/* The Trader's Edge - Modern Stylesheet */
/* Fixed and Optimized for Better Performance */

/* ===== CSS VARIABLES ===== */
:root {
    --primary-color: #2962ff;
    --primary-dark: #1e88e5;
    --secondary-color: #7c4dff;
    --accent-color: #ffd600;
    --success-color: #00c853;
    --danger-color: #ff3d00;
    --warning-color: #ff9800;
    --info-color: #2196f3;
    --dark-color: #1a1a2e;
    --light-bg: #f8f9fa;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border-color: #e0e0e0;
    --white: #ffffff;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.15);
    --transition-speed: 0.3s;
}

/* ===== GLOBAL RESET ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--text-primary);
    background-color: var(--light-bg);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--dark-color);
    margin-bottom: 1rem;
}

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: 1rem;
    color: var(--text-primary);
}

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

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

/* ===== NAVIGATION ===== */
.navbar {
    box-shadow: var(--shadow-md);
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    padding: 0.75rem 0;
}

.navbar-brand {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--white) !important;
    letter-spacing: -0.5px;
}

.navbar-dark .navbar-nav .nav-link {
    color: rgba(255, 255, 255, 0.95) !important;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: all var(--transition-speed) ease;
}

.navbar-dark .navbar-nav .nav-link:hover {
    background: rgba(255, 255, 255, 0.15);
    color: var(--white) !important;
}

.navbar-dark .navbar-nav .nav-link.active {
    background: rgba(255, 255, 255, 0.2);
    color: var(--white) !important;
}

/* ===== BUTTONS ===== */
.btn {
    border-radius: 12px;
    padding: 0.65rem 1.75rem;
    font-weight: 600;
    font-size: 0.95rem;
    border: none;
    cursor: pointer;
    transition: all var(--transition-speed) cubic-bezier(0.4, 0, 0.2, 1);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(41, 98, 255, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(41, 98, 255, 0.4);
    color: var(--white);
}

.btn-warning {
    background: linear-gradient(135deg, #ffd600 0%, #ff6f00 100%);
    color: #000000;
    box-shadow: 0 4px 15px rgba(255, 214, 0, 0.3);
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 214, 0, 0.4);
    color: #000000;
}

.btn-success {
    background: linear-gradient(135deg, #00c853 0%, #00897b 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(0, 200, 83, 0.3);
}

.btn-danger {
    background: linear-gradient(135deg, #ff3d00 0%, #dd2c00 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(255, 61, 0, 0.3);
}

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

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

.btn-lg {
    padding: 0.85rem 2.5rem;
    font-size: 1.1rem;
}

.btn-sm {
    padding: 0.5rem 1.25rem;
    font-size: 0.875rem;
}

/* ===== CARDS ===== */
.card {
    border: 1px solid var(--border-color);
    border-radius: 16px;
    overflow: hidden;
    background: var(--white);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-speed) ease;
}

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

.card-header {
    font-weight: 600;
    background: var(--white);
    border-bottom: 2px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    color: var(--dark-color);
}

.card-body {
    padding: 1.5rem;
}

.hover-lift {
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* ===== FORMS ===== */
.form-control,
.form-select {
    border-radius: 12px;
    border: 2px solid var(--border-color);
    padding: 0.75rem 1.25rem;
    font-size: 1rem;
    color: var(--text-primary);
    background-color: var(--white);
    transition: all var(--transition-speed) ease;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(41, 98, 255, 0.15);
    outline: none;
    background-color: var(--white);
    color: var(--text-primary);
}

.form-label {
    font-weight: 600;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

textarea.form-control {
    min-height: 120px;
    resize: vertical;
}

/* ===== BADGES ===== */
.badge {
    padding: 0.5rem 1rem;
    font-weight: 600;
    border-radius: 20px;
    font-size: 0.875rem;
}

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

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

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

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

/* ===== ALERTS ===== */
.alert {
    border-radius: 12px;
    border: none;
    padding: 1.25rem 1.5rem;
    box-shadow: var(--shadow-sm);
    font-weight: 500;
}

.alert-success {
    background-color: #e8f5e9;
    color: #1b5e20;
}

.alert-danger {
    background-color: #ffebee;
    color: #b71c1c;
}

.alert-info {
    background-color: #e3f2fd;
    color: #0d47a1;
}

.alert-warning {
    background-color: #fff3e0;
    color: #e65100;
}

/* ===== HERO SECTION ===== */
.hero-section {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    position: relative;
    overflow: hidden;
    padding: 3rem 0;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 1440 320"><path fill="%23ffffff" fill-opacity="0.05" d="M0,96L48,112C96,128,192,160,288,160C384,160,480,128,576,122.7C672,117,768,139,864,154.7C960,171,1056,181,1152,165.3C1248,149,1344,107,1392,85.3L1440,64L1440,320L1392,320C1344,320,1248,320,1152,320C1056,320,960,320,864,320C768,320,672,320,576,320C480,320,384,320,288,320C192,320,96,320,48,320L0,320Z"></path></svg>') no-repeat bottom;
    background-size: cover;
    opacity: 1;
}

.stat-card {
    background: var(--white);
    border-radius: 16px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: transform var(--transition-speed) ease;
}

