/* ============================================================
   menus.css — Intro cinematic, wave banner, game over,
               start menu, boss banner + HP bar
   ============================================================ */

/* ---------- Intro / boot sequence ---------- */

#intro-vignette {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 6;
  background:
    radial-gradient(ellipse at center, transparent 35%, rgba(255, 30, 30, 0.55) 100%),
    radial-gradient(ellipse at 50% 0%, rgba(255, 50, 50, 0.35), transparent 55%),
    radial-gradient(ellipse at 50% 100%, rgba(255, 50, 50, 0.35), transparent 55%);
  mix-blend-mode: screen;
  opacity: 0;
  animation: introPulse 0.9s ease-in-out infinite;
}
#intro-vignette.hidden { display: none; }
@keyframes introPulse {
  0%, 100% { opacity: 0.35; }
  50%      { opacity: 0.85; }
}

#intro-stinger {
  position: absolute;
  top: 46%;
  left: 50%;
  transform: translate(-50%, -50%) scale(0.9);
  z-index: 7;
  pointer-events: none;
  font-size: 38px;
  font-weight: 800;
  letter-spacing: 10px;
  color: #fff;
  text-shadow:
    0 0 12px rgba(0, 229, 255, 0.9),
    0 0 28px rgba(0, 229, 255, 0.55),
    2px 2px 0 rgba(255, 59, 59, 0.6);
  opacity: 0;
}
#intro-stinger.hidden { display: none; }
#intro-stinger.show {
  animation: stingerPop 1.2s ease-out forwards;
}
@keyframes stingerPop {
  0%   { opacity: 0; transform: translate(-50%, -50%) scale(0.7); letter-spacing: 4px; }
  18%  { opacity: 1; transform: translate(-50%, -50%) scale(1.05); letter-spacing: 12px; }
  75%  { opacity: 1; transform: translate(-50%, -50%) scale(1.08); letter-spacing: 13px; }
  100% { opacity: 0; transform: translate(-50%, -50%) scale(1.15); letter-spacing: 16px; }
}

/* Intro run name overlay — shown above stinger during intro cinematic */
#intro-run-name {
  position: absolute;
  top: 36%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 7;
  pointer-events: none;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 6px;
  color: rgba(0, 229, 255, 0.9);
  text-shadow: 0 0 10px rgba(0, 229, 255, 0.7), 0 0 20px rgba(0, 229, 255, 0.3);
  opacity: 0;
}
#intro-run-name.hidden { display: none; }
#intro-run-name.show {
  animation: runNameFade 2.8s ease-out forwards;
}
@keyframes runNameFade {
  0%   { opacity: 0; letter-spacing: 2px; }
  15%  { opacity: 1; letter-spacing: 7px; }
  70%  { opacity: 1; }
  100% { opacity: 0; }
}

/* ---------- Wave banner ---------- */

#wave-banner {
  position: absolute;
  top: 32%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
  z-index: 4;
  visibility: visible;
  transition: opacity 0.4s ease, visibility 0s linear 0s;
}
#wave-banner.hidden { opacity: 0; visibility: hidden; transition: opacity 0.4s ease, visibility 0s linear 0.4s; }
.wave-banner-sub {
  font-size: 14px;
  letter-spacing: 8px;
  color: var(--enemy);
  text-shadow: 0 0 10px rgba(255, 59, 59, 0.7);
  margin-bottom: 6px;
}
.wave-banner-main {
  font-size: 56px;
  font-weight: 800;
  letter-spacing: 6px;
  color: var(--text);
  text-shadow: 0 0 16px var(--friendly), 0 0 32px rgba(0, 229, 255, 0.4);
}

