/* ============================================================
   DEEPRISE — COMPONENT STYLES
   Plain-CSS equivalents of the Claude Design System's React
   components (Button, Tag, MediaCard, Input, Textarea, Checkbox).
   Behaviour (hover/focus) is expressed as real CSS, not JS state.
   ============================================================ */

/* --- Button --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: var(--weight-bold);
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 2px solid transparent;
  transition: background-color var(--duration-fast) var(--ease-standard),
              border-color var(--duration-fast) var(--ease-standard),
              color var(--duration-fast) var(--ease-standard),
              transform var(--duration-fast) var(--ease-standard);
  box-sizing: border-box;
  min-height: 44px;
  text-decoration: none;
}
.btn:disabled { cursor: not-allowed; opacity: 0.5; }
.btn--md { padding: 12px 22px; font-size: var(--text-sm); }
.btn--lg { padding: 16px 30px; font-size: var(--text-base); }
.btn--full { width: 100%; }

.btn--primary { background: var(--action-primary); color: var(--action-primary-text); border-color: var(--action-primary); }
.btn--primary:hover:not(:disabled) { background: var(--action-primary-hover); transform: translateY(-1px); }

.btn--secondary { background: var(--action-secondary); color: var(--action-secondary-text); border-color: var(--action-secondary-border); }
.btn--secondary:hover:not(:disabled) { background: var(--action-secondary-hover-bg); transform: translateY(-1px); }

.btn--tertiary { background: none; color: var(--action-tertiary-text); border-color: transparent; padding: 0; min-height: auto; text-decoration: underline; text-underline-offset: 3px; }
.btn--tertiary:hover:not(:disabled) { color: var(--action-tertiary-hover); }

.btn:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

.btn__icon { display: inline-flex; }

/* --- Tag --- */
.tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-sans);
  font-weight: var(--weight-bold);
  font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider);
  text-transform: uppercase;
}
.tag--teal { color: var(--teal-700); border: 1px solid var(--teal-300); }
.tag--mint { color: var(--mint-700); border: 1px solid var(--mint-300); }
.tag--gold { color: var(--gold-700); border: 1px solid var(--gold-300); }
.tag--wine { color: var(--wine-600); border: 1px solid var(--wine-200); }

/* --- MediaCard (offering tiles) --- */
.media-card {
  position: relative;
  display: block;
  border-radius: var(--radius-lg);
  overflow: hidden;
  text-decoration: none;
  height: 340px;
  isolation: isolate;
  box-shadow: var(--shadow-sm);
  transform: none;
  transition: box-shadow var(--duration-base) var(--ease-out), transform var(--duration-base) var(--ease-out);
}
.media-card:hover, .media-card:focus-within { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.media-card__bg {
  position: absolute; inset: 0;
  background: linear-gradient(150deg, var(--teal-600), var(--teal-800));
  transform: scale(1);
  transition: transform var(--duration-slow) var(--ease-out);
}
.media-card:hover .media-card__bg, .media-card:focus-within .media-card__bg { transform: scale(1.06); }
.media-card__scrim {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(2,46,49,0.92) 0%, rgba(2,46,49,0.55) 45%, rgba(2,46,49,0.05) 75%);
}
.media-card__tag {
  position: absolute; top: 16px; left: 16px;
  font-family: var(--font-sans); font-weight: var(--weight-bold); font-size: var(--text-xs);
  letter-spacing: var(--tracking-wider); text-transform: uppercase; color: var(--off-white);
  background: rgba(251,250,249,0.16); border: 1px solid rgba(251,250,249,0.4);
  padding: 5px 10px; border-radius: var(--radius-sm); backdrop-filter: blur(4px);
}
.media-card__body { position: absolute; left: 20px; right: 20px; bottom: 20px; color: var(--off-white); }
.media-card__icon {
  display: inline-flex; align-items: center; justify-content: center;
  width: 48px; height: 48px; border-radius: var(--radius-full);
  background: var(--gold-500); color: var(--ink-900);
  box-shadow: 0 6px 16px rgba(3,24,26,0.35); margin-bottom: 14px;
}
.media-card__title-wrap {
  min-height: calc(var(--text-lg) * 1.2 * 2);
  display: flex; flex-direction: column; justify-content: flex-start;
  margin-bottom: 0;
  transition: margin var(--duration-base) var(--ease-standard);
}
.media-card:hover .media-card__title-wrap, .media-card:focus-within .media-card__title-wrap { min-height: 0; margin-bottom: 8px; }
.media-card__title { font-family: var(--font-serif-display); font-size: var(--text-lg); line-height: 1.2; }
.media-card__desc {
  font-family: var(--font-sans); font-size: var(--text-sm); line-height: var(--leading-normal);
  color: var(--text-on-dark-muted); max-height: 0; opacity: 0; overflow: hidden;
  transition: max-height var(--duration-base) var(--ease-out), opacity var(--duration-fast) var(--ease-out);
}
.media-card:hover .media-card__desc, .media-card:focus-within .media-card__desc { max-height: 120px; opacity: 1; }

/* Touch devices without real mouse hover: description text always visible, no hover-trigger needed */
@media (hover: none) {
  .media-card__title-wrap { min-height: 0; margin-bottom: 8px; }
  .media-card__desc { max-height: 120px; opacity: 1; }
}

/* --- Form fields (Input / Textarea) --- */
.field { font-family: var(--font-sans); width: 100%; }
.field__label { display: block; margin-bottom: 6px; font-size: var(--text-sm); font-weight: var(--weight-semibold); color: var(--text-heading); }
.field__required { color: var(--status-error); }
.field__control {
  width: 100%; box-sizing: border-box; min-height: 44px; padding: 10px 14px;
  font-size: var(--text-base); font-family: var(--font-sans); color: var(--text-body);
  background: var(--off-white); border: 1px solid var(--border-input); border-radius: var(--radius-md);
  outline: none;
}
textarea.field__control { padding: 12px 14px; resize: vertical; min-height: 128px; }
.field__control:focus { border-color: var(--border-input-focus); outline: 2px solid var(--focus-ring); outline-offset: 1px; }
.field__control:disabled { background: var(--teal-50); }

/* --- Checkbox --- */
.checkbox { display: inline-flex; align-items: flex-start; flex-wrap: wrap; gap: 10px; min-height: 44px; cursor: pointer; font-family: var(--font-sans); font-size: var(--text-base); color: var(--text-body); }
.checkbox__box { position: relative; width: 22px; height: 22px; flex-shrink: 0; }
.checkbox__input { position: absolute; inset: 0; opacity: 0; cursor: inherit; width: 22px; height: 22px; margin: 0; }
.checkbox__indicator {
  position: absolute; inset: 0; border-radius: var(--radius-sm); border: 2px solid var(--border-input);
  background: var(--off-white); display: flex; align-items: center; justify-content: center;
  transition: background var(--duration-fast) var(--ease-standard), border-color var(--duration-fast) var(--ease-standard);
  pointer-events: none;
}
.checkbox__indicator svg { display: none; }
.checkbox__input:checked + .checkbox__indicator { border-color: var(--teal-600); background: var(--teal-600); }
.checkbox__input:checked + .checkbox__indicator svg { display: block; }
.checkbox__input:focus-visible + .checkbox__indicator { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

/* --- Icon circle (used in Herausforderungen chips + Ansatz principles) --- */
.icon-circle {
  display: inline-flex; align-items: center; justify-content: center;
  width: 60px; height: 60px; border-radius: var(--radius-full); box-shadow: var(--shadow-md);
}
.icon-circle--sm { width: 56px; height: 56px; }