/* =====================================================
   Chess Master - نظام التصميم الرئيسي
   ===================================================== */

/* ===== Google Fonts ===== */
@import url('https://fonts.googleapis.com/css2?family=Tajawal:wght@300;400;500;700;800;900&family=Cairo:wght@300;400;600;700;900&display=swap');

/* ===== CSS Variables ===== */
:root {
  --bg-primary:    #0d1117;
  --bg-secondary:  #111827;
  --bg-card:       #161b27;
  --bg-card-hover: #1c2333;
  --border:        rgba(255,255,255,0.06);
  --border-glow:   rgba(201,168,76,0.3);

  --gold:          #c9a84c;
  --gold-light:    #f8d56d;
  --gold-dark:     #9a7832;
  --accent-blue:   #667eea;
  --accent-green:  #00ff88;
  --accent-red:    #e94560;
  --accent-purple: #a855f7;

  --text-primary:  #e6edf3;
  --text-secondary:#8b949e;
  --text-muted:    #484f58;

  --gradient-gold: linear-gradient(135deg, #c9a84c, #f8d56d, #c9a84c);
  --gradient-hero: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --gradient-card: linear-gradient(135deg, rgba(201,168,76,0.08) 0%, rgba(102,126,234,0.08) 100%);

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-xl:  28px;
  --radius-full:9999px;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(201,168,76,0.15);
  --shadow-btn:  0 4px 20px rgba(201,168,76,0.3);

  --transition-fast:   0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow:   0.6s ease;

  --font-main: 'Tajawal', 'Cairo', system-ui, sans-serif;
  --font-size-xs:   0.75rem;
  --font-size-sm:   0.875rem;
  --font-size-base: 1rem;
  --font-size-lg:   1.125rem;
  --font-size-xl:   1.25rem;
  --font-size-2xl:  1.5rem;
  --font-size-3xl:  1.875rem;
  --font-size-4xl:  2.25rem;
  --font-size-5xl:  3rem;
  --font-size-6xl:  3.75rem;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  /* direction: rtl; Removed, it is now determined by HTML tag */
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: var(--transition-fast); }
img { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }
input, textarea, select { font-family: inherit; }

/* Chess boards must stay LTR even on Arabic pages so square indexes match the UI. */
.chess-board {
  direction: ltr;
}

.chess-board.board-disabled {
  pointer-events: none;
}

.chess-board .coord-rank,
.chess-board .coord-file {
  position: absolute;
  z-index: 3;
  pointer-events: none;
  font-size: 10px;
  font-weight: 800;
  line-height: 1;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

.chess-board .coord-rank {
  top: 4px;
  left: 4px;
}

.chess-board .coord-file {
  right: 4px;
  bottom: 4px;
}
.chess-board .sq-light .coord-rank,
.chess-board .sq-light .coord-file {
  color: rgba(54, 39, 27, 0.72);
}
.chess-board .sq-dark .coord-rank,
.chess-board .sq-dark .coord-file {
  color: rgba(255, 246, 225, 0.78);
}

/* ===== Preloader ===== */
#preloader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg-primary);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#preloader.hidden { opacity: 0; visibility: hidden; }

.preloader-inner { text-align: center; }
.chess-spinner {
  font-size: 4rem;
  display: block;
  animation: spinPiece 1.5s linear infinite;
  color: var(--gold);
  text-shadow: 0 0 30px rgba(201,168,76,0.5);
}
.preloader-inner p {
  margin-top: 1rem;
  font-size: var(--font-size-lg);
  font-weight: 700;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.loader-bar {
  width: 200px; height: 3px;
  background: rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  margin: 1rem auto 0;
  overflow: hidden;
}
.loader-bar span {
  display: block; width: 40%;
  height: 100%;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
  animation: loadSlide 1.2s ease-in-out infinite;
}

@keyframes spinPiece {
  0%   { transform: rotate(0deg) scale(1); }
  50%  { transform: rotate(180deg) scale(1.1); }
  100% { transform: rotate(360deg) scale(1); }
}
@keyframes loadSlide {
  0%   { margin-inline-end: 100%; }
  100% { margin-inline-end: -40%; margin-inline-start: 100%; }
}

/* ===== Particles Canvas ===== */
#particles-canvas {
  position: fixed; inset: 0;
  pointer-events: none; z-index: 0;
}

/* ===== Navigation ===== */
#navbar {
  position: fixed; top: 0; right: 0; left: 0; z-index: 1000;
  padding: 0 2rem;
  height: 70px;
  background: rgba(13,17,23,0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--transition-normal), background var(--transition-normal);
}
#navbar.scrolled {
  background: rgba(13,17,23,0.95);
  box-shadow: 0 4px 30px rgba(0,0,0,0.4);
}
#navbar.hide-nav { transform: translateY(-100%); }

.nav-container {
  max-width: 1400px; margin: 0 auto;
  height: 100%;
  display: flex; align-items: center; gap: 2rem;
}

.nav-logo {
  display: flex; align-items: center; gap: 0.5rem;
  font-size: var(--font-size-xl); font-weight: 800;
  white-space: nowrap;
}
.logo-piece {
  font-size: 1.8rem;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: drop-shadow(0 0 8px rgba(201,168,76,0.4));
}
.nav-logo strong { color: var(--gold); }

