/* ═══════════════════════════════════════════
   KFINDER — Visual FX layer
   ═══════════════════════════════════════════ */

/* Scroll progress */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  width: 0%;
  background: linear-gradient(90deg, var(--red-deep), var(--red), #ff4444);
  z-index: 9999;
  box-shadow: 0 0 12px var(--red-glow), 0 0 24px rgba(255,85,85,0.3);
  transition: width 0.05s linear;
}

/* Custom cursor (desktop) */
body.fx-cursor { cursor: none; }
body.fx-cursor a,
body.fx-cursor button,
body.fx-cursor input { cursor: none; }

.cursor-dot,
.cursor-ring,
.cursor-glow {
  position: fixed;
  top: 0;
  left: 0;
  pointer-events: none;
  z-index: 9998;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  will-change: transform;
}

.cursor-dot {
  width: 6px;
  height: 6px;
  background: #fff;
  mix-blend-mode: difference;
  transition: width 0.25s var(--ease-spring), height 0.25s var(--ease-spring), opacity 0.2s;
}

.cursor-ring {
  width: 36px;
  height: 36px;
  border: 1.5px solid rgba(255, 85, 85, 0.55);
  transition: width 0.35s var(--ease-spring), height 0.35s var(--ease-spring), border-color 0.2s, opacity 0.2s;
}

.cursor-glow {
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(255,60,60,0.14) 0%, transparent 65%);
  transition: opacity 0.3s;
  z-index: 0;
}

body.fx-cursor.is-hover .cursor-dot {
  width: 10px;
  height: 10px;
  background: var(--red);
  mix-blend-mode: normal;
}

body.fx-cursor.is-hover .cursor-ring {
  width: 52px;
  height: 52px;
  border-color: var(--red);
  box-shadow: 0 0 20px var(--red-glow);
}

body.fx-cursor.is-click .cursor-ring {
  width: 28px;
  height: 28px;
}

/* Canvas particles */
#particles {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.35;
}

/* Aurora ribbons */
.aurora {
  position: absolute;
  inset: -50%;
  opacity: 0.12;
  filter: blur(80px);
  animation: auroraShift 20s ease-in-out infinite;
}

.aurora-1 {
  background: conic-gradient(from 180deg at 50% 50%, transparent, rgba(255,26,26,0.4) 20%, transparent 40%, rgba(120,0,0,0.3) 60%, transparent 80%);
  animation-duration: 22s;
}

.aurora-2 {
  background: conic-gradient(from 0deg at 30% 70%, transparent, rgba(255,26,26,0.25) 25%, transparent 50%);
  animation-duration: 28s;
  animation-delay: -7s;
  opacity: 0.08;
}

@keyframes auroraShift {
  0%, 100% { transform: rotate(0deg) scale(1); }
  50%       { transform: rotate(180deg) scale(1.15); }
}

/* Light beams */
.beams {
  position: absolute;
  inset: 0;
  overflow: hidden;
  opacity: 0.4;
}

.beam {
  position: absolute;
  width: 2px;
  height: 120%;
  top: -10%;
  background: linear-gradient(to bottom, transparent, rgba(255,85,85,0.35), transparent);
  animation: beamDrift 8s ease-in-out infinite;
  opacity: 0.25;
}

.beam:nth-child(1) { left: 15%; animation-delay: 0s; }
.beam:nth-child(2) { left: 45%; animation-delay: -2.5s; opacity: 0.35; }
.beam:nth-child(3),
.beam:nth-child(4) {
  display: none;
}

@keyframes beamDrift {
  0%, 100% { transform: translateY(0) scaleY(1); opacity: 0.3; }
  50%       { transform: translateY(-5%) scaleY(1.1); opacity: 0.7; }
}

/* Page load curtain */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s var(--ease), visibility 0.6s;
}

.page-loader.done {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-logo-img {
  width: 72px;
  height: 72px;
  object-fit: contain;
  background: transparent;
  mix-blend-mode: screen;
  animation: loaderLogoPulse 1.1s ease-in-out infinite;
}

@keyframes loaderLogoPulse {
  0%, 100% {
    transform: scale(1);
    filter: drop-shadow(0 0 16px rgba(255, 26, 26, 0.5));
  }
  50% {
    transform: scale(1.06);
    filter: drop-shadow(0 0 36px rgba(255, 26, 26, 0.95));
  }
}

