/* ============================================================
   MEDISTORE PRO — MAIN CSS
   Design System: Variables, Reset, Layout, Typography
   ============================================================ */

/* ---- CSS Custom Properties ---- */
:root {
  /* Brand Colors */
  --primary: #6C63FF;
  --primary-dark: #5a52e0;
  --primary-light: #ede9ff;
  --primary-glow: rgba(108, 99, 255, 0.25);

  --secondary: #00C9A7;
  --secondary-dark: #00a88c;
  --secondary-light: #e0faf5;

  --accent: #FF6B6B;
  --accent-dark: #e85555;
  --accent-light: #ffe5e5;

  --warning: #FFB800;
  --warning-light: #fff8e0;
  --success: #2DCE89;
  --success-light: #e5f9f1;
  --danger: #F5365C;
  --danger-light: #fee8ec;
  --info: #11CDEF;
  --info-light: #e0faff;

  /* Sidebar */
  --sidebar-bg: #12131c;
  --sidebar-width: 248px;
  --sidebar-collapsed-width: 68px;
  --sidebar-text: #a8b0c1;
  --sidebar-text-active: #ffffff;
  --sidebar-hover: rgba(108, 99, 255, 0.12);
  --sidebar-active: rgba(108, 99, 255, 0.2);
  --sidebar-border: rgba(255,255,255,0.06);
  --sidebar-section-label: rgba(168,176,193,0.5);

  /* Main */
  --bg-main: #f0f2fa;
  --bg-card: #ffffff;
  --bg-card-hover: #f8f9ff;
  --topbar-bg: #ffffff;
  --topbar-height: 64px;

  /* Text */
  --text-primary: #1a1d2e;
  --text-secondary: #6b7280;
  --text-muted: #9ca3af;
  --text-inverse: #ffffff;

  /* Border */
  --border: #e5e7eb;
  --border-light: #f3f4f6;
  --border-focus: var(--primary);

  /* Radius */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Shadow */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.08), 0 1px 2px rgba(0,0,0,0.05);
  --shadow-md: 0 4px 6px -1px rgba(0,0,0,0.08), 0 2px 4px -1px rgba(0,0,0,0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0,0,0,0.08), 0 4px 6px -2px rgba(0,0,0,0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0,0,0,0.1), 0 10px 10px -5px rgba(0,0,0,0.04);
  --shadow-glow: 0 0 0 4px var(--primary-glow);

  /* Spacing */
  --space-1: 4px; --space-2: 8px; --space-3: 12px; --space-4: 16px;
  --space-5: 20px; --space-6: 24px; --space-7: 28px; --space-8: 32px;
  --space-10: 40px; --space-12: 48px;

  /* Font */
  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-size-xs: 11px;
  --font-size-sm: 13px;
  --font-size-base: 14px;
  --font-size-md: 15px;
  --font-size-lg: 17px;
  --font-size-xl: 20px;
  --font-size-2xl: 24px;
  --font-size-3xl: 30px;

  /* Transitions */
  --transition: 0.2s ease;
  --transition-slow: 0.35s ease;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: var(--font-size-base); -webkit-font-smoothing: antialiased; }
body { font-family: var(--font); background: var(--bg-main); color: var(--text-primary); line-height: 1.5; }

/* Ensure [hidden] always wins over CSS display rules */
[hidden] { display: none !important; }
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font: inherit; }
input, select, textarea { font: inherit; }
ul, ol { list-style: none; }
table { border-collapse: collapse; width: 100%; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #d1d5db; border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: #9ca3af; }

/* ============================================================
   LOGIN SCREEN
   ============================================================ */
.login-screen {
  position: fixed; inset: 0; z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, #0f0c29 0%, #1a1d2e 40%, #24243e 100%);
  min-height: 100vh;
}

.login-bg-pattern {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(108,99,255,0.15) 0%, transparent 50%),
    radial-gradient(circle at 80% 20%, rgba(0,201,167,0.1) 0%, transparent 40%);
}

.login-card {
  background: rgba(255,255,255,0.05);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  padding: var(--space-10) var(--space-8);
  width: 100%; max-width: 400px;
  box-shadow: 0 32px 64px rgba(0,0,0,0.4);
  position: relative; z-index: 1;
}

.login-logo {
  display: flex; align-items: center; gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.login-logo-icon svg { width: 48px; height: 48px; }

.login-brand {
  color: #ffffff; font-size: var(--font-size-2xl); font-weight: 800;
  letter-spacing: -0.5px;
}

.login-tagline { color: rgba(255,255,255,0.5); font-size: var(--font-size-sm); }

.login-form { display: flex; flex-direction: column; gap: var(--space-5); }

.login-error {
  background: rgba(245,54,92,0.1); border: 1px solid rgba(245,54,92,0.3);
  color: #ff6b6b; padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md); font-size: var(--font-size-sm);
}

.login-footer {
  text-align: center; color: rgba(255,255,255,0.3);
  font-size: var(--font-size-xs); margin-top: var(--space-5);
}

