/* ============================================================
   Vista — Premium Design System
   Dark luxury. Confident. Minimal but with depth.
   Like if Linear and CapCut had a baby.
   ============================================================ */

@font-face {
  font-family: 'Coolvetica';
  src: url('lib/fonts/CoolveticaRg.otf') format('opentype');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'SF Pro Display';
  src: url('lib/fonts/SFNS.ttf') format('truetype');
  font-weight: 100 1000;
  font-style: normal;
  font-display: swap;
}

:root {
  /* Surface scale — deep near-black with subtle warmth */
  --vf-bg-0: #0A0A0B;
  --vf-bg-1: #111113;
  --vf-bg-2: #161618;
  --vf-bg-3: #1A1A1E;
  --vf-bg-4: #222226;
  --vf-bg-elev: #131315;

  /* Borders & dividers — subtle but present */
  --vf-border: #2A2A2F;
  --vf-border-strong: #3A3A42;
  --vf-border-subtle: #1E1E22;

  /* (kept for cards that still reference it, but now a no-op) */
  --vf-edge: none;
  --vf-edge-strong: none;

  /* Text — crisp whites with good hierarchy */
  --vf-text: #F0F0F2;
  --vf-text-2: #A8A8B0;
  --vf-text-3: #6B6B7A;
  --vf-text-4: #45454F;

  /* Accent — electric blue */
  --vf-accent: #0055ff;
  --vf-accent-strong: #0044dd;
  --vf-accent-dim: #003399;
  --vf-accent-ink: #ffffff;
  --vf-accent-soft: rgba(0, 85, 255, 0.15);
  --vf-accent-soft-2: rgba(0, 85, 255, 0.08);

  /* Semantic */
  --vf-success: #10B981;
  --vf-warn: #F59E0B;
  --vf-danger: #EF4444;
  --vf-info: #3B82F6;

  /* Typography — sharp, modern sans-serif */
  --vf-sans: "Geist", "DM Sans", system-ui, -apple-system, sans-serif;
  --vf-mono: "JetBrains Mono", "Geist Mono", ui-monospace, monospace;
  --vf-display: "Geist", "DM Sans", system-ui, sans-serif;

  /* Radii — generous, modern */
  --vf-r-xs: 4px;
  --vf-r-sm: 8px;
  --vf-r-md: 12px;
  --vf-r-lg: 16px;
  --vf-r-xl: 20px;
  --vf-r-2xl: 28px;
  --vf-r-pill: 999px;

  /* Spacing scale */
  --vf-s-1: 4px;
  --vf-s-2: 8px;
  --vf-s-3: 12px;
  --vf-s-4: 16px;
  --vf-s-5: 20px;
  --vf-s-6: 24px;
  --vf-s-8: 32px;
  --vf-s-10: 40px;
  --vf-s-12: 48px;
  --vf-s-16: 64px;

  /* Shadows — layered depth */
  --vf-shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.5), 0 1px 2px rgba(0, 0, 0, 0.3);
  --vf-shadow-md: 0 4px 16px rgba(0, 0, 0, 0.5), 0 8px 32px rgba(0, 0, 0, 0.3);
  --vf-shadow-lg: 0 12px 48px rgba(0, 0, 0, 0.6), 0 24px 80px rgba(0, 0, 0, 0.4);
  --vf-shadow-accent: 0 0 0 1px rgba(37, 99, 235, 0.5), 0 4px 20px rgba(37, 99, 235, 0.25);
  --vf-shadow-glow: 0 0 40px rgba(37, 99, 235, 0.15);

  /* Motion — snappy, premium */
  --vf-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --vf-ease-snap: cubic-bezier(0.65, 0, 0.35, 1);
  --vf-ease-out: cubic-bezier(0, 0, 0.2, 1);
  --vf-dur-fast: 120ms;
  --vf-dur: 200ms;
  --vf-dur-slow: 400ms;
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  background: var(--vf-bg-0);
  color: var(--vf-text);
  font-family: var(--vf-sans);
  font-feature-settings: "ss01", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow: hidden;
  height: 100vh;
  width: 100vw;
}

