/*
 * Expresión Exprés - Main Stylesheet
 * A clean, mobile-first design for the word-guessing game
 */

/* ===== Base Styles ===== */
:root {
  /* Modern Dark Color palette */
    --primary-color: #6366f1; /* Indigo */
    --primary-dark: #4f46e5;
    --primary-light: rgba(99, 102, 241, 0.15);
    --secondary-color: #10b981; /* Emerald */
    --secondary-dark: #059669;
    --secondary-light: rgba(16, 185, 129, 0.15);
    --success-light: rgba(16, 185, 129, 0.15);
    --accent-color: #f59e0b; /* Amber */
    --accent-light: rgba(245, 158, 11, 0.15);
    --danger-color: #ef4444; /* Red */
    --danger-light: rgba(239, 68, 68, 0.15);
    --light-color: #1e1e2e; /* Dark background */
    --dark-color: #cdd6f4; /* Light text on dark background */
    --gray-color: #9ca3af;
    --gray-light: #374151;

    /* Glow effects */
    --primary-glow: 0 0 15px rgba(99, 102, 241, 0.5);
    --accent-glow: 0 0 15px rgba(245, 158, 11, 0.5);
    --success-glow: 0 0 15px rgba(16, 185, 129, 0.5);
    --danger-glow: 0 0 15px rgba(239, 68, 68, 0.5);

  /* Typography */
  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;

  /* Borders */
  --border-radius-sm: 4px;
  --border-radius-md: 8px;
  --border-radius-lg: 16px;

  /* Shadows */
    --shadow-sm: 0 2px 5px rgba(0,0,0,0.25), 0 1px 3px rgba(0,0,0,0.3);
    --shadow-md: 0 4px 10px rgba(0,0,0,0.25), 0 2px 5px rgba(0,0,0,0.15);
    --shadow-lg: 0 15px 35px rgba(0,0,0,0.25), 0 8px 15px rgba(0,0,0,0.15);

  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

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

html {
  font-size: 16px;
  height: 100%;
}

body {
  font-family: var(--font-family);
  color: var(--dark-color);
  background-color: var(--light-color);
  line-height: 1.5;
  height: 100%;
  padding: env(safe-area-inset-top) env(safe-area-inset-right) env(safe-area-inset-bottom) env(safe-area-inset-left);
  -webkit-tap-highlight-color: transparent;
  -webkit-touch-callout: none;
  background-image: linear-gradient(120deg, #1a1a2e, #16213e, #1e1e2e);
  background-attachment: fixed;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

p {
  margin-bottom: var(--spacing-md);
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--primary-dark);
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: 600px;
  margin: 0 auto;
  padding: var(--spacing-md);
  min-height: 100%;
  display: flex;
  flex-direction: column;
}

header {
  padding-bottom: var(--spacing-md);
  text-align: center;
}

main {
  flex: 1;
  display: flex;
  flex-direction: column;
}

footer {
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md) 0;
  text-align: center;
  font-size: 0.85rem;
  color: rgba(204, 214, 244, 0.7);
  text-shadow: 0 0 2px rgba(0, 0, 0, 0.5);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

/* ===== Components ===== */

/* App Title */
.app-title {
  color: var(--primary-color);
  font-size: 2.2rem;
  margin-bottom: var(--spacing-sm);
  text-shadow: 0 0 15px rgba(99, 102, 241, 0.6);
  font-weight: 800;
  letter-spacing: 1.5px;
}

.title-accent {
  color: var(--accent-color);
  text-shadow: 0 0 15px rgba(245, 158, 11, 0.6);
}

.app-title:hover {
  text-shadow: 0 0 20px rgba(99, 102, 241, 0.8);
}

/* Cards */
.card {
  background-color: rgba(30, 30, 46, 0.7);
  border-radius: var(--border-radius-md);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  margin-bottom: var(--spacing-lg);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.1);
}


.card-body {
  padding: var(--spacing-lg);
  color: var(--dark-color);
}

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 600;
  text-align: center;
  white-space: nowrap;
  vertical-align: middle;
  cursor: pointer;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  line-height: 1.5;
  border-radius: var(--border-radius-lg);
  transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
  background-color: var(--gray-light);
  color: var(--gray-color);
  border: none;
  box-shadow: var(--shadow-sm);
  user-select: none;
  -webkit-user-select: none;
  touch-action: manipulation;
  min-height: 3.5rem;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.5px;
}

.btn:hover {
  box-shadow: var(--shadow-md);
  opacity: 0.95;
  transform: translateY(-3px) scale(1.03);
}

.btn:active {
  box-shadow: var(--shadow-sm);
  transform: translateY(1px) scale(0.98);
}

