/* --- Global Styles & Design System --- */
:root {
  /* Color Palette */
  --bg-dark: #090c10;
  --bg-panel: rgba(21, 28, 41, 0.65);
  --bg-panel-solid: #151c29;
  --border-color: rgba(255, 255, 255, 0.08);
  --color-primary: #00d2ff;
  --color-secondary: #0078ff;
  --color-accent: #7000ff;
  --color-success: #3ddc84;
  --color-warning: #f5a623;
  --text-main: #f3f4f6;
  --text-muted: #9ca3af;
  
  /* Gradients */
  --gradient-main: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
  --gradient-accent: linear-gradient(135deg, #8b5cf6 0%, var(--color-accent) 100%);
  
  /* Shadows & Blur */
  --glass-blur: blur(20px);
  --glow-shadow: 0 0 25px rgba(0, 210, 255, 0.15);
  --panel-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.4);
  
  /* Transitions */
  --transition-fast: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  
  /* Layout Constants */
  --header-height: 73px;
}

/* Enable standard smooth scrolling */
html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-height) + 15px); /* Dynamically offset for sticky header */
}

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

body {
  font-family: 'Inter', 'Noto Sans KR', sans-serif;
  background-color: var(--bg-dark);
  background-image: 
    linear-gradient(to bottom, rgba(9, 12, 16, 0.1) 0%, rgba(9, 12, 16, 0.78) 850px, var(--bg-dark) 1050px),
    url('/images/hero-bg.webp');
  background-size: 100% 1050px; /* Bleeds deep behind the first card steps */
  background-position: center top;
  background-repeat: no-repeat;
  color: var(--text-main);
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
  display: flex;
  flex-direction: column;
  line-height: 1.7;
}

/* --- Decorative Orbs --- */
.bg-decor-wrapper {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
  pointer-events: none;
  z-index: -1;
}

.decor-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(100px);
  z-index: -1;
  opacity: 0.2;
}
.orb-1 {
  width: 400px;
  height: 400px;
  background: var(--color-primary);
  top: -100px;
  right: -100px;
}
.orb-2 {
  width: 500px;
  height: 500px;
  background: var(--color-accent);
  bottom: -100px;
  left: -200px;
}
.orb-3 {
  width: 300px;
  height: 300px;
  background: var(--color-secondary);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.08;
}

/* --- Header --- */
header {
  border-bottom: 1px solid var(--border-color);
  background: rgba(9, 12, 16, 0.7);
  backdrop-filter: blur(12px);
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1.2rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  height: 30px; /* Slim header height */
  width: auto;
  display: block;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1.2rem;
}

/* Custom Language Dropdown */
.custom-lang-selector {
  position: relative;
  font-family: inherit;
}

.lang-trigger-btn {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  padding: 0.6rem 1.2rem;
  border-radius: 12px;
  color: var(--text-main);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-fast);
  outline: none;
  min-width: 155px; /* Stable, spacious width to prevent text wrapping and look premium */
}

.lang-trigger-btn:hover {
  border-color: rgba(0, 210, 255, 0.3);
  background: rgba(0, 210, 255, 0.05);
}

.flag-img {
  width: 20px;
  height: auto;
  border-radius: 2px;
  object-fit: cover;
  box-shadow: 0 1px 3px rgba(0,0,0,0.3);
}

.arrow-icon {
  font-size: 0.75rem;
  color: var(--text-muted);
  transition: var(--transition-fast);
  margin-left: auto; /* Push the chevron to the far right */
}

.custom-lang-selector.open .arrow-icon {
  transform: rotate(180deg);
  color: var(--color-primary);
}

.lang-dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  background: rgba(21, 28, 41, 0.95);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  padding: 0.5rem;
  width: 155px; /* Matches the trigger button's min-width */
  display: none;
  flex-direction: column;
  gap: 0.3rem;
  backdrop-filter: blur(15px);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
  z-index: 1000;
  animation: dropdownFadeIn 0.2s ease-out;
}

@keyframes dropdownFadeIn {
  from {
    opacity: 0;
    transform: translateY(-5px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.custom-lang-selector.open .lang-dropdown-menu {
  display: flex;
}

.lang-option {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.8rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-main);
  transition: var(--transition-fast);
}

.lang-option:hover {
  background: rgba(0, 210, 255, 0.08);
  color: var(--color-primary);
}

.lang-option.active {
  background: rgba(0, 210, 255, 0.12);
  color: var(--color-primary);
  font-weight: 600;
}

/* --- Hero Section --- */
.hero-section {
  margin-top: calc(-1 * var(--header-height));
  padding: calc(var(--header-height) + 6rem) 2rem 4rem 2rem;
  position: relative;
  overflow: hidden;
  background: transparent; /* Transparent to show the body background */
}

/* Cyber Tech Grid Background overlay */
.hero-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: 
    linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 50px 50px;
  background-position: center;
  mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, #000 30%, transparent 100%);
  pointer-events: none;
  z-index: 0;
}

.hero-container {
  max-width: 960px;
  margin: 0 auto;
  text-align: center;
  position: relative;
  z-index: 2;
}

/* PLAYCOC Premium Logo & Sheen styling */
.brand-logo-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.2rem;
  margin-bottom: 1.5rem;
}

.logo-sheen-container {
  position: relative;
  display: inline-block;
  line-height: 0;
  max-width: 100%;
}

