/**
 * Easy Insure - World-Class Design System
 * Self-contained CSS without Tailwind CDN
 */

/* =============================================
   ROOT VARIABLES & THEME
   ============================================= */
:root {
    --bg-primary: #F8FAFC;
    --bg-secondary: #FFFFFF;
    --bg-tertiary: #F1F5F9;
    --bg-card: #FFFFFF;
    --bg-card-rgb: 255, 255, 255;
    --bg-glass: rgba(255, 255, 255, 0.15);
    --text-primary: #0F172A;
    --text-secondary: #475569;
    --text-muted: #94A3B8;
    --border-color: #E2E8F0;
    --brand-50: #f0fdf4;
    --brand-500: #22c55e;
    --brand-600: #16a34a;
    --blue-500: #3b82f6;
    --red-500: #ef4444;
    --yellow-500: #f59e0b;
    --color-primary: #22C55E;
    --color-primary-hover: #16A34A;
}

.dark {
    --bg-primary: #0F172A;
    --bg-secondary: #1E293B;
    --bg-tertiary: #334155;
    --bg-card: #1E293B;
    --bg-card-rgb: 30, 41, 59;
    --bg-glass: rgba(15, 23, 42, 0.75);
    --text-primary: #F8FAFC;
    --text-secondary: #CBD5E1;
    --text-muted: #64748B;
    --border-color: #334155;
    --color-primary: #4ADE80;
    --color-primary-hover: #22C55E;
}

/* =============================================
   BASE
   ============================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; -webkit-text-size-adjust: 100%; }
body { font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif; background: var(--bg-primary); color: var(--text-primary); min-height: 100vh; line-height: 1.5; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; font-size: 1rem; }

/* =============================================
   LAYOUT UTILITIES
   ============================================= */
.hidden,
#login-screen.hidden,
#app-container.hidden { 
    display: none !important; 
}
.fixed { position: fixed; }
.absolute { position: absolute; }
.relative { position: relative; }
.glass-card { background: rgba(var(--bg-card-rgb), 0.7); border: 1px solid var(--border-color); border-radius: 1rem; box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06); backdrop-filter: blur(12px); }
.inset-0 { top: 0; right: 0; bottom: 0; left: 0; }
.z-50 { z-index: 50; }
.z-40 { z-index: 40; }
.z-30 { z-index: 30; }
.z-20 { z-index: 20; }
.flex { display: flex; }
.inline-flex { display: inline-flex; }
.grid { display: grid; }
.block { display: block; }
.inline-block { display: inline-block; }

/* Responsive Layout Enforcements */
@media (max-width: 767px) {
    .sidebar-desktop { display: none !important; }
    .header-desktop { display: none !important; }
    .header-mobile { display: flex !important; }
    .nav-mobile { display: flex !important; }
    #main-content { margin-left: 0 !important; padding-top: 4rem !important; padding-bottom: 5rem !important; }
}

@media (min-width: 768px) {
    .sidebar-desktop { display: flex !important; }
    .header-desktop { display: flex !important; }
    .header-mobile { display: none !important; }
    .nav-mobile { display: none !important; }
    #main-content { margin-left: 16rem !important; padding-top: 0 !important; padding-bottom: 2rem !important; }
    .md\:flex { display: flex !important; }
    .md\:hidden { display: none !important; }
    .md\:block { display: block !important; }
    .md\:grid { display: grid !important; }
    .md\:ml-64 { margin-left: 16rem !important; }
    .md\:pt-0 { padding-top: 0 !important; }
}

/* Flexbox */
.flex-col { flex-direction: column; }
.flex-wrap { flex-wrap: wrap; }
.items-center { align-items: center; }
.items-start { align-items: flex-start; }
.items-end { align-items: flex-end; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-end { justify-content: flex-end; }
.flex-1 { flex: 1 1 0%; }
.flex-shrink-0 { flex-shrink: 0; }
.gap-1 { gap: 0.25rem; }
.gap-2 { gap: 0.5rem; }
.gap-3 { gap: 0.75rem; }
.gap-4 { gap: 1rem; }
.gap-6 { gap: 1.5rem; }