.nav-links {
  display: flex; align-items: center; gap: 0.25rem;
  flex: 1;
}
.nav-links li a {
  padding: 0.45rem 0.9rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm);
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}
.nav-links li a:hover,
.nav-links li a.active {
  color: var(--text-primary);
  background: rgba(255,255,255,0.06);
}
.nav-links li a.active { color: var(--gold); }
.mobile-auth-link { display: none; }

.nav-user-area { display: flex; align-items: center; gap: 0.75rem; margin-inline-start: auto; }

.nav-extra { display: flex; align-items: center; margin-inline-end: 1rem; }
.lang-switcher {
  display: flex; align-items: center; gap: 0.25rem;
  background: rgba(255,255,255,0.05); padding: 0.2rem;
  border-radius: var(--radius-full);
}
.lang-switcher a {
  padding: 0.2rem; border-radius: var(--radius-full);
  filter: grayscale(1); opacity: 0.6; transition: var(--transition-fast);
  font-size: 1.2rem; line-height: 1;
}
.lang-switcher a:hover { filter: grayscale(0); opacity: 1; }
.lang-switcher a.active { filter: grayscale(0); opacity: 1; background: rgba(255,255,255,0.1); }

.notif-btn {
  position: relative;
  width: 38px; height: 38px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border);
  font-size: 1.1rem;
  display: flex; align-items: center; justify-content: center;
  transition: var(--transition-fast);
  cursor: pointer;
}
.notif-btn:hover { background: rgba(255,255,255,0.1); border-color: var(--border-glow); }
.notif-count {
  position: absolute; top: -3px; right: -3px;
  background: var(--accent-red);
  color: #fff;
  font-size: 10px; font-weight: 700;
  min-width: 18px; height: 18px;
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  padding: 0 4px;
}

.nav-profile {
  display: flex; align-items: center; gap: 0.6rem;
  cursor: pointer; position: relative;
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-lg);
  transition: var(--transition-fast);
}
.nav-profile:hover { background: rgba(255,255,255,0.05); }

.nav-avatar {
  width: 36px; height: 36px;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: var(--font-size-sm);
  color: var(--bg-primary);
  flex-shrink: 0;
}
.nav-profile-info { display: flex; flex-direction: column; line-height: 1.2; }
.nav-username { font-size: var(--font-size-sm); font-weight: 700; }
.nav-rating { font-size: var(--font-size-xs); color: var(--gold); }
.profile-arrow { font-size: 0.8rem; color: var(--text-muted); }

.profile-dropdown {
  position: absolute; top: calc(100% + 0.5rem); inset-inline-end: 0;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  min-width: 180px;
  padding: 0.5rem;
  box-shadow: var(--shadow-card);
  opacity: 0; visibility: hidden;
  transform: translateY(-8px);
  transition: var(--transition-normal);
  z-index: 100;
}
.profile-dropdown.open { opacity: 1; visibility: visible; transform: translateY(0); }

.profile-dropdown a {
  display: flex; align-items: center; gap: 0.5rem;
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}
.profile-dropdown a:hover { background: rgba(255,255,255,0.06); color: var(--text-primary); }
.dropdown-divider { height: 1px; background: var(--border); margin: 0.4rem 0; }
.profile-dropdown .logout-link:hover { color: var(--accent-red); }

.btn-nav-login {
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm); font-weight: 600;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  transition: var(--transition-fast);
}
.btn-nav-login:hover { color: var(--text-primary); border-color: var(--border-glow); }

.btn-nav-register {
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm); font-weight: 700;
  background: var(--gradient-gold);
  color: var(--bg-primary);
  transition: var(--transition-normal);
  box-shadow: 0 2px 12px rgba(201,168,76,0.25);
}
.btn-nav-register:hover { transform: translateY(-1px); box-shadow: var(--shadow-btn); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column; gap: 5px;
  width: 36px; padding: 4px;
  margin-inline-start: auto;
}
.hamburger span {
  display: block; height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition-normal);
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Main Content ===== */
#main-content { padding-top: 70px; position: relative; z-index: 1; }

/* ===== Container ===== */
.container { max-width: 1200px; margin: 0 auto; padding: 0 1.5rem; }

/* ===== Buttons ===== */
.btn-hero-primary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-full);
  background: var(--gradient-gold);
  color: var(--bg-primary);
  font-size: var(--font-size-base); font-weight: 800;
  box-shadow: var(--shadow-btn);
  transition: var(--transition-normal);
  white-space: nowrap;
}
.btn-hero-primary:hover { transform: translateY(-3px); box-shadow: 0 8px 30px rgba(201,168,76,0.45); }

.btn-hero-secondary {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.06);
  border: 1px solid var(--border);
  color: var(--text-primary);
  font-size: var(--font-size-base); font-weight: 600;
  transition: var(--transition-normal);
  backdrop-filter: blur(10px);
}
.btn-hero-secondary:hover { background: rgba(255,255,255,0.12); border-color: var(--border-glow); transform: translateY(-2px); }