.hero-logo-img {
  width: 300px;
  height: auto;
  max-width: 100%;
  filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.65)); /* Clean baseline drop-shadow */
  display: block;
  margin: 0 auto;
  animation: neonSignBreathe 6s infinite ease-in-out; /* Smooth, natural breathing neon glow */
}

/* Diagonal metallic shine sweeping across the logo surface only */
.sheen-layer {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 3;
  
  /* Clips the shine gradient exactly to the non-transparent logo pixels */
  -webkit-mask-image: url('/images/hero-logo.webp');
  mask-image: url('/images/hero-logo.webp');
  -webkit-mask-size: contain;
  mask-size: contain;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  
  /* Dynamic 125deg tilted metallic sheen line sweeping left-to-right */
  background: linear-gradient(
    125deg,
    rgba(255, 255, 255, 0) 38%,
    rgba(255, 255, 255, 0.75) 50%,
    rgba(255, 255, 255, 0) 62%
  );
  background-size: 300% 100%;
  background-position: 120% 0;
  background-repeat: no-repeat; /* Crucial: prevents tiling so only a single line sweeps */
  animation: logoSheenSweep 8s ease-in-out infinite; /* Uniform 8s cycle for regular, calm repetition */
}

@keyframes logoSheenSweep {
  /* Sweeps slowly (0% to 14% = 1.12s), then exits faster (14% to 20% = 0.48s) - Total 1.6s sweep (from original 3rd sweep) */
  0% {
    background-position: 120% 0;
  }
  14% {
    background-position: 15% 0; /* Slow glide past center */
  }
  20% {
    background-position: -120% 0; /* Faster exit */
  }
  /* Regular, calm waiting pause (20% to 100% = 6.4s wait) */
  100% {
    background-position: -120% 0;
  }
}

@keyframes neonSignBreathe {
  0%, 100% {
    transform: scale(1);
    /* Fades completely to solid black drop-shadow (neon off/disappeared) */
    filter: drop-shadow(0 4px 20px rgba(0, 0, 0, 0.65));
  }
  50% {
    transform: scale(1.025); /* Gentle scale up */
    /* Neon glow fades in smoothly and beautifully */
    filter: 
      drop-shadow(0 6px 25px rgba(0, 0, 0, 0.8)) 
      drop-shadow(0 0 22px rgba(0, 210, 255, 0.45)) 
      drop-shadow(0 0 32px rgba(180, 0, 255, 0.35));
  }
}

.hero-subtitle {
  color: var(--text-muted);
  font-size: 1.2rem;
  margin-bottom: 3.5rem;
  max-width: 900px; /* Increased from 600px to display the subtitle as a single clean line on desktop */
  margin-left: auto;
  margin-right: auto;
}

.hero-btn-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.8rem;
  width: 100%;
}

/* Hero Card Buttons */
.hero-card-btn {
  text-decoration: none;
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 1.8rem;
  display: flex;
  align-items: center;
  gap: 1.2rem;
  backdrop-filter: var(--glass-blur);
  transition: var(--transition-normal);
  cursor: pointer;
  box-shadow: var(--panel-shadow);
  text-align: left;
}

.hero-card-btn:hover {
  transform: translateY(-5px);
}

.webgame-btn:hover {
  border-color: rgba(168, 85, 247, 0.4);
  box-shadow: 0 15px 35px rgba(168, 85, 247, 0.15);
}
.apk-btn:hover {
  border-color: rgba(0, 210, 255, 0.4);
  box-shadow: 0 15px 35px rgba(0, 210, 255, 0.15);
}
.cs-btn:hover {
  border-color: rgba(16, 185, 129, 0.4);
  box-shadow: 0 15px 35px rgba(16, 185, 129, 0.15);
}

.hero-card-icon-wrap {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.8rem;
  transition: var(--transition-normal);
  flex-shrink: 0;
}

.webgame-btn .hero-card-icon-wrap {
  background: rgba(168, 85, 247, 0.1);
  color: #a855f7;
  border: 1px solid rgba(168, 85, 247, 0.2);
}
.webgame-btn:hover .hero-card-icon-wrap {
  background: linear-gradient(135deg, #a855f7, #6366f1);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(168, 85, 247, 0.4);
}

.apk-btn .hero-card-icon-wrap {
  background: rgba(0, 210, 255, 0.1);
  color: var(--color-primary);
  border: 1px solid rgba(0, 210, 255, 0.2);
}
.apk-btn:hover .hero-card-icon-wrap {
  background: var(--gradient-main);
  color: #000;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.4);
}

.cs-btn .hero-card-icon-wrap {
  background: rgba(16, 185, 129, 0.1);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.2);
}
.cs-btn:hover .hero-card-icon-wrap {
  background: linear-gradient(135deg, #10b981, #059669);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(16, 185, 129, 0.4);
}

.hero-card-info {
  display: flex;
  flex-direction: column;
}

.hero-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.1rem;
}

.hero-card-desc {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.8px;
}

/* --- Glowing Button Effect --- */
.glowing-btn {
  position: relative;
  overflow: visible;
  animation: glowPulse 2s infinite alternate;
}

@keyframes glowPulse {
  0% {
    box-shadow: 0 0 10px rgba(0, 210, 255, 0.2), inset 0 0 5px rgba(0, 210, 255, 0.1);
    border-color: rgba(0, 210, 255, 0.3);
  }
  100% {
    box-shadow: 0 0 25px rgba(0, 210, 255, 0.5), inset 0 0 15px rgba(0, 210, 255, 0.2);
    border-color: rgba(0, 210, 255, 0.8);
  }
}

