/**
 * Common Styles & Reusable Components
 * Shared layout, typography, and component patterns
 *
 * Requires: reset.css and variables.css to be loaded first
 */

/* ============================================
   BASE STYLES
   ============================================ */

body {
  background-color: var(--color-bg-primary);
  background-image:
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 2px,
      rgba(255, 255, 255, 0.03) 2px,
      rgba(255, 255, 255, 0.03) 4px
    );
  color: var(--color-text-primary);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
}

/* Desktop-only message for mobile screens */
@media (max-width: 767px) {
  body::before {
    content: "This experience is designed for desktop browsers. Please view on a larger screen.";
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: var(--space-lg);
    background: var(--color-error);
    color: var(--color-text-primary);
    text-align: center;
    font-weight: var(--font-semibold);
    z-index: var(--z-modal);
  }

  body > * {
    display: none;
  }
}


/* ============================================
   LAYOUT CONTAINERS
   ============================================ */

.container {
  width: 100%;
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-md);
  padding-right: var(--space-md);
}

.container-sm { max-width: var(--container-sm); }
.container-md { max-width: var(--container-md); }
.container-lg { max-width: var(--container-lg); }
.container-xl { max-width: var(--container-xl); }

/* Centered content */
.center {
  display: flex;
  justify-content: center;
  align-items: center;
}

.center-vertical {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: 100vh;
}

.center-content {
  text-align: center;
}


/* ============================================
   TYPOGRAPHY
   ============================================ */

/* Headings - 90's chunky style */
h1, .h1 {
  font-family: var(--font-display);
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  text-shadow: 3px 3px 0 rgba(0, 0, 0, 0.5);
  letter-spacing: 0.05em;
}

h2, .h2 {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.5);
  letter-spacing: 0.05em;
}

h3, .h3 {
  font-family: var(--font-display);
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-text-primary);
  text-shadow: 2px 2px 0 rgba(0, 0, 0, 0.5);
}

h4, .h4 {
  font-family: var(--font-body);
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-text-primary);
}

/* Body text variants */
.text-large {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
}

.text-small {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

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

/* Story text - special formatting for narrative sections */
.story-text {
  font-family: var(--font-display);
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-text-primary);
  max-width: var(--container-md);
  margin: 0 auto;
}

.story-text p + p {
  margin-top: var(--space-lg);
}


/* ============================================
   BUTTONS
   ============================================ */

.btn {
  display: inline-block;
  padding: var(--space-md) var(--space-xl);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: var(--font-semibold);
  text-align: center;
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  border-radius: 0;
  border: var(--border-width-thick) solid transparent;
  cursor: pointer;
  user-select: none;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: var(--focus-outline);
  outline-offset: var(--focus-outline-offset);
}

/* Primary button - 90's beveled style */
.btn-primary {
  background-color: var(--color-accent-primary);
  color: var(--color-text-on-accent);
  border: none;
  border-top: 4px solid var(--bevel-highlight);
  border-left: 4px solid var(--bevel-highlight);
  border-right: 4px solid var(--bevel-dark-shadow);
  border-bottom: 4px solid var(--bevel-dark-shadow);
  box-shadow:
    inset 2px 2px 0 rgba(255, 255, 255, 0.2),
    inset -2px -2px 0 rgba(0, 0, 0, 0.4),
    3px 3px 0 rgba(0, 0, 0, 0.4);
  font-weight: var(--font-bold);
  text-shadow: 1px 1px 0 rgba(0, 0, 0, 0.5);
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-hover);
  border-top: 4px solid rgba(255, 255, 255, 0.3);
  border-left: 4px solid rgba(255, 255, 255, 0.3);
}

.btn-primary:active:not(:disabled) {
  border-top: 4px solid var(--bevel-dark-shadow);
  border-left: 4px solid var(--bevel-dark-shadow);
  border-right: 4px solid var(--bevel-highlight);
  border-bottom: 4px solid var(--bevel-highlight);
  box-shadow:
    inset -2px -2px 0 rgba(255, 255, 255, 0.2),
    inset 2px 2px 0 rgba(0, 0, 0, 0.4);
  transform: translate(2px, 2px);
}

/* Secondary button (outlined) */
.btn-secondary {
  background-color: transparent;
  color: var(--color-accent-primary);
  border-color: var(--color-accent-primary);
}

