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

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: #1A1D24;
    color: #F0F0F0;
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* CSS Variables for Theme Support */
:root {
    /* Light Theme (Default) */
    --main-bg: #ffffff;
    --navbar-bg: #f8f9fa;
    --sidebar-bg: #ffffff;
    --card-bg: #ffffff;
    --button-bg: #f8f9fa;
    --primary-text: #212529;
    --secondary-text: #6c757d;
    --accent-blue: #0066cc;
    --glow-shadow: rgba(0, 102, 204, 0.3);
    --transition: 0.3s ease;
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --border-color: #dee2e6;
    --input-bg: #ffffff;
    --modal-bg: #ffffff;
    --shadow-color: rgba(0, 0, 0, 0.1);
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 { font-size: clamp(2rem, 5vw, 3rem); }
h2 { font-size: clamp(1.5rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.25rem, 3vw, 2rem); }
h4 { font-size: clamp(1.1rem, 2.5vw, 1.5rem); }

p {
    color: var(--secondary-text);
    margin-bottom: 1rem;
}

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

@keyframes slideIn {
    from { transform: translateX(-100%); }
    to { transform: translateX(0); }
}

@keyframes glowPulse {
    0%, 100% { box-shadow: 0 0 10px var(--glow-shadow); }
    50% { box-shadow: 0 0 20px var(--glow-shadow), 0 0 30px var(--glow-shadow); }
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-10px); }
    60% { transform: translateY(-5px); }
}

/* Top Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--navbar-bg);
    backdrop-filter: blur(10px);
    border-bottom: 2px solid var(--accent-blue);
    box-shadow: 0 2px 20px var(--glow-shadow);
    z-index: 1000;
    transition: var(--transition);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.logo-icon {
    font-size: 1.8rem;
    filter: drop-shadow(0 0 10px var(--accent-blue));
    animation: bounce 2s infinite;
}

.logo-text {
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    font-weight: 700;
    color: var(--accent-blue);
    text-shadow: 0 0 10px var(--glow-shadow);
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    color: var(--primary-text);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 8px;
    transition: var(--transition);
    position: relative;
    white-space: nowrap;
}

.nav-link:hover {
    color: var(--accent-blue);
    text-shadow: 0 0 10px var(--glow-shadow);
    transform: translateY(-2px);
}

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

.nav-link:hover::after {
    width: 100%;
    box-shadow: 0 0 10px var(--glow-shadow);
}

.nav-extras {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.search-container {
    display: flex;
    align-items: center;
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 25px;
    padding: 0.5rem 1rem;
    transition: var(--transition);
    min-width: 200px;
}

.search-container:focus-within {
    box-shadow: 0 0 15px var(--glow-shadow);
    transform: scale(1.02);
}

.search-input {
    background: transparent;
    border: none;
    color: var(--primary-text);
    outline: none;
    flex: 1;
    font-size: 0.9rem;
}

.search-input::placeholder {
    color: var(--secondary-text);
}

.search-btn {
    background: transparent;
    border: none;
    color: var(--accent-blue);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.25rem;
    border-radius: 50%;
    transition: var(--transition);
}

.search-btn:hover {
    background: var(--accent-blue);
    color: white;
    transform: scale(1.1);
}

.user-profile {
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 50%;
    width: 45px;
    height: 45px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.user-profile:hover {
    box-shadow: 0 0 15px var(--glow-shadow);
    transform: scale(1.1);
}

.profile-icon {
    font-size: 1.4rem;
    color: var(--accent-blue);
}

.hamburger {
    display: none;
    flex-direction: column;
    background: transparent;
    border: none;
    cursor: pointer;
    gap: 4px;
    padding: 0.5rem;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--accent-blue);
    transition: var(--transition);
    border-radius: 2px;
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.hamburger.active span:nth-child(2) {
    opacity: 0;
}

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Main Container */
.main-container {
    display: flex;
    margin-top: 80px;
    min-height: calc(100vh - 80px);
}

/* Left Sidebar */
.sidebar {
    width: 320px;
    background: var(--sidebar-bg);
    border-right: 2px solid var(--accent-blue);
    box-shadow: 2px 0 20px var(--glow-shadow);
    overflow-y: auto;
    transition: var(--transition);
    animation: slideIn 0.5s ease;
    position: relative;
}

.sidebar.collapsed {
    width: 60px;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--accent-blue);
    background: var(--button-bg);
}

.sidebar-header h3 {
    color: var(--accent-blue);
    text-shadow: 0 0 10px var(--glow-shadow);
    margin: 0;
    font-size: 1.2rem;
}

.sidebar.collapsed .sidebar-header h3 {
    display: none;
}

.sidebar-toggle {
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    border-radius: 50%;
    width: 35px;
    height: 35px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.sidebar-toggle:hover {
    box-shadow: 0 0 10px var(--glow-shadow);
    transform: scale(1.1);
}

