/* =================================================================
   KLANG TV AIRPLAY CHARTS – Bemusterungsformular
   Seitenspezifisches Layout für public/bemusterung.html.
   Baut auf assets/css/design-system.css auf (Farben, Typografie,
   Buttons, Karten) – hier nur Formular-spezifische Komponenten.
   ================================================================= */

/* ================================================================
   Seitenkopf
   ================================================================ */
.page-hero {
  padding-block: clamp(2rem, 4vw, 3rem) 1.5rem;
}

.page-hero .eyebrow {
  color: var(--ktv-purple-light);
  font-size: var(--ktv-fs-small);
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.page-hero h1 {
  margin-top: 0.5rem;
  font-size: clamp(2rem, 3.4vw, 3rem);
  color: var(--ktv-white);
  text-transform: uppercase;
  line-height: 1.05;
}

.page-hero p {
  margin-top: 0.75rem;
  color: var(--ktv-text-soft);
  max-width: 62ch;
  font-size: 1.05rem;
}

/* ================================================================
   Formular-Layout
   ================================================================ */
.bemusterung-form {
  display: flex;
  flex-direction: column;
  gap: 18px;
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
}

.form-section {
  scroll-margin-top: 90px;
}

.form-section__header {
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--ktv-border);
}

.form-section__index {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1.9rem;
  height: 1.9rem;
  border-radius: 50%;
  background: var(--ktv-gradient);
  color: var(--ktv-white);
  font-family: var(--ktv-font-display);
  font-size: 0.9rem;
  margin-right: 0.75rem;
  flex-shrink: 0;
}

.form-section__title {
  display: flex;
  align-items: center;
  font-size: 1.3rem;
  color: var(--ktv-white);
  text-transform: uppercase;
}

.form-section__desc {
  margin: 0.5rem 0 0 2.65rem;
  color: var(--ktv-text-mute);
  font-size: var(--ktv-fs-small);
  max-width: 70ch;
}

/* ---- Feldraster ------------------------------------------------- */
.field-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem 1.5rem;
}

.field--full { grid-column: 1 / -1; }

@media (max-width: 640px) {
  .field-grid { grid-template-columns: 1fr; }
}

/* ---- Einzelfeld --------------------------------------------------- */
.field {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.field label {
  font-size: var(--ktv-fs-small);
  font-weight: 700;
  color: var(--ktv-text);
  letter-spacing: 0.01em;
}

.field label .required { color: var(--ktv-magenta); margin-left: 0.2em; }
.field label .optional {
  font-weight: 400;
  color: var(--ktv-text-mute);
  text-transform: none;
  letter-spacing: normal;
}

.field-hint {
  font-size: var(--ktv-fs-tiny);
  color: var(--ktv-text-mute);
  line-height: 1.5;
}

.field-error {
  display: none;
  font-size: var(--ktv-fs-tiny);
  color: var(--ktv-down);
  font-weight: 700;
}

.field.has-error .field-error { display: block; }
.field.has-error input,
.field.has-error select,
.field.has-error textarea {
  border-color: var(--ktv-down);
}

/* ---- Eingabefelder: große, moderne Felder statt weißer Standardfläche */
.field input[type="text"],
.field input[type="email"],
.field input[type="tel"],
.field input[type="url"],
.field input[type="date"],
.field input[type="password"],
.field select,
.field textarea {
  width: 100%;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--ktv-border-strong);
  border-radius: var(--ktv-radius-md);
  color: var(--ktv-white);
  font-family: var(--ktv-font-base);
  font-size: 0.98rem;
  padding: 0.85em 1em;
  transition: border-color 0.15s ease, background 0.15s ease, box-shadow 0.15s ease;
}

.field textarea { resize: vertical; min-height: 6.5rem; line-height: 1.5; }

.field input::placeholder,
.field textarea::placeholder { color: var(--ktv-text-mute); }

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--ktv-purple);
  background: rgba(155, 48, 255, 0.07);
  box-shadow: 0 0 0 3px rgba(155, 48, 255, 0.22);
}

.field select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23a49fb2' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'><path d='M6 9l6 6 6-6'/></svg>");
  background-repeat: no-repeat;
  background-position: right 1em center;
  background-size: 18px;
  padding-right: 2.5em;
}
.field select option { background: var(--ktv-surface-alt); color: var(--ktv-white); }

/* ================================================================
   Checkboxen / Radios (Verwendung, Rechtebestätigung)
   ================================================================ */
.check-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.check-option {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--ktv-border);
  border-radius: var(--ktv-radius-md);
  background: rgba(255, 255, 255, 0.02);
  cursor: pointer;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.check-option:hover { border-color: var(--ktv-border-strong); }
.check-option:has(input:checked) {
  border-color: var(--ktv-purple);
  background: rgba(155, 48, 255, 0.08);
}

.check-option input[type="checkbox"],
.check-option input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  flex-shrink: 0;
  width: 1.25rem;
  height: 1.25rem;
  margin-top: 0.1rem;
  border: 1.5px solid var(--ktv-border-strong);
  background: rgba(255, 255, 255, 0.04);
  cursor: pointer;
  position: relative;
  transition: border-color 0.15s ease, background 0.15s ease;
}
.check-option input[type="checkbox"] { border-radius: 5px; }
.check-option input[type="radio"] { border-radius: 50%; }