.btn-secondary:hover:not(:disabled) {
  background-color: var(--color-accent-primary);
  color: var(--color-text-on-accent);
  box-shadow: var(--glow-sm);
}

/* Success button */
.btn-success {
  background-color: var(--color-success);
  color: var(--color-text-primary);
  border-color: var(--color-success);
}

.btn-success:hover:not(:disabled) {
  opacity: 0.9;
  transform: translateY(-2px);
}

/* Disabled state */
.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
}

/* Button sizes */
.btn-small {
  padding: var(--space-sm) var(--space-lg);
  font-size: var(--text-sm);
}

.btn-large {
  padding: var(--space-lg) var(--space-2xl);
  font-size: var(--text-lg);
}


/* ============================================
   FORM INPUTS
   ============================================ */

.input {
  width: 100%;
  padding: var(--space-md);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg-elevated);
  border: none;
  border-top: 3px solid var(--bevel-dark-shadow);
  border-left: 3px solid var(--bevel-dark-shadow);
  border-right: 3px solid var(--bevel-highlight);
  border-bottom: 3px solid var(--bevel-highlight);
  border-radius: 0;
  box-shadow:
    inset 2px 2px 3px rgba(0, 0, 0, 0.5),
    inset -1px -1px 0 rgba(255, 255, 255, 0.1);
}

.input::placeholder {
  color: var(--color-text-muted);
}

.input:focus {
  border-color: var(--color-accent-primary);
  box-shadow: var(--glow-sm);
  outline: none;
}

.input:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Input with bottom border only (login page style) */
.input-underline {
  background-color: transparent;
  border: none;
  border-bottom: var(--border-width-thick) solid var(--border-color-light);
  border-radius: 0;
  padding: var(--space-md) 0;
}

.input-underline:focus {
  border-bottom-color: var(--color-accent-primary);
  box-shadow: none;
}

/* Textarea */
textarea.input {
  min-height: 120px;
  resize: vertical;
}

/* Label */
.label {
  display: block;
  margin-bottom: var(--space-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
}


/* ============================================
   CARDS
   ============================================ */

.card {
  background-color: var(--color-bg-secondary);
  border: none;
  border-top: 4px solid var(--bevel-highlight);
  border-left: 4px solid var(--bevel-highlight);
  border-right: 4px solid var(--bevel-dark-shadow);
  border-bottom: 4px solid var(--bevel-dark-shadow);
  border-radius: 0;
  padding: var(--space-lg);
  box-shadow:
    inset 2px 2px 0 rgba(255, 255, 255, 0.1),
    inset -2px -2px 0 rgba(0, 0, 0, 0.5),
    5px 5px 0 rgba(0, 0, 0, 0.3);
}

.card:hover {
  border-color: var(--border-color-light);
}

.card-interactive {
  cursor: pointer;
}

.card-interactive:hover {
  border-top: 5px solid rgba(255, 255, 255, 0.3);
  border-left: 5px solid rgba(255, 255, 255, 0.3);
}

.card-locked {
  background-color: var(--color-locked);
  opacity: 0.5;
  cursor: not-allowed;
}

.card-locked:hover {
  transform: none;
  box-shadow: none;
}

.card-completed {
  border-color: var(--color-success);
  position: relative;
}

.card-completed::after {
  content: "✓";
  position: absolute;
  top: var(--space-sm);
  right: var(--space-sm);
  font-size: var(--text-xl);
  color: var(--color-success);
}


/* ============================================
   MODALS & OVERLAYS
   ============================================ */

.overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--color-overlay);
  backdrop-filter: blur(4px);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: var(--z-overlay);
  padding: var(--space-lg);
}

.modal {
  background-color: var(--color-bg-secondary);
  border: none;
  border-top: 6px solid var(--bevel-highlight);
  border-left: 6px solid var(--bevel-highlight);
  border-right: 6px solid var(--bevel-dark-shadow);
  border-bottom: 6px solid var(--bevel-dark-shadow);
  border-radius: 0;
  padding: var(--space-2xl);
  max-width: var(--container-md);
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow:
    inset 3px 3px 0 rgba(255, 255, 255, 0.15),
    inset -3px -3px 0 rgba(0, 0, 0, 0.6),
    10px 10px 0 rgba(0, 0, 0, 0.5);
}

