/* ============================================
   PAYOUT GATEWAY - FINTECH DESIGN SYSTEM
   Modern, responsive, premium UI for payout gateway (Light Theme)
   ============================================ */

/* Import Google Font */
@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@300;400;500;600;700;800&family=Inter:wght@400;500;600&display=swap');

/* ============================================
   CSS VARIABLES & DESIGN TOKENS
   ============================================ */
:root {
    /* Colors - Light Fintech Palette */
    --primary: #2563eb;         /* Tailwind Blue 600 */
    --primary-dark: #1d4ed8;    /* Tailwind Blue 700 */
    --primary-light: #3b82f6;   /* Tailwind Blue 500 */
    --secondary: #0ea5e9;       /* Tailwind Sky 500 */
    --secondary-light: #38bdf8; /* Tailwind Sky 400 */
    --accent: #06b6d4;          /* Tailwind Cyan 500 */
    --warning: #f59e0b;
    --error: #ef4444;
    --success: #10b981;

    /* Neutral Colors - Light Theme Focus */
    --bg-main: #f8fafc;         /* Tailwind Slate 50 */
    --bg-card: #ffffff;         /* Pure White */
    --bg-hover: #f1f5f9;        /* Tailwind Slate 100 */
    --text-primary: #0f172a;    /* Tailwind Slate 900 */
    --text-secondary: #475569;  /* Tailwind Slate 600 */
    --text-muted: #64748b;      /* Tailwind Slate 500 */
    --border: #e2e8f0;          /* Tailwind Slate 200 */
    --border-light: #f1f5f9;    /* Tailwind Slate 100 */
    --border-dark: #cbd5e1;     /* Tailwind Slate 300 */

    /* Spacing */
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;
    --spacing-2xl: 48px;

    /* Typography */
    --font-heading: 'Plus Jakarta Sans', sans-serif;
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 12px;
    --font-size-sm: 13px;
    --font-size-base: 15px;
    --font-size-lg: 17px;
    --font-size-xl: 20px;
    --font-size-2xl: 24px;
    --font-size-3xl: 32px;
    --font-size-4xl: 40px;

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

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.025);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.05), 0 10px 10px -5px rgba(0, 0, 0, 0.02);
    --shadow-glow: 0 10px 25px -5px rgba(37, 99, 235, 0.4);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 200ms ease;
    --transition-slow: 300ms ease;

    /* Layout */
    --sidebar-width: 260px;
    --header-height: 70px;
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-main);
    overflow-x: hidden;
}

/* ============================================
   TYPOGRAPHY
   ============================================ */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: var(--spacing-md);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

h1 { font-size: var(--font-size-4xl); }
h2 { font-size: var(--font-size-3xl); }
h3 { font-size: var(--font-size-2xl); }
h4 { font-size: var(--font-size-xl); }
h5 { font-size: var(--font-size-lg); }
h6 { font-size: var(--font-size-base); }

p {
    margin-bottom: var(--spacing-md);
    color: var(--text-secondary);
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition-base);
}

a:hover {
    color: var(--primary-dark);
}

/* ============================================
   LAYOUT COMPONENTS
   ============================================ */
.container {
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

.page-wrapper {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Auth Layout (Login/Signup) */
.auth-layout {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--bg-main) 0%, #e0e7ff 100%);
    padding: var(--spacing-lg);
    position: relative;
    overflow: hidden;
}

.auth-layout::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(37, 99, 235, 0.05) 0%, transparent 70%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); opacity: 0.5; }
    50% { transform: scale(1.1); opacity: 0.8; }
}

/* Dashboard Layout */
.dashboard-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-card);
    border-right: 1px solid var(--border);
    position: fixed;
    left: 0;
    top: 0;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
    transition: transform var(--transition-base);
}

.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
}

.sidebar-logo {
    font-family: var(--font-heading);
    font-size: var(--font-size-2xl);
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sidebar-nav {
    padding: var(--spacing-md);
}

.nav-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: 12px var(--spacing-md);
    margin-bottom: var(--spacing-xs);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
    cursor: pointer;
    font-weight: 600;
}

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

.nav-item.active {
    background: #eff6ff; /* Tailwind Blue 50 */
    color: var(--primary);
    border-left: 3px solid var(--primary);
}

.nav-icon {
    width: 20px;
    height: 20px;
}

.main-content {
    margin-left: var(--sidebar-width);
    flex: 1;
    padding: var(--spacing-xl);
    width: calc(100% - var(--sidebar-width));
}

/* ============================================
   CARD COMPONENTS
   ============================================ */
.card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
}

.card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--border-dark);
}

.card-header {
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-md);
    border-bottom: 1px solid var(--border-light);
}

.card-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin: 0;
}

.card-subtitle {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    margin-top: var(--spacing-xs);
}

/* Glass Card Effect */
.glass-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.5);
    box-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.05);
}

/* ============================================
   API TOKEN COMPONENT (New)
   ============================================ */
.token-container {
    background: var(--bg-main);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.token-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.token-title {
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.token-box {
    display: flex;
    align-items: center;
    background: var(--bg-card);
    border: 1px dashed var(--border-dark);
    border-radius: var(--radius-sm);
    padding: 10px 16px;
    position: relative;
}

.token-text {
    font-family: monospace;
    color: var(--primary-dark);
    font-size: var(--font-size-base);
    flex: 1;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    user-select: all;
}

.btn-copy {
    background: var(--bg-hover);
    color: var(--text-secondary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 6px 12px;
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-copy:hover {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ============================================
   FORM COMPONENTS
   ============================================ */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-input,
.form-select,
.form-textarea {
    width: 100%;
    padding: 12px 16px;
    font-size: var(--font-size-base);
    font-family: var(--font-family);
    color: var(--text-primary);
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
    box-shadow: inset 0 1px 2px rgba(0, 0, 0, 0.02);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

