/* Daktiv-Branding nach 00 Kontext/Branding.md
   Primär:    Daktiv Grün     #0AD705
   Sekundär:  Daktiv Teal     #024C4D
   Akzent:    Daktiv Dunkelblau #232935
   Helle Fläche: #F4F4F4

   Schrift: Brandon Grotesque (Daktiv Zier-/Web-Schrift)
*/

@font-face {
  font-family: 'Brandon Grotesque';
  src: url('assets/fonts/brandon-grotesque-light.otf') format('opentype');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Brandon Grotesque';
  src: url('assets/fonts/brandon-grotesque-light-italic.otf') format('opentype');
  font-weight: 300;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Brandon Grotesque';
  src: url('assets/fonts/brandon-grotesque-black.otf') format('opentype');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

:root {
  --daktiv-green: #0ad705;
  --daktiv-green-dark: #08b504;
  --daktiv-teal: #024c4d;
  --daktiv-teal-light: #006668;
  --daktiv-dark: #232935;
  --daktiv-light-bg: #f4f4f4;
  --daktiv-grey: #2f3135;
  --daktiv-grey-soft: #6b6f76;
  --daktiv-border: #e5e7eb;

  --gradient-hero: linear-gradient(135deg, #024c4d 0%, #006668 40%, #0ad705 110%);
  --gradient-button: linear-gradient(135deg, #024c4d 0%, #0ad705 100%);

  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 3rem;
  --space-6: 4rem;

  --radius: 16px;
  --radius-sm: 10px;

  --shadow-sm: 0 2px 8px rgba(35, 41, 53, 0.04);
  --shadow-md: 0 8px 32px rgba(35, 41, 53, 0.08);
  --shadow-lg: 0 16px 48px rgba(35, 41, 53, 0.12);
  --shadow-green: 0 8px 24px rgba(10, 215, 5, 0.35);

  /* Daktiv-konform: Brandon Grotesque für Display (Headlines), Verdana für Lesetext (wie in Mails) */
  --font-body: Verdana, Geneva, "DejaVu Sans", sans-serif;
  --font-display: 'Brandon Grotesque', Verdana, sans-serif;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  font-family: var(--font-body);
  color: var(--daktiv-dark);
  background:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(10, 215, 5, 0.08) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 90% 30%, rgba(2, 76, 77, 0.05) 0%, transparent 60%),
    var(--daktiv-light-bg);
  background-attachment: fixed;
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  max-width: 920px;
  margin: 0 auto;
  padding: 0 var(--space-3);
}

/* ----- Hero / Header ----- */
.hero {
  background: white;
  color: var(--daktiv-dark);
  padding: var(--space-6) 0 var(--space-5);
  margin-bottom: var(--space-5);
  position: relative;
  overflow: hidden;
  border-top: 6px solid var(--daktiv-green);
  box-shadow: 0 4px 24px rgba(35, 41, 53, 0.06);
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 90% 20%, rgba(10, 215, 5, 0.07) 0%, transparent 35%),
    radial-gradient(circle at 10% 80%, rgba(2, 76, 77, 0.04) 0%, transparent 35%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 1;
}

.hero .logo {
  display: block;
  height: 48px;
  width: auto;
  margin-bottom: var(--space-4);
  /* Schriftzug schwarz (Daktiv Brand-Guide: Schriftfarbe #000000),
     die Quadrate behalten ihre Markenfarben */
  color: #000000;
}

.hero h1 {
  margin: 0 0 var(--space-3);
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  letter-spacing: -1px;
  line-height: 1.05;
  color: var(--daktiv-dark);
  text-transform: uppercase;
}

.hero h1::after {
  content: "";
  display: block;
  width: 60px;
  height: 4px;
  background: var(--daktiv-green);
  margin-top: var(--space-3);
  border-radius: 2px;
}

.hero .lead {
  margin: 0;
  max-width: 680px;
  font-size: 1.05rem;
  font-weight: 300;
  color: var(--daktiv-grey-soft);
  line-height: 1.6;
}

/* ----- Cards / Sections ----- */
.card {
  background: white;
  border-radius: var(--radius);
  padding: var(--space-4);
  margin-bottom: var(--space-3);
  box-shadow: var(--shadow-sm);
  position: relative;
  transition: box-shadow 0.25s ease, transform 0.25s ease;
}

