/* ============================================================
   Components — EXM Games
   ============================================================ */

/* --- Navigation --- */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(19, 26, 41, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--space-md) var(--space-lg);
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-game);
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.04em;
}

.nav-brand img {
  height: 28px;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  color: var(--color-text-secondary);
  font-size: 0.8125rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-text);
}

.nav-links a.active {
  position: relative;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -6px;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-sm);
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  transition: transform 0.25s ease, opacity 0.25s ease;
  transform-origin: center;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* --- Buttons --- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-game);
  font-size: 0.875rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: var(--radius-sm);
  transition: all 0.2s ease;
  text-decoration: none;
  line-height: 1;
  cursor: pointer;
  border: none;
  position: relative;
  overflow: hidden;
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
  box-shadow: 0 0 20px var(--color-accent-glow), 0 4px 12px rgba(0,0,0,0.3);
}

.btn-primary:hover {
  background: #2563eb;
  box-shadow: 0 0 30px var(--color-accent-glow), 0 6px 16px rgba(0,0,0,0.4);
  transform: translateY(-1px);
}

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

.btn-secondary {
  background: var(--color-bg-surface);
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.btn-secondary:hover {
  background: #2a3652;
  border-color: rgba(255,255,255,0.25);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border-strong);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.3);
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.5rem 1rem;
  font-size: 0.75rem;
}

.btn:disabled,
.btn.disabled {
  opacity: 0.4;
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none;
  transform: none;
}

.btn-full {
  width: 100%;
}

/* --- Cards --- */

.card {
  background: var(--color-bg-elevated);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-xl);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.card-interactive {
  cursor: pointer;
}

.card-interactive:hover {
  border-color: var(--color-border-strong);
  transform: translateY(-2px);
}

.card-accent {
  border-color: var(--color-accent-glow);
}

/* --- Platform download cards --- */

.platform-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
}

.platform-card .platform-icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.platform-card .platform-name {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.platform-card .platform-meta {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
}

/* --- Forms --- */

.form-group {
  margin-bottom: var(--space-lg);
}

.form-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: var(--space-sm);
  color: var(--color-text-secondary);
}

.form-input {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-ui);
  font-size: 0.875rem;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

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

.form-input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.15);
}

.form-input.error {
  border-color: var(--color-danger);
}

.form-help {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

.form-error {
  font-size: 0.75rem;
  color: var(--color-danger);
  margin-top: var(--space-xs);
}

textarea.form-input {
  resize: vertical;
  min-height: 100px;
}

select.form-input {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%238b9bb5' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

/* --- Checkbox (terms) --- */

.checkbox-group {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
}

.checkbox-group input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 20px;
  height: 20px;
  min-width: 20px;
  margin-top: 2px;
  border: 2px solid var(--color-border-strong);
  border-radius: 3px;
  background: var(--color-bg-surface);
  cursor: pointer;
  transition: all 0.2s ease;
  position: relative;
}

.checkbox-group input[type="checkbox"]:checked {
  background: var(--color-accent);
  border-color: var(--color-accent);
}

.checkbox-group input[type="checkbox"]:checked::after {
  content: '';
  position: absolute;
  left: 5px;
  top: 2px;
  width: 6px;
  height: 10px;
  border: solid #fff;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg);
}

.checkbox-group input[type="checkbox"]:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.checkbox-group label {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
  cursor: pointer;
}

.checkbox-group label a {
  color: var(--color-accent);
  text-decoration: underline;
}

/* --- Badge / Tag --- */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.625rem;
  font-size: 0.6875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  border-radius: 999px;
}

.badge-primary {
  background: rgba(59, 130, 246, 0.2);
  color: #60a5fa;
}

.badge-success {
  background: rgba(34, 197, 94, 0.2);
  color: #4ade80;
}

.badge-warning {
  background: rgba(234, 179, 8, 0.2);
  color: #facc15;
}

/* --- Alert / Callout --- */

.alert {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-sm);
  font-size: 0.8125rem;
  line-height: 1.5;
}

.alert-warning {
  background: rgba(234, 179, 8, 0.1);
  color: #facc15;
  border: 1px solid rgba(234, 179, 8, 0.2);
}

.alert-danger {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.2);
}

.alert-info {
  background: rgba(59, 130, 246, 0.1);
  color: #60a5fa;
  border: 1px solid rgba(59, 130, 246, 0.2);
}

.alert-success {
  background: rgba(34, 197, 94, 0.1);
  color: #4ade80;
  border: 1px solid rgba(34, 197, 94, 0.2);
}

