* {
  box-sizing: border-box;
}

:root {
  color-scheme: light;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: #f8fafc;
  color: #0f172a;
  font-family: "SF Pro Display", "SF Pro Text", Inter, "Helvetica Neue", system-ui, sans-serif;
}

.terminal-screen {
  display: none;
  min-height: 100vh;
  place-items: center;
  padding: clamp(1rem, 4vw, 2.25rem);
  background:
    radial-gradient(circle at top, rgba(255, 255, 255, 0.92), transparent 46%),
    linear-gradient(180deg, #f8fafc 0%, #e5ecf6 100%);
  color: #0f172a;
}

.terminal-screen.active {
  display: grid;
}

.terminal-container {
  display: grid;
  place-items: center;
  width: min(100%, 30rem);
}

.terminal-panel.login-panel {
  position: relative;
  display: grid;
  gap: 1.25rem;
  width: min(100%, 30rem);
  padding: clamp(1.5rem, 4vw, 2.35rem);
  text-align: center;
  overflow: hidden;
  border: 1px solid rgba(15, 23, 42, 0.08);
  border-radius: clamp(1.25rem, 2vw, 1.95rem);
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.96), rgba(247, 250, 255, 0.9));
  box-shadow:
    0 36px 90px rgba(15, 23, 42, 0.14),
    inset 0 1px 0 rgba(255, 255, 255, 0.72);
  backdrop-filter: blur(24px) saturate(125%);
}

.terminal-panel.login-panel::before {
  position: absolute;
  inset: 0 0 auto;
  height: 2px;
  content: "";
  background: linear-gradient(90deg, transparent, rgba(37, 99, 235, 0.65), rgba(255, 255, 255, 0.8), rgba(37, 99, 235, 0.65), transparent);
}

.terminal-title {
  margin: 0;
  color: #0f172a;
  font-size: clamp(2.15rem, 1.55rem + 2.2vw, 3.15rem);
  font-weight: 650;
  letter-spacing: -0.04em;
  line-height: 0.96;
}

.terminal-screen .eyebrow,
.terminal-subtitle {
  margin: 0;
  color: #475569;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
}

.terminal-input-field {
  padding: 0 18px;
  text-align: center;
  letter-spacing: 0.08em;
}

.terminal-input-field.input {
  background: rgba(255, 255, 255, 0.94);
  border-color: rgba(15, 23, 42, 0.12);
  color: #0f172a;
  box-shadow: 0 1px 2px rgba(15, 23, 42, 0.05);
}

.terminal-input-field.input::placeholder {
  color: #94a3b8;
}

.terminal-input-field.input:focus {
  border-color: rgba(37, 99, 235, 0.58);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.12);
}

.login-controls,
.terminal-actions {
  display: grid;
  gap: 1.25rem;
}

.login-btn.btn {
  width: 100%;
  min-height: 48px;
  border: 1px solid rgba(37, 99, 235, 0.45);
  border-radius: 999px;
  background: linear-gradient(180deg, #2563eb, #1d4ed8);
  color: #ffffff;
  cursor: pointer;
  font: inherit;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: lowercase;
  box-shadow: 0 18px 36px rgba(37, 99, 235, 0.22);
}

.login-btn.btn:hover:not(:disabled) {
  transform: translateY(-1px);
  border-color: rgba(59, 130, 246, 0.72);
}

.login-btn.btn:disabled {
  cursor: wait;
  opacity: 0.65;
}