@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Poppins:wght@400;500;600;700;800&family=Tajawal:wght@400;500;700&display=swap');

/* --- Warm "terminal" design system (shared with tracking-performance) --- */
:root {
  --bg: #262624;
  --panel: #2f2e2b;
  --panel2: #38362f;
  --line: rgba(206,199,182,0.16);
  --line-strong: rgba(206,199,182,0.26);
  --text: #f0ece1;           /* bright warm — headings/emphasis */
  --txt: #cac5b8;            /* body */
  --muted: #948f83;
  --faint: #8a857a;
  --accent: #34d399;         /* emerald */
  --accent2: #6ee7b7;
  --gold: #e9e4d7;
  --good: #34d399;
  --bad: #f87171;
  --warn: #e9c46a;
  --glow: rgba(52,211,153,0.30);
  --sans: 'Poppins','Tajawal',sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;
}
html.light {
  --bg: #f3f1ea;
  --panel: #faf8f2;
  --panel2: #ece6d9;
  --line: rgba(64,58,48,0.18);
  --line-strong: rgba(64,58,48,0.30);
  --text: #20201d;
  --txt: #3d3a34;
  --muted: #6b6559;
  --faint: #736c60;
  --accent: #047857;
  --accent2: #059669;
  --gold: #3f3a33;
  --good: #047857;
  --bad: #b3261e;
  --warn: #b45309;
  --glow: rgba(4,120,87,0.16);
}
* { box-sizing: border-box; }
body {
  margin: 0; background: var(--bg); color: var(--txt);
  font-family: var(--sans); font-size: 15px; line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; }
b { color: var(--text); }

.topbar {
  display: flex; align-items: center; gap: 18px; padding: 12px 24px;
  background: color-mix(in srgb, var(--bg) 86%, #000); border-bottom: 1px solid var(--line);
  position: sticky; top: 0; z-index: 50; backdrop-filter: blur(8px);
}
.brand { font-weight: 800; font-size: 18px; letter-spacing: 3px; color: var(--text); text-transform: uppercase; }
.brand span { color: var(--accent); text-shadow: 0 0 14px var(--glow); }
.track-form { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.track-form input[name=username] {
  background: var(--panel2); border: 1px solid var(--line); color: var(--text);
  padding: 8px 12px; border-radius: 10px; width: 240px; font-family: var(--mono); font-size: 13px;
}
.track-form input:focus { outline: none; border-color: var(--accent); }
.track-form .chk { color: var(--muted); font-size: 13px; display: flex; gap: 4px; align-items: center; }
button, .btn {
  background: var(--accent); color: #08130d; border: 0; font-weight: 600;
  padding: 8px 14px; border-radius: 10px; cursor: pointer; font-family: var(--sans);
  transition: filter .15s;
}
button:hover, .btn:hover { filter: brightness(1.08); }
.btn.ghost, button.ghost { background: transparent; color: var(--text); border: 1px solid var(--line-strong); }
.theme-toggle { background: transparent; color: var(--muted); border: 1px solid var(--line); padding: 7px 11px; border-radius: 10px; font-size: 15px; line-height: 1; }
.theme-toggle:hover { color: var(--text); filter: none; }
main { max-width: 1100px; margin: 0 auto; padding: 24px; min-height: 70vh; }
.foot { text-align: center; color: var(--faint); font-size: 12px; padding: 24px; border-top: 1px solid var(--line); font-family: var(--mono); letter-spacing: .5px; }

/* hub */
.hub h1 { display: flex; align-items: center; gap: 12px; font-weight: 700; letter-spacing: 1px; color: var(--text); }
.count { background: var(--panel2); color: var(--accent); border-radius: 20px; padding: 2px 12px; font-size: 15px; font-family: var(--mono); }
.empty { color: var(--muted); }
.cards { display: grid; grid-template-columns: repeat(auto-fill,minmax(300px,1fr)); gap: 16px; margin-top: 16px; }
.card { display: flex; gap: 14px; background: var(--panel); border: 1px solid var(--line); border-radius: 16px; padding: 16px; transition: .15s; }
.card:hover { border-color: var(--accent); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,0,0,.18); }
.avatar { width: 56px; height: 56px; border-radius: 50%; object-fit: cover; }
.card-body { min-width: 0; }
.name { font-weight: 700; color: var(--text); }
.handle { color: var(--muted); font-size: 13px; font-family: var(--mono); }
.bio { color: var(--muted); font-size: 13px; margin: 8px 0; overflow: hidden; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; }
.stats { display: flex; flex-wrap: wrap; gap: 14px; font-size: 12px; color: var(--muted); font-family: var(--mono); }
.verified { color: var(--accent); }

/* profile */
.loading { text-align: center; padding: 60px 20px; }
.spinner { width: 44px; height: 44px; border: 4px solid var(--line); border-top-color: var(--accent); border-radius: 50%; margin: 0 auto 16px; animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.phead { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; overflow: hidden; }
.banner { height: 120px; background-size: cover; background-position: center; }
.phead-main { display: flex; gap: 18px; padding: 20px; align-items: flex-start; }
.avatar-lg { width: 84px; height: 84px; border-radius: 50%; object-fit: cover; border: 3px solid var(--panel); margin-top: -50px; background: var(--panel2); }
.phead-main h1 { margin: 0; font-size: 22px; font-weight: 700; letter-spacing: .5px; color: var(--text); }
.actions { margin-left: auto; display: flex; flex-direction: column; gap: 8px; }
.actions form { margin: 0; }