/* Spacing */
.p-2 { padding: 0.5rem; }
.p-3 { padding: 0.75rem; }
.p-4 { padding: 1rem; }
.p-6 { padding: 1.5rem; }
.px-2 { padding-left: 0.5rem; padding-right: 0.5rem; }
.px-3 { padding-left: 0.75rem; padding-right: 0.75rem; }
.px-4 { padding-left: 1rem; padding-right: 1rem; }
.py-1 { padding-top: 0.25rem; padding-bottom: 0.25rem; }
.py-2 { padding-top: 0.5rem; padding-bottom: 0.5rem; }
.py-3 { padding-top: 0.75rem; padding-bottom: 0.75rem; }
.pl-3 { padding-left: 0.75rem; }
.pl-4 { padding-left: 1rem; }
.pl-10 { padding-left: 2.5rem; }
.pl-12 { padding-left: 3rem; }
.pr-2 { padding-right: 0.5rem; }
.pr-4 { padding-right: 1rem; }
.m-auto { margin: auto; }
.mb-1 { margin-bottom: 0.25rem; }
.mb-2 { margin-bottom: 0.5rem; }
.mb-3 { margin-bottom: 0.75rem; }
.mb-4 { margin-bottom: 1rem; }
.mb-6 { margin-bottom: 1.5rem; }
.mt-1 { margin-top: 0.25rem; }
.mt-2 { margin-top: 0.5rem; }
.mt-4 { margin-top: 1rem; }
.ml-2 { margin-left: 0.5rem; }
.ml-auto { margin-left: auto; }
.mr-1 { margin-right: 0.25rem; }
.mr-2 { margin-right: 0.5rem; }

/* Sizing */
.w-full { width: 100%; }
.w-4 { width: 1rem; }
.w-5 { width: 1.25rem; }
.w-6 { width: 1.5rem; }
.w-8 { width: 2rem; }
.w-10 { width: 2.5rem; }
.w-12 { width: 3rem; }
.w-16 { width: 4rem; }
.w-20 { width: 5rem; }
.h-full { height: 100%; }
.h-screen { height: 100vh; }
.h-4 { height: 1rem; }
.h-5 { height: 1.25rem; }
.h-6 { height: 1.5rem; }
.h-8 { height: 2rem; }
.h-10 { height: 2.5rem; }
.h-12 { height: 3rem; }
.h-16 { height: 4rem; }
.max-w-md { max-width: 28rem; }
.max-w-lg { max-width: 32rem; }
.max-w-xl { max-width: 36rem; }
.max-h-\[70vh\] { max-height: 70vh; }
.min-h-screen { min-height: 100vh; }

/* =============================================
   TYPOGRAPHY
   ============================================= */
.text-xs { font-size: 0.75rem; line-height: 1rem; }
.text-sm { font-size: 0.875rem; line-height: 1.25rem; }
.text-base { font-size: 1rem; line-height: 1.5rem; }
.text-lg { font-size: 1.125rem; line-height: 1.75rem; }
.text-xl { font-size: 1.25rem; line-height: 1.75rem; }
.text-2xl { font-size: 1.5rem; line-height: 2rem; }
.text-3xl { font-size: 1.875rem; line-height: 2.25rem; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.uppercase { text-transform: uppercase; }
.tracking-wider { letter-spacing: 0.05em; }
.text-center { text-align: center; }
.text-right { text-align: right; }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.whitespace-nowrap { white-space: nowrap; }

/* =============================================
   COLORS
   ============================================= */
.text-white { color: #ffffff; }
.text-slate-900 { color: #0f172a; }
.text-slate-500 { color: #64748b; }
.text-slate-400 { color: #94a3b8; }
.text-brand-500 { color: var(--brand-500); }
.text-brand-400 { color: #4ade80; }
.text-blue-500 { color: var(--blue-500); }
.text-red-500 { color: var(--red-500); }
.text-yellow-500 { color: var(--yellow-500); }
.bg-white { background-color: #ffffff; }
.bg-slate-50 { background-color: #f8fafc; }
.bg-brand-500 { background-color: var(--brand-500); }
.bg-brand-500\/20 { background-color: rgba(34, 197, 94, 0.2); }
.bg-blue-500\/20 { background-color: rgba(59, 130, 246, 0.2); }
.bg-white\/5 { background-color: rgba(255, 255, 255, 0.05); }
.bg-white\/10 { background-color: rgba(255, 255, 255, 0.1); }
.bg-white\/20 { background-color: rgba(255, 255, 255, 0.2); }

