/* ==========================================================================
   Webinar Landingpage — transformwerk.digital
   Farben: Teal #0D9488 (Standard), #0F766E (Hover)
   ========================================================================== */

/* --- CSS Custom Properties (hier Farben anpassen) --- */
:root {
  --color-primary: #0D9488;
  --color-primary-dark: #0F766E;
  --color-primary-light: #14B8A6;
  --color-primary-subtle: #F0FDFA;

  --color-text: #1E293B;
  --color-text-light: #64748B;
  --color-text-inverse: #FFFFFF;

  --color-bg: #FFFFFF;
  --color-bg-light: #F8FAFB;
  --color-bg-dark: #0F172A;

  --color-border: #E2E8F0;
  --color-error: #DC2626;
  --color-success: #16A34A;

  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --container-max: 960px;
  --radius: 8px;
  --radius-lg: 12px;
}

/* --- Reset --- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

img {
  max-width: 100%;
  height: auto;
}

a {
  color: var(--color-primary);
  text-decoration: underline;
}

a:hover {
  color: var(--color-primary-dark);
  cursor: pointer;
}

/* --- Container --- */
.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

/* --- Header --- */
.header {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  padding: 16px 0;
}

.header__brand {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.header__brand:hover {
  color: var(--color-primary-dark);
}

/* --- Hero --- */
.hero {
  background: linear-gradient(135deg, var(--color-primary-subtle) 0%, var(--color-bg) 100%);
  padding: 64px 0 80px;
  text-align: center;
}

.hero__eyebrow {
  display: inline-block;
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 24px;
}

.hero__headline {
  font-size: clamp(1.375rem, 4.5vw, 2.75rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
  margin-bottom: 16px;
}

.hero__subheadline {
  font-size: 1.125rem;
  color: var(--color-text-light);
  max-width: 600px;
  margin: 0 auto 32px;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
}

/* --- Badges --- */
.badge {
  display: inline-block;
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 0.875rem;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 100px;
}

.badge--highlight {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: var(--color-text-inverse);
  font-weight: 700;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-family);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background-color 0.2s, transform 0.1s;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn--primary {
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  padding: 14px 32px;
}

.btn--primary:hover {
  background-color: var(--color-primary-dark);
  color: var(--color-text-inverse);
}

.btn--large {
  font-size: 1.125rem;
  padding: 16px 40px;
}

.btn--full {
  width: 100%;
}

.btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

.btn__spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

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

/* --- Sections --- */
.section {
  padding: 64px 0;
}

.section--light {
  background-color: var(--color-bg-light);
}

.section--dark {
  background-color: var(--color-bg-dark);
}

.section--accent {
  background-color: var(--color-primary);
}

.section__title {
  font-size: 1.75rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 40px;
  color: var(--color-text);
}

.section__title--light {
  color: var(--color-text-inverse);
}

.section__subtitle {
  text-align: center;
  color: var(--color-text-light);
  font-size: 1.0625rem;
  margin-top: -24px;
  margin-bottom: 40px;
}

/* --- Problem & Loesung (kombiniert) --- */
.problem-solution-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
  max-width: 800px;
  margin: 0 auto;
}

.problem-solution {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  background-color: var(--color-bg);
  padding: 20px 24px;
  border-radius: var(--radius);
}

.problem-solution__problem,
.problem-solution__solution {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.problem-solution__icon {
  font-size: 1.125rem;
  font-weight: 700;
  flex-shrink: 0;
  line-height: 1.6;
}

.problem-solution__icon--problem {
  color: var(--color-error);
}

.problem-solution__icon--solution {
  color: var(--color-primary);
}

.problem-solution__problem p {
  color: var(--color-text-light);
}

.problem-solution__solution p {
  color: var(--color-text);
  font-weight: 500;
}

.problem-solution__arrow {
  font-size: 1.25rem;
  color: var(--color-primary);
  font-weight: 700;
}

/* --- Agenda --- */
.agenda {
  max-width: 640px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.agenda__item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  background-color: var(--color-bg);
  padding: 20px 24px;
  border-radius: var(--radius);
}

.agenda__number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  min-width: 40px;
  background-color: var(--color-primary);
  color: var(--color-text-inverse);
  font-size: 1rem;
  font-weight: 700;
  border-radius: 50%;
}

.agenda__item h3 {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 4px;
  color: var(--color-text);
}

.agenda__item p {
  font-size: 0.9375rem;
  color: var(--color-text-light);
}

/* --- Speaker / Ueber mich --- */
.speaker {
  max-width: 640px;
  margin: 0 auto;
  text-align: center;
}

.speaker__info {
  color: var(--color-text-inverse);
}

.speaker__name {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.speaker__role {
  font-size: 1rem;
  opacity: 0.85;
  margin-bottom: 16px;
}

.speaker__bio {
  font-size: 1.0625rem;
  line-height: 1.7;
  opacity: 0.95;
}

/* --- Formular --- */
.form {
  max-width: 560px;
  margin: 0 auto;
  background-color: var(--color-bg);
  padding: 40px;
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form__group {
  margin-bottom: 20px;
}

