/* ============================================================
   flj-controls.css — 2026 UI controls
   Buttons, nav dropdowns, segment tabs, selects, mobile drawer
   ============================================================ */

:root {
  --ctrl-h: 44px;
  --ctrl-h-sm: 38px;
  --ctrl-radius: 14px;
  --ctrl-radius-pill: 999px;
  --ctrl-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  --ctrl-shadow-hover: 0 8px 28px rgba(0, 0, 0, 0.35);
  --ctrl-glow-primary: 0 4px 24px rgba(230, 57, 70, 0.45);
  --ctrl-glow-mint: 0 4px 20px rgba(0, 245, 212, 0.25);
  --ctrl-transition: 0.22s cubic-bezier(0.34, 1.1, 0.64, 1);
}

/* ── Primary buttons ── */
.btn-red,
.btn-primary,
.btn-hero-primary,
.login-btn,
.pricing-btn:not(.btn-free),
.quiz-btn-primary,
.kana-quiz-btn,
.course-btn,
.rank-btn,
.wp-btn,
.lg-btn:not(.lg-btn-ghost),
.trace-done-btn,
.mark-learned-btn:not(.locked):not(:disabled),
.kc-next-btn,
.btn-nav-red,
.fljr-btn,
.pricing-btn[type="submit"],
button.pricing-btn {
  position: relative;
  overflow: hidden;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--ctrl-h);
  padding: 12px 24px !important;
  border: none !important;
  border-radius: var(--ctrl-radius) !important;
  font-family: 'Space Grotesk', sans-serif !important;
  font-size: 0.9rem !important;
  font-weight: 700 !important;
  letter-spacing: 0.02em;
  color: #fff !important;
  text-decoration: none;
  background: linear-gradient(135deg, var(--red) 0%, #ff4d5a 55%, var(--sakura) 100%) !important;
  box-shadow: var(--ctrl-glow-primary), inset 0 1px 0 rgba(255, 255, 255, 0.18);
  transition: transform var(--ctrl-transition), box-shadow var(--ctrl-transition), filter var(--ctrl-transition) !important;
  cursor: pointer;
}

.btn-red::before,
.btn-primary::before,
.btn-hero-primary::before,
.login-btn::before,
.btn-nav-red::before,
.pricing-btn:not(.btn-free)::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(255, 255, 255, 0.14) 50%, transparent 60%);
  transform: translateX(-120%);
  transition: transform 0.55s ease;
  pointer-events: none;
}

.btn-red:hover::before,
.btn-primary:hover::before,
.btn-hero-primary:hover::before,
.login-btn:hover::before,
.btn-nav-red:hover::before,
.pricing-btn:not(.btn-free):hover::before {
  transform: translateX(120%);
}

.btn-red:hover,
.btn-primary:hover,
.btn-hero-primary:hover,
.login-btn:hover,
.pricing-btn:not(.btn-free):hover,
.quiz-btn-primary:hover:not(:disabled),
.kana-quiz-btn:hover,
.course-btn:hover,
.btn-nav-red:hover,
.fljr-btn:hover {
  transform: translateY(-2px) scale(1.02) !important;
  box-shadow: 0 12px 36px rgba(230, 57, 70, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.22) !important;
  filter: brightness(1.05);
}

.btn-red:active,
.btn-primary:active,
.btn-hero-primary:active,
.login-btn:active,
.btn-nav-red:active,
.pricing-btn:active {
  transform: translateY(0) scale(0.98) !important;
}

/* Secondary / ghost buttons */
.btn-ghost,
.btn-hero-ghost,
.btn-nav-ghost,
.quiz-btn-ghost,
.fc-btn,
.sen-btn,
.match-new-btn,
.lg-btn-ghost,
.struct-nav-btn,
.trace-tool,
.kanji-action-btn,
.kanji-nav-btn,
.kg-hint-btn,
.nav-login-btn,
.pricing-btn.btn-free {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--ctrl-h-sm);
  padding: 10px 20px !important;
  border-radius: var(--ctrl-radius) !important;
  font-family: 'Space Grotesk', sans-serif !important;
  font-size: 0.88rem !important;
  font-weight: 600 !important;
  color: var(--text2) !important;
  text-decoration: none;
  background: rgba(255, 255, 255, 0.04) !important;
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--ctrl-shadow);
  transition: transform var(--ctrl-transition), border-color 0.2s, background 0.2s, color 0.2s, box-shadow 0.2s !important;
  cursor: pointer;
}

