/* ============================================================
   _form.css — Forms and inputs
   All colors via variables from _base.css.
   Works with all themes: dark, light, color.
   ============================================================ */

/* ── Form tokens (override per theme) ── */
:root,
[data-theme] {
  --form-bg:          var(--color-dark-secondary);
  --form-bg-input:    color-mix(in srgb, var(--color-dark-secondary) 80%, #000 20%);
  --form-border:      color-mix(in srgb, var(--color-primary) 18%, var(--color-neutral-700));
  --form-border-hover:color-mix(in srgb, var(--color-primary) 40%, var(--color-neutral-600));
  --form-placeholder: var(--color-muted);
  --form-text:        var(--color-light);
  --form-focus-ring:  color-mix(in srgb, var(--color-primary) 20%, transparent);
  --form-radius:      var(--radius-lg);
  --form-padding:     10px 14px;
  --form-font-size:   var(--fs-base);
}

[data-theme="light"] {
  --form-bg:          var(--color-dark-secondary);
  --form-bg-input:    #ffffff;
  --form-border:      color-mix(in srgb, var(--color-primary) 18%, #cccccc);
  --form-border-hover:color-mix(in srgb, var(--color-primary) 40%, #aaaaaa);
  --form-placeholder: #999999;
  --form-text:        var(--color-light);
}

/* ══════════════════════════════════════════════════════
   FORM UTILITIES
   ══════════════════════════════════════════════════════ */

/* ── Form group ── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  width: 100%;
}

.form-label {
  font-size: var(--fs-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--color-muted);
}

.form-hint {
  font-size: 11px;
  color: var(--color-muted);
  margin-top: 2px;
}

.form-error-msg {
  font-size: 11px;
  color: var(--color-error);
  margin-top: 2px;
}

.form-success-msg {
  font-size: 11px;
  color: var(--color-success);
  margin-top: 2px;
}

.form-group.error input,
.form-group.error select,
.form-group.error textarea {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-error) 18%, transparent);
}

.form-group.success input,
.form-group.success select,
.form-group.success textarea {
  border-color: var(--color-success);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-success) 18%, transparent);
}

.form-group.active {
  color: var(--color-primary);
}

/* ── Error message ── */
.error-message {
  color: var(--color-error);
  font-size: var(--fs-xs);
  margin-top: var(--space-1);
  display: block;
}

/* ── Float label (.input + .user-label) ── */
.input-group {
  position: relative;
  width: 100%;
}

.input {
  width: 100%;
  border: 1.5px solid var(--form-border);
  border-radius: var(--form-radius);
  background: var(--form-bg-input);
  padding: 1rem 0.5rem;
  font-size: var(--fs-sm);
  font-family: inherit;
  color: var(--form-text);
  outline: none;
  transition: border-color var(--ease-fast), box-shadow var(--ease-fast);
  box-sizing: border-box;
}

.input::placeholder {
  color: var(--form-placeholder);
}

/* Float label overlays the input — placeholder stays hidden inside .input-group */
.input-group .input::placeholder {
  color: transparent;
}

.input:hover {
  border-color: var(--form-border-hover);
}

.input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--form-focus-ring);
}

.user-label {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  pointer-events: none;
  font-size: var(--fs-sm);
  font-weight: 400;
  color: var(--form-placeholder);
  background: transparent;
  transition: all 0.15s cubic-bezier(0.4, 0, 0.2, 1);
}

.input:focus ~ .user-label,
.input:not(:placeholder-shown) ~ .user-label,
.input-group input:valid ~ .user-label {
  top: 8px;
  transform: translateY(0) scale(0.78);
  transform-origin: left top;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 0.4px;
}

/* ── Shake animation ── */
.shake-popup {
  animation: shake-form 0.5s ease-in-out;
}

@keyframes shake-form {
  0%   { transform: translateX(0); }
  20%  { transform: translateX(-8px); box-shadow: 0 0 16px color-mix(in srgb, var(--color-error) 50%, transparent); border-color: var(--color-error); }
  40%  { transform: translateX(8px);  box-shadow: 0 0 16px color-mix(in srgb, var(--color-error) 60%, transparent); border-color: var(--color-error); }
  60%  { transform: translateX(-8px); box-shadow: 0 0 16px color-mix(in srgb, var(--color-error) 60%, transparent); border-color: var(--color-error); }
  80%  { transform: translateX(8px);  box-shadow: 0 0 16px color-mix(in srgb, var(--color-error) 40%, transparent); }
  100% { transform: translateX(0); }
}