.btn-primary-lg {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-full);
  background: var(--gradient-gold);
  color: var(--bg-primary);
  font-size: var(--font-size-base); font-weight: 800;
  box-shadow: var(--shadow-btn);
  transition: var(--transition-normal);
  margin-top: 1.5rem;
}
.btn-primary-lg:hover { transform: translateY(-2px); box-shadow: 0 8px 30px rgba(201,168,76,0.45); }

.btn-outline {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.7rem 1.8rem;
  border-radius: var(--radius-full);
  border: 1.5px solid var(--border-glow);
  color: var(--gold);
  font-weight: 600;
  transition: var(--transition-normal);
}
.btn-outline:hover { background: rgba(201,168,76,0.08); transform: translateY(-2px); }

.btn-sm {
  display: inline-flex; align-items: center;
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-full);
  background: rgba(201,168,76,0.12);
  color: var(--gold);
  font-size: var(--font-size-xs); font-weight: 700;
  border: 1px solid var(--border-glow);
  transition: var(--transition-fast);
}
.btn-sm:hover { background: rgba(201,168,76,0.2); }

/* ===== Typography Helpers ===== */
.text-gradient {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-tag {
  display: inline-block;
  padding: 0.3rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(201,168,76,0.1);
  border: 1px solid var(--border-glow);
  color: var(--gold);
  font-size: var(--font-size-xs); font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em;
  margin-bottom: 1rem;
}

.section-head {
  text-align: center;
  margin-bottom: 3rem;
}
.section-head h2 {
  font-size: var(--font-size-4xl); font-weight: 900;
  margin-bottom: 0.75rem;
  line-height: 1.2;
}
.section-head p { color: var(--text-secondary); font-size: var(--font-size-lg); }

.section-cta { text-align: center; margin-top: 2.5rem; }

/* ===== Animation Classes ===== */
.animate-in {
  opacity: 0;
  transform: translateY(24px);
  animation: fadeInUp 0.7s ease forwards;
}
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.45s; }

.will-animate {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.will-animate.animated { opacity: 1; transform: translateY(0); }

@keyframes fadeInUp {
  to { opacity: 1; transform: translateY(0); }
}

/* ===== Hero Section ===== */
.hero {
  min-height: calc(100vh - 70px);
  display: flex; align-items: center;
  position: relative;
  overflow: hidden;
  padding: 4rem 2rem;
}

.hero-bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(201,168,76,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.hero-glow {
  position: absolute; border-radius: var(--radius-full);
  pointer-events: none;
  filter: blur(80px);
}
.hero-glow-1 {
  width: 500px; height: 400px;
  background: rgba(102,126,234,0.12);
  top: -100px; right: 10%;
  animation: glowFloat 8s ease-in-out infinite;
}
.hero-glow-2 {
  width: 400px; height: 400px;
  background: rgba(201,168,76,0.08);
  bottom: 0; left: 5%;
  animation: glowFloat 10s ease-in-out infinite reverse;
}

@keyframes glowFloat {
  0%,100% { transform: translate(0,0) scale(1); }
  50%      { transform: translate(30px,-30px) scale(1.05); }
}

.hero-container {
  max-width: 1200px; margin: 0 auto; width: 100%;
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: center;
}

.hero-content { display: flex; flex-direction: column; gap: 1.5rem; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 0.5rem;
  padding: 0.4rem 1rem;
  border-radius: var(--radius-full);
  background: rgba(201,168,76,0.08);
  border: 1px solid var(--border-glow);
  color: var(--gold);
  font-size: var(--font-size-sm); font-weight: 600;
  width: fit-content;
}
.badge-pulse {
  width: 8px; height: 8px;
  background: var(--accent-green);
  border-radius: var(--radius-full);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; transform: scale(1); box-shadow: 0 0 0 0 rgba(0,255,136,0.4); }
  50%      { opacity: 0.8; transform: scale(1.1); box-shadow: 0 0 0 6px rgba(0,255,136,0); }
}

.hero-title {
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 500px;
}

.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; }

.hero-stats {
  display: flex; align-items: center; gap: 2rem;
  padding: 1.5rem;
  background: rgba(255,255,255,0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(10px);
}
.h-stat { text-align: center; }
.h-stat-num {
  display: block;
  font-size: var(--font-size-2xl); font-weight: 900;
  color: var(--gold);
  line-height: 1.1;
}
.h-stat-label { font-size: var(--font-size-xs); color: var(--text-muted); }
.h-stat-sep { width: 1px; height: 40px; background: var(--border); }

.hero-visual { display: flex; justify-content: center; align-items: center; }

.hero-board-wrapper {
  position: relative;
  width: 380px; max-width: 100%;
}
.board-glow-ring {
  position: absolute; inset: -20px;
  border-radius: var(--radius-xl);
  background: conic-gradient(from 0deg, rgba(201,168,76,0.3), transparent 60%, rgba(102,126,234,0.2), transparent 100%);
  animation: rotateRing 8s linear infinite;
  filter: blur(20px);
}
@keyframes rotateRing {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

