/* ====== COMMON VARIABLES ====== */
:root {
  --accent: #6c63ff;
  --accent-light: #d6d8ff;
  --accent-dark: #7c72ff;
  --bg: #fafafa;
  --text-primary: #3e3d3a;
  --border-color: #dcdcdc;
  --border-light: #e0e0e0;
  --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.15);
  --shadow-lg: 0 4px 24px rgba(0,0,0,0.12);
  --headerH: 100px;
  --panelW: 260px;
}

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

body {
  font-family: Inter, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: var(--headerH);
}

/* ====== HEADER ====== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--headerH);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  padding: 20px 24px 0;
  z-index: 100;
  background: transparent;
  pointer-events: none;
}

.header * {
  pointer-events: auto;
}

.leftControls,
.rightControls {
  display: flex;
  gap: 16px;
  align-items: center;
}

.leftControls {
  gap: 18px;
}

@media (max-width: 600px) {
  .rightControls {
    flex-direction: column;
    align-items: flex-end;
    gap: 8px;
    margin-top: 8px;
  }
}

/* ====== HAMBURGER MENU ====== */
.hamburger {
  width: 44px;
  height: 44px;
  border: none;
  background: #fff;
  cursor: pointer;
  transition: all .3s ease;
  color: var(--text-primary);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}

.hamburger span {
  display: block;
  position: relative;
  width: 24px;
  height: 3px;
  background: var(--text-primary);
  transition: all .3s ease;
  border-radius: 1.5px;
}

.hamburger span::before,
.hamburger span::after {
  content: '';
  position: absolute;
  left: 0;
  width: 24px;
  height: 3px;
  background: var(--text-primary);
  transition: all .3s ease;
  border-radius: 1.5px;
}

.hamburger span::before {
  top: -8px;
}

.hamburger span::after {
  top: 8px;
}

.hamburger.active {
  background: var(--accent);
  box-shadow: 0 2px 8px rgba(108,99,255,0.3);
}

.hamburger.active span {
  background: transparent;
}

.hamburger.active span::before {
  top: 0;
  transform: rotate(45deg);
  background: #fff;
}

.hamburger.active span::after {
  top: 0;
  transform: rotate(-45deg);
  background: #fff;
}

@media (hover: hover) {
  .hamburger:hover {
    background: #f0f0f0;
    box-shadow: 0 2px 6px rgba(0,0,0,0.15);
  }
  
  .hamburger.active:hover {
    background: var(--accent-dark);
    box-shadow: 0 2px 10px rgba(108,99,255,0.4);
  }
}

/* ====== TITLE DROPDOWN ====== */
.title-wrapper {
  position: relative;
}

.title-button {
  font-size: 2.8rem;
  font-weight: 600;
  background: none;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-primary);
  transition: all 0.2s ease;
  padding: 4px 8px;
  margin: -4px -8px;
  border-radius: 8px;
}

.title-button:hover {
  background: rgba(0,0,0,0.05);
}

.title-button:active {
  background: rgba(0,0,0,0.08);
}

.chevron {
  transition: transform 0.3s ease;
  opacity: 0.5;
}

.title-button:hover .chevron {
  opacity: 0.8;
}

.title-button.active .chevron {
  transform: rotate(180deg);
}

.games-dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  background: #fff;
  border-radius: 12px;
  box-shadow: var(--shadow-lg);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
  padding: 8px;
}

.games-dropdown.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.game-item {
  display: flex;
  flex-direction: column;
  padding: 12px 16px;
  text-decoration: none;
  color: var(--text-primary);
  border-radius: 8px;
  transition: all 0.2s ease;
  position: relative;
}

.game-item:hover {
  background: #f5f5f5;
}

.game-item.active {
  background: var(--accent-light);
  color: var(--accent);
}

.game-item.active::before {
  content: '';
  position: absolute;
  left: 4px;
  top: 50%;
  transform: translateY(-50%);
  width: 3px;
  height: 24px;
  background: var(--accent);
  border-radius: 2px;
}

