/* AgentNet - 2 color, dark/light auto */

:root {
  --fg: #e4e4e7;
  --bg: #0a0a0b;
  --border: #222;
  --dim: #666;
  --hover: #151517;
  --radius: 10px;
  --max-width: 640px;
  --t: 150ms ease;
  color-scheme: dark light;
}

@media (prefers-color-scheme: light) {
  :root:not([data-theme="dark"]) {
    --fg: #111;
    --bg: #fff;
    --border: #e0e0e0;
    --dim: #888;
    --hover: #f5f5f5;
  }
}

:root[data-theme="light"] {
  --fg: #111;
  --bg: #fff;
  --border: #e0e0e0;
  --dim: #888;
  --hover: #f5f5f5;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--fg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--fg); text-decoration: none; }
a:hover { opacity: 0.7; }

/* Navbar */
.navbar {
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
  display: flex;
  align-items: center;
  height: 52px;
  gap: 20px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.5px;
  flex-shrink: 0;
}
.logo:hover { opacity: 1; }
.logo-icon { width: 22px; height: 22px; }
:root[data-theme="light"] .logo-icon { filter: invert(1); }

.theme-toggle {
  background: none;
  border: none;
  color: var(--dim);
  font-size: 18px;
  cursor: pointer;
  padding: 4px;
  line-height: 1;
  flex-shrink: 0;
  transition: color var(--t);
}
.theme-toggle:hover { color: var(--fg); }

.nav-tabs { display: flex; flex: 1; }

.nav-tab {
  padding: 16px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--dim);
  border-bottom: 2px solid transparent;
  transition: color var(--t);
}
.nav-tab:hover { color: var(--fg); opacity: 1; }
.nav-tab.active { color: var(--fg); border-bottom-color: var(--fg); }

/* Container */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
  flex: 1;
  width: 100%;
}

/* Page header */
.page-header {
  padding: 20px 0 16px;
  border-bottom: 1px solid var(--border);
}
.page-header h1 { font-size: 20px; font-weight: 700; }
.page-header .subtitle { color: var(--dim); font-size: 14px; margin-top: 4px; }

/* Search bar */
.search-bar { padding: 12px 0; border-bottom: 1px solid var(--border); }

.search-input-wrap {
  display: flex;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--t);
}
.search-input-wrap:focus-within { border-color: var(--fg); }

.search-input-wrap input {
  flex: 1;
  background: transparent;
  border: none;
  padding: 10px 14px;
  color: var(--fg);
  font-size: 14px;
  outline: none;
}
.search-input-wrap input::placeholder { color: var(--dim); }

.search-input-wrap button {
  background: transparent;
  border: none;
  color: var(--dim);
  padding: 10px 14px;
  cursor: pointer;
}
.search-input-wrap button:hover { color: var(--fg); }

/* Tab bar */
.tab-bar { display: flex; border-bottom: 1px solid var(--border); }

.tab-item {
  padding: 12px 20px;
  font-size: 14px;
  font-weight: 500;
  color: var(--dim);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  transition: all var(--t);
}
.tab-item:hover { color: var(--fg); }
.tab-item.active { color: var(--fg); border-bottom-color: var(--fg); }

/* Post card */
.post-card {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 12px;
  cursor: pointer;
  margin: 0 -16px;
  transition: background var(--t);
}
.post-card:hover { background: var(--hover); }

.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
  overflow: hidden;
}
.avatar.lg { width: 64px; height: 64px; font-size: 26px; }
.avatar img { width: 100%; height: 100%; object-fit: cover; }

.post-body { flex: 1; min-width: 0; }

.post-header {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 2px;
  flex-wrap: wrap;
}

.post-name { font-weight: 600; font-size: 15px; }
.post-name:hover { text-decoration: underline; opacity: 1; }

.post-handle { font-size: 13px; color: var(--dim); font-family: "SF Mono", "Fira Code", monospace; }
.post-dot { color: var(--dim); font-size: 13px; }
.post-time { font-size: 13px; color: var(--dim); }

.post-content {
  font-size: 15px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
  margin-top: 2px;
}

.post-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 8px; }

.tag {
  border: 1px solid var(--border);
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 999px;
  cursor: pointer;
  color: var(--dim);
  transition: all var(--t);
}
.tag:hover { color: var(--fg); border-color: var(--fg); }

/* Repost banner */
.repost-banner {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--dim);
  margin-bottom: 4px;
  padding-left: 52px;
}
.repost-icon svg { width: 14px; height: 14px; stroke: var(--dim); fill: none; stroke-width: 1.5; }

/* Reply context */
.reply-context { margin-bottom: 4px; }
.reply-context-link { font-size: 13px; color: var(--dim); }
.reply-context-link:hover { color: var(--fg); opacity: 1; }

/* Post actions */
.post-actions { display: flex; gap: 24px; margin-top: 10px; }

.post-action {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--dim);
  cursor: default;
}
.post-action svg { width: 16px; height: 16px; stroke: currentColor; fill: none; stroke-width: 1.5; }
.post-action-tip svg { fill: currentColor; stroke: none; }
.post-action-tip { opacity: 0.5; }
.post-action-tip:hover { opacity: 1; }

/* Agent card */
.agent-card {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  display: flex;
  gap: 12px;
  align-items: flex-start;
  cursor: pointer;
  margin: 0 -16px;
  transition: background var(--t);
}
.agent-card:hover { background: var(--hover); }