.floating-piece {
  position: absolute;
  font-size: 2.5rem;
  color: var(--gold);
  opacity: 0.4;
  pointer-events: none;
  animation: floatPiece 6s ease-in-out infinite;
  text-shadow: 0 0 20px rgba(201,168,76,0.5);
}
.fp-1 { top: -30px; right: -20px; animation-delay: 0s; }
.fp-2 { bottom: -20px; right: -30px; animation-delay: -1.5s; }
.fp-3 { top: 30%; left: -35px; animation-delay: -3s; }
.fp-4 { bottom: 20%; left: -20px; animation-delay: -4.5s; }

@keyframes floatPiece {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50%      { transform: translateY(-15px) rotate(10deg); }
}

.hero-scroll-hint {
  position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%);
  text-align: center;
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  animation: bounce 2.5s ease-in-out infinite;
}
.scroll-chevron { font-size: 1.4rem; margin-top: 0.25rem; }
@keyframes bounce {
  0%,100% { transform: translateX(-50%) translateY(0); }
  50%      { transform: translateX(-50%) translateY(6px); }
}

/* ===== Chess Board (Mini) ===== */
.chess-board.mini-board {
  display: grid;
  grid-template-columns: repeat(8, 1fr);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.6), var(--shadow-glow);
  position: relative; z-index: 1;
  aspect-ratio: 1;
  width: 100%;
}
.sq { aspect-ratio: 1; display: flex; align-items: center; justify-content: center; }
.sq-light { background: #f0d9b5; }
.sq-dark  { background: #b58863; }
.sq .piece {
  font-size: 1.6rem;
  line-height: 1;
  user-select: none;
}
.chess-board .piece {
  width: 94%;
  height: 94%;
  display: grid;
  place-items: center;
  position: relative;
  z-index: 1;
  color: var(--piece-text, currentColor);
  -webkit-user-drag: element;
  -webkit-tap-highlight-color: transparent;
}
.piece-svg {
  width: 100%;
  height: 100%;
  overflow: visible;
  filter: drop-shadow(0 2px 1.5px rgba(0,0,0,0.42));
  pointer-events: none;
}
.piece-art {
  transform-origin: 50px 50px;
}
.piece-shape {
  fill: var(--piece-fill);
  stroke: var(--piece-outline);
  stroke-width: var(--piece-line, 2.8);
  stroke-linecap: round;
  stroke-linejoin: round;
}
.piece-detail {
  fill: none;
  stroke: var(--piece-detail);
  stroke-width: var(--piece-detail-line, 2.4);
  stroke-linecap: round;
  stroke-linejoin: round;
}
.piece-detail-fill {
  fill: var(--piece-detail);
  stroke: none;
}
.piece[data-piece-color="white"] {
  --piece-fill: var(--piece-white-fill, #f7f2e8);
  --piece-outline: var(--piece-white-stroke, #171717);
  --piece-detail: var(--piece-white-detail, #756c60);
}
.piece[data-piece-color="black"] {
  --piece-fill: var(--piece-black-fill, #292826);
  --piece-outline: var(--piece-black-stroke, #080808);
  --piece-detail: var(--piece-black-detail, #aaa198);
}
.chess-board.pieces-neo {
  --piece-white-fill: #f7f2e8;
  --piece-white-stroke: #171717;
  --piece-white-detail: #756c60;
  --piece-black-fill: #292826;
  --piece-black-stroke: #070707;
  --piece-black-detail: #a79e94;
  --piece-line: 3;
  --piece-detail-line: 2.4;
}
.chess-board.pieces-staunton {
  --piece-white-fill: #fffaf0;
  --piece-white-stroke: #201e1b;
  --piece-white-detail: #5f5a52;
  --piece-black-fill: #202020;
  --piece-black-stroke: #000000;
  --piece-black-detail: #b9b9b9;
  --piece-line: 2.45;
  --piece-detail-line: 2.1;
}
.chess-board.pieces-wood {
  --piece-white-fill: #edcf9c;
  --piece-white-stroke: #3b2517;
  --piece-white-detail: #8d6038;
  --piece-black-fill: #4b3426;
  --piece-black-stroke: #130b07;
  --piece-black-detail: #c49b70;
  --piece-line: 2.85;
  --piece-detail-line: 2.2;
}
.chess-board.pieces-classic {
  --piece-white-fill: #fbf8f1;
  --piece-white-stroke: #1b1b1b;
  --piece-white-detail: #77736c;
  --piece-black-fill: #323232;
  --piece-black-stroke: #0a0a0a;
  --piece-black-detail: #b2b2b2;
  --piece-line: 2.65;
  --piece-detail-line: 2.15;
}
.chess-board.pieces-minimal {
  --piece-white-fill: #f7f5ef;
  --piece-white-stroke: #181818;
  --piece-white-detail: #67645e;
  --piece-black-fill: #17191d;
  --piece-black-stroke: #050505;
  --piece-black-detail: #d1d1d1;
  --piece-line: 3.2;
  --piece-detail-line: 2.6;
}
.chess-board.pieces-staunton .piece-art {
  transform: scale(0.98);
}
.chess-board.pieces-minimal .piece-art {
  transform: scale(0.94);
}
.chess-board.pieces-wood .piece-svg {
  filter: drop-shadow(0 2px 1.5px rgba(30,15,7,0.5));
}

