/* ════════════════════════════════════════════════════
   ACCURACY CONSULTING — Tool Pages
   Deep Navy · Electric Blue · Cyan
   ════════════════════════════════════════════════════ */

:root {
  --bg: #070c1e;
  --bg-alt: #0c1228;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-soft: rgba(255, 255, 255, 0.06);
  --ink: #e8eaf5;
  --muted: #7a8299;
  --accent: #4d94ff;
  --accent-hover: #06b6d4;
  --accent-subtle: rgba(77, 148, 255, 0.08);
  --line: rgba(255, 255, 255, 0.08);
  --line-accent: rgba(77, 148, 255, 0.2);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --radius: 16px;
  --radius-sm: 8px;
  --ease: cubic-bezier(0.4, 0, 0.2, 1);
  --grad: linear-gradient(135deg, #2563eb, #06b6d4);
  --font-body: "Manrope", system-ui, sans-serif;
  --font-heading: "Fraunces", Georgia, serif;
}

* { box-sizing: border-box; }
html, body { background: var(--bg); color: var(--ink); }

body {
  margin: 0;
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 400ms var(--ease), color 400ms var(--ease);
}

body:not(.night-mode) {
  --bg: #f0f5ff;
  --bg-alt: #e4eeff;
  --surface: rgba(255, 255, 255, 0.85);
  --surface-soft: rgba(255, 255, 255, 0.6);
  --ink: #0a1020;
  --muted: #475577;
  --accent: #1d4ed8;
  --accent-hover: #0284c7;
  --accent-subtle: rgba(29, 78, 216, 0.07);
  --line: rgba(0, 0, 0, 0.08);
  --line-accent: rgba(29, 78, 216, 0.18);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.07);
  --grad: linear-gradient(135deg, #1d4ed8, #0284c7);
  background: #f0f5ff; color: #0a1020;
}
html:not(.night-mode) { background: #f0f5ff; color: #0a1020; }

body.night-mode {
  --bg: #070c1e; --bg-alt: #0c1228;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-soft: rgba(255, 255, 255, 0.06);
  --ink: #e8eaf5; --muted: #7a8299;
  --accent: #4d94ff; --accent-hover: #06b6d4;
  --accent-subtle: rgba(77, 148, 255, 0.08);
  --line: rgba(255, 255, 255, 0.08);
  --line-accent: rgba(77, 148, 255, 0.2);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
  --grad: linear-gradient(135deg, #2563eb, #06b6d4);
  background: #070c1e;
}
html.night-mode { background: #070c1e; color: #e8eaf5; }

.container { width: min(950px, 92vw); margin: 0 auto; }

.tool-header {
  border-bottom: 1px solid var(--line);
  background: var(--bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky; top: 0; z-index: 10;
}
.tool-header-inner {
  min-height: 68px;
  display: flex; align-items: center; justify-content: space-between; gap: 0.8rem;
}
.tool-header a {
  color: var(--accent);
  text-decoration: none; font-weight: 700;
  font-size: 0.88rem;
  transition: opacity 150ms var(--ease);
}
.tool-header a:hover { opacity: 0.8; }
.tool-logo { height: 36px; width: auto; }

.tool-controls { display: flex; gap: 0.4rem; }
.control-btn {
  border: 1px solid var(--line);
  background: var(--surface); color: var(--muted);
  border-radius: 999px; padding: 0.4rem 0.7rem;
  font-size: 0.75rem; font-weight: 700; letter-spacing: 0.04em;
  cursor: pointer; transition: all 150ms var(--ease);
}
.control-btn:hover { border-color: var(--accent); color: var(--ink); }
.control-btn[aria-pressed="true"] {
  background: var(--grad); color: #fff;
  border-color: transparent; font-weight: 800;
}

.tool-main { padding: 1.5rem 0 2.5rem; }

h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.5rem, 3.5vw, 2.2rem);
  font-family: var(--font-heading);
  letter-spacing: -0.01em;
}
.lead { margin: 0 0 1.25rem; color: var(--muted); font-size: 1rem; }