/* --- Event Badge (Floating + Shine) --- */
.event-badge {
  position: absolute;
  top: -14px;
  right: -8px;
  z-index: 10;
  background: var(--gradient-accent);
  color: #fff;
  font-family: 'Outfit', 'Noto Sans KR', sans-serif;
  font-size: 0.72rem;
  font-weight: 800;
  padding: 0.35rem 0.85rem;
  border-radius: 50px;
  box-shadow: 0 4px 15px rgba(112, 0, 255, 0.4);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
  pointer-events: none;
  overflow: hidden; /* Required for shine clipping */
}

/* --- 1. Shine / Shimmer Effect (Kept as requested) --- 
.event-badge::after {
  content: '';
  position: absolute;
  top: 0;
  left: -250%;
  width: 250%;
  height: 100%;
  opacity: 0;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.2) 20%,
    rgba(255, 255, 255, 0.7) 50%,
    rgba(255, 255, 255, 0.2) 80%,
    rgba(255, 255, 255, 0) 100%
  );
  transform: skewX(-45deg);
  animation: badgeShineSweep 6s infinite ease-in-out;
}

@keyframes badgeShineSweep {
  0% { left: -250%; width: 250%; opacity: 0; }
  5% { opacity: 1; }
  25% { left: 200%; width: 15%; opacity: 1; }
  25.01% { left: -250%; width: 250%; opacity: 0; }
  30% { left: -250%; width: 250%; opacity: 0; }
  35% { opacity: 1; }
  55% { left: 200%; width: 15%; opacity: 1; }
  55.01%, 100% { left: 200%; width: 15%; opacity: 0; }
}
------------------------------------------------- */

/* 2. Full Body Flash Effect (번쩍번쩍) */
.event-badge::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  border-radius: inherit;
  /* ?�면 ?�이?��? ?�닌 중앙 집중???�근 빛방???�낌 */
  background: radial-gradient(circle, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0) 70%);
  mix-blend-mode: overlay; /* 밑의 ?�크/?�플 그라?�이?�과 ?�아?�게 ?�임 */
  opacity: 0;
  pointer-events: none;
  animation: badgePremiumFlash 5s infinite ease-in-out;
}

@keyframes badgePremiumFlash {
  /* �?번째 부?�러???�창(Swell)�?발광 */
  0% { opacity: 0; transform: scale(0.9); box-shadow: 0 0 0 rgba(255,255,255,0); }
  8% { opacity: 1; transform: scale(1.15); box-shadow: 0 0 25px rgba(255,255,255,0.8); }
  16% { opacity: 0; transform: scale(1); box-shadow: 0 0 0 rgba(255,255,255,0); }
  
  /* ??번째 부?�러???�창(Swell)�?발광 */
  22% { opacity: 0; transform: scale(0.9); box-shadow: 0 0 0 rgba(255,255,255,0); }
  30% { opacity: 1; transform: scale(1.15); box-shadow: 0 0 25px rgba(255,255,255,0.8); }
  38% { opacity: 0; transform: scale(1); box-shadow: 0 0 0 rgba(255,255,255,0); }
  
  /* ?�아???��??�간 */
  100% { opacity: 0; transform: scale(1); box-shadow: 0 0 0 rgba(255,255,255,0); }
}

/* --- Section Divider --- */
.section-divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin: 10.5rem auto 1rem auto; /* Increased gap above, decreased gap below */
  max-width: 960px;
  width: 100%;
  padding: 0 2rem;
  position: relative;
  z-index: 2;
}

.divider-line {
  flex: 1;
  height: 1px;
}

.section-divider .divider-line:first-child {
  background: linear-gradient(90deg, transparent, rgba(0, 210, 255, 0.2), var(--border-color));
}

.section-divider .divider-line:last-child {
  background: linear-gradient(90deg, var(--border-color), rgba(112, 0, 255, 0.2), transparent);
}

.divider-badge {
  background: rgba(21, 28, 41, 0.85);
  border: 1px solid var(--border-color);
  padding: 0.5rem 1.2rem;
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  letter-spacing: 1.5px;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  box-shadow: 0 4px 15px rgba(0,0,0,0.3);
  backdrop-filter: blur(10px);
}

/* --- Main Layout (Centered Spacious Column) --- */
.container {
  max-width: 960px;
  margin: 0 auto;
  padding: 1rem 2rem 6rem 2rem; /* Reduced top padding to decrease gap below the divider */
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 3.5rem;
  align-items: stretch;
}

/* --- Intro Header --- */
.intro-box {
  text-align: center;
  margin-bottom: 1rem;
}

.intro-box h1 {
  font-family: 'Outfit', 'Noto Sans KR', sans-serif;
  font-size: 2.8rem;
  font-weight: 800;
  margin-bottom: 1rem;
  background: linear-gradient(135deg, #ffffff 0%, #a5b4fc 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.intro-box .subtitle {
  color: var(--text-muted);
  font-size: 1.2rem;
  max-width: 700px;
  margin: 0 auto;
}

/* --- Guide Steps --- */
.steps-wrapper {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.step-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  backdrop-filter: var(--glass-blur);
  overflow: hidden;
  transition: var(--transition-normal);
  cursor: pointer;
  box-shadow: var(--panel-shadow);
  scroll-margin-top: 100px; /* Native scroll padding for header offset */
}

.step-card:hover {
  border-color: rgba(0, 210, 255, 0.25);
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.5);
}

