/* style.css - การตกแต่งระบบสายรหัส Stat CBS Chula (Zootopia Theme) */
@import url('https://fonts.googleapis.com/css2?family=Kanit:wght@300;400;500;600;700&family=Prompt:wght@300;400;500;600;700&display=swap');

:root {
  /* Zootopia Night Theme Color Palette */
  --bg-gradient: linear-gradient(135deg, #050d14 0%, #0d1f2d 50%, #17374d 100%);
  --primary-deep: #0d1f2d;
  --secondary-teal: #1de9b6;
  --teal-glow: rgba(29, 233, 182, 0.4);
  --accent-gold: #ffd166;
  --gold-glow: rgba(255, 209, 102, 0.4);
  --accent-orange: #ffb703;
  --text-light: #f8f9fa;
  --text-muted: #a0aec0;
  
  /* Glassmorphism Styles */
  --glass-bg: rgba(13, 31, 45, 0.65);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
  
  /* Transitions */
  --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: 'Prompt', 'Kanit', sans-serif;
  background: var(--bg-gradient);
  background-attachment: fixed;
  color: var(--text-light);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Banner & Header Styling */
.app-header {
  position: relative;
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  border-radius: 0 0 20px 20px;
  /* overflow: hidden; ถูกนำออกเพื่อให้โลโก้ด้านล่างโผล่ออกมาได้ไม่แหว่ง */
  box-shadow: var(--glass-shadow);
  border: 1px solid var(--glass-border);
  border-top: none;
}

.banner-container {
  width: 100%;
  height: auto; /* ปรับเป็น auto เพื่อรักษาสัดส่วนรูปภาพ */
  position: relative;
  display: block;
}

.banner-img {
  width: 100%;
  height: auto; /* ปรับเป็น auto เพื่อรักษาสัดส่วนรูปภาพ */
  display: block;
  object-fit: contain;
  border-radius: 0 0 20px 20px; /* ย้ายมุมโค้งมนมาใส่ที่รูปโดยตรง */
}

.logo-overlay {
  position: absolute;
  top: 15px;
  left: 15px;
  width: 70px;
  height: 70px;
  background: white;
  border-radius: 50%;
  padding: 6px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.3);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10;
  border: 2.5px solid var(--secondary-teal);
  animation: logo-glow 3s infinite alternate;
  transition: var(--transition-smooth);
}

@media (max-width: 600px) {
  .logo-overlay {
    top: 10px;
    left: 10px;
    width: 50px;
    height: 50px;
    padding: 4px;
    border-width: 2px;
  }
}

@keyframes logo-glow {
  0% { box-shadow: 0 10px 25px rgba(0,0,0,0.3), 0 0 5px var(--teal-glow); }
  100% { box-shadow: 0 10px 25px rgba(0,0,0,0.3), 0 0 20px var(--secondary-teal); }
}

.logo-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

/* Container & Layout */
.main-container {
  max-width: 1200px;
  margin: 60px auto 40px;
  padding: 0 20px;
  min-height: calc(100vh - 340px);
}

/* Authentication Card */
.auth-wrapper {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: calc(100vh - 400px);
  padding: 20px 0;
}

.auth-card {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 20px;
  width: 100%;
  max-width: 480px;
  padding: 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.auth-card::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, var(--teal-glow) 0%, transparent 60%);
  z-index: -1;
  pointer-events: none;
}

.auth-card h2 {
  font-family: 'Kanit', sans-serif;
  font-size: 1.8rem;
  margin-bottom: 25px;
  color: var(--text-light);
  letter-spacing: 0.5px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}

.role-selector {
  display: flex;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 30px;
  padding: 5px;
  margin-bottom: 25px;
  border: 1px solid rgba(255,255,255,0.05);
}

.role-btn {
  flex: 1;
  background: transparent;
  border: none;
  color: var(--text-muted);
  padding: 12px 20px;
  font-family: 'Prompt', sans-serif;
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  border-radius: 25px;
  transition: var(--transition-smooth);
}

