/* ===============================
   Jugend & Wirtschaft – Check-in Arbeitswelt
   Professional, modern, accessible design
   =============================== */

/* -------- CSS Reset / Base -------- */
*, *::before, *::after {
  box-sizing: border-box;
}

:root {
  --bg: #f6f7f9;
  --surface: #ffffff;
  --surface-muted: #fff;
  --text: #1c1e21;
  --text-muted: #5f6368;
  --primary: #0b5ed7; /* professional blue */
  --primary-soft: #e7f0ff;
  --accent: #198754; /* subtle green accent */
  --border: #dcdfe4;
  --radius: 14px;
  --shadow-sm: 0 4px 12px rgba(0,0,0,0.06);
  --shadow-md: 0 12px 32px rgba(0,0,0,0.08);
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, "Helvetica Neue", Arial, sans-serif;
  color: var(--text);
  background: linear-gradient(180deg, #fffeef 0%, var(--bg) 100%);
  line-height: 1.65;
}

img {
  max-width: 100%;
  display: block;
}

h1, h2, h3 {
  line-height: 1.25;
  margin-top: 0;
}

/* -------- Page Layout -------- */
.checkin-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 80px;
  display: grid;
  gap: 72px;
}

section {
  animation: fadeUp 0.8s ease forwards;
}

/* -------- Back Button -------- */
.back-to-project {
  position: fixed;
  top: 20px;
  right: 20px;
  z-index: 1000;
}

.back-to-project a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 18px;
  background: var(--surface);
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
  border-radius: 999px;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease;
}

.back-to-project a:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  background: var(--primary-soft);
}

.back-to-project a::before {
  content: "←";
  font-size: 1.1rem;
}

@media (max-width: 640px) {
  .back-to-project {
    top: 12px;
    right: 12px;
  }
}

/* -------- Header -------- */
.checkin-header {
  background: radial-gradient(1200px 400px at 10% -20%, var(--primary-soft), transparent 60%),
              radial-gradient(800px 300px at 90% 0%, #eef6f1, transparent 55%),
              var(--surface);
  padding: 56px 48px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
}

.checkin-header h1 {
  font-size: clamp(2rem, 3.5vw, 3rem);
  margin-bottom: 12px;
}

.subtitle {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 720px;
}

.funding-inline {
  margin-top: 32px;
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 20px;
  background: var(--surface-muted);
  border-radius: 12px;
}

.funding-inline img {
  height: 48px;
  width: auto;
}

.funding-inline span {
  font-size: 0.95rem;
  color: var(--text-muted);
}

/* -------- Text Section -------- */
.checkin-text {
  background: var(--surface);
  padding: 48px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.checkin-text p {
  max-width: 820px;
  font-size: 1.05rem;
}

.checkin-text p + p {
  margin-top: 20px;
}

/* -------- Gallery -------- */
.checkin-gallery h2 {
  margin-bottom: 40px;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  align-items: stretch;
}

.checkin-gallery {
  margin-bottom: 40px;
}

.gallery-grid img {
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.gallery-grid img:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-md);
}

/* -------- Podcasts -------- */
.checkin-podcasts h2 {
  margin-bottom: 40px;
}

.checkin-podcasts {
  position: relative;
  z-index: 1;
}

.podcast-list {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.podcast-item {
  background: linear-gradient(180deg, var(--surface), #fafbfc);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 16px;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.podcast-item:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.podcast-item h3 {
  margin-bottom: 4px;
}

.podcast-item p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* -------- Custom Audio Player Styling -------- */
.podcast-item audio {
  width: 100%;
  margin-top: 8px;
  border-radius: 999px;
}

/* Chrome / Edge / Safari */
.podcast-item audio::-webkit-media-controls-panel {
  background: var(--primary-soft);
}

.podcast-item audio::-webkit-media-controls-play-button,
.podcast-item audio::-webkit-media-controls-mute-button {
  filter: saturate(1.2);
}

.podcast-item audio::-webkit-media-controls-current-time-display,
.podcast-item audio::-webkit-media-controls-time-remaining-display {
  color: var(--text);
}

/* Firefox */
@supports (-moz-appearance: none) {
  .podcast-item audio {
    accent-color: var(--primary);
  }
}

.podcast-item a {
  margin-top: auto;
  align-self: flex-start;
  text-decoration: none;
  font-weight: 600;
  color: var(--primary);
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--primary-soft);
  transition: background 0.25s ease, transform 0.25s ease;
}

.podcast-item a:hover {
  background: #d6e6ff;
  transform: translateY(-2px);
}

/* -------- Partners -------- */
.checkin-partners {
  background: var(--surface);
  padding: 48px;
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
}

.checkin-partners h2 {
  margin-bottom: 28px;
}

.checkin-partners ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px 32px;
}

.checkin-partners li {
  position: relative;
  padding-left: 28px;
  font-size: 0.95rem;
}

.checkin-partners li::before {
  content: "•";
  position: absolute;
  left: 0;
  color: var(--primary);
  font-size: 1.4rem;
  line-height: 1;
}

/* -------- Animations -------- */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* -------- Responsive -------- */
@media (max-width: 1024px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .podcast-list {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 640px) {
  .checkin-page {
    padding: 32px 16px 64px;
    gap: 56px;
  }

  .checkin-header,
  .checkin-text,
  .checkin-partners {
    padding: 32px 24px;
  }

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

  .podcast-list {
    grid-template-columns: 1fr;
  }

  .funding-inline {
    flex-direction: column;
    align-items: flex-start;
  }
}