cipher-workshop/web/style/main.scss

// --- Rosé Pine Palette Definitions ---

// Dark (Main)
$d-base: #191724;
$d-surface: #1f1d2e;
$d-overlay: #26233a;
$d-text: #e0def4;
$d-subtle: #908caa;
$d-love: #eb6f92; // Red/Error
$d-rose: #ebbcba; // Pink/Primary
$d-pine: #31748f; // Blue-Green
$d-iris: #c4a7e7; // Purple
$d-hl-low: #21202e;
$d-hl-high: #524f67;

// Light (Dawn)
$l-base: #faf4ed;
$l-surface: #fffaf3;
$l-overlay: #f2e9e1;
$l-text: #575279;
$l-subtle: #797593;
$l-love: #b4637a;
$l-rose: #d7827e;
$l-pine: #286983;
$l-iris: #907aa9;
$l-hl-low: #f4ede8;
$l-hl-high: #cecacd;

:root,
body.dark-theme {
  // Default to Dark Mode
  --bg-body: #{$d-base};
  --bg-card: #{$d-surface};
  --bg-input: #{$d-overlay};
  --bg-highlight: #{$d-hl-low};

  --text-main: #{$d-text};
  --text-muted: #{$d-subtle};

  --primary: #{$d-rose};
  --secondary: #{$d-rose};
  --accent: #{$d-pine};
  --error: #{$d-love};

  --border: #{$d-hl-high};
  --focus-ring: #{rgba($d-rose, 0.3)};
}

body.light-theme {
  --bg-body: #{$l-base};
  --bg-card: #{$l-surface};
  --bg-input: #{$l-overlay};
  --bg-highlight: #{$l-hl-low};

  --text-main: #{$l-text};
  --text-muted: #{$l-subtle};

  --primary: #{$l-rose};
  --secondary: #{$l-rose};
  --accent: #{$l-pine};
  --error: #{$l-love};

  --border: #{$l-hl-high};
  --focus-ring: #{rgba($l-rose, 0.3)};
}

body {
  font-family: "Inter", "Segoe UI", sans-serif;
  background-color: var(--bg-body);
  color: var(--text-main);
  margin: 0;
  transition:
    background-color 0.3s,
    color 0.3s;
}

.app-containter {
  max-width: 800px;
  margin: 0 auto;
  min-height: 100vh;
}

.main-nav {
  background-color: var(--bg-card);
  padding: 1rem 2rem;
  border-bottom: 2px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;

  ul {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    gap: 20px;
  }

  a {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 600;
    transition: color 0.2s;

    &:hover,
    &[aria-current="page"] {
      color: var(--primary);
    }
  }
}

.theme-toggle {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text-main);
  padding: 5px 10px;
  border-radius: 6px;
  cursor: pointer;
  font-size: 0.9em;
  transition: all 0.2s;

  &:hover {
    border-color: var(--primary);
    color: var(--primary);
  }
}

main {
  padding: 2rem;
}

.cipher-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);

  h2 {
    margin-top: 0;
    color: var(--secondary);
    border-bottom: 1px solid var(--border);
    padding-bottom: 15px;
    margin-bottom: 25px;
  }
}

.form-group {
  margin-bottom: 1.5rem;

  label {
    display: block;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-muted);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05rem;
  }

  input[type="text"],
  textarea {
    width: 100%;
    padding: 12px;
    background-color: var(--bg-input);
    color: var(--text-main);
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    box-sizing: border-box;
    font-family: monospace;
  }

  &:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--focus-ring);
  }

  &::placeholder {
    color: var(--text-muted);
    opacity: 0.5;
  }
}

.radio-group {
  display: flex;
  gap: 20px;
  background: var(--bg-input);
  padding: 10px;
  border-radius: 8px;
  width: fit-content;

  label {
    margin: 0;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-main);
    text-transform: none;
  }

  input[type="radio"] {
    accent-color: var(--primary);
  }
}

.btn-primary {
  background-color: var(--primary);
  color: var(--bg-body);
  padding: 12px 24px;
  border: none;
  border-radius: 6px;
  font-size: 1rem;
  font-weight: bold;
  cursor: pointer;
  width: 100%;
  transition: opacity 0.2s;

  &:hover {
    opacity: 0.9;
  }
}

.error-box {
  margin-top: 1.5rem;
  padding: 1rem;
  background-color: rgba($d-love, 0.1);
  color: var(--error);
  border: 1px solid var(--error);
  border-radius: 6px;
}

.result-box {
  margin-top: 1.5rem;
  background: var(--bg-highlight);
  border-radius: 8px;
  overflow: hidden;

  strong {
    display: block;
    padding: 8px 12px;
    background: rgba(0, 0, 0, 0.1);
    color: var(--text-muted);
    font-size: 0.85rem;
  }

  code {
    display: block;
    padding: 15px;
    word-break: break-all;
    font-family: "Consolas", "Monaco", monospace;
    color: var(--accent);
  }
}