.role-btn.active {
  background: linear-gradient(135deg, var(--secondary-teal) 0%, #00b4d8 100%);
  color: #050d14;
  font-weight: 600;
  box-shadow: 0 4px 15px var(--teal-glow);
}

.form-group {
  margin-bottom: 20px;
  text-align: left;
}

.form-group label {
  display: block;
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 8px;
  margin-left: 5px;
}

.input-control {
  width: 100%;
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 14px 20px;
  color: var(--text-light);
  font-family: 'Prompt', sans-serif;
  font-size: 1rem;
  transition: var(--transition-smooth);
}

.input-control:focus {
  outline: none;
  border-color: var(--secondary-teal);
  box-shadow: 0 0 10px var(--teal-glow);
  background: rgba(0, 0, 0, 0.4);
}

.submit-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-orange) 100%);
  color: #050d14;
  border: none;
  border-radius: 12px;
  padding: 14px;
  font-family: 'Kanit', sans-serif;
  font-size: 1.1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 10px;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 15px rgba(255, 183, 3, 0.3);
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px var(--gold-glow);
}

.submit-btn:active {
  transform: translateY(0);
}

.error-msg {
  color: #ff6b6b;
  font-size: 0.9rem;
  margin-top: 15px;
  display: none;
  animation: shake 0.3s ease-in-out;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

/* Dashboard UI */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.8fr;
  gap: 30px;
  margin-top: 20px;
}

@media (max-width: 900px) {
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}

.info-panel, .content-panel {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow);
  border-radius: 20px;
  padding: 30px;
  display: flex;
  flex-direction: column;
}

.panel-title {
  font-family: 'Kanit', sans-serif;
  font-size: 1.4rem;
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--secondary-teal);
}

/* User Profile Widget */
.user-profile-widget {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 25px;
  background: rgba(255,255,255,0.03);
  padding: 15px 20px;
  border-radius: 15px;
  border: 1px solid rgba(255,255,255,0.05);
}

.user-avatar {
  font-size: 2.5rem;
  width: 60px;
  height: 60px;
  background: rgba(0,0,0,0.2);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 2px solid var(--secondary-teal);
}

.user-details h3 {
  font-family: 'Kanit', sans-serif;
  font-size: 1.1rem;
}

.user-details p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.logout-btn {
  align-self: flex-start;
  background: transparent;
  color: var(--text-muted);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 8px 16px;
  border-radius: 20px;
  font-family: 'Prompt', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  margin-top: auto;
}

.logout-btn:hover {
  border-color: #ff6b6b;
  color: #ff6b6b;
  background: rgba(255, 107, 107, 0.05);
}

/* Junior Reveal Card Styling */
.reveal-card-container {
  perspective: 1000px;
  width: 100%;
  height: 350px;
  margin-bottom: 30px;
}

.reveal-card-inner {
  position: relative;
  width: 100%;
  height: 100%;
  transition: transform 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  transform-style: preserve-3d;
  cursor: pointer;
}

.reveal-card-inner.flipped {
  transform: rotateY(180deg);
}

.card-front, .card-back {
  position: absolute;
  width: 100%;
  height: 100%;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 20px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  box-shadow: 0 10px 25px rgba(0,0,0,0.2);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.card-front {
  background: linear-gradient(145deg, #102a3a 0%, #081620 100%);
  color: white;
}

.card-front .lock-icon {
  font-size: 4rem;
  margin-bottom: 20px;
  animation: pulse-gold 2s infinite alternate;
}

@keyframes pulse-gold {
  0% { text-shadow: 0 0 5px var(--gold-glow); transform: scale(1); }
  100% { text-shadow: 0 0 25px var(--accent-gold); transform: scale(1.05); }
}

.card-front h4 {
  font-family: 'Kanit', sans-serif;
  font-size: 1.4rem;
  margin-bottom: 10px;
  color: var(--accent-gold);
}

.card-front p {
  color: var(--text-muted);
  font-size: 0.9rem;
  text-align: center;
}

