/* FocusScale brand foundation
   Source of truth: companies/focusscale/branding/brand.json
   Light theme palette (portal/pre-session/reports) — dark theme is for marketing site only.
*/

:root {
  /* Colors — light surface (consumer-facing portal) */
  --fs-primary: #0099FF;
  --fs-primary-hover: #0080D4;
  --fs-primary-bg: #E6F4FF;
  --fs-bg-dark: #04070D;
  --fs-text: #1A1F2E;
  --fs-text-muted: #5B6577;
  --fs-text-light: #D5DBE6;
  --fs-surface: #FFFFFF;
  --fs-surface-alt: #F5F5F5;
  --fs-surface-elevated: #F5F8FC;
  --fs-border: #E4E9F2;
  --fs-border-focus: #0099FF;
  --fs-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --fs-shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
  --fs-shadow-lg: 0 8px 24px rgba(0, 0, 0, 0.12);

  /* Status colors */
  --fs-success: #10B981;
  --fs-success-bg: #ECFDF5;
  --fs-warning: #F59E0B;
  --fs-warning-bg: #FFFBEB;
  --fs-danger: #EF4444;
  --fs-danger-bg: #FEF2F2;
  --fs-info: #3B82F6;
  --fs-info-bg: #EFF6FF;

  /* Typography */
  --fs-font-body: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --fs-font-display: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;
  --fs-font-mono: 'JetBrains Mono', 'Fragment Mono', ui-monospace, monospace;
  --fs-font-size-xs: 0.75rem;
  --fs-font-size-sm: 0.875rem;
  --fs-font-size-base: 1rem;
  --fs-font-size-lg: 1.125rem;
  --fs-font-size-xl: 1.25rem;
  --fs-font-size-2xl: 1.5rem;
  --fs-font-size-3xl: 1.875rem;

  /* Spacing */
  --fs-space-1: 0.25rem;
  --fs-space-2: 0.5rem;
  --fs-space-3: 0.75rem;
  --fs-space-4: 1rem;
  --fs-space-6: 1.5rem;
  --fs-space-8: 2rem;
  --fs-space-12: 3rem;

  /* Radius */
  --fs-radius-sm: 4px;
  --fs-radius-md: 8px;
  --fs-radius-lg: 12px;
  --fs-radius-xl: 16px;
  --fs-radius-full: 9999px;

  /* Backward-compat aliases for legacy style.css and chat.html
     (Sesja 3 dorobi pełny refactor chat UI; do tego czasu używamy aliasów)
  */
  --accent-primary: var(--fs-primary);
  --text-primary: var(--fs-text);
  --text-secondary: var(--fs-text-muted);
  --text-muted: var(--fs-text-muted);
  --bg: var(--fs-surface-alt);
  --card-bg: var(--fs-surface);
  --border: var(--fs-border);
  --error: var(--fs-danger);
}

/* Reset + base */
*,
*::before,
*::after { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  padding: 0;
  font-family: var(--fs-font-body);
  font-size: var(--fs-font-size-base);
  line-height: 1.5;
  color: var(--fs-text);
  background: var(--fs-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--fs-font-display);
  font-weight: 700;
  color: var(--fs-bg-dark);
  margin: 0 0 var(--fs-space-4) 0;
  line-height: 1.25;
}
h1 { font-size: var(--fs-font-size-3xl); }
h2 { font-size: var(--fs-font-size-2xl); }
h3 { font-size: var(--fs-font-size-xl); }

p { margin: 0 0 var(--fs-space-4) 0; }
a { color: var(--fs-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* A11y — focus visibility */
:focus-visible {
  outline: 2px solid var(--fs-primary);
  outline-offset: 2px;
}