.loader-logo {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 600;
  background: linear-gradient(135deg, var(--red), #ff4444);
  background-size: 200% 200%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 1.5s ease infinite, loaderPulse 1s ease infinite;
}

@keyframes loaderPulse {
  0%, 100% { transform: scale(1); filter: drop-shadow(0 0 20px var(--red-glow)); }
  50%       { transform: scale(1.05); filter: drop-shadow(0 0 40px var(--red-glow)); }
}

@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

/* Hero brand effects */
.hero-title {
  position: relative;
}

/* ── Hero logo 3D scene ── */
.hero-logo-stage {
  cursor: default;
  user-select: none;
  -webkit-user-select: none;
  overflow: visible;
  padding: 0.5rem 0 0;
  box-sizing: border-box;
}

.hero-logo-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
}

.hero-logo-scene {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: 280px;
  perspective: 1100px;
  perspective-origin: 50% 46%;
  transform-style: preserve-3d;
  z-index: 1;
}

.hero-logo-ambient {
  position: absolute;
  left: 50%;
  top: 40%;
  width: 70%;
  height: 65%;
  transform: translate(-50%, -50%);
  background: radial-gradient(
    ellipse 45% 40% at 50% 50%,
    rgba(255, 26, 26, 0.07) 0%,
    rgba(255, 26, 26, 0.02) 45%,
    transparent 70%
  );
  opacity: 0.75;
  pointer-events: none;
  z-index: 0;
  transition: transform 0.6s ease-out;
}

.hero-logo-rig {
  position: absolute;
  inset: 0;
  transform-style: preserve-3d;
  will-change: transform;
  z-index: 1;
}

.hero-logo-glow {
  position: absolute;
  left: 50%;
  top: 42%;
  width: 42%;
  height: 48%;
  margin: -24% 0 0 -21%;
  border-radius: 50%;
  background: radial-gradient(
    ellipse 50% 55% at 50% 48%,
    rgba(255, 60, 60, 0.14) 0%,
    rgba(255, 26, 26, 0.04) 50%,
    transparent 72%
  );
  filter: blur(28px);
  opacity: 0.65;
  transform: translateZ(-50px);
  pointer-events: none;
  transition: transform 0.5s ease-out;
}

.hero-logo-body {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transform: translateY(2%) translateZ(50px);
  transform-style: preserve-3d;
  transition: opacity 1.1s ease, transform 1.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.hero-logo-stage:not(.is-ready) .hero-logo-body {
  opacity: 0;
  transform: translateY(2%) translateZ(50px) scale(0.6);
  filter: blur(6px);
}

.hero-logo-stage.is-ready .hero-logo-body {
  opacity: 1;
  transform: translateY(2%) translateZ(50px) scale(1);
  filter: blur(0);
}

.hero-logo-body .hero-logo-img {
  width: 78%;
  height: 78%;
  object-fit: contain;
  background: transparent;
  mix-blend-mode: screen;
  pointer-events: none;
  will-change: filter;
}

.hero-logo-reflect {
  position: absolute;
  left: 50%;
  top: 58%;
  width: 52%;
  height: 22%;
  margin-left: -26%;
  overflow: hidden;
  pointer-events: none;
  z-index: 2;
  transition: transform 0.5s ease-out, opacity 0.4s ease;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.28) 0%, transparent 90%);
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.28) 0%, transparent 90%);
}

.hero-logo-reflect img {
  width: 100%;
  height: auto;
  transform: scaleY(-1);
  opacity: 0.16;
  object-fit: contain;
  mix-blend-mode: screen;
  filter: blur(1px);
}

.hero-logo-floor {
  position: absolute;
  left: 50%;
  bottom: 10%;
  width: 62%;
  height: 32%;
  margin-left: -31%;
  transform: rotateX(84deg) translateZ(-80px);
  transform-origin: center top;
  transform-style: preserve-3d;
  background: radial-gradient(ellipse at 50% 0%, rgba(255, 26, 26, 0.07) 0%, transparent 58%);
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

/* Animated card border beam — subtle */
.card {
  position: relative;
  isolation: isolate;
}

.card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: conic-gradient(from var(--beam-angle, 0deg), transparent 40%, var(--red) 50%, transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s;
  pointer-events: none;
  z-index: 2;
}

