/* ==========================================================================
   Rotary District 3011 — site.css
   Verbatim custom CSS blocks ported from the React app's src/index.css.
   Tailwind utilities are supplied separately (Tailwind config + Preflight).
   Hex values, easings and timings are copied exactly — do NOT paraphrase.
   ========================================================================== */

:root {
  color-scheme: light;
}

html {
  height: 100%;
}

/* Body must GROW with content (min-height), not be locked to a fixed 100% height.
   It is a flex column, so a fixed height makes the browser shrink the children to
   fit — squashing the fixed-height header/contact strip on inner pages. The home
   page only escaped this because Lenis sets `html.lenis body { height: auto }`. */
body {
  min-height: 100%;
}

body {
  margin: 0;
  font-family: 'Poppins', 'Inter', system-ui, -apple-system, sans-serif;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  color: #1a2b4a;
}

/* Light-blue page with a subtle dotted texture (matches the design background) */
.page-texture {
  background-color: #eef3fb;
  background-image: radial-gradient(rgba(22, 66, 155, 0.06) 1px, transparent 1px);
  background-size: 22px 22px;
}

/* Slim custom scrollbar used inside the list cards */
.slim-scroll {
  scrollbar-width: thin;
  scrollbar-color: #c7d2e6 transparent;
}
.slim-scroll::-webkit-scrollbar {
  width: 6px;
}
.slim-scroll::-webkit-scrollbar-track {
  background: transparent;
  margin: 6px 0;
}
.slim-scroll::-webkit-scrollbar-thumb {
  background: #c7d2e6;
  border-radius: 9999px;
}
.slim-scroll::-webkit-scrollbar-thumb:hover {
  background: #a9b7ce;
}

/* Lenis smooth scrolling (see js/effects/smooth-scroll.js). */
html.lenis,
html.lenis body {
  height: auto;
}
.lenis.lenis-smooth {
  scroll-behavior: auto !important;
}
.lenis.lenis-smooth [data-lenis-prevent] {
  overscroll-behavior: contain;
}
.lenis.lenis-stopped {
  overflow: hidden;
}
.lenis.lenis-smooth iframe {
  pointer-events: none;
}

/* Header: white logo wedge. The clip-path lives on this white layer (never on
   the logo content). The blue header shows wherever the wedge is clipped away,
   so the diagonal is the white->blue transition on the left. */
/* The wedge bottom edge is fixed to the header height (Site.Master h-[70px] /
   md:h-20 = 70/80px). If you change the header height, recompute these paths or
   blue shows through below the white wedge. */
.logo-curve {
  clip-path: path('M 0 0 H 180 C 232 18, 225 62, 255 80 L 0 80 Z');
}
@media (max-width: 767px) {
  .logo-curve {
    clip-path: path('M 0 0 H 150 C 195 16, 190 54, 214 70 L 0 70 Z');
  }
}

/* Desktop nav "slot machine" hover: each letter is a 4-deep vertical reel of
   the same letter. On hover the reel scrolls down through 3 rows and decelerates
   to rest on an identical copy (so rest/end look seamless), staggered left->right
   via an inline --d delay so the reels stop one after another — jackpot style. */
.slot-text {
  display: inline-flex;
}
.slot-col {
  display: inline-block;
  height: 1.15em;
  overflow: hidden;
  line-height: 1.15;
}
.slot-col > .slot-reel {
  display: block;
  transform: translateY(0);
}
.slot-col > .slot-reel > span {
  display: block;
  height: 1.15em;
  line-height: 1.15;
  white-space: pre;
}
.slot-link:hover .slot-reel,
.slot-link:focus-visible .slot-reel {
  animation: slot-spin 0.6s cubic-bezier(0.18, 0.7, 0.12, 1) both;
  animation-delay: var(--d, 0ms);
}
@keyframes slot-spin {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-75%);
  }
}
@media (prefers-reduced-motion: reduce) {
  .slot-link:hover .slot-reel,
  .slot-link:focus-visible .slot-reel {
    animation: none;
  }
}

/* --- Entrance animations --- */

/* Cards fade + rise in on first paint. Stagger is set via inline
   animation-delay where the cards are rendered. */
@keyframes card-in {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.card-enter {
  animation: card-in 0.6s cubic-bezier(0.22, 1, 0.36, 1) both;
}

/* List rows fade + rise as they scroll into view inside a card. Scroll-driven
   where supported (Chrome 115+); elsewhere rows simply render in their final
   visible state, so content is never hidden. */
@keyframes row-in {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
@supports (animation-timeline: view()) {
  .row-animate {
    animation: row-in linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 34%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
  .card-enter,
  .row-animate {
    animation: none !important;
  }
}

/* ===========================================================================
   DOUBLE STAIRCASE PAGE TRANSITION
   Eight full-height columns split into two interlocking staircases:
   even columns = brand blue, enter from the TOP; odd columns = brand gold,
   enter from the BOTTOM. A left-to-right per-column stagger (set inline via
   animation-delay) gives the stepped staircase rhythm.

   Timing here MUST match js/effects/staircase.js:
     COLUMNS=8  SLIDE_MS=380 (--pt-slide)  STAGGER_MS=60 (inline)  HOLD_MS=90
   Overlay z-index 3000 clears the sticky header (z-1000) and modals (z-2000).
   =========================================================================== */
.pt-overlay {
  --pt-slide: 380ms;
  --pt-ease: cubic-bezier(0.22, 1, 0.36, 1);
  position: fixed;
  inset: 0;
  z-index: 3000;
  overflow: hidden;
  pointer-events: none;
}
.pt-overlay.pt-idle {
  display: none;
}
.pt-col {
  position: absolute;
  top: 0;
  bottom: 0;
  height: 100%;
  will-change: transform;
}
.pt-top {
  transform: translateY(-100%);
}
.pt-bottom {
  transform: translateY(100%);
}
.pt-blue {
  background: #16429b;
}
.pt-gold {
  background: #f5a623;
}
.pt-overlay[data-stage='cover'] .pt-top {
  animation: pt-cover-top var(--pt-slide) var(--pt-ease) both;
}
.pt-overlay[data-stage='cover'] .pt-bottom {
  animation: pt-cover-bottom var(--pt-slide) var(--pt-ease) both;
}
.pt-overlay[data-stage='reveal'] .pt-top {
  animation: pt-reveal-top var(--pt-slide) var(--pt-ease) both;
}
.pt-overlay[data-stage='reveal'] .pt-bottom {
  animation: pt-reveal-bottom var(--pt-slide) var(--pt-ease) both;
}
@keyframes pt-cover-top {
  from {
    transform: translateY(-100%);
  }
  to {
    transform: translateY(0);
  }
}
@keyframes pt-cover-bottom {
  from {
    transform: translateY(100%);
  }
  to {
    transform: translateY(0);
  }
}
@keyframes pt-reveal-top {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-100%);
  }
}
@keyframes pt-reveal-bottom {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(100%);
  }
}
@media (prefers-reduced-motion: reduce) {
  .pt-overlay,
  .pt-overlay.pt-active {
    display: none !important;
  }
  .pt-col {
    animation: none !important;
  }
}

/* CircularGallery (Our Projects) — from React CircularGallery.css */
.circular-gallery {
  width: 100%;
  height: 100%;
  overflow: hidden;
  cursor: grab;
}
.circular-gallery:active {
  cursor: grabbing;
}
.circular-gallery:focus-visible {
  outline: 2px solid #fff;
  outline-offset: 4px;
}