/* ========================================
   FreshWash Laundry Management System
   Core Design System
   ======================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Poppins:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── CSS Variables ── */
:root {
  /* Colors */
  --primary: #1D3557;
  --primary-light: #264573;
  --primary-dark: #0F1D33;
  --secondary: #A8DADC;
  --secondary-light: #C5E8EA;
  --accent: #457B9D;
  --accent-light: #5A9BBD;
  --cta: #FF6F61;
  --cta-hover: #E85A4F;
  --success: #10B981;
  --success-light: #D1FAE5;
  --warning: #F59E0B;
  --warning-light: #FEF3C7;
  --danger: #EF4444;
  --danger-light: #FEE2E2;
  --info: #3B82F6;
  --info-light: #DBEAFE;

  /* Backgrounds */
  --bg-primary: #0B1120;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.8);
  --bg-glass: rgba(255, 255, 255, 0.06);
  --bg-glass-hover: rgba(255, 255, 255, 0.1);
  --bg-sidebar: linear-gradient(180deg, #0F172A 0%, #1E293B 100%);
  --bg-input: rgba(255, 255, 255, 0.05);

  /* Text */
  --text-primary: #F8FAFC;
  --text-secondary: #94A3B8;
  --text-muted: #64748B;
  --text-dark: #1E293B;

  /* Borders */
  --border-glass: rgba(255, 255, 255, 0.1);
  --border-light: rgba(255, 255, 255, 0.06);
  --border-input: rgba(255, 255, 255, 0.15);

  /* Typography */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Sizing */
  --sidebar-width: 260px;
  --sidebar-collapsed: 72px;
  --header-height: 70px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --radius-full: 9999px;

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-xl: 0 16px 48px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 20px rgba(168, 218, 220, 0.3);
  --shadow-cta: 0 4px 16px rgba(255, 111, 97, 0.4);

  /* Transitions */
  --transition-fast: 150ms ease;
  --transition-normal: 300ms ease;
  --transition-slow: 500ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-body);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 600;
  line-height: 1.3;
  color: var(--text-primary);
}

h1 { font-size: clamp(1.75rem, 3vw, 2.25rem); }
h2 { font-size: clamp(1.5rem, 2.5vw, 1.875rem); }
h3 { font-size: clamp(1.125rem, 2vw, 1.375rem); }
h4 { font-size: 1.125rem; }

a {
  color: var(--secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover { color: var(--cta); }

img { max-width: 100%; height: auto; display: block; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.15);
  border-radius: 10px;
}
::-webkit-scrollbar-thumb:hover { background: rgba(255, 255, 255, 0.25); }

/* ── App Layout ── */
.app-layout {
  display: flex;
  min-height: 100vh;
}

.main-wrapper {
  flex: 1;
  margin-left: var(--sidebar-width);
  transition: margin-left var(--transition-normal);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.main-content {
  flex: 1;
  padding: 24px;
  margin-top: var(--header-height);
}

/* ── Sidebar ── */
.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  width: var(--sidebar-width);
  height: 100vh;
  background: var(--bg-sidebar);
  border-right: 1px solid var(--border-glass);
  z-index: 100;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
  overflow: hidden;
}

.sidebar-header {
  padding: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--border-glass);
  min-height: 70px;
}

.sidebar-logo {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  object-fit: cover;
  flex-shrink: 0;
}

.sidebar-brand {
  display: flex;
  flex-direction: column;
}

.sidebar-brand h2 {
  font-size: 1.125rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--secondary), var(--cta));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
}

.sidebar-brand span {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1.5px;
}

.sidebar-nav {
  flex: 1;
  padding: 12px;
  overflow-y: auto;
}

.nav-section {
  margin-bottom: 8px;
}

.nav-section-title {
  font-size: 0.65rem;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--text-muted);
  padding: 12px 12px 6px;
  font-weight: 600;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all var(--transition-fast);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

.nav-link::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 3px;
  height: 100%;
  background: var(--cta);
  border-radius: 0 4px 4px 0;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

