/* ============================================================
   AI:AT Event-Anfrage – Styles
   Baut auf dem AI Factory Austria Design System auf
   (Tokens aus assets/colors_and_type.css).
   ============================================================ */

:root {
  --maxw: 920px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--aiat-white);
  color: var(--fg-1);
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 600px) { .container { padding: 0 18px; } }

/* --- Skip-Link (Barrierefreiheit) --- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--aiat-blue);
  color: #fff;
  padding: 10px 16px;
  border-radius: 0 0 var(--radius-input) 0;
  z-index: 100;
  font-weight: 500;
}
.skip-link:focus { left: 0; }

/* --- Header / Logo --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-1);
}
.header-inner {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  min-height: 72px;
  padding: var(--space-3) 0;
}
.logo { display: inline-flex; align-items: center; }
.logo img { height: 42px; width: auto; display: block; }
.header-tag {
  margin-left: auto;
  font-size: var(--font-micro-size);
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--fg-3);
  border: 1px solid var(--border-1);
  padding: 5px 12px;
  border-radius: var(--radius-pill);
}
@media (max-width: 600px) {
  .logo img { height: 34px; }
  .header-tag { display: none; }
}

/* --- Intro / Hero mit Dot-Grid-Motiv --- */
.intro {
  position: relative;
  padding: var(--space-10) 0 var(--space-7);
  overflow: hidden;
}
.intro::before {
  content: "";
  position: absolute; inset: 0 0 auto 0;
  height: 100%;
  background: linear-gradient(135deg, #F2F2F4 0%, #E2E3E6 100%);
  z-index: -2;
}
.intro::after {
  content: "";
  position: absolute; inset: 0;
  background-image: radial-gradient(circle at center, #FFFFFF 22px, transparent 23px);
  background-size: 80px 80px;
  z-index: -1;
  -webkit-mask-image: linear-gradient(to bottom, black 30%, transparent 100%);
  mask-image: linear-gradient(to bottom, black 30%, transparent 100%);
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--aiat-blue);
  margin-bottom: var(--space-5);
}
.eyebrow .sparkle { width: 14px; height: 14px; }

.intro h1 {
  font-family: var(--font-display-family);
  font-weight: 500;
  letter-spacing: -0.015em;
  line-height: 1.05;
  font-size: clamp(2rem, 5.5vw, var(--font-h1-size));
  color: var(--aiat-black);
  margin: 0 0 var(--space-4);
  max-width: 18ch;
}
.intro-lead {
  font-size: 19px;
  line-height: 1.55;
  color: var(--fg-2);
  margin: 0 0 var(--space-4);
  max-width: 62ch;
}
.intro-location {
  margin: 0 0 var(--space-6);
  color: var(--fg-2);
}
.intro-location strong { color: var(--fg-1); }

/* --- Callouts / Hinweise --- */
.callout {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  border-radius: var(--radius-input);
  padding: var(--space-4) var(--space-5);
  margin: var(--space-5) 0;
  font-size: 15px;
}
.callout p { margin: 0; color: inherit; }
.callout-icon {
  flex: 0 0 20px;
  width: 20px; height: 20px;
  margin-top: 2px;
  fill: currentColor;
}
.callout-important {
  background: var(--aiat-warning-tint);
  border: 1px solid #EAC58A;
  color: #7A4A00;
}
.callout-info {
  background: var(--aiat-blue-tint);
  border: 1px solid #BBD2FB;
  color: #0A3E9E;
}
.callout-soft {
  background: var(--aiat-gray-50);
  border: 1px solid var(--border-1);
  color: var(--fg-2);
}

/* --- Formular-Struktur --- */
.event-form { padding: var(--space-6) 0 var(--space-6); }

.form-section {
  background: var(--bg-surface);
  border: 1px solid var(--border-1);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-1);
  padding: var(--space-7) var(--space-7) var(--space-8);
  margin: 0 0 var(--space-5);
}
@media (max-width: 600px) {
  .form-section { padding: var(--space-6) var(--space-5) var(--space-7); }
}
.form-section > legend {
  font-family: var(--font-display-family);
  font-weight: 500;
  letter-spacing: -0.01em;
  font-size: var(--font-h3-size);
  line-height: 1.2;
  color: var(--aiat-black);
  padding: 0;
  margin-bottom: var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-3);
}
.section-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px; height: 36px;
  border-radius: var(--radius-pill);
  background: var(--aiat-blue);
  color: #fff;
  font-family: var(--font-body-family);
  font-size: 1rem;
  font-weight: 600;
  flex: 0 0 auto;
}