#root {
  height: 100vh;
  width: 100vw;
  overflow: hidden;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
  color: inherit;
  padding: 0;
}

[onClick], [onclick] { cursor: pointer; }
input[type="range"] { cursor: pointer; }

input, textarea, select {
  font-family: inherit;
  color: inherit;
}

::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--vf-bg-4);
  border-radius: 999px;
  border: 3px solid transparent;
  background-clip: content-box;
}
::-webkit-scrollbar-thumb:hover { background: var(--vf-border-strong); background-clip: content-box; }
::-webkit-scrollbar-corner { background: transparent; }

/* Kill ALL focus rings and outlines globally */
*, *:focus, *:focus-visible, *:focus-within, *:active {
  outline: none !important;
  box-shadow: none !important;
  -webkit-tap-highlight-color: transparent !important;
}

button, a, [role="button"], [tabindex] {
  user-select: none;
  -webkit-user-select: none;
}

::selection {
  background: rgba(59, 130, 246, 0.3);
  color: #F0F0F2;
}


/* ============================================================
   Typography utilities
   ============================================================ */
.vf-display {
  font-family: var(--vf-display);
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 0.95;
}
.vf-eyebrow {
  font-family: var(--vf-sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.005em;
  text-transform: none;
  color: var(--vf-text-2);
}
.vf-mono { font-family: var(--vf-mono); }
.vf-num { font-variant-numeric: tabular-nums; }

/* ============================================================
   Buttons
   ============================================================ */
.vf-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 36px;
  padding: 0 14px;
  border-radius: var(--vf-r-md);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: -0.005em;
  transition: background var(--vf-dur) var(--vf-ease),
              color var(--vf-dur) var(--vf-ease),
              border-color var(--vf-dur) var(--vf-ease),
              transform var(--vf-dur-fast) var(--vf-ease);
  white-space: nowrap;
  user-select: none;
}
.vf-btn:active { transform: translateY(1px); }

.vf-btn-primary {
  background: linear-gradient(135deg, #0055ff 0%, #003399 100%);
  color: var(--vf-accent-ink);
  font-weight: 600;
  box-shadow: 0 1px 0 rgba(255,255,255,0.10) inset, 0 4px 20px rgba(0, 85, 255, 0.35), 0 0 0 1px rgba(0, 85, 255, 0.1);
}
.vf-btn-primary:hover {
  background: linear-gradient(135deg, #0044dd 0%, #002a80 100%);
  box-shadow: 0 1px 0 rgba(255,255,255,0.12) inset, 0 6px 28px rgba(0, 85, 255, 0.45), 0 0 0 1px rgba(0, 85, 255, 0.2);
}

.vf-btn-ghost {
  background: transparent;
  color: var(--vf-text-2);
  border: 1px solid var(--vf-border);
}
.vf-btn-ghost:hover {
  color: var(--vf-text);
  border-color: var(--vf-border-strong);
  background: var(--vf-bg-2);
}

.vf-btn-secondary {
  background: var(--vf-bg-3);
  color: var(--vf-text);
  border: 1px solid var(--vf-border-strong);
}
.vf-btn-secondary:hover {
  background: var(--vf-bg-4);
}

.vf-btn-icon {
  width: 36px;
  height: 36px;
  padding: 0;
  border-radius: var(--vf-r-md);
  background: transparent;
  color: var(--vf-text-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background var(--vf-dur) var(--vf-ease), color var(--vf-dur) var(--vf-ease);
}
.vf-btn-icon:hover { background: var(--vf-bg-2); color: var(--vf-text); }

.vf-btn-lg { height: 48px; padding: 0 22px; font-size: 14px; border-radius: var(--vf-r-md); }

