/**
 * DXfi Staking Platform Styles
 * Modern, clean design for staking interface
 */

/* ===== CSS Variables ===== */
:root {
  /* Colors */
  --color-primary: #6366f1;
  --color-primary-dark: #4f46e5;
  --color-primary-light: #818cf8;

  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-error: #ef4444;

  --color-bronze: #cd7f32;
  --color-silver: #c0c0c0;
  --color-gold: #ffd700;

  /* Background */
  --bg-primary: #0f172a;
  --bg-secondary: #1e293b;
  --bg-tertiary: #334155;
  --bg-card: #1e293b;
  --bg-overlay: rgba(15, 23, 42, 0.8);

  /* Text */
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;

  /* Borders */
  --border-color: #334155;
  --border-radius: 12px;
  --border-radius-sm: 8px;

  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;

  /* Typography */
  --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 2rem;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-base: 300ms ease;
  --transition-slow: 500ms ease;
}

/* Light theme (if needed) */
@media (prefers-color-scheme: light) {
  :root {
    --bg-primary: #ffffff;
    --bg-secondary: #f8fafc;
    --bg-tertiary: #f1f5f9;
    --bg-card: #ffffff;
    --bg-overlay: rgba(255, 255, 255, 0.9);

    --text-primary: #0f172a;
    --text-secondary: #334155;
    --text-muted: #64748b;

    --border-color: #e2e8f0;
  }
}

/* ===== Reset & Base ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ===== Standard Scrollbar Styling (Cross-Platform Consistency) ===== */
/* Ensures consistent page width across all platforms by standardizing scrollbar width */
html {
  /* Reserve space for scrollbar to prevent layout shift */
  scrollbar-gutter: stable;
}

/* Webkit browsers (Chrome, Safari, Edge) */
::-webkit-scrollbar {
  width: 12px;
  height: 12px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.2);
  border-radius: 6px;
  border: 2px solid transparent;
  background-clip: padding-box;
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.3);
  background-clip: padding-box;
}

html.light ::-webkit-scrollbar-thumb {
  background: rgba(0, 0, 0, 0.2);
  background-clip: padding-box;
}

html.light ::-webkit-scrollbar-thumb:hover {
  background: rgba(0, 0, 0, 0.3);
  background-clip: padding-box;
}

/* Firefox */
* {
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

html.light * {
  scrollbar-color: rgba(0, 0, 0, 0.2) transparent;
}

/* ===== Navigation ===== */
.nav {
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: var(--spacing-md) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-lg);
}

.nav-brand .brand-text {
  font-size: var(--font-size-xl);
  font-weight: 700;
  color: var(--color-primary);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: var(--spacing-lg);
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-base);
}

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

.nav-wallet {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.wallet-info {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: var(--bg-tertiary);
  border-radius: var(--border-radius-sm);
}

.wallet-address {
  font-family: 'Courier New', monospace;
  font-size: var(--font-size-sm);
  color: var(--text-secondary);
}

.wallet-balance {
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
  font-weight: 600;
}

.balance-label {
  color: var(--text-muted);
  font-size: var(--font-size-sm);
}

.balance-value {
  color: var(--color-primary);
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-lg);
  font-size: var(--font-size-base);
  font-weight: 600;
  border: none;
  border-radius: var(--border-radius-sm);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Light mode: Keep text black for gradient CTAs in positions and staking */
html.light .btn-primary {
  color: #0f172a !important;
}

.btn-secondary {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.btn-secondary:hover {
  background-color: var(--bg-card);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

.btn-pill {
  border-radius: 20px;
}

.btn-large {
  padding: var(--spacing-md) var(--spacing-xl);
  font-size: var(--font-size-lg);
}

.btn-tier {
  width: 100%;
  margin-top: var(--spacing-md);
  padding: var(--spacing-md);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.btn-tier.bronze {
  background-color: var(--color-bronze);
  color: white;
}

.btn-tier.silver {
  background-color: var(--color-silver);
  color: var(--bg-primary);
}

.btn-tier.gold {
  background-color: var(--color-gold);
  color: var(--bg-primary);
}

.btn-link {
  background: none;
  border: none;
  color: var(--color-primary);
  cursor: pointer;
  text-decoration: underline;
  font-size: var(--font-size-sm);
}

/* ===== Main Content ===== */
.main {
  flex: 1;
  padding: var(--spacing-2xl) 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

/* ===== Hero Section ===== */
.hero {
  text-align: center;
  padding: var(--spacing-2xl) 0;
  margin-bottom: var(--spacing-2xl);
}

.hero-title {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: var(--font-size-lg);
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

/* ===== Cards ===== */
.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-md);
}

/* ===== Wallet Prompt ===== */
.wallet-prompt {
  text-align: center;
  max-width: 500px;
  margin: 0 auto var(--spacing-2xl);
}

.prompt-icon {
  font-size: 4rem;
  margin-bottom: var(--spacing-md);
}

.wallet-prompt h2 {
  margin-bottom: var(--spacing-md);
}

.wallet-prompt p {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-xl);
}

/* ===== Staking Interface ===== */
.staking-interface {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xl);
}