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

.form-error {
    font-size: var(--font-size-xs);
    color: var(--error);
    margin-top: var(--spacing-xs);
    font-weight: 500;
}

/* ============================================
   BUTTON COMPONENTS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: 12px 24px;
    font-size: var(--font-size-base);
    font-weight: 600;
    font-family: var(--font-family);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
    text-decoration: none;
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

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

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: var(--bg-card);
    color: var(--text-primary);
    border: 1px solid var(--border-dark);
}

.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: var(--text-secondary);
}

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

.btn-block { width: 100%; }
.btn-sm { padding: 8px 16px; font-size: var(--font-size-sm); }
.btn-lg { padding: 16px 32px; font-size: var(--font-size-lg); }

/* ============================================
   STAT CARDS
   ============================================ */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.stat-card {
    background: var(--bg-card);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    border: 1px solid var(--border);
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary) 0%, var(--accent) 100%);
}

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

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 700;
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-family: var(--font-heading);
    font-size: var(--font-size-3xl);
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.stat-change {
    font-size: var(--font-size-xs);
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    font-weight: 600;
}

.stat-change.positive { color: var(--success); }
.stat-change.negative { color: var(--error); }

/* ============================================
   TABLE COMPONENTS
   ============================================ */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    background: var(--bg-card);
}

.table {
    width: 100%;
    border-collapse: collapse;
}

.table thead {
    background: var(--bg-main);
}

.table th {
    padding: var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-size: var(--font-size-sm);
    font-weight: 700;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 2px solid var(--border);
}

.table td {
    padding: var(--spacing-md) var(--spacing-lg);
    border-bottom: 1px solid var(--border-light);
    color: var(--text-secondary);
    font-weight: 500;
}

.table tbody tr {
    transition: background var(--transition-fast);
}

.table tbody tr:hover {
    background: var(--bg-hover);
}

/* ============================================
   BADGE COMPONENTS
   ============================================ */
.badge {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: var(--font-size-xs);
    font-weight: 700;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-success { background: #dcfce7; color: #166534; border: 1px solid #bbf7d0; }
.badge-warning { background: #fef3c7; color: #92400e; border: 1px solid #fde68a; }
.badge-error { background: #fee2e2; color: #991b1b; border: 1px solid #fecaca; }
.badge-info { background: #dbeafe; color: #1e40af; border: 1px solid #bfdbfe; }

/* ============================================
   TOAST NOTIFICATION
   ============================================ */
.toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md) var(--spacing-lg);
    box-shadow: var(--shadow-xl);
    z-index: 9999;
    min-width: 300px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from { transform: translateX(400px); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

.toast-success { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--error); }
.toast-warning { border-left: 4px solid var(--warning); }

/* ============================================
   MOBILE MENU
   ============================================ */
.mobile-menu-btn {
    display: none;
    position: fixed;
    top: 15px;
    right: 15px;
    z-index: 101;
    background: var(--bg-card);
    border: 1px solid var(--border-dark);
    border-radius: var(--radius-md);
    padding: 8px;
    cursor: pointer;
    box-shadow: var(--shadow-sm);
}

.mobile-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(4px);
    z-index: 99;
}

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 768px) {
    :root {
        --spacing-md: 12px;
        --spacing-lg: 18px;
        --spacing-xl: 24px;
        --font-size-base: 14px;
        --font-size-xl: 18px;
        --font-size-2xl: 22px;
        --font-size-3xl: 28px;
        --font-size-4xl: 34px;
    }

    .sidebar {
        transform: translateX(-100%);
    }

    .sidebar.active {
        transform: translateX(0);
    }

    .mobile-menu-btn {
        display: block;
    }

    .mobile-overlay.active {
        display: block;
    }

    .main-content {
        margin-left: 0;
        width: 100%;
        padding: var(--spacing-lg);
        padding-top: 70px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .table-wrapper {
        border-radius: 0;
        margin: 0 calc(var(--spacing-lg) * -1);
        border-left: none;
        border-right: none;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-sm: 6px;
        --spacing-md: 10px;
        --spacing-lg: 12px;
        --spacing-xl: 16px;
    }

    .auth-layout {
        padding: var(--spacing-md);
    }

    .card {
        padding: var(--spacing-md);
    }
}

/* ============================================
   UTILITY CLASSES
   ============================================ */
.text-center { text-align: center; }
.text-right { text-align: right; }
.text-muted { color: var(--text-muted); }
.text-primary { color: var(--primary); }
.text-success { color: var(--success); }
.text-error { color: var(--error); }
.text-warning { color: var(--warning); }
.mt-0 { margin-top: 0; }
.mt-1 { margin-top: var(--spacing-sm); }
.mt-2 { margin-top: var(--spacing-md); }
.mt-3 { margin-top: var(--spacing-lg); }
.mt-4 { margin-top: var(--spacing-xl); }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: var(--spacing-sm); }
.mb-2 { margin-bottom: var(--spacing-md); }
.mb-3 { margin-bottom: var(--spacing-lg); }
.mb-4 { margin-bottom: var(--spacing-xl); }
.d-flex { display: flex; }
.flex-column { flex-direction: column; }
.align-items-center { align-items: center; }
.justify-content-between { justify-content: space-between; }
.justify-content-center { justify-content: center; }
.gap-1 { gap: var(--spacing-sm); }
.gap-2 { gap: var(--spacing-md); }
.gap-3 { gap: var(--spacing-lg); }
.w-100 { width: 100%; }
.h-100 { height: 100%; }
.hidden { display: none; }