.sidebar.collapsed .sidebar-toggle {
    transform: rotate(180deg);
}

.sidebar-search {
    padding: 1rem;
    border-bottom: 1px solid var(--button-bg);
}

.sidebar.collapsed .sidebar-search {
    display: none;
}

.sidebar-search input {
    width: 100%;
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--primary-text);
    outline: none;
    transition: var(--transition);
    font-size: 0.9rem;
}

.sidebar-search input:focus {
    box-shadow: 0 0 10px var(--glow-shadow);
}

.sidebar-search input::placeholder {
    color: var(--secondary-text);
}

.tool-categories {
    padding: 0 1rem 1rem;
}

.sidebar.collapsed .tool-categories {
    padding: 0;
}

.category {
    margin-bottom: 1rem;
    border: 1px solid transparent;
    border-radius: 12px;
    overflow: hidden;
    transition: var(--transition);
    background: var(--card-bg);
}

.category:hover {
    border-color: var(--accent-blue);
    box-shadow: 0 0 15px var(--glow-shadow);
    transform: translateY(-2px);
}

.category-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 1rem;
    cursor: pointer;
    transition: var(--transition);
    background: var(--card-bg);
}

.category-header:hover {
    background: var(--button-bg);
}

.category-icon {
    font-size: 1.4rem;
    color: var(--accent-blue);
    min-width: 1.4rem;
    text-align: center;
}

.category-title {
    flex: 1;
    font-weight: 600;
    color: var(--primary-text);
    font-size: 0.95rem;
}

.sidebar.collapsed .category-title {
    display: none;
}

.category-arrow {
    color: var(--accent-blue);
    transition: var(--transition);
    font-size: 0.8rem;
}

.sidebar.collapsed .category-arrow {
    display: none;
}

.category.expanded .category-arrow {
    transform: rotate(180deg);
}

.category-tools {
    background: var(--button-bg);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
}

.category.expanded .category-tools {
    max-height: 500px;
}

.sidebar.collapsed .category-tools {
    display: none;
}

.tool-item {
    padding: 0.75rem 1rem;
    cursor: pointer;
    transition: var(--transition);
    border-left: 3px solid transparent;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tool-item:hover {
    background: var(--card-bg);
    border-left-color: var(--accent-blue);
    color: var(--accent-blue);
    text-shadow: 0 0 10px var(--glow-shadow);
    transform: translateX(5px);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    overflow-y: auto;
    animation: fadeIn 0.8s ease;
    background: linear-gradient(135deg, var(--main-bg) 0%, #1e2329 100%);
}

/* Hero Section */
.hero-section {
    position: relative;
    text-align: center;
    padding: 4rem 2rem;
    margin-bottom: 4rem;
    border-radius: 20px;
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--button-bg) 100%);
    border: 2px solid var(--accent-blue);
    box-shadow: 0 10px 40px var(--glow-shadow);
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, var(--glow-shadow) 50%, transparent 70%);
    animation: glowPulse 4s infinite;
    z-index: -1;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--primary-text);
    text-shadow: 0 0 20px var(--glow-shadow);
    margin-bottom: 1.5rem;
    background: linear-gradient(45deg, var(--primary-text), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: clamp(1rem, 2.5vw, 1.4rem);
    color: var(--secondary-text);
    margin-bottom: 2.5rem;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

.cta-button {
    padding: 1rem 2.5rem;
    border: 2px solid var(--accent-blue);
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    position: relative;
    overflow: hidden;
}

.cta-button::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;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button.primary {
    background: var(--accent-blue);
    color: white;
}

.cta-button.primary:hover {
    background: transparent;
    color: var(--accent-blue);
    box-shadow: 0 0 20px var(--glow-shadow);
    transform: translateY(-3px);
}

.cta-button.secondary {
    background: transparent;
    color: var(--accent-blue);
}

.cta-button.secondary:hover {
    background: var(--accent-blue);
    color: white;
    box-shadow: 0 0 20px var(--glow-shadow);
    transform: translateY(-3px);
}

.cta-button.tertiary {
    background: var(--button-bg);
    color: var(--primary-text);
    border-color: var(--secondary-text);
}

.cta-button.tertiary:hover {
    border-color: var(--accent-blue);
    color: var(--accent-blue);
    box-shadow: 0 0 15px var(--glow-shadow);
    transform: translateY(-3px);
}

/* Section Headers */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2.5rem;
    padding-bottom: 1rem;
    border-bottom: 2px solid var(--accent-blue);
    position: relative;
}

.section-header::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 100px;
    height: 2px;
    background: var(--accent-blue);
    box-shadow: 0 0 10px var(--glow-shadow);
}