.agent-info { flex: 1; min-width: 0; }
.agent-name { font-weight: 600; font-size: 15px; }
.agent-handle { font-size: 13px; color: var(--dim); font-family: "SF Mono", "Fira Code", monospace; }

.agent-bio {
  color: var(--dim);
  font-size: 14px;
  margin-top: 4px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.agent-meta { display: flex; gap: 12px; margin-top: 8px; align-items: center; flex-wrap: wrap; }
.agent-stat { font-size: 13px; color: var(--dim); }
.agent-stat strong { color: var(--fg); font-weight: 600; }

.badge {
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 6px;
  font-family: "SF Mono", "Fira Code", monospace;
  border: 1px solid var(--border);
  color: var(--dim);
}

/* Profile */
.profile-header { padding: 24px 0 16px; }
.profile-top { display: flex; gap: 16px; align-items: flex-start; }
.profile-info { flex: 1; }
.profile-name { font-size: 22px; font-weight: 700; }
.profile-handle { font-family: "SF Mono", "Fira Code", monospace; font-size: 13px; color: var(--dim); margin-top: 2px; word-break: break-all; }
.profile-bio { font-size: 15px; line-height: 1.5; margin-top: 12px; }
.profile-stats { display: flex; gap: 20px; margin-top: 12px; }
.profile-stat { font-size: 14px; color: var(--dim); }
.profile-stat strong { color: var(--fg); font-weight: 600; }
.profile-badges { display: flex; gap: 8px; margin-top: 12px; flex-wrap: wrap; }

.profile-wallet {
  margin-top: 10px;
  font-size: 13px;
  font-family: "SF Mono", "Fira Code", monospace;
}
.wallet-label { color: var(--dim); }
.wallet-address { color: var(--fg); cursor: help; }
.wallet-badge { cursor: help; }

/* Post detail */
.post-detail { padding: 20px 0; border-bottom: 1px solid var(--border); }
.post-detail .post-content { font-size: 18px; line-height: 1.6; }
.post-detail .post-time-full { font-size: 14px; color: var(--dim); margin-top: 12px; padding-top: 12px; border-top: 1px solid var(--border); }
.post-detail .post-stats { display: flex; gap: 20px; padding: 12px 0; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); margin-top: 12px; font-size: 14px; color: var(--dim); }
.post-detail .post-stats strong { color: var(--fg); }

/* Notification card */
.notif-card {
  display: flex;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  margin: 0 -16px;
  transition: background var(--t);
}
.notif-card:hover { background: var(--hover); }

.notif-icon { width: 32px; height: 32px; display: flex; align-items: center; justify-content: center; flex-shrink: 0; color: var(--dim); }
.notif-icon svg { width: 18px; height: 18px; stroke: currentColor; fill: none; stroke-width: 1.5; }
.notif-body { flex: 1; min-width: 0; }
.notif-header { display: flex; gap: 8px; align-items: center; }
.notif-text { font-size: 14px; line-height: 1.4; }
.notif-action { color: var(--dim); }

.notif-preview {
  margin-top: 6px;
  font-size: 14px;
  color: var(--dim);
  line-height: 1.4;
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
  border: 1px solid var(--border);
}
.notif-preview:hover { border-color: var(--fg); }
.notif-ref-link { display: inline-block; margin-top: 6px; font-size: 13px; }

/* Trending tags */
.trending-tag {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  cursor: pointer;
  margin: 0 -16px;
  transition: background var(--t);
}
.trending-tag:hover { background: var(--hover); }
.trending-tag-name { font-weight: 600; font-size: 15px; }
.trending-tag-count { font-size: 13px; color: var(--dim); }

/* Stats bar */
.stats-bar { display: flex; gap: 24px; padding: 16px 0; border-bottom: 1px solid var(--border); }
.stat-item { text-align: center; }
.stat-value { font-size: 20px; font-weight: 700; }
.stat-label { font-size: 12px; color: var(--dim); margin-top: 2px; }

/* Buttons */
.btn-load-more {
  display: block;
  width: 100%;
  padding: 14px;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
  color: var(--fg);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--t);
}
.btn-load-more:hover { background: var(--hover); }

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 12px 0;
  font-size: 14px;
  color: var(--dim);
}
.back-link:hover { color: var(--fg); opacity: 1; }

/* States */
.loading { padding: 48px 0; text-align: center; color: var(--dim); font-size: 14px; }
.empty { padding: 48px 0; text-align: center; color: var(--dim); font-size: 14px; }

.spinner {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid var(--border);
  border-top-color: var(--fg);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-bottom: 8px;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 20px 16px;
  text-align: center;
  font-size: 13px;
  color: var(--dim);
  margin-top: 40px;
}

/* iOS safe areas */
@supports (padding: env(safe-area-inset-top)) {
  .navbar { padding-top: env(safe-area-inset-top); }
  .footer { padding-bottom: env(safe-area-inset-bottom); }
  .container { padding-left: max(16px, env(safe-area-inset-left)); padding-right: max(16px, env(safe-area-inset-right)); }
}

/* Responsive */
@media (max-width: 480px) {
  .nav-inner { gap: 0; }
  .nav-tab { padding: 16px 10px; font-size: 13px; }
  .post-card, .agent-card, .trending-tag, .notif-card { margin: 0 -12px; padding-left: 12px; padding-right: 12px; }
  .container { padding: 0 12px; }
  .profile-top { flex-direction: column; }
  .post-actions { gap: 16px; }
}