/* ============================================================
   Cards / Surfaces
   ============================================================ */
.vf-card {
  background: var(--vf-bg-1);
  border: 1px solid var(--vf-border);
  border-radius: var(--vf-r-lg);
}
.vf-card-elev {
  background: var(--vf-bg-2);
  border: 1px solid var(--vf-border);
  border-radius: var(--vf-r-lg);
  box-shadow: var(--vf-shadow-md);
}

/* ============================================================
   Inputs
   ============================================================ */
.vf-input {
  width: 100%;
  height: 44px;
  padding: 0 14px;
  background: var(--vf-bg-2);
  border: 1px solid var(--vf-border);
  border-radius: var(--vf-r-md);
  color: var(--vf-text);
  font-size: 14px;
  outline: none;
  transition: border-color var(--vf-dur) var(--vf-ease), background var(--vf-dur) var(--vf-ease);
}
.vf-input::placeholder { color: var(--vf-text-3); }
.vf-input:focus {
  border-color: var(--vf-accent);
  background: var(--vf-bg-1);
}

/* ============================================================
   Chip / Badge / Pill
   ============================================================ */
.vf-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 22px;
  padding: 0 8px;
  border-radius: var(--vf-r-pill);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.01em;
  background: var(--vf-bg-3);
  color: var(--vf-text-2);
  border: 1px solid var(--vf-border);
}
.vf-chip-accent {
  background: var(--vf-accent-soft);
  color: var(--vf-accent);
  border-color: rgba(212, 255, 58, 0.25);
}
.vf-chip-mono {
  font-family: var(--vf-sans);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: -0.005em;
  text-transform: none;
}

/* ============================================================
   Tab bar
   ============================================================ */
.vf-tabs {
  display: inline-flex;
  background: var(--vf-bg-2);
  border: 1px solid var(--vf-border);
  border-radius: var(--vf-r-md);
  padding: 3px;
  gap: 2px;
}
.vf-tab {
  padding: 6px 12px;
  border-radius: 7px;
  font-size: 12px;
  color: var(--vf-text-2);
  font-weight: 500;
  transition: background var(--vf-dur) var(--vf-ease), color var(--vf-dur) var(--vf-ease);
}
.vf-tab[aria-selected="true"] {
  background: var(--vf-bg-4);
  color: var(--vf-text);
}
.vf-tab:hover { color: var(--vf-text); }

/* ============================================================
   Scroll regions
   ============================================================ */
.vf-scroll {
  overflow-y: auto;
  scroll-behavior: smooth;
}

/* ============================================================
   Anim helpers
   ============================================================ */
@keyframes vfFadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}
@keyframes vfFadeInScale {
  from { opacity: 0; transform: scale(0.96); }
  to { opacity: 1; transform: scale(1); }
}
@keyframes vfPulse {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}
@keyframes vfShimmer {
  0% { background-position: -200px 0; }
  100% { background-position: calc(200px + 100%) 0; }
}
@keyframes vfSpin {
  to { transform: rotate(360deg); }
}
@keyframes vfDash {
  to { stroke-dashoffset: -200; }
}

.vf-anim-in { animation: vfFadeIn 480ms var(--vf-ease) both; }

@keyframes vfHookFade {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes vfHookPop {
  from { opacity: 0; transform: scale(0.55); }
  60%  { transform: scale(1.08); }
  to   { opacity: 1; transform: scale(1); }
}
@keyframes vfHookSlide {
  from { opacity: 0; transform: translateY(-18px); }
  to   { opacity: 1; transform: translateY(0); }
}
.vf-hook-fade  { animation: vfHookFade  420ms cubic-bezier(0.4,0,0.2,1) both; }
.vf-hook-pop   { animation: vfHookPop   480ms cubic-bezier(0.34,1.56,0.64,1) both; }
.vf-hook-slide { animation: vfHookSlide 380ms cubic-bezier(0.4,0,0.2,1) both; }

