/* ============================================
   Century Birthday - Homepage Styles
   ============================================ */

/* --- Starfield Canvas --- */
#starfield {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
}

/* --- Main Scene --- */
#scene {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  min-height: 100dvh;
  padding: var(--space-lg);
}

/* --- Character Container --- */
#character-container {
  position: relative;
  display: block;
  width: min(360px, 80vw);
  max-width: 400px;
  animation: charFloat 4s ease-in-out infinite,
             charTilt 6s ease-in-out infinite;
  z-index: 2;
  filter: drop-shadow(0 0 30px rgba(179, 157, 218, 0.3))
          drop-shadow(0 0 60px rgba(126, 184, 218, 0.15));
  transition: filter 0.5s;
}

#character-container.lit {
  filter: drop-shadow(0 0 50px rgba(240, 215, 140, 0.6))
          drop-shadow(0 0 100px rgba(240, 215, 140, 0.3));
  cursor: pointer;
}

#character-container.lit:hover {
  filter: drop-shadow(0 0 70px rgba(240, 215, 140, 0.8))
          drop-shadow(0 0 140px rgba(240, 215, 140, 0.4));
}

#century-character {
  width: 100%;
  height: auto;
  display: block;
}

/* --- Invisible link overlay on character --- */
#character-link {
  position: absolute; inset: 0; z-index: 5;
  pointer-events: none;
}
#character-container.lit #character-link {
  pointer-events: auto;
}

/* --- Homepage Fireworks + Birthday Text --- */
#home-fireworks {
  position: fixed; top: 0; left: 0;
  width: 100%; height: 100%; z-index: 1;
  pointer-events: none;
}
#home-birthday-text {
  position: fixed; top: 10%; left: 50%;
  transform: translateX(-50%); z-index: 15;
  font-family: var(--font-display); font-size: 1.8rem; font-weight: 700;
  color: rgba(240,215,140,0.7); letter-spacing: 0.12em;
  pointer-events: none; text-shadow: 0 0 30px rgba(240,215,140,0.4);
  animation: homeTextPulse 3s ease-in-out infinite;
}
@keyframes homeTextPulse {
  0%,100% { opacity: 0.4; }
  50% { opacity: 0.8; }
}

/* Big (bodyguard game, bottom-right) */
#obj-big {
  bottom: 18%; right: 6%;
  width: min(140px, 26vw);
  animation: selfRotate 10s linear infinite;
}

/* --- Rose Portal (center-right to avoid Big) --- */
#rose-portal {
  position: fixed; bottom: 30%; right: 22%; z-index: 50;
  width: min(120px, 22vw); opacity: 0; pointer-events: none;
  transition: opacity 0.8s, filter var(--transition-normal);
  animation: selfRotate 12s linear infinite;
  cursor: pointer;
}
#rose-portal.visible { opacity: 1; pointer-events: auto; }
#rose-portal:hover {
  filter: drop-shadow(0 0 18px rgba(240,215,140,0.7))
          drop-shadow(0 0 40px rgba(240,215,140,0.3));
  transform: scale(1.12);
}

@keyframes charFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-14px); }
}

@keyframes charTilt {
  0%, 100% { transform: rotate(-1.5deg); }
  50% { transform: rotate(1.5deg); }
}

/* --- Floating Objects --- */
.floating-object {
  position: absolute;
  z-index: 3;
  cursor: pointer;
  transition: filter var(--transition-normal),
              transform var(--transition-fast);
}

.floating-object:hover {
  filter: drop-shadow(0 0 18px rgba(240, 215, 140, 0.7))
          drop-shadow(0 0 40px rgba(240, 215, 140, 0.3));
  transform: scale(1.12);
}

.floating-object:active {
  transform: scale(0.95);
}

.obj-svg {
  display: block;
}

/* Snare drum - top right area */
#obj-drum {
  top: 8%;
  right: 8%;
  width: min(120px, 22vw);
  animation: selfRotate 8s linear infinite;
}

/* Phone - bottom left area */
#obj-phone {
  bottom: 12%;
  left: 10%;
  width: min(80px, 15vw);
  animation: selfRotate 10s linear infinite;
}

/* Scissors - top left area */
#obj-scissors {
  top: 12%;
  left: 8%;
  width: min(110px, 20vw);
  animation: selfRotate 7s linear infinite;
}

@keyframes selfRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* Hover override - combine rotation + hover */
#obj-drum:hover,
#obj-phone:hover,
#obj-scissors:hover {
  animation-play-state: running;
  filter: drop-shadow(0 0 18px rgba(240, 215, 140, 0.7))
          drop-shadow(0 0 40px rgba(240, 215, 140, 0.3));
}

/* --- BGM Overlay --- */
#bgm-overlay {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: rgba(10, 10, 30, 0.85);
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  backdrop-filter: blur(4px);
  transition: opacity 0.8s ease-out;
}

#bgm-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

#bgm-overlay-content {
  text-align: center;
}

.overlay-star {
  font-size: 3rem;
  color: var(--color-gold-light);
  animation: overlayPulse 2s ease-in-out infinite;
  margin-bottom: var(--space-lg);
}