.btn-ghost:hover,
.btn-hero-ghost:hover,
.btn-nav-ghost:hover,
.quiz-btn-ghost:hover,
.fc-btn:hover,
.sen-btn:hover,
.match-new-btn:hover,
.lg-btn-ghost:hover,
.struct-nav-btn:hover,
.trace-tool:hover,
.kanji-action-btn:hover,
.kanji-nav-btn:hover,
.kg-hint-btn:hover,
.nav-login-btn:hover,
.pricing-btn.btn-free:hover {
  color: #fff !important;
  border-color: rgba(255, 101, 132, 0.45) !important;
  background: rgba(255, 101, 132, 0.1) !important;
  transform: translateY(-2px) !important;
  box-shadow: var(--ctrl-shadow-hover), 0 0 0 1px rgba(255, 101, 132, 0.12) !important;
}

/* Outline accent variant */
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: var(--ctrl-h-sm);
  padding: 10px 20px;
  border-radius: var(--ctrl-radius);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--mint) !important;
  text-decoration: none;
  background: rgba(0, 245, 212, 0.06);
  border: 1px solid rgba(0, 245, 212, 0.35);
  transition: var(--ctrl-transition);
}
.btn-outline:hover {
  background: rgba(0, 245, 212, 0.14);
  box-shadow: var(--ctrl-glow-mint);
  transform: translateY(-2px);
}

/* Icon-only compact */
.btn-icon {
  width: var(--ctrl-h-sm);
  height: var(--ctrl-h-sm);
  min-height: 0;
  padding: 0 !important;
  border-radius: 12px !important;
}

/* Disabled */
button:disabled,
.btn-red:disabled,
.quiz-btn-primary:disabled,
.mark-learned-btn.locked,
.mark-learned-btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
  filter: grayscale(0.3);
}

/* ── Segment / tab groups (filters, kana tabs, lesson levels) ── */
.flj-segment,
.kana-tabs,
.level-filters,
.cat-filters,
.phrase-cats,
.lesson-filters,
.lg-tabs,
.quiz-set-btns {
  display: inline-flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 4px;
  padding: 5px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 16px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.kana-tab,
.level-btn,
.cat-btn,
.lg-tab,
.quiz-opt,
.day-master-btn {
  position: relative;
  min-height: 36px;
  padding: 8px 16px !important;
  border: none !important;
  border-radius: 11px !important;
  font-family: 'Space Grotesk', sans-serif !important;
  font-size: 0.82rem !important;
  font-weight: 600 !important;
  color: var(--text3) !important;
  background: transparent !important;
  box-shadow: none !important;
  transition: color 0.2s, background 0.25s, transform 0.2s, box-shadow 0.25s !important;
  cursor: pointer;
  white-space: nowrap;
}

.kana-tab:hover,
.level-btn:hover,
.cat-btn:hover,
.lg-tab:hover {
  color: #fff !important;
  background: rgba(255, 255, 255, 0.06) !important;
  transform: none !important;
}

.kana-tab.active,
.level-btn.active,
.cat-btn.active,
.lg-tab.active {
  color: #fff !important;
  background: linear-gradient(135deg, var(--red), #ff4d5a) !important;
  box-shadow: 0 4px 16px rgba(230, 57, 70, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.2) !important;
}

/* Quiz option chips */
.quiz-opt {
  min-height: 42px;
  padding: 10px 18px !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  border-radius: 12px !important;
  background: rgba(255, 255, 255, 0.03) !important;
}
.quiz-opt:hover {
  border-color: rgba(255, 101, 132, 0.4) !important;
  background: rgba(255, 101, 132, 0.08) !important;
}
.quiz-opt.selected,
.quiz-opt.correct {
  border-color: rgba(0, 245, 212, 0.5) !important;
  background: rgba(0, 245, 212, 0.12) !important;
  color: var(--mint) !important;
  box-shadow: var(--ctrl-glow-mint);
}
.quiz-opt.wrong {
  border-color: rgba(230, 57, 70, 0.5) !important;
  background: rgba(230, 57, 70, 0.1) !important;
}

/* ── Nav dropdown triggers ── */
.nav-drop-trigger {
  min-height: 36px;
  padding: 8px 14px !important;
  border-radius: var(--ctrl-radius-pill) !important;
  border: 1px solid transparent !important;
  font-size: 0.84rem !important;
  font-weight: 600 !important;
  color: var(--text3) !important;
  background: transparent !important;
  gap: 6px !important;
  transition: color 0.2s, background 0.2s, border-color 0.2s, box-shadow 0.2s !important;
}

.nav-drop-trigger:hover,
.nav-group.open .nav-drop-trigger,
.nav-drop-trigger.active {
  color: #fff !important;
  background: rgba(255, 255, 255, 0.06) !important;
  border-color: rgba(255, 255, 255, 0.1) !important;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.nav-chevron {
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-top: -2px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  opacity: 0.75;
  transition: transform 0.25s cubic-bezier(0.34, 1.2, 0.64, 1);
  font-size: 0;
  line-height: 0;
}