/* Buttons */
.fs-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--fs-space-2);
  padding: var(--fs-space-3) var(--fs-space-6);
  font-family: var(--fs-font-body);
  font-size: var(--fs-font-size-base);
  font-weight: 600;
  border-radius: var(--fs-radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background-color 0.15s ease, color 0.15s ease, border-color 0.15s ease, box-shadow 0.15s ease;
  text-decoration: none;
  min-height: 44px; /* WCAG 2.5.5 touch target */
  white-space: nowrap;
}
.fs-btn-primary {
  background: var(--fs-primary);
  color: #ffffff;
}
.fs-btn-primary:hover { background: var(--fs-primary-hover); text-decoration: none; }
.fs-btn-primary[disabled],
.fs-btn-primary:disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
}
.fs-btn-secondary {
  background: transparent;
  color: var(--fs-primary);
  border-color: var(--fs-primary);
}
.fs-btn-secondary:hover { background: var(--fs-primary-bg); text-decoration: none; }
.fs-btn-ghost {
  background: transparent;
  color: var(--fs-text-muted);
  border-color: transparent;
}
.fs-btn-ghost:hover { background: var(--fs-surface-alt); color: var(--fs-text); text-decoration: none; }

/* Inputs */
.fs-input,
.fs-textarea,
.fs-select {
  width: 100%;
  padding: var(--fs-space-3) var(--fs-space-4);
  font-family: var(--fs-font-body);
  font-size: var(--fs-font-size-base);
  color: var(--fs-text);
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius-md);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
  min-height: 44px;
}
.fs-textarea {
  min-height: 88px;
  resize: vertical;
  line-height: 1.5;
}
.fs-input:focus,
.fs-textarea:focus,
.fs-select:focus {
  outline: none;
  border-color: var(--fs-border-focus);
  box-shadow: 0 0 0 3px var(--fs-primary-bg);
}
.fs-input::placeholder,
.fs-textarea::placeholder { color: var(--fs-text-muted); }

/* Cards */
.fs-card {
  background: var(--fs-surface);
  border: 1px solid var(--fs-border);
  border-radius: var(--fs-radius-lg);
  padding: var(--fs-space-6);
  box-shadow: var(--fs-shadow-sm);
}
.fs-card-elevated { box-shadow: var(--fs-shadow-md); }

/* Header z logo */
.fs-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--fs-space-4) var(--fs-space-6);
  background: var(--fs-surface);
  border-bottom: 1px solid var(--fs-border);
}
.fs-header img { height: 32px; width: auto; display: block; }
.fs-header-meta {
  display: flex;
  align-items: center;
  gap: var(--fs-space-4);
  color: var(--fs-text-muted);
  font-size: var(--fs-font-size-sm);
}

/* Footer */
.fs-footer {
  text-align: center;
  padding: var(--fs-space-8) var(--fs-space-4);
  color: var(--fs-text-muted);
  font-size: var(--fs-font-size-sm);
}
.fs-footer p { margin: var(--fs-space-1) 0; }
.fs-footer a { color: var(--fs-primary); }

/* Status badges */
.fs-badge {
  display: inline-flex;
  align-items: center;
  padding: var(--fs-space-1) var(--fs-space-3);
  border-radius: var(--fs-radius-full);
  font-size: var(--fs-font-size-xs);
  font-weight: 600;
  white-space: nowrap;
}
.fs-badge-success { background: var(--fs-success-bg); color: var(--fs-success); }
.fs-badge-warning { background: var(--fs-warning-bg); color: var(--fs-warning); }
.fs-badge-info { background: var(--fs-primary-bg); color: var(--fs-primary); }
.fs-badge-neutral { background: var(--fs-surface-alt); color: var(--fs-text-muted); }
.fs-badge-danger { background: var(--fs-danger-bg); color: var(--fs-danger); }

/* Mobile */
@media (max-width: 768px) {
  .fs-card { padding: var(--fs-space-4); border-radius: var(--fs-radius-md); }
  .fs-header { padding: var(--fs-space-3) var(--fs-space-4); }
  h1 { font-size: var(--fs-font-size-2xl); }
  h2 { font-size: var(--fs-font-size-xl); }
}

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