.step-card.active {
  border-color: rgba(0, 210, 255, 0.4);
  box-shadow: 0 12px 40px rgba(0, 210, 255, 0.06);
  background: rgba(21, 28, 41, 0.85);
  cursor: default;
}

.step-header {
  padding: 2.2rem 2.8rem;
  display: flex;
  align-items: center;
  gap: 1.8rem;
}

.step-number {
  font-family: 'Outfit', sans-serif;
  font-size: 2.2rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.12);
  transition: var(--transition-normal);
}

.step-card.active .step-number {
  color: var(--color-primary);
  text-shadow: var(--glow-shadow);
}

.step-title-group {
  flex: 1;
}

.step-tag {
  display: inline-block;
  font-family: 'Outfit', sans-serif;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  color: var(--text-muted);
  letter-spacing: 1.2px;
  margin-bottom: 0.2rem;
  transition: var(--transition-fast);
}

.step-card.active .step-tag {
  color: var(--color-primary);
}

.step-header h2 {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text-main);
}

.step-arrow {
  color: var(--text-muted);
  font-size: 1.2rem;
  transition: var(--transition-normal);
}

.step-card.active .step-arrow {
  transform: rotate(90deg);
  color: var(--color-primary);
}

.step-content {
  max-height: 0;
  padding: 0 2.8rem;
  overflow: hidden;
  transition: max-height 0.3s ease-out, padding 0.3s ease-out; /* Accelerated and smoothed */
  color: #e5e7eb;
  font-size: 1.08rem;
  text-align: left; /* Left align to prevent weird word gaps on mobile */
}

.step-card.active .step-content {
  max-height: 950px; /* Increased to allow Vietnamese/English content to expand fully without any clipping */
  padding: 0 2.8rem 2.8rem 2.8rem;
  transition: max-height 0.3s ease-in-out, padding 0.3s ease-in-out;
}

.step-content p {
  margin-bottom: 1.5rem;
}

.color-highlight {
  color: var(--color-primary);
  font-weight: 600;
}

/* Lists and Alerts */
.bullet-list {
  padding-left: 1.5rem;
  margin-bottom: 1.8rem;
}
.bullet-list li {
  margin-bottom: 1rem;
}

.alert-box {
  background: rgba(255, 255, 255, 0.02);
  border-left: 4px solid var(--color-primary);
  border-radius: 4px 16px 16px 4px;
  padding: 1.4rem;
  margin: 1.8rem 0;
  display: flex;
  gap: 1.2rem;
  align-items: flex-start;
}

.alert-box.note {
  border-left-color: var(--color-primary);
  background: rgba(0, 210, 255, 0.04);
}

.alert-box.success {
  border-left-color: var(--color-success);
  background: rgba(61, 220, 132, 0.04);
}

.alert-icon {
  font-size: 1.4rem;
  margin-top: 0.1rem;
}
.alert-box.note .alert-icon { color: var(--color-primary); }
.alert-box.success .alert-icon { color: var(--color-success); }

.alert-text {
  font-size: 0.98rem;
}
.alert-text strong {
  display: block;
  margin-bottom: 0.3rem;
  color: var(--text-main);
}

/* Actions in steps */
.step-actions {
  display: flex;
  gap: 1.2rem;
  margin-top: 2rem;
  border-top: 1px solid var(--border-color);
  padding-top: 1.8rem;
}

/* Buttons styling */
.btn {
  font-family: 'Noto Sans KR', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  padding: 0.9rem 1.8rem;
  border-radius: 14px;
  border: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  transition: var(--transition-fast);
}

.btn-primary {
  background: var(--gradient-main);
  color: #000;
  box-shadow: 0 4px 15px rgba(0, 210, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 210, 255, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-primary.reset-btn {
  background: var(--gradient-accent);
  color: #fff;
  box-shadow: 0 4px 15px rgba(112, 0, 255, 0.25);
}

.btn-primary.reset-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(112, 0, 255, 0.4);
}

/* --- Footer --- */
footer {
  border-top: 1px solid var(--border-color);
  background: #07090d;
  padding: 2rem 1.5rem;
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: auto;
}

.footer-container {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  flex-direction: row;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
}

.footer-left-content {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  align-items: flex-start;
}

.footer-slogan-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-main);
  margin: 0;
  text-align: left;
}

.footer-copyright-text {
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.4);
  margin: 0;
  letter-spacing: 0.5px;
  font-family: 'Outfit', sans-serif;
  text-align: left;
}

.footer-policy-link-wrap {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  color: var(--text-muted);
  font-weight: 500;
  transition: var(--transition-fast);
}

.footer-policy-link-wrap:hover {
  color: var(--color-primary);
}

.policy-icon-box {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: rgba(30, 58, 138, 0.4); /* Solid, modern dark blue/indigo */
  border: 1px solid rgba(59, 130, 246, 0.25);
  border-radius: 8px; /* Squircle radius */
  transform: rotate(45deg);
  margin-right: 0.8rem;
  transition: var(--transition-fast);
}

.footer-policy-link-wrap:hover .policy-icon-box {
  background: var(--color-primary);
  border-color: var(--color-primary);
  box-shadow: 0 0 10px rgba(0, 210, 255, 0.5);
}

.policy-icon-box i {
  transform: rotate(-45deg); /* Counter-rotate icon back to vertical */
  color: #ffffff;
  font-size: 0.75rem;
}

@media (max-width: 768px) {
  .footer-container {
    flex-direction: column;
    text-align: center;
    gap: 1.5rem;
  }
  .footer-left-content {
    align-items: center;
  }
  .footer-slogan-text,
  .footer-copyright-text {
    text-align: center;
  }
}