/* ============================================================
   APP LAYOUT
   ============================================================ */
.app {
  display: flex; height: 100vh; overflow: hidden;
}

/* ---- Sidebar ---- */
.sidebar {
  width: var(--sidebar-width);
  min-width: var(--sidebar-width);
  background: var(--sidebar-bg);
  display: flex; flex-direction: column;
  transition: width var(--transition-slow), min-width var(--transition-slow);
  overflow: hidden;
  z-index: 100;
  border-right: 1px solid var(--sidebar-border);
}

.sidebar.collapsed {
  width: var(--sidebar-collapsed-width);
  min-width: var(--sidebar-collapsed-width);
}

.sidebar-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-5) var(--space-4);
  border-bottom: 1px solid var(--sidebar-border);
  height: var(--topbar-height);
  min-height: var(--topbar-height);
}

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

.sidebar-logo svg { width: 32px; height: 32px; flex-shrink: 0; }

.sidebar-brand {
  color: #fff; font-size: var(--font-size-md); font-weight: 700;
  letter-spacing: -0.3px;
  transition: opacity var(--transition), width var(--transition);
}

.sidebar.collapsed .sidebar-brand { opacity: 0; width: 0; }

.sidebar-toggle {
  color: var(--sidebar-text); padding: var(--space-1);
  border-radius: var(--radius-sm); flex-shrink: 0;
  transition: color var(--transition), background var(--transition);
}
.sidebar-toggle:hover { color: #fff; background: var(--sidebar-hover); }
.sidebar-toggle svg { width: 20px; height: 20px; }

.sidebar-menu {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  padding: var(--space-3) var(--space-2);
  display: flex; flex-direction: column; gap: 2px;
}

.sidebar-section-label {
  color: var(--sidebar-section-label);
  font-size: var(--font-size-xs); font-weight: 600;
  text-transform: uppercase; letter-spacing: 0.8px;
  padding: var(--space-4) var(--space-3) var(--space-1);
  white-space: nowrap;
  transition: opacity var(--transition);
}

.sidebar.collapsed .sidebar-section-label { opacity: 0; }

.sidebar-link {
  display: flex; align-items: center; gap: var(--space-3);
  padding: 10px var(--space-3); border-radius: var(--radius-md);
  color: var(--sidebar-text); font-size: var(--font-size-sm);
  font-weight: 500; position: relative;
  transition: color var(--transition), background var(--transition);
  white-space: nowrap; overflow: hidden;
}

.sidebar-link:hover {
  color: var(--sidebar-text-active); background: var(--sidebar-hover);
}

.sidebar-link.active {
  color: var(--sidebar-text-active); background: var(--sidebar-active);
}

.sidebar-link.active::before {
  content: ''; position: absolute; left: 0; top: 6px; bottom: 6px;
  width: 3px; background: var(--primary); border-radius: 0 3px 3px 0;
}

.sidebar-icon { width: 18px; height: 18px; flex-shrink: 0; }

.sidebar-link span:not(.sidebar-badge) {
  transition: opacity var(--transition);
}

.sidebar.collapsed .sidebar-link span:not(.sidebar-icon):not(.sidebar-badge) {
  opacity: 0; width: 0; overflow: hidden;
}

.sidebar-badge {
  background: var(--danger); color: #fff;
  font-size: 10px; font-weight: 700;
  padding: 1px 6px; border-radius: var(--radius-full);
  margin-left: auto; flex-shrink: 0;
}

.sidebar-footer {
  padding: var(--space-4);
  border-top: 1px solid var(--sidebar-border);
  display: flex; align-items: center; gap: var(--space-3);
}

.sidebar-user {
  display: flex; align-items: center; gap: var(--space-3);
  flex: 1; overflow: hidden;
}

.sidebar-user-avatar {
  width: 34px; height: 34px; border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-size: var(--font-size-sm); font-weight: 700;
  flex-shrink: 0;
}

.sidebar-user-info {
  display: flex; flex-direction: column; overflow: hidden;
  transition: opacity var(--transition);
}

.sidebar.collapsed .sidebar-user-info { opacity: 0; width: 0; }

.sidebar-user-name {
  color: #fff; font-size: var(--font-size-sm); font-weight: 600;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}

.sidebar-user-role {
  color: var(--sidebar-text); font-size: var(--font-size-xs);
}

.logout-btn {
  color: var(--sidebar-text); flex-shrink: 0;
  transition: color var(--transition);
}
.logout-btn:hover { color: var(--danger); }
.logout-btn svg { width: 18px; height: 18px; }

/* ---- Main Area ---- */
.main-area {
  flex: 1; display: flex; flex-direction: column;
  overflow: hidden; min-width: 0;
}

/* ---- Topbar ---- */
.topbar {
  height: var(--topbar-height); min-height: var(--topbar-height);
  background: var(--topbar-bg);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 var(--space-6);
  box-shadow: var(--shadow-sm);
  z-index: 50;
}