.card {
  background: var(--surface);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem; margin-bottom: 1rem;
  position: relative; overflow: hidden;
  transition: border-color 300ms var(--ease);
}
.card:hover { border-color: var(--line-accent); }
.card::before {
  content: "";
  position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--grad);
}
.card h2 {
  margin: 0 0 0.6rem;
  font-size: 1.05rem;
  font-family: var(--font-heading);
  background: var(--grad);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}

.tool-row { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1rem; }
.tool-row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }

label {
  display: grid; gap: 0.3rem;
  font-weight: 700; font-size: 0.85rem;
  color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.04em;
}

input, select, button, textarea { font: inherit; }

input, select, textarea {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.6rem 0.8rem;
  background: var(--bg-alt); color: var(--ink);
  outline: none;
  transition: border-color 150ms var(--ease), box-shadow 150ms var(--ease);
}
input:focus, select:focus, textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-subtle);
}

button {
  border: 1px solid var(--line);
  background: var(--surface); color: var(--muted);
  border-radius: 999px; padding: 0.5rem 0.9rem;
  font-weight: 700; font-size: 0.88rem;
  cursor: pointer; transition: all 150ms var(--ease);
}
button:hover { border-color: var(--accent); color: var(--ink); }

button.primary {
  background: var(--grad);
  border-color: transparent; color: #fff;
  font-weight: 800;
  box-shadow: 0 4px 16px rgba(77, 148, 255, 0.25);
}
button.primary:hover { box-shadow: 0 6px 24px rgba(77, 148, 255, 0.4); filter: brightness(1.08); }

.actions { display: flex; gap: 0.5rem; flex-wrap: wrap; margin-bottom: 0.75rem; }

.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.5rem; }
.checklist label {
  display: flex; align-items: center; gap: 0.6rem;
  padding: 0.55rem 0.7rem;
  border-radius: var(--radius-sm);
  background: var(--surface-soft);
  border: 1px solid var(--line);
  text-transform: none; letter-spacing: 0;
  font-weight: 600; font-size: 0.92rem; color: var(--ink);
  transition: border-color 150ms var(--ease), background 150ms var(--ease);
}
.checklist label:hover { border-color: var(--line-accent); }
.checklist input[type="checkbox"] { accent-color: var(--accent); width: 16px; height: 16px; cursor: pointer; }

.progress-wrap { margin-top: 0.75rem; }
.progress-bar { width: 100%; height: 8px; border-radius: 999px; background: var(--line); overflow: hidden; }
.progress-fill {
  height: 100%; width: 0; border-radius: 999px;
  background: var(--grad);
  transition: width 300ms var(--ease);
}

.result {
  background: var(--accent-subtle);
  border: 1px solid var(--line-accent);
  border-radius: var(--radius-sm);
  padding: 0.75rem; color: var(--ink);
  font-weight: 600; font-size: 0.92rem;
}
.note { color: var(--muted); font-size: 0.88rem; }

.table { width: 100%; border-collapse: collapse; }
.table th, .table td { border: 1px solid var(--line); padding: 0.55rem 0.65rem; text-align: left; font-size: 0.9rem; }
.table th {
  background: var(--surface);
  background: var(--grad);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  font-weight: 700; text-transform: uppercase; letter-spacing: 0.04em; font-size: 0.75rem;
}
.table th { background: var(--surface); -webkit-text-fill-color: var(--accent); color: var(--accent); }
.table td { color: var(--muted); }
.table a { color: var(--accent); font-weight: 600; }
.table a:hover { color: var(--accent-hover); }
.table tbody tr { transition: background 150ms var(--ease); }
.table tbody tr:hover { background: var(--surface); }

@media (max-width: 760px) {
  .tool-row, .tool-row-3 { grid-template-columns: 1fr; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}