/* Policy Modal Styles */
.modal-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(4, 6, 10, 0.85);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.modal-overlay.open {
  opacity: 1;
  pointer-events: auto;
}

.modal-card {
  background: var(--bg-panel-solid);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  width: 90%;
  max-width: 750px;
  max-height: 80vh;
  display: flex;
  flex-direction: column;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.6);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}

.modal-overlay.open .modal-card {
  transform: translateY(0);
}

.modal-header {
  padding: 1.5rem 2rem;
  border-bottom: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.modal-header h2 {
  font-size: 1.4rem;
  color: var(--color-primary);
  font-family: 'Outfit', sans-serif;
  margin: 0;
}

.modal-close-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 2.2rem;
  cursor: pointer;
  line-height: 1;
  transition: var(--transition-fast);
  outline: none;
}

.modal-close-btn:hover {
  color: #ff3b30;
}

/* Policy Page Content Styling */
.policy-wrapper {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 24px;
  padding: 4rem;
  backdrop-filter: var(--glass-blur);
  box-shadow: var(--panel-shadow);
  max-width: 800px;
  margin: 0 auto;
}

.policy-header {
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 2rem;
  margin-bottom: 2.5rem;
  text-align: left;
}

.policy-header h1 {
  font-size: 2.2rem;
  color: var(--text-main);
  font-family: 'Outfit', sans-serif;
  font-weight: 700;
  margin-bottom: 0.8rem;
  letter-spacing: -0.5px;
}

.policy-date {
  color: var(--color-primary);
  font-weight: 600;
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.policy-intro {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 2rem;
}

.policy-content {
  font-size: 0.98rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85); /* Clean, high-contrast text color */
  text-align: left; /* Reverted to left-align to prevent awkward spacing on mobile */
}

.policy-content h3 {
  color: var(--text-main);
  font-size: 1.25rem;
  font-weight: 600;
  margin-top: 3rem;
  margin-bottom: 1.2rem;
  font-family: 'Outfit', sans-serif;
  letter-spacing: -0.3px;
  border-left: 3px solid var(--color-primary);
  padding-left: 0.8rem;
}

.policy-content p {
  margin-bottom: 1.5rem;
}

/* --- Responsive Media Queries --- */
@media (max-width: 900px) {
  body {
    background-image: 
      linear-gradient(to bottom, rgba(9, 12, 16, 0.1) 0%, rgba(9, 12, 16, 0.95) 300px, var(--bg-dark) 380px),
      url('/images/hero-bg.webp');
    background-size: 220% auto; /* 2.2x zoom, preserves aspect ratio without vertical stretching or extreme zoom on mobile */
    background-position: center top;
  }

  .hero-section {
    padding: 4rem 1.5rem 2rem 1.5rem;
  }
  
  .brand-text {
    font-size: 2.6rem;
  }
  
  .brand-svg {
    width: 80px;
    height: 80px;
  }

  .hero-subtitle {
    font-size: 1.05rem;
    margin-bottom: 2rem;
  }

  .hero-btn-grid {
    grid-template-columns: 1fr;
    gap: 1.2rem;
  }
  
  .hero-card-btn {
    padding: 1.4rem;
  }

  .section-divider {
    margin: 7.5rem auto 0.5rem auto; /* Adjusted mobile spacing (wider top gap, reduced bottom gap) */
  }

  .container {
    padding: 1rem 0.5rem 4rem 0.5rem; /* Reduced mobile container top padding */
    gap: 2.5rem;
  }
  
  .policy-wrapper {
    padding: 2.5rem 1.8rem;
  }
  
  .policy-header h1 {
    font-size: 1.8rem;
  }
  
  .policy-content h3 {
    margin-top: 2.5rem;
  }
  
  .step-card {
    scroll-margin-top: 80px; /* Adjusted header offset for mobile screens */
  }
  
  .intro-box h1 {
    font-size: 2.4rem;
  }
}

@media (max-width: 500px) {
  .header-container {
    padding: 1rem;
  }
  .logo {
    font-size: 1.3rem;
  }
  .badge {
    display: none;
  }
  .intro-box h1 {
    font-size: 2rem;
  }
  .step-header {
    padding: 1.5rem;
    gap: 1.2rem;
  }
  .step-number {
    font-size: 1.8rem;
  }
  .step-header h2 {
    font-size: 1.15rem;
  }
  .step-content {
    font-size: 0.95rem;
    padding: 0 1.5rem;
  }
  .step-card.active .step-content {
    padding: 0 1.5rem 1.5rem 1.5rem;
  }
  .btn {
    padding: 0.8rem 1.4rem;
    font-size: 0.9rem;
  }
}

/* --- Footer Links Layout --- */
.footer-links {
  display: flex;
  gap: 1.5rem;
  align-items: center;
}

@media (max-width: 768px) {
  .footer-links {
    flex-direction: column;
    gap: 1rem;
  }
}

/* --- Q&A Specific Styles --- */
.qna-tabs {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.qna-tab-btn {
  background: rgba(30, 41, 59, 0.4);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text-muted);
  padding: 0.8rem 1.6rem;
  border-radius: 12px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.qna-tab-btn:hover {
  color: #ffffff;
  border-color: rgba(255, 255, 255, 0.3);
}

.qna-tab-btn.active {
  background: linear-gradient(135deg, var(--color-primary), var(--color-secondary));
  color: #ffffff;
  border-color: transparent;
  box-shadow: 0 0 15px rgba(0, 210, 255, 0.3);
}