/* ===== Features Section ===== */
.features-section {
  padding: 5rem 0 4rem;
}
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.feature-card {
  padding: 2rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition-normal);
  position: relative; overflow: hidden;
}
.feature-card::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--gradient-card);
  opacity: 0;
  transition: var(--transition-normal);
}
.feature-card:hover { border-color: var(--border-glow); transform: translateY(-4px); box-shadow: var(--shadow-card); }
.feature-card:hover::before { opacity: 1; }
.fc-icon { font-size: 2.5rem; margin-bottom: 1rem; }
.feature-card h3 { font-size: var(--font-size-lg); font-weight: 700; margin-bottom: 0.5rem; color: var(--gold); }
.feature-card p { font-size: var(--font-size-sm); color: var(--text-secondary); }

/* ===== Courses Section ===== */
.courses-section { padding: 4rem 0; }

.courses-filter {
  display: flex; justify-content: center; gap: 0.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.5rem;
}
.filter-btn {
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-sm); font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  transition: var(--transition-fast); cursor: pointer;
}
.filter-btn:hover { color: var(--text-primary); }
.filter-btn.active { background: var(--gradient-gold); color: var(--bg-primary); border-color: transparent; }

.courses-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.course-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition-normal);
  display: flex; flex-direction: column;
}
.course-card:hover { border-color: var(--border-glow); transform: translateY(-4px); box-shadow: var(--shadow-card); }

.cc-header {
  padding: 1.5rem 1.5rem 1rem;
  display: flex; justify-content: space-between; align-items: flex-start;
}
.cc-icon { font-size: 2rem; }
.cc-badge {
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs); font-weight: 700;
}
.cc-badge.beginner     { background: rgba(0,255,136,0.1); color: var(--accent-green); }
.cc-badge.intermediate { background: rgba(248,213,109,0.15); color: var(--gold-light); }
.cc-badge.advanced     { background: rgba(233,69,96,0.1); color: var(--accent-red); }

.cc-body { padding: 0 1.5rem 1rem; flex: 1; }
.cc-body h3 { font-size: var(--font-size-base); font-weight: 700; margin-bottom: 0.5rem; }
.cc-body p  { font-size: var(--font-size-sm); color: var(--text-secondary); }

.cc-footer {
  padding: 1rem 1.5rem;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
}
.cc-time { font-size: var(--font-size-xs); color: var(--text-muted); }
.cc-arrow { color: var(--gold); font-size: 1rem; }

/* ===== Tactics Preview Section ===== */
.tactics-preview-section { padding: 5rem 0; }
.tp-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: center;
}
.tp-text { display: flex; flex-direction: column; gap: 1rem; }
.tp-text h2 { font-size: var(--font-size-4xl); font-weight: 900; }
.tp-text p  { color: var(--text-secondary); font-size: var(--font-size-lg); }

.tactics-features { display: flex; flex-direction: column; gap: 0.5rem; }
.tactics-features li { font-size: var(--font-size-sm); color: var(--text-secondary); }

.tp-board { position: relative; }
.puzzle-label {
  display: flex; gap: 0.5rem; margin-bottom: 0.75rem; align-items: center;
}
.pl-diff {
  padding: 0.2rem 0.7rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs); font-weight: 700;
}
.pl-diff.medium { background: rgba(248,213,109,0.15); color: var(--gold-light); }
.pl-diff.hard   { background: rgba(233,69,96,0.1); color: var(--accent-red); }
.pl-diff.easy   { background: rgba(0,255,136,0.1); color: var(--accent-green); }
.pl-theme { font-size: var(--font-size-xs); color: var(--text-muted); }

.puzzle-prompt {
  text-align: center; margin-top: 1rem;
  font-size: var(--font-size-sm); color: var(--text-secondary);
  padding: 0.75rem;
  background: rgba(255,255,255,0.02);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

/* ===== Openings Section ===== */
.openings-section { padding: 4rem 0; }
.openings-scroll {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}
.opening-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: var(--transition-normal);
  display: flex; flex-direction: column; gap: 0.75rem;
}
.opening-card:hover { border-color: var(--border-glow); transform: translateY(-3px); box-shadow: var(--shadow-card); }

.oc-eco {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: rgba(201,168,76,0.12);
  color: var(--gold);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-xs); font-weight: 700;
  font-family: monospace;
  width: fit-content;
}
.opening-card h4 { font-size: var(--font-size-base); font-weight: 700; }
.opening-card p  { font-size: var(--font-size-sm); color: var(--text-secondary); }
.opening-line {
  direction: ltr;
  unicode-bidi: isolate;
  color: var(--gold-light);
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: var(--font-size-xs);
  line-height: 1.6;
}
.content-note {
  max-width: 760px;
  margin: 0.6rem auto 0;
  color: var(--text-muted);
  font-size: var(--font-size-xs);
  line-height: 1.8;
}

.oc-stats { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.oc-stat {
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs); font-weight: 600;
}
.oc-stat.white-win { background: rgba(255,255,255,0.08); color: #e0e0e0; }
.oc-stat.draw      { background: rgba(248,213,109,0.08); color: var(--gold-light); }
.oc-stat.black-win { background: rgba(0,0,0,0.2); color: #888; border: 1px solid rgba(255,255,255,0.1); }

