/* === Font Imports === */
/* Instrument Serif: "The Authority" — headlines, section titles, pull-quotes */
@import url('https://fonts.googleapis.com/css2?family=Instrument+Serif:ital@0;1&display=swap');
/* JetBrains Mono: "The Instrument" — data readouts, stat counters, HUD labels */
@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap');
/* Inter: "The Engineer" — body text, UI, navigation (already system-available, loaded for consistency) */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;900&display=swap');

@tailwind base;
@tailwind components;
@tailwind utilities;

/* === Base Layer: Global Resets & Defaults === */
@layer base {
  :root {
    font-family: 'Inter', system-ui, Avenir, Helvetica, Arial, sans-serif;
    line-height: 1.5;
    font-weight: 400;
    font-synthesis: none;
    text-rendering: optimizeLegibility;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;

    /* Crane SVG theme-aware stroke/fill tokens */
    --crane-line-strong: rgba(0, 0, 0, 0.22);
    --crane-line-medium: rgba(0, 0, 0, 0.14);
    --crane-line-subtle: rgba(0, 0, 0, 0.08);
    --crane-fill-surface: rgba(0, 0, 0, 0.04);
  }

  html, body, #root {
    height: 100%;
    margin: 0;
    padding: 0;
    width: 100%;
    background-color: #ffffff;
    color: #1a1a1a;
  }

  /* Dark mode base for landing page */
  .dark {
    background-color: #09090b;
    color: rgba(255, 255, 255, 0.92);

    --crane-line-strong: rgba(255, 255, 255, 0.16);
    --crane-line-medium: rgba(255, 255, 255, 0.10);
    --crane-line-subtle: rgba(255, 255, 255, 0.06);
    --crane-fill-surface: rgba(255, 255, 255, 0.03);
  }
}

/* === Utility Animations === */
@layer utilities {
  .animate-in {
    animation-duration: 0.5s;
    animation-timing-function: cubic-bezier(0.16, 1, 0.3, 1);
    animation-fill-mode: forwards;
  }

  .fade-in {
    opacity: 0;
    animation-name: fadeIn;
  }

  .slide-in-from-bottom-4 {
    transform: translateY(1rem);
    animation-name: slideInBottom;
  }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideInBottom {
  from {
    transform: translateY(1rem);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

/* === Scrollbar: Hidden Globally === */
* {
  -ms-overflow-style: none;
  scrollbar-width: none;
}
*::-webkit-scrollbar {
  display: none;
}

@layer utilities {
  .no-scrollbar::-webkit-scrollbar { display: none; }
  .no-scrollbar {
    -ms-overflow-style: none;
    scrollbar-width: none;
  }
}


/* === Construction Design Elements === */

/* Permit stamp — "VERIFIED" / "INSPECTED" badge treatment */
@layer components {
  .permit-stamp {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    border: 1.5px solid currentColor;
    padding: 3px 10px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 9px;
    font-weight: 700;
    letter-spacing: 0.18em;
    text-transform: uppercase;
    transform: rotate(-2deg);
    border-radius: 3px;
    opacity: 0.7;
  }
  .permit-stamp--accent {
    color: #3b82f6;
    border-color: rgba(59, 130, 246, 0.4);
  }
  .permit-stamp--verified {
    color: #10b981;
    border-color: rgba(16, 185, 129, 0.4);
  }
  .permit-stamp--danger {
    color: #ef4444;
    border-color: rgba(239, 68, 68, 0.4);
  }
}

/* Shingle divider — overlapping parallelogram pattern mimicking roof shingles */
@layer components {
  .shingle-divider {
    width: 100%;
    height: 20px;
    background:
      linear-gradient(135deg, rgba(0,0,0,0.06) 25%, transparent 25%) -24px 0,
      linear-gradient(225deg, rgba(0,0,0,0.06) 25%, transparent 25%) -24px 0,
      linear-gradient(315deg, rgba(0,0,0,0.06) 25%, transparent 25%),
      linear-gradient(45deg, rgba(0,0,0,0.06) 25%, transparent 25%);
    background-size: 48px 20px;
    background-color: transparent;
  }
  .dark .shingle-divider {
    background:
      linear-gradient(135deg, rgba(255,255,255,0.04) 25%, transparent 25%) -24px 0,
      linear-gradient(225deg, rgba(255,255,255,0.04) 25%, transparent 25%) -24px 0,
      linear-gradient(315deg, rgba(255,255,255,0.04) 25%, transparent 25%),
      linear-gradient(45deg, rgba(255,255,255,0.04) 25%, transparent 25%);
    background-size: 48px 20px;
  }
}