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

.nav-link.active {
  background: rgba(168, 218, 220, 0.1);
  color: var(--secondary);
}

.nav-link.active::before {
  opacity: 1;
}

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

.nav-link.active svg, .nav-link.active .nav-icon {
  opacity: 1;
}

.nav-badge {
  margin-left: auto;
  background: var(--cta);
  color: white;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-weight: 600;
}

.sidebar-footer {
  padding: 16px;
  border-top: 1px solid var(--border-glass);
}

.sidebar-user {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px;
  border-radius: var(--radius-md);
  background: var(--bg-glass);
  cursor: pointer;
  transition: background var(--transition-fast);
}

.sidebar-user:hover {
  background: var(--bg-glass-hover);
}

.sidebar-avatar {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--accent), var(--secondary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  color: white;
  flex-shrink: 0;
}

.sidebar-user-info {
  flex: 1;
  min-width: 0;
}

.sidebar-user-name {
  font-size: 0.8rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.sidebar-user-role {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: capitalize;
}

/* ── Header / Topbar ── */
.topbar {
  position: fixed;
  top: 0;
  right: 0;
  left: var(--sidebar-width);
  height: var(--header-height);
  background: rgba(11, 17, 32, 0.85);
  backdrop-filter: blur(20px) saturate(180%);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  border-bottom: 1px solid var(--border-glass);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  z-index: 90;
  transition: left var(--transition-normal);
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  cursor: pointer;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.menu-toggle:hover {
  background: var(--bg-glass-hover);
}

.menu-toggle svg {
  width: 24px;
  height: 24px;
}

.page-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 600;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.topbar-search {
  position: relative;
}

.topbar-search input {
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-full);
  padding: 8px 16px 8px 38px;
  color: var(--text-primary);
  font-size: 0.85rem;
  width: 220px;
  transition: all var(--transition-fast);
  font-family: var(--font-body);
}

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

.topbar-search input:focus {
  outline: none;
  border-color: var(--secondary);
  width: 280px;
  background: var(--bg-glass-hover);
}

.topbar-search svg {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  color: var(--text-muted);
}

.topbar-btn {
  position: relative;
  background: var(--bg-glass);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  color: var(--text-secondary);
  padding: 8px;
  cursor: pointer;
  transition: all var(--transition-fast);
}

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

.topbar-btn svg {
  width: 20px;
  height: 20px;
}

.notification-dot {
  position: absolute;
  top: 4px;
  right: 4px;
  width: 8px;
  height: 8px;
  background: var(--cta);
  border-radius: 50%;
  border: 2px solid var(--bg-primary);
}

.topbar-divider {
  width: 1px;
  height: 32px;
  background: var(--border-glass);
}

/* ── Page Header ── */
.page-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 16px;
}

.page-header-left h1 {
  font-size: 1.5rem;
  margin-bottom: 4px;
}

.page-header-left p {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* ── Utility Classes ── */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-success { color: var(--success) !important; }
.text-danger { color: var(--danger) !important; }
.text-warning { color: var(--warning) !important; }
.text-info { color: var(--info) !important; }
.text-muted { color: var(--text-muted) !important; }
.text-secondary { color: var(--text-secondary) !important; }

.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }

.d-flex { display: flex; }
.align-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 8px; }
.gap-2 { gap: 16px; }
.gap-3 { gap: 24px; }
.flex-wrap { flex-wrap: wrap; }

.grid {
  display: grid;
  gap: 24px;
}

.grid-2 { grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); }

/* ── Mobile Overlay ── */
.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  z-index: 95;
  opacity: 0;
  transition: opacity var(--transition-normal);
}

.sidebar-overlay.active {
  display: block;
  opacity: 1;
}

/* ── Content Background Effects ── */
.main-content::before {
  content: '';
  position: fixed;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(168, 218, 220, 0.08) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.main-content::after {
  content: '';
  position: fixed;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(69, 123, 157, 0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.main-content > * {
  position: relative;
  z-index: 1;
}