/* ---------- Game over ---------- */

#game-over {
  position: absolute;
  inset: 0;
  background: rgba(5, 5, 16, 0.85);
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  z-index: 20;
  text-align: center;
}
#game-over.show { display: flex; }
#game-over h1 {
  font-size: 64px;
  letter-spacing: 8px;
  color: var(--enemy);
  text-shadow: 0 0 20px rgba(255, 59, 59, 0.7);
  margin-bottom: 18px;
}
#game-over .stats {
  font-size: 16px;
  color: var(--text);
  margin-bottom: 28px;
  letter-spacing: 1px;
}
#game-over button {
  padding: 14px 32px;
  background: var(--panel-bg);
  color: var(--friendly);
  border: 1px solid var(--friendly);
  border-radius: 4px;
  font-size: 14px;
  letter-spacing: 4px;
  font-family: inherit;
  cursor: pointer;
  box-shadow: 0 0 14px rgba(0, 229, 255, 0.4);
}
#game-over button:hover { background: rgba(0, 229, 255, 0.15); }

/* ---------- Start menu ---------- */

#start-menu {
  position: absolute;
  inset: 0;
  z-index: 30;
  display: flex;
  justify-content: center;
  align-items: center;
  background:
    radial-gradient(ellipse at 50% 35%, rgba(0, 229, 255, 0.08), transparent 60%),
    radial-gradient(ellipse at 50% 100%, rgba(255, 59, 59, 0.10), transparent 55%),
    linear-gradient(180deg, #05050E 0%, #0A0A14 50%, #100815 100%);
  overflow: hidden;
  text-align: center;
  animation: smFadeIn 0.5s ease-out;
}
#start-menu.hidden {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.6s ease-out;
}
@keyframes smFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* Faint grid backdrop */
.sm-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.06) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
/* CRT scanlines */
.sm-scanlines {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: repeating-linear-gradient(
    0deg,
    rgba(0, 0, 0, 0) 0px,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.18) 3px,
    rgba(0, 0, 0, 0.18) 3px
  );
  mix-blend-mode: multiply;
}

.sm-content {
  position: relative;
  z-index: 2;
  max-width: 640px;
  padding: 0 24px;
}

.sm-eyebrow {
  font-size: 11px;
  letter-spacing: 6px;
  color: var(--friendly);
  opacity: 0.8;
  margin-bottom: 18px;
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.5);
}

.sm-title {
  font-size: 88px;
  line-height: 0.95;
  letter-spacing: 6px;
  color: #fff;
  margin: 0 0 14px 0;
  font-weight: 700;
  text-shadow:
    0 0 12px rgba(0, 229, 255, 0.6),
    0 0 32px rgba(0, 229, 255, 0.35),
    2px 2px 0 rgba(255, 59, 59, 0.55);
  animation: smGlitch 4s infinite;
}
@keyframes smGlitch {
  0%, 92%, 100% { transform: translate(0, 0); }
  93%           { transform: translate(-2px, 1px); }
  94%           { transform: translate(2px, -1px); }
  95%           { transform: translate(-1px, 0); }
  96%           { transform: translate(0, 0); }
}

.sm-tagline {
  font-size: 13px;
  letter-spacing: 4px;
  color: var(--amber);
  margin-bottom: 22px;
  text-shadow: 0 0 6px rgba(255, 184, 0, 0.4);
}

.sm-divider {
  width: 240px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--friendly), transparent);
  margin: 0 auto 22px auto;
  opacity: 0.6;
}

.sm-briefing {
  border: 1px solid rgba(0, 229, 255, 0.25);
  background: rgba(0, 0, 0, 0.35);
  padding: 16px 20px;
  margin: 0 auto 28px auto;
  max-width: 520px;
  text-align: left;
  box-shadow: inset 0 0 24px rgba(0, 229, 255, 0.06);
}
.sm-briefing-title {
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--friendly);
  margin-bottom: 8px;
  opacity: 0.85;
}
.sm-briefing-body {
  font-size: 12px;
  line-height: 1.6;
  color: #c9d1e3;
  letter-spacing: 0.5px;
}

