/* ============ Send-a-letter page ============ */

.letters-hero {
  padding-top: var(--space-8);
}

.letters-hero__title {
  font-size: var(--step-h1);
  letter-spacing: -0.015em;
  line-height: 1.08;
  margin-bottom: var(--space-5);
}

.letters-hero__intro {
  font-family: var(--font-accent);
  font-style: italic;
  font-size: var(--step-lead);
  color: rgba(0, 0, 0, 0.62);
  line-height: 1.55;
  max-width: 28rem;
  margin-bottom: var(--space-6);
}

/* --- modal --- */
.letter-modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-5);
  visibility: hidden;
  opacity: 0;
}

.letter-modal[data-state="open"] {
  visibility: visible;
  opacity: 1;
}

.letter-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
}

.letter-modal__panel {
  position: relative;
  background: var(--bg);
  width: 100%;
  max-width: 34rem;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-7);
  box-shadow: 0 2rem 4rem -1rem rgba(0, 0, 0, 0.4);
}

/* --- read-a-letter modal: transparent shell, the letter-sheet itself
   (from letter-read.css) is the visual focus, floating over the backdrop --- */
.letter-modal--read .letter-modal__panel {
  background: transparent;
  box-shadow: none;
  max-width: 40rem;
  padding: var(--space-8) var(--space-5) var(--space-6);
  overflow: visible;
}

.letter-modal--read .letter-modal__close {
  color: rgba(255, 255, 255, 0.8);
  top: 0.25rem;
  right: 0.25rem;
}

.letter-modal--read .letter-modal__close:hover {
  color: #fff;
}

.letter-modal--read .letter-stage {
  min-height: 26rem;
}

@media (max-width: 30rem) {
  .letter-modal--read .letter-modal__panel {
    padding: var(--space-7) 0 var(--space-5);
  }
}

.letter-modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  width: 2.25rem;
  height: 2.25rem;
  border: 0;
  background: transparent;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: var(--ink-50);
}

.letter-modal__close:hover {
  color: var(--ink);
}

.letter-modal__title {
  font-size: var(--step-h2);
  margin-bottom: var(--space-5);
  padding-right: var(--space-6);
}

.letter-modal .letter-form {
  background: transparent;
  padding: 0;
  border: 0;
}

/* --- form --- */
.letter-form {
  position: relative;
  background: var(--bg-alt);
  padding: var(--space-7);
  border: 1px solid var(--ink-08);
}

.letter-form__row {
  margin-bottom: var(--space-5);
  display: flex;
  flex-direction: column;
}

.letter-form label,
.letter-form__label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-50);
  margin-bottom: 0.5rem;
}

.letter-form input[type="text"],
.letter-form textarea {
  border: 1px solid var(--ink-14);
  background: var(--bg);
  padding: 0.85rem 1rem;
  font-family: var(--font-body);
  font-size: var(--step-body);
  color: var(--ink);
  resize: vertical;
}

.letter-form input[type="text"]:focus,
.letter-form textarea:focus {
  outline: none;
  border-color: var(--plum);
}

.letter-form__counter {
  align-self: flex-end;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--ink-50);
  margin-top: 0.35rem;
}

.letter-picker {
  display: flex;
  gap: 0.75rem;
}

.letter-picker__option {
  width: 3.5rem;
  height: 3.5rem;
  border: 1px solid var(--ink-14);
  background: var(--bg);
  font-size: 1.4rem;
  color: var(--ink);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-editorial), background var(--dur-fast) var(--ease-editorial), color var(--dur-fast) var(--ease-editorial);
}

.letter-picker__option:hover {
  border-color: var(--plum);
}

.letter-picker__option.is-active {
  background: var(--plum);
  border-color: var(--plum);
  color: var(--bg);
}

.letter-picker__seal {
  width: 3.5rem;
  height: 3.5rem;
  padding: 0.4rem;
  border: 1px solid var(--ink-14);
  background: var(--bg);
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-editorial), transform var(--dur-fast) var(--ease-editorial);
}

.letter-picker__seal img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.letter-picker__seal:hover {
  border-color: var(--plum);
}

.letter-picker__seal.is-active {
  border-color: var(--plum);
  transform: scale(1.05);
  box-shadow: 0 0 0 1px var(--plum);
}

.letter-form__submit {
  width: 100%;
  justify-content: center;
}

.letter-form__note {
  font-size: var(--step-caption);
  color: var(--ink-50);
  font-style: italic;
  margin-top: 0.75rem;
  text-align: center;
}

