74,0,0.1);   --era-bg: linear-gradient(180deg, #1a1008 0%, #0d0907 100%); }
.era-medieval   { --era-accent: #8b4513; --era-glow: rgba(139,69,19,0.1);  --era-bg: linear-gradient(180deg, #150f08 0%, #0d0a06 100%); }
.era-renaissance{ --era-accent: #6b4a8a; --era-glow: rgba(107,74,138,0.1); --era-bg: linear-gradient(180deg, #130d1a 0%, #0d0912 100%); }
.era-enlighten  { --era-accent: #2a6b9a; --era-glow: rgba(42,107,154,0.1); --era-bg: linear-gradient(180deg, #0d1520 0%, #08101a 100%); }
.era-romantic   { --era-accent: #c41e3a; --era-glow: rgba(196,30,58,0.1);  --era-bg: linear-gradient(180deg, #1a0810 0%, #0d0609 100%); }
.era-classical  { --era-accent: #1e6b3c; --era-glow: rgba(30,107,60,0.1);  --era-bg: linear-gradient(180deg, #081510 0%, #060d09 100%); }
.era-hypermod   { --era-accent: #3a7ab5; --era-glow: rgba(58,122,181,0.1); --era-bg: linear-gradient(180deg, #0a1525 0%, #080f1a 100%); }
.era-soviet     { --era-accent: #c0392b; --era-glow: rgba(192,57,43,0.12); --era-bg: linear-gradient(180deg, #1a0c08 0%, #100808 100%); }
.era-computer   { --era-accent: #00b4d8; --era-glow: rgba(0,180,216,0.1);  --era-bg: linear-gradient(180deg, #041520 0%, #030d18 100%); }
.era-modern     { --era-accent: #9b59b6; --era-glow: rgba(155,89,182,0.1); --era-bg: linear-gradient(180deg, #0f0820 0%, #090615 100%); }
.era-ai         { --era-accent: #00ffc8; --era-glow: rgba(0,255,200,0.08); --era-bg: linear-gradient(180deg, #030f12 0%, #020a0e 100%); }

.part-section {
  background: var(--era-bg, linear-gradient(180deg, #111128, #0d0d1a));
  padding: var(--section-pad);
  position: relative;
}

.part-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--era-accent, var(--gold)), transparent);
}

.part-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--era-glow, rgba(212,175,55,0.05));
  pointer-events: none;
}

.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

/* ==============================
   PART HEADERS
   ============================== */
.part-banner {
  text-align: center;
  margin-bottom: 3.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border-gold);
  position: relative;
}

.part-number {
  font-family: 'Cinzel', serif;
  font-size: 0.65rem;
  letter-spacing: 0.6em;
  color: var(--era-accent, var(--gold));
  opacity: 0.8;
  text-transform: uppercase;
  display: block;
  margin-bottom: 0.8rem;
}

.part-title {
  font-family: 'Cinzel', serif;
  font-size: clamp(1.6rem, 4vw, 2.8rem);
  font-weight: 700;
  color: var(--chess-light);
  line-height: 1.2;
  margin-bottom: 0.6rem;
}

.part-title .accent { color: var(--era-accent, var(--gold)); }

.part-dates {
  font-family: 'Cinzel', serif;
  font-size: 0.75rem;
  letter-spacing: 0.25em;
  color: var(--text-dim);
}

.part-icon {
  font-size: 3rem;
  display: block;
  margin-bottom: 1rem;
  opacity: 0.7;
}

/* ==============================
   HEADINGS WITHIN SECTIONS
   ============================== */
.section-inner h2 {
  font-family: 'Cinzel', serif;
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  font-weight: 600;
  color: var(--era-accent, var(--gold));
  margin: 3rem 0 1.2rem;
  padding-left: 1rem;
  border-left: 3px solid var(--era-accent, var(--gold));
  line-height: 1.3;
}