.card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* Step-Badge */
.card[data-step]::before {
  content: attr(data-step);
  position: absolute;
  top: -14px;
  left: var(--space-3);
  min-width: 46px;
  height: 46px;
  padding: 0 0.7rem;
  background: var(--daktiv-green);
  color: white;
  border-radius: 100px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: 0.5px;
  box-shadow: var(--shadow-green);
}

.card[data-step] {
  padding-top: calc(var(--space-4) + var(--space-1));
}

.card h2 {
  margin: 0 0 var(--space-2);
  color: var(--daktiv-teal);
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 900;
  letter-spacing: -0.3px;
  text-transform: uppercase;
}

.card h3 {
  margin: var(--space-3) 0 var(--space-1);
  color: var(--daktiv-dark);
  font-size: 0.95rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.hint {
  margin: 0 0 var(--space-3);
  color: var(--daktiv-grey-soft);
  font-size: 0.95rem;
  line-height: 1.6;
}

.hint code {
  background: var(--daktiv-light-bg);
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 0.9em;
  color: var(--daktiv-teal);
  font-family: 'SF Mono', Monaco, monospace;
}

.hint strong {
  color: var(--daktiv-dark);
}

/* ----- Forms ----- */
label {
  display: block;
  margin-bottom: var(--space-2);
  font-size: 0.95rem;
}

label > span {
  display: block;
  margin-bottom: 0.4rem;
  font-weight: 600;
  color: var(--daktiv-dark);
  font-size: 0.9rem;
}

.req {
  color: var(--daktiv-green);
  margin-left: 2px;
  font-weight: 700;
}

input[type="text"],
input[type="email"],
input[type="tel"],
input[type="url"],
input[type="number"],
textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--daktiv-border);
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 1rem;
  color: var(--daktiv-dark);
  background: white;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

input:focus,
textarea:focus {
  outline: none;
  border-color: var(--daktiv-green);
  box-shadow: 0 0 0 4px rgba(10, 215, 5, 0.12);
}

input::placeholder {
  color: #a8acb3;
}

input:invalid:not(:placeholder-shown):not(:focus) {
  border-color: #d04545;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: var(--space-2);
}

/* ----- File upload ----- */
label.file {
  display: block;
}

input[type="file"] {
  display: block;
  width: 100%;
  padding: 1rem;
  border: 2px dashed var(--daktiv-border);
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, var(--daktiv-light-bg) 0%, white 100%);
  cursor: pointer;
  font-size: 0.95rem;
  font-family: inherit;
  color: var(--daktiv-grey);
  transition: border-color 0.2s ease, background 0.2s ease;
}

input[type="file"]:hover {
  border-color: var(--daktiv-green);
  background: linear-gradient(180deg, #eafce9 0%, white 100%);
}

input[type="file"]:focus {
  outline: none;
  border-color: var(--daktiv-green);
  box-shadow: 0 0 0 4px rgba(10, 215, 5, 0.12);
}

.file-info {
  margin-top: 0.5rem;
  padding: 0.6rem 0.9rem;
  background: rgba(10, 215, 5, 0.08);
  border-left: 3px solid var(--daktiv-green);
  border-radius: 6px;
  font-size: 0.88rem;
  color: var(--daktiv-teal);
  font-weight: 500;
}

/* ----- Rules-Liste ----- */
.rules {
  margin: 0 0 var(--space-3);
  padding: var(--space-2) var(--space-3) var(--space-2) calc(var(--space-3) + 0.5rem);
  background: var(--daktiv-light-bg);
  border-radius: var(--radius-sm);
  color: var(--daktiv-grey);
  font-size: 0.92rem;
  line-height: 1.7;
  list-style-position: outside;
}

.rules li {
  margin-bottom: 0.3rem;
}

.rules li:last-child {
  margin-bottom: 0;
}

.rules strong {
  color: var(--daktiv-dark);
}

/* ----- Fragen-Block ----- */
.frage-block {
  border-left: 4px solid var(--daktiv-green);
  padding: var(--space-3);
  margin-bottom: var(--space-3);
  background: linear-gradient(135deg, #fafafa 0%, white 100%);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease;
}

.frage-block:hover {
  box-shadow: var(--shadow-md);
}

.frage-block-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-2);
  padding-bottom: var(--space-2);
  border-bottom: 1px solid var(--daktiv-border);
}

