/* FlowFire Defense — design tokens & base styles */

:root {
  /* Surfaces */
  --ff-bg: #0A0A0A;
  --ff-surface: #141414;
  --ff-surface-2: #1C1C1C;
  --ff-surface-3: #232323;
  --ff-border: #2A2A2A;
  --ff-border-strong: #383838;

  /* Text */
  --ff-text: #F5F5F5;
  --ff-text-2: #A1A1A1;
  --ff-text-3: #6B6B6B;

  /* Accent */
  --ff-orange: #C8410D;
  --ff-orange-hover: #E04E15;
  --ff-orange-dim: rgba(200, 65, 13, 0.12);

  /* Status */
  --ff-success: #4ADE80;
  --ff-warning: #F59E0B;

  /* Type */
  --ff-display: "Space Grotesk", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --ff-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --ff-mono: "JetBrains Mono", "SF Mono", ui-monospace, Menlo, monospace;

  /* Motion */
  --ff-ease: cubic-bezier(0.32, 0.72, 0.32, 1);
  --ff-ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  /* Safe areas */
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

[data-theme="light"] {
  --ff-bg: #F5F4F1;
  --ff-surface: #FFFFFF;
  --ff-surface-2: #F0EFEC;
  --ff-surface-3: #E8E7E3;
  --ff-border: #DCDAD4;
  --ff-border-strong: #C5C2BA;
  --ff-text: #0A0A0A;
  --ff-text-2: #525252;
  --ff-text-3: #8B8881;
  --ff-orange-dim: rgba(200, 65, 13, 0.08);
}

* { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  background: var(--ff-bg);
  color: var(--ff-text);
  font-family: var(--ff-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

button { font-family: inherit; }

/* Subtle film-grain noise overlay (3% opacity) */
.ff-noise::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.04;
  background-image: url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='160' height='160'><filter id='n'><feTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/><feColorMatrix values='0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0.6 0'/></filter><rect width='100%25' height='100%25' filter='url(%23n)'/></svg>");
  mix-blend-mode: overlay;
  z-index: 1;
}

/* Hide scrollbars in horizontal carousels */
.no-scrollbar { scrollbar-width: none; -ms-overflow-style: none; }
.no-scrollbar::-webkit-scrollbar { display: none; }

/* Mono numerals for prices, specs */
.mono { font-family: var(--ff-mono); font-feature-settings: "tnum"; }

/* Display headlines: tight tracking */
.display { font-family: var(--ff-display); letter-spacing: -0.02em; font-weight: 600; }

/* Eyebrow / label small caps */
.eyebrow {
  font-family: var(--ff-mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ff-text-2);
  font-weight: 500;
}

/* Buttons */
.btn {
  appearance: none;
  border: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  font-family: var(--ff-body);
  font-weight: 500;
  font-size: 15px;
  letter-spacing: -0.01em;
  border-radius: 4px;
  cursor: pointer;
  transition: background 200ms var(--ff-ease), border-color 200ms var(--ff-ease), color 200ms var(--ff-ease);
  min-height: 48px;
  text-decoration: none;
}
.btn-primary {
  background: var(--ff-orange);
  color: #fff;
}
.btn-primary:hover { background: var(--ff-orange-hover); }
.btn-primary:active { background: #B5390B; }

.btn-secondary {
  background: transparent;
  color: var(--ff-text);
  border: 1px solid var(--ff-border-strong);
}
.btn-secondary:hover { border-color: var(--ff-orange); color: var(--ff-orange); }

.btn-ghost {
  background: transparent;
  color: var(--ff-text);
  border: none;
}
.btn-ghost:hover { color: var(--ff-orange); }

/* Hairline divider */
.hairline {
  height: 1px;
  background: var(--ff-border);
  border: none;
}

/* Card */
.card {
  background: var(--ff-surface);
  border: 1px solid var(--ff-border);
  border-radius: 6px;
  transition: border-color 200ms var(--ff-ease);
}
.card:hover { border-color: var(--ff-border-strong); }

/* Press feedback */
.tap { transition: transform 120ms var(--ff-ease), opacity 120ms var(--ff-ease); }
.tap:active { transform: scale(0.97); opacity: 0.85; }

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--ff-orange);
  outline-offset: 2px;
}

/* Scroll snap utility */
.snap-x { scroll-snap-type: x mandatory; }
.snap-start { scroll-snap-align: start; }

/* Skeleton shimmer (for image placeholders) */
@keyframes ff-shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
.shimmer {
  background: linear-gradient(90deg, var(--ff-surface) 0%, var(--ff-surface-2) 50%, var(--ff-surface) 100%);
  background-size: 200% 100%;
  animation: ff-shimmer 2s linear infinite;
}

/* Drawer / sheet shared */
.scrim {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 50;
}

/* Transitions for panels */
.slide-up-enter {
  transform: translateY(100%);
}
.slide-up-active {
  transform: translateY(0);
  transition: transform 320ms var(--ff-ease-out);
}
.slide-right-enter { transform: translateX(100%); }
.slide-right-active { transform: translateX(0); transition: transform 280ms var(--ff-ease-out); }

/* Prevent iOS auto-zoom on focus */
input, textarea, select { font-size: 16px; }

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