.letter-form__status {
  font-size: var(--step-small);
  text-align: center;
  min-height: 1.2rem;
  margin: 0.5rem 0 0;
  color: var(--plum);
}

/* --- gallery --- */
.letters-empty {
  text-align: center;
  font-family: var(--font-accent);
  font-style: italic;
  font-size: var(--step-lead);
  color: var(--ink-50);
  padding-block: var(--space-8);
}

.envelope-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
  gap: var(--space-7) var(--space-6);
}

.envelope {
  display: block;
  color: inherit;
}

.envelope__body {
  display: block;
  width: 100%;
  position: relative;
  aspect-ratio: 3 / 2;
  overflow: visible;
}

.envelope__back {
  position: absolute;
  inset: 0;
  background: #e7dbc0;
  z-index: 0;
  box-shadow: 0 1.25rem 2rem -1rem rgba(0, 0, 0, 0.3);
}

/* the letter itself: sits low and mostly hidden at rest; on open it
   rises up and pokes out through the flap opening at the top */
.envelope__paper {
  position: absolute;
  left: 9%;
  right: 9%;
  bottom: 0;
  height: 90%;
  background: var(--bg);
  box-shadow: 0 -0.4rem 1rem rgba(0, 0, 0, 0.18);
  padding: 0.85rem 0.95rem 1.5rem;
  font-size: 0.8rem;
  line-height: 1.45;
  color: var(--ink);
  z-index: 1;
  transition: transform 0.5s var(--ease-editorial);
}

.envelope:hover .envelope__paper,
.envelope:focus-visible .envelope__paper {
  transform: translateY(-56%);
}

/* fills the two corners beside the flap's triangle, so the closed
   envelope reads as one solid shape; stays put even when the flap
   folds open (like the fixed "shoulders" of a real envelope) */
.envelope__corners {
  position: absolute;
  inset: 0 0 55% 0;
  background: #ddceac;
  z-index: 2;
}

/* the fixed lower body of the envelope, in front of the letter so it
   only shows once it has risen above this edge */
.envelope__front {
  position: absolute;
  inset: 38% 0 0 0;
  background: #e2d3ac;
  z-index: 2;
  box-shadow: 0 0.35rem 0.5rem -0.3rem rgba(0, 0, 0, 0.15) inset;
}

.envelope__front::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.15;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

/* the flap: hinged at the top, folds back to open */
.envelope__flap {
  position: absolute;
  inset: 0 0 55% 0;
  background: #ddceac;
  clip-path: polygon(0 0, 100% 0, 50% 100%);
  transform-origin: top center;
  transition: transform 0.5s var(--ease-editorial), opacity 0.3s var(--ease-editorial) 0.15s;
  z-index: 3;
  box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.08);
}

.envelope__flap::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.15;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='120' height='120'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
}

.envelope:hover .envelope__flap,
.envelope:focus-visible .envelope__flap {
  transform: perspective(30rem) rotateX(-150deg);
  opacity: 0;
}

.envelope__seal {
  position: absolute;
  top: 38%;
  left: 50%;
  width: 24%;
  aspect-ratio: 1;
  transform: translate(-50%, -50%);
  z-index: 4;
  pointer-events: none;
}

.envelope__seal-half {
  position: absolute;
  inset: 0;
  background-size: contain;
  background-position: center;
  background-repeat: no-repeat;
  filter: drop-shadow(0 0.3rem 0.4rem rgba(0, 0, 0, 0.3));
  transition: transform 0.5s var(--ease-editorial), opacity 0.4s var(--ease-editorial);
}

.envelope__seal-half--left { clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%); }
.envelope__seal-half--right { clip-path: polygon(50% 0, 100% 0, 100% 100%, 50% 100%); }

.envelope:hover .envelope__seal-half--left,
.envelope:focus-visible .envelope__seal-half--left,
.envelope.is-opened .envelope__seal-half--left {
  transform: translate(-45%, 30%) rotate(-24deg);
  opacity: 0;
}

.envelope:hover .envelope__seal-half--right,
.envelope:focus-visible .envelope__seal-half--right,
.envelope.is-opened .envelope__seal-half--right {
  transform: translate(45%, 35%) rotate(22deg);
  opacity: 0;
}

.envelope__meta {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-top: 0.75rem;
  gap: 0.5rem;
}

.envelope__name {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1rem;
}

.envelope__meta-right {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0.25rem;
}

.envelope__like {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--plum);
}

.envelope__like i {
  font-style: normal;
}

.envelope__date {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.04em;
  color: var(--ink-50);
}