/* ── Popup form input (legacy) ── */
.popup .form-input {
  border-radius: var(--radius-md);
  height: 50px;
  margin: var(--space-3) 0;
  border: 1.5px solid var(--form-border);
  background: var(--form-bg-input);
  color: var(--form-text);
  padding: var(--form-padding);
  width: 100%;
  outline: none;
  font-family: inherit;
  font-size: var(--fs-sm);
  transition: border-color var(--ease-fast), box-shadow var(--ease-fast);
}

.popup .form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--form-focus-ring);
}

.form-group.error .form-input,
.form-group.error .inpt-group .form-input {
  border-color: var(--color-error);
  box-shadow: 0 0 8px color-mix(in srgb, var(--color-error) 30%, transparent);
}

/* ── Tg-list form (lead-gen) ── */
.form.tg-list {
  width: 90%;
  margin: 0 auto;
  position: relative;
  z-index: 1;
  border-radius: var(--radius-xl);
  transition: all var(--ease-fast);
}

.form.tg-list .form-group {
  width: 100%;
  margin-bottom: var(--space-5);
}

.form.tg-list .form-group label {
  font-size: var(--fs-lg);
  color: var(--color-muted);
}

.form.tg-list .f-size-h1 {
  font-size: clamp(28px, calc(45 / 1680 * 100vw), 45px);
  font-weight: 700;
  text-align: center;
  margin: 0 auto var(--space-8);
}

.form.tg-list .text-p {
  font-size: clamp(18px, calc(40 / 1680 * 100vw), 40px);
  font-weight: 400;
  text-align: center;
  margin-bottom: var(--space-8);
  line-height: 1.4;
}

.form.tg-list input {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-lg);
  border: 2px solid var(--color-accent);
  border-radius: var(--radius-xl);
  height: 65px;
  background: color-mix(in srgb, var(--сolor-dark) 60%, transparent);
  color: var(--color-light);
  outline: none;
  transition: border-color var(--ease-fast), transform var(--ease-fast);
}

.form.tg-list input:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--color-accent) 20%, transparent);
  transform: scale(1.01);
}

.form.tg-list input::placeholder {
  color: var(--color-muted);
  font-style: italic;
}

/* ── Radio input UI ── */
.radio-input {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  align-items: center;
  justify-content: center;
}

.radio-input * {
  box-sizing: border-box;
  padding: 0;
  margin: 0;
}

.radio-input label {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  padding: 0 var(--space-5);
  width: 220px;
  cursor: pointer;
  height: 50px;
  position: relative;
  color: var(--color-light);
}

.radio-input label::before {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 100%;
  height: 45px;
  z-index: -1;
  transition: all 0.3s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
}

.radio-input label:hover::before {
  background-color: color-mix(in srgb, var(--color-primary) 10%, var(--color-dark-secondary));
}

/* Checked states per option */
.radio-input .label:nth-child(1):has(input:checked)::before {
  background-color: color-mix(in srgb, var(--color-primary) 15%, transparent);
  border-color: var(--color-primary);
  height: 50px;
}
.radio-input .label:nth-child(2):has(input:checked)::before {
  background-color: color-mix(in srgb, var(--color-success) 15%, transparent);
  border-color: var(--color-success);
  height: 50px;
}
.radio-input .label:nth-child(3):has(input:checked)::before {
  background-color: color-mix(in srgb, var(--color-warning) 15%, transparent);
  border-color: var(--color-warning);
  height: 50px;
}

.radio-input .label input[type="radio"] {
  appearance: none;
  width: 17px;
  height: 17px;
  border-radius: 50%;
  border: 2px solid var(--color-neutral-500);
  background: var(--form-bg-input);
  display: flex;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: border-color var(--ease-fast), background var(--ease-fast);
}

.radio-input .label input[type="radio"]:checked {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  animation: pulse-radio 0.7s forwards;
}

.radio-input .label:nth-child(2) input[type="radio"]:checked {
  background-color: var(--color-success);
  border-color: var(--color-success);
}

.radio-input .label:nth-child(3) input[type="radio"]:checked {
  background-color: var(--color-warning);
  border-color: var(--color-warning);
}

.radio-input .label input[type="radio"]::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: #fff;
  transform: scale(0);
  transition: transform 0.1s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.radio-input .label input[type="radio"]:checked::before {
  transform: scale(1);
}

@keyframes pulse-radio {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--color-primary) 50%, transparent); }
  70%  { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}

/* ── Pulse animation (generic) ── */
@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 color-mix(in srgb, var(--color-primary) 50%, transparent); }
  70%  { box-shadow: 0 0 0 8px transparent; }
  100% { box-shadow: 0 0 0 0 transparent; }
}