/*
 * Phrase Foundry — Global Stylesheet (v5.0)
 * File: /global/styles/styles.css
 * Purpose: One source of truth for typography, layout, buttons, forms, grids, utilities.
 * Author: Glenn J Leader
 * Notes:
 *  - This sheet standardises the look and feel across all tools (Keyword Scrubber, Keyword Bloom, Replace Wizard, Slug Generator, Sort Master, etc.)
 *  - Keep tokens at the top for quick theming. All components reference these.
 *  - Use UK spelling in comments to keep things consistent for Glenn.
 */

/* ========================================================
   0. CSS Reset and Base Normalisation
   ======================================================== */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body { margin: 0; font-family: system-ui, -apple-system, Segoe UI, Roboto, Ubuntu, Cantarell, Noto Sans, sans-serif; color: #222; background: #fff; line-height: 1.55; }
img, svg, video, canvas, audio, iframe { display: block; max-width: 100%; }
img { height: auto; }
input, button, textarea, select { font: inherit; color: inherit; }
button { background: none; border: none; padding: 0; cursor: pointer; }
a { color: #0b57d0; text-decoration: none; }
a:hover { text-decoration: underline; }

/* Remove default list spacing */
ul[class], ol[class] { padding: 0; margin: 0; list-style: none; }

/* ========================================================
   1. Design Tokens (pastel palette, spacing, radii, shadows)
   Change these to theme the entire site.
   ======================================================== */
:root {
  /* Colours */
  --text: #222;
  --muted: #666;
  --border: #e6e6ef;
  --panel: #fff;
  --panel-alt: #f9fafb;
  --accent: #0b57d0;
  --danger: #b00020;
  --success: #036b26;
  --warning: #9a6b00;

  /* Pastel gradients for feature cards */
  --pastel-1: linear-gradient(135deg,#f7faff,#eef3ff);
  --pastel-2: linear-gradient(135deg,#fff7fb,#ffeef7);
  --pastel-3: linear-gradient(135deg,#f7fffb,#e8fff4);
  --pastel-4: linear-gradient(135deg,#fffaf7,#fff1e8);
  --pastel-5: linear-gradient(135deg,#f8f7ff,#eceaff);
  --pastel-6: linear-gradient(135deg,#f7ffff,#e9fbff);
  --pastel-7: linear-gradient(135deg,#f9f7ff,#efe8ff);
  --pastel-8: linear-gradient(135deg,#f7fff9,#eafff0);
  --pastel-9: linear-gradient(135deg,#fff7f7,#ffecec);
  --pastel-10: linear-gradient(135deg,#f7f9ff,#ecf1ff);
  --pastel-11: linear-gradient(135deg,#f8fff7,#efffeb);
  --pastel-12: linear-gradient(135deg,#f7fffe,#ebfffe);
  --pastel-13: linear-gradient(135deg,#fff7fb,#ffeaf5);
  --pastel-14: linear-gradient(135deg,#f9fff7,#f0ffee);
  --pastel-15: linear-gradient(135deg,#fff9f7,#fff0ea);

  /* Buttons (shared across all tools) */
  --btn-radius: .3rem;
  --btn-pad-y: .28rem;
  --btn-pad-x: .6rem;
  --btn-border: #d0dafc;
  --btn-bg: #f7faff;
  --btn-bg-hover: #eef3ff;
  --btn-primary-border: #b4c3ff;
  --btn-primary-bg: #eaf0ff;
  --btn-font-size: .9rem;

  /* Forms */
  --field-radius: .4rem;
  --field-border: #ddd;
  --field-focus: #b4c3ff;
  --field-bg: #fff;

  /* Spacing scale */
  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;

  /* Layout */
  --container-max: 1100px; /* Match Keyword Scrubber visual width */
  --shadow-1: 0 1px 0 rgba(0,0,0,.03);
}

/* ========================================================
   2. Layout: container, header, footer, breadcrumbs
   ======================================================== */
.container { max-width: var(--container-max); margin: 0 auto; padding: var(--space-4); }
.site-header, .site-footer { background: #fafafa; border-bottom: 1px solid var(--border); }
.site-footer { border-top: 1px solid var(--border); border-bottom: 0; }

.breadcrumb { font-size: .95rem; margin: var(--space-2) 0 var(--space-4); color: var(--muted); }
.breadcrumb a { color: var(--accent); text-decoration: none; }
.breadcrumb a:hover { text-decoration: underline; }

/* ========================================================
   3. Typography helpers
   ======================================================== */
.h1, h1 { font-size: clamp(1.6rem, 2.2vw, 2rem); margin: 0 0 var(--space-3); }
.h2, h2 { font-size: clamp(1.25rem, 1.6vw, 1.35rem); margin: 0 0 var(--space-3); }
.h3, h3 { font-size: 1.05rem; margin: 0 0 var(--space-2); }
.muted { color: var(--muted); }
.small { font-size: .9rem; }

/* ========================================================
   4. Panels and cards
   ======================================================== */
.panel { background: var(--panel); border: 1px solid var(--border); border-radius: .75rem; padding: var(--space-4); box-shadow: var(--shadow-1); }
.panel.alt { background: var(--panel-alt); }
.note { background: #fff8e1; border: 1px solid #ffe082; border-radius: .6rem; padding: .6rem .8rem; }
.error { color: var(--danger); }
.success { color: var(--success); }