.topbar-left { display: flex; align-items: center; gap: var(--space-4); }

.topbar-page-title h2 {
  font-size: var(--font-size-lg); font-weight: 700;
  color: var(--text-primary); line-height: 1.2;
}

.page-subtitle {
  font-size: var(--font-size-xs); color: var(--text-secondary);
  display: block;
}

.topbar-right {
  display: flex; align-items: center; gap: var(--space-4);
}

.topbar-store-name {
  font-size: var(--font-size-sm); font-weight: 600;
  color: var(--primary); padding: var(--space-1) var(--space-3);
  background: var(--primary-light); border-radius: var(--radius-full);
}

.topbar-date {
  font-size: var(--font-size-xs); color: var(--text-secondary);
  font-weight: 500;
}

.alert-bell { position: relative; color: var(--text-secondary); }
.alert-bell svg { width: 20px; height: 20px; }
.alert-bell:hover { color: var(--primary); }

.badge-dot {
  position: absolute; top: 2px; right: 2px;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--danger); border: 2px solid #fff;
}

.mobile-menu-btn { display: none; color: var(--text-secondary); }
.mobile-menu-btn svg { width: 20px; height: 20px; }

/* ---- Page Content ---- */
.page-content {
  flex: 1; overflow-y: auto; overflow-x: hidden;
  padding: var(--space-6);
  background: var(--bg-main);
}

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1 { font-size: var(--font-size-3xl); font-weight: 800; }
h2 { font-size: var(--font-size-2xl); font-weight: 700; }
h3 { font-size: var(--font-size-xl); font-weight: 700; }
h4 { font-size: var(--font-size-lg); font-weight: 600; }
h5 { font-size: var(--font-size-md); font-weight: 600; }
h6 { font-size: var(--font-size-base); font-weight: 600; }

.text-xs  { font-size: var(--font-size-xs); }
.text-sm  { font-size: var(--font-size-sm); }
.text-md  { font-size: var(--font-size-md); }
.text-lg  { font-size: var(--font-size-lg); }
.text-muted { color: var(--text-secondary); }
.text-primary-color { color: var(--primary); }
.text-success { color: var(--success); }
.text-danger  { color: var(--danger); }
.text-warning { color: var(--warning); }
.font-bold   { font-weight: 700; }
.font-semibold { font-weight: 600; }
.font-medium { font-weight: 500; }
.text-right  { text-align: right; }
.text-center { text-align: center; }

/* ============================================================
   LAYOUT UTILITIES
   ============================================================ */
.flex { display: flex; }
.flex-col { display: flex; flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.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); } .gap-8 { gap: var(--space-8); }
.flex-1 { flex: 1; }
.flex-wrap { flex-wrap: wrap; }
.grid { display: grid; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.min-w-0 { min-width: 0; }
.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }
.relative { position: relative; }

.mt-1 { margin-top: var(--space-1); } .mt-2 { margin-top: var(--space-2); }
.mt-3 { margin-top: var(--space-3); } .mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); } .mt-8 { margin-top: var(--space-8); }
.mb-2 { margin-bottom: var(--space-2); } .mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }
.ml-auto { margin-left: auto; }
.mr-2 { margin-right: var(--space-2); }

.p-4 { padding: var(--space-4); }
.p-6 { padding: var(--space-6); }
.px-4 { padding-left: var(--space-4); padding-right: var(--space-4); }
.py-2 { padding-top: var(--space-2); padding-bottom: var(--space-2); }
.py-3 { padding-top: var(--space-3); padding-bottom: var(--space-3); }

.hidden { display: none !important; }

/* ============================================================
   PAGE HEADER
   ============================================================ */
.page-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: var(--space-6); flex-wrap: wrap; gap: var(--space-4);
}

.page-header-left h3 { color: var(--text-primary); margin-bottom: 2px; }
.page-header-left p { color: var(--text-secondary); font-size: var(--font-size-sm); }

.page-actions { display: flex; gap: var(--space-3); flex-wrap: wrap; }

/* ============================================================
   GRID LAYOUTS
   ============================================================ */
.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-4);
  margin-bottom: var(--space-6);
}

.col-2 { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-6); }
.col-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: var(--space-4); }

@media (max-width: 1200px) {
  .col-2 { grid-template-columns: 1fr; }
  .col-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .sidebar { position: fixed; top: 0; left: 0; bottom: 0; transform: translateX(-100%); transition: transform var(--transition-slow); }
  .sidebar.mobile-open { transform: translateX(0); }
  .mobile-menu-btn { display: flex; }
  .col-3 { grid-template-columns: 1fr; }
  .kpi-grid { grid-template-columns: repeat(2, 1fr); }
  .topbar-store-name { display: none; }
  .page-content { padding: var(--space-4); }
}

@media (max-width: 480px) {
  .kpi-grid { grid-template-columns: 1fr; }
}