.section-header h2 {
    color: var(--accent-blue);
    text-shadow: 0 0 10px var(--glow-shadow);
    margin: 0;
    font-size: clamp(1.5rem, 4vw, 2.5rem);
}

/* Tools Section */
.tools-filter select {
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    color: var(--primary-text);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    outline: none;
    cursor: pointer;
    transition: var(--transition);
    font-size: 0.9rem;
}

.tools-filter select:focus {
    box-shadow: 0 0 10px var(--glow-shadow);
}

.tools-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
    margin-bottom: 4rem;
}

.tool-card {
    background: var(--card-bg);
    border: 1px solid transparent;
    border-radius: 15px;
    padding: 2rem;
    transition: var(--transition);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.tool-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(45deg, transparent 30%, var(--glow-shadow) 50%, transparent 70%);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.tool-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-8px) scale(1.02);
    box-shadow: 0 20px 50px var(--glow-shadow);
}

.tool-card:hover::before {
    opacity: 0.1;
}

.tool-card-icon {
    font-size: 3rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
    filter: drop-shadow(0 0 10px var(--glow-shadow));
    text-align: center;
}

.tool-card h3 {
    color: var(--primary-text);
    margin-bottom: 1rem;
    font-size: 1.3rem;
    text-align: center;
}

.tool-card p {
    color: var(--secondary-text);
    margin-bottom: 2rem;
    line-height: 1.6;
    text-align: center;
    flex: 1;
}

.launch-tool-btn {
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    font-size: 0.95rem;
    align-self: center;
    min-width: 140px;
}

.launch-tool-btn:hover {
    background: var(--accent-blue);
    color: white;
    box-shadow: 0 0 15px var(--glow-shadow);
    transform: scale(1.05);
}

/* Portfolio Section */
.portfolio-section {
    margin-bottom: 4rem;
}

.add-investment-btn {
    background: var(--accent-blue);
    border: none;
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.add-investment-btn:hover {
    box-shadow: 0 0 20px var(--glow-shadow);
    transform: scale(1.05);
}

.portfolio-content {
    display: grid;
    gap: 2rem;
}

.portfolio-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.summary-card {
    background: var(--card-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.summary-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-blue), var(--success-color));
}

.summary-card:hover {
    box-shadow: 0 10px 30px var(--glow-shadow);
    transform: translateY(-5px);
}

.summary-card h3 {
    color: var(--secondary-text);
    font-size: 1rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.portfolio-value, .invested-value, .returns-value {
    font-size: clamp(1.5rem, 4vw, 2.5rem);
    font-weight: 700;
    color: var(--accent-blue);
    text-shadow: 0 0 10px var(--glow-shadow);
    margin-bottom: 0.5rem;
}

.portfolio-change {
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--success-color);
}

.portfolio-charts {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.chart-container {
    background: var(--card-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
}

.chart-container:hover {
    box-shadow: 0 10px 30px var(--glow-shadow);
    transform: translateY(-3px);
}

.chart-container h3 {
    color: var(--primary-text);
    margin-bottom: 1.5rem;
    font-size: 1.2rem;
}

.chart-container canvas {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
}

.portfolio-holdings {
    background: var(--card-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 15px;
    padding: 2rem;
}

.holdings-list {
    margin-top: 1rem;
}

.no-holdings {
    text-align: center;
    color: var(--secondary-text);
    padding: 3rem;
    font-style: italic;
    font-size: 1.1rem;
}

.holding-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem;
    border-bottom: 1px solid var(--button-bg);
    transition: var(--transition);
    border-radius: 8px;
    margin-bottom: 0.5rem;
}

.holding-item:hover {
    background: var(--button-bg);
    transform: translateX(5px);
}

.holding-info h4 {
    color: var(--primary-text);
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.holding-info p {
    color: var(--secondary-text);
    margin: 0;
    font-size: 0.9rem;
}

.holding-value {
    text-align: right;
}

.holding-amount {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent-blue);
    margin-bottom: 0.25rem;
}

.holding-change {
    font-size: 0.9rem;
    font-weight: 500;
}

.holding-change.positive {
    color: var(--success-color);
}

.holding-change.negative {
    color: var(--error-color);
}

/* Learning Section */
.learning-section {
    margin-bottom: 4rem;
}

.learning-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.learning-card {
    background: var(--card-bg);
    border: 1px solid transparent;
    border-radius: 15px;
    padding: 2rem;
    text-align: center;
    transition: var(--transition);
    cursor: pointer;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.learning-card:hover {
    border-color: var(--accent-blue);
    box-shadow: 0 15px 40px var(--glow-shadow);
    transform: translateY(-8px);
}

.card-icon {
    font-size: 3.5rem;
    margin-bottom: 1.5rem;
    color: var(--accent-blue);
    filter: drop-shadow(0 0 10px var(--glow-shadow));
}

