/**
 * VIFC App — design tokens & base layer (2026)
 * Premium minimal: calm contrast, soft depth, one accent family.
 */

@import url("https://fonts.googleapis.com/css2?family=Inter:ital,opsz,wght@0,14..32,100..900;1,14..32,100..900&display=swap");

:root {
  color-scheme: dark;

  /* Canvas */
  --vifc-bg-base: #07080c;
  --vifc-bg-surface: #0c0e14;
  --vifc-bg-raised: #12151e;
  --vifc-bg-overlay: rgba(10, 12, 18, 0.72);

  /* Borders & dividers */
  --vifc-border-subtle: rgba(255, 255, 255, 0.06);
  --vifc-border-default: rgba(255, 255, 255, 0.09);
  --vifc-border-strong: rgba(255, 255, 255, 0.14);

  /* Text */
  --vifc-text: #f4f6fb;
  --vifc-text-secondary: #a8b0c4;
  --vifc-text-tertiary: #6b728c;

  /* Accent — teal-green, operational / calm (not “dashboard purple”) */
  --vifc-accent: #2dd4bf;
  --vifc-accent-dim: rgba(45, 212, 191, 0.14);
  --vifc-accent-text: #5eead4;
  --vifc-accent-hover: #5eead4;

  --vifc-danger: #f87171;
  --vifc-danger-bg: rgba(248, 113, 113, 0.1);
  --vifc-danger-border: rgba(248, 113, 113, 0.35);

  /* Elevation */
  --vifc-shadow-xs: 0 1px 0 rgba(255, 255, 255, 0.04) inset;
  --vifc-shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.35);
  --vifc-shadow-md: 0 8px 24px rgba(0, 0, 0, 0.45);
  --vifc-shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.55);

  /* Shape */
  --vifc-radius-sm: 8px;
  --vifc-radius-md: 12px;
  --vifc-radius-lg: 16px;
  --vifc-radius-full: 999px;

  /* Type */
  --vifc-font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --vifc-font-mono: ui-monospace, "SF Mono", Menlo, Consolas, monospace;

  --vifc-text-xs: 0.6875rem;
  --vifc-text-sm: 0.8125rem;
  --vifc-text-md: 0.9375rem;
  --vifc-text-lg: 1.125rem;
  --vifc-text-xl: 1.375rem;
  --vifc-text-2xl: 1.625rem;

  --vifc-leading-tight: 1.25;
  --vifc-leading-normal: 1.5;
  --vifc-leading-relaxed: 1.6;

  --vifc-tracking-tight: -0.02em;
  --vifc-tracking-wide: 0.04em;

  /* Space scale */
  --vifc-space-1: 4px;
  --vifc-space-2: 8px;
  --vifc-space-3: 12px;
  --vifc-space-4: 16px;
  --vifc-space-5: 20px;
  --vifc-space-6: 24px;
  --vifc-space-8: 32px;
  --vifc-space-10: 40px;

  /* Motion */
  --vifc-ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --vifc-duration: 160ms;

  /* Focus — accessibility-first */
  --vifc-focus-ring: 0 0 0 2px var(--vifc-bg-base), 0 0 0 4px var(--vifc-accent);
}

@media (prefers-reduced-motion: reduce) {
  :root {
    --vifc-duration: 0ms;
  }
}

/* ——— Base ——— */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body.vifc-body {
  margin: 0;
  min-height: 100%;
  font-family: var(--vifc-font-sans);
  font-size: var(--vifc-text-md);
  line-height: var(--vifc-leading-normal);
  background: var(--vifc-bg-base);
  color: var(--vifc-text);
  -webkit-font-smoothing: antialiased;
}

/* Buttons */
.vifc-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--vifc-space-2);
  padding: 0.5rem 1rem;
  min-height: 2.25rem;
  font-family: inherit;
  font-size: var(--vifc-text-sm);
  font-weight: 500;
  letter-spacing: var(--vifc-tracking-tight);
  border-radius: var(--vifc-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition:
    background var(--vifc-duration) var(--vifc-ease-out),
    border-color var(--vifc-duration) var(--vifc-ease-out),
    color var(--vifc-duration) var(--vifc-ease-out),
    box-shadow var(--vifc-duration) var(--vifc-ease-out);
}

.vifc-btn:focus-visible {
  outline: none;
  box-shadow: var(--vifc-focus-ring);
}

.vifc-btn--primary {
  background: var(--vifc-accent);
  color: #042f2e;
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: var(--vifc-shadow-xs), var(--vifc-shadow-sm);
}

.vifc-btn--primary:hover {
  background: var(--vifc-accent-hover);
}

.vifc-btn--secondary {
  background: var(--vifc-bg-raised);
  color: var(--vifc-text);
  border-color: var(--vifc-border-default);
  box-shadow: var(--vifc-shadow-xs);
}

.vifc-btn--secondary:hover {
  background: #181c28;
  border-color: var(--vifc-border-strong);
}

.vifc-btn--ghost {
  background: transparent;
  color: var(--vifc-text-secondary);
  border-color: var(--vifc-border-subtle);
}

.vifc-btn--ghost:hover {
  color: var(--vifc-text);
  background: rgba(255, 255, 255, 0.04);
  border-color: var(--vifc-border-default);
}

.vifc-btn--danger {
  background: rgba(248, 113, 113, 0.12);
  color: #fecaca;
  border-color: var(--vifc-danger-border);
}

.vifc-btn--danger:hover {
  background: rgba(248, 113, 113, 0.2);
}

/* Surfaces */
.vifc-card {
  background: var(--vifc-bg-surface);
  border: 1px solid var(--vifc-border-default);
  border-radius: var(--vifc-radius-lg);
  box-shadow: var(--vifc-shadow-xs), var(--vifc-shadow-sm);
}

.vifc-panel {
  background: linear-gradient(180deg, var(--vifc-bg-raised) 0%, var(--vifc-bg-surface) 100%);
  border: 1px solid var(--vifc-border-default);
  border-radius: var(--vifc-radius-lg);
  box-shadow: var(--vifc-shadow-sm);
}

/* Chips / pills */
.vifc-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.65rem;
  font-size: var(--vifc-text-xs);
  font-weight: 500;
  letter-spacing: 0.02em;
  border-radius: var(--vifc-radius-full);
  border: 1px solid var(--vifc-border-default);
  background: rgba(255, 255, 255, 0.03);
  color: var(--vifc-text-secondary);
}

.vifc-pill--accent {
  border-color: rgba(45, 212, 191, 0.35);
  background: var(--vifc-accent-dim);
  color: var(--vifc-accent-text);
}

/* Code */
.vifc-code {
  font-family: var(--vifc-font-mono);
  font-size: 0.75em;
  padding: 0.15em 0.4em;
  border-radius: 6px;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--vifc-border-subtle);
  color: var(--vifc-text-secondary);
}

/* Scrollbars — subtle */
.vifc-scrollbar {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.12) transparent;
}

.vifc-scrollbar::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

.vifc-scrollbar::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--vifc-radius-full);
}

.vifc-scrollbar::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.18);
}