.orp-postkasse {
  --orp-forest: #183b2b;
  --orp-forest-dark: #0d241a;
  --orp-moss: #40634c;
  --orp-paper: #fff8e7;
  --orp-paper-deep: #ead9b5;
  --orp-ink: #2b241c;
  --orp-gold: #d5ad5a;
  --orp-orange: #e97843;
  --orp-orange-dark: #b84f25;
  --orp-red: #8d2f24;
  --orp-shadow: 0 24px 70px rgba(7, 23, 16, 0.28);
  max-width: 900px;
  margin: 2rem auto;
  color: var(--orp-ink);
  font-family: inherit;
}

.orp-postkasse *,
.orp-postkasse *::before,
.orp-postkasse *::after {
  box-sizing: border-box;
}

.orp-postkasse__shell {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(71, 49, 25, 0.22);
  border-radius: 26px;
  background:
    radial-gradient(circle at 80% 5%, rgba(213, 173, 90, 0.2), transparent 30%),
    linear-gradient(180deg, #fbf4e4 0%, #f3e7cd 100%);
  box-shadow: var(--orp-shadow);
}

.orp-postkasse__topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  color: #fff;
  background:
    linear-gradient(135deg, rgba(13, 36, 26, 0.98), rgba(24, 59, 43, 0.95)),
    repeating-linear-gradient(45deg, transparent, transparent 13px, rgba(255,255,255,0.025) 13px, rgba(255,255,255,0.025) 26px);
}

.orp-postkasse__topbar h2 {
  margin: 0;
  color: #fff;
  font-size: clamp(1.5rem, 4vw, 2.3rem);
  line-height: 1.08;
}

.orp-postkasse__eyebrow {
  margin: 0 0 0.2rem;
  color: #efd895;
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.orp-sound-toggle {
  display: inline-flex;
  min-height: 42px;
  flex: 0 0 auto;
  align-items: center;
  gap: 0.45rem;
  cursor: pointer;
  border: 1px solid rgba(255,255,255,0.28);
  border-radius: 999px;
  color: #fff;
  background: rgba(0,0,0,0.18);
  font: inherit;
  font-size: 0.86rem;
  font-weight: 800;
  padding: 0.55rem 0.8rem;
}

.orp-sound-toggle:focus-visible,
.orp-button:focus-visible,
.orp-code-form input:focus-visible {
  outline: 3px solid rgba(233, 120, 67, 0.42);
  outline-offset: 2px;
}

.orp-stage {
  padding: clamp(1.25rem, 4vw, 2.25rem);
}

.orp-stage[hidden] {
  display: none !important;
}

.orp-stage--code > p {
  max-width: 650px;
  margin-top: 0;
  font-size: 1.05rem;
  line-height: 1.6;
}

.orp-code-form label {
  display: block;
  margin-bottom: 0.45rem;
  font-weight: 900;
}

.orp-code-form__row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 0.75rem;
}

.orp-code-form input {
  min-height: 54px;
  width: 100%;
  border: 2px solid rgba(24, 59, 43, 0.3);
  border-radius: 13px;
  color: var(--orp-ink);
  background: #fff;
  font: inherit;
  font-size: 1.1rem;
  font-weight: 850;
  letter-spacing: 0.07em;
  padding: 0.75rem 0.9rem;
  text-transform: uppercase;
}

.orp-button {
  display: inline-flex;
  min-height: 49px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 2px solid transparent;
  border-radius: 13px;
  font: inherit;
  font-weight: 900;
  line-height: 1.15;
  padding: 0.75rem 1.05rem;
  text-decoration: none;
  transition: transform 0.16s ease, box-shadow 0.16s ease, background 0.16s ease;
}

.orp-button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(15, 38, 27, 0.16);
}

.orp-button:disabled {
  cursor: wait;
  opacity: 0.62;
}

.orp-button--primary {
  border-color: var(--orp-orange);
  color: #201c17;
  background: var(--orp-orange);
}

.orp-button--primary:hover:not(:disabled) {
  border-color: #f18b59;
  background: #f18b59;
}

.orp-button--secondary {
  border-color: rgba(24, 59, 43, 0.34);
  color: var(--orp-forest-dark);
  background: #fff;
}

.orp-button--text {
  border-color: transparent;
  color: #4c584f;
  background: transparent;
  text-decoration: underline;
  text-underline-offset: 0.18em;
}

.orp-stage--envelope {
  text-align: center;
}

.orp-envelope-intro {
  margin: 0 0 1.2rem;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(1.25rem, 3vw, 1.65rem);
  font-weight: 700;
}

.orp-envelope-scene {
  display: grid;
  min-height: 300px;
  place-items: center;
  perspective: 1200px;
}

.orp-envelope {
  position: relative;
  width: min(430px, 82vw);
  aspect-ratio: 1.62 / 1;
  filter: drop-shadow(0 26px 25px rgba(48, 34, 19, 0.27));
  transform: translateZ(0);
  transform-style: preserve-3d;
}