.oc-level {
  font-size: var(--font-size-xs); font-weight: 700;
  width: fit-content;
  padding: 0.15rem 0.6rem;
  border-radius: var(--radius-full);
}
.oc-level.beginner     { background: rgba(0,255,136,0.1); color: var(--accent-green); }
.oc-level.intermediate { background: rgba(248,213,109,0.15); color: var(--gold-light); }
.oc-level.advanced     { background: rgba(233,69,96,0.1); color: var(--accent-red); }

/* ===== Play CTA Section ===== */
.play-cta-section { padding: 4rem 0; }
.play-cta-inner {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 4rem; align-items: center;
  padding: 3rem;
  background: linear-gradient(135deg, rgba(102,126,234,0.08) 0%, rgba(201,168,76,0.06) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
}
.play-cta-text h2 { font-size: var(--font-size-3xl); font-weight: 900; margin-bottom: 1rem; }
.play-cta-text p  { color: var(--text-secondary); margin-bottom: 1.5rem; }

.ai-levels { display: flex; gap: 1rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.ai-lvl {
  display: flex; flex-direction: column; align-items: center; gap: 0.25rem;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  transition: var(--transition-normal);
  flex: 1; min-width: 90px;
}
.ai-lvl.active { border-color: var(--gold); background: rgba(201,168,76,0.08); }
.lvl-icon { font-size: 1.5rem; }
.ai-lvl span { font-size: var(--font-size-sm); font-weight: 700; }
.ai-lvl small { font-size: var(--font-size-xs); color: var(--text-muted); }
.play-cta-visual { display: flex; align-items: center; justify-content: center; }

/* ===== Leaderboard Section ===== */
.leaderboard-section { padding: 4rem 0 5rem; }

.leaderboard-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.lb-head-row {
  display: grid;
  grid-template-columns: 60px 1fr 120px 120px 100px;
  gap: 1rem;
  padding: 1rem 1.5rem;
  background: rgba(255,255,255,0.02);
  border-bottom: 1px solid var(--border);
  font-size: var(--font-size-xs); font-weight: 700;
  color: var(--text-muted); text-transform: uppercase;
}
.lb-row {
  display: grid;
  grid-template-columns: 60px 1fr 120px 120px 100px;
  gap: 1rem;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border);
  align-items: center;
  transition: var(--transition-fast);
}
.lb-row:last-child { border-bottom: none; }
.lb-row:hover { background: rgba(255,255,255,0.02); }

.lb-row.top-1 { background: linear-gradient(90deg, rgba(255,215,0,0.05) 0%, transparent 100%); }
.lb-row.top-2 { background: linear-gradient(90deg, rgba(192,192,192,0.04) 0%, transparent 100%); }
.lb-row.top-3 { background: linear-gradient(90deg, rgba(205,127,50,0.04) 0%, transparent 100%); }

.lb-rank { font-size: var(--font-size-xl); text-align: center; }
.lb-player { display: flex; align-items: center; gap: 0.75rem; }
.lb-avatar {
  width: 36px; height: 36px;
  background: var(--gradient-gold);
  border-radius: var(--radius-full);
  display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: var(--font-size-sm);
  color: var(--bg-primary); flex-shrink: 0;
}
.lb-name { font-weight: 700; }
.lb-rating { font-weight: 800; color: var(--gold); font-size: var(--font-size-base); }
.lb-level {
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs); font-weight: 700;
  width: fit-content;
}
.lb-games { font-size: var(--font-size-sm); color: var(--text-muted); }

/* ===== Join Section ===== */
.join-section { padding: 4rem 0 6rem; }
.join-inner {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, rgba(102,126,234,0.08) 0%, rgba(201,168,76,0.06) 100%);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  position: relative; overflow: hidden;
}
.join-inner::before {
  content: '♛';
  position: absolute;
  font-size: 20rem; color: rgba(201,168,76,0.03);
  top: -60px; right: -40px;
  pointer-events: none;
}
.join-inner h2 { font-size: var(--font-size-4xl); font-weight: 900; margin-bottom: 1rem; }
.join-inner p  { color: var(--text-secondary); font-size: var(--font-size-lg); margin-bottom: 2rem; }
.join-cta { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }

/* ===== Footer ===== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 0;
}
.footer-inner { max-width: 1200px; margin: 0 auto; padding: 3rem 1.5rem 0; }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
}
.footer-logo {
  font-size: var(--font-size-xl); font-weight: 900;
  color: var(--gold); margin-bottom: 1rem;
}
.footer-brand p { font-size: var(--font-size-sm); color: var(--text-secondary); margin-bottom: 1.5rem; line-height: 1.8; }

.footer-socials { display: flex; gap: 0.75rem; }
.footer-socials a {
  width: 36px; height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  transition: var(--transition-fast);
}
.footer-socials a:hover { color: var(--gold); border-color: var(--border-glow); background: rgba(201,168,76,0.08); }

.footer-links-col h4 {
  font-size: var(--font-size-sm); font-weight: 800;
  text-transform: uppercase; letter-spacing: 0.1em;
  color: var(--text-primary); margin-bottom: 1.25rem;
}
.footer-links-col ul { display: flex; flex-direction: column; gap: 0.6rem; }
.footer-links-col ul a { font-size: var(--font-size-sm); color: var(--text-muted); }
.footer-links-col ul a:hover { color: var(--gold); }

