/* ===================================================================
   EMETFORGE — minimal · dark · water hover
   =================================================================== */

:root {
  --bg-0:        #04060a;
  --bg-1:        #07090f;

  --line-soft:   rgba(180, 220, 255, 0.035);

  --water-1:     #aef0ff;
  --water-2:     #5cc8ff;
  --water-3:     #1f8fd9;
  --water-4:     #0c4a73;
  --water-glow:  rgba(92, 200, 255, 0.55);

  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
  height: 100%;
  width: 100%;
  background: var(--bg-0);
  color: #e8e8f0;
  font-family: 'Orbitron', system-ui, sans-serif;
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

body {
  min-height: 100vh;
  position: relative;
  background:
    radial-gradient(ellipse at 25% 15%, rgba(0, 217, 255, 0.05), transparent 60%),
    radial-gradient(ellipse at 80% 85%, rgba(50, 100, 200, 0.04), transparent 60%),
    linear-gradient(180deg, var(--bg-1) 0%, var(--bg-0) 60%, #000 100%);
}

.defs-only {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* === Background layers ============================================ */
#particle-canvas {
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

.vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background:
    radial-gradient(ellipse at center, transparent 25%, rgba(0, 0, 0, 0.55) 80%, rgba(0, 0, 0, 0.95) 100%);
}

.grid-overlay {
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background-image:
    linear-gradient(var(--line-soft) 1px, transparent 1px),
    linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 75%);
  opacity: 0.5;
}

.scanlines {
  position: fixed;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(255, 255, 255, 0.012) 0px,
    rgba(255, 255, 255, 0.012) 1px,
    transparent 1px,
    transparent 3px
  );
  opacity: 0.6;
  mix-blend-mode: overlay;
}

/* === Stage ======================================================== */
.stage {
  position: relative;
  z-index: 5;
  width: 100%;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

/* === Logo stack (logo + EKG overlay) ============================== */
.logo-stack {
  position: relative;
  display: inline-block;
  opacity: 0;
  transform: translateY(14px);
  animation: fadeIn 1.6s var(--ease-out) 0.2s forwards;
}

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

/* === Logo ========================================================= */
.logo {
  position: relative;
  font-family: 'Orbitron', sans-serif;
  font-weight: 900;
  font-size: clamp(44px, 13vw, 200px);
  letter-spacing: 0.05em;
  line-height: 1;
  cursor: pointer;
  user-select: none;
  text-align: center;
  white-space: nowrap;

  /* glow halo (inherited by spans for their text-shadow) */
  text-shadow:
    0 0 18px rgba(92, 200, 255, 0.18),
    0 0 60px rgba(31, 143, 217, 0.08);

  transition:
    text-shadow 0.6s var(--ease-out),
    transform 0.6s var(--ease-out);
}

/* === Logo letter spans (EMET / FORGE) ============================= */
.logo__emet,
.logo__forge {
  display: inline-block;
  background:
    linear-gradient(
      180deg,
      var(--water-1) 0%,
      var(--water-2) 35%,
      var(--water-3) 70%,
      var(--water-4) 100%
    );
  background-size: 100% 220%;
  background-position: 0% 30%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;

  filter: url(#water-idle);
  animation: drift 9s ease-in-out infinite;
  transition:
    filter 0.6s var(--ease-out),
    background-position 0.8s var(--ease-out),
    transform 0.4s var(--ease-out);
}

@keyframes drift {
  0%, 100% { background-position: 0% 30%; }
  50%      { background-position: 0% 65%; }
}

/* hover anywhere on the logo → stronger water + glow */
.logo:hover .logo__emet,
.logo:hover .logo__forge {
  filter: url(#water-hover);
  background-position: 0% 90%;
}

.logo:hover {
  text-shadow:
    0 0 24px rgba(174, 240, 255, 0.5),
    0 0 60px rgba(92, 200, 255, 0.45),
    0 0 120px rgba(31, 143, 217, 0.25);
  transform: scale(1.012);
}

/* hover specifically on EMET → heartbeat pulse + red life-glow */
.logo__emet:hover {
  animation:
    drift 9s ease-in-out infinite,
    heartbeat 1.4s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes heartbeat {
  0%, 100% {
    transform: scale(1);
    text-shadow:
      0 0 14px rgba(255, 70, 110, 0.35),
      0 0 40px rgba(255, 70, 110, 0.15);
  }
  8% {
    transform: scale(1.07);
    text-shadow:
      0 0 28px rgba(255, 80, 120, 0.95),
      0 0 70px rgba(255, 70, 110, 0.7),
      0 0 130px rgba(255, 100, 140, 0.45);
  }
  18% {
    transform: scale(0.99);
    text-shadow:
      0 0 18px rgba(255, 70, 110, 0.5),
      0 0 50px rgba(255, 70, 110, 0.25);
  }
  32% {
    transform: scale(1.04);
    text-shadow:
      0 0 24px rgba(255, 80, 120, 0.8),
      0 0 60px rgba(255, 70, 110, 0.5);
  }
  44% {
    transform: scale(1);
    text-shadow:
      0 0 14px rgba(255, 70, 110, 0.4),
      0 0 40px rgba(255, 70, 110, 0.2);
  }
}