.orp-envelope__back,
.orp-envelope__front,
.orp-envelope__flap,
.orp-envelope__letter-peek {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(92, 65, 32, 0.27);
}

.orp-envelope__back {
  border-radius: 10px;
  background:
    linear-gradient(135deg, transparent 49.5%, rgba(91, 64, 35, 0.12) 50%, transparent 50.5%),
    linear-gradient(225deg, transparent 49.5%, rgba(91, 64, 35, 0.12) 50%, transparent 50.5%),
    linear-gradient(180deg, #e8d5ad 0%, #d8bd88 100%);
}

.orp-envelope__letter-peek {
  inset: 11% 9% 5%;
  border-radius: 6px 6px 2px 2px;
  background:
    repeating-linear-gradient(180deg, transparent 0 22px, rgba(83, 68, 48, 0.09) 22px 23px),
    #fff9e8;
  transform: translateY(14%);
}

.orp-envelope__front {
  clip-path: polygon(0 0, 50% 54%, 100% 0, 100% 100%, 0 100%);
  border-radius: 10px;
  background:
    linear-gradient(145deg, rgba(255,255,255,0.18), transparent 45%),
    #dfc796;
}

.orp-envelope__flap {
  clip-path: polygon(0 0, 100% 0, 50% 72%);
  border-radius: 10px 10px 0 0;
  background:
    linear-gradient(180deg, rgba(255,255,255,0.15), transparent 50%),
    #ead7b0;
  transform-origin: top center;
  transform: rotateX(0deg);
  transition: transform 0.58s cubic-bezier(.2,.78,.25,1);
  z-index: 4;
}

.orp-envelope__seal,
.orp-letter__seal {
  display: grid;
  width: 64px;
  height: 64px;
  place-items: center;
  overflow: hidden;
  border: 3px solid rgba(255,255,255,0.32);
  border-radius: 50%;
  color: #f9e4b6;
  background-color: var(--orp-red);
  background-position: center;
  background-size: cover;
  box-shadow: 0 7px 15px rgba(79, 24, 18, 0.3), inset 0 0 0 2px rgba(75, 21, 17, 0.25);
  font-family: Georgia, serif;
  font-size: 1.8rem;
  font-weight: 800;
}

.orp-envelope__seal {
  position: absolute;
  top: 43%;
  left: 50%;
  z-index: 6;
  transform: translate(-50%, -50%);
}

.orp-envelope__seal.has-image span,
.orp-letter__seal.has-image span {
  visibility: hidden;
}

.orp-stage--envelope .orp-button {
  margin: 0.35rem;
}

.orp-stage--letter {
  position: relative;
  padding-top: 1.2rem;
}

.orp-letter {
  max-width: 760px;
  margin: 0 auto;
  opacity: 0;
  transform: translateY(65px) scale(0.78) rotateX(-10deg);
  transform-origin: top center;
  transition: opacity 0.38s ease, transform 0.68s cubic-bezier(.2,.8,.23,1);
}

.orp-letter__paper {
  position: relative;
  overflow: hidden;
  border: 1px solid rgba(91, 64, 31, 0.28);
  border-radius: 5px 12px 8px 4px;
  background:
    radial-gradient(circle at 12% 15%, rgba(122, 83, 34, 0.07), transparent 22%),
    radial-gradient(circle at 88% 80%, rgba(122, 83, 34, 0.06), transparent 24%),
    repeating-linear-gradient(0deg, rgba(95, 69, 38, 0.02) 0 1px, transparent 1px 5px),
    var(--orp-paper);
  box-shadow: 0 20px 50px rgba(54, 38, 20, 0.24);
  padding: clamp(1.35rem, 5vw, 3.2rem);
}

.orp-letter__paper::before,
.orp-letter__paper::after {
  position: absolute;
  content: '';
  pointer-events: none;
}

.orp-letter__paper::before {
  inset: 12px;
  border: 1px solid rgba(94, 70, 42, 0.12);
  border-radius: 3px 9px 6px 2px;
}

.orp-letter__paper::after {
  width: 180px;
  height: 180px;
  right: -80px;
  bottom: -95px;
  border-radius: 50%;
  background: rgba(213, 173, 90, 0.08);
}

.orp-letter__header,
.orp-letter__greeting,
.orp-letter__media,
.orp-letter__content,
.orp-letter__closing,
.orp-letter__footer {
  position: relative;
  z-index: 1;
}

.orp-letter__type {
  margin: 0 0 0.3rem;
  color: var(--orp-moss);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0.11em;
  text-transform: uppercase;
}

.orp-letter__title {
  margin: 0 0 1.5rem;
  color: #2a2117;
  font-family: Georgia, 'Times New Roman', serif;
  font-size: clamp(1.8rem, 5vw, 3rem);
  line-height: 1.06;
}

.orp-letter__greeting,
.orp-letter__content,
.orp-letter__closing {
  font-size: clamp(1rem, 2.2vw, 1.12rem);
  line-height: 1.7;
}