.game-name {
  font-weight: 600;
  font-size: 1.1rem;
  margin-bottom: 2px;
}

.game-desc {
  font-size: 0.85rem;
  opacity: 0.7;
}

@media (max-width: 600px) {
  .title-button {
    font-size: 2rem;
  }
  
  .games-dropdown {
    left: -8px;
    right: -8px;
    width: auto;
    min-width: unset;
  }
}

/* ====== BUTTONS ====== */
.btn {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  font-weight: 600;
  transition: all .15s ease;
}

.btn-primary {
  padding: 10px 22px;
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(144,136,255,.3);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(144,136,255,.4);
}

.btn-secondary {
  padding: 8px 22px;
  background: #e0e0e0;
  color: var(--text-primary);
}

.btn-secondary:hover {
  background: #d4d4d4;
  transform: translateY(-1px);
}

.btn-small {
  padding: 6px 14px;
}

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

/* ====== HELP LINK ====== */
#helpLink {
  color: var(--text-primary);
  text-decoration: none;
  cursor: pointer;
  font-weight: 600;
  opacity: 0.7;
  transition: all .15s ease;
  position: relative;
}

#helpLink:hover {
  opacity: 1;
  transform: translateY(-1px);
}

#helpLink::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transition: transform .2s ease;
}

#helpLink:hover::after {
  transform: scaleX(1);
}

/* ====== SETTINGS PANEL ====== */
#panel {
  position: fixed;
  top: 0;
  left: 0;
  height: 100%;
  width: var(--panelW);
  background: #fff;
  border-right: 1px solid #dadada;
  transform: translateX(-100%);
  transition: .25s ease;
  z-index: 90;
  padding: 90px 22px 30px;
  overflow-y: auto;
}

#panel.open {
  transform: translateX(0);
}

.setting {
  margin-bottom: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.setting label {
  font-weight: 600;
}

/* ====== STEPPER ====== */
.stepper {
  display: flex;
  align-items: center;
  gap: 12px;
}

.stepper button {
  width: 36px;
  height: 36px;
  border: none;
  border-radius: 8px;
  background: #e0e0e0;
  font-size: 1.2rem;
  cursor: pointer;
  font-weight: 600;
  transition: all .15s ease;
}

.stepper button:hover {
  background: #d4d4d4;
  transform: scale(1.05);
}

.stepper button:active {
  transform: scale(0.95);
}

.stepper span {
  min-width: 48px;
  text-align: center;
  font-weight: 600;
  font-size: 1.05rem;
}

/* ====== TOGGLE SWITCH ====== */
.switch {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 26px;
}

.switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background: #ccc;
  border-radius: 26px;
  transition: .2s;
}

.slider:before {
  content: '';
  position: absolute;
  left: 2px;
  bottom: 2px;
  width: 22px;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  transition: .2s;
}

input:checked + .slider {
  background: var(--accent);
}

input:checked + .slider:before {
  transform: translateX(20px);
}

/* ====== CORRECT BADGE ====== */
.correct-badge {
  position: fixed;
  right: 20px;
  bottom: 20px;
  z-index: 100;
  background: #4a5568;
  color: #fff;
  padding: 12px 20px;
  border-radius: 12px;
  box-shadow: 0 4px 12px rgba(0,0,0,.15);
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  opacity: 0;
  transform: translateY(10px);
  transition: opacity .3s, transform .3s;
  pointer-events: none;
}

.correct-badge.show {
  opacity: 1;
  transform: translateY(0);
}

.correct-icon {
  font-size: 1.3rem;
}

.correct-text {
  font-size: 1.05rem;
}

/* ====== FOOTER ====== */
.footer {
  margin: 24px 0 12px;
  font-size: .85rem;
  text-align: center;
}

.footer a {
  color: var(--text-primary);
  opacity: .6;
  text-decoration: none;
  transition: opacity .15s;
}

.footer a:hover {
  opacity: .8;
}