/* ScrapFeed App Styles — matches landing page design tokens */
@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=DM+Mono:wght@400;500&display=swap');

:root {
  --bg: #0a0a0a;
  --bg-elevated: #141414;
  --bg-card: #1a1a1a;
  --fg: #e8e4df;
  --fg-muted: #8a8580;
  --fg-dim: #5a5550;
  --accent: #c8956c;
  --accent-bright: #e0b08a;
  --accent-dim: #8a6040;
  --rust: #a0522d;
  --copper: #b87333;
  --steel: #6b7b8d;
  --steel-light: #8a9bae;
  --border: #2a2520;
  --border-accent: #3a3025;
  --danger: #c0392b;
  --success: #27ae60;
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { font-size: 16px; scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Space Grotesk', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}

/* ── NAV ── */
.app-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 1.5rem;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: 'DM Mono', monospace;
  font-weight: 500;
  font-size: 1rem;
  color: var(--accent);
  text-decoration: none;
  letter-spacing: 0.05em;
}

.nav-links {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.nav-btn {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.35rem 0.9rem;
  border-radius: 3px;
  cursor: pointer;
  border: 1px solid transparent;
  text-decoration: none;
  transition: all 0.2s ease;
  display: inline-block;
}

.nav-btn.ghost {
  color: var(--fg-muted);
  border-color: var(--border);
  background: transparent;
}
.nav-btn.ghost:hover { color: var(--fg); border-color: var(--border-accent); }

.nav-btn.primary {
  background: var(--accent);
  color: #0a0a0a;
  font-weight: 600;
}
.nav-btn.primary:hover { background: var(--accent-bright); }

/* ── MAIN CONTAINER ── */
.app-main {
  max-width: 860px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
}

/* ── PAGE HEADER ── */
.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--border);
}

.page-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
}

.page-subtitle {
  font-size: 0.9rem;
  color: var(--fg-muted);
  margin-top: 0.35rem;
}

/* ── FEED ── */
.feed-controls {
  display: flex;
  gap: 1rem;
  align-items: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.zip-input-wrap {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.zip-input {
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: 'DM Mono', monospace;
  font-size: 0.9rem;
  padding: 0.45rem 0.75rem;
  border-radius: 3px;
  width: 120px;
  outline: none;
  transition: border-color 0.2s;
}
.zip-input:focus { border-color: var(--accent-dim); }
.zip-input::placeholder { color: var(--fg-dim); }

.btn {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.45rem 1rem;
  border-radius: 3px;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.2s ease;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.btn-primary {
  background: var(--accent);
  color: #0a0a0a;
  font-weight: 600;
}
.btn-primary:hover { background: var(--accent-bright); }

.btn-ghost {
  background: transparent;
  border-color: var(--border);
  color: var(--fg-muted);
}
.btn-ghost:hover { border-color: var(--border-accent); color: var(--fg); }

.btn-danger {
  background: transparent;
  border-color: var(--danger);
  color: var(--danger);
}
.btn-danger:hover { background: var(--danger); color: #fff; }

.btn-claim {
  background: var(--copper);
  color: #0a0a0a;
  font-weight: 600;
  border-color: transparent;
}
.btn-claim:hover { background: var(--accent-bright); }

/* ── POST CARDS ── */
.feed-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1px;
  background: var(--border);
}

.post-card {
  background: var(--bg-card);
  cursor: pointer;
  transition: background 0.2s;
  display: flex;
  flex-direction: column;
}
.post-card:hover { background: var(--bg-elevated); }

.post-img {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  display: block;
}

.post-img-placeholder {
  width: 100%;
  aspect-ratio: 4/3;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}

.post-body {
  padding: 1rem 1.25rem 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.post-meta {
  display: flex;
  gap: 0.5rem;
  align-items: center;
}

.cat-tag {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 0.2rem 0.5rem;
  border-radius: 2px;
}

.cat-appliance { background: rgba(200,149,108,0.15); color: var(--accent); }
.cat-metal { background: rgba(107,123,141,0.15); color: var(--steel-light); }
.cat-other { background: rgba(90,85,80,0.3); color: var(--fg-muted); }

.post-zip {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  color: var(--fg-dim);
}

.post-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  line-height: 1.3;
}

.post-desc {
  font-size: 0.85rem;
  color: var(--fg-muted);
  line-height: 1.55;
  flex: 1;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.post-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 0.5rem;
}

.post-poster {
  font-size: 0.78rem;
  color: var(--fg-dim);
}

.post-poster a { color: var(--fg-muted); text-decoration: none; }
.post-poster a:hover { color: var(--accent); }

.post-time {
  font-family: 'DM Mono', monospace;
  font-size: 0.72rem;
  color: var(--fg-dim);
}

.claimed-badge {
  font-family: 'DM Mono', monospace;
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.2rem 0.6rem;
  background: rgba(39,174,96,0.1);
  color: var(--success);
  border-radius: 2px;
}

/* ── EMPTY / LOADING ── */
.empty-state {
  text-align: center;
  padding: 5rem 2rem;
  color: var(--fg-muted);
}
.empty-state h3 { font-size: 1.1rem; color: var(--fg); margin-bottom: 0.5rem; }
.empty-icon { font-size: 3rem; margin-bottom: 1rem; }