.card-back {
  background: linear-gradient(145deg, #1a3c30 0%, #0d221c 100%);
  color: white;
  transform: rotateY(180deg);
  border-color: var(--secondary-teal);
}

.card-back .senior-avatar {
  font-size: 4rem;
  width: 90px;
  height: 90px;
  background: rgba(0, 0, 0, 0.3);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 3px solid var(--secondary-teal);
  margin-bottom: 15px;
  box-shadow: 0 0 20px rgba(29, 233, 182, 0.3);
}

.card-back h4 {
  font-family: 'Kanit', sans-serif;
  font-size: 1.5rem;
  margin-bottom: 5px;
  color: var(--secondary-teal);
}

.card-back .senior-info-item {
  font-size: 0.95rem;
  margin: 5px 0;
  color: var(--text-light);
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-back .label {
  color: var(--text-muted);
}

/* Hints List Post-it notes */
.hints-list {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.hint-item {
  background: linear-gradient(135deg, rgba(255, 209, 102, 0.08) 0%, rgba(255, 209, 102, 0.02) 100%);
  border-left: 4px solid var(--accent-gold);
  padding: 15px 20px;
  border-radius: 0 10px 10px 0;
  position: relative;
  transition: var(--transition-smooth);
}

.hint-item:hover {
  background: linear-gradient(135deg, rgba(255, 209, 102, 0.12) 0%, rgba(255, 209, 102, 0.04) 100%);
  transform: translateX(5px);
}

.hint-number {
  font-family: 'Kanit', sans-serif;
  color: var(--accent-gold);
  font-weight: bold;
  font-size: 0.85rem;
  margin-bottom: 5px;
  text-transform: uppercase;
}

.hint-text {
  font-size: 0.95rem;
  line-height: 1.5;
}

/* Hints Management (For Senior) */
.hints-mgmt-container {
  display: flex;
  flex-direction: column;
  gap: 15px;
  margin-bottom: 25px;
}

.hint-input-group {
  display: flex;
  gap: 10px;
}

.hint-input-group input {
  flex: 1;
}

.add-hint-btn {
  background: var(--secondary-teal);
  color: #050d14;
  border: none;
  padding: 0 20px;
  border-radius: 12px;
  font-family: 'Kanit', sans-serif;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.add-hint-btn:hover {
  background: #00b4d8;
  transform: translateY(-2px);
}

.senior-hint-item {
  background: rgba(0, 0, 0, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.05);
  padding: 12px 18px;
  border-radius: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 15px;
  transition: var(--transition-smooth);
}

.senior-hint-item:hover {
  border-color: rgba(255, 255, 255, 0.1);
  background: rgba(0, 0, 0, 0.25);
}

.delete-hint-btn {
  background: transparent;
  border: none;
  color: #ff6b6b;
  cursor: pointer;
  padding: 5px;
  font-size: 1.1rem;
  border-radius: 50%;
  width: 30px;
  height: 30px;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition-smooth);
}

.delete-hint-btn:hover {
  background: rgba(255, 107, 107, 0.15);
}

/* Chat Component styling */
.chat-container {
  height: 480px;
  display: flex;
  flex-direction: column;
  background: rgba(0, 0, 0, 0.2);
  border-radius: 15px;
  border: 1px solid rgba(255, 255, 255, 0.05);
  overflow: hidden;
}

.chat-header {
  background: rgba(0, 0, 0, 0.3);
  padding: 15px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-title-group h4 {
  font-family: 'Kanit', sans-serif;
  font-size: 1.05rem;
}

.chat-title-group p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.online-badge {
  display: inline-block;
  width: 8px;
  height: 8px;
  background: var(--secondary-teal);
  border-radius: 50%;
  margin-right: 5px;
  box-shadow: 0 0 8px var(--secondary-teal);
}

.chat-messages {
  flex: 1;
  padding: 20px;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 15px;
  scroll-behavior: smooth;
}