.section-inner h3 {
  font-family: 'Cinzel', serif;
  font-size: clamp(1rem, 2.5vw, 1.3rem);
  font-weight: 600;
  color: var(--chess-light);
  margin: 2.2rem 0 0.9rem;
}

.section-inner h4 {
  font-family: 'Cinzel', serif;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--chess-dark);
  margin: 1.5rem 0 0.7rem;
  letter-spacing: 0.05em;
}

.section-inner p {
  margin-bottom: 1.2rem;
  font-size: 1rem;
  color: var(--text-main);
}

/* ==============================
   LISTS
   ============================== */
.section-inner ul, .section-inner ol {
  margin: 0.8rem 0 1.4rem 1.5rem;
}

.section-inner li {
  margin-bottom: 0.5rem;
  color: var(--text-main);
}

.section-inner li strong, .section-inner p strong {
  color: var(--chess-light);
  font-weight: 600;
}

.section-inner em { color: var(--chess-dark); font-style: italic; }

/* ==============================
   BLOCKQUOTES
   ============================== */
blockquote {
  margin: 2rem 0;
  padding: 1.5rem 2rem;
  background: rgba(0,0,0,0.3);
  border-left: 3px solid var(--era-accent, var(--gold));
  border-radius: 0 var(--radius) var(--radius) 0;
  position: relative;
}

blockquote::before {
  content: '"';
  position: absolute;
  top: -0.5rem;
  left: 1rem;
  font-family: 'Playfair Display', serif;
  font-size: 4rem;
  color: var(--era-accent, var(--gold));
  opacity: 0.3;
  line-height: 1;
}

blockquote p {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  font-size: 1.1rem;
  color: var(--chess-light);
  margin-bottom: 0.5rem;
}

blockquote cite {
  font-family: 'Cinzel', serif;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--era-accent, var(--gold));
  opacity: 0.8;
  font-style: normal;
}

/* ==============================
   TABLES
   ============================== */
.table-wrap {
  overflow-x: auto;
  margin: 2rem 0;
  border-radius: var(--radius);
  box-shadow: var(--shadow-deep);
  border: 1px solid var(--border-gold);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

thead th {
  background: linear-gradient(135deg, var(--midnight), var(--navy));
  color: var(--gold);
  font-family: 'Cinzel', serif;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.9rem 1.1rem;
  text-align: left;
  border-bottom: 1px solid var(--border-gold-strong);
}

tbody td {
  padding: 0.75rem 1.1rem;
  border-bottom: 1px solid rgba(212,175,55,0.08);
  color: var(--text-main);
  vertical-align: top;
  line-height: 1.5;
}

tbody tr:nth-child(even) { background: rgba(255,255,255,0.03); }
tbody tr:hover { background: var(--glow-gold); }

/* ==============================
   PLAYER PROFILE CARDS
   ============================== */
.player-card {
  background: linear-gradient(135deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  padding: 2rem 2.2rem;
  margin: 2.5rem 0;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.player-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-deep), var(--shadow-gold);
}

.player-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--era-accent, var(--gold)), transparent);
}

.player-card-crown {
  position: absolute;
  top: 1.2rem;
  right: 1.5rem;
  font-size: 2.5rem;
  opacity: 0.12;
}

.player-card h3 {
  font-family: 'Cinzel', serif;
  font-size: 1.4rem;
  color: var(--era-accent, var(--gold));
  margin-bottom: 0.2rem;
}

.player-card .player-dates {
  font-family: 'Cinzel', serif;
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  margin-bottom: 1.2rem;
}

.player-epithet {
  font-family: 'Playfair Display', serif;
  font-style: italic;
  color: var(--chess-dark);
  font-size: 1rem;
  margin-bottom: 1rem;
}

.stat-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.stat-chip {
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border-gold);
  border-radius: 20px;
  padding: 0.2rem 0.8rem;
  font-family: 'Cinzel', serif;
  font-size: 0.65rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}