/* Safety stripe — diagonal hazard pattern for urgent/warning elements */
@layer components {
  .safety-stripe {
    background: repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 4px,
      rgba(245, 158, 11, 0.12) 4px,
      rgba(245, 158, 11, 0.12) 8px
    );
  }
}

/* Measurement tick marks — ruler/tape aesthetic for stat counters */
@layer components {
  .measure-ticks {
    background-image:
      repeating-linear-gradient(90deg, rgba(0,0,0,0.15) 0px, rgba(0,0,0,0.15) 1.5px, transparent 1.5px, transparent 24px),
      repeating-linear-gradient(90deg, rgba(0,0,0,0.07) 0px, rgba(0,0,0,0.07) 1px, transparent 1px, transparent 6px);
    background-size: 100% 100%, 100% 50%;
    background-repeat: no-repeat;
    background-position: bottom, bottom;
  }
  .dark .measure-ticks {
    background-image:
      repeating-linear-gradient(90deg, rgba(255,255,255,0.22) 0px, rgba(255,255,255,0.22) 1.5px, transparent 1.5px, transparent 24px),
      repeating-linear-gradient(90deg, rgba(255,255,255,0.1) 0px, rgba(255,255,255,0.1) 1px, transparent 1px, transparent 6px);
  }
  .measure-ticks-top {
    background-position: top, top;
  }
}

/* Blueprint grid — combined background-image + background-size */
@layer components {
  .blueprint-grid {
    background-image:
      linear-gradient(rgba(59,130,246,0.1) 1px, transparent 1px),
      linear-gradient(90deg, rgba(59,130,246,0.1) 1px, transparent 1px);
    background-size: 48px 48px;
  }
  .dark .blueprint-grid {
    background-image:
      linear-gradient(rgba(59,130,246,0.05) 1px, transparent 1px),
      linear-gradient(90deg, rgba(59,130,246,0.05) 1px, transparent 1px);
  }
  .blueprint-grid-fine {
    background-image:
      linear-gradient(rgba(59,130,246,0.06) 1px, transparent 1px),
      linear-gradient(90deg, rgba(59,130,246,0.06) 1px, transparent 1px),
      linear-gradient(rgba(59,130,246,0.1) 1px, transparent 1px),
      linear-gradient(90deg, rgba(59,130,246,0.1) 1px, transparent 1px);
    background-size: 12px 12px, 12px 12px, 48px 48px, 48px 48px;
  }
  .dark .blueprint-grid-fine {
    background-image:
      linear-gradient(rgba(59,130,246,0.03) 1px, transparent 1px),
      linear-gradient(90deg, rgba(59,130,246,0.03) 1px, transparent 1px),
      linear-gradient(rgba(59,130,246,0.06) 1px, transparent 1px),
      linear-gradient(90deg, rgba(59,130,246,0.06) 1px, transparent 1px);
  }
}

/* Mobile bottom sheet slide-up for Intelligence Map */
@keyframes slideUpSheet {
  from { transform: translateY(100%); }
  to { transform: translateY(0); }
}

/* Crane swing — gentle pendulum sway for suspended CTA card */
@keyframes craneSwing {
  0%, 100% { transform: rotate(0deg); }
  25% { transform: rotate(1.5deg); }
  75% { transform: rotate(-1.5deg); }
}
@layer components {
  .crane-swing {
    animation: craneSwing 4s ease-in-out infinite;
    transform-origin: top center;
  }
  .crane-swing:hover {
    animation-play-state: paused;
  }
}

/* === Attribution (existing, preserved) === */
@layer utilities {
  .attribution-ghost,
  .content-ref-x7,
  .sys-ref-x7,
  .nav-meta-z3,
  .route-sig-m1 {
    display: inline-block;
    opacity: 0;
    font-size: 1px;
    color: transparent;
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    user-select: text;
    pointer-events: none;
    z-index: -1;
  }

  .attribution-reveal {
    color: transparent;
    background: transparent;
    user-select: text;
  }
  .attribution-reveal::selection {
    background: #3b82f6;
    color: white;
  }
}