/* ==============================================
   ROOT
============================================== */
:root {
  --bg:       #0b0b0b;
  --bg2:      #121212;
  --panel:    #151515;
  --border:   rgba(255,255,255,.1);
  --border2:  rgba(255,255,255,.06);
  --text:     #d4d4d4;
  --muted:    #666;
  --accent:   #e8e8e8;
  --mark-bg:  rgba(255,255,255,.1);
  --mark-fg:  #f0f0f0;
  --tag-bg:   rgba(255,255,255,.08);
  --tag-fg:   #c8c8c8;
  --tag-brd:  rgba(255,255,255,.15);
  --key:      #888;
  --val:      #d4d4d4;
  --font:     'JetBrains Mono', 'Fira Mono', 'Cascadia Code', ui-monospace, monospace;
  --radius:   6px;
  --radius-lg: 10px;
}

*,*::before,*::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
img { display: block; max-width: 100%; height: auto; }
a { color: var(--text); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ==============================================
   BODY
============================================== */
body {
  background:
    radial-gradient(circle at top, rgba(255,255,255,.05), transparent 36%),
    var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  line-height: 1.78;
  -webkit-font-smoothing: antialiased;
}

.wrap {
  max-width: 940px;
  margin: 0 auto;
  padding: 64px 28px 110px;
}

/* ==============================================
   HEADER
============================================== */
.header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 56px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--border2);
}

.header-main { flex: 1; min-width: 0; }

.site-title {
  font-size: clamp(22px, 4vw, 30px);
  font-weight: 800;
  color: var(--accent);
  margin: 0 0 8px;
  letter-spacing: -0.5px;
}

.header-meta {
  font-size: 12px;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.meta-sep { color: var(--border); }

.meta-val {
  color: var(--text);
  font-weight: 500;
}

.corner-gif {
  width: clamp(100px, 20vw, 160px);
  border-radius: var(--radius-lg);
  flex-shrink: 0;
  opacity: .9;
}

/* ==============================================
   SECTIONS
============================================== */
.section {
  margin-bottom: 46px;
}

.section-heading {
  font-size: 18px;
  font-weight: 800;
  color: var(--accent);
  margin: 0 0 16px;
  letter-spacing: -0.3px;
}

.heading-note {
  font-size: 14px;
  font-weight: 400;
  color: var(--muted);
  font-style: italic;
}

/* ==============================================
   INTRO TEXT
============================================== */
.intro-text {
  margin: 0 0 10px;
  font-size: 15px;
  line-height: 1.82;
  color: var(--text);
}

.aside {
  color: var(--muted);
  font-style: italic;
  font-size: 13px;
}

.aside-line {
  font-size: 12px;
  color: var(--muted);
  margin: 8px 0 0;
  font-style: italic;
}

/* ==============================================
   MARK / HIGHLIGHT
============================================== */
mark {
  background: var(--mark-bg);
  color: var(--mark-fg);
  padding: 1px 6px;
  border-radius: 4px;
  font-style: normal;
  border: 1px solid rgba(255,255,255,.12);
}

.mark-inline {
  background: var(--mark-bg);
  color: var(--mark-fg);
  padding: 1px 6px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,.12);
}

/* ==============================================
   TAGS
============================================== */
.tag {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--tag-fg);
  border: 1px solid var(--tag-brd);
  border-radius: 4px;
  padding: 1px 7px;
  font-size: 13px;
  font-family: var(--font);
  white-space: nowrap;
}

.tag-sm {
  font-size: 12px;
  padding: 0px 5px;
}

/* ==============================================
   LISTS
============================================== */
.prose-list {
  list-style: none;
  padding: 0;
  margin: 0 0 8px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.prose-list li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: 15px;
  color: var(--text);
}

.prose-list li::before {
  content: "–";
  color: var(--muted);
  flex-shrink: 0;
}

/* ==============================================
   CODE PANEL
============================================== */
.code-panel {
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.015)), var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 16px 20px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.code-row {
  display: flex;
  align-items: baseline;
  gap: 0;
  font-size: 13px;
  line-height: 1.6;
}

.ck {
  color: var(--key);
  min-width: 180px;
  flex-shrink: 0;
}

.cc {
  color: var(--muted);
  margin-right: 10px;
}

.cv {
  color: var(--val);
}

/* ==============================================
   ABOUT BLOCK
============================================== */
.about-block {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.about-block p {
  margin: 0;
  font-size: 15px;
  line-height: 1.82;
}

/* ==============================================
   LETTERBOX
============================================== */
.letterbox-panel {
  background: linear-gradient(180deg, rgba(255,255,255,.03), rgba(255,255,255,.015)), var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 14px;
}

.lb-textarea {
  width: 100%;
  min-height: 100px;
  padding: 14px 16px;
  background: transparent;
  border: none;
  outline: none;
  resize: none;
  color: var(--text);
  font-family: var(--font);
  font-size: 13px;
  line-height: 1.6;
}

.lb-textarea::placeholder { color: var(--muted); }

.lb-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 10px 12px;
  border-top: 1px solid var(--border2);
}

/* ==============================================
   GIF PICKER
============================================== */
.gif-picker {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.gif-btn {
  padding: 0;
  border: 1px solid var(--border2);
  background: var(--tag-bg);
  cursor: pointer;
  border-radius: var(--radius);
  transition: border-color .15s, transform .15s;
}

