:root {
    --primary-color: #fff;
    --primary-gradient: linear-gradient(135deg, #19486f 0%, #17476e 100%);
    --secondary-color: #6366f1;
    --success-color: #10b981;
    --success-gradient: linear-gradient(135deg, #10b981 0%, #059669 100%);
    --danger-color: #ef4444;
    --warning-color: #f59e0b;
    --dark-color: #111827;
    --darker-color: #0f172a;
    --light-color: #f8fafc;
    --gray-800: #1f2937;
    --gray-700: #374151;
    --gray-600: #4b5563;
    --gray-500: #6b7280;
    --gray-400: #9ca3af;
    --gray-300: #d1d5db;
    --white: #ffffff;
    --border-radius: 12px;
    --shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
    --shadow-hover: 0 15px 35px rgba(0, 0, 0, 0.4);
    --glow: 0 0 20px rgba(79, 70, 229, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 30%, #334155 100%);
    background-attachment: fixed;
    min-height: 100vh;
    color: var(--white);
    line-height: 1.6;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
            radial-gradient(circle at 20% 50%, rgba(79, 70, 229, 0.1) 0%, transparent 50%),
            radial-gradient(circle at 80% 20%, rgba(124, 58, 237, 0.1) 0%, transparent 50%),
            radial-gradient(circle at 40% 80%, rgba(16, 185, 129, 0.05) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { transform: translateY(0px) rotate(0deg); }
    33% { transform: translateY(-10px) rotate(1deg); }
    66% { transform: translateY(5px) rotate(-1deg); }
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    position: relative;
    z-index: 1;
}

.auth-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 1rem;
}

.brand-logo {
    text-align: center;
    margin-bottom: 3rem;
    animation: slideDown 0.8s ease-out;
}

.brand-logo img {
    max-width: 200px;
    height: auto;
    filter: drop-shadow(0 5px 15px rgba(79, 70, 229, 0.3));
    transition: var(--transition);
}

.brand-logo img:hover {
    transform: scale(1.05);
    filter: drop-shadow(0 8px 25px rgba(79, 70, 229, 0.5));
}

.card, .auth-card {
    background: rgba(17, 24, 39, 0.9);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(79, 70, 229, 0.2);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    overflow: hidden;
    transition: var(--transition);
    animation: slideUp 0.6s ease-out;
    color: var(--white);
}

.dashboard-card {
    background: white;
    border-radius: 15px;
    border: 1px solid #e5e7eb;
    transition: all 0.3s ease;
}

.dashboard-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.card:hover, .auth-card:hover {
    box-shadow: var(--shadow-hover), var(--glow);
    transform: translateY(-5px);
    border-color: rgba(79, 70, 229, 0.4);
}

.card-header {
    background: linear-gradient(135deg, #f9fafb 0%, #f3f4f6 100%);
    border-bottom: 2px solid #e5e7eb;
    padding: 1rem 1.5rem;
}

.card-header, .auth-header {
    background: var(--primary-gradient) !important;
    border: none;
    padding: 2rem;
    position: relative;
    overflow: hidden;
    color: var(--white);
}

canvas {
    max-height: 300px;
}

.btn-group button.active {
    background-color: #7c3aed;
    border-color: #7c3aed;
    color: white;
}

.card-header::before, .auth-header::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 0.5s;
}

.card:hover .card-header::before, .auth-card:hover .auth-header::before {
    left: 100%;
}

.card-header.bg-success, .auth-header.bg-gradient-success {
    background: var(--success-gradient) !important;
}

.card-header h3, .auth-header h3, .card-header h5 {
    margin: 0;
    font-weight: 600;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    color: var(--white);
}

.card-body, .auth-body {
    padding: 2.5rem;
    background: rgba(17, 24, 39, 0.95);
    color: var(--white);
}

.dashboard-container {
    background: var(--darker-color);
    min-height: 100vh;
    color: var(--white);
}

.welcome-card {
    background: linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%);
    color: white;
    border: none;
}

.welcome-card .opacity-75 {
    opacity: 0.9 !important;
}

.form-group {
    position: relative;
    margin-bottom: 1.5rem;
}

.form-label {
    font-weight: 600;
    color: var(--gray-300);
    margin-bottom: 0.5rem;
    display: block;
    transition: var(--transition);
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.5px;
}