/* Message Bubble */
.msg-bubble {
  max-width: 75%;
  display: flex;
  flex-direction: column;
}

.msg-bubble.incoming {
  align-self: flex-start;
}

.msg-bubble.outgoing {
  align-self: flex-end;
}

.msg-sender {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-bottom: 4px;
  margin-left: 8px;
  font-weight: 500;
}

.msg-bubble.outgoing .msg-sender {
  margin-left: 0;
  margin-right: 8px;
  text-align: right;
}

.msg-content {
  padding: 12px 16px;
  border-radius: 16px;
  font-size: 0.95rem;
  line-height: 1.4;
  word-break: break-word;
}

.msg-bubble.incoming .msg-content {
  background: rgba(255,255,255,0.06);
  color: var(--text-light);
  border-bottom-left-radius: 4px;
  border: 1px solid rgba(255, 255, 255, 0.03);
}

.msg-bubble.outgoing .msg-content {
  background: linear-gradient(135deg, var(--secondary-teal) 0%, #00b4d8 100%);
  color: #050d14;
  border-bottom-right-radius: 4px;
  font-weight: 500;
  box-shadow: 0 4px 15px rgba(29, 233, 182, 0.15);
}

.msg-time {
  font-size: 0.65rem;
  color: var(--text-muted);
  margin-top: 4px;
  margin-left: 8px;
}

.msg-bubble.outgoing .msg-time {
  margin-left: 0;
  margin-right: 8px;
  text-align: right;
}

.chat-input-area {
  padding: 15px;
  background: rgba(0, 0, 0, 0.3);
  border-top: 1px solid rgba(255,255,255,0.05);
  display: flex;
  gap: 10px;
}

.chat-input {
  flex: 1;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: 25px;
  padding: 12px 20px;
  color: var(--text-light);
  font-family: 'Prompt', sans-serif;
  font-size: 0.95rem;
  transition: var(--transition-smooth);
}

.chat-input:focus {
  outline: none;
  border-color: var(--secondary-teal);
  background: rgba(0, 0, 0, 0.45);
}

.send-msg-btn {
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-orange) 100%);
  border: none;
  width: 45px;
  height: 45px;
  border-radius: 50%;
  color: #050d14;
  font-size: 1.1rem;
  cursor: pointer;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 10px rgba(255, 183, 3, 0.2);
}

.send-msg-btn:hover {
  transform: scale(1.05);
  box-shadow: 0 4px 15px var(--gold-glow);
}

.send-msg-btn:active {
  transform: scale(0.95);
}

/* Double Juniors Panel (For Senior Dashboard) */
.juniors-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
  margin-bottom: 25px;
}

.juniors-list.double {
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 550px) {
  .juniors-list.double {
    grid-template-columns: 1fr;
  }
}

.junior-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: 15px;
  padding: 18px;
  display: flex;
  align-items: center;
  gap: 15px;
  transition: var(--transition-smooth);
}

.junior-card:hover {
  background: rgba(255,255,255,0.06);
  border-color: var(--secondary-teal);
  transform: translateY(-2px);
}

.junior-avatar-sm {
  font-size: 2rem;
  width: 50px;
  height: 50px;
  background: rgba(0,0,0,0.25);
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  border: 1.5px solid var(--secondary-teal);
}

.junior-card-details h4 {
  font-family: 'Kanit', sans-serif;
  font-size: 1rem;
}

.junior-card-details p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 1px;
}

/* Developer & Testing Panel */
.dev-panel-toggle {
  position: fixed;
  right: 20px;
  bottom: 20px;
  background: linear-gradient(135deg, var(--secondary-teal) 0%, #00b4d8 100%);
  color: #050d14;
  border: none;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  font-size: 1.5rem;
  cursor: pointer;
  box-shadow: 0 10px 25px rgba(0,0,0,0.4);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 999;
  transition: var(--transition-smooth);
}

.dev-panel-toggle:hover {
  transform: scale(1.1) rotate(15deg);
  box-shadow: 0 15px 30px var(--teal-glow);
}

