/* ===================================================================
   BRAND-REVEAL PRELOADER
   Stages: ring draws in -> fills to solid dot -> crossfades to logo mark
           -> wordmark letters reveal -> shine sweep -> 20-step fade to page
=================================================================== */

:root {
  --loader-glow: #0a5690;
  --loader-fg: #ffffff;
  --loader-fg-dim: #8a8a8a;

  /* longer total runtime */
  --loader-duration: 2000ms;

  /* darker glass */
  --glass-start: rgba(88, 69, 69, 0.026);
  --glass-end: rgba(8, 7, 7, 0);
  --glass-blur-start: 34px;

  --ease-smooth: cubic-bezier(.65, 0, .35, 1);
  --ease-out-soft: cubic-bezier(.22, 1, .36, 1);
  /* gentle deceleration, no jitter/overshoot */
}

.preloader {
  position: fixed;
  inset: 0;
  z-index: 999999;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  transition: opacity 1s ease-in-out, visibility 1s ease-in-out;
}

/* Two animations layered on the preloader:
   1) glassFade — the actual dark-glass color/blur, stepped in 20 stages
   2) glassFadeSteps — nothing visual itself, just forces the 20-step
      timing function onto glassFade via steps(20, jump-end)
*/
.preloader {
  animation: glassFade var(--loader-duration) ease-in-out forwards;
}

@keyframes glassFade {
  0% {
    background: var(--glass-start);
    backdrop-filter: blur(var(--glass-blur-start));
    -webkit-backdrop-filter: blur(var(--glass-blur-start));
  }

  100% {
    background: var(--glass-end);
    backdrop-filter: blur(0px);
    -webkit-backdrop-filter: blur(0px);
  }
}

.preloader__glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at center, rgb(9, 72, 108) 0%, rgb(3, 16, 40) 65%);
  pointer-events: none;
  animation: glowPulse 1.6s ease-in-out infinite;
}

@keyframes glowPulse {

  0%,
  100% {
    opacity: .7;
  }

  50% {
    opacity: 1;
  }
}

.preloader.is-done {
  opacity: 0;
  visibility: hidden;
}

.preloader__stage {
  position: relative;
  width: 260px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* -------------------------- stage 1+2: ring ------------------------ */
.ring {
  position: absolute;
  transform: rotate(-90deg);
  will-change: transform, opacity;
  /* fade starts exactly when the mark starts popping in → true crossfade,
     no more "both visible at once" overlap */
  animation: ringFadeOut 350ms var(--ease-smooth) forwards;
  animation-delay: 1000ms;
}

.ring__track,
.ring__fill {
  fill: none;
  stroke-width: 4;
}

.ring__track {
  stroke: rgba(255, 255, 255, .12);
}

.ring__fill {
  stroke: var(--loader-fg);
  stroke-linecap: round;
  stroke-dasharray: 214;
  stroke-dashoffset: 214;
  will-change: stroke-dashoffset;
  animation: ringDraw 900ms var(--ease-smooth) forwards;
}

@keyframes ringDraw {
  to {
    stroke-dashoffset: 0;
  }
}

.ring__dot {
  fill: var(--loader-fg);
  transform-origin: 40px 40px;
  transform: scale(0);
  will-change: transform;
  animation: dotGrow 450ms var(--ease-out-soft) forwards;
  animation-delay: 850ms;
}

@keyframes dotGrow {
  to {
    transform: scale(1);
  }
}

@keyframes ringFadeOut {
  to {
    opacity: 0;
    transform: rotate(-90deg) scale(.85);
  }
}

/* ------------------------- stage 3: logo mark ----------------------- */
.mark {
  position: absolute;
  fill: var(--loader-fg);
  opacity: 0;
  transform: scale(.6) translateX(0);
  will-change: transform, opacity;
  animation: markReveal 800ms var(--ease-out-soft) forwards 100ms;
}

@keyframes markReveal {
  40% {
    opacity: 1;
    transform: scale(1) translateX(0);
  }
  100% {
    opacity: 1;
    transform: scale(1) translateX(-80px);
  }
}

/* -------------------------- stage 4: wordmark ------------------------ */
.wordmark {
  position: absolute;
  left: 50%;
  transform: translateX(-30px);
  display: flex;
  font-size: 30px;
  font-weight: 700;
  letter-spacing: 1px;
  color: var(--loader-fg);
}

.wordmark span {
  opacity: 0;
  display: inline-block;
  transform: translateY(8px);
  will-change: transform, opacity;
  animation: letterIn 350ms var(--ease-out-soft) forwards;
  animation-delay: calc(600ms + (var(--i) * 50ms));
}

.wordmark__space {
  width: 10px;
}

.wordmark__shine {
  background: linear-gradient(100deg,
      var(--loader-fg) 40%,
      var(--loader-glow) 50%,
      var(--loader-fg) 60%);
  background-size: 220% 100%;
  background-position: 100% 0;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation:
    letterIn 350ms var(--ease-out-soft) forwards calc(800ms + (7 * 50ms)),
    shineSweep 400ms ease forwards 1400ms;
}

@keyframes letterIn {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes shineSweep {
  to {
    background-position: 0 0;
  }
}

@media (prefers-reduced-motion: reduce) {

  .preloader,
  .ring,
  .ring__fill,
  .ring__dot,
  .mark,
  .wordmark span,
  .preloader__glow,
  .preloader__progress,
  .preloader__progress-bar {
    animation: none !important;
    opacity: 1 !important;
    transform: none !important;
    background: transparent !important;
    backdrop-filter: none !important;
  }
}

/* -------------------------- stage 5: progress bar ------------------------ */
.preloader__progress {
  position: absolute;
  bottom: 40px;
  left: 5%;
  width: 90%;
  max-width: 1200px;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  overflow: hidden;
  opacity: 1;
}

@media (min-width: 1334px) {
  .preloader__progress {
    left: 50%;
    transform: translateX(-50%);
  }
}

.preloader__progress-bar {
  height: 100%;
  width: 0%;
  background: var(--loader-glow);
  box-shadow: 0 0 15px var(--loader-glow), 0 0 5px var(--loader-glow);
  will-change: width;
  animation: progressFill var(--loader-duration) var(--ease-smooth) forwards;
}

@keyframes progressFill {
  0% {
    width: 0%;
  }

  100% {
    width: 100%;
  }
}

@media (max-width: 767px) {
  :root {
    --loader-duration: 800ms;
  }
}