.check-option input:checked {
  border-color: transparent;
  background: var(--ktv-gradient);
}
.check-option input[type="checkbox"]:checked::after {
  content: "";
  position: absolute;
  left: 0.35rem;
  top: 0.14rem;
  width: 0.32rem;
  height: 0.62rem;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}
.check-option input[type="radio"]:checked::after {
  content: "";
  position: absolute;
  inset: 0.3rem;
  border-radius: 50%;
  background: #fff;
}

.check-option span.label {
  font-size: var(--ktv-fs-small);
  color: var(--ktv-text);
  line-height: 1.45;
}
.check-option span.label strong { color: var(--ktv-white); }

.check-option.required-consent { border-color: rgba(255, 77, 94, 0.25); }
.check-option.required-consent:has(input:checked) {
  border-color: var(--ktv-up);
  background: rgba(52, 209, 122, 0.08);
}

/* ================================================================
   Datei-Upload-Felder
   ================================================================ */
.upload-field {
  border: 1.5px dashed var(--ktv-border-strong);
  border-radius: var(--ktv-radius-md);
  padding: 1.25rem;
  background: rgba(255, 255, 255, 0.02);
  transition: border-color 0.15s ease, background 0.15s ease;
  position: relative;
}
.upload-field:has(input:focus-visible) {
  border-color: var(--ktv-purple);
  box-shadow: 0 0 0 3px rgba(155, 48, 255, 0.22);
}
.upload-field.is-filled { border-style: solid; border-color: var(--ktv-purple); }
.upload-field.has-error { border-color: var(--ktv-down); }

.upload-field input[type="file"] {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  cursor: pointer;
}

.upload-field__body {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  pointer-events: none;
}

.upload-field__icon {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--ktv-gradient);
  color: var(--ktv-white);
}
.upload-field__icon svg { width: 45%; height: 45%; }

.upload-field__label { font-weight: 700; color: var(--ktv-white); font-size: 0.95rem; }
.upload-field__meta { font-size: var(--ktv-fs-tiny); color: var(--ktv-text-mute); margin-top: 0.2rem; }
.upload-field__filename { font-size: var(--ktv-fs-tiny); color: var(--ktv-up); margin-top: 0.2rem; word-break: break-all; }

.upload-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.1rem 1.5rem;
}
@media (max-width: 640px) { .upload-grid { grid-template-columns: 1fr; } }

/* ================================================================
   Honeypot (unsichtbares Spam-Schutzfeld)
   ================================================================ */
.honeypot-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ================================================================
   Hinweisboxen
   ================================================================ */
.notice-box {
  display: flex;
  gap: 0.75rem;
  padding: 1rem 1.1rem;
  border-radius: var(--ktv-radius-md);
  background: rgba(155, 48, 255, 0.08);
  border: 1px solid rgba(155, 48, 255, 0.25);
  font-size: var(--ktv-fs-small);
  color: var(--ktv-text-soft);
  line-height: 1.5;
}
.notice-box svg { flex-shrink: 0; width: 1.2rem; height: 1.2rem; color: var(--ktv-purple-light); margin-top: 0.1rem; }

.notice-box--muted {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--ktv-border);
}

/* ================================================================
   Absenden
   ================================================================ */
.form-actions {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
  text-align: center;
  padding-block: 0.5rem;
}

.form-actions .btn-submit {
  width: 100%;
  max-width: 420px;
  padding-block: 1.05em;
  font-size: 1rem;
}

.form-actions .field-error { text-align: center; }

.form-status {
  font-size: var(--ktv-fs-small);
  color: var(--ktv-text-mute);
}

/* ================================================================
   Bestätigungskarte
   ================================================================ */
.confirmation-card {
  text-align: center;
  padding-block: clamp(2.5rem, 5vw, 3.5rem);
}

.confirmation-icon {
  width: 4.5rem;
  height: 4.5rem;
  margin: 0 auto 1.25rem;
  border-radius: 50%;
  background: var(--ktv-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(155, 48, 255, 0.4);
}
.confirmation-icon svg { width: 45%; height: 45%; color: #fff; }

.confirmation-card h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  color: var(--ktv-white);
  text-transform: uppercase;
}

.confirmation-card p {
  margin-top: 0.9rem;
  color: var(--ktv-text-soft);
  max-width: 56ch;
  margin-inline: auto;
}

.confirmation-ref {
  display: inline-block;
  margin-top: 1.5rem;
  padding: 0.9em 1.75em;
  border-radius: var(--ktv-radius-pill);
  background: rgba(155, 48, 255, 0.12);
  border: 1px solid rgba(155, 48, 255, 0.35);
  font-family: var(--ktv-font-display);
  font-size: 1.3rem;
  letter-spacing: 0.04em;
  color: var(--ktv-purple-light);
}

.confirmation-note {
  margin-top: 1.75rem;
  font-size: var(--ktv-fs-tiny);
  color: var(--ktv-text-mute);
}

.confirmation-preview-flag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 1.25rem;
  padding: 0.5em 1em;
  border-radius: var(--ktv-radius-pill);
  background: rgba(255, 209, 102, 0.1);
  border: 1px solid rgba(255, 209, 102, 0.35);
  color: #ffd166;
  font-size: var(--ktv-fs-tiny);
  font-weight: 700;
}

.confirmation-card .btn { margin-top: 2rem; }

[hidden] { display: none !important; }