/* click — chaotic wave shock through the letters */
.logo.is-shocked .logo__emet,
.logo.is-shocked .logo__forge,
.logo.is-shocked:hover .logo__emet,
.logo.is-shocked:hover .logo__forge {
  filter: url(#water-shock);
}

.logo.is-shocked,
.logo.is-shocked:hover {
  text-shadow:
    0 0 40px rgba(174, 240, 255, 0.85),
    0 0 90px rgba(92, 200, 255, 0.65),
    0 0 160px rgba(31, 143, 217, 0.4);
  animation: logoShock 1.05s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes logoShock {
  0%   { transform: scale(1)     skewX(0deg); }
  8%   { transform: scale(1.08)  skewX(-1.2deg); }
  18%  { transform: scale(0.965) skewX(0.9deg); }
  30%  { transform: scale(1.045) skewX(-0.6deg); }
  44%  { transform: scale(0.985) skewX(0.4deg); }
  60%  { transform: scale(1.025) skewX(-0.2deg); }
  78%  { transform: scale(0.995) skewX(0.1deg); }
  100% { transform: scale(1)     skewX(0deg); }
}

/* === ECG / heartbeat overlay on EMET ============================== */
.ekg {
  position: absolute;
  pointer-events: none;
  opacity: 0;
  z-index: 6;
  overflow: visible;
  transition: opacity 0.45s var(--ease-out);
}

.ekg__bg,
.ekg__path {
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
  vector-effect: non-scaling-stroke;
}

.ekg__bg {
  stroke: rgba(255, 70, 110, 0.18);
  stroke-width: 1;
}

.ekg__path {
  stroke: #ff466e;
  stroke-width: 2.4;
  stroke-dasharray: 0.18 1;
  stroke-dashoffset: 1.18;
  filter:
    drop-shadow(0 0 3px #ff466e)
    drop-shadow(0 0 10px rgba(255, 70, 110, 0.75))
    drop-shadow(0 0 22px rgba(255, 70, 110, 0.5));
}

.logo-stack:has(.logo__emet:hover) .ekg {
  opacity: 1;
}

.logo-stack:has(.logo__emet:hover) .ekg__path {
  animation: ekg-sweep 1.4s linear infinite;
}

@keyframes ekg-sweep {
  0%   { stroke-dashoffset: 1.18; }
  100% { stroke-dashoffset: -0.18; }
}

/* === Cursor ripple (drop in water) ================================ */
.ripple {
  position: fixed;
  top: 0;
  left: 0;
  width: 14px;
  height: 14px;
  pointer-events: none;
  z-index: 4;
  border-radius: 50%;
  transform: translate(-50%, -50%) scale(0.2);
  opacity: 0;
  background: radial-gradient(
    circle,
    rgba(174, 240, 255, 0.55) 0%,
    rgba(92, 200, 255, 0.3) 35%,
    rgba(31, 143, 217, 0) 70%
  );
  box-shadow:
    0 0 0 1px rgba(174, 240, 255, 0.4),
    0 0 24px rgba(92, 200, 255, 0.4);
  transition: none;
}

.ripple.is-active {
  animation: rippleOut 1.1s var(--ease-out) forwards;
}

@keyframes rippleOut {
  0%   { opacity: 0.85; transform: translate(-50%, -50%) scale(0.2); }
  100% { opacity: 0;    transform: translate(-50%, -50%) scale(28); }
}

/* === Shockwave (click → expanding wave through the whole site) ==== */
.shockwave {
  position: fixed;
  top: 0;
  left: 0;
  width: 24px;
  height: 24px;
  pointer-events: none;
  z-index: 4;
  border-radius: 50%;
  border: 2px solid rgba(174, 240, 255, 0.65);
  box-shadow:
    0 0 22px rgba(92, 200, 255, 0.55),
    inset 0 0 22px rgba(174, 240, 255, 0.45);
  background:
    radial-gradient(circle, transparent 55%, rgba(92, 200, 255, 0.07) 78%, transparent 100%);
  transform: translate(-50%, -50%) scale(0.1);
  opacity: 0;
  animation: shockwaveOut 1.4s cubic-bezier(0.22, 1, 0.36, 1) forwards;
}

.shockwave--echo {
  animation-delay: 0.18s;
  border-color: rgba(92, 200, 255, 0.45);
}

@keyframes shockwaveOut {
  0%   { opacity: 0.9; transform: translate(-50%, -50%) scale(0.1); border-width: 3px; }
  60%  { opacity: 0.4; }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(38); border-width: 0.5px; }
}

/* === Reduced motion =============================================== */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
  .logo { filter: none; }
  .logo:hover { filter: none; }
}