/* components.css — Shared UI components: buttons, cards, badges, inputs, keyboard, toggles */

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--ease);
  text-decoration: none;
  line-height: 1.4;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary { background: var(--red); color: #fff; }
.btn--primary:hover { background: var(--red-light); color: #fff; }

.btn--navy { background: var(--navy); color: #fff; }
.btn--navy:hover { background: var(--navy-light); color: #fff; }

.btn--green { background: var(--green); color: #fff; }
.btn--green:hover { background: var(--green-light); color: #fff; }

.btn--orange { background: var(--orange); color: #fff; }
.btn--orange:hover { background: var(--orange-light); color: #fff; }

.btn--purple { background: var(--purple); color: #fff; }
.btn--purple:hover { opacity: 0.9; color: #fff; }

.btn--outline {
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text);
}
.btn--outline:hover {
  border-color: var(--red);
  color: var(--red);
  background: transparent;
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  padding: 8px 14px;
}
.btn--ghost:hover { background: var(--bg-alt); color: var(--text); }

.btn--sm { padding: 6px 14px; font-size: 0.85rem; border-radius: var(--radius-sm); }
.btn--lg { padding: 14px 28px; font-size: 1.05rem; }
.btn--block { width: 100%; }
.btn--icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--radius);
  font-size: 1.1rem;
}

.btn[disabled] {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none;
}

/* ===== CARDS ===== */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--sp-6);
  box-shadow: var(--shadow);
  transition: all var(--ease);
}
.card:hover {
  box-shadow: var(--shadow-hover);
}
.card--flat {
  box-shadow: none;
}
.card--flat:hover {
  box-shadow: none;
}
.card--accent-top {
  border-top: 3px solid var(--red);
}
.card--clickable {
  cursor: pointer;
}
.card--clickable:hover {
  transform: translateY(-2px);
}

/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  line-height: 1.5;
}
.badge--verb { background: #dbeafe; color: #1e40af; }
.badge--noun { background: #dcfce7; color: #166534; }
.badge--adj { background: #ffedd5; color: #9a3412; }
.badge--adverb { background: #fef3c7; color: #92400e; }
.badge--phrase { background: #ede9fe; color: #5b21b6; }
.badge--number { background: #e0e7ff; color: #3730a3; }
.badge--pronoun { background: #fce7f3; color: #9d174d; }
.badge--conjunction { background: #ccfbf1; color: #0f766e; }
.badge--particle { background: #f1f5f9; color: #475569; }

[data-theme="dark"] .badge--verb { background: #1e3a5f; color: #93c5fd; }
[data-theme="dark"] .badge--noun { background: #14532d; color: #86efac; }
[data-theme="dark"] .badge--adj { background: #78350f; color: #fbbf24; }
[data-theme="dark"] .badge--adverb { background: #713f12; color: #fcd34d; }
[data-theme="dark"] .badge--phrase { background: #3b0764; color: #c4b5fd; }
[data-theme="dark"] .badge--number { background: #312e81; color: #a5b4fc; }
[data-theme="dark"] .badge--pronoun { background: #831843; color: #f9a8d4; }
[data-theme="dark"] .badge--conjunction { background: #134e4a; color: #5eead4; }
[data-theme="dark"] .badge--particle { background: #334155; color: #94a3b8; }

/* ===== STRENGTH DOTS ===== */
.strength-dots {
  display: inline-flex;
  gap: 4px;
  align-items: center;
}
.strength-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--border);
}
.strength-dot.active.strong { background: var(--green); }
.strength-dot.active.medium { background: var(--orange); }
.strength-dot.active.weak { background: var(--error); }

/* ===== FORM INPUTS ===== */
.input {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color var(--ease), box-shadow var(--ease);
}
.input:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15);
}
.input::placeholder { color: var(--text-muted); }

.select {
  padding: 10px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius);
  background: var(--input-bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  cursor: pointer;
  transition: border-color var(--ease);
}
.select:focus {
  outline: none;
  border-color: var(--blue);
}

