/* ============================================
   TRAILbuddy · Components
   Tlačidlá, inputy, karty, modalky, toast, chipy.
   Všetko použité z prototypov, konsolidované.
   ============================================ */

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 14px 28px;
  border: none;
  font-family: var(--font-display);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  cursor: pointer;
  border-radius: var(--r-sm);
  transition: all var(--t-normal);
  background: transparent;
  color: var(--bone);
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}

.btn-primary {
  background: var(--signal);
  color: var(--earth);
}
.btn-primary:hover {
  background: var(--signal-2);
  transform: translateX(2px);
}

.btn-secondary {
  background: var(--earth-3);
  color: var(--bone);
  border: 1px solid var(--border);
}
.btn-secondary:hover {
  background: var(--earth-4);
  border-color: var(--border-strong);
}

.btn-ghost {
  background: transparent;
  color: var(--bone-dim);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  color: var(--bone);
  border-color: var(--border-strong);
}

.btn-danger {
  background: var(--danger-dim);
  color: var(--danger);
  border: 1px solid var(--danger);
}
.btn-danger:hover {
  background: var(--danger);
  color: var(--bone);
}

.btn-sm {
  padding: 8px 16px;
  font-size: var(--fs-xs);
}

.btn-lg {
  padding: 18px 36px;
  font-size: var(--fs-sm);
}

.btn-full { width: 100%; }

.btn-icon {
  width: 40px;
  height: 40px;
  padding: 0;
  border-radius: var(--r-full);
}

/* ===== CHIPS (toggleable) ===== */
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 10px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-full);
  color: var(--bone-dim);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--t-fast);
  user-select: none;
}
.chip:hover {
  background: var(--surface-hover);
  color: var(--bone);
}
.chip.active {
  background: var(--signal);
  color: var(--earth);
  border-color: var(--signal);
  font-weight: 700;
}

/* ===== CHOICE CARDS (veľké výberové karty z onboardingu) ===== */
.choice-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-5);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  cursor: pointer;
  transition: all var(--t-normal);
  text-align: center;
  min-height: 120px;
}
.choice-card:hover {
  background: var(--surface-hover);
  border-color: var(--border-strong);
  transform: translateY(-2px);
}
.choice-card.active {
  background: rgba(255, 90, 31, 0.1);
  border-color: var(--signal);
  box-shadow: 0 0 0 1px var(--signal) inset;
}
.choice-card-icon {
  font-size: var(--fs-xl);
  line-height: 1;
}
.choice-card-label {
  font-family: var(--font-display);
  font-size: var(--fs-sm);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
}
.choice-card-sub {
  font-size: var(--fs-xs);
  color: var(--bone-dim);
}

.choice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: var(--space-3);
}

/* ===== INPUTS ===== */
.field {
  margin-bottom: var(--space-5);
}

.field label {
  display: block;
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wider);
  text-transform: uppercase;
  color: var(--bone-dim);
  margin-bottom: var(--space-2);
}

.input, .textarea, .select {
  width: 100%;
  padding: 14px 16px;
  background: var(--earth-2);
  border: 1px solid var(--border);
  border-radius: var(--r-sm);
  color: var(--bone);
  font-family: var(--font-body);
  font-size: var(--fs-base);
  transition: border-color var(--t-fast), background var(--t-fast);
}
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--signal);
  background: var(--earth-3);
}
.input::placeholder, .textarea::placeholder {
  color: var(--bone-ghost);
}
.textarea {
  resize: vertical;
  min-height: 100px;
  line-height: var(--lh-normal);
}

.field-error {
  color: var(--danger);
  font-size: var(--fs-sm);
  margin-top: var(--space-2);
}

/* ===== CARDS ===== */
.card {
  background: var(--earth-2);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: var(--space-6);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-3);
  border-bottom: 1px solid var(--border);
}

/* ===== BADGES ===== */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: 4px 10px;
  border-radius: var(--r-full);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  font-weight: 700;
}
.badge-signal  { background: rgba(255, 90, 31, 0.15); color: var(--signal); }
.badge-success { background: var(--success-dim); color: var(--success); }
.badge-danger  { background: var(--danger-dim);  color: var(--danger); }
.badge-moss    { background: rgba(90, 107, 58, 0.15); color: var(--moss-2); }

/* ===== MODALS ===== */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  backdrop-filter: blur(4px);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  animation: fadeIn var(--t-normal);
}

.modal {
  background: var(--earth-2);
  border: 1px solid var(--border-strong);
  border-radius: var(--r-lg);
  padding: var(--space-8);
  max-width: 500px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
  animation: slideUp var(--t-slow);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-5);
}

.modal-close {
  width: 32px;
  height: 32px;
  background: transparent;
  border: none;
  color: var(--bone-dim);
  font-size: var(--fs-xl);
  cursor: pointer;
  transition: color var(--t-fast);
}
.modal-close:hover { color: var(--bone); }

/* ===== TOAST ===== */
.toast {
  position: fixed;
  bottom: 100px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--earth-3);
  border: 1px solid var(--earth-4);
  padding: 14px 16px 14px 22px;
  border-radius: var(--r-sm);
  font-family: var(--font-mono);
  font-size: var(--fs-xs);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
  color: var(--bone);
  z-index: var(--z-toast);
  /* opacity+pointer-events hide: position:fixed → no layout impact, transitions work */
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--t-slow), transform var(--t-slow);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  max-width: 90vw;
}
.toast.toast--visible {
  opacity: 1;
  pointer-events: auto;
  transform: translateX(-50%) translateY(0);
}
.toast.toast-error   { border-color: var(--danger); }
.toast.toast-success { border-color: var(--success); }
.toast.toast-info    { border-color: var(--info); }

.toast-icon { color: var(--success); font-weight: 700; }
.toast-error   .toast-icon { color: var(--danger); }
.toast-info    .toast-icon { color: var(--info); }

.toast-close {
  background: none;
  border: none;
  color: var(--bone-ghost);
  cursor: pointer;
  padding: 0 0 0 var(--space-3);
  font-size: var(--fs-sm);
  line-height: 1;
  margin-left: auto;
  flex-shrink: 0;
  transition: color var(--t-fast);
}
.toast-close:hover { color: var(--bone); }

/* ===== PROGRESS BAR ===== */
.progress {
  width: 100%;
  height: 4px;
  background: var(--earth-3);
  border-radius: var(--r-full);
  overflow: hidden;
}
.progress-fill {
  height: 100%;
  background: var(--signal);
  transition: width var(--t-slow);
}

/* ===== DIVIDER ===== */
.divider {
  height: 1px;
  background: var(--border);
  margin: var(--space-5) 0;
}

.divider-vertical {
  width: 1px;
  background: var(--border);
  align-self: stretch;
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.5; }
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== LOADING STATE ===== */
.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--signal);
  border-radius: var(--r-full);
  animation: spin 0.8s linear infinite;
}

.skeleton {
  background: linear-gradient(
    90deg,
    var(--earth-2) 0%,
    var(--earth-3) 50%,
    var(--earth-2) 100%
  );
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--r-sm);
}
@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}