/* ==============================
   NOTATION BLOCKS
   ============================== */
.notation-block {
  background: #0a0a14;
  border: 1px solid rgba(181,136,99,0.3);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
  font-family: 'Courier New', monospace;
  font-size: 0.82rem;
  color: var(--chess-dark);
  line-height: 1.8;
  overflow-x: auto;
  position: relative;
}

.notation-block::before {
  content: 'GAME NOTATION';
  position: absolute;
  top: 0.5rem;
  right: 1rem;
  font-family: 'Cinzel', serif;
  font-size: 0.55rem;
  letter-spacing: 0.2em;
  color: var(--gold);
  opacity: 0.5;
}

.notation-block .key-move {
  color: var(--gold);
  font-weight: bold;
}

/* ==============================
   CHESS BOARD DISPLAY
   ============================== */
.chess-diagram {
  background: #0a0a14;
  border: 2px solid rgba(181,136,99,0.4);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin: 1.5rem 0;
  font-family: 'Courier New', monospace;
  font-size: 0.78rem;
  color: var(--chess-light);
  line-height: 1.6;
  overflow-x: auto;
}

.chess-diagram .rank { display: block; }
.chess-diagram .file-labels { color: var(--gold); letter-spacing: 0.8em; padding-left: 1.5em; opacity: 0.7; }

/* ==============================
   ERA DIVIDER
   ============================== */
.era-divider {
  text-align: center;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
}

.era-divider::before, .era-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 40%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--era-accent, var(--gold)));
}

.era-divider::before { left: 0; }
.era-divider::after  { right: 0; transform: scaleX(-1); }

.era-divider span {
  font-size: 1.4rem;
  opacity: 0.5;
  position: relative; z-index: 1;
}

/* ==============================
   CALLOUT BOXES
   ============================== */
.callout {
  border-radius: var(--radius);
  padding: 1.5rem 1.8rem;
  margin: 1.8rem 0;
  position: relative;
  border: 1px solid;
}

.callout-fact {
  background: rgba(212,175,55,0.06);
  border-color: rgba(212,175,55,0.3);
}

.callout-drama {
  background: rgba(196,30,58,0.08);
  border-color: rgba(196,30,58,0.3);
}

.callout-insight {
  background: rgba(30,107,60,0.08);
  border-color: rgba(30,107,60,0.3);
}

.callout-legend {
  background: rgba(107,74,138,0.08);
  border-color: rgba(107,74,138,0.3);
}

.callout-tech {
  background: rgba(0,180,216,0.06);
  border-color: rgba(0,180,216,0.3);
}

.callout-label {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.4em;
  text-transform: uppercase;
  margin-bottom: 0.7rem;
  display: block;
}

.callout-fact    .callout-label { color: var(--gold); }
.callout-drama   .callout-label { color: var(--crimson-pale); }
.callout-insight .callout-label { color: var(--emerald-pale); }
.callout-legend  .callout-label { color: var(--amethyst-pale); }
.callout-tech    .callout-label { color: #00b4d8; }

/* ==============================
   PUZZLE CARDS
   ============================== */
.puzzle-card {
  background: linear-gradient(135deg, #0f0820, #080614);
  border: 1px solid rgba(155,89,182,0.35);
  border-radius: var(--radius);
  padding: 2.5rem;
  margin: 3rem 0;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.7), 0 0 40px rgba(155,89,182,0.1);
}

.puzzle-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--amethyst), var(--gold), var(--amethyst));
}

.puzzle-number {
  font-family: 'Cinzel Decorative', serif;
  font-size: 0.65rem;
  letter-spacing: 0.5em;
  color: var(--amethyst-pale);
  margin-bottom: 0.5rem;
  display: block;
}

.puzzle-title {
  font-family: 'Cinzel', serif;
  font-size: 1.4rem;
  color: var(--gold);
  margin-bottom: 0.3rem;
}

.puzzle-meta {
  font-family: 'Cinzel', serif;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  margin-bottom: 1.5rem;
}

