/*
 * STRIKE - Loading Screen
 * Splash Screen with Animated Logo
 */

/* ============================================
 * TABLE OF CONTENTS
 * ============================================
 * 
 * 1. LOADER CONTAINER
 * 2. ANIMATED LOGO
 * 3. TACTICAL SUBTITLE
 * 4. COUNTDOWN TIMER
 * 5. PROGRESS BAR
 * 6. LOADING STATUS TEXT
 * 7. TACTICAL GRID BACKGROUND
 * 8. CORNER BRACKETS
 * 9. FADE OUT ANIMATION
 * 10. CONTENT REVEAL
 * 11. RESPONSIVE DESIGN
 * 
 * ============================================ */

/* ============================================
 * 1. LOADER CONTAINER
 * ============================================ */

/* #LOADER CONTAINER */
.loader-wrapper {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--color-bg);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 9999;
  animation: fadeOut 0.8s ease-out 3.5s forwards;
}

.loader-wrapper::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0.2) 0px,
    rgba(0, 0, 0, 0.2) 1px,
    transparent 1px,
    transparent 3px
  );
  pointer-events: none;
  opacity: 0.3;
  z-index: 1;
}

.loader-content {
  position: relative;
  z-index: 2;
  text-align: center;
}

/* #ANIMATED LOGO */
.loader-logo {
  font-family: var(--font-heading);
  font-size: clamp(3rem, 10vw, 6rem);
  font-weight: 900;
  color: var(--color-primary);
  text-shadow: 0 0 20px var(--color-primary),
               0 0 40px var(--color-primary),
               0 0 60px var(--color-primary);
  letter-spacing: 1rem;
  margin-bottom: 2rem;
  animation: logoGlow 2s ease-in-out infinite,
             logoScale 0.8s ease-out;
}

@keyframes logoGlow {
  0%, 100% {
    text-shadow: 0 0 20px var(--color-primary),
                 0 0 40px var(--color-primary),
                 0 0 60px var(--color-primary);
    opacity: 1;
  }
  50% {
    text-shadow: 0 0 30px var(--color-primary),
                 0 0 60px var(--color-primary),
                 0 0 90px var(--color-primary);
    opacity: 0.9;
  }
}

@keyframes logoScale {
  0% {
    transform: scale(0);
    opacity: 0;
  }
  50% {
    transform: scale(1.1);
  }
  100% {
    transform: scale(1);
    opacity: 1;
  }
}

/* #TACTICAL SUBTITLE */
.loader-subtitle {
  font-family: var(--font-body);
  font-size: clamp(0.9rem, 2vw, 1.2rem);
  color: var(--color-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5rem;
  margin-bottom: 3rem;
  opacity: 0;
  animation: fadeInUp 0.6s ease-out 0.4s forwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* #COUNTDOWN TIMER */
.loader-countdown {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeInUp 0.6s ease-out 0.6s forwards;
}

.countdown-label {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
}

.countdown-number {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 900;
  color: var(--color-primary);
  text-shadow: 0 0 10px var(--color-primary);
  min-width: 60px;
  position: relative;
  animation: countdownPulse 1s ease-in-out infinite;
}

/* Hide the original text content */
.countdown-number {
  color: transparent;
  text-shadow: none;
}

/* Show 3, then 2, then 1 using ::after pseudo-element */
.countdown-number::after {
  content: '3';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  color: var(--color-primary);
  text-shadow: 0 0 10px var(--color-primary);
  animation: countdownChange 3.5s steps(1, end) forwards;
}

@keyframes countdownChange {
  0%, 32.9% {
    content: '3';
  }
  33%, 65.9% {
    content: '2';
  }
  66%, 99.9% {
    content: '1';
  }
  100% {
    content: '0';
    opacity: 0;
  }
}

@keyframes countdownPulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.1);
  }
}

/* #PROGRESS BAR */
.loader-progress {
  width: 300px;
  max-width: 80%;
  height: 4px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
  opacity: 0;
  animation: fadeInUp 0.6s ease-out 0.8s forwards;
  margin: 0 auto;
}