.grid { display: grid; gap: var(--space-5); }
@media (min-width: 640px) {
  .grid-2 { grid-template-columns: 1fr 1fr; }
}

.field { margin-top: var(--space-5); }
.form-section > .field:first-of-type,
.form-section > .grid:first-of-type { margin-top: var(--space-4); }

label, .label-like {
  display: block;
  font-weight: 500;
  font-size: 14px;
  margin-bottom: 7px;
  color: var(--fg-1);
}
.req { color: var(--aiat-danger); font-weight: 600; }
.optional { color: var(--fg-3); font-weight: 400; font-size: 13px; }

.hint {
  font-size: 13px;
  color: var(--fg-3);
  margin: 0 0 8px;
  max-width: 78ch;
  line-height: 1.5;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="number"],
input[type="time"],
input[type="date"],
select,
textarea {
  width: 100%;
  font-family: var(--font-body-family);
  font-size: 15px;
  color: var(--fg-1);
  background: var(--aiat-white);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-input);
  padding: 12px 14px;
  transition: border-color var(--dur-fast) var(--ease-aiat),
              box-shadow var(--dur-fast) var(--ease-aiat);
}
textarea { resize: vertical; min-height: 100px; line-height: 1.55; }

input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--aiat-blue);
  box-shadow: var(--shadow-focus);
}
input::placeholder, textarea::placeholder { color: var(--aiat-gray-400); }

/* Fehlerzustand */
.field.invalid input,
.field.invalid select,
.field.invalid textarea,
.checkgroup.invalid,
.termin-row.invalid {
  border-color: var(--aiat-danger);
}
.field.invalid input:focus,
.field.invalid select:focus,
.field.invalid textarea:focus {
  box-shadow: 0 0 0 3px var(--aiat-danger-tint);
}

.error {
  color: var(--aiat-danger);
  font-size: 13px;
  margin: 7px 0 0;
}
.error:empty { display: none; }

.field-meta {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  flex-wrap: wrap;
}
.charcount {
  font-family: var(--font-mono-family);
  font-size: 12px;
  color: var(--fg-3);
  white-space: nowrap;
  margin-top: 7px;
}
.charcount.ok { color: var(--aiat-success); }

/* Checkbox-/Radio-Gruppen */
.checkgroup {
  border: 1px solid var(--border-1);
  border-radius: var(--radius-input);
  padding: var(--space-4) var(--space-5);
}
.checkgroup > legend {
  font-weight: 500;
  font-size: 14px;
  padding: 0 6px;
  margin-left: -6px;
}
.check-options { display: grid; gap: 10px; }
@media (min-width: 560px) {
  .check-options { grid-template-columns: 1fr 1fr; }
}
.check, .radio {
  display: flex;
  align-items: flex-start;
  gap: 9px;
  font-weight: 400;
  font-size: 15px;
  margin-bottom: 0;
  cursor: pointer;
  color: var(--fg-1);
}
.radio-row { display: flex; gap: 24px; flex-wrap: wrap; }
.check input, .radio input {
  width: 18px; height: 18px;
  margin-top: 1px;
  accent-color: var(--aiat-blue);
  flex: 0 0 auto;
}
.check-consent { align-items: flex-start; font-size: 15px; }
.check-consent span { color: var(--fg-2); line-height: 1.5; }