.difficulty-stars { color: var(--gold); }

.puzzle-position {
  background: #06040f;
  border: 1px solid rgba(155,89,182,0.25);
  border-radius: 4px;
  padding: 1.2rem 1.5rem;
  margin: 1.2rem 0;
  font-size: 0.85rem;
  color: var(--chess-light);
}

.puzzle-position strong { color: var(--amethyst-pale); }

.solution-block {
  background: #03020a;
  border: 1px solid rgba(212,175,55,0.2);
  border-radius: 4px;
  padding: 1.2rem 1.5rem;
  margin: 1.2rem 0;
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  color: var(--chess-dark);
  line-height: 1.9;
  overflow-x: auto;
}

.solution-block .winning-move { color: var(--gold); font-weight: bold; }

/* ==============================
   CHAMPIONS GALLERY
   ============================== */
#champions {
  background: linear-gradient(180deg, #0a0616 0%, #06040f 100%);
  padding: 3rem 2rem 2rem;
  position: relative;
}

#champions::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

.champions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
  margin-top: 2rem;
}

.champion-tile {
  background: linear-gradient(135deg, rgba(212,175,55,0.07), rgba(181,136,99,0.04));
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: all 0.3s;
}

.champion-tile:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(212,175,55,0.2);
  border-color: var(--gold);
}

.champion-tile::before {
  content: '♔';
  position: absolute;
  bottom: -0.5rem;
  right: 0.5rem;
  font-size: 5rem;
  opacity: 0.04;
  color: var(--gold);
}

.champion-num {
  font-family: 'Cinzel Decorative', serif;
  font-size: 2rem;
  color: var(--gold-deep);
  opacity: 0.5;
  line-height: 1;
  margin-bottom: 0.3rem;
}

.champion-name {
  font-family: 'Cinzel', serif;
  font-size: 1rem;
  color: var(--gold);
  margin-bottom: 0.1rem;
}

.champion-country {
  font-family: 'Cinzel', serif;
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  color: var(--text-dim);
  margin-bottom: 0.6rem;
  text-transform: uppercase;
}

.champion-reign {
  font-family: 'Crimson Pro', serif;
  font-size: 0.85rem;
  color: var(--chess-dark);
}

.champion-note {
  font-family: 'Crimson Pro', serif;
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 0.4rem;
  font-style: italic;
}

/* ==============================
   STAT BOX STRIP
   ============================== */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 1px;
  background: var(--border-gold);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  overflow: hidden;
  margin: 2rem 0;
}

.stat-box {
  background: rgba(8,8,16,0.9);
  padding: 1.5rem;
  text-align: center;
}

.stat-box .num {
  font-family: 'Cinzel Decorative', serif;
  font-size: 2.2rem;
  color: var(--era-accent, var(--gold));
  line-height: 1;
  display: block;
}

.stat-box .label {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-top: 0.3rem;
  display: block;
}

/* ==============================
   TIMELINE ELEMENT
   ============================== */
.timeline {
  position: relative;
  padding-left: 2rem;
  margin: 2rem 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0.6rem;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--era-accent, var(--gold)), transparent);
}

.timeline-item {
  position: relative;
  margin-bottom: 1.5rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -1.7rem;
  top: 0.4rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--era-accent, var(--gold));
  box-shadow: 0 0 8px var(--era-accent, var(--gold));
}

.timeline-year {
  font-family: 'Cinzel', serif;
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  color: var(--era-accent, var(--gold));
  margin-bottom: 0.2rem;
}

/* ==============================
   FOOTER
   ============================== */
#footer {
  background: var(--void);
  border-top: 1px solid var(--border-gold);
  padding: 3rem 2rem;
  text-align: center;
}

.footer-piece-row {
  font-size: 2rem;
  letter-spacing: 0.5em;
  color: var(--gold);
  opacity: 0.3;
  margin-bottom: 1rem;
}

.footer-title {
  font-family: 'Cinzel Decorative', serif;
  font-size: 1rem;
  color: var(--gold);
  opacity: 0.5;
  margin-bottom: 0.5rem;
}