.nav-group.open .nav-chevron,
.nav-group:hover .nav-chevron {
  transform: rotate(225deg);
  margin-top: 2px;
}

/* ── Nav dropdown panels ── */
.nav-dropdown {
  min-width: 300px !important;
  padding: 10px !important;
  border-radius: 18px !important;
  background: rgba(14, 16, 32, 0.92) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  box-shadow:
    0 4px 0 rgba(230, 57, 70, 0.35),
    0 28px 70px rgba(0, 0, 0, 0.55),
    inset 0 1px 0 rgba(255, 255, 255, 0.06) !important;
  transform: translateX(-50%) translateY(12px) scale(0.96) !important;
  transition: opacity 0.22s ease, transform 0.28s cubic-bezier(0.34, 1.2, 0.64, 1), visibility 0.22s !important;
}

.nav-group.open .nav-dropdown,
.nav-group:hover .nav-dropdown {
  transform: translateX(-50%) translateY(0) scale(1) !important;
}

.nav-dropdown:not(.nav-dropdown--cards) a {
  display: flex !important;
  align-items: center;
  gap: 12px !important;
  padding: 11px 12px !important;
  border-radius: 12px !important;
  border: 1px solid transparent;
  transition: background 0.18s, border-color 0.18s, transform 0.18s !important;
}

.nav-dropdown:not(.nav-dropdown--cards) a:hover {
  background: rgba(255, 101, 132, 0.1) !important;
  border-color: rgba(255, 101, 132, 0.2) !important;
  transform: translateX(4px);
  color: #fff !important;
}

.nav-dropdown:not(.nav-dropdown--cards) a.active {
  background: rgba(230, 57, 70, 0.15) !important;
  border-color: rgba(230, 57, 70, 0.35) !important;
  color: var(--sakura) !important;
}

.nav-drop-icon-wrap {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.08);
  font-size: 1rem;
  transition: background 0.2s, border-color 0.2s;
}

.nav-dropdown a:hover .nav-drop-icon-wrap {
  background: rgba(230, 57, 70, 0.15);
  border-color: rgba(230, 57, 70, 0.3);
}

.nav-drop-icon {
  width: auto !important;
  text-align: center;
}

.nav-drop-text {
  display: flex;
  flex-direction: column;
  gap: 2px;
  min-width: 0;
}

.nav-drop-title {
  font-size: 0.86rem;
  font-weight: 700;
  color: inherit;
  line-height: 1.2;
}

.nav-drop-desc {
  font-size: 0.72rem;
  font-weight: 500;
  color: var(--text3);
  line-height: 1.3;
}

.nav-dropdown a:hover .nav-drop-desc,
.nav-dropdown a.active .nav-drop-desc {
  color: rgba(255, 255, 255, 0.55);
}

.nav-drop-label {
  font-size: 0.62rem !important;
  font-weight: 800 !important;
  letter-spacing: 0.14em !important;
  text-transform: uppercase !important;
  color: var(--text3) !important;
  padding: 8px 12px 6px !important;
}

/* Top-level nav links match dropdown trigger style */
.nav-links > a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  padding: 8px 12px !important;
  border-radius: var(--ctrl-radius-pill);
  font-size: 0.84rem !important;
  font-weight: 600 !important;
  color: var(--text3) !important;
  border: 1px solid transparent;
  transition: color 0.2s, background 0.2s, border-color 0.2s;
}

.nav-links > a::after { display: none !important; }

.nav-links > a:hover,
.nav-links > a.active {
  color: #fff !important;
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.08);
}

/* Nav CTA pills */
.nav-pill,
.nav-rank-pill {
  border-radius: var(--ctrl-radius-pill) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  background: rgba(255, 255, 255, 0.04) !important;
  backdrop-filter: blur(10px);
  padding: 6px 14px !important;
  font-size: 0.78rem !important;
  font-weight: 700 !important;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.main-nav--auth .nav-stats-chip .nav-pill,
.main-nav--auth .nav-stats-chip .nav-rank-pill {
  padding: 0 !important;
  border: none !important;
  background: transparent !important;
  backdrop-filter: none;
}

.nav-pill:hover,
.nav-rank-pill:hover {
  border-color: rgba(255, 101, 132, 0.35) !important;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
}

.btn-nav-red {
  min-height: var(--ctrl-h-sm) !important;
  padding: 10px 20px !important;
  border-radius: var(--ctrl-radius-pill) !important;
  font-size: 0.84rem !important;
}

.btn-nav-ghost {
  min-height: var(--ctrl-h-sm) !important;
  padding: 10px 18px !important;
  border-radius: var(--ctrl-radius-pill) !important;
}