.progress-bar {
  position: absolute;
  top: 0;
  left: 0;
  height: 100%;
  background: linear-gradient(90deg, 
    var(--color-secondary) 0%,
    var(--color-primary) 50%,
    var(--color-secondary) 100%);
  background-size: 200% 100%;
  width: 0%;
  animation: progressFill 3s ease-out forwards,
             progressGlow 1.5s ease-in-out infinite;
  box-shadow: 0 0 20px var(--color-secondary);
}

@keyframes progressFill {
  0% {
    width: 0%;
  }
  100% {
    width: 100%;
  }
}

@keyframes progressGlow {
  0%, 100% {
    background-position: 0% 50%;
    box-shadow: 0 0 20px var(--color-secondary);
  }
  50% {
    background-position: 100% 50%;
    box-shadow: 0 0 30px var(--color-primary);
  }
}

/* #LOADING STATUS TEXT */
.loader-status {
  font-family: var(--font-body);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-top: 1.5rem;
  opacity: 0;
  animation: fadeInUp 0.6s ease-out 1s forwards,
             statusBlink 2s ease-in-out 1.5s infinite;
}

@keyframes statusBlink {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.4;
  }
}

/* #TACTICAL GRID BACKGROUND */
.loader-grid {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  opacity: 0.1;
  z-index: 0;
  background-image: 
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 50px 50px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% {
    transform: translate(0, 0);
  }
  100% {
    transform: translate(50px, 50px);
  }
}

/* #CORNER BRACKETS */
.loader-brackets {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
  opacity: 0;
  animation: fadeInUp 0.6s ease-out 1.2s forwards;
}

.bracket {
  position: absolute;
  width: 100px;
  height: 100px;
  border: 2px solid var(--color-secondary);
}

.bracket-tl {
  top: 5%;
  left: 5%;
  border-right: none;
  border-bottom: none;
  animation: bracketScan 2s ease-in-out infinite;
}

.bracket-tr {
  top: 5%;
  right: 5%;
  border-left: none;
  border-bottom: none;
  animation: bracketScan 2s ease-in-out 0.5s infinite;
}

.bracket-bl {
  bottom: 5%;
  left: 5%;
  border-right: none;
  border-top: none;
  animation: bracketScan 2s ease-in-out 1s infinite;
}

.bracket-br {
  bottom: 5%;
  right: 5%;
  border-left: none;
  border-top: none;
  animation: bracketScan 2s ease-in-out 1.5s infinite;
}

@keyframes bracketScan {
  0%, 100% {
    opacity: 0.3;
    transform: scale(1);
  }
  50% {
    opacity: 1;
    transform: scale(1.05);
  }
}

/* #FADE OUT ANIMATION */
@keyframes fadeOut {
  0% {
    opacity: 1;
    visibility: visible;
  }
  100% {
    opacity: 0;
    visibility: hidden;
  }
}

/* #CONTENT REVEAL */
.page-content {
  opacity: 0;
  animation: contentFadeIn 0.8s ease-out 3.8s forwards;
  position: relative;
  isolation: isolate;
}

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

/* #RESPONSIVE */
@media (max-width: 768px) {
  .loader-logo {
    font-size: clamp(2rem, 12vw, 4rem);
    letter-spacing: 0.5rem;
  }

  .loader-subtitle {
    font-size: clamp(0.7rem, 3vw, 1rem);
    letter-spacing: 0.3rem;
  }

  .countdown-number {
    font-size: 2rem;
    min-width: 50px;
  }

  .loader-progress {
    width: 250px;
  }

  .bracket {
    width: 60px;
    height: 60px;
  }

  .bracket-tl,
  .bracket-tr {
    top: 10%;
  }

  .bracket-bl,
  .bracket-br {
    bottom: 10%;
  }

  .bracket-tl,
  .bracket-bl {
    left: 5%;
  }

  .bracket-tr,
  .bracket-br {
    right: 5%;
  }
}

@media (max-width: 480px) {
  .loader-logo {
    letter-spacing: 0.3rem;
  }

  .loader-subtitle {
    letter-spacing: 0.2rem;
  }

  .loader-progress {
    width: 200px;
  }

  .bracket {
    width: 40px;
    height: 40px;
  }
}