.footer-text {
  font-family: 'Cinzel', serif;
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  opacity: 0.6;
  line-height: 2;
}

/* ==============================
   SCROLL ANIMATIONS
   ============================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: none;
}

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 640px) {
  :root { --section-pad: 3rem 1.2rem; }
  .player-card { padding: 1.4rem; }
  .puzzle-card { padding: 1.5rem; }
  .champions-grid { grid-template-columns: 1fr 1fr; }
  .notation-block, .solution-block { font-size: 0.72rem; }
}

/* ==============================
   MOBILE NAV — PREVENT HOME/CONTENTS OVERLAP
   ============================== */
@media (max-width: 480px) {
  #homeLink {
    font-size: 0.52rem;
    padding: 0.25rem 0.6rem;
    letter-spacing: 0.08em;
  }
  #authHeader { gap: 0.3rem; }
  #contentsBtn {
    font-size: 0.52rem;
    padding: 0.25rem 0.62rem;
    letter-spacing: 0.08em;
    gap: 0.3rem;
  }
  #loginBtn {
    font-size: 0.52rem;
    padding: 0.25rem 0.62rem;
  }
  #signOutBtn {
    font-size: 0.5rem;
    padding: 0.22rem 0.55rem;
  }
  #userEmailDisplay {
    max-width: 80px;
    font-size: 0.5rem;
    padding: 0.22rem 0.6rem;
  }
}

@media (max-width: 360px) {
  /* On very small screens, compress further and hide login text */
  #homeLink {
    font-size: 0.48rem;
    padding: 0.22rem 0.45rem;
    letter-spacing: 0.06em;
  }
  #contentsBtn {
    font-size: 0.48rem;
    padding: 0.22rem 0.5rem;
    letter-spacing: 0.06em;
  }
  #loginBtn { display: none; }
  #navDropdown { width: 260px; right: 8px; }
}

/* ==============================
   PIECE ANIMATION KEYFRAMES
   ============================== */
@keyframes float-piece {
  0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.6; }
  33% { transform: translateY(-12px) rotate(3deg); }
  66% { transform: translateY(-6px) rotate(-2deg); }
}

@keyframes shimmer {
  0%   { background-position: -200% center; }
  100% { background-position:  200% center; }
}

.gold-shimmer {
  background: linear-gradient(90deg, var(--gold-deep), var(--gold), var(--gold-pale), var(--gold), var(--gold-deep));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
}