/* =============================================
   BORDERS & SHADOWS
   ============================================= */
.rounded { border-radius: 0.25rem; }
.rounded-lg { border-radius: 0.5rem; }
.rounded-xl { border-radius: 0.75rem; }
.rounded-2xl { border-radius: 1rem; }
.rounded-full { border-radius: 9999px; }
.border { border-width: 1px; border-style: solid; }
.border-2 { border-width: 2px; }
.border-slate-200 { border-color: #e2e8f0; }
.border-brand-500 { border-color: var(--brand-500); }
.border-transparent { border-color: transparent; }
.shadow-sm { box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.05); }
.shadow-lg { box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1); }
.shadow-brand-500\/25 { box-shadow: 0 10px 15px -3px rgba(34, 197, 94, 0.25); }

/* =============================================
   EFFECTS & ANIMATIONS
   ============================================= */
.transition-all { transition: all 0.2s ease; }
.transition-colors { transition: color 0.2s ease, background-color 0.2s ease, border-color 0.2s ease; }
.transition-transform { transition: transform 0.2s ease; }
.transition-opacity { transition: opacity 0.3s ease; }
.transform { transform: translateZ(0); }
.hover\:scale-\[1\.02\]:hover { transform: scale(1.02); }
.active\:scale-\[0\.98\]:active { transform: scale(0.98); }
.animate-spin { animation: spin 1s linear infinite; }
.animate-pulse { animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite; }

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

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

/* =============================================
   FOCUS STATES
   ============================================= */
.focus\:outline-none:focus { outline: none; }
.focus\:ring-2:focus { box-shadow: 0 0 0 2px; }
.focus\:ring-brand-500\/20:focus { --tw-ring-color: rgba(34, 197, 94, 0.2); }
.focus\:border-brand-500:focus { border-color: var(--brand-500); }

/* =============================================
   SCROLLBAR
   ============================================= */
.overflow-y-auto { overflow-y: auto; }
.overflow-x-hidden { overflow-x: hidden; }
.pr-2 { padding-right: 0.5rem; }

/* =============================================
   LOADING OVERLAY
   ============================================= */
#loading-overlay {
    position: fixed;
    inset: 0;
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-primary);
    transition: opacity 0.3s ease;
}

#loading-overlay .spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--brand-500);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* =============================================
   LOGIN SCREEN
   ============================================= */
#login-screen {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.login-card {
    width: 100%;
    max-width: 420px;
    background: var(--bg-card);
    border-radius: 1.5rem;
    padding: 2.5rem;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

.login-card input[type="tel"],
.login-card input[type="password"],
.login-card input[type="text"],
.login-card input[type="email"] {
    width: 100%;
    padding: 0.875rem 1rem 0.875rem 3rem;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    font-size: 1rem;
    color: var(--text-primary);
    transition: all 0.2s;
}

.login-card input:focus {
    outline: none;
    border-color: var(--brand-500);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.login-btn {
    width: 100%;
    padding: 0.875rem;
    background: linear-gradient(135deg, var(--brand-500) 0%, var(--brand-600) 100%);
    color: white;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 0.75rem;
    box-shadow: 0 10px 15px -3px rgba(34, 197, 94, 0.25);
    transition: all 0.2s;
}

.login-btn:hover {
    transform: scale(1.02);
}

.login-btn:active {
    transform: scale(0.98);
}

/* =============================================
   MAIN APP LAYOUT
   ============================================= */
#main-app {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    height: 100vh;
    position: fixed;
    left: 0;
    top: 0;
    z-index: 40;
    transition: transform 0.3s ease;
}

.main-content {
    flex: 1;
    margin-left: 280px;
    min-height: 100vh;
}

/* Header */
.app-header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.5rem;
    position: sticky;
    top: 0;
    z-index: 30;
}

/* Cards */
.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    padding: 1.25rem;
    transition: all 0.2s;
}

.stat-card:hover {
    border-color: var(--brand-500);
    box-shadow: 0 0 20px rgba(34, 197, 94, 0.1);
}

/* =============================================
   TOAST NOTIFICATIONS
   ============================================= */
#toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.toast {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1rem 1.25rem;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* =============================================
   RESPONSIVE
   ============================================= */
@media (max-width: 1024px) {
    .sidebar { transform: translateX(-100%); }
    .sidebar.open { transform: translateX(0); }
    .main-content { margin-left: 0; }
}

@media (max-width: 768px) {
    .grid-cols-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .grid-cols-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}