.btn-primary {
  background-color: var(--primary-color);
  color: white;
  box-shadow: 0 4px 10px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  background-color: var(--primary-dark);
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 20px rgba(99, 102, 241, 0.5), var(--primary-glow);
}

.btn-secondary {
  background-color: rgba(57, 65, 81, 0.8);
  color: var(--dark-color);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-success {
  background-color: var(--secondary-color);
  color: white;
  box-shadow: 0 4px 10px rgba(16, 185, 129, 0.3);
}

.btn-success:hover {
  background-color: var(--secondary-dark);
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 20px rgba(16, 185, 129, 0.5), var(--success-glow);
}

.btn-danger {
  background-color: var(--danger-color);
  color: white;
  box-shadow: 0 4px 10px rgba(239, 68, 68, 0.3);
}

.btn-danger:hover {
  background-color: #e03131;
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 10px 20px rgba(239, 68, 68, 0.5), var(--danger-glow);
}

.btn-large {
  font-size: 1.5rem;
  padding: 1.4rem 2.8rem;
  min-height: 4.5rem;
  min-width: 260px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 500;
}

input[type="text"],
input[type="number"],
input[type="email"],
input[type="password"],
select {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  border: 1px solid var(--gray-light);
  border-radius: var(--border-radius-sm);
  background-color: rgba(15, 15, 30, 0.6);
  color: var(--dark-color);
  transition: border-color var(--transition-fast), box-shadow var(--transition-normal);
}

input[type="text"]:focus,
input[type="number"]:focus,
input[type="email"]:focus,
input[type="password"]:focus,
select:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 3px rgba(66, 133, 244, 0.2);
}

.range-container {
  display: flex;
  align-items: center;
}

input[type="range"] {
  flex: 1;
  margin-right: var(--spacing-md);
  accent-color: var(--primary-color);
}

/* Radio buttons */
.radio-container {
  margin-top: var(--spacing-sm);
}

.radio-option {
  display: flex;
  align-items: center;
  margin-bottom: var(--spacing-sm);
}

.radio-option input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  border: 2px solid var(--gray-color);
  border-radius: 50%;
  margin-right: var(--spacing-sm);
  position: relative;
  cursor: pointer;
  background-color: rgba(15, 15, 30, 0.6);
}

.radio-option input[type="radio"]:checked {
  border-color: var(--primary-color);
}

.radio-option input[type="radio"]:checked::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background-color: var(--primary-color);
  box-shadow: 0 0 5px rgba(99, 102, 241, 0.5);
}

.radio-option label {
  display: inline-block;
  margin-bottom: 0;
  cursor: pointer;
  padding: 5px 10px;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-normal);
}

.radio-option label.selected {
  background-color: var(--primary-light);
  color: var(--primary-color);
  font-weight: bold;
}

/* Welcome Page */
.welcome-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
}

.intro-text {
  font-size: 1.1rem;
  margin-bottom: var(--spacing-lg);
  text-align: center;
}

.game-rules {
  background-color: rgba(30, 41, 59, 0.7);
  border-radius: var(--border-radius-md);
  padding: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
  border-left: 3px solid var(--primary-color);
}

.game-rules ul {
  padding-left: var(--spacing-lg);
  margin-bottom: var(--spacing-md);
}

.game-rules ul ul {
  margin-top: var(--spacing-xs);
  margin-bottom: var(--spacing-xs);
}

.action-buttons {
  display: flex;
  justify-content: center;
  gap: var(--spacing-md);
}

/* Setup Page */
.setup-container {
  max-width: 500px;
  margin: 0 auto;
}

.game-logo {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.subtitle {
  color: rgba(204, 214, 244, 0.8);
  font-style: italic;
  text-shadow: 0 0 5px rgba(0, 0, 0, 0.3);
}

.form-actions {
  display: flex;
  justify-content: space-between;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}

/* Button animations */
@keyframes button-pulse {
  0% { transform: scale(1); }
  50% { transform: scale(1.02); }
  100% { transform: scale(1); }
}

.btn-primary.btn-large,
.btn-success.btn-large {
  animation: button-pulse 2s infinite ease-in-out;
}

.btn-primary.btn-large:hover,
.btn-success.btn-large:hover {
  animation: none;
}

/* Media Queries */
@media (max-width: 480px) {
  html {
    font-size: 14px;
  }

  .container {
    padding: var(--spacing-sm);
  }

  .btn {
    width: 100%;
    margin-bottom: var(--spacing-md);
    padding: 1.2rem 1.5rem;
    font-size: 1.3rem;
  }

  .btn-large {
    padding: 1.5rem 2rem;
    font-size: 1.6rem;
    min-height: 5rem; /* Even bigger on mobile for better touch targets */
  }

  .form-actions {
    flex-direction: column;
    gap: var(--spacing-md);
  }

  .app-title {
    font-size: 2rem;
  }
}