.tabs { display: flex; gap: 6px; margin: 20px 0 16px; border-bottom: 1px solid var(--line); flex-wrap: wrap; }
.tab { background: none; color: var(--muted); border-radius: 10px 10px 0 0; padding: 10px 16px; font-weight: 600; letter-spacing: .5px; }
.tab.active { color: var(--text); border-bottom: 2px solid var(--accent); }
.panel { display: none; }
.panel.active { display: block; }

.grid { display: grid; grid-template-columns: repeat(auto-fit,minmax(160px,1fr)); gap: 14px; }
.stat-card { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 16px; }
.stat-card .k { color: var(--muted); font-size: 11px; text-transform: uppercase; letter-spacing: 1.5px; }
.stat-card .v { font-size: 26px; font-weight: 700; color: var(--accent); margin-top: 6px; font-family: var(--mono); text-shadow: 0 0 16px var(--glow); }

.section-title { margin: 24px 0 10px; font-size: 12px; color: var(--muted); text-transform: uppercase; letter-spacing: 2px; font-family: var(--mono); }
.bars { display: flex; flex-direction: column; gap: 6px; }
.bar-row { display: grid; grid-template-columns: 130px 1fr 50px; gap: 10px; align-items: center; font-size: 13px; }
.bar-row .label { color: var(--muted); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-family: var(--mono); }
.bar-track { background: var(--panel2); border-radius: 6px; height: 16px; overflow: hidden; }
.bar-fill { background: linear-gradient(90deg,var(--accent),var(--accent2)); height: 100%; }
.bar-row .num { text-align: right; color: var(--text); font-family: var(--mono); }

.hours { display: flex; align-items: flex-end; gap: 3px; height: 90px; margin-top: 8px; }
.hours .h { flex: 1; background: var(--accent); border-radius: 3px 3px 0 0; min-height: 2px; opacity: .82; }
.hours-axis { display: flex; justify-content: space-between; color: var(--faint); font-size: 10px; margin-top: 4px; font-family: var(--mono); }

.tweet { background: var(--panel); border: 1px solid var(--line); border-radius: 14px; padding: 14px; margin-bottom: 10px; }
.tweet .meta { display: flex; gap: 16px; color: var(--muted); font-size: 12px; margin-top: 8px; font-family: var(--mono); }
.tag { display: inline-block; background: var(--panel2); color: var(--accent); border-radius: 16px; padding: 4px 10px; margin: 3px; font-size: 13px; font-family: var(--mono); }
.tag .n { color: var(--muted); }

.net-wrap { background: var(--panel); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
#graph { width: 100%; height: 460px; display: block; }
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 16px; }
@media (max-width: 720px){ .two-col { grid-template-columns: 1fr; } .phead-main { flex-direction: column; } .actions { margin-left: 0; flex-direction: row; } }
.pill { display: inline-flex; gap: 6px; align-items: center; background: var(--panel2); border-radius: 20px; padding: 4px 10px; font-size: 12px; font-family: var(--mono); }
.sent-bar { display: flex; height: 22px; border-radius: 8px; overflow: hidden; margin-top: 8px; }
.sent-bar .pos { background: var(--good); } .sent-bar .neu { background: var(--panel2); } .sent-bar .neg { background: var(--bad); }
.error { color: var(--bad); }

/* auth */
.logout { color: var(--muted); font-size: 13px; border: 1px solid var(--line); padding: 7px 12px; border-radius: 10px; }
.logout:hover { color: var(--text); border-color: var(--accent); }
.login-body { display: flex; align-items: center; justify-content: center; min-height: 100vh; margin: 0;
  background: radial-gradient(1100px 560px at 50% -10%, color-mix(in srgb, var(--accent) 10%, var(--bg)), var(--bg)); }
.login-card { background: var(--panel); border: 1px solid var(--line); border-radius: 18px; padding: 34px 30px;
  width: 340px; box-shadow: 0 24px 70px rgba(0,0,0,.35); }
.login-brand { font-weight: 800; font-size: 22px; letter-spacing: 4px; text-align: center; color: var(--text); text-transform: uppercase; }
.login-brand span { color: var(--accent); text-shadow: 0 0 14px var(--glow); }
.login-sub { text-align: center; color: var(--muted); font-size: 12px; margin: 6px 0 20px; font-family: var(--mono); letter-spacing: 1px; text-transform: uppercase; }
.login-form { display: flex; flex-direction: column; gap: 14px; }
.login-form label { display: flex; flex-direction: column; gap: 6px; font-size: 13px; color: var(--muted); }
.login-form input { background: var(--panel2); border: 1px solid var(--line); color: var(--text);
  padding: 10px 12px; border-radius: 10px; font-size: 15px; font-family: var(--mono); }
.login-form input:focus { outline: none; border-color: var(--accent); }
.login-form button { margin-top: 6px; padding: 11px; font-size: 15px; letter-spacing: 1px; }
.login-error { background: color-mix(in srgb, var(--bad) 14%, transparent); border: 1px solid var(--bad); color: var(--bad);
  padding: 10px 12px; border-radius: 10px; font-size: 13px; margin-bottom: 16px; }