@keyframes overlayPulse {
  0%, 100% { transform: scale(1); opacity: 0.6; }
  50% { transform: scale(1.2); opacity: 1; }
}

.overlay-text {
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-gold-light);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-sm);
}

.overlay-sub {
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--color-text-dim);
  font-style: italic;
}

/* --- Loading Hint --- */
#loading-hint {
  position: fixed; bottom: 60px; left: 50%; transform: translateX(-50%);
  z-index: 50; font-family: var(--font-body); font-size: 0.75rem;
  color: rgba(200,190,210,0.4); pointer-events: none;
  opacity: 1; transition: opacity 0.8s;
}
#loading-hint.gone { opacity: 0; }

/* --- Achievement Toast --- */
#ach-toast {
  position: fixed; bottom: 24px; right: 24px; z-index: 200;
  background: rgba(15,13,40,0.95); border: 1px solid rgba(212,168,83,0.35);
  border-radius: 12px; padding: 16px 20px; max-width: 300px;
  backdrop-filter: blur(10px); opacity: 0; pointer-events: none;
  transform: translateX(120%); transition: all 0.4s ease;
}
#ach-toast.show { opacity: 1; transform: translateX(0); }
.ach-toast-inner { display: flex; align-items: center; gap: 12px; }
.ach-toast-emoji { font-size: 1.8rem; }
.ach-toast-title { font-family: var(--font-display); font-size: 0.85rem; color: var(--color-gold-light); }
.ach-toast-sub { font-family: var(--font-body); font-size: 0.72rem; color: rgba(200,190,210,0.6); margin-top: 2px; }

/* --- Sidebar --- */
#sidebar-toggle {
  position: fixed; bottom: 16px; left: 16px; z-index: 60;
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(26,16,64,0.7); border: 1px solid rgba(212,168,83,0.4);
  color: var(--color-gold-light); font-family: var(--font-display);
  font-size: 0.9rem; cursor: pointer;
  backdrop-filter: blur(10px); transition: all var(--transition-fast);
}
#sidebar-toggle:hover { background: rgba(42,26,80,0.8); border-color: var(--color-gold); }

#sidebar {
  position: fixed; top: 0; left: 0; z-index: 55;
  width: 280px; max-width: 80vw; height: 100%;
  background: rgba(12,10,24,0.95); backdrop-filter: blur(12px);
  border-right: 1px solid rgba(212,168,83,0.2);
  transform: translateX(0); transition: transform 0.4s ease;
}
#sidebar.sidebar-hidden { transform: translateX(-100%); }

#sidebar-content {
  padding: 60px 24px 24px; color: #c8b8a0;
  font-family: var(--font-body); font-size: 0.85rem; line-height: 1.8;
}
#sidebar-content h3 {
  font-family: var(--font-display); font-size: 0.9rem;
  color: var(--color-gold-light); letter-spacing: 0.06em; margin-bottom: 10px;
}
#sidebar-content hr {
  border: none; border-top: 1px solid rgba(255,255,255,0.06); margin: 16px 0;
}
#sidebar-content p { margin-bottom: 10px; color: rgba(200,184,160,0.7); }

/* --- BGM Toggle + Label --- */
#bgm-wrapper {
  position: fixed; bottom: 16px; right: 16px; z-index: 50;
  display: flex; align-items: center; gap: 10px;
}
#bgm-toggle {
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(26,16,64,0.7); border: 1px solid rgba(212,168,83,0.4);
  color: var(--color-gold-light); font-size: 1.2rem;
  display: flex; align-items: center; justify-content: center;
  backdrop-filter: blur(10px); transition: all var(--transition-fast); cursor: pointer;
}
#bgm-toggle:hover { background: rgba(42,26,80,0.8); border-color: var(--color-gold); }
#bgm-toggle.muted #bgm-icon { opacity: 0.4; }

#bgm-label {
  font-family: var(--font-body); font-size: 0.72rem;
  color: rgba(240,215,140,0.7); opacity: 0;
  transition: opacity 0.4s; white-space: nowrap;
  pointer-events: none;
}
#bgm-label.show { opacity: 1; }

/* --- Ending Portal --- */
#ending-portal {
  position: fixed;
  bottom: 40%;
  right: var(--space-md);
  z-index: 50;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.8s ease-out;
}

#ending-portal.visible {
  opacity: 1;
  pointer-events: auto;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  #obj-drum {
    top: 5%;
    right: 4%;
    width: min(90px, 20vw);
  }

  #obj-phone {
    bottom: 8%;
    left: 4%;
    width: min(60px, 14vw);
  }

  #obj-scissors {
    top: 6%;
    left: 4%;
    width: min(80px, 18vw);
  }

  #character-container {
    width: min(280px, 65vw);
  }

  .overlay-text {
    font-size: 1.4rem;
  }

  #ending-portal {
    bottom: 30%;
    right: var(--space-sm);
  }
}

@media (max-width: 480px) {
  #obj-drum { width: 70px; }
  #obj-phone { width: 50px; }
  #obj-scissors { width: 65px; }
  #character-container { width: min(220px, 60vw); }
}