/* ==============================
   COMMENT SECTION
   ============================== */
#commentSection {
  padding: 4rem 2rem 2rem;
  border-top: 1px solid rgba(212,175,55,0.12);
  position: relative;
}
#commentSection::before {
  content: '';
  position: absolute;
  top: 0; left: 10%; right: 10%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,175,55,0.4), transparent);
}
.comment-section-inner { max-width: var(--max-w); margin: 0 auto; }
.comment-heading {
  font-family: 'Cinzel', serif;
  font-size: clamp(1rem, 2.5vw, 1.4rem);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 1.8rem;
}
.comment-login-msg {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1.2rem 1.5rem;
  background: rgba(212,175,55,0.03);
  border: 1px solid rgba(212,175,55,0.18);
  border-radius: 6px;
  margin-bottom: 1.2rem;
}
.comment-login-msg span {
  font-family: 'Crimson Pro', serif;
  font-style: italic;
  color: var(--text-dim);
  font-size: 1rem;
}
.comment-signin-btn {
  font-family: 'Cinzel', serif;
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--void);
  background: var(--gold);
  border: none;
  border-radius: 3px;
  padding: 0.4rem 1rem;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s;
  white-space: nowrap;
}
.comment-signin-btn:hover { background: var(--gold-pale); }
.comment-form textarea {
  width: 100%;
  background: rgba(8,8,20,0.8);
  border: 1px solid rgba(212,175,55,0.22);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  color: var(--text-main);
  font-family: 'Crimson Pro', serif;
  font-size: 1rem;
  line-height: 1.6;
  resize: vertical;
  min-height: 100px;
  outline: none;
  transition: border-color 0.2s;
}
.comment-form textarea:focus { border-color: rgba(212,175,55,0.5); }
.comment-form textarea::placeholder { color: var(--text-dim); opacity: 0.55; }
.comment-form-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.65rem;
}
.comment-char-count {
  font-family: 'Cinzel', serif;
  font-size: 0.55rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  opacity: 0.55;
}
.comment-submit {
  font-family: 'Cinzel', serif;
  font-size: 0.58rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--void);
  background: var(--gold);
  border: none;
  border-radius: 3px;
  padding: 0.42rem 1.2rem;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s;
}
.comment-submit:hover { background: var(--gold-pale); transform: translateY(-1px); }
.comment-submit:active { transform: translateY(0); }
.comment-list { display: flex; flex-direction: column; gap: 0.75rem; margin-top: 1.5rem; }
.comment-loading, .comment-empty {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.22em;
  color: var(--text-dim);
  opacity: 0.45;
  text-align: center;
  padding: 2rem 1rem;
}
.comment-item {
  background: rgba(255,255,255,0.015);
  border: 1px solid rgba(212,175,55,0.1);
  border-radius: 6px;
  padding: 1rem 1.2rem;
  transition: border-color 0.2s;
}
.comment-item:hover { border-color: rgba(212,175,55,0.24); }
.comment-meta { display: flex; align-items: center; gap: 0.7rem; margin-bottom: 0.45rem; }
.comment-name {
  font-family: 'Cinzel', serif;
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--gold);
}
.comment-date {
  font-family: 'Cinzel', serif;
  font-size: 0.52rem;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  opacity: 0.55;
}
.comment-text {
  font-family: 'Crimson Pro', serif;
  font-size: 0.97rem;
  color: var(--text-main);
  line-height: 1.65;
}
.comment-delete-btn {
  margin-left: auto;
  background: none;
  border: none;
  color: rgba(255,80,80,0.35);
  font-size: 0.75rem;
  cursor: pointer;
  padding: 0.1rem 0.35rem;
  border-radius: 3px;
  transition: color 0.15s, background 0.15s;
  line-height: 1;
}
.comment-delete-btn:hover { color: rgba(255,80,80,0.9); background: rgba(255,80,80,0.08); }

/* ==============================
   ABOUT & CONTACT SECTION
   ============================== */
#aboutContactSection {
  padding: 0.75rem 2rem 3.5rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
}
.about-contact-row {
  display: flex;
  align-items: center;
  gap: 1.2rem;
  flex-wrap: wrap;
  justify-content: center;
}
.about-link, .contact-email {
  font-family: 'Cinzel', serif;
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-dim);
  transition: color 0.2s;
}
.about-link:hover, .contact-email:hover { color: var(--gold); }
.contact-sep {
  font-family: 'Cinzel', serif;
  font-size: 0.85rem;
  color: var(--text-dim);
  opacity: 0.4;
}
.contact-label {
  font-family: 'Cinzel', serif;
  font-size: 0.65rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--text-dim);
  opacity: 0.5;
}

