:root {
  --primary: #1b4d3e; 
  --primary-dark: #12352a;
  --secondary: #2c3e50;
  --bg-color: #1b4d3e; 
  --card-bg: #f1f8e9; 
  --header-bg: rgba(27, 77, 62, 0.85); 
  --header-height: 70px;
  --accent: #c5a059; 

--success-color: #1b4d3e; 
  --error-color: #d32f2f; 
  --bar-bg: #e8f5e9; 
  --gray-btn: #9ca3af; 
}

* {
  box-sizing: border-box;
  user-select: none;
  -webkit-tap-highlight-color: transparent;
}

body {
  margin: 0;
  padding: 0;
  font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background-color: var(--bg-color);
  background-image: radial-gradient(
    circle at top right,
    #1f5948 0%,
    var(--bg-color) 70%
  ); 
  color: var(--secondary);
  padding-top: calc(var(--header-height) + 60px);
}

header {
  position: fixed;
  top: 15px;
  left: 5%;
  width: 90%;
  height: var(--header-height);
  background: var(--header-bg);
  backdrop-filter: blur(10px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px; 
  border-radius: 50px;
  border: 1px solid rgba(197, 160, 89, 0.3);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
  z-index: 1000;
  box-sizing: border-box;
}

.logo {
  height: 35px; 
  background: white;
  padding: 4px 12px;
  border-radius: 8px;
}

.nav-links {
  display: none; 
  gap: 30px;
  align-items: center;
}

.nav-links a {
  color: #f1f8e9;
  text-transform: uppercase;
  font-size: 0.85rem;
  letter-spacing: 1px;
}

.nav-links a:hover {
  color: var(--accent); 
}

@media (max-width: 600px) {
  .nav-links {
    display: none;
  }
}

.container {
  max-width: 600px;
  margin: 0 auto;
  padding: 0 20px;
}

.card {
  background: var(--card-bg);
  border-radius: 40px 10px 40px 10px; 
  padding: 30px 20px; 
  border: none;
  box-shadow: -10px 10px 0px var(--accent); 
  text-align: left;
}

h2 {
  color: var(--primary);
  margin-bottom: 40px;
  font-size: 2.5rem;
  display: inline-block;
  border-bottom: 4px solid var(--accent); 
  padding-bottom: 5px;
}

.input-grid {
  display: grid;
  grid-template-columns: 1fr; 
  gap: 15px;
  margin-bottom: 20px;
  text-align: left;
}

label {
  display: block;
  margin-bottom: 5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--primary);
  font-size: 0.8rem;
}

input[type="number"] {
  width: 100%;
  padding: 10px 0;
  border: none;
  border-bottom: 2px solid #b0bec5;
  background-color: transparent; 
  border-radius: 0;
  font-size: 1.3rem;
  font-weight: 600;
  outline: none;
  transition: all 0.3s ease;
  color: var(--primary);
}

input[type="number"]:focus {
  border-bottom: 2px solid var(--accent); 
  box-shadow: none; 
}

.stats-bar {
  display: flex;
  justify-content: space-between;
  background: var(--bar-bg);
  padding: 12px 20px;
  border-radius: 8px;
  font-weight: 700;
  color: #636e72;
  margin-bottom: 30px;
  font-size: 1rem;
}

.score-badges {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 20px;
}
.badge {
  padding: 8px 25px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 800;
  color: white;
}
.badge-green {
  background-color: var(--success-color);
}
.badge-red {
  background-color: var(--error-color);
}

.question-box {
  font-size: 3.5rem;
  font-weight: 800;
  color: #2d3436;
  margin: 20px 0;
  min-height: 80px;
}

#user-ans {
  text-align: center;
  font-size: 2rem;
  font-weight: bold;
  width: 80%;
  margin: 15px auto 30px auto;
  letter-spacing: 1px;
  padding: 15px;
  border-radius: 12px;
  border: 2px solid #dfe6e9;
}
#user-ans::placeholder {
  color: #b2bec3;
}

.result-bubble {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  padding: 15px 40px;
  border-radius: 50px;
  background: var(--primary);
  color: white;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 30px;
  box-shadow: 0 5px 15px rgba(245, 130, 32, 0.3);
}

.btn {
  width: 100%; 
  min-width: unset;
  padding: 16px 20px;
  border: none;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 800;
  color: white;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  display: block;
  margin: 0 auto 10px auto;
}

.btn:active {
  transform: translateY(2px);
}

.btn-check {
  background-color: var(--primary);
  box-shadow: 0 10px 20px rgba(27, 77, 62, 0.4);
}

.btn-check:hover {
  background-color: var(--accent);
  color: var(--primary); 
  box-shadow: 0 10px 25px rgba(197, 160, 89, 0.4);
}
.btn-restart {
  background: var(--gray-btn);
}
.btn-stop {
  background: white;
  color: var(--error-color);
  border: 2px solid var(--error-color);
}

.feedback-text {
  font-size: 1.2rem;
  font-weight: 700;
  min-height: 30px;
  margin-bottom: 15px;
  color: #636e72;
}