.form-control {
    background: rgba(31, 41, 55, 0.8);
    border: 2px solid rgba(107, 114, 128, 0.3);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 1rem;
    transition: var(--transition);
    color: var(--white);
}

.form-control:focus {
    background: rgba(31, 41, 55, 0.95);
    border-color: var(--white);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.2);
    transform: translateY(-2px);
    color: var(--white);
    outline: none;
}

.form-control::placeholder {
    color: var(--gray-400);
    transition: var(--transition);
}

.form-control:focus::placeholder {
    opacity: 0.7;
    transform: translateY(-2px);
}

.form-control.is-valid {
    border-color: var(--success-color);
    box-shadow: 0 0 0 0.2rem rgba(16, 185, 129, 0.25);
}

.form-control.is-invalid {
    border-color: var(--danger-color);
    box-shadow: 0 0 0 0.2rem rgba(239, 68, 68, 0.25);
    animation: shake 0.5s ease-in-out;
}

.btn {
    border: none;
    border-radius: 8px;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    cursor: pointer;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: all 0.3s ease;
    transform: translate(-50%, -50%);
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--primary-gradient);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.4);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(79, 70, 229, 0.5);
    color: var(--white);
}

.btn-success {
    background: var(--success-gradient);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.4);
}

.btn-success:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.5);
    color: var(--white);
}

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

.btn-outline-primary:hover {
    background: var(--primary-color);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-outline-secondary {
    background: transparent;
    color: var(--gray-400);
    border: 2px solid var(--gray-600);
}

.btn-outline-secondary:hover {
    background: var(--gray-600);
    color: var(--white);
    transform: translateY(-2px);
}

.btn-secondary {
    background: var(--gray-600);
    color: var(--white);
}

.btn-secondary:hover {
    background: var(--gray-500);
    color: var(--white);
    transform: translateY(-2px);
}

.btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    transform: none !important;
}

.alert {
    border: none;
    border-radius: 8px;
    padding: 1rem 1.5rem;
    margin-bottom: 1.5rem;
    animation: slideDown 0.3s ease-out;
}

.alert-success {
    background: rgba(16, 185, 129, 0.15);
    border-left: 4px solid var(--success-color);
    color: var(--success-color);
}

.alert-danger {
    background: rgba(239, 68, 68, 0.15);
    border-left: 4px solid var(--danger-color);
    color: var(--danger-color);
}

.alert-info {
    background: rgba(79, 70, 229, 0.15);
    border-left: 4px solid var(--primary-color);
    color: var(--primary-color);
}

.alert-warning {
    background: rgba(245, 158, 11, 0.15);
    border-left: 4px solid var(--warning-color);
    color: var(--warning-color);
}

.spinner-border-sm {
    width: 1rem;
    height: 1rem;
    margin-right: 0.5rem;
}

.modal-content {
    border: none;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    backdrop-filter: blur(20px);
    background: rgba(17, 24, 39, 0.95);
    color: var(--white);
}

.modal-header {
    background: var(--primary-gradient);
    color: var(--white);
    border: none;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.modal-body {
    background: rgba(17, 24, 39, 0.95);
    color: var(--white);
}

.modal-footer {
    background: rgba(17, 24, 39, 0.95);
    border: none;
}

.btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
}

#twofa-token {
    text-align: center;
    font-family: 'Courier New', monospace;
    font-size: 1.8rem;
    letter-spacing: 1rem;
    background: rgba(79, 70, 229, 0.1);
    border: 2px solid rgba(79, 70, 229, 0.3);
    color: var(--white);
}

#twofa-token:focus {
    background: rgba(79, 70, 229, 0.15);
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.3);
}

.bg-gradient-primary {
    background: var(--primary-gradient) !important;
    position: relative;
    overflow: hidden;
}

.bg-gradient-primary::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 2s ease-in-out infinite;
}

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

.dropdown-menu {
    border: none;
    border-radius: 8px;
    box-shadow: var(--shadow);
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(79, 70, 229, 0.2);
}

.dropdown-item {
    padding: 0.7rem 1.2rem;
    transition: var(--transition);
    color: var(--gray-300);
}

.dropdown-item:hover, .dropdown-item:focus {
    background: rgba(79, 70, 229, 0.2);
    color: var(--white);
    transform: translateX(5px);
}