/* Hamburger → X animation */
.nav-hamburger {
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background: rgba(255, 255, 255, 0.04);
  transition: background 0.2s, border-color 0.2s;
}

.nav-hamburger:hover {
  background: rgba(255, 101, 132, 0.1);
  border-color: rgba(255, 101, 132, 0.3);
}

.nav-hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-hamburger.is-open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Mobile nav drawer ── */
.mobile-nav-drawer {
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  z-index: 999;
  max-height: calc(100vh - 64px);
  overflow-y: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  padding: 20px 24px 28px;
  display: flex;
  flex-direction: column;
  gap: 22px;
  background: rgba(10, 11, 22, 0.96);
  backdrop-filter: blur(24px) saturate(1.2);
  -webkit-backdrop-filter: blur(24px) saturate(1.2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  animation: mobileNavIn 0.28s cubic-bezier(0.34, 1.2, 0.64, 1);
}

@keyframes mobileNavIn {
  from { opacity: 0; transform: translateY(-12px); }
  to { opacity: 1; transform: translateY(0); }
}

.mobile-nav-section-label {
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text3);
  margin-bottom: 6px;
  font-family: 'Space Grotesk', sans-serif;
}

.mobile-nav-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 12px;
  font-size: 0.92rem;
  font-weight: 600;
  font-family: 'Space Grotesk', sans-serif;
  color: var(--text2);
  text-decoration: none;
  border: 1px solid transparent;
  transition: background 0.18s, border-color 0.18s, color 0.18s;
}

.mobile-nav-link:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.08);
}

.mobile-nav-link.is-active {
  color: var(--sakura);
  background: rgba(230, 57, 70, 0.12);
  border-color: rgba(230, 57, 70, 0.3);
}

.mobile-nav-cta {
  margin-top: 8px;
  display: block;
  text-align: center;
  padding: 14px 20px;
  border-radius: var(--ctrl-radius);
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  color: #fff;
  background: linear-gradient(135deg, var(--red), #ff4d5a);
  box-shadow: var(--ctrl-glow-primary);
  transition: transform var(--ctrl-transition), box-shadow 0.2s;
}

.mobile-nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(230, 57, 70, 0.5);
}

/* ── Native selects & form fields ── */
select,
.lg-select,
.flj-select {
  min-height: var(--ctrl-h);
  padding: 12px 42px 12px 16px !important;
  border-radius: var(--ctrl-radius) !important;
  font-size: 0.88rem !important;
  font-weight: 600 !important;
  background-color: rgba(0, 0, 0, 0.35) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s !important;
}

select:hover,
.lg-select:hover {
  border-color: rgba(255, 101, 132, 0.4) !important;
  background-color: rgba(0, 0, 0, 0.45) !important;
}

select:focus,
.lg-select:focus {
  border-color: var(--mint) !important;
  box-shadow: 0 0 0 3px rgba(0, 245, 212, 0.18), var(--ctrl-glow-mint) !important;
}

.flj-select-wrap {
  position: relative;
  display: inline-block;
  width: 100%;
  max-width: 320px;
}

.flj-select-wrap::after {
  content: '';
  position: absolute;
  right: 16px;
  top: 50%;
  width: 8px;
  height: 8px;
  margin-top: -5px;
  border-right: 2px solid var(--sakura);
  border-bottom: 2px solid var(--sakura);
  transform: rotate(45deg);
  pointer-events: none;
}

.login-input,
input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="number"],
textarea,
.quiz-blank-input {
  min-height: var(--ctrl-h);
  padding: 12px 16px !important;
  border-radius: var(--ctrl-radius) !important;
  font-size: 0.9rem !important;
}

.login-btn {
  width: 100%;
  margin-top: 8px;
}

/* Flashcard action row */
.fc-actions .fc-btn,
.fc-btns .fc-btn {
  min-width: 120px;
}

/* Rank paywall CTA inside modal */
.premium-lock-btns .btn-red {
  width: 100%;
  border-radius: var(--ctrl-radius) !important;
}

/* Admin inline select */
.admin-rank-select {
  min-height: 34px !important;
  padding: 6px 32px 6px 10px !important;
  font-size: 0.8rem !important;
  border-radius: 10px !important;
}

@media (max-width: 768px) {
  .btn-hero-primary,
  .btn-hero-ghost {
    width: 100%;
    justify-content: center;
  }

  .flj-segment,
  .kana-tabs,
  .level-filters,
  .cat-filters {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  .btn-red::before,
  .btn-primary::before,
  .btn-hero-primary::before,
  .login-btn::before,
  .btn-nav-red::before {
    display: none;
  }
  .nav-dropdown,
  .mobile-nav-drawer {
    animation: none;
    transition: none;
  }
}