.gif-btn:hover { transform: translateY(-1px); border-color: var(--border); }

.gif-btn img {
  width: 32px;
  height: 32px;
  object-fit: cover;
  border-radius: calc(var(--radius) - 1px);
  display: block;
}

.gif-btn.selected { outline: 2px solid rgba(255,255,255,.5); outline-offset: 2px; }

/* ==============================================
   SEND BUTTON
============================================== */
.send-btn {
  width: 40px;
  height: 40px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: rgba(255,255,255,.05);
  color: var(--text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background .15s, transform .15s;
  flex-shrink: 0;
}

.send-btn:hover { background: rgba(255,255,255,.1); transform: translateY(-1px); }
.send-btn svg { width: 16px; height: 16px; }

.letter-status {
  margin-top: 8px;
  font-size: 12px;
  color: var(--muted);
  min-height: 16px;
}

/* ==============================================
   SHOUTBOX / LETTERS
============================================== */
.letters-list { margin-top: 8px; }

.letter-item {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  padding: 14px 16px;
  margin-bottom: 8px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border2);
  background: linear-gradient(180deg, rgba(255,255,255,.02), rgba(255,255,255,.01)), var(--panel);
  box-shadow: 0 8px 30px rgba(0,0,0,.18);
  transition: border-color .15s, transform .15s;
}

.letter-item:hover { border-color: var(--border); transform: translateY(-1px); }

.letter-msg {
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.6;
  font-size: 13px;
  flex: 1;
}

.letter-time {
  font-size: 11px;
  color: var(--muted);
  white-space: nowrap;
  flex-shrink: 0;
  padding-top: 2px;
}

.letter-answer-label {
  display: inline-block;
  margin-top: 10px;
  margin-right: 6px;
  padding: 1px 7px;
  border-radius: 4px;
  background: rgba(90,160,255,.15);
  color: #9ec5ff;
  font-size: 11px;
  font-weight: 700;
  border: 1px solid rgba(90,160,255,.2);
}

.msg-gif-inline {
  display: inline-block;
  height: 1.2em;
  width: auto;
  margin-left: 6px;
  vertical-align: -3px;
  border-radius: 4px;
}

.msg-gif-big {
  display: block;
  width: 160px;
  max-width: 100%;
  margin-top: 10px;
  border-radius: var(--radius);
}

/* ==============================================
   PAGINATION
============================================== */
.pagination {
  margin-top: 12px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.page-btn {
  min-width: 32px;
  height: 32px;
  padding: 0 8px;
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  background: var(--bg2);
  color: var(--text);
  cursor: pointer;
  font: inherit;
  font-size: 12px;
  transition: background .15s, border-color .15s;
}

.page-btn:hover { background: rgba(255,255,255,.07); border-color: var(--border); }
.page-btn.is-active { background: rgba(255,255,255,.12); border-color: rgba(255,255,255,.3); }

/* ==============================================
   FOOTER
============================================== */
.site-footer {
  margin-top: 56px;
  padding-top: 20px;
  border-top: 1px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--muted);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 8px;
}

.site-footer a:hover { color: var(--text); }

/* ==============================================
   RESPONSIVE
============================================== */
@media (max-width: 600px) {
  .wrap { max-width: 100%; padding: 34px 16px 78px; }
  .header { flex-direction: column-reverse; gap: 16px; }
  .corner-gif { width: 100%; max-width: 200px; }
  .ck { min-width: 130px; }
  .letter-item { flex-direction: column; gap: 8px; }
  .letter-time { align-self: flex-end; }
}

@media (max-width: 400px) {
  .site-title { font-size: 20px; }
  .section-heading { font-size: 16px; }
  .lb-bar { flex-direction: column; align-items: flex-start; }
  .send-btn { width: 100%; height: 38px; border-radius: var(--radius); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation: none !important;
    transition: none !important;
  }
}

/* ==============================================
   COOKIE BANNER
============================================== */
.cookie-banner {
  position: fixed;
  bottom: 20px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 40px);
  max-width: 680px;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 14px 18px;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  z-index: 9999;
  box-shadow: 0 4px 32px rgba(0,0,0,.6);
  font-size: 13px;
  color: var(--muted);
  animation: slideUp .25s ease;
}

.cookie-banner[hidden] { display: none !important; }

@keyframes slideUp {
  from { opacity: 0; transform: translateX(-50%) translateY(16px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

.cookie-text {
  flex: 1;
  min-width: 200px;
  line-height: 1.5;
}

.cookie-link {
  color: var(--text);
  text-decoration: underline;
  white-space: nowrap;
}

.cookie-btn {
  padding: 6px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg2);
  color: var(--text);
  font: inherit;
  font-size: 12px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s, border-color .15s;
}

.cookie-btn:hover { background: rgba(255,255,255,.08); border-color: var(--border); }

.cookie-btn--accept {
  background: rgba(255,255,255,.1);
  border-color: rgba(255,255,255,.2);
}

.cookie-btn--accept:hover {
  background: rgba(255,255,255,.16);
}

@media (max-width: 500px) {
  .cookie-banner { bottom: 10px; padding: 12px 14px; font-size: 12px; }
  .cookie-text { font-size: 11px; }
}