:root {
  /* Base */
  --bg: #0a0d12;
  --bg-elevated: #12171f;
  --bg-header: #141b24;
  --fg: #e6eaef;
  --fg-dim: #8892a0;
  --fg-muted: #5c6573;

  /* Accent & semantic */
  --accent: #5eb3f6;
  --accent-dim: rgba(94, 179, 246, 0.12);
  --cursor: #f0a030;
  --error: #f07178;
  --success: #7ee787;
  --welcome: #7dd3fc;
  --border: rgba(48, 58, 72, 0.95);
  --border-focus: rgba(94, 179, 246, 0.45);

  /* Spacing & shape */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --radius: 14px;
  --radius-sm: 8px;

  /* Motion */
  --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
  --transition-fast: 0.15s var(--ease);
  --transition-normal: 0.25s var(--ease);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--fg);
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  background-image:
    radial-gradient(
      ellipse 120% 80% at 50% -20%,
      rgba(94, 179, 246, 0.06),
      transparent
    ),
    radial-gradient(
      ellipse 80% 50% at 100% 50%,
      rgba(240, 160, 48, 0.03),
      transparent
    );
}

.app {
  display: flex;
  flex-direction: column;
  height: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: var(--space-lg);
}

.terminal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-md) var(--space-lg);
  background: var(--bg-header);
  border: 1px solid var(--border);
  border-bottom: 1px solid rgba(48, 58, 72, 0.6);
  border-radius: var(--radius) var(--radius) 0 0;
  flex-shrink: 0;
  min-height: 3.25rem;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

.terminal-title {
  font-weight: 600;
  color: var(--fg);
  font-size: 0.925rem;
  letter-spacing: 0.04em;
}

.terminal-title::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 0.5rem;
  border-radius: 50%;
  background: var(--cursor);
  box-shadow: 0 0 8px var(--cursor);
  vertical-align: middle;
}

.terminal-hint {
  font-size: 0.7rem;
  color: var(--fg-dim);
  letter-spacing: 0.02em;
  font-weight: 400;
}

#terminal-container {
  flex: 1 1 0;
  min-height: 0;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  overflow-y: auto;
  padding: var(--space-md) var(--space-xl);
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-top: none;
  border-radius: 0 0 var(--radius) var(--radius);
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(0, 0, 0, 0.1),
    inset 0 1px 0 rgba(255, 255, 255, 0.02);
  transition: box-shadow var(--transition-normal);
  box-sizing: border-box;
}

#terminal-container:focus-within,
#terminal-container:focus-visible {
  box-shadow:
    0 4px 24px rgba(0, 0, 0, 0.25),
    0 0 0 1px rgba(0, 0, 0, 0.1),
    0 0 0 2px var(--border-focus),
    inset 0 1px 0 rgba(255, 255, 255, 0.02);
}

#terminal-container:focus {
  outline: none;
}

#terminal-container .xterm {
  flex: 0 0 auto;
  width: 100%;
  padding: 0;
  margin: 0;
  min-height: min-content;
  position: relative;
  display: block;
  box-sizing: border-box;
}

#terminal-container .xterm .xterm-screen {
  box-sizing: border-box !important;
  padding-bottom: 3em !important;
  font-family: 'JetBrains Mono', 'Fira Code', Consolas, monospace !important;
}

#terminal-container::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
#terminal-container::-webkit-scrollbar-track {
  background: transparent;
}
#terminal-container::-webkit-scrollbar-thumb {
  background: var(--border);
  border-radius: 4px;
}
#terminal-container::-webkit-scrollbar-thumb:hover {
  background: var(--fg-muted);
}
#terminal-container::-webkit-scrollbar-corner {
  background: var(--bg-elevated);
}

#terminal-container .xterm-viewport {
  background: transparent !important;
  border-radius: var(--radius-sm);
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
#terminal-container .xterm-viewport::-webkit-scrollbar {
  display: none;
  width: 0;
  height: 0;
}

@media (max-width: 640px) {
  .terminal-hint {
    display: none;
  }
  .app {
    padding: var(--space-sm);
  }
  #terminal-container {
    padding: var(--space-md) var(--space-lg);
  }
  .terminal-title::before {
    width: 5px;
    height: 5px;
    margin-right: 0.4rem;
  }
}