/* Modern Banking Design System - PaySystem */
/* Inspired by Tinkoff, Sberbank, MoonPay */

:root {
    /* Primary Colors */
    --primary-black: #0A0A0A;
    --primary-white: #FFFFFF;
    --primary-gray: #F8F9FA;
    --primary-dark-gray: #1A1A1A;
    
    /* Brand Colors */
    --brand-primary: #2563EB;
    --brand-secondary: #3B82F6;
    --brand-accent: #1E40AF;
    --brand-success: #10B981;
    --brand-warning: #F59E0B;
    --brand-danger: #EF4444;
    --brand-info: #06B6D4;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #2563EB 0%, #1E40AF 100%);
    --gradient-secondary: linear-gradient(135deg, #3B82F6 0%, #2563EB 100%);
    --gradient-success: linear-gradient(135deg, #10B981 0%, #059669 100%);
    --gradient-warning: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
    --gradient-danger: linear-gradient(135deg, #EF4444 0%, #DC2626 100%);
    --gradient-dark: linear-gradient(135deg, #1A1A1A 0%, #0A0A0A 100%);
    --gradient-glass: linear-gradient(135deg, rgba(255, 255, 255, 0.1) 0%, rgba(255, 255, 255, 0.05) 100%);
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-glow: 0 0 20px rgba(37, 99, 235, 0.3);
    
    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-secondary: 'SF Pro Display', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    /* Spacing */
    --space-xs: 0.25rem;
    --space-sm: 0.5rem;
    --space-md: 1rem;
    --space-lg: 1.5rem;
    --space-xl: 2rem;
    --space-2xl: 3rem;
    --space-3xl: 4rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;
    --radius-2xl: 1.5rem;
    --radius-full: 9999px;
    
    /* Transitions */
    --transition-fast: 150ms ease-in-out;
    --transition-normal: 250ms ease-in-out;
    --transition-slow: 350ms ease-in-out;
    
    /* Z-Index */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-toast: 1080;
}

/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--primary-black);
    background: var(--primary-gray);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-secondary);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.75rem; }
h4 { font-size: 1.5rem; }
h5 { font-size: 1.25rem; }
h6 { font-size: 1rem; }

p {
    margin-bottom: var(--space-md);
    color: #4B5563;
}

/* Modern Button System */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-sm);
    padding: var(--space-md) var(--space-xl);
    font-family: var(--font-primary);
    font-size: 0.875rem;
    font-weight: 600;
    line-height: 1;
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
    white-space: nowrap;
    user-select: none;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left var(--transition-slow);
}

.btn:hover::before {
    left: 100%;
}

.btn:active {
    transform: translateY(1px);
}

.btn-primary {
    background: var(--gradient-primary);
    color: var(--primary-white);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover {
    box-shadow: var(--shadow-lg), var(--shadow-glow);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--gradient-secondary);
    color: var(--primary-white);
    box-shadow: var(--shadow-md);
}

.btn-success {
    background: var(--gradient-success);
    color: var(--primary-white);
    box-shadow: var(--shadow-md);
}

.btn-warning {
    background: var(--gradient-warning);
    color: var(--primary-white);
    box-shadow: var(--shadow-md);
}

.btn-danger {
    background: var(--gradient-danger);
    color: var(--primary-white);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--brand-primary);
    border: 2px solid var(--brand-primary);
}

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

.btn-ghost {
    background: transparent;
    color: var(--brand-primary);
}

.btn-ghost:hover {
    background: rgba(37, 99, 235, 0.1);
}

.btn-sm {
    padding: var(--space-sm) var(--space-lg);
    font-size: 0.75rem;
}

.btn-lg {
    padding: var(--space-lg) var(--space-2xl);
    font-size: 1rem;
}

/* Modern Card System */
.card {
    background: var(--primary-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(0, 0, 0, 0.05);
    overflow: hidden;
    transition: all var(--transition-normal);
    position: relative;
}

.card:hover {
    box-shadow: var(--shadow-xl);
    transform: translateY(-4px);
}

.card-header {
    padding: var(--space-xl);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    background: var(--gradient-glass);
}

.card-body {
    padding: var(--space-xl);
}

.card-footer {
    padding: var(--space-xl);
    border-top: 1px solid rgba(0, 0, 0, 0.05);
    background: var(--gradient-glass);
}

/* Glass Morphism Cards */
.card-glass {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-xl);
}

/* Modern Form System */
.form-group {
    margin-bottom: var(--space-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-black);
    margin-bottom: var(--space-sm);
}

.form-control {
    width: 100%;
    padding: var(--space-md) var(--space-lg);
    font-family: var(--font-primary);
    font-size: 1rem;
    line-height: 1.5;
    color: var(--primary-black);
    background: var(--primary-white);
    border: 2px solid #E5E7EB;
    border-radius: var(--radius-lg);
    transition: all var(--transition-normal);
    box-shadow: var(--shadow-sm);
}

.form-control:focus {
    outline: none;
    border-color: var(--brand-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.form-control::placeholder {
    color: #9CA3AF;
}

.form-select {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
    background-position: right 0.75rem center;
    background-repeat: no-repeat;
    background-size: 1.5em 1.5em;
    padding-right: 2.5rem;
}

/* Modern Navigation */
.navbar {
    background: var(--gradient-dark);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding: var(--space-md) 0;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
}

.navbar-brand {
    font-family: var(--font-secondary);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-white);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.navbar-nav {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
    margin: 0;
    padding: 0;
}

.nav-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    font-weight: 500;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--primary-white);
    background: rgba(255, 255, 255, 0.1);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-primary);
    transition: all var(--transition-normal);
    transform: translateX(-50%);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Modern Table System */
.table-container {
    background: var(--primary-white);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.875rem;
}