/* Feature colour blocks (15 rotating pastels) */
.color-1 { background: var(--pastel-1); }
.color-2 { background: var(--pastel-2); }
.color-3 { background: var(--pastel-3); }
.color-4 { background: var(--pastel-4); }
.color-5 { background: var(--pastel-5); }
.color-6 { background: var(--pastel-6); }
.color-7 { background: var(--pastel-7); }
.color-8 { background: var(--pastel-8); }
.color-9 { background: var(--pastel-9); }
.color-10 { background: var(--pastel-10); }
.color-11 { background: var(--pastel-11); }
.color-12 { background: var(--pastel-12); }
.color-13 { background: var(--pastel-13); }
.color-14 { background: var(--pastel-14); }
.color-15 { background: var(--pastel-15); }

/* ========================================================
   5. Buttons (shared across all tools)
   ======================================================== */
.btn {
  display: inline-block;
  padding: var(--btn-pad-y) var(--btn-pad-x);
  border: 1px solid var(--btn-border);
  border-radius: var(--btn-radius);
  background: var(--btn-bg);
  color: var(--text);
  font-size: var(--btn-font-size);
  line-height: 1.1;
  text-decoration: none; /* so <a class=btn> looks like button */
}
.btn:hover { background: var(--btn-bg-hover); text-decoration: none; }
.btn:disabled { opacity: .55; cursor: not-allowed; }

.btn-primary { background: var(--btn-primary-bg); border-color: var(--btn-primary-border); font-weight: 600; }
.btn-danger  { background: #ffe9ec; border-color: #ffc2ca; color: #7c0a1a; }
.btn-success { background: #e8f7ee; border-color: #c6ebd3; color: #0d5c2c; }
.btn-ghost   { background: transparent; border-color: var(--border); }

/* Control rows */
.sticky-controls { position: sticky; top: .5rem; display: flex; gap: .5rem; flex-wrap: wrap; margin: var(--space-4) 0; }

/* ========================================================
   6. Forms and inputs (labels align top left)
   ======================================================== */
label { display: inline-flex; align-items: flex-start; gap: .5rem; }
label input[type="checkbox"], label input[type="radio"] { margin-top: .2rem; }

.input, textarea, select {
  width: 100%;
  background: var(--field-bg);
  border: 1px solid var(--field-border);
  border-radius: var(--field-radius);
  padding: .65rem .75rem;
}
.input:focus, textarea:focus, select:focus { outline: none; border-color: var(--field-focus); box-shadow: 0 0 0 3px rgba(180,195,255,.35); }

textarea { min-height: 220px; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; white-space: pre-wrap; word-wrap: break-word; }

/* Form layout helpers */
.form-row { display: grid; grid-template-columns: 200px 1fr; gap: 1rem; align-items: start; }
@media (max-width: 780px) { .form-row { grid-template-columns: 1fr; } }

/* ========================================================
   7. Grid and responsive helpers
   ======================================================== */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
@media (max-width: 900px){ .grid-2, .grid-3 { grid-template-columns: 1fr; } }

/* Tool page default two-column content areas */
.grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 900px){ .grid { grid-template-columns: 1fr; } }

/* ========================================================
   8. Tables
   ======================================================== */
table { width: 100%; border-collapse: collapse; }
th, td { padding: .6rem .75rem; border-bottom: 1px solid var(--border); text-align: left; }
th { background: #f7f8ff; }
tr:hover td { background: #fafbff; }

/* ========================================================
   9. Tooling: link bar (User Guide + helpers)
   ======================================================== */
.link-bar { display: flex; justify-content: space-between; gap: 1rem; align-items: center; flex-wrap: wrap; margin: 1.5rem 0 2.5rem; }
.link-bar .guide { font-size: .9rem; display: inline-block; }

/* ========================================================
   10. Stats chips
   ======================================================== */
.stats { display: grid; grid-template-columns: repeat(4, minmax(0,1fr)); gap: .5rem; margin-top: .75rem; }
.stat  { background: #f9fafb; border: 1px solid var(--border); border-radius: .6rem; padding: .5rem .75rem; }
@media (max-width: 700px){ .stats { grid-template-columns: repeat(2, minmax(0,1fr)); } }

/* ========================================================
   11. Utilities
   ======================================================== */
.mt-0{margin-top:0} .mt-1{margin-top:.25rem} .mt-2{margin-top:.5rem} .mt-3{margin-top:.75rem} .mt-4{margin-top:1rem}
.mb-0{margin-bottom:0} .mb-1{margin-bottom:.25rem} .mb-2{margin-bottom:.5rem} .mb-3{margin-bottom:.75rem} .mb-4{margin-bottom:1rem}
.p-0{padding:0} .p-1{padding:.25rem} .p-2{padding:.5rem} .p-3{padding:.75rem} .p-4{padding:1rem}
.text-centre{text-align:center} .text-right{text-align:right}
.nowrap{white-space:nowrap}
.w-100{width:100%}
 
/* Word wrap toggle utility (for tools that offer it) */
.wrap-on { white-space: pre-wrap; word-wrap: break-word; }
.wrap-off{ white-space: pre; overflow: auto; }

/* ========================================================
   12. Animations (subtle)
   ======================================================== */
.fade-in { animation: fade-in .18s ease-out; }
@keyframes fade-in { from { opacity: 0; transform: translateY(2px); } to { opacity: 1; transform: translateY(0); } }

/* ========================================================
   13. Print tweaks (useful for user guides)
   ======================================================== */
@media print {
  .sticky-controls, .link-bar, .no-print { display: none !important; }
  a { text-decoration: none; color: #000; }
  .panel { box-shadow: none; border-color: #ccc; }
}