.modal-header {
  margin-bottom: var(--space-xl);
}

.modal-footer {
  margin-top: var(--space-xl);
  display: flex;
  justify-content: center;
  gap: var(--space-md);
}


/* ============================================
   GAME CONTAINER
   ============================================ */

.game-container {
  max-width: var(--container-lg);
  margin: 0 auto;
  padding: var(--space-xl);
}

.game-header {
  text-align: center;
  margin-bottom: var(--space-2xl);
}

.game-title {
  font-family: var(--font-display);
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  color: var(--color-accent-primary);
  margin-bottom: var(--space-sm);
}

.game-subtitle {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.game-content {
  background-color: var(--color-bg-secondary);
  border: none;
  border-top: 5px solid var(--bevel-highlight);
  border-left: 5px solid var(--bevel-highlight);
  border-right: 5px solid var(--bevel-dark-shadow);
  border-bottom: 5px solid var(--bevel-dark-shadow);
  border-radius: 0;
  padding: var(--space-xl);
  margin-bottom: var(--space-xl);
  box-shadow:
    inset 3px 3px 0 rgba(255, 255, 255, 0.1),
    inset -3px -3px 0 rgba(0, 0, 0, 0.5),
    6px 6px 0 rgba(0, 0, 0, 0.3);
}

.game-controls {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  margin-top: var(--space-xl);
}


/* ============================================
   NAVIGATION
   ============================================ */

.nav-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-lg) var(--space-xl);
  background-color: var(--color-bg-secondary);
  border-bottom: var(--border-width) solid var(--border-color);
}

.nav-link {
  color: var(--color-text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  transition: color var(--transition-base);
}

.nav-link:hover {
  color: var(--color-accent-primary);
}

.back-link::before {
  content: "← ";
  margin-right: var(--space-xs);
}


/* ============================================
   UTILITIES
   ============================================ */

/* Spacing utilities */
.mt-sm { margin-top: var(--space-sm); }
.mt-md { margin-top: var(--space-md); }
.mt-lg { margin-top: var(--space-lg); }
.mt-xl { margin-top: var(--space-xl); }
.mt-2xl { margin-top: var(--space-2xl); }

.mb-sm { margin-bottom: var(--space-sm); }
.mb-md { margin-bottom: var(--space-md); }
.mb-lg { margin-bottom: var(--space-lg); }
.mb-xl { margin-bottom: var(--space-xl); }
.mb-2xl { margin-bottom: var(--space-2xl); }

.gap-sm { gap: var(--space-sm); }
.gap-md { gap: var(--space-md); }
.gap-lg { gap: var(--space-lg); }

/* Flexbox utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }

/* Grid utilities */
.grid { display: grid; }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-5 { grid-template-columns: repeat(5, 1fr); }

/* Text utilities */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }
.uppercase { text-transform: uppercase; }

/* Color utilities */
.text-accent { color: var(--color-accent-primary); }
.text-success { color: var(--color-success); }
.text-error { color: var(--color-error); }

/* Display utilities */
.hidden { display: none; }
.block { display: block; }
.inline-block { display: inline-block; }


/* ============================================
   ANIMATIONS (see animations.css for more)
   ============================================ */

.fade-in {
  animation: fadeIn var(--transition-slow) ease-in;
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

.slide-up {
  animation: slideUp var(--transition-slow) ease-out;
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}


/* ============================================
   ERROR & SUCCESS MESSAGES
   ============================================ */

.message {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
}

.message-error {
  background-color: rgba(199, 75, 80, 0.15);
  border: var(--border-width) solid var(--color-error);
  color: var(--color-error);
}

.message-success {
  background-color: rgba(122, 158, 126, 0.15);
  border: var(--border-width) solid var(--color-success);
  color: var(--color-success);
}

.message-warning {
  background-color: rgba(212, 165, 116, 0.15);
  border: var(--border-width) solid var(--color-warning);
  color: var(--color-warning);
}


/* ============================================
   LOADING SPINNER
   ============================================ */

.spinner {
  width: 40px;
  height: 40px;
  border: 4px solid var(--color-bg-elevated);
  border-top-color: var(--color-accent-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

.spinner-small {
  width: 20px;
  height: 20px;
  border-width: 2px;
}