/* ══════════════════════════════════════════════════════════════
   core.css — Shared premium design tokens for RagSap.
   One source of truth for the visual language: typography, 
   buttons, inputs, tooltips, shadows, and animations.
   ══════════════════════════════════════════════════════════════ */

:root {
  /* Premium Colors */
  --purple: #7C3AED; 
  --purple-d: #6D28D9; 
  --purple-wash: #F5F3FF; 
  --purple-line: #EDE9FE;
  --purple-glow: rgba(124, 58, 237, 0.2);
  
  --ink: #0F172A; 
  --text: #334155; 
  --muted: #64748B; 
  --muted-2: #94A3B8;
  
  --line: rgba(15, 23, 42, 0.08); 
  --line-2: rgba(15, 23, 42, 0.04);
  
  --paper: #FFFFFF; 
  --paper-2: #F8FAFC;
  --surface-hover: #F1F5F9;
  --bg-main: #F4F4F5;
  
  --ok: #10B981; 
  --ok-wash: #ECFDF5; 
  --warn: #F59E0B; 
  --warn-wash: #FEF3C7; 
  --err: #EF4444; 
  --err-wash: #FEF2F2;

  /* Modern Geometry */
  --r-sm: 8px; 
  --r: 12px; 
  --r-lg: 16px;
  --r-full: 9999px;

  /* Deep, natural shadows */
  --sh-sm: 0 1px 2px rgba(15, 23, 42, 0.04);
  --sh:    0 4px 6px -1px rgba(15, 23, 42, 0.06), 0 2px 4px -2px rgba(15, 23, 42, 0.03);
  --sh-lg: 0 12px 24px -8px rgba(15, 23, 42, 0.08), 0 4px 12px -4px rgba(15, 23, 42, 0.04);
  --sh-panel: 0 0 0 1px rgba(15, 23, 42, 0.05), 0 8px 16px -4px rgba(15, 23, 42, 0.05);

  /* Typography */
  --sans: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --disp: 'Bricolage Grotesque', var(--sans);
  
  /* Transitions */
  --t-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --t-base: 260ms cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
[hidden] { display: none !important; }

html { scroll-behavior: smooth; font-size: 15.5px; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--sans); background: var(--paper); color: var(--text);
  line-height: 1.6; overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--disp); letter-spacing: -0.025em;
  line-height: 1.15; font-weight: 700; color: var(--ink);
}
a { text-decoration: none; color: inherit; transition: color var(--t-fast); }

/* ── Utilities ───────────────────────────────────────────────── */
.wrap    { max-width: 1120px; margin: 0 auto; padding: 0 32px; }
.wrap-lg { max-width: 1240px; margin: 0 auto; padding: 0 32px; }
.narrow  { max-width: 820px;  margin: 0 auto; padding: 0 32px; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

/* ── Buttons ─────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .6rem;
  background: linear-gradient(180deg, var(--purple) 0%, var(--purple-d) 100%);
  color: #fff; font-weight: 600; font-size: .98rem;
  padding: .85rem 1.6rem;
  border: 1px solid var(--purple-d); border-radius: var(--r-full); cursor: pointer;
  font-family: var(--sans); letter-spacing: -0.01em; user-select: none;
  transition: all var(--t-fast);
  box-shadow: 0 2px 6px var(--purple-glow), inset 0 1px 0 rgba(255,255,255,0.15);
}
.btn:hover  { 
  box-shadow: 0 8px 24px rgba(109,59,238,.45), inset 0 1px 0 rgba(255,255,255,0.2); 
  transform: translateY(-2px); 
}
.btn:active { transform: translateY(0) scale(0.97) !important; box-shadow: none !important; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none; box-shadow: none; pointer-events: none; }
.btn.loading { pointer-events: none !important; cursor: wait !important; opacity: .8 !important; }

.btn.dark { background: var(--ink); border-color: var(--ink); box-shadow: 0 2px 6px rgba(11,15,26,.3); }
.btn.dark:hover { background: #181c26; box-shadow: 0 8px 20px rgba(11,15,26,.4); }

.btn.ghost {
  background: var(--paper); color: var(--text);
  border: 1px solid var(--line); box-shadow: var(--sh-sm);
}
.btn.ghost:hover {
  border-color: var(--muted-2); color: var(--ink);
  background: var(--paper-2); box-shadow: var(--sh);
}

.btn.warn { background: var(--err); border-color: var(--err); color: #fff; box-shadow: 0 2px 4px rgba(239,68,68,.2); }
.btn.warn:hover { background: #DC2626; box-shadow: 0 6px 16px rgba(239,68,68,.3); transform: translateY(-1px); }
.btn.sm { padding: .5rem .85rem; font-size: .85rem; border-radius: 8px; }