.stat-card:hover {
    transform: scale(1.05);
}

.stat-card h3 {
    color: var(--dark-color);
    margin-bottom: 0.25rem;
}

/* ===== GRADIENTS ===== */
.bg-gradient-primary {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%) !important;
    color: var(--white);
}

.bg-gradient-secondary {
    background: linear-gradient(135deg, #7c4dff 0%, #651fff 100%) !important;
    color: var(--white);
}

.bg-gradient-success {
    background: linear-gradient(135deg, #00c853 0%, #00897b 100%) !important;
    color: var(--white);
}

.bg-gradient-warning {
    background: linear-gradient(135deg, #ffa726 0%, #ff9800 100%) !important;
    color: var(--white);
}

/* ===== DROPDOWN MENUS ===== */
.dropdown-menu {
    border: none;
    box-shadow: var(--shadow-lg);
    border-radius: 12px;
    padding: 0.5rem;
    margin-top: 0.5rem;
}

.dropdown-item {
    padding: 0.75rem 1.25rem;
    border-radius: 8px;
    transition: all var(--transition-speed) ease;
    color: var(--text-primary);
}

.dropdown-item:hover {
    background: linear-gradient(to right, #f8f9fa, #e9ecef);
    color: var(--primary-color);
    transform: translateX(5px);
}

.dropdown-divider {
    margin: 0.5rem 0;
    border-color: var(--border-color);
}

/* ===== LIST GROUPS ===== */
.list-group-item {
    border: none;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    color: var(--text-primary);
    background-color: var(--white);
    transition: all var(--transition-speed) ease;
}

.list-group-item:hover {
    background-color: #f8f9fa;
    color: var(--primary-color);
}

.list-group-item:last-child {
    border-bottom: none;
}

.list-group-item-action {
    cursor: pointer;
}

/* ===== IMAGES ===== */
img {
    max-width: 100%;
    height: auto;
}

.rounded-circle {
    border-radius: 50% !important;
}

.img-fluid {
    max-width: 100%;
    height: auto;
}

/* ===== TEXT UTILITIES ===== */
.text-muted {
    color: var(--text-muted) !important;
}

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

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

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

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

.fw-bold {
    font-weight: 700 !important;
}

.fw-semibold {
    font-weight: 600 !important;
}

.fw-normal {
    font-weight: 400 !important;
}

/* ===== SHADOWS ===== */
.shadow-sm {
    box-shadow: var(--shadow-sm) !important;
}

.shadow {
    box-shadow: var(--shadow-md) !important;
}

.shadow-lg {
    box-shadow: var(--shadow-lg) !important;
}

/* ===== SCROLLBAR CUSTOM ===== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: #f1f1f1;
    border-radius: 10px;
}

::-webkit-scrollbar-thumb {
    background: var(--primary-color);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ===== LOADING SPINNER ===== */
.spinner-border {
    border: 3px solid rgba(0, 0, 0, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ===== ANIMATIONS ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.slide-down {
    animation: slideDown 0.3s ease-out;
}

/* ===== MOBILE RESPONSIVE ===== */
@media (max-width: 768px) {
    html {
        font-size: 14px;
    }
    
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    
    .hero-section {
        padding: 2rem 0;
    }
    
    .stat-card {
        margin-bottom: 1rem;
    }
    
    .btn {
        padding: 0.6rem 1.5rem;
        font-size: 0.9rem;
    }
    
    .card-body {
        padding: 1rem;
    }
}

@media (max-width: 576px) {
    .btn-lg {
        padding: 0.75rem 2rem;
        font-size: 1rem;
    }
}

/* ===== ACCESSIBILITY ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

a:focus,
button:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* ===== UTILITY CLASSES ===== */
.d-flex {
    display: flex !important;
}

.align-items-center {
    align-items: center !important;
}

.justify-content-between {
    justify-content: space-between !important;
}

.gap-2 {
    gap: 0.5rem !important;
}

.gap-3 {
    gap: 1rem !important;
}

.mb-0 { margin-bottom: 0 !important; }
.mb-1 { margin-bottom: 0.25rem !important; }
.mb-2 { margin-bottom: 0.5rem !important; }
.mb-3 { margin-bottom: 1rem !important; }
.mb-4 { margin-bottom: 1.5rem !important; }
.mb-5 { margin-bottom: 3rem !important; }

.mt-0 { margin-top: 0 !important; }
.mt-1 { margin-top: 0.25rem !important; }
.mt-2 { margin-top: 0.5rem !important; }
.mt-3 { margin-top: 1rem !important; }
.mt-4 { margin-top: 1.5rem !important; }
.mt-5 { margin-top: 3rem !important; }

.p-0 { padding: 0 !important; }
.p-1 { padding: 0.25rem !important; }
.p-2 { padding: 0.5rem !important; }
.p-3 { padding: 1rem !important; }
.p-4 { padding: 1.5rem !important; }
.p-5 { padding: 3rem !important; }

/* ===== PRINT STYLES ===== */
@media print {
    .navbar,
    footer,
    .btn,
    .sidebar {
        display: none !important;
    }
    
    body {
        background: white;
        color: black;
    }
}

/* ===== PERFORMANCE OPTIMIZATION ===== */
.will-change-transform {
    will-change: transform;
}

.will-change-opacity {
    will-change: opacity;
}

/* ===== END OF STYLESHEET ===== */