/* Stream Alert Pro - Alert Display Styles */

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

body {
  background: transparent;
  overflow: hidden;
  width: 100vw;
  height: 100vh;
  font-family: 'Noto Sans JP', sans-serif;
}

#alert-container {
  position: relative;
  width: 100%;
  height: 100%;
}

#particles-container {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
}

#alert-stage {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 1;
  pointer-events: none;
}

/* ── Alert Box ── */
.alert-box {
  position: absolute;
  pointer-events: none;
  will-change: transform, opacity;
  width: 600px;
  min-height: 150px;
}

/* ── Position Classes ── */
.pos-top-left      { top: 5%; left: 5%; }
.pos-top-center    { top: 5%; left: 50%; transform: translateX(-50%); }
.pos-top-right     { top: 5%; right: 5%; }
.pos-middle-left   { top: 50%; left: 5%; transform: translateY(-50%); }
.pos-middle-center { top: 50%; left: 50%; transform: translate(-50%, -50%); }
.pos-middle-right  { top: 50%; right: 5%; transform: translateY(-50%); }
.pos-bottom-left   { bottom: 5%; left: 5%; }
.pos-bottom-center { bottom: 5%; left: 50%; transform: translateX(-50%); }
.pos-bottom-right  { bottom: 5%; right: 5%; }

/* ── Layer Base ── */
.alert-layer {
  position: absolute;
  will-change: transform, opacity;
  transform-origin: center center;
  white-space: nowrap;
}

.alert-layer.type-text {
  line-height: 1.3;
  white-space: pre-wrap;
  text-align: center;
}

.alert-layer.type-image img,
.alert-layer.type-emoji {
  display: block;
}

.alert-layer.type-shape .shape-el {
  display: block;
}

/* ── Text Effects ── */
.fx-glow {
  text-shadow:
    0 0 10px var(--glow-color, #00aaff),
    0 0 20px var(--glow-color, #00aaff),
    0 0 40px var(--glow-color, #00aaff);
}

.fx-outline {
  -webkit-text-stroke: var(--outline-width, 2px) var(--outline-color, #000);
  paint-order: stroke fill;
}

.fx-gradient {
  background: linear-gradient(135deg, var(--grad-color1, #ff6ec7), var(--grad-color2, #7873f5));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.fx-shadow {
  text-shadow: 2px 2px 4px var(--shadow-color, rgba(0,0,0,0.5));
}

/* ── Shape Definitions ── */
.shape-circle  { border-radius: 50%; }
.shape-star    { clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%); }
.shape-heart   { clip-path: polygon(50% 85%, 5% 40%, 5% 20%, 25% 0%, 50% 15%, 75% 0%, 95% 20%, 95% 40%); }
.shape-diamond { clip-path: polygon(50% 0%, 100% 50%, 50% 100%, 0% 50%); }

/* ── Entrance Animations ── */
@keyframes enter-fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes enter-slide-left {
  from { opacity: 0; transform: translateX(-80px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes enter-slide-right {
  from { opacity: 0; transform: translateX(80px); }
  to   { opacity: 1; transform: translateX(0); }
}

@keyframes enter-slide-up {
  from { opacity: 0; transform: translateY(60px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes enter-slide-down {
  from { opacity: 0; transform: translateY(-60px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes enter-zoom-in {
  from { opacity: 0; transform: scale(0.3); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes enter-bounce {
  0%   { opacity: 0; transform: scale(0.3); }
  50%  { opacity: 1; transform: scale(1.15); }
  70%  { transform: scale(0.9); }
  100% { transform: scale(1); }
}

@keyframes enter-spin-in {
  from { opacity: 0; transform: rotate(-180deg) scale(0.3); }
  to   { opacity: 1; transform: rotate(0deg) scale(1); }
}

/* ── Exit Animations ── */
@keyframes exit-fade-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}

@keyframes exit-slide-left {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(-80px); }
}

@keyframes exit-slide-right {
  from { opacity: 1; transform: translateX(0); }
  to   { opacity: 0; transform: translateX(80px); }
}

@keyframes exit-slide-up {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(-60px); }
}

@keyframes exit-slide-down {
  from { opacity: 1; transform: translateY(0); }
  to   { opacity: 0; transform: translateY(60px); }
}

@keyframes exit-zoom-out {
  from { opacity: 1; transform: scale(1); }
  to   { opacity: 0; transform: scale(0.3); }
}

@keyframes exit-bounce-out {
  0%   { transform: scale(1); opacity: 1; }
  25%  { transform: scale(1.15); opacity: 1; }
  100% { transform: scale(0); opacity: 0; }
}

/* ── Hold Animations (looping during display) ── */
@keyframes hold-pulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.05); }
}

@keyframes hold-float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-8px); }
}

@keyframes hold-glow-pulse {
  0%, 100% { filter: brightness(1); }
  50%      { filter: brightness(1.3); }
}

@keyframes hold-shake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-3px); }
  20%, 40%, 60%, 80% { transform: translateX(3px); }
}

/* ── Particle Styles ── */
.particle {
  position: absolute;
  pointer-events: none;
  will-change: transform, opacity;
}

.particle-confetti {
  border-radius: 2px;
}

.particle-sparkle {
  border-radius: 50%;
  box-shadow: 0 0 6px currentColor;
}

.particle-heart {
  clip-path: polygon(50% 85%, 5% 40%, 5% 20%, 25% 0%, 50% 15%, 75% 0%, 95% 20%, 95% 40%);
}

.particle-star {
  clip-path: polygon(50% 0%, 61% 35%, 98% 35%, 68% 57%, 79% 91%, 50% 70%, 21% 91%, 32% 57%, 2% 35%, 39% 35%);
}

.particle-emoji {
  font-size: 24px;
  line-height: 1;
  background: none;
}