.loading-dots {
  display: inline-flex; gap: 0.4rem; align-items: center;
}
.loading-dots span {
  width: 6px; height: 6px;
  background: var(--accent-dim);
  border-radius: 50%;
  animation: dot-bounce 1.2s infinite ease-in-out both;
}
.loading-dots span:nth-child(2) { animation-delay: 0.2s; }
.loading-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes dot-bounce {
  0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
  40% { transform: scale(1); opacity: 1; }
}

/* ── MODAL / OVERLAY ── */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  backdrop-filter: blur(4px);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.2s;
}
.overlay.open { opacity: 1; pointer-events: all; }

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: 4px;
  max-width: 520px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  position: relative;
}

.modal-title {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 1.5rem;
  color: var(--fg);
}

.modal-close {
  position: absolute;
  top: 1rem; right: 1rem;
  background: none;
  border: none;
  color: var(--fg-muted);
  font-size: 1.3rem;
  cursor: pointer;
  line-height: 1;
  padding: 0.25rem;
}
.modal-close:hover { color: var(--fg); }

/* ── FORMS ── */
.form-group {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--fg-muted);
  margin-bottom: 0.4rem;
  font-family: 'DM Mono', monospace;
}

input[type=text], input[type=email], input[type=password],
textarea, select {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  color: var(--fg);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.95rem;
  padding: 0.65rem 0.85rem;
  border-radius: 3px;
  outline: none;
  transition: border-color 0.2s;
  appearance: none;
}
input:focus, textarea:focus, select:focus { border-color: var(--accent-dim); }
input::placeholder, textarea::placeholder { color: var(--fg-dim); }

textarea { resize: vertical; min-height: 90px; }

select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M6 8L0 0h12z' fill='%238a8580'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.75rem center;
  padding-right: 2rem;
  cursor: pointer;
}

.form-error {
  font-size: 0.82rem;
  color: #e74c3c;
  margin-top: 0.4rem;
}

.form-submit { width: 100%; margin-top: 0.5rem; padding: 0.75rem; font-size: 1rem; }

/* File upload */
.file-upload-area {
  border: 1px dashed var(--border-accent);
  border-radius: 3px;
  padding: 1.5rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: var(--bg-elevated);
}
.file-upload-area:hover { border-color: var(--accent-dim); background: #1e1e1e; }
.file-upload-area.has-file { border-color: var(--accent-dim); }

.file-upload-area input[type=file] { display: none; }
.file-upload-label {
  font-size: 0.85rem;
  color: var(--fg-muted);
  cursor: pointer;
  display: block;
}
.file-upload-preview {
  max-width: 100%;
  max-height: 180px;
  border-radius: 2px;
  margin-top: 0.75rem;
  object-fit: cover;
}

/* ── TABS ── */
.tabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--fg-muted);
  font-family: 'Space Grotesk', sans-serif;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.75rem 1.25rem;
  cursor: pointer;
  transition: all 0.2s;
  margin-bottom: -1px;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }
.tab-btn:hover:not(.active) { color: var(--fg); }

/* ── PROFILE ── */
.profile-header {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
  padding-bottom: 2rem;
  border-bottom: 1px solid var(--border);
}

.profile-avatar {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--accent);
  border: 2px solid var(--border-accent);
  flex-shrink: 0;
  font-family: 'DM Mono', monospace;
}

.profile-name {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--fg);
  margin-bottom: 0.2rem;
}

.profile-since {
  font-family: 'DM Mono', monospace;
  font-size: 0.75rem;
  color: var(--fg-dim);
}

/* ── POST DETAIL MODAL ── */
.detail-img {
  width: 100%;
  max-height: 320px;
  object-fit: cover;
  border-radius: 3px;
  margin-bottom: 1.25rem;
  display: block;
}

.detail-title {
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.detail-desc {
  font-size: 0.95rem;
  color: var(--fg-muted);
  line-height: 1.65;
  margin-bottom: 1.25rem;
}

.detail-info {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  font-size: 0.82rem;
  color: var(--fg-muted);
  margin-bottom: 1.5rem;
  font-family: 'DM Mono', monospace;
}

.detail-info span { display: flex; gap: 0.35rem; align-items: center; }

.detail-actions { display: flex; gap: 0.75rem; }

/* ── TOAST ── */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.toast {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-left: 3px solid var(--accent);
  padding: 0.75rem 1rem;
  border-radius: 3px;
  font-size: 0.875rem;
  color: var(--fg);
  max-width: 320px;
  transform: translateX(100%);
  opacity: 0;
  transition: all 0.3s ease;
}
.toast.show { transform: translateX(0); opacity: 1; }
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }

/* ── LINK TABS NAV ── */
.auth-switch {
  text-align: center;
  margin-top: 1.25rem;
  font-size: 0.875rem;
  color: var(--fg-muted);
}
.auth-switch a { color: var(--accent); text-decoration: none; cursor: pointer; }
.auth-switch a:hover { color: var(--accent-bright); }

/* ── DIVIDER ── */
.divider { height: 1px; background: var(--border); margin: 1.5rem 0; }

/* ── LOAD MORE ── */
.load-more-wrap { text-align: center; margin-top: 2rem; }

/* ── RESPONSIVE ── */
@media (max-width: 600px) {
  .app-main { padding: 1.5rem 1rem 3rem; }
  .feed-grid { grid-template-columns: 1fr; }
  .modal { padding: 1.5rem; }
  .profile-header { flex-direction: column; text-align: center; }
}