.card:hover::after {
  opacity: 1;
  animation: borderSpin 3s linear infinite;
}

@keyframes borderSpin {
  to { --beam-angle: 360deg; }
}

@property --beam-angle {
  syntax: "<angle>";
  initial-value: 0deg;
  inherits: false;
}

/* Shimmer sweep on cards */
.card-shimmer {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  overflow: hidden;
  pointer-events: none;
  z-index: 1;
}

.card-shimmer::before {
  content: "";
  position: absolute;
  top: 0;
  left: -100%;
  width: 60%;
  height: 100%;
  background: linear-gradient(105deg, transparent 30%, rgba(255,255,255,0.06) 50%, transparent 70%);
  transition: left 0.6s var(--ease);
}

.card:hover .card-shimmer::before {
  left: 150%;
  transition: left 0.8s var(--ease);
}

/* Floating particles (CSS) */
.float-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.float-particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: var(--red);
  border-radius: 50%;
  opacity: 0;
  box-shadow: 0 0 6px var(--red-glow);
  animation: floatUp linear infinite;
}

@keyframes floatUp {
  0%   { opacity: 0; transform: translateY(100vh) scale(0); }
  10%  { opacity: 0.8; }
  90%  { opacity: 0.4; }
  100% { opacity: 0; transform: translateY(-10vh) scale(1); }
}

/* Stat counter glow */
.stat-num {
  transition: text-shadow 0.3s;
}

.stat:hover .stat-num {
  text-shadow: 0 0 20px var(--red-glow);
  color: var(--red);
}

/* Ripple click */
.ripple-host { position: relative; overflow: hidden; }

.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 26, 26, 0.35);
  transform: scale(0);
  animation: rippleAnim 0.6s ease-out forwards;
  pointer-events: none;
}

@keyframes rippleAnim {
  to { transform: scale(4); opacity: 0; }
}

/* Magnetic btn glow */
.os-btn, .btn-dl, .filter-btn {
  position: relative;
  overflow: hidden;
}

/* Search typing glow */
.search-box.typing {
  box-shadow: 0 0 0 4px rgba(255,85,85,0.08), 0 0 40px rgba(255,85,85,0.15), 0 16px 48px rgba(0,0,0,0.35);
}

/* Nav link underline — hover only, not on active */
.nav-links a {
  position: relative;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--red);
  border-radius: 1px;
  transition: width 0.25s var(--ease);
}

.nav-links a:hover:not(.active)::after {
  width: 50%;
}

.nav-links a.active::after {
  display: none;
}

/* Group open glow */
.group.open {
  box-shadow: 0 0 30px rgba(255,85,85,0.08), inset 0 1px 0 rgba(255,85,85,0.1);
}

/* Result hover slide */
.result {
  transform: translateX(0);
  transition: transform 0.25s var(--ease), background 0.2s, border-color 0.2s;
}
.result:hover {
  transform: translateX(6px);
}

/* Donate banner shimmer */
.donate-inner {
  position: relative;
  overflow: hidden;
}

.donate-inner::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(105deg, transparent 40%, rgba(255,85,85,0.08) 50%, transparent 60%);
  animation: donateShimmer 4s ease-in-out infinite;
}

@keyframes donateShimmer {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}

/* Text wiggle removed — cleaner hero */

/* Vignette */
.vignette {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background: radial-gradient(ellipse at center, transparent 50%, rgba(0,0,0,0.7) 100%);
}

/* Disable heavy FX on mobile / reduced motion */
@media (max-width: 768px), (pointer: coarse) {
  .cursor-dot, .cursor-ring, .cursor-glow { display: none !important; }
  body.fx-cursor { cursor: auto; }
  body.fx-cursor a, body.fx-cursor button, body.fx-cursor input { cursor: pointer; }
  #particles { opacity: 0.4; }
  .beams { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .aurora, .beam, .float-particle, .loader-logo, .loader-logo-img,
  .hero-accent, .donate-inner::before,
  .nav-logo-glow, .nav-logo-img, .nav-logo-tilt, .footer-logo-img,
  .hero-logo-canvas, .hero-logo-body { animation: none !important; }
  .hero-logo-stage.is-ready .hero-logo-body { opacity: 1; transform: translateY(2%) translateZ(50px) scale(1); filter: none; transition: none; }
  .nav-logo-wrap.is-entered .nav-logo-tilt { opacity: 1; transform: none; }
  .card::after { animation: none !important; }
}