.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding: 1.5rem 0;
  font-size: var(--font-size-sm); color: var(--text-muted);
  flex-wrap: wrap; gap: 1rem;
}
.footer-bottom-links { display: flex; gap: 1.5rem; }
.footer-bottom-links a:hover { color: var(--gold); }

/* ===== Toast Notifications ===== */
#toast-container {
  position: fixed; bottom: 1.5rem; left: 1.5rem;
  z-index: 9998;
  display: flex; flex-direction: column; gap: 0.5rem;
}
.toast {
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-md);
  font-size: var(--font-size-sm); font-weight: 600;
  max-width: 320px;
  transform: translateX(-120%);
  transition: transform 0.3s ease;
  display: flex; align-items: center; gap: 0.5rem;
  box-shadow: var(--shadow-card);
}
.toast.show { transform: translateX(0); }
.toast-info    { background: var(--bg-card); border: 1px solid var(--border); color: var(--text-primary); }
.toast-success { background: rgba(0,255,136,0.1); border: 1px solid rgba(0,255,136,0.3); color: var(--accent-green); }
.toast-error   { background: rgba(233,69,96,0.1); border: 1px solid rgba(233,69,96,0.3); color: var(--accent-red); }
.toast-warning { background: rgba(248,213,109,0.1); border: 1px solid rgba(248,213,109,0.3); color: var(--gold-light); }

/* ===== Responsive ===== */
@media (max-width: 1100px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .courses-grid  { grid-template-columns: repeat(2, 1fr); }
  .openings-scroll { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
  .lb-head-row, .lb-row { grid-template-columns: 50px 1fr 100px 100px 80px; }
}

@media (max-width: 900px) {
  .hero-container { grid-template-columns: 1fr; }
  .hero-visual { display: none; }
  .tp-inner { grid-template-columns: 1fr; }
  .play-cta-inner { grid-template-columns: 1fr; }
  .play-cta-visual { display: none; }
}

@media (max-width: 1050px) {
  .nav-links {
    position: fixed;
    top: 78px;
    left: 0.75rem;
    right: auto;
    bottom: auto;
    width: min(340px, calc(100vw - 1.5rem));
    max-height: calc(100dvh - 92px);
    align-items: stretch;
    flex: none;
    flex-direction: column;
    gap: 0.35rem;
    padding: 0.7rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    background: rgba(18,24,35,0.98);
    box-shadow: var(--shadow-card);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    pointer-events: none;
    transition: opacity var(--transition-normal), visibility var(--transition-normal), transform var(--transition-normal);
    overflow-y: auto;
    z-index: 1001;
  }
  html[dir="ltr"] .nav-links {
    left: auto;
    right: 0.75rem;
  }
  .nav-links.mobile-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-links li a {
    width: 100%;
    min-height: 44px;
    display: flex;
    align-items: center;
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-sm);
    font-size: var(--font-size-base);
    background: rgba(255,255,255,0.025);
  }
  .mobile-auth-link { display: list-item; }
  .hamburger { display: flex; }
}

@media (max-width: 768px) {
  #navbar {
    padding-inline: 0.75rem;
  }
  .nav-container {
    gap: 0.65rem;
  }
  .nav-logo {
    gap: 0.35rem;
    font-size: var(--font-size-base);
  }
  .logo-piece {
    font-size: 1.35rem;
  }
  .nav-extra {
    margin-inline-end: 0;
  }
  .lang-switcher a {
    font-size: 1rem;
  }
  #navbar:not(.logged-in) .nav-user-area {
    display: none;
  }
  #navbar.logged-in .nav-profile-info,
  #navbar.logged-in .profile-arrow {
    display: none;
  }
  .hamburger {
    margin-inline-start: 0;
  }
  .courses-grid  { grid-template-columns: 1fr; }
  .openings-scroll { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .lb-head-row { display: none; }
  .lb-row { grid-template-columns: 40px 1fr 80px; }
  .lb-row > span:nth-child(4),
  .lb-row > span:nth-child(5) { display: none; }

  .hero { padding: 3rem 1.5rem; min-height: auto; }
  .hero-title { font-size: 2.8rem; }
  .hero-cta { flex-direction: column; }
  .hero-stats { gap: 1rem; padding: 1rem; }

  .section-head h2 { font-size: 2rem; }
  .play-cta-inner { padding: 2rem; }
  .join-inner { padding: 2.5rem 1.5rem; }
  .join-inner h2 { font-size: 2rem; }
}

@media (max-width: 480px) {
  #navbar.logged-in .nav-notifications {
    display: none;
  }
  .features-grid { grid-template-columns: 1fr; }
  .hero-stats { flex-wrap: wrap; }
  .h-stat-sep { display: none; }
  .ai-levels { flex-direction: column; }
}