.qna-group {
  display: none;
}

.qna-group.active {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.qna-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 16px;
  overflow: hidden;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.qna-card:hover {
  border-color: rgba(0, 210, 255, 0.3);
  box-shadow: 0 0 20px rgba(0, 210, 255, 0.15);
}

.qna-question-btn {
  width: 100%;
  text-align: left;
  background: transparent;
  border: none;
  padding: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
  color: var(--text-main);
  font-family: inherit;
}

.qna-question-btn:focus,
.qna-question-btn:active {
  outline: none;
  background: transparent;
}

.qna-q-tag {
  color: var(--color-primary);
  font-weight: 800;
  font-size: 1.2rem;
  font-family: 'Outfit', sans-serif;
  margin-right: 0.5rem;
}

.qna-question-text {
  font-size: 1.05rem;
  font-weight: 600;
  flex: 1;
}

.qna-card-arrow {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: transform var(--transition-fast);
}

.qna-card.open .qna-card-arrow {
  transform: rotate(90deg);
  color: var(--color-primary);
}

.qna-answer-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-fast) ease-out;
  background: rgba(0, 0, 0, 0.2);
}

.qna-answer-content {
  padding: 1.5rem;
  border-top: 1px solid var(--border-color);
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.7;
}

.qna-a-tag {
  color: var(--color-secondary);
  font-weight: 800;
  font-size: 1.2rem;
  font-family: 'Outfit', sans-serif;
  margin-right: 0.5rem;
}

/* --- Register Page Specific Styles --- */
.register-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--header-height) - 150px);
  padding: 2rem 1.5rem;
}

.register-card {
  background: #2a336a; /* Opaque dark blue/indigo matching the reference image */
  border: 3px solid #5d6dbf; /* Thick light blue/indigo boundary line */
  border-radius: 28px;
  width: 100%;
  max-width: 460px; /* Default portrait width */
  box-shadow: 0 10px 45px rgba(0, 0, 0, 0.6);
  padding: 2.2rem 2.5rem;
  position: relative;
  transition: max-width 0.3s ease, padding 0.3s ease;
}

.register-card-content {
  display: block;
}

.register-title-box {
  font-family: 'Inter', sans-serif;
  font-size: 1.6rem;
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 2rem;
  text-align: center;
  letter-spacing: 0.5px;
}

.portrait-only-title {
  display: block;
}

.landscape-only-title {
  display: none;
}

.register-form {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
}

.register-input-wrap {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  text-align: left;
  position: relative; /* Context for absolute positioned status icons */
}

.register-input-wrap input {
  width: 100%;
  padding: 0.8rem 1.0rem; /* Reverted to default padding */
  background-color: #d8d8d8;
  color: #000000;
  border: 1px solid #111111;
  border-radius: 4px;
  font-size: 1.1rem;
  font-family: inherit;
  font-weight: 500;
  outline: none;
  box-sizing: border-box;
}

.register-input-wrap input::placeholder {
  color: #555555;
}

.register-input-desc {
  font-size: 0.82rem;
  line-height: 1.4;
  color: #b4c6fc;
  font-weight: 400;
  margin-top: 0.2rem;
  display: block; /* Shown by default in portrait */
}

.register-submit-btn {
  background-color: #4f61d6; /* Theme-specific active blue/indigo button */
  color: #ffffff;
  border: 1px solid rgba(0, 0, 0, 0.2);
  border-radius: 8px;
  padding: 0.65rem 2.8rem;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  outline: none;
  margin: 1rem auto 0 auto;
  transition: all 0.2s ease;
  width: auto;
  box-shadow: 0 4px 15px rgba(79, 97, 214, 0.3);
}

.register-submit-btn:hover:not(:disabled) {
  background-color: #5f71e6;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(79, 97, 214, 0.5);
}

.register-submit-btn:active:not(:disabled) {
  transform: translateY(0);
}

.register-submit-btn:disabled {
  background-color: #1b2247 !important;
  color: #727fa1 !important;
  border-color: rgba(255, 255, 255, 0.05) !important;
  opacity: 0.5;
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none !important;
}

/* Guide Panel - Hidden by default in portrait */
.register-guide-panel {
  display: none;
}

/* Split-screen Responsive Layout for Desktop & Wide Viewports (or Landscape Mode) */
@media (min-width: 768px) {
  .portrait-only-title {
    display: none !important;
  }
  .landscape-only-title {
    display: block !important;
  }
  .register-card {
    max-width: 780px; /* Expand card width to split columns */
    padding: 2.5rem 3rem;
  }
  .register-card-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2.5rem;
    align-items: stretch;
  }
  .register-input-desc {
    display: none; /* Hide descriptions below inputs; shown in guide panel instead */
  }
  .register-guide-panel {
    display: flex;
    flex-direction: column;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: left;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.3);
  }
  .guide-title-box {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    color: var(--color-primary);
    font-weight: 700;
    font-size: 1.1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 0.8rem;
    margin-bottom: 1rem;
  }
  .guide-content-box p {
    color: #b4c6fc;
    font-size: 0.95rem;
    line-height: 1.6;
    margin: 0;
  }
}

/* Mobile Landscape Mode specific tweaks */
@media (max-height: 600px) and (orientation: landscape) {
  /* Thin out header bar to maximize space */
  header {
    height: 52px !important;
  }
  .header-container {
    height: 52px !important;
  }
  .logo-img {
    height: 28px !important;
  }
  .lang-trigger-btn {
    padding: 0.35rem 0.55rem !important;
    font-size: 0.85rem !important;
  }
  