.frage-block-header strong {
  font-size: 1.05rem;
  color: var(--daktiv-teal);
  font-weight: 700;
  letter-spacing: -0.2px;
}

.frage-block-header button {
  background: transparent;
  border: 1.5px solid #d04545;
  color: #d04545;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.8rem;
  border-radius: 6px;
  cursor: pointer;
  transition: all 0.15s ease;
}

.frage-block-header button:hover {
  background: #d04545;
  color: white;
}

.frage-sprache {
  margin-bottom: var(--space-3);
}

.frage-sprache:last-child {
  margin-bottom: 0;
}

.frage-sprache > strong {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--daktiv-teal);
  font-weight: 700;
  margin-bottom: var(--space-1);
}

.frage-sprache .korrekt {
  position: relative;
}

.frage-sprache .korrekt::before {
  content: "Antwort A (korrekt)";
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--daktiv-green-dark);
  margin-bottom: 4px;
}

.frage-sprache .opt-b::before {
  content: "Antwort B";
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--daktiv-grey-soft);
  margin-bottom: 4px;
}

.frage-sprache .opt-c::before {
  content: "Antwort C";
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--daktiv-grey-soft);
  margin-bottom: 4px;
}

/* ----- Buttons ----- */
button {
  cursor: pointer;
  font-family: inherit;
  font-size: 1rem;
}

button[type="submit"] {
  background: var(--gradient-button);
  color: white;
  border: none;
  padding: 1.1rem 3rem;
  border-radius: 100px;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 1.05rem;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  box-shadow: var(--shadow-green);
  transition: transform 0.15s ease, box-shadow 0.2s ease;
  position: relative;
  overflow: hidden;
}

button[type="submit"]:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(10, 215, 5, 0.45);
}

button[type="submit"]:active:not(:disabled) {
  transform: translateY(0);
}

button[type="submit"]:disabled {
  background: var(--daktiv-grey-soft);
  opacity: 0.7;
  cursor: not-allowed;
  box-shadow: none;
}

button.secondary {
  background: white;
  color: var(--daktiv-teal);
  border: 2px solid var(--daktiv-teal);
  padding: 0.7rem 1.5rem;
  border-radius: 100px;
  font-weight: 600;
  font-size: 0.95rem;
  transition: all 0.15s ease;
}

button.secondary:hover {
  background: var(--daktiv-teal);
  color: white;
  transform: translateY(-1px);
}

/* ----- Submit-Row ----- */
.submit-row {
  text-align: center;
  padding: var(--space-5) 0 var(--space-6);
}

.status {
  margin: var(--space-3) auto 0;
  font-size: 0.95rem;
  min-height: 1.5em;
  max-width: 520px;
  line-height: 1.5;
}

.status.success {
  color: var(--daktiv-teal);
  font-weight: 600;
  background: rgba(10, 215, 5, 0.1);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  border-left: 4px solid var(--daktiv-green);
  text-align: left;
}

.status.error {
  color: #b53030;
  font-weight: 600;
  background: rgba(208, 69, 69, 0.08);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-sm);
  border-left: 4px solid #d04545;
  text-align: left;
}

/* ----- Honeypot ----- */
.honeypot {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

/* ----- Footer ----- */
.footer {
  background: var(--daktiv-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: var(--space-4) 0;
  text-align: center;
  font-size: 0.85rem;
}

.footer .container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.footer-icon {
  height: 32px;
  width: auto;
  /* Quadrat-Icon zeigt die echten Markenfarben */
  filter: drop-shadow(0 0 12px rgba(10, 215, 5, 0.35));
}

.footer p {
  margin: 0;
}

.footer a {
  color: var(--daktiv-green);
  text-decoration: none;
  font-weight: 600;
}

.footer a:hover {
  text-decoration: underline;
}

/* ----- Responsive ----- */
@media (max-width: 600px) {
  .hero {
    padding: var(--space-5) 0 var(--space-4);
  }
  .hero h1 {
    font-size: 1.9rem;
  }
  .hero .lead {
    font-size: 1rem;
  }
  .card {
    padding: var(--space-3) var(--space-3);
  }
  .card[data-step] {
    padding-top: calc(var(--space-3) + var(--space-2));
  }
  .card[data-step]::before {
    left: var(--space-2);
  }
  .grid {
    grid-template-columns: 1fr;
  }
  button[type="submit"] {
    padding: 1rem 2.2rem;
    font-size: 1rem;
  }
}