/* ===== POLISH KEYBOARD ===== */
.polish-keyboard {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  padding: var(--sp-3) 0;
}
.polish-keyboard .key-btn {
  width: 40px;
  height: 40px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--card-bg);
  color: var(--text);
  font-size: 1.1rem;
  font-family: var(--font);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--ease);
}
.polish-keyboard .key-btn:hover {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

/* ===== TOGGLE SWITCH ===== */
.toggle {
  position: relative;
  width: 48px;
  height: 26px;
  background: var(--border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--ease);
  border: none;
  flex-shrink: 0;
}
.toggle::after {
  content: '';
  position: absolute;
  top: 3px;
  left: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: #fff;
  transition: transform var(--ease);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}
.toggle.active { background: var(--green); }
.toggle.active::after { transform: translateX(22px); }

/* ===== DARK MODE TOGGLE (fixed position) ===== */
.theme-toggle {
  position: fixed;
  bottom: var(--sp-6);
  right: var(--sp-6);
  z-index: 999;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--card-bg);
  border: 1.5px solid var(--border);
  color: var(--text);
  font-size: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
  transition: all var(--ease);
}
.theme-toggle:hover {
  box-shadow: var(--shadow-hover);
  transform: scale(1.05);
}

/* ===== FEEDBACK STATES ===== */
.feedback-correct {
  background: rgba(40,167,69,0.1) !important;
  border-color: var(--green) !important;
}
.feedback-wrong {
  background: rgba(220,53,69,0.1) !important;
  border-color: var(--error) !important;
}
.feedback-almost {
  background: rgba(240,173,78,0.1) !important;
  border-color: var(--orange) !important;
}

/* ===== PILL / CHIP ===== */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 5px 12px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 500;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text-secondary);
  cursor: pointer;
  transition: all var(--ease);
}
.chip:hover, .chip.active {
  background: var(--red);
  color: #fff;
  border-color: var(--red);
}

/* ===== SECTION HEADER ===== */
.section-header {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  margin-bottom: var(--sp-6);
}
.section-header h2 {
  margin: 0;
}
.section-header .count {
  background: var(--bg-alt);
  padding: 2px 10px;
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 600;
}

/* ===== EMPTY STATE ===== */
.empty-state {
  text-align: center;
  padding: var(--sp-12) var(--sp-6);
  color: var(--text-muted);
}
.empty-state .icon { font-size: 2.5rem; margin-bottom: var(--sp-4); }
.empty-state p { font-size: 1rem; margin: 0; }

/* ===== EXAMPLE BOX (grammar) ===== */
.example-box {
  background: var(--bg-alt);
  border-left: 4px solid var(--orange);
  border-radius: 0 var(--radius) var(--radius) 0;
  padding: var(--sp-4) var(--sp-5);
  margin: var(--sp-4) 0;
}
.example-box .polish {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: var(--sp-1);
}
.example-box .english {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-style: italic;
}

/* ===== VOCAB CALLOUT BOX ===== */
.vocab-box {
  background: rgba(40,167,69,0.08);
  border: 1px solid rgba(40,167,69,0.2);
  border-radius: var(--radius);
  padding: var(--sp-4) var(--sp-5);
  margin: var(--sp-4) 0;
}
[data-theme="dark"] .vocab-box {
  background: rgba(40,167,69,0.1);
  border-color: rgba(40,167,69,0.25);
}
.vocab-box .label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--green);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--sp-2);
}

/* ===== PROGRESS BAR ===== */
.progress-bar {
  width: 100%;
  height: 8px;
  background: var(--bg-alt);
  border-radius: var(--radius-full);
  overflow: hidden;
}
.progress-bar__fill {
  height: 100%;
  background: var(--red);
  border-radius: var(--radius-full);
  transition: width 0.4s ease;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 480px) {
  .btn { padding: 9px 16px; font-size: 0.9rem; }
  .btn--lg { padding: 12px 22px; font-size: 1rem; }
  .card { padding: var(--sp-4); border-radius: var(--radius); }
  .polish-keyboard .key-btn { width: 36px; height: 36px; font-size: 1rem; }
  .theme-toggle { width: 40px; height: 40px; bottom: var(--sp-4); right: var(--sp-4); }
}