/* ===== LOCK PAGE — Password Gate ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --bg-deep: #0a0b1e;
  --accent-rose: #ff5ea2;
  --accent-blush: #ff8ec6;
  --accent-violet: #a47aff;
  --accent-lavender: #c4a0ff;
  --accent-gold: #ffd475;
  --glow-rose: rgba(255, 94, 162, 0.35);
  --glow-violet: rgba(164, 122, 255, 0.3);
}

body {
  font-family: 'Inter', sans-serif;
  background:
    radial-gradient(ellipse at 30% 20%, rgba(255, 94, 162, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 70% 80%, rgba(164, 122, 255, 0.1) 0%, transparent 45%),
    radial-gradient(ellipse at 50% 50%, rgba(255, 212, 117, 0.05) 0%, transparent 40%),
    linear-gradient(160deg, #0e0520, #091530 40%, #1a0830);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  color: #f4f0ff;
}

/* ── Stars ── */
.stars-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
}

.star {
  position: absolute;
  background: #fff;
  border-radius: 50%;
  animation: twinkle var(--dur, 3s) ease-in-out infinite alternate;
}

@keyframes twinkle {
  0% { opacity: 0.1; }
  100% { opacity: var(--max-opacity, 0.6); }
}

/* ── Floating Hearts ── */
.float-hearts {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.fh {
  position: absolute;
  font-size: 1.2rem;
  opacity: 0;
  animation: heartDrift 9s ease-out forwards;
}

@keyframes heartDrift {
  0% { transform: translateY(0) scale(0.5) rotate(0deg); opacity: 0; }
  10% { opacity: 0.5; }
  100% { transform: translateY(-110vh) scale(1) rotate(25deg); opacity: 0; }
}

/* ── Lock Wrapper ── */
.lock-wrapper {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 440px;
  width: 92vw;
  animation: fadeUp 1.2s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Glass Card ── */
.lock-card {
  border: 1px solid rgba(255, 142, 198, 0.2);
  border-radius: 28px;
  padding: 2.8rem 2rem 2.4rem;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.07), rgba(16, 15, 38, 0.65));
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px var(--glow-rose);
  position: relative;
  overflow: hidden;
  animation: pulseGlow 5s ease-in-out infinite;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 40px var(--glow-rose); }
  50% { box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 60px var(--glow-violet), 0 0 80px var(--glow-rose); }
}

.lock-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: conic-gradient(from 0deg, transparent, rgba(255, 142, 198, 0.04), transparent, rgba(164, 122, 255, 0.04), transparent);
  animation: rotateSlow 18s linear infinite;
}

@keyframes rotateSlow {
  to { transform: rotate(360deg); }
}

/* ── Lock Icon ── */
.lock-icon {
  font-size: 3.2rem;
  margin-bottom: 0.6rem;
  display: block;
  position: relative;
  z-index: 1;
  filter: drop-shadow(0 0 12px var(--glow-rose));
  animation: heartPulse 2s ease-in-out infinite;
}

@keyframes heartPulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.12); }
}

/* ── Title ── */
.lock-title {
  font-family: 'Great Vibes', cursive;
  font-size: clamp(2rem, 5vw, 3rem);
  position: relative;
  z-index: 1;
  background: linear-gradient(135deg, #ffd9f0, var(--accent-lavender), var(--accent-gold));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer 4s linear infinite;
  margin-bottom: 0.4rem;
}

@keyframes shimmer {
  to { background-position: 200% center; }
}

.lock-subtitle {
  font-size: 0.92rem;
  color: #b8b5d8;
  position: relative;
  z-index: 1;
  margin-bottom: 1.8rem;
  line-height: 1.5;
}

/* ── Password Input ── */
.password-field {
  position: relative;
  z-index: 1;
  margin-bottom: 1.2rem;
}

.password-field input {
  width: 100%;
  padding: 0.95rem 1.2rem;
  border-radius: 16px;
  border: 1px solid rgba(255, 142, 198, 0.25);
  background: rgba(10, 11, 30, 0.8);
  color: #f4f0ff;
  font-family: inherit;
  font-size: 1rem;
  text-align: center;
  letter-spacing: 0.15em;
  transition: border-color 0.35s ease, box-shadow 0.35s ease;
  outline: none;
}

.password-field input::placeholder {
  color: rgba(255, 255, 255, 0.25);
  letter-spacing: 0.05em;
}

.password-field input:focus {
  border-color: var(--accent-blush);
  box-shadow: 0 0 20px var(--glow-rose), 0 0 40px rgba(164, 122, 255, 0.12);
}

/* ── Unlock Button ── */
.unlock-btn {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 0.9rem;
  border: none;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--accent-rose), var(--accent-violet));
  color: #fff;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: 0.05em;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  box-shadow: 0 6px 20px rgba(255, 94, 162, 0.35);
  overflow: hidden;
}

.unlock-btn::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 200%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.15), transparent);
  transition: left 0.5s ease;
}

.unlock-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 35px rgba(255, 94, 162, 0.45), 0 0 25px var(--glow-violet);
}

.unlock-btn:hover::after {
  left: 100%;
}

.unlock-btn:active {
  transform: translateY(0) scale(0.98);
}

/* ── Error Message ── */
.error-msg {
  position: relative;
  z-index: 1;
  margin-top: 1rem;
  font-size: 0.88rem;
  color: #ff6b8a;
  min-height: 1.4em;
  transition: opacity 0.3s ease;
  opacity: 0;
}

.error-msg.visible {
  opacity: 1;
  animation: shake 0.4s ease;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-8px); }
  40% { transform: translateX(8px); }
  60% { transform: translateX(-5px); }
  80% { transform: translateX(5px); }
}

/* ── Hint ── */
.hint {
  position: relative;
  z-index: 1;
  margin-top: 1.4rem;
  font-size: 0.8rem;
  color: rgba(184, 181, 216, 0.5);
}

.hint strong {
  color: rgba(255, 142, 198, 0.6);
}

/* ── Success State ── */
.lock-card.success {
  animation: unlockPulse 0.6s ease-out;
  border-color: rgba(164, 122, 255, 0.5);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4), 0 0 80px var(--glow-violet), 0 0 120px var(--glow-rose);
}

@keyframes unlockPulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.03); }
  100% { transform: scale(1); }
}

/* ── Sparkle Cursor ── */
.sparkle {
  position: fixed;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  pointer-events: none;
  z-index: 999;
  animation: sparkleFade 0.6s ease-out forwards;
}

@keyframes sparkleFade {
  0% { opacity: 1; transform: scale(1); }
  100% { opacity: 0; transform: scale(0) translateY(-15px); }
}