/* ============================================================
   MONEY FOR NOTHING — Base Styles
   Reset, layout, glassmorphism, scrollbars, animations
   ============================================================ */

/* ─── Reset ─── */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--weight-normal);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--bg-primary);
  min-height: 100vh;
  overflow-x: hidden;
}

/* Background ambient glow */
body::before {
  content: '';
  position: fixed;
  top: -30%;
  left: -20%;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, hsla(265, 90%, 65%, 0.04) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

body::after {
  content: '';
  position: fixed;
  bottom: -30%;
  right: -20%;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, hsla(145, 80%, 50%, 0.03) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

a {
  color: var(--accent-blue);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-default);
}

a:hover {
  color: var(--accent-purple);
}

img { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
input, select, textarea { font-family: inherit; }

/* ─── Scrollbar ─── */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

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

::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-full);
}

::-webkit-scrollbar-thumb:hover {
  background: rgba(255, 255, 255, 0.2);
}

/* ─── App Layout ─── */
.app-layout {
  display: flex;
  min-height: 100vh;
  position: relative;
  z-index: var(--z-base);
}

/* ─── Sidebar ─── */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  z-index: var(--z-sticky);
  transition: width var(--duration-slow) var(--ease-default),
              transform var(--duration-slow) var(--ease-default);
  overflow-y: auto;
  overflow-x: hidden;
}

.sidebar-header {
  padding: var(--space-6) var(--space-5);
  border-bottom: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

.sidebar-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.sidebar-logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-lg);
  background: var(--gradient-profit);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  flex-shrink: 0;
  box-shadow: var(--shadow-glow-profit);
}

.sidebar-logo-text {
  display: flex;
  flex-direction: column;
}

.sidebar-logo-text h1 {
  font-size: var(--text-md);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
  background: var(--gradient-profit);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.sidebar-logo-text span {
  font-size: var(--text-xs);
  color: var(--text-tertiary);
  font-weight: var(--weight-medium);
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.sidebar-nav {
  padding: var(--space-4) var(--space-3);
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.nav-section-title {
  font-size: var(--text-xs);
  font-weight: var(--weight-semibold);
  color: var(--text-tertiary);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: var(--space-4) var(--space-3) var(--space-2);
}

.nav-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-3);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: var(--text-sm);
  font-weight: var(--weight-medium);
  border: none;
  background: none;
  width: 100%;
  text-align: left;
  transition: all var(--duration-fast) var(--ease-default);
  position: relative;
  overflow: hidden;
}

.nav-item:hover {
  color: var(--text-primary);
  background: var(--glass-bg-hover);
}

.nav-item.active {
  color: var(--accent-profit);
  background: var(--accent-profit-bg);
}

.nav-item.active::before {
  content: '';
  position: absolute;
  left: 0;
  top: 25%;
  height: 50%;
  width: 3px;
  background: var(--accent-profit);
  border-radius: 0 var(--radius-full) var(--radius-full) 0;
}

.nav-item-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  opacity: 0.7;
}

.nav-item.active .nav-item-icon {
  opacity: 1;
}

.sidebar-footer {
  padding: var(--space-4) var(--space-3);
  border-top: 1px solid var(--border-subtle);
  flex-shrink: 0;
}

/* ─── Main Content ─── */
.main-content {
  flex: 1;
  margin-left: var(--sidebar-width);
  min-height: 100vh;
  transition: margin-left var(--duration-slow) var(--ease-default);
}

.page-header {
  padding: var(--space-6) var(--space-8);
  border-bottom: 1px solid var(--border-subtle);
  background: var(--glass-bg);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
}

.page-header-inner {
  max-width: var(--content-max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.page-title {
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  line-height: var(--leading-tight);
}

.page-subtitle {
  font-size: var(--text-sm);
  color: var(--text-secondary);
  margin-top: var(--space-1);
}

.page-body {
  padding: var(--space-8);
  max-width: var(--content-max-width);
  margin: 0 auto;
}

/* ─── Page Sections ─── */
.page-view {
  display: none;
  animation: fadeSlideIn var(--duration-slow) var(--ease-out);
}

.page-view.active {
  display: block;
}

/* ─── Glassmorphism Utility ─── */
.glass {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-xl);
}

.glass:hover {
  background: var(--glass-bg-hover);
  border-color: var(--glass-border-hover);
}

/* ─── Grid Layouts ─── */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-5);
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-5);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
}

.grid-1 {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-5);
}

/* ─── Animations ─── */
@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

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

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes scaleIn {
  from {
    opacity: 0;
    transform: scale(0.95);
  }
  to {
    opacity: 1;
    transform: scale(1);
  }
}

@keyframes countUp {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.animate-fade-in {
  animation: fadeIn var(--duration-slow) var(--ease-out);
}

.animate-slide-in {
  animation: fadeSlideIn var(--duration-slow) var(--ease-out);
}

.animate-scale-in {
  animation: scaleIn var(--duration-normal) var(--ease-bounce);
}

/* Staggered children animation */
.stagger-children > * {
  animation: fadeSlideIn var(--duration-slow) var(--ease-out) backwards;
}
.stagger-children > *:nth-child(1) { animation-delay: 0ms; }
.stagger-children > *:nth-child(2) { animation-delay: 60ms; }
.stagger-children > *:nth-child(3) { animation-delay: 120ms; }
.stagger-children > *:nth-child(4) { animation-delay: 180ms; }
.stagger-children > *:nth-child(5) { animation-delay: 240ms; }
.stagger-children > *:nth-child(6) { animation-delay: 300ms; }
.stagger-children > *:nth-child(7) { animation-delay: 360ms; }
.stagger-children > *:nth-child(8) { animation-delay: 420ms; }

/* ─── Utility Classes ─── */
.text-profit { color: var(--accent-profit); }
.text-danger { color: var(--accent-danger); }
.text-warning { color: var(--accent-warning); }
.text-purple { color: var(--accent-purple); }
.text-blue { color: var(--accent-blue); }
.text-gold { color: var(--accent-gold); }
.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }

.text-mono { font-family: var(--font-mono); }
.text-center { text-align: center; }
.text-right { text-align: right; }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-center { justify-content: center; }
.gap-1 { gap: var(--space-1); }
.gap-2 { gap: var(--space-2); }
.gap-3 { gap: var(--space-3); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mt-8 { margin-top: var(--space-8); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ─── Empty State ─── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--space-16) var(--space-8);
  text-align: center;
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: var(--space-4);
  opacity: 0.3;
}

.empty-state-title {
  font-size: var(--text-lg);
  font-weight: var(--weight-semibold);
  color: var(--text-secondary);
  margin-bottom: var(--space-2);
}

.empty-state-text {
  font-size: var(--text-sm);
  color: var(--text-tertiary);
  max-width: 400px;
  line-height: var(--leading-relaxed);
}