/* --- Footer --- */

.site-footer {
  border-top: 1px solid var(--color-border);
  padding: var(--space-2xl) 0;
  margin-top: var(--space-4xl);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-lg);
  flex-wrap: wrap;
  gap: var(--space-md);
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.footer-brand img {
  height: 20px;
  width: auto;
  opacity: 0.5;
}

.footer-links {
  display: flex;
  gap: var(--space-xl);
}

.footer-links a {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  transition: color 0.2s ease;
}

.footer-links a:hover {
  color: var(--color-text-secondary);
}

/* --- Sections --- */

.section {
  padding: var(--space-3xl) 0;
}

.section-hero {
  padding: var(--space-4xl) 0 var(--space-3xl);
}

.section-subtle {
  padding: var(--space-2xl) 0;
  background: rgba(255, 255, 255, 0.015);
}

/* --- Steps / Install Guide --- */

.steps {
  counter-reset: step;
}

.step {
  position: relative;
  padding: var(--space-lg) 0 var(--space-lg) var(--space-3xl);
}

.step::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: var(--space-lg);
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-surface);
  border: 1px solid var(--color-border-strong);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-secondary);
}

.step:not(:last-child)::after {
  content: '';
  position: absolute;
  left: 13px;
  top: calc(var(--space-lg) + 36px);
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.step-title {
  font-size: 0.9375rem;
  font-weight: 700;
  margin-bottom: var(--space-xs);
  letter-spacing: 0.03em;
}

.step-desc {
  font-size: 0.8125rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.step-desc code {
  font-family: var(--font-game);
  font-size: 0.75rem;
  background: var(--color-bg-surface);
  padding: 0.125rem 0.375rem;
  border-radius: 3px;
}

/* --- Disclaimer Block --- */

.disclaimer-block {
  background: rgba(239, 68, 68, 0.06);
  border: 1px solid rgba(239, 68, 68, 0.15);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin: var(--space-xl) 0;
}

.disclaimer-block .disclaimer-icon {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.disclaimer-block .disclaimer-title {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #f87171;
  margin-bottom: var(--space-sm);
}

.disclaimer-block .disclaimer-text {
  font-size: 0.75rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- Download Gate --- */

.download-gate {
  max-width: 480px;
  margin: 0 auto;
}

.download-gate .terms-agreement {
  background: var(--color-bg-surface);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  margin-bottom: var(--space-lg);
}

/* --- Tabs --- */

.tabs {
  display: flex;
  gap: var(--space-xs);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-xl);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab {
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-game);
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
  cursor: pointer;
  background: none;
}

.tab:hover {
  color: var(--color-text-secondary);
}

.tab.active {
  color: var(--color-text);
  border-bottom-color: var(--color-accent);
}

/* --- Table --- */

.table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
}

th {
  text-align: left;
  padding: var(--space-sm) var(--space-md);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  border-bottom: 1px solid var(--color-border);
}

td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-secondary);
}

tr:hover td {
  background: rgba(255,255,255,0.02);
}

/* --- File Drop Zone --- */

.drop-zone {
  border: 2px dashed var(--color-border-strong);
  border-radius: var(--radius-md);
  padding: var(--space-2xl);
  text-align: center;
  transition: border-color 0.2s ease, background 0.2s ease;
  cursor: pointer;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--color-accent);
  background: rgba(59, 130, 246, 0.05);
}

.drop-zone-icon {
  font-size: 2rem;
  margin-bottom: var(--space-md);
}

.drop-zone-text {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.drop-zone-hint {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-top: var(--space-sm);
}

/* --- Upload Preview --- */

.upload-preview {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-surface);
  border-radius: var(--radius-sm);
  margin-top: var(--space-md);
}

.upload-preview-info {
  flex: 1;
  min-width: 0;
}

.upload-preview-name {
  font-size: 0.8125rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.upload-preview-meta {
  font-size: 0.6875rem;
  color: var(--color-text-muted);
  margin-top: 2px;
}

/* --- Stat Cards --- */

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: var(--space-md);
}

.stat-card {
  background: var(--color-bg-surface);
  border-radius: var(--radius-md);
  padding: var(--space-lg);
  text-align: center;
}

.stat-value {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
}

.stat-label {
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* --- Responsive: Mobile nav --- */

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(19, 26, 41, 0.98);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: var(--space-md) var(--space-lg);
    gap: var(--space-md);
  }

  .nav-links.open {
    display: flex;
  }
}