:root {
  --cyan: #00b5d2;
  --blue: #4a70de;
  --gradient: linear-gradient(140deg, var(--cyan), var(--blue));
  --dark: #1a1e2e;
  --bg: #f4f6fa;
  --text: #2d3148;
  --gray: #5c5c5c;
  --light-gray: #eaecf4;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Roboto, -apple-system, system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
}

a { color: inherit; }

.login-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--dark);
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: white;
  border-radius: 20px;
  padding: 40px 36px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.login-brand {
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 8px;
}

.login-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--dark);
  margin: 0 0 24px;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--gray);
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--light-gray);
  border-radius: 10px;
  font-size: 14px;
  font-family: inherit;
}

.field input:focus {
  outline: none;
  border-color: var(--cyan);
}

button.primary {
  width: 100%;
  padding: 12px 14px;
  border: none;
  border-radius: 10px;
  background: var(--gradient);
  color: white;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  margin-top: 8px;
}

button.primary:disabled {
  opacity: 0.6;
  cursor: default;
}

.error {
  color: #b91c1c;
  font-size: 13px;
  margin-top: 10px;
  min-height: 18px;
}

/* Panel */

.topbar {
  background: var(--dark);
  color: white;
  padding: 18px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar-brand {
  font-weight: 800;
  letter-spacing: 0.02em;
}

.topbar-brand span {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.topbar-user {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
  display: flex;
  align-items: center;
  gap: 14px;
}

.topbar-user button {
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: white;
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 12px;
  cursor: pointer;
}

.panel-wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 36px 32px 80px;
}

.panel-section {
  margin-bottom: 36px;
}

.panel-section h2 {
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: var(--cyan);
  margin: 0 0 14px;
}

select.client-picker {
  padding: 8px 12px;
  border-radius: 10px;
  border: 1px solid var(--light-gray);
  font-size: 13px;
  margin-bottom: 20px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 14px;
}

.card {
  background: white;
  border: 1px solid var(--light-gray);
  border-radius: 14px;
  padding: 18px 20px;
  box-shadow: 0 2px 10px rgba(26, 30, 46, 0.05);
  text-decoration: none;
  display: block;
}

.card:hover {
  border-color: var(--cyan);
}

.card-client {
  font-size: 11px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray);
}

.card-month {
  font-size: 19px;
  font-weight: 800;
  color: var(--dark);
  margin-top: 4px;
}

.empty {
  color: var(--gray);
  font-size: 13px;
}