/* ==============================
   SITE FOOTER BOTTOM
   ============================== */
#siteFooterBottom {
  border-top: 1px solid rgba(212,175,55,0.15);
  position: relative;
  padding: 4rem 2rem 5rem;
  text-align: center;
}
#siteFooterBottom::before {
  content: '';
  position: absolute;
  top: 0; left: 15%; right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,175,55,0.45), transparent);
}
.sfb-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
}
.sfb-glyph {
  font-size: 2rem;
  color: var(--gold);
  opacity: 0.35;
  line-height: 1;
}
.sfb-brand {
  font-family: 'Cinzel', serif;
  font-size: clamp(1.4rem, 4vw, 2.2rem);
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--gold);
}
.sfb-tagline {
  font-family: 'Crimson Pro', serif;
  font-style: italic;
  font-size: clamp(0.95rem, 2.5vw, 1.15rem);
  color: var(--text-dim);
  opacity: 0.7;
  letter-spacing: 0.08em;
}
.sfb-divider {
  width: 60px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,175,55,0.4), transparent);
  margin: 0.4rem 0;
}
.sfb-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  justify-content: center;
}
.sfb-link {
  font-family: 'Cinzel', serif;
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--text-dim);
  transition: color 0.2s;
}
.sfb-link:hover { color: var(--gold); }
.sfb-email {
  font-family: 'Crimson Pro', serif;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
  text-decoration: none;
  color: var(--text-dim);
  transition: color 0.2s;
}
.sfb-email:hover { color: var(--gold); }
.sfb-dot { color: rgba(212,175,55,0.35); font-size: 0.9rem; }
.sfb-copy {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--text-dim);
  opacity: 0.35;
  margin-top: 0.5rem;
}

/* ── NAV DROPDOWN: ABOUT/CONTACT LINKS ── */
.nav-meta-row {
  border-top: 1px solid rgba(212,175,55,0.1);
  margin-top: 0.4rem;
  padding-top: 0.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}
.nav-meta-link {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.32rem 0.6rem;
  border-radius: 4px;
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  color: rgba(212,175,55,0.5);
  text-decoration: none;
  transition: background 0.15s, color 0.15s;
}
.nav-meta-link:hover {
  background: rgba(212,175,55,0.06);
  color: rgba(212,175,55,0.85);
}
.nav-meta-icon { font-size: 0.7rem; opacity: 0.7; }

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(212,175,55,0.1); }
  50% { box-shadow: 0 0 40px rgba(212,175,55,0.3); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  canvas { display: none; }
}

/* ==============================
   MULTI-PAGE ADDENDUM (added when the chess chronicle
   was split from one file into the /chess/ section)
   ============================== */

/* Persistent "you are here" state in the nav dropdown */
#navDropdown a.nav-current {
  color: var(--gold);
  background: rgba(212,175,55,0.07);
  border-left-color: var(--gold);
}
#navDropdown a.nav-current .nav-num { color: var(--gold); opacity: 0.7; }

/* ==============================
   HUB CARDS — home.html section index
   ============================== */
.hub-intro { text-align: center; max-width: 640px; margin: 0 auto 3rem; }

.hub-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 1.4rem;
  margin: 0 0 1rem;
}

.hub-card {
  display: block;
  background: linear-gradient(135deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  border: 1px solid var(--border-gold);
  border-radius: var(--radius);
  padding: 1.8rem 1.9rem 1.6rem;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.hub-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-deep), var(--shadow-gold);
  border-color: var(--border-gold-strong);
}

.hub-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--era-accent, var(--gold)), transparent);
}

.hub-card-glyph {
  font-size: 1.7rem;
  opacity: 0.9;
  margin-bottom: 0.8rem;
  display: block;
  color: var(--era-accent, var(--gold));
}

.hub-card-eyebrow {
  font-family: 'Cinzel', serif;
  font-size: 0.56rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--era-accent, var(--gold));
  opacity: 0.9;
  display: block;
  margin-bottom: 0.5rem;
}

.hub-card h3 {
  font-family: 'Cinzel', serif;
  font-size: 1.12rem;
  color: var(--text-bright);
  margin-bottom: 0.55rem;
  line-height: 1.3;
}

.hub-card p {
  font-family: 'Crimson Pro', serif;
  font-weight: 300;
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.65;
  margin-bottom: 1.1rem;
}

.hub-card-cta {
  font-family: 'Cinzel', serif;
  font-size: 0.6rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--era-accent, var(--gold));
}

.hub-card:hover .hub-card-cta { text-decoration: underline; }

@media (max-width: 640px) {
  .hub-grid { grid-template-columns: 1fr; }
}