.sm-button {
  position: relative;
  padding: 18px 44px;
  background: rgba(0, 229, 255, 0.06);
  color: var(--friendly);
  border: 1px solid var(--friendly);
  border-radius: 2px;
  font-family: inherit;
  font-size: 15px;
  letter-spacing: 6px;
  cursor: pointer;
  overflow: hidden;
  text-shadow: 0 0 8px rgba(0, 229, 255, 0.6);
  box-shadow:
    0 0 16px rgba(0, 229, 255, 0.35),
    inset 0 0 12px rgba(0, 229, 255, 0.1);
  transition: transform 0.12s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.sm-button:hover {
  background: rgba(0, 229, 255, 0.18);
  box-shadow:
    0 0 28px rgba(0, 229, 255, 0.6),
    inset 0 0 18px rgba(0, 229, 255, 0.2);
  transform: translateY(-1px);
}
.sm-button:active { transform: translateY(0); }
.sm-button-label { position: relative; z-index: 2; }
.sm-button-glow {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, rgba(0, 229, 255, 0.35), transparent);
  transform: translateX(-100%);
  animation: smSweep 2.4s infinite;
}
@keyframes smSweep {
  0%   { transform: translateX(-100%); }
  60%  { transform: translateX(100%); }
  100% { transform: translateX(100%); }
}

.sm-warning {
  margin-top: 22px;
  font-size: 12px;
  letter-spacing: 4px;
  color: var(--enemy);
  min-height: 18px;
  text-shadow: 0 0 8px rgba(255, 59, 59, 0.6);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.sm-warning.show { opacity: 1; animation: smPulse 0.9s infinite; }
@keyframes smPulse {
  0%, 100% { opacity: 0.55; }
  50%      { opacity: 1; }
}

/* ---------- Boss banner + HP bar ---------- */

#boss-banner {
  position: absolute;
  top: 18%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  pointer-events: none;
  z-index: 6;
  visibility: visible;
  transition: opacity 0.4s ease, visibility 0s linear 0s;
}
#boss-banner.hidden { opacity: 0; visibility: hidden; transition: opacity 0.4s ease, visibility 0s linear 0.4s; }
.boss-banner-sub {
  font-size: 13px;
  letter-spacing: 6px;
  color: var(--enemy);
  text-shadow: 0 0 12px rgba(255, 59, 59, 0.9);
  margin-bottom: 8px;
  animation: bossSubPulse 0.7s ease-in-out infinite;
}
.boss-banner-main {
  font-size: 48px;
  font-weight: 800;
  letter-spacing: 6px;
  color: #fff;
  text-shadow:
    0 0 18px rgba(255, 59, 59, 0.85),
    0 0 36px rgba(255, 59, 59, 0.5),
    2px 2px 0 rgba(255, 184, 0, 0.6);
  animation: bossMainPop 0.6s ease-out;
}
@keyframes bossSubPulse {
  0%, 100% { opacity: 0.6; }
  50%      { opacity: 1; }
}
@keyframes bossMainPop {
  0%   { opacity: 0; transform: scale(0.7); letter-spacing: 2px; }
  60%  { opacity: 1; transform: scale(1.05); letter-spacing: 8px; }
  100% { opacity: 1; transform: scale(1); letter-spacing: 6px; }
}

#boss-hp {
  position: absolute;
  top: 56px;
  left: 50%;
  transform: translateX(-50%);
  width: min(620px, 60vw);
  z-index: 5;
  pointer-events: none;
  text-align: center;
}
#boss-hp.hidden { display: none; }
.boss-hp-label {
  font-size: 10px;
  letter-spacing: 4px;
  color: var(--enemy);
  text-shadow: 0 0 8px rgba(255, 59, 59, 0.8);
  margin-bottom: 4px;
}
.boss-hp-track {
  height: 10px;
  background: rgba(255, 59, 59, 0.12);
  border: 1px solid rgba(255, 59, 59, 0.5);
  border-radius: 2px;
  overflow: hidden;
  box-shadow: 0 0 14px rgba(255, 59, 59, 0.4), inset 0 0 8px rgba(0, 0, 0, 0.5);
}
.boss-hp-fill {
  height: 100%;
  width: 100%;
  background: linear-gradient(90deg, #ff3b3b, #ff8c42);
  box-shadow: 0 0 10px #ff3b3b;
  transition: width 0.15s ease;
}