.table th {
    background: var(--gradient-primary);
    color: var(--primary-white);
    font-weight: 600;
    text-align: left;
    padding: var(--space-lg);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.table td {
    padding: var(--space-lg);
    border-bottom: 1px solid #F3F4F6;
    vertical-align: middle;
}

.table tbody tr {
    transition: all var(--transition-normal);
}

.table tbody tr:hover {
    background: rgba(37, 99, 235, 0.02);
    transform: scale(1.01);
}

.table tbody tr:last-child td {
    border-bottom: none;
}

/* Status Indicators */
.status-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.status-success {
    background: rgba(16, 185, 129, 0.1);
    color: var(--brand-success);
}

.status-warning {
    background: rgba(245, 158, 11, 0.1);
    color: var(--brand-warning);
}

.status-danger {
    background: rgba(239, 68, 68, 0.1);
    color: var(--brand-danger);
}

.status-pending {
    background: rgba(6, 182, 212, 0.1);
    color: var(--brand-info);
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.4), transparent);
    animation: loading 1.5s infinite;
}

@keyframes loading {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes fadeInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes scaleIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.animate-fade-in-up {
    animation: fadeInUp 0.6s ease-out;
}

.animate-fade-in-left {
    animation: fadeInLeft 0.6s ease-out;
}

.animate-fade-in-right {
    animation: fadeInRight 0.6s ease-out;
}

.animate-scale-in {
    animation: scaleIn 0.6s ease-out;
}

/* Responsive Design */
@media (max-width: 1200px) {
    .container {
        max-width: 960px;
    }
}

@media (max-width: 992px) {
    .container {
        max-width: 720px;
    }
    
    .navbar-nav {
        flex-direction: column;
        gap: var(--space-sm);
    }
}

@media (max-width: 768px) {
    .container {
        max-width: 540px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    
    .card-body {
        padding: var(--space-lg);
    }
    
    .table th,
    .table td {
        padding: var(--space-md);
    }
}

@media (max-width: 576px) {
    .container {
        max-width: 100%;
        padding: 0 var(--space-md);
    }
    
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    
    .btn {
        width: 100%;
        justify-content: center;
    }
    
    .card-body {
        padding: var(--space-md);
    }
    
    .table {
        font-size: 0.75rem;
    }
    
    .table th,
    .table td {
        padding: var(--space-sm);
    }
}

/* Utility Classes */
.text-center { text-align: center; }
.text-left { text-align: left; }
.text-right { text-align: right; }

.text-primary { color: var(--brand-primary); }
.text-success { color: var(--brand-success); }
.text-warning { color: var(--brand-warning); }
.text-danger { color: var(--brand-danger); }
.text-info { color: var(--brand-info); }

.bg-primary { background: var(--brand-primary); }
.bg-success { background: var(--brand-success); }
.bg-warning { background: var(--brand-warning); }
.bg-danger { background: var(--brand-danger); }
.bg-info { background: var(--brand-info); }

.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--space-xs); }
.mb-2 { margin-bottom: var(--space-sm); }
.mb-3 { margin-bottom: var(--space-md); }
.mb-4 { margin-bottom: var(--space-lg); }
.mb-5 { margin-bottom: var(--space-xl); }

.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--space-xs); }
.mt-2 { margin-top: var(--space-sm); }
.mt-3 { margin-top: var(--space-md); }
.mt-4 { margin-top: var(--space-lg); }
.mt-5 { margin-top: var(--space-xl); }

.p-0 { padding: 0; }
.p-1 { padding: var(--space-xs); }
.p-2 { padding: var(--space-sm); }
.p-3 { padding: var(--space-md); }
.p-4 { padding: var(--space-lg); }
.p-5 { padding: var(--space-xl); }

.d-none { display: none; }
.d-block { display: block; }
.d-flex { display: flex; }
.d-inline-flex { display: inline-flex; }

.justify-content-center { justify-content: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-end { justify-content: flex-end; }

.align-items-center { align-items: center; }
.align-items-start { align-items: flex-start; }
.align-items-end { align-items: flex-end; }

.w-100 { width: 100%; }
.h-100 { height: 100%; }

.position-relative { position: relative; }
.position-absolute { position: absolute; }
.position-fixed { position: fixed; }

.overflow-hidden { overflow: hidden; }
.overflow-auto { overflow: auto; }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: var(--radius-full); }

.shadow { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Dark Mode Support */
@media (prefers-color-scheme: dark) {
    :root {
        --primary-black: #FFFFFF;
        --primary-white: #0A0A0A;
        --primary-gray: #1A1A1A;
        --primary-dark-gray: #F8F9FA;
    }
    
    body {
        background: var(--primary-gray);
        color: var(--primary-black);
    }
    
    .card {
        background: var(--primary-white);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .form-control {
        background: var(--primary-white);
        color: var(--primary-black);
        border-color: rgba(255, 255, 255, 0.2);
    }
}

/* Mobile Content Spacing */
@media (max-width: 768px) {
    /* Add bottom spacing for mobile pages to prevent content from being too close to footer */
    body {
        padding-bottom: 2rem;
    }
    
    .container {
        margin-bottom: 2rem;
    }
    
    /* Specific page containers */
    .dashboard-page,
    .deposits-page,
    .withdrawals-page,
    .profile-page,
    .transactions-page {
        margin-bottom: 3rem !important;
        padding-bottom: 2rem;
    }
    
    /* Main content areas */
    .main-content,
    .page-content {
        padding-bottom: 3rem;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .btn,
    .card-footer {
        display: none !important;
    }
    
    .card {
        box-shadow: none;
        border: 1px solid #000;
    }
    
    .table th {
        background: #000 !important;
        color: #fff !important;
    }
}