  .portrait-only-title {
    display: none !important;
  }
  .landscape-only-title {
    display: block !important;
  }
  
  .register-wrapper {
    padding: 0.5rem 1rem 1.5rem 1rem !important; /* Pull card as high as possible */
    min-height: auto;
  }
  .register-card {
    max-width: 720px;
    padding: 1.5rem 2rem !important;
    border-radius: 20px;
  }
  .register-card-content {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 1.5rem;
    align-items: stretch;
  }
  .register-input-desc {
    display: none;
  }
  .register-guide-panel {
    display: flex;
    flex-direction: column;
    background: rgba(0, 0, 0, 0.25);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 12px;
    padding: 1rem 1.2rem;
    text-align: left;
  }
  .register-title-box {
    margin-bottom: 1rem;
  }
  .register-form {
    gap: 1rem;
  }
  .register-input-wrap input {
    padding: 0.7rem 0.85rem;
    font-size: 1rem;
  }
}

/* Tiny Mobile Viewport Tweaks */
@media (max-width: 480px) {
  .register-wrapper {
    padding: 0.8rem 1rem 2rem 1rem;
    min-height: auto; /* Disable vertical centering to pull card up near header */
  }
  .register-card {
    padding: 1.8rem 1.4rem;
    border-radius: 20px;
  }
  .register-title-box {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
  }
  .register-input-wrap input {
    padding: 0.75rem 0.9rem;
    font-size: 1rem;
  }
}


/* --- Flat Q&A Page Specific Styles --- */
.qna-subheading {
  font-family: 'Outfit', 'Inter', sans-serif;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 2.2rem;
  margin-bottom: 1.2rem;
  border-left: 3px solid var(--color-primary);
  padding-left: 0.8rem;
  letter-spacing: -0.3px;
  text-align: left;
}

.qna-flat-group {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.qna-flat-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 1.8rem 2.2rem;
  box-shadow: 0 4px 25px rgba(0, 0, 0, 0.25);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  text-align: left;
  transition: border-color var(--transition-fast);
}

.qna-flat-card:hover {
  border-color: rgba(0, 210, 255, 0.2);
}

.qna-flat-question {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.5;
}

.qna-flat-answer {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-muted);
  border-top: 1px dashed rgba(255, 255, 255, 0.08);
  padding-top: 0.8rem;
}

/* --- Mobile Lock Overlay (Visible on PC) --- */
.mobile-lock-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #2a336a; /* Matches card background */
  border-radius: 24px;
  z-index: 10;
  display: none; /* Shown on PC widths */
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 2.5rem 2rem;
  box-sizing: border-box;
  text-align: center;
  gap: 1.2rem;
}

.mobile-lock-overlay h3 {
  font-family: 'Outfit', sans-serif;
  font-size: 1.4rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
}

.mobile-lock-overlay p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #b4c6fc;
  margin: 0;
}

.phone-icon-animate {
  font-size: 3.5rem;
  color: var(--color-primary);
  animation: phoneBounce 2s infinite ease-in-out;
}

@keyframes phoneBounce {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(5deg); }
}

/* PC Desktop lock display triggers */
@media (min-width: 1025px) {
  .register-card {
    max-width: 460px !important; /* Revert card layout to single-column phone style */
    min-height: 480px;
  }
  .register-card-content {
    display: block !important;
  }
  .register-guide-panel {
    display: none !important; /* Hide guides on PC lock */
  }
  .mobile-lock-overlay {
    display: flex !important; /* Lock access on PC */
  }
}

/* --- Validation Error Banner --- */
.register-error-banner {
  background-color: rgba(255, 75, 75, 0.15);
  border: 1px solid #ff4b4b;
  color: #ffb6b6;
  border-radius: 8px;
  padding: 0.75rem 1rem;
  font-size: 0.88rem;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.2rem;
  text-align: left;
  line-height: 1.4;
  box-shadow: 0 4px 15px rgba(255, 75, 75, 0.1);
  animation: slideDownError 0.25s ease-out;
}

@keyframes slideDownError {
  0% { transform: translateY(-8px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

/* --- Registration Success Panel --- */
.register-success-panel {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3.5rem 2rem;
  gap: 1.4rem;
  width: 100%;
  box-sizing: border-box;
}

.success-icon-animate {
  font-size: 4.5rem;
  color: #4caf50;
  animation: successScale 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
  filter: drop-shadow(0 4px 12px rgba(76, 175, 80, 0.3));
}

@keyframes successScale {
  0% { transform: scale(0); opacity: 0; }
  70% { transform: scale(1.12); }
  100% { transform: scale(1); opacity: 1; }
}

.register-success-panel h3 {
  font-family: 'Outfit', 'Inter', sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: #ffffff;
  margin: 0;
  letter-spacing: -0.3px;
}

.register-success-panel p {
  font-size: 0.95rem;
  line-height: 1.6;
  color: #b4c6fc;
  margin: 0;
  max-width: 320px;
}

/* --- Spinner Animation on Submit Button --- */
@keyframes buttonSpinner {
  to { transform: rotate(360deg); }
}

.register-submit-btn.loading {
  position: relative;
  color: transparent !important;
  pointer-events: none;
  cursor: wait;
}

.register-submit-btn.loading::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  margin: auto;
  border: 3px solid transparent;
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: buttonSpinner 0.6s linear infinite;
}

