:root {
  --bg: #0a0a0a;
  --bg-card: #161616;
  --bg-card-hover: #1f1f1f;
  --border: #2a2a2a;
  --green: #22e06b;
  --green-dark: #17a851;
  --text: #f2f2f2;
  --text-dim: #a0a0a0;
  --danger: #ff4d4f;
  --radius: 10px;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: 'Segoe UI', Arial, sans-serif;
  min-height: 100vh;
}

a { color: var(--green); text-decoration: none; }
a:hover { text-decoration: underline; }

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  background: #000;
  border-bottom: 1px solid var(--border);
  flex-wrap: wrap;
  gap: 10px;
}

.brand {
  font-weight: 800;
  letter-spacing: 2px;
  text-transform: uppercase;
  font-size: 20px;
  color: var(--text);
}
.brand span { color: var(--green); }

.topbar-user {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14px;
  color: var(--text-dim);
}

.container {
  max-width: 900px;
  margin: 0 auto;
  padding: 24px 16px 60px;
}

h1, h2, h3 {
  text-transform: uppercase;
  letter-spacing: 1px;
  font-weight: 800;
}

h1 { font-size: 24px; margin: 0 0 20px; }
h2 { font-size: 19px; margin: 0 0 16px; }
h3 { font-size: 16px; margin: 0 0 8px; }

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 14px;
}

.workout-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  transition: border-color .15s, background .15s;
  display: block;
}
.workout-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--green-dark);
  text-decoration: none;
}
.workout-card .badge {
  display: inline-block;
  background: rgba(34,224,107,.12);
  color: var(--green);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .5px;
  padding: 3px 8px;
  border-radius: 4px;
  margin-bottom: 8px;
}
.workout-card p {
  color: var(--text-dim);
  font-size: 13px;
  margin: 6px 0 0;
  line-height: 1.5;
}
.workout-card .wname {
  font-size: 18px;
  font-weight: 800;
  text-transform: uppercase;
  color: var(--text);
}

label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
  color: var(--text-dim);
  margin-bottom: 6px;
  margin-top: 14px;
}

input[type=text], input[type=password], input[type=date], select, textarea {
  width: 100%;
  padding: 12px 14px;
  background: #0e0e0e;
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text);
  font-size: 15px;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--green);
}

.btn {
  display: inline-block;
  background: var(--green);
  color: #05170c;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .5px;
  border: none;
  border-radius: 8px;
  padding: 13px 22px;
  font-size: 14px;
  cursor: pointer;
  margin-top: 18px;
}
.btn:hover { background: var(--green-dark); text-decoration: none; }
.btn.secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn.secondary:hover { border-color: var(--green); }
.btn.danger { background: var(--danger); color: #fff; }
.btn.small { padding: 7px 12px; font-size: 12px; margin-top: 0; }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.login-card {
  width: 100%;
  max-width: 360px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 26px;
  text-align: center;
}
.login-card .brand { font-size: 26px; margin-bottom: 4px; }
.login-card .subtitle {
  color: var(--text-dim);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 24px;
}

.error {
  background: rgba(255,77,79,.12);
  border: 1px solid var(--danger);
  color: #ff8f90;
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-top: 16px;
  text-align: left;
}
.success {
  background: rgba(34,224,107,.12);
  border: 1px solid var(--green);
  color: var(--green);
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 13px;
  margin-bottom: 16px;
}

table { width: 100%; border-collapse: collapse; font-size: 14px; }
th, td { text-align: left; padding: 10px 8px; border-bottom: 1px solid var(--border); }
th { color: var(--text-dim); text-transform: uppercase; font-size: 11px; letter-spacing: .5px; }

.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px,1fr)); gap: 14px; margin-bottom: 20px; }
.stat { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 18px; text-align: center; }
.stat .num { font-size: 28px; font-weight: 800; color: var(--green); }
.stat .lbl { font-size: 12px; color: var(--text-dim); text-transform: uppercase; letter-spacing: .5px; margin-top: 4px; }

.tabs { display: flex; gap: 8px; margin-bottom: 20px; flex-wrap: wrap; }
.tabs a {
  padding: 8px 14px;
  border-radius: 20px;
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
}
.tabs a.active { background: var(--green); color: #05170c; border-color: var(--green); }
.tabs a:hover { text-decoration: none; border-color: var(--green); }

.empty { color: var(--text-dim); font-size: 14px; padding: 20px 0; text-align: center; }

.row-actions { display: flex; gap: 8px; }

.back-link { display: inline-block; margin-bottom: 16px; font-size: 13px; }

@media (max-width: 480px) {
  .container { padding: 16px 12px 50px; }
  .grid { grid-template-columns: 1fr; }
}