.settings-box {
  background: transparent;
  padding: 20px;
  border-radius: 20px 5px 20px 5px;
  margin-bottom: 35px;
  border: 2px dashed var(--primary); 
}
.checkbox-row input[type="checkbox"] {
  accent-color: var(--primary); 
  width: 18px;
  height: 18px;
  cursor: pointer;
}

.back-refresh-btn {
  position: fixed;
  top: 80px;
  left: 15px;
  z-index: 1000;
  background: #d63737;
  color: white;
  border: none;
  padding: 10px 15px;
  border-radius: 8px;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}
.checkbox-row input {
  width: 20px;
  height: 20px;
  margin: 0;
  cursor: pointer;
  accent-color: var(--primary);
}
.checkbox-row label {
  margin: 0;
  cursor: pointer;
  font-weight: 600;
  color: #2d3436;
}
#auto-options {
  display: none;
  margin-top: 10px;
  padding-top: 10px;
  border-top: 1px dashed #ccc;
}

.screen {
  display: none;
}
.screen.active {
  display: block;
  animation: fadeIn 0.4s ease;
}
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#countdown-text {
  height: 30px;
  color: var(--primary);
  font-weight: 800;
  font-size: 1.2rem;
  margin-bottom: 10px;
}

@media (min-width: 600px) {
  header {
    padding: 0 40px;
  }

  .nav-links {
    display: flex; 
  }

  .card {
    padding: 50px;
    border-radius: 60px 10px 60px 10px;
    box-shadow: -15px 15px 0px var(--accent);
  }

  .input-grid {
    grid-template-columns: 1fr 1fr; 
    gap: 20px;
  }

  .btn {
    width: auto;
    min-width: 250px;
  }
}

.page-header {
  text-align: center;
  margin-bottom: 40px;
  padding: 0 20px;
}
.page-header h1 {
  color: var(--card-bg); 
  font-size: 2.8rem;
  margin-bottom: 5px;
  font-weight: 800;
  letter-spacing: 1px;
}
.page-header p {
  font-size: 1.1rem;
  color: var(--accent);
  margin: 0;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 2px;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 60px 20px;
}
.menu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(170px, 1fr));
  gap: 20px;
}

.menu-card {
  background-color: var(--card-bg);
  border-radius: 30px 8px 30px 8px; 
  padding: 30px 15px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  box-shadow: -6px 6px 0px var(--accent); 
  text-decoration: none;
  transition: all 0.3s ease;
  border: none;
}

.menu-card:hover {
  transform: translate(2px, -2px); 
  box-shadow: -10px 10px 0px var(--accent); 
  background-color: #ffffff; 
}

.icon-box {
  width: 60px;
  height: 60px;
  margin-bottom: 15px;
  border-radius: 50%;
  background-color: rgba(27, 77, 62, 0.08); 
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
}
.icon-box i {
  font-size: 32px;
  color: var(--primary);
  transition: color 0.3s ease;
}

.icon-box svg path,
.icon-box svg rect {
  stroke: var(--primary) !important;
  transition: all 0.3s;
}
.icon-box svg circle {
  fill: var(--primary) !important;
  transition: all 0.3s;
}
.icon-box svg circle[stroke] {
  stroke: var(--primary) !important;
  fill: none !important;
}

.menu-card:hover .icon-box {
  background-color: var(--primary);
}
.menu-card:hover .icon-box i {
  color: var(--accent);
}
.menu-card:hover .icon-box svg path,
.menu-card:hover .icon-box svg rect {
  stroke: var(--accent) !important;
}
.menu-card:hover .icon-box svg circle {
  fill: var(--accent) !important;
}

.menu-label {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--primary); 
}

.social-footer {
  background-color: transparent;
  padding: 30px 0;
  margin-top: 40px;
  text-align: center;
}
.social-container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 15px;
  flex-wrap: wrap;
}
.social-btn {
  width: 45px;
  height: 45px;
  border-radius: 50%;
  background-color: var(--card-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 1.2rem;
  transition: all 0.3s ease;
}
.social-btn:hover {
  background-color: var(--accent);
  color: var(--primary);
  transform: translateY(-3px);
}
.divider-vertical {
  width: 1px;
  height: 30px;
  background-color: var(--primary);
  margin: 0 10px;
  opacity: 0.3;
}

@media (max-width: 600px) {
  .menu-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
  }
  .icon-box {
    width: 55px;
    height: 55px;
  }
  .icon-box i {
    font-size: 24px;
  }
  .page-header h1 {
    font-size: 2rem;
  }
}

.social-dock {
  padding: 40px 0;
  display: flex;
  justify-content: center;
}

.dock-container {
  background: var(--header-bg); 
  backdrop-filter: blur(10px);
  padding: 10px 30px;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 20px;
  border: 1px solid rgba(197, 160, 89, 0.3);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.2);
}

.dock-item {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--card-bg);
  font-weight: 700;
  font-size: 0.9rem;
  transition: 0.3s;
}

.dock-item:hover {
  color: var(--accent);
}

.dock-divider {
  width: 1px;
  height: 20px;
  background: var(--accent);
  opacity: 0.5;
}