.dev-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 320px;
  height: 100%;
  background: rgba(10, 22, 33, 0.95);
  backdrop-filter: blur(15px);
  border-left: 1px solid var(--glass-border);
  box-shadow: -10px 0 35px rgba(0,0,0,0.5);
  z-index: 1000;
  transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  padding: 30px 20px;
  display: flex;
  flex-direction: column;
}

.dev-drawer.open {
  right: 0;
}

.dev-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 25px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.dev-header h3 {
  font-family: 'Kanit', sans-serif;
  color: var(--accent-gold);
}

.close-dev-btn {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 1.4rem;
  cursor: pointer;
  transition: var(--transition-smooth);
}

.close-dev-btn:hover {
  color: #ff6b6b;
}

.dev-section {
  margin-bottom: 25px;
}

.dev-section h4 {
  font-family: 'Kanit', sans-serif;
  font-size: 0.9rem;
  color: var(--text-muted);
  text-transform: uppercase;
  margin-bottom: 12px;
  letter-spacing: 0.5px;
}

.dev-quick-links {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dev-btn {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.05);
  color: var(--text-light);
  padding: 10px 15px;
  border-radius: 8px;
  text-align: left;
  font-family: 'Prompt', sans-serif;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition-smooth);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.dev-btn:hover {
  background: rgba(29, 233, 182, 0.1);
  border-color: var(--secondary-teal);
  color: var(--secondary-teal);
}

.dev-btn .badge {
  font-size: 0.75rem;
  padding: 2px 6px;
  border-radius: 4px;
  background: rgba(255,255,255,0.1);
  color: var(--text-muted);
}

.dev-btn:hover .badge {
  background: var(--secondary-teal);
  color: #050d14;
}

.dev-reveal-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dev-reveal-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(0,0,0,0.2);
  padding: 10px 15px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,0.03);
}

.dev-reveal-row span {
  font-size: 0.85rem;
}

/* Switch Toggle styles for Dev panel */
.switch {
  position: relative;
  display: inline-block;
  width: 46px;
  height: 24px;
}

.switch input { 
  opacity: 0;
  width: 0;
  height: 0;
}

.slider {
  position: absolute;
  cursor: pointer;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(255,255,255,0.1);
  transition: .4s;
  border-radius: 34px;
  border: 1px solid rgba(255,255,255,0.05);
}

.slider:before {
  position: absolute;
  content: "";
  height: 16px;
  width: 16px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .4s;
  border-radius: 50%;
}

input:checked + .slider {
  background-color: var(--secondary-teal);
}

input:checked + .slider:before {
  transform: translateX(22px);
  background-color: #050d14;
}

/* Confetti Overlay */
#confetti-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  pointer-events: none;
  z-index: 9999;
}

/* Footer style */
.app-footer {
  text-align: center;
  padding: 30px;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid rgba(255,255,255,0.05);
  margin-top: 50px;
}

.footer-credit {
  color: var(--accent-gold);
  font-weight: 500;
  font-size: 0.9rem;
  letter-spacing: 0.5px;
  margin-bottom: 5px;
  animation: glow-text 3s infinite alternate;
}

@keyframes glow-text {
  0% { text-shadow: 0 0 2px rgba(255, 209, 102, 0.2); }
  100% { text-shadow: 0 0 8px rgba(255, 209, 102, 0.6); }
}

/* คำใบ้พิเศษ */
.hint-item.special-hint {
  background: linear-gradient(135deg, rgba(255, 209, 102, 0.15) 0%, rgba(162, 155, 254, 0.05) 100%);
  border-left: 4px solid var(--accent-gold);
  border-right: 1px solid rgba(255, 209, 102, 0.15);
  box-shadow: 0 4px 15px rgba(255, 209, 102, 0.05);
}

.hint-item.special-hint.locked {
  background: rgba(255, 255, 255, 0.01);
  border-left: 4px dashed rgba(255, 255, 255, 0.2);
  border-right: none;
  opacity: 0.6;
}