/* ── Forms & Inputs ───────────────────────────────────────────── */
.field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.field-label { font-size: .9rem; font-weight: 600; color: var(--ink); }
.field-label .opt { color: var(--muted-2); font-weight: 400; font-size: .85rem; }
.input, .field-input, .field-textarea { 
  width: 100%; font-family: var(--sans); font-size: .95rem; 
  padding: .85rem 1rem; border: 1px solid var(--line); 
  border-radius: var(--r-sm); background: var(--paper-2); color: var(--ink); 
  outline: none; transition: all var(--t-fast); box-shadow: inset 0 1px 2px rgba(11, 15, 26, 0.02);
}
.input:hover, .field-input:hover, .field-textarea:hover { border-color: var(--muted-2); background: var(--paper); }
.input:focus, .field-input:focus, .field-textarea:focus { 
  background: var(--paper); border-color: var(--purple); 
  box-shadow: 0 0 0 4px var(--purple-wash); 
}
.input::placeholder, .field-input::placeholder, .field-textarea::placeholder { color: var(--muted-2); }
textarea.field-input, textarea.field-textarea { resize: vertical; min-height: 100px; }
.form-error { color: var(--err); font-size: .88rem; margin-top: .5rem; }

/* ── Modals & Tooltips ────────────────────────────────────────── */
.modal-overlay { 
  position: fixed; inset: 0; background: rgba(15, 23, 42, 0.45); z-index: 100; 
  display: flex; align-items: center; justify-content: center; padding: 24px; 
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px); 
}
.modal-card { 
  background: var(--paper); border-radius: var(--r-lg); padding: 32px; 
  max-width: 480px; width: 100%; box-shadow: var(--sh-lg); border: 1px solid rgba(255,255,255,0.8); 
}
.modal-card h3 { font-size: 1.25rem; margin-bottom: 12px; display: flex; align-items: center; gap: 12px; }
.modal-card p { color: var(--muted); font-size: .95rem; line-height: 1.6; }

/* Help Buttons */
button.help, .help { 
  display: inline-flex !important; align-items: center; justify-content: center; 
  width: 22px; height: 22px; min-width: 22px; flex-shrink: 0; border-radius: 50%; 
  background: var(--paper); color: var(--muted); border: 1px solid var(--line); 
  font-size: .75rem; font-weight: 700; font-family: inherit; cursor: pointer; 
  margin-left: 6px; vertical-align: middle; position: relative; top: -1px; 
  transition: all var(--t-fast); padding: 0; line-height: 1; box-shadow: var(--sh-sm); 
}
button.help:hover, button.help:focus, .help:hover, .help:focus { 
  background: var(--purple-wash); color: var(--purple-d); border-color: var(--purple-line); 
  outline: none; transform: scale(1.1); box-shadow: 0 2px 6px var(--purple-glow); 
}
button.help[aria-expanded="true"] { background: var(--purple); color: #fff; border-color: var(--purple); box-shadow: 0 2px 8px var(--purple-glow); }

/* ── Animations ──────────────────────────────────────────────── */
@keyframes fadeSlideUp {
  0% { opacity: 0; transform: translateY(15px); }
  100% { opacity: 1; transform: translateY(0); }
}
.animate-enter { animation: fadeSlideUp 0.5s cubic-bezier(0.2, 0.8, 0.2, 1) forwards; opacity: 0; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

@media(prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001s !important; transition-duration: 0.001s !important; }
  .animate-enter { animation: none !important; opacity: 1 !important; transform: none !important; }
}

/* ── Misc Utilities ──────────────────────────────────────────── */
.pill {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 4px 10px; border-radius: 999px;
  font-size: .7rem; font-weight: 700; letter-spacing: .02em;
}
.pill-good { background: var(--ok-wash); color: var(--ok); }
.pill-mid { background: var(--warn-wash); color: var(--warn); }
.pill-low { background: var(--err-wash); color: var(--err); }
code { font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace; font-size: .85em; background: rgba(15, 23, 42, 0.05); color: var(--ink); padding: 2px 6px; border-radius: 6px; }

/* When .mark contains the RagSap logo, use a white rounded tile */
.brand .mark:has(img),.sb-brand .mark:has(img),.snav .brand .mark:has(img),footer .brand .mark:has(img),.mark:has(img){background:#fff!important;border:1px solid rgba(11,15,26,.08)!important;border-radius:8px!important;box-shadow:0 1px 3px rgba(11,15,26,.06)!important;padding:3px!important;overflow:hidden!important;}