/**
 * InvestEdu - Main Stylesheet
 * Contains all custom styles, brand colors, and overrides
 */

/* ============================================
   FONTS
   ============================================ */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

/* ============================================
   CSS VARIABLES (Brand Colors & Theme)
   ============================================ */
:root {
    /* Brand Colors */
    --color-primary: #10B981;        /* Green - Real Funds */
    --color-secondary: #3B82F6;      /* Blue - Simulated Funds */
    --color-warning: #F59E0B;        /* Amber - Warnings */
    --color-danger: #EF4444;         /* Red - Errors/Freezes */
    
    /* Neutral Colors */
    --color-slate-900: #0F172A;
    --color-slate-800: #1E293B;
    --color-slate-700: #334155;
    --color-slate-600: #475569;
    --color-slate-500: #64748B;
    --color-slate-400: #94A3B8;
    --color-slate-300: #CBD5E1;
    --color-slate-200: #E2E8F0;
    --color-slate-100: #F1F5F9;
    --color-slate-50: #F8FAFC;
    
    /* Background Colors */
    --bg-primary: #F9FAFB;
    --bg-white: #FFFFFF;
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
    
    /* Spacing */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --radius-2xl: 24px;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);
    --shadow-xl: 0 20px 25px -5px rgb(0 0 0 / 0.1);
}

/* ============================================
   BASE STYLES
   ============================================ */
* {
    box-sizing: border-box;
}

body {
    font-family: var(--font-primary);
    background-color: var(--bg-primary);
    color: #111827;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

/* Brand Colors */
.text-real {
    color: var(--color-primary);
}

.bg-real {
    background-color: var(--color-primary);
}

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

.bg-sim {
    background-color: var(--color-secondary);
}

.bg-slate-900-brand {
    background-color: var(--color-slate-900);
}

/* Typography */
.mono {
    font-family: var(--font-mono);
}

.font-inter {
    font-family: var(--font-primary);
}

/* ============================================
   COMPONENTS
   ============================================ */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: var(--radius-md);
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    text-decoration: none;
}

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

.btn-primary:hover {
    opacity: 0.9;
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.3);
}

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

.btn-secondary:hover {
    opacity: 0.9;
}

.btn-outline {
    background-color: white;
    border: 2px solid var(--color-slate-200);
    color: var(--color-slate-700);
}

.btn-outline:hover {
    background-color: var(--color-slate-50);
}

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

.btn-danger:hover {
    background-color: #DC2626;
}

/* Cards */
.card {
    background: white;
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-slate-200);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
}

.card-header {
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-slate-200);
}

/* Form Elements */
.form-input {
    width: 100%;
    padding: 0.875rem 1rem;
    border: 1px solid var(--color-slate-200);
    border-radius: var(--radius-md);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    transition: all 0.2s ease;
    background-color: white;
}

.form-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(16, 185, 129, 0.1);
}

.form-label {
    display: block;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-slate-700);
    margin-bottom: 0.5rem;
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.75rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 700;
}

.badge-success {
    background-color: rgba(16, 185, 129, 0.1);
    color: #059669;
}

.badge-warning {
    background-color: rgba(245, 158, 11, 0.1);
    color: #D97706;
}

.badge-danger {
    background-color: rgba(239, 68, 68, 0.1);
    color: #DC2626;
}

.badge-info {
    background-color: rgba(59, 130, 246, 0.1);
    color: #2563EB;
}

/* Alerts */
.alert {
    padding: 1rem 1.25rem;
    border-radius: var(--radius-lg);
    border: 2px solid;
    display: flex;
    align-items: flex-start;
    gap: 1rem;
}

.alert-warning {
    background-color: rgba(245, 158, 11, 0.05);
    border-color: rgba(245, 158, 11, 0.3);
    color: #92400E;
}

.alert-danger {
    background-color: rgba(239, 68, 68, 0.05);
    border-color: rgba(239, 68, 68, 0.3);
    color: #991B1B;
}

.alert-info {
    background-color: rgba(59, 130, 246, 0.05);
    border-color: rgba(59, 130, 246, 0.3);
    color: #1E40AF;
}

.alert-success {
    background-color: rgba(16, 185, 129, 0.05);
    border-color: rgba(16, 185, 129, 0.3);
    color: #047857;
}

/* Sidebar Navigation */
.sidebar {
    width: 16rem;
    background-color: var(--color-slate-900);
    color: var(--color-slate-400);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    border-right: 1px solid var(--color-slate-800);
}

.sidebar-nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem;
    border-radius: var(--radius-lg);
    transition: all 0.2s ease;
    color: var(--color-slate-400);
    text-decoration: none;
}

.sidebar-nav-link:hover {
    background-color: var(--color-slate-800);
    color: white;
}

.sidebar-nav-link.active {
    background-color: var(--color-slate-800);
    color: white;
}

/* ============================================
   RESPONSIVE UTILITIES
   ============================================ */
@media (max-width: 768px) {
    .sidebar {
        width: 100%;
        position: fixed;
        height: 100vh;
        z-index: 50;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.3s ease-out;
}

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

.spin {
    animation: spin 1s linear infinite;
}

/* ============================================
   PRINT STYLES
   ============================================ */
@media print {
    .sidebar,
    .no-print {
        display: none !important;
    }
}