.hint-item.special-hint .hint-number {
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  gap: 6px;
}

/* แผงทายสายรหัส */
.guessing-panel {
  background: rgba(0, 0, 0, 0.25);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 15px;
  padding: 20px;
  margin-bottom: 25px;
  box-shadow: inset 0 0 10px rgba(0, 0, 0, 0.3);
  transition: var(--transition-smooth);
}

.guessing-panel.locked {
  border-color: rgba(255, 255, 255, 0.03);
  opacity: 0.75;
  text-align: center;
  padding: 15px;
}

.guessing-title {
  font-family: 'Kanit', sans-serif;
  font-size: 1.05rem;
  margin-bottom: 15px;
  color: var(--accent-gold);
  display: flex;
  align-items: center;
  gap: 8px;
}

.guess-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.guess-select {
  width: 100%;
  background: rgba(0, 0, 0, 0.35);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  padding: 12px 15px;
  color: var(--text-light);
  font-family: 'Prompt', sans-serif;
  font-size: 0.9rem;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg fill='white' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/><path d='M0 0h24v24H0z' fill='none'/></svg>");
  background-repeat: no-repeat;
  background-position: right 10px fill-center;
  background-position-x: calc(100% - 12px);
  background-position-y: 50%;
  transition: var(--transition-smooth);
}

.guess-select:focus {
  outline: none;
  border-color: var(--secondary-teal);
  box-shadow: 0 0 8px var(--teal-glow);
}

.guess-select option {
  background-color: #0b1f2d;
  color: var(--text-light);
}

.guess-submit-btn {
  width: 100%;
  background: linear-gradient(135deg, var(--secondary-teal) 0%, #00b4d8 100%);
  color: #050d14;
  border: none;
  border-radius: 10px;
  padding: 12px;
  font-family: 'Kanit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 12px var(--teal-glow);
}

.guess-submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--secondary-teal);
}

.guess-submit-btn:active {
  transform: translateY(0);
}

/* Congratulations Modal Pop-up */
.congrats-modal {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(5, 13, 20, 0.85);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 10000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.5s ease;
}

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

.congrats-content {
  background: linear-gradient(145deg, #102a3a 0%, #081620 100%);
  border: 2px solid var(--secondary-teal);
  box-shadow: 0 0 40px var(--secondary-teal);
  border-radius: 25px;
  width: 90%;
  max-width: 500px;
  padding: 40px 30px;
  text-align: center;
  transform: scale(0.7);
  transition: transform 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  position: relative;
}

.congrats-modal.open .congrats-content {
  transform: scale(1);
}

.congrats-icon {
  font-size: 4.5rem;
  margin-bottom: 15px;
  animation: pulse-icon 1.5s infinite alternate;
}

@keyframes pulse-icon {
  0% { transform: scale(1); filter: drop-shadow(0 0 2px var(--gold-glow)); }
  100% { transform: scale(1.1); filter: drop-shadow(0 0 15px var(--accent-gold)); }
}

.congrats-title {
  font-family: 'Kanit', sans-serif;
  font-size: 2rem;
  color: var(--accent-gold);
  margin-bottom: 10px;
}

.congrats-subtitle {
  font-size: 1.1rem;
  color: var(--text-light);
  line-height: 1.6;
  margin-bottom: 20px;
}

.congrats-box {
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 15px;
  padding: 15px;
  margin-top: 15px;
  color: var(--secondary-teal);
  font-size: 1.2rem;
  font-weight: 600;
}

.congrats-close-btn {
  background: linear-gradient(135deg, var(--accent-gold) 0%, var(--accent-orange) 100%);
  color: #050d14;
  border: none;
  border-radius: 12px;
  padding: 12px 30px;
  font-family: 'Kanit', sans-serif;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  margin-top: 25px;
  transition: var(--transition-smooth);
  box-shadow: 0 4px 12px var(--gold-glow);
}

.congrats-close-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 18px var(--accent-gold);
}