.dropdown-toggle {
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: var(--white);
}

.dropdown-toggle:hover, .dropdown-toggle:focus {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    color: var(--white);
}

.d-grid .btn {
    margin-bottom: 0.5rem;
}

a {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

a:hover, a:focus {
    color: var(--secondary-color);
    text-decoration: underline;
}

.auth-links {
    text-align: center;
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 1px solid var(--gray-700);
}

.auth-links p {
    margin-bottom: 0.5rem;
    color: var(--gray-400);
}

.form-check-input:checked {
    background-color: var(--white);
    border-color: var(--white);
}

.form-check-label {
    color: var(--gray-300);
}

.form-text {
    color: var(--gray-400);
    font-size: 0.85rem;
}

.form-text small {
    color: var(--gray-400);
}

.invalid-feedback {
    display: block;
    font-size: 0.875rem;
    color: var(--danger-color);
    margin-top: 0.25rem;
    animation: slideDown 0.3s ease-out;
}

.password-strength {
    height: 4px;
    background: var(--gray-700);
    border-radius: 2px;
    margin-top: 0.5rem;
    overflow: hidden;
}

.password-strength-bar {
    height: 100%;
    border-radius: 2px;
    transition: var(--transition);
    width: 0%;
}

.strength-weak { background: var(--danger-color); width: 25%; }
.strength-fair { background: var(--warning-color); width: 50%; }
.strength-good { background: var(--secondary-color); width: 75%; }
.strength-strong { background: var(--success-color); width: 100%; }

.text-muted {
    color: var(--gray-400) !important;
}

.text-primary {
    color: var(--primary-color) !important;
}

.text-success {
    color: var(--success-color) !important;
}

.text-danger {
    color: var(--danger-color) !important;
}

.text-white {
    color: var(--white) !important;
}

.table {
    color: var(--white);
}

.table-light {
    background-color: var(--gray-800);
    color: var(--white);
}

.table-hover tbody tr:hover {
    background-color: rgba(79, 70, 229, 0.1);
}

.badge.bg-success {
    background-color: var(--success-color) !important;
}

.border-end {
    border-right: 1px solid var(--gray-700) !important;
}

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

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

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-5px); }
    75% { transform: translateX(5px); }
}

.floating-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    overflow: hidden;
    border-radius: 50%;
}

.particle {
    animation: float 4s ease-in-out infinite;
    pointer-events: none;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) rotate(0deg);
        opacity: 0.7;
    }
    33% {
        transform: translateY(-15px) rotate(120deg);
        opacity: 1;
    }
    66% {
        transform: translateY(10px) rotate(240deg);
        opacity: 0.8;
    }
}

@media (max-width: 768px) {
    .container, .auth-container .container {
        padding: 15px;
    }

    .card-body, .auth-body {
        padding: 1.5rem;
    }

    .brand-logo img {
        max-width: 150px;
    }

    .card-header h3, .auth-header h3 {
        font-size: 1.3rem;
    }
}

@media (max-width: 480px) {
    .card-body, .auth-body {
        padding: 1rem;
    }

    .btn {
        padding: 10px 20px;
        font-size: 0.9rem;
    }

    .brand-logo img {
        max-width: 120px;
    }
}

.market-card {
    background: rgba(31, 41, 55, 0.8);
    border: 1px solid rgba(107, 114, 128, 0.3);
    transition: var(--transition);
    cursor: pointer;
}

.market-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    border-color: var(--primary-color);
    background: rgba(31, 41, 55, 0.95);
}

.activity-item {
    background: rgba(31, 41, 55, 0.5);
    transition: var(--transition);
    border: 1px solid transparent;
}

.activity-item:hover {
    background: rgba(31, 41, 55, 0.8);
    border-color: var(--primary-color);
}

.toast {
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(79, 70, 229, 0.2);
    color: var(--white);
}

.toast-body {
    color: var(--white);
}

.loading {
    opacity: 0.7;
    pointer-events: none;
}

.loading::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 20px;
    height: 20px;
    margin: -10px 0 0 -10px;
    border: 2px solid var(--primary-color);
    border-radius: 50%;
    border-right-color: transparent;
    animation: spin 1s linear infinite;
}

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