/* ============================================================
   Placeholder image (subtle stripes)
   ============================================================ */
.vf-img-placeholder {
  background:
    repeating-linear-gradient(
      135deg,
      var(--vf-bg-3) 0 8px,
      var(--vf-bg-2) 8px 16px
    );
  position: relative;
}

/* ============================================================
   Global hover states — every clickable element gets feedback
   ============================================================ */

/* Generic button / role=button */
button:not(:disabled),
[role="button"]:not(:disabled) {
  transition:
    background  160ms var(--vf-ease),
    color       160ms var(--vf-ease),
    border-color 160ms var(--vf-ease),
    opacity     160ms var(--vf-ease),
    transform   120ms var(--vf-ease);
}

/* Bare transparent buttons brighten slightly */
button:not(:disabled):not(.vf-btn):not(.vf-btn-icon):hover {
  opacity: 0.82;
}
button:not(:disabled):active {
  transform: scale(0.97);
  opacity: 0.75;
}

/* vf-btn variants */
.vf-btn:not(:disabled):hover { filter: brightness(1.12); }
.vf-btn:not(:disabled):active { transform: translateY(1px); }

.vf-btn-primary:not(:disabled):hover {
  filter: none;
  background: linear-gradient(135deg, #1a4dad 0%, #1a6bff 100%) !important;
}
.vf-btn-ghost:not(:disabled):hover {
  filter: none;
  background: var(--vf-bg-3) !important;
  color: var(--vf-text) !important;
  border-color: var(--vf-border-strong) !important;
}
.vf-btn-secondary:not(:disabled):hover {
  filter: none;
  background: var(--vf-bg-4) !important;
}
.vf-btn-icon:not(:disabled):hover {
  background: var(--vf-bg-3) !important;
  color: var(--vf-text) !important;
}

/* Nav / sidebar items */
aside button:not(:disabled):hover,
nav  button:not(:disabled):hover {
  background: var(--vf-bg-2) !important;
  color: var(--vf-text) !important;
  opacity: 1;
}

/* Cards / surface buttons — lift + border glow */
.vf-card:hover,
.vf-card-elev:hover {
  border-color: var(--vf-border-strong) !important;
  transform: translateY(-1px);
  box-shadow: 0 8px 28px rgba(0,0,0,0.45);
  transition: transform 180ms var(--vf-ease), box-shadow 180ms var(--vf-ease), border-color 180ms var(--vf-ease);
}

/* Tab buttons */
.vf-tab:hover:not([aria-selected="true"]) {
  background: var(--vf-bg-3) !important;
  color: var(--vf-text) !important;
}

/* Chip / badge — subtle glow on hover */
.vf-chip:hover {
  border-color: var(--vf-border-strong) !important;
  color: var(--vf-text-2) !important;
}

/* Links */
a:hover { opacity: 0.8; }
a:active { opacity: 0.65; }

/* ============================================================
   Range Slider — Custom styling
   ============================================================ */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  background: transparent;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 3px;
  background: var(--vf-bg-4);
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0055ff 0%, #3388ff 100%);
  border: 2px solid var(--vf-bg-0);
  box-shadow: 0 2px 8px rgba(0, 85, 255, 0.4);
  margin-top: -6px;
  cursor: pointer;
  transition: transform 120ms var(--vf-ease), box-shadow 120ms var(--vf-ease);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.1);
  box-shadow: 0 2px 12px rgba(0, 85, 255, 0.6);
}

input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 3px;
  background: var(--vf-bg-4);
}

input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: linear-gradient(135deg, #0055ff 0%, #3388ff 100%);
  border: 2px solid var(--vf-bg-0);
  box-shadow: 0 2px 8px rgba(0, 85, 255, 0.4);
  cursor: pointer;
}

input[type="range"]:focus {
  outline: none;
}

input[type="range"]:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 3px rgba(0, 85, 255, 0.25), 0 2px 8px rgba(0, 85, 255, 0.4);
}