@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ── Variables ── */
:root {
  --bg:          #f5f5f5;
  --surface:     #ffffff;
  --surface-alt: #fafafa;
  --border:      #e8e8e8;
  --text-primary:#111111;
  --text-secondary:#6b7280;
  --text-muted:  #9ca3af;
  --accent:      #111111;
  --accent-hover:#333333;
  --like:        #2563eb;
  --like-light:  #eff6ff;
  --like-hover:  #1d4ed8;
  --report:      #dc2626;
  --report-light:#fef2f2;
  --success:     #16a34a;
  --radius:      14px;
  --radius-sm:   8px;
  --shadow:      0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:   0 4px 12px rgba(0,0,0,.10);
  --transition:  all .18s ease;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }

/* ── Layout ── */
.app-wrapper {
  max-width: 600px;
  margin: 0 auto;
  padding-bottom: 80px;
}

/* ── Header ── */
.app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}

.header-brand {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.header-brand h1 {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.5px;
  line-height: 1;
}

.header-brand span {
  font-size: 11px;
  color: var(--text-secondary);
  font-weight: 400;
  letter-spacing: 0.1px;
  line-height: 1;
  margin-top: 2px;
}

.header-action a {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: var(--accent);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  padding: 8px 14px;
  border-radius: 20px;
  transition: var(--transition);
}
.header-action a:hover { background: var(--accent-hover); }

/* ── Feed ── */
.feed-section { padding: 12px 0; }

.section-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  color: var(--text-muted);
  padding: 8px 16px 12px;
}

/* ── Paw Card ── */
.paw-card {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px;
  transition: background .12s ease;
  animation: fadeIn .25s ease forwards;
}
.paw-card:hover { background: var(--surface-alt); }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

.paw-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 8px;
}

.paw-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}

.paw-meta { flex: 1; min-width: 0; }
.paw-author {
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.paw-time {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 1px;
}

.paw-content {
  font-size: 15px;
  line-height: 1.55;
  color: var(--text-primary);
  word-break: break-word;
  margin-bottom: 12px;
}

.paw-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Buttons ── */
.btn-like, .btn-report {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: 1px solid var(--border);
  background: transparent;
  border-radius: 20px;
  padding: 5px 12px;
  font-family: inherit;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
}

.btn-like:hover:not(:disabled) {
  background: var(--like-light);
  border-color: var(--like);
  color: var(--like);
}

.btn-like.liked {
  background: var(--like-light);
  border-color: var(--like);
  color: var(--like);
  cursor: default;
  pointer-events: none;
}

.btn-like:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.like-count {
  font-weight: 600;
}

.btn-report {
  font-size: 12px;
  padding: 5px 10px;
  margin-left: auto;
}
.btn-report:hover:not(:disabled) {
  background: var(--report-light);
  border-color: var(--report);
  color: var(--report);
}
.btn-report.reported {
  color: var(--report);
  border-color: var(--report);
  background: var(--report-light);
  cursor: default;
  pointer-events: none;
}
.btn-report:disabled { opacity: 0.6; cursor: not-allowed; }

/* ── Loading skeletons ── */
.skeleton-card {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 16px;
}
.skeleton-line {
  background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
  background-size: 200% 100%;
  animation: shimmer 1.4s infinite;
  border-radius: 6px;
  height: 13px;
  margin-bottom: 8px;
}
.skeleton-line.short { width: 40%; }
.skeleton-line.long  { width: 90%; }
.skeleton-line.mid   { width: 70%; }
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position:  200% 0; }
}

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 60px 24px;
  color: var(--text-secondary);
}
.empty-state .empty-icon { font-size: 40px; margin-bottom: 12px; }
.empty-state p { font-size: 15px; }
.empty-state a {
  display: inline-block;
  margin-top: 16px;
  background: var(--accent);
  color: #fff;
  padding: 10px 20px;
  border-radius: 20px;
  font-weight: 600;
  font-size: 14px;
  transition: var(--transition);
}
.empty-state a:hover { background: var(--accent-hover); }

/* ── Toast ── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #111;
  color: #fff;
  padding: 10px 20px;
  border-radius: 24px;
  font-size: 13px;
  font-weight: 500;
  z-index: 999;
  transition: transform .3s cubic-bezier(.34,1.56,.64,1);
  pointer-events: none;
  white-space: nowrap;
}
.toast.show { transform: translateX(-50%) translateY(0); }

/* ── Footer ── */
.app-footer {
  text-align: center;
  padding: 24px 0 12px;
  font-size: 12px;
  color: var(--text-muted);
}

/* ── New Paw Page ── */
.new-paw-wrapper {
  max-width: 600px;
  margin: 0 auto;
  padding-bottom: 40px;
}

.new-paw-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 56px;
}

.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 10px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}
.btn-back:hover { background: var(--bg); color: var(--text-primary); }

.new-paw-title {
  font-size: 17px;
  font-weight: 700;
}

.new-paw-form {
  padding: 20px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-input, .form-textarea {
  font-family: inherit;
  font-size: 15px;
  background: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text-primary);
  outline: none;
  transition: border-color .15s ease, box-shadow .15s ease;
  width: 100%;
}
.form-input::placeholder, .form-textarea::placeholder { color: var(--text-muted); }
.form-input:focus, .form-textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(17,17,17,0.08);
}

.form-textarea {
  resize: none;
  min-height: 140px;
  line-height: 1.55;
}

.char-counter {
  text-align: right;
  font-size: 12px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
  transition: color .15s ease;
}
.char-counter.warn { color: #f59e0b; }
.char-counter.danger { color: var(--report); font-weight: 600; }

.btn-publish {
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: 20px;
  padding: 13px;
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: var(--transition);
  width: 100%;
  letter-spacing: -0.2px;
}
.btn-publish:hover:not(:disabled) { background: var(--accent-hover); transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-publish:disabled { opacity: 0.6; cursor: not-allowed; transform: none; box-shadow: none; }

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  padding-top: 4px;
}

/* ── Responsive ── */
@media (min-width: 640px) {
  .paw-card { border-radius: var(--radius); border: 1px solid var(--border); margin: 0 16px 8px; }
  .paw-card:hover { background: var(--surface-alt); }
  .skeleton-card { border-radius: var(--radius); margin: 0 16px 8px; }
}