.form__label {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form__input {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-family);
  font-size: 1rem;
  color: var(--color-text);
  background-color: var(--color-bg-light);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.2s;
}

.form__input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(13, 148, 136, 0.15);
}

.form__input.error {
  border-color: var(--color-error);
}

.form__fieldset {
  border: none;
  margin-bottom: 20px;
}

.form__legend {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}

/* --- Terminauswahl-Karten --- */
.form__timeslots {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.timeslot {
  cursor: pointer;
}

.timeslot input[type="radio"] {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.timeslot__card {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 16px;
  background-color: var(--color-bg-light);
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color 0.2s, background-color 0.2s;
  text-align: center;
}

.timeslot__card:hover {
  border-color: var(--color-primary-dark);
  cursor: pointer;
}

.timeslot__card:hover .timeslot__date,
.timeslot__card:hover .timeslot__time {
  color: var(--color-primary-dark);
}

.timeslot input[type="radio"]:checked + .timeslot__card {
  border-color: var(--color-primary);
  background-color: var(--color-primary-subtle);
}

.timeslot input[type="radio"]:focus-visible + .timeslot__card {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.timeslot__date {
  font-size: 0.8125rem;
  color: var(--color-text-light);
  font-weight: 500;
}

.timeslot__time {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 4px;
}

.timeslot.error .timeslot__card {
  border-color: var(--color-error);
}

/* --- Checkbox --- */
.form__group--checkbox {
  margin-bottom: 24px;
}

.form__checkbox-label {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  cursor: pointer;
  font-size: 0.875rem;
  color: var(--color-text-light);
  line-height: 1.5;
}

.form__checkbox-label input[type="checkbox"] {
  margin-top: 3px;
  flex-shrink: 0;
  accent-color: var(--color-primary);
}

.form__checkbox-label a {
  color: var(--color-primary);
}

/* --- Fehlermeldung --- */
.form__error {
  background-color: #FEF2F2;
  border: 1px solid #FECACA;
  color: var(--color-error);
  font-size: 0.875rem;
  padding: 12px 16px;
  border-radius: var(--radius);
  margin-bottom: 20px;
}

.form__hint {
  text-align: center;
  font-size: 0.8125rem;
  color: var(--color-text-light);
  margin-top: 16px;
}

/* --- Footer --- */
.footer {
  background-color: var(--color-bg-dark);
  color: var(--color-text-inverse);
  padding: 40px 0;
  text-align: center;
}

.footer__brand {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.footer__company {
  font-size: 0.875rem;
  opacity: 0.7;
  margin-bottom: 16px;
}

.footer__nav {
  display: flex;
  justify-content: center;
  gap: 24px;
}

.footer__nav a {
  color: var(--color-text-inverse);
  opacity: 0.7;
  font-size: 0.875rem;
  text-decoration: none;
}

.footer__nav a:hover {
  opacity: 1;
  color: var(--color-text-inverse);
}

/* --- Cookie-Consent-Banner --- */
.cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: var(--color-bg-dark);
  box-shadow: 0 -4px 24px rgba(0, 0, 0, 0.15);
}

.cookie-banner__content {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cookie-banner__text {
  font-size: 0.875rem;
  color: var(--color-text-inverse);
  line-height: 1.5;
  flex: 1;
}

.cookie-banner__text a {
  color: var(--color-primary-light);
}

.cookie-banner__actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

.cookie-banner__btn {
  font-size: 0.875rem;
  padding: 10px 20px;
  white-space: nowrap;
}

.cookie-banner__btn--secondary {
  background-color: transparent;
  border: 1px solid rgba(255, 255, 255, 0.3);
  color: var(--color-text-inverse);
}

.cookie-banner__btn--secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-text-inverse);
}

@media (max-width: 600px) {
  .cookie-banner__content {
    flex-direction: column;
    text-align: center;
    padding: 16px 20px;
    gap: 16px;
  }

  .cookie-banner__actions {
    width: 100%;
    flex-direction: column;
  }

  .cookie-banner__btn {
    width: 100%;
  }
}

/* --- Responsive --- */
@media (min-width: 768px) {
  .hero {
    padding: 80px 0 100px;
  }

  .section {
    padding: 80px 0;
  }

  .section__title {
    font-size: 2rem;
  }

  .problem-solution-grid {
    gap: 20px;
  }
}

@media (max-width: 600px) {
  .hero__subheadline {
    font-size: 1rem;
  }

  .hero__badges {
    gap: 6px;
  }

  .badge {
    font-size: 0.8125rem;
    padding: 6px 12px;
  }

  .form {
    padding: 24px 20px;
  }

  .form__row {
    grid-template-columns: 1fr;
  }

  .form__timeslots {
    grid-template-columns: 1fr;
  }

  .section {
    padding: 48px 0;
  }

  .section__title {
    font-size: 1.5rem;
    margin-bottom: 28px;
  }

  .section__subtitle {
    margin-top: -16px;
    margin-bottom: 28px;
  }

  .agenda__item {
    padding: 16px;
  }

  .problem-solution {
    grid-template-columns: 1fr;
    gap: 8px;
    padding: 16px;
  }

  .problem-solution__arrow {
    transform: rotate(90deg);
    justify-self: center;
  }
}