/* --- Termine --- */
.termine-liste { display: flex; flex-direction: column; gap: var(--space-4); margin-bottom: var(--space-4); }
.termin-row {
  border: 1px solid var(--border-1);
  border-radius: var(--radius-input);
  padding: var(--space-4);
  background: var(--aiat-gray-50);
}
.termin-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: var(--space-3);
}
.termin-title { font-weight: 500; font-size: 14px; }
.termin-mode { display: flex; gap: 8px; }
.chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 12px;
  border: 1px solid var(--border-2);
  border-radius: var(--radius-pill);
  background: var(--aiat-white);
  cursor: pointer;
  margin: 0;
}
.chip:has(input:checked) {
  border-color: var(--aiat-blue);
  background: var(--aiat-blue-tint);
  color: var(--aiat-blue);
}
.chip input { width: 15px; height: 15px; margin: 0; accent-color: var(--aiat-blue); }
.termin-body {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-3);
  align-items: end;
}
@media (min-width: 620px) {
  .termin-body { grid-template-columns: 1fr 1fr auto; }
  .termin-body.has-range { grid-template-columns: 1fr 1fr 1fr auto; }
}
.termin-body .field { margin-top: 0; }
.btn-remove {
  border: 1px solid var(--border-2);
  background: var(--aiat-white);
  color: var(--fg-3);
  border-radius: var(--radius-input);
  width: 44px; height: 46px;
  cursor: pointer;
  font-size: 1rem;
  transition: all var(--dur-fast) var(--ease-aiat);
}
.btn-remove:hover {
  color: var(--aiat-danger);
  border-color: var(--aiat-danger);
  background: var(--aiat-danger-tint);
}

/* --- Buttons (Design-System: Pill) --- */
.btn-primary {
  font-family: var(--font-body-family);
  background: var(--aiat-blue);
  color: #fff;
  border: 1px solid transparent;
  border-radius: var(--radius-pill);
  padding: 14px 30px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-aiat),
              transform var(--dur-fast) var(--ease-aiat);
  width: 100%;
}
@media (min-width: 560px) { .btn-primary { width: auto; min-width: 280px; } }
.btn-primary:hover:not(:disabled) { background: var(--aiat-blue-hover); }
.btn-primary:active:not(:disabled) { background: var(--aiat-blue-press); transform: translateY(1px); }
.btn-primary:disabled {
  background: var(--aiat-gray-300);
  color: var(--aiat-gray-600);
  cursor: not-allowed;
}

.btn-secondary {
  font-family: var(--font-body-family);
  background: var(--aiat-white);
  color: var(--aiat-black);
  border: 1px solid var(--aiat-black);
  border-radius: var(--radius-pill);
  padding: 11px 20px;
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: background var(--dur-fast) var(--ease-aiat), transform var(--dur-fast) var(--ease-aiat);
}
.btn-secondary:hover { background: var(--aiat-gray-50); }
.btn-secondary:active { transform: translateY(1px); }

button:focus-visible,
.chip:focus-within,
a:focus-visible {
  outline: none;
  box-shadow: var(--shadow-focus);
}

/* --- Footer des Formulars / Absenden --- */
.form-footer {
  background: var(--bg-surface);
  border: 1px solid var(--border-1);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-1);
  padding: var(--space-7);
  text-align: center;
}
.submit-hint {
  color: var(--fg-3);
  font-size: 14px;
  margin: 0 0 var(--space-4);
}
.form-status {
  margin: var(--space-4) 0 0;
  font-weight: 500;
  min-height: 1.2em;
}
.form-status.error-text { color: var(--aiat-danger); }
.form-status.success-text { color: var(--aiat-success); }

/* --- Bestätigung --- */
.confirmation { padding: var(--space-8) 0 var(--space-10); }
.confirmation-card {
  background: var(--aiat-blue-tint);
  border: 1px solid #BBD2FB;
  border-radius: var(--radius-card);
  padding: var(--space-9) var(--space-7);
  text-align: center;
  max-width: 620px;
  margin: 0 auto;
}
.confirm-icon {
  width: 64px; height: 64px;
  fill: #fff;
  background: var(--aiat-blue);
  border-radius: var(--radius-pill);
  padding: 16px;
  margin-bottom: var(--space-5);
}
.confirmation-card h2 {
  font-family: var(--font-display-family);
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--aiat-blue);
  font-size: var(--font-h3-size);
  margin: 0 0 var(--space-3);
}
.confirmation-card p { color: var(--fg-2); margin: 0 auto; max-width: 48ch; }

/* --- Footer (Brand: schwarz) --- */
.site-footer {
  background: var(--aiat-black);
  color: var(--aiat-white);
  padding: var(--space-7) 0;
  margin-top: var(--space-4);
}
.site-footer p {
  margin: 0;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

/* --- Conditional fields --- */
.conditional[hidden] { display: none; }

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}