.orp-letter__content h2,
.orp-letter__content h3 {
  color: var(--orp-forest-dark);
  font-family: Georgia, 'Times New Roman', serif;
}

.orp-letter__content > :first-child,
.orp-letter__greeting > :first-child,
.orp-letter__closing > :first-child {
  margin-top: 0;
}

.orp-letter__content > :last-child,
.orp-letter__greeting > :last-child,
.orp-letter__closing > :last-child {
  margin-bottom: 0;
}

.orp-letter__media {
  display: grid;
  gap: 1rem;
  margin: 1.3rem 0;
}

.orp-letter__image,
.orp-letter__video {
  display: block;
  width: 100%;
  max-height: 520px;
  border: 1px solid rgba(69, 51, 31, 0.2);
  border-radius: 10px;
  object-fit: contain;
  background: rgba(255,255,255,0.4);
  box-shadow: 0 8px 24px rgba(52, 38, 21, 0.12);
}

.orp-letter__audio {
  width: 100%;
}

.orp-letter__attachment {
  justify-self: start;
}

.orp-letter__footer {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid rgba(78, 58, 34, 0.18);
}

.orp-letter__signature span,
.orp-letter__signature strong {
  display: block;
}

.orp-letter__signature span {
  margin-bottom: 0.2rem;
  color: #5f584f;
  font-size: 0.86rem;
}

.orp-letter__signature strong {
  font-family: Georgia, 'Times New Roman', serif;
  font-size: 1.35rem;
}

.orp-letter-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
  margin-top: 1.2rem;
}

.orp-postkasse__shell.is-opening .orp-letter,
.orp-postkasse__shell.is-letter-open .orp-letter {
  opacity: 1;
  transform: translateY(0) scale(1) rotateX(0deg);
}

.orp-postkasse__shell.is-closing .orp-letter {
  opacity: 0;
  transform: translateY(45px) scale(0.84) rotateX(-7deg);
}

.orp-envelope__letter-peek,
.orp-envelope__seal {
  transition: transform 0.52s cubic-bezier(.2,.78,.25,1), opacity 0.3s ease;
}

.orp-postkasse__shell.is-envelope-opening .orp-envelope__flap {
  z-index: 1;
  transform: rotateX(155deg);
}

.orp-postkasse__shell.is-envelope-opening .orp-envelope__letter-peek {
  z-index: 3;
  transform: translateY(-42%);
}

.orp-postkasse__shell.is-envelope-opening .orp-envelope__seal {
  opacity: 0;
  transform: translate(-50%, -50%) scale(0.72);
}

.orp-postkasse__shell.is-envelope-closing .orp-envelope__flap {
  animation: orp-flap-close 0.52s cubic-bezier(.2,.78,.25,1) both;
}

.orp-postkasse__shell.is-envelope-closing .orp-envelope__letter-peek {
  animation: orp-letter-return 0.52s cubic-bezier(.2,.78,.25,1) both;
}

.orp-postkasse__shell.is-envelope-closing .orp-envelope__seal {
  animation: orp-seal-return 0.52s ease both;
}

.orp-status {
  min-height: 1.2rem;
  padding: 0 1.5rem 1rem;
  color: #5b625c;
  font-size: 0.92rem;
  font-weight: 800;
  text-align: center;
}

.orp-postkasse.is-loading .orp-status::before {
  display: inline-block;
  width: 0.85rem;
  height: 0.85rem;
  margin-right: 0.5rem;
  border: 2px solid currentColor;
  border-right-color: transparent;
  border-radius: 50%;
  content: '';
  vertical-align: -0.12rem;
  animation: orp-spin 0.75s linear infinite;
}

.orp-noscript {
  margin: 0;
  padding: 0 1.5rem 1rem;
  color: #7a2f24;
  font-weight: 800;
}

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

@keyframes orp-flap-close {
  from { z-index: 1; transform: rotateX(155deg); }
  to { z-index: 4; transform: rotateX(0deg); }
}

@keyframes orp-letter-return {
  from { z-index: 3; transform: translateY(-42%); }
  to { z-index: 1; transform: translateY(14%); }
}

@keyframes orp-seal-return {
  from { opacity: 0; transform: translate(-50%, -50%) scale(0.72); }
  to { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

@media (max-width: 650px) {
  .orp-postkasse__topbar {
    align-items: flex-start;
  }

  .orp-sound-toggle__text {
    display: none;
  }

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

  .orp-code-form__row .orp-button {
    width: 100%;
  }

  .orp-envelope-scene {
    min-height: 240px;
  }

  .orp-letter__paper {
    padding: 1.4rem 1.15rem 1.6rem;
  }

  .orp-letter-actions .orp-button {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .orp-postkasse *,
  .orp-postkasse *::before,
  .orp-postkasse *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }

  .orp-letter,
  .orp-postkasse__shell.is-opening .orp-letter,
  .orp-postkasse__shell.is-letter-open .orp-letter,
  .orp-postkasse__shell.is-closing .orp-letter {
    transform: none;
  }
}