/* --- Validation Status Icons --- */
.input-field-relative-container {
  position: relative;
  width: 100%;
  display: flex;
  align-items: center;
}

/* --- Input Validation Border & Glow Styling --- */
.register-input-wrap input {
  transition: border-color 0.2s ease, box-shadow 0.2s ease, background-color 0.2s ease;
}

.register-input-wrap input.is-valid {
  border-color: #2e7d32 !important; /* Slightly darker green border for distinction */
  background-color: #c8e6c9 !important; /* Slightly more pronounced premium pastel green background */
  box-shadow: 0 0 8px rgba(46, 125, 50, 0.2) !important;
}

.register-input-wrap input.is-valid:focus {
  border-color: #2e7d32 !important;
  background-color: #c8e6c9 !important;
  box-shadow: 0 0 12px rgba(46, 125, 50, 0.4) !important;
}

.register-input-wrap input.is-invalid {
  border-color: #d32f2f !important; /* Slightly darker red border for distinction */
  background-color: #ffcdd2 !important; /* Slightly more pronounced premium pastel red background */
  box-shadow: 0 0 8px rgba(211, 47, 47, 0.2) !important;
}

.register-input-wrap input.is-invalid:focus {
  border-color: #d32f2f !important;
  background-color: #ffcdd2 !important;
  box-shadow: 0 0 12px rgba(211, 47, 47, 0.4) !important;
}

/* --- Password Toggle Eye Buttons --- */
.password-toggle-btn {
  position: absolute;
  right: 0.7rem; /* Placed at the far right edge of the input, closer to the border */
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  padding: 0.4rem; /* Friendly click target */
  margin: 0;
  color: #666666;
  cursor: pointer;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 6;
  transition: color 0.2s ease, transform 0.1s ease;
  outline: none;
}

.password-toggle-btn:hover {
  color: #111111;
}

.password-toggle-btn:active {
  transform: translateY(-50%) scale(0.9);
}

/* Extra right padding specifically for password input elements to accommodate the eye button on the right */
.register-input-wrap input[type="password"] {
  padding-right: 2.5rem !important;
}

/* --- Step-by-Step Form Transition & Message Styles --- */
.step-field-wrapper {
  max-height: 0;
  opacity: 0;
  overflow: hidden;
  margin-bottom: 0 !important;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease, margin-bottom 0.4s ease;
}

.step-field-wrapper.active {
  max-height: 180px; /* Accommodate input, description and status message */
  opacity: 1;
  margin-bottom: 1.2rem !important;
  overflow: visible;
}

/* Synced transitions for submit button */
button.register-submit-btn.step-field-wrapper {
  max-height: 0;
  opacity: 0;
  padding-top: 0 !important;
  padding-bottom: 0 !important;
  border-width: 0 !important;
  margin-top: 0 !important;
  overflow: hidden;
  transition: max-height 0.4s cubic-bezier(0.4, 0, 0.2, 1), opacity 0.4s ease, padding 0.4s ease, margin 0.4s ease;
}

button.register-submit-btn.step-field-wrapper.active {
  max-height: 54px;
  opacity: 1;
  padding-top: 0.8rem !important;
  padding-bottom: 0.8rem !important;
  border-width: 1px !important;
  margin-top: 0.5rem !important;
  overflow: visible;
}

/* Status Checking Input State */
.register-input-wrap input.is-checking {
  border-color: #ffb74d !important;
  background-color: #fff3e0 !important; /* Soft pastel orange/yellow for checking state */
  box-shadow: 0 0 8px rgba(255, 183, 77, 0.2) !important;
}

.register-input-wrap input.is-checking:focus {
  border-color: #ffb74d !important;
  background-color: #fff3e0 !important;
  box-shadow: 0 0 12px rgba(255, 183, 77, 0.4) !important;
}

/* Step-specific inline messages */
.step-field-message {
  font-size: 0.85rem;
  font-weight: 500;
  margin-top: 0.35rem;
  min-height: 1.2rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  transition: all 0.2s ease;
}

.step-field-message.success-message {
  color: #4caf50; /* Green message text */
}

.step-field-message.error-message {
  color: #ff4b4b; /* Red message text */
}

.step-field-message.checking-message {
  color: #ffb74d; /* Soft orange/yellow message text */
}

/* Step-by-Step Next Action Buttons */
.step-next-btn {
  width: auto;
  align-self: flex-end; /* Align to the right in flex column wrapper */
  padding: 0.5rem 1.5rem;
  background-color: var(--color-primary);
  color: #ffffff;
  border: 1px solid var(--color-primary);
  border-radius: 4px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 0.6rem;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.1);
  outline: none;
}

.step-next-btn:disabled {
  background-color: #555555;
  border-color: #555555;
  color: #999999;
  cursor: not-allowed;
  box-shadow: none;
}

.step-next-btn:not(:disabled):hover {
  background-color: #4351a3; /* Brand color hover */
  border-color: #4351a3;
  transform: translateY(-1px);
  box-shadow: 0 4px 10px rgba(67, 81, 163, 0.3);
}

.step-next-btn:not(:disabled):active {
  transform: translateY(0);
  box-shadow: none;
}

/* --- Smooth Transitions for Form Submission --- */
.fade-out-anim {
  animation: formFadeOut 0.3s forwards ease-in;
}

.fade-in-anim {
  animation: panelFadeIn 0.4s forwards ease-out;
}

@keyframes formFadeOut {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-10px); }
}

@keyframes panelFadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}