/* ===== Lesson Content Styles ===== */
.lesson-content .lesson-section {
  margin-bottom: 2rem;
  padding: 1.25rem;
  border-radius: 16px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
}
.lesson-content .lesson-section h2 {
  color: var(--gold);
  font-size: 1.25rem;
  margin-bottom: 0.75rem;
}
.lesson-content .lesson-section h3 {
  color: var(--text-primary);
  font-size: 1.05rem;
  margin: 1rem 0 0.5rem;
}
.lesson-content .lesson-section ul,
.lesson-content .lesson-section ol {
  padding-inline-start: 1.5rem;
  margin: 0.5rem 0;
}
.lesson-content .lesson-section li {
  margin-bottom: 0.4rem;
  color: var(--text-secondary);
}
.lesson-content .lesson-tip {
  background: rgba(201,168,76,0.1);
  border: 1px solid rgba(201,168,76,0.3);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  margin-top: 0.75rem;
  color: var(--gold);
}
.lesson-content .lesson-warning {
  background: rgba(234,76,76,0.08);
  border: 1px solid rgba(234,76,76,0.25);
  border-radius: 12px;
  padding: 0.75rem 1rem;
  margin-top: 0.75rem;
  color: #f87171;
}
.lesson-content .lesson-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 0.75rem;
}
.lesson-content .lesson-table th,
.lesson-content .lesson-table td {
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  text-align: center;
}
.lesson-content .lesson-table th {
  background: rgba(201,168,76,0.1);
  color: var(--gold);
}
.lesson-content .lesson-table td {
  color: var(--text-secondary);
}
/* Account, administration, and legal surfaces */
.account-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.account-panel {
  padding: 1.5rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: rgba(22, 27, 39, 0.92);
}

.account-panel h1,
.account-panel h2 {
  margin: 0 0 1rem;
}

.account-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.25rem;
  padding: 1rem 1.25rem;
  border: 1px solid rgba(248, 213, 109, 0.35);
  border-radius: 8px;
  background: rgba(248, 213, 109, 0.08);
}

.account-notice p {
  margin: 0;
}

.alert-success {
  margin-bottom: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(0, 255, 136, 0.3);
  border-radius: 8px;
  color: #84f5bd;
  background: rgba(0, 255, 136, 0.08);
}

.logout-form,
.footer-logout-form {
  margin: 0;
}

.logout-form button,
.footer-logout-form button {
  width: 100%;
  border: 0;
  color: inherit;
  background: transparent;
  font: inherit;
  text-align: start;
  cursor: pointer;
}

.profile-dropdown .logout-form button {
  display: block;
  padding: 0.75rem 1rem;
}

.admin-section,
.legal-section {
  padding: 4rem 0 6rem;
}

.admin-stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 1.25rem;
  border-block: 1px solid var(--border);
}

.admin-stats > div {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1.25rem;
  border-inline-end: 1px solid var(--border);
}

.admin-stats > div:last-child {
  border-inline-end: 0;
}

.admin-stats strong {
  font-size: 1.75rem;
  color: var(--gold);
}

.admin-stats span,
.admin-table small {
  display: block;
  color: var(--text-muted);
}

.admin-toolbar {
  margin: 1.25rem 0;
}

.admin-toolbar form {
  display: flex;
  max-width: 620px;
  gap: 0.75rem;
}

.admin-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--border);
  border-radius: 8px;
}

.admin-table {
  width: 100%;
  border-collapse: collapse;
  background: rgba(15, 20, 30, 0.82);
}

.admin-table th,
.admin-table td {
  padding: 0.9rem 1rem;
  border-bottom: 1px solid var(--border);
  text-align: start;
  white-space: nowrap;
}

.admin-table tbody tr:last-child td {
  border-bottom: 0;
}

.status-chip {
  display: inline-flex;
  margin: 0.1rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid var(--border);
  border-radius: 4px;
  font-size: 0.78rem;
}

.status-chip.ok { color: #84f5bd; border-color: rgba(0, 255, 136, 0.3); }
.status-chip.off { color: #ff8e9f; border-color: rgba(233, 69, 96, 0.4); }
.status-chip.admin { color: var(--gold); border-color: rgba(248, 213, 109, 0.35); }
.status-chip.warn { color: #f3bd69; border-color: rgba(243, 189, 105, 0.35); }

.admin-actions form {
  display: flex;
  gap: 0.4rem;
}

.admin-actions button {
  width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-primary);
  background: var(--surface);
  cursor: pointer;
}

.pagination {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  margin-top: 1.25rem;
}

.pagination a {
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 4px;
  color: var(--text-secondary);
}

.pagination a.active {
  border-color: var(--gold);
  color: #111;
  background: var(--gold);
}

.legal-content {
  max-width: 840px;
}

.legal-content h1 {
  margin-bottom: 0.5rem;
  font-size: clamp(2rem, 5vw, 3.25rem);
}

.legal-content h2 {
  margin: 2rem 0 0.6rem;
  font-size: 1.25rem;
}

.legal-content p {
  color: var(--text-secondary);
  line-height: 1.9;
}

@media (max-width: 760px) {
  .account-grid,
  .admin-stats {
    grid-template-columns: 1fr;
  }

  .account-notice,
  .admin-toolbar form {
    align-items: stretch;
    flex-direction: column;
  }

  .admin-stats > div {
    border-inline-end: 0;
    border-bottom: 1px solid var(--border);
  }

  .admin-stats > div:last-child {
    border-bottom: 0;
  }
}