.staking-status h2,
.staking-options h2 {
  margin-bottom: var(--spacing-md);
}

.section-description {
  color: var(--text-secondary);
  margin-bottom: var(--spacing-lg);
}

/* ===== Tier Cards ===== */
.tiers-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
}

.tier-card {
  background-color: var(--bg-tertiary);
  border: 2px solid var(--border-color);
  border-radius: var(--border-radius);
  padding: var(--spacing-xl);
  text-align: center;
  transition: all var(--transition-base);
  position: relative;
}

.tier-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.tier-card.featured {
  border-color: var(--color-gold);
  background: linear-gradient(135deg, var(--bg-tertiary), rgba(255, 215, 0, 0.1));
}

.tier-badge-featured {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-gold);
  color: var(--bg-primary);
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  font-size: var(--font-size-xs);
  font-weight: 700;
  text-transform: uppercase;
}

.tier-header {
  margin-bottom: var(--spacing-lg);
}

.tier-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-sm);
}

.tier-name {
  font-size: var(--font-size-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-md);
}

.tier-details {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.tier-duration {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.duration-value {
  font-size: var(--font-size-3xl);
  font-weight: 700;
  color: var(--color-primary);
}

.duration-unit {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
  text-transform: uppercase;
}

.tier-discount {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
}

.discount-value {
  font-size: var(--font-size-2xl);
  font-weight: 700;
  color: var(--color-success);
}

.discount-label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.tier-reward {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm);
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
}

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

.reward-value {
  font-weight: 700;
  color: var(--color-primary);
}

/* ===== Active Stake Info ===== */
.active-stake-info {
  margin-top: var(--spacing-lg);
}

.stake-details {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--spacing-lg);
}

.stake-details>div {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.stake-details .label {
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.stake-details .value {
  font-size: var(--font-size-lg);
  font-weight: 600;
  color: var(--text-primary);
}

.tier-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-md);
  border-radius: var(--border-radius-sm);
  font-weight: 700;
  text-transform: uppercase;
  font-size: var(--font-size-sm);
}

/* ===== Modal ===== */
.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-overlay);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--border-color);
}

.modal-close {
  background: none;
  border: none;
  font-size: var(--font-size-2xl);
  color: var(--text-secondary);
  cursor: pointer;
  padding: 0;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--border-radius-sm);
  transition: all var(--transition-base);
}

.modal-close:hover {
  background-color: var(--bg-tertiary);
  color: var(--text-primary);
}

.modal-body {
  padding: var(--spacing-lg);
}

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: var(--spacing-md);
  padding: var(--spacing-lg);
  border-top: 1px solid var(--border-color);
}

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

.form-group label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--text-primary);
}

.form-input {
  width: 100%;
  padding: var(--spacing-md);
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-size: var(--font-size-base);
  transition: all var(--transition-base);
}

.form-input:focus {
  outline: 2px solid var(--color-primary, #1FDDFE);
  outline-offset: 2px;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(31, 221, 254, 0.15);
}

.form-helper {
  display: flex;
  justify-content: space-between;
  margin-top: var(--spacing-xs);
  font-size: var(--font-size-sm);
  color: var(--text-muted);
}

.form-summary {
  background-color: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding: var(--spacing-sm) 0;
}

.summary-label {
  color: var(--text-secondary);
}

.summary-value {
  font-weight: 600;
  color: var(--text-primary);
}

.form-warning {
  background-color: rgba(245, 158, 11, 0.1);
  border: 1px solid var(--color-warning);
  border-radius: var(--border-radius-sm);
  padding: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.form-warning p {
  color: var(--color-warning);
  font-size: var(--font-size-sm);
  margin: 0;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: var(--bg-overlay);
  backdrop-filter: blur(4px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  z-index: 2000;
}

.loading-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--border-color);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 1s linear infinite;
}

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

.loading-text {
  margin-top: var(--spacing-lg);
  color: var(--text-secondary);
  font-weight: 600;
}

/* ===== Info Section ===== */
.info-section {
  margin-top: var(--spacing-2xl);
  padding: var(--spacing-2xl) 0;
  background-color: var(--bg-secondary);
}

.info-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-xl);
}

.info-card {
  text-align: center;
}

.info-icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.info-card h3 {
  margin-bottom: var(--spacing-sm);
}

.info-card p {
  color: var(--text-secondary);
}

/* ===== Footer ===== */
.footer {
  background: transparent !important;
  backdrop-filter: none !important;
  border-top: 1px solid var(--border-color);
  padding: var(--spacing-xl) 0;
  margin-top: var(--spacing-2xl);
}

.footer .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-md);
}

.footer-links {
  display: flex;
  gap: var(--spacing-lg);
}

.footer-links a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-base);
}

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

/* ===== Responsive ===== */
@media (max-width: 768px) {
  .nav-container {
    flex-wrap: wrap;
  }

  .nav-links {
    order: 3;
    width: 100%;
    justify-content: center;
    margin-top: var(--spacing-md);
  }

  .tiers-grid {
    grid-template-columns: 1fr;
  }

  .stake-details {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: var(--font-size-2xl);
  }
}