.learning-card h3 {
    color: var(--primary-text);
    margin-bottom: 1rem;
    font-size: 1.3rem;
}

.learning-card p {
    color: var(--secondary-text);
    margin-bottom: 2rem;
    line-height: 1.6;
    flex: 1;
}

.learn-more-btn {
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    cursor: pointer;
    transition: var(--transition);
    font-weight: 600;
    align-self: center;
    min-width: 120px;
}

.learn-more-btn:hover {
    background: var(--accent-blue);
    color: white;
    box-shadow: 0 0 15px var(--glow-shadow);
    transform: scale(1.05);
}

/* Contact Section */
.contact-section {
    margin-bottom: 4rem;
}

.contact-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
}

.contact-form-container {
    background: var(--card-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 15px;
    padding: 2.5rem;
}

.contact-form {
    display: grid;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    color: var(--primary-text);
    margin-bottom: 0.5rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--primary-text);
    outline: none;
    transition: var(--transition);
    font-family: inherit;
    font-size: 0.95rem;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    box-shadow: 0 0 10px var(--glow-shadow);
    border-color: var(--accent-blue);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--secondary-text);
}

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

.submit-btn {
    background: var(--accent-blue);
    border: none;
    color: white;
    padding: 1rem 2rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    justify-self: start;
}

.submit-btn:hover {
    box-shadow: 0 0 20px var(--glow-shadow);
    transform: scale(1.02);
}

.submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.info-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    background: var(--card-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 15px;
    transition: var(--transition);
}

.info-item:hover {
    box-shadow: 0 8px 25px var(--glow-shadow);
    transform: translateY(-3px);
}

.info-icon {
    font-size: 2.2rem;
    color: var(--accent-blue);
    filter: drop-shadow(0 0 10px var(--glow-shadow));
    min-width: 2.2rem;
}

.info-content h4 {
    color: var(--primary-text);
    margin-bottom: 0.25rem;
    font-size: 1.1rem;
}

.info-content p {
    color: var(--secondary-text);
    margin: 0;
    font-size: 0.95rem;
}

/* Footer */
.footer {
    background: var(--sidebar-bg);
    border-top: 2px solid var(--accent-blue);
    box-shadow: 0 -2px 20px var(--glow-shadow);
    position: relative;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 2rem;
    padding: 3rem 2rem 2rem;
    max-width: 1400px;
    margin: 0 auto;
}

.footer-section h4 {
    color: var(--accent-blue);
    margin-bottom: 1rem;
    text-shadow: 0 0 10px var(--glow-shadow);
    font-size: 1.2rem;
}

.footer-section p {
    color: var(--secondary-text);
    line-height: 1.6;
    font-size: 0.95rem;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.75rem;
}

.footer-section ul li a {
    color: var(--secondary-text);
    text-decoration: none;
    transition: var(--transition);
    font-size: 0.95rem;
}

.footer-section ul li a:hover {
    color: var(--accent-blue);
    text-shadow: 0 0 10px var(--glow-shadow);
    transform: translateX(5px);
    display: inline-block;
}

.social-links {
    display: flex;
    gap: 1rem;
    margin-top: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 45px;
    height: 45px;
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 50%;
    color: var(--accent-blue);
    text-decoration: none;
    font-size: 1.4rem;
    transition: var(--transition);
}

.social-link:hover {
    box-shadow: 0 0 15px var(--glow-shadow);
    transform: scale(1.1);
    background: var(--accent-blue);
    color: white;
}

.newsletter-signup {
    display: flex;
    gap: 0.5rem;
    margin-top: 1rem;
}

.newsletter-signup input {
    flex: 1;
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--primary-text);
    outline: none;
    font-size: 0.9rem;
}

.newsletter-signup input::placeholder {
    color: var(--secondary-text);
}

.newsletter-signup input:focus {
    box-shadow: 0 0 10px var(--glow-shadow);
}

.newsletter-btn {
    background: var(--accent-blue);
    border: none;
    color: white;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
    font-size: 0.9rem;
    white-space: nowrap;
}

.newsletter-btn:hover {
    box-shadow: 0 0 15px var(--glow-shadow);
    transform: scale(1.02);
}

.footer-bottom {
    border-top: 1px solid var(--accent-blue);
    padding: 2rem;
    text-align: center;
}

.footer-disclaimer {
    background: var(--card-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 10px;
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.footer-disclaimer p {
    color: var(--secondary-text);
    font-size: 0.9rem;
    margin: 0;
    line-height: 1.5;
}

.footer-copyright p {
    color: var(--secondary-text);
    margin: 0;
    font-size: 0.9rem;
}

.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background: var(--accent-blue);
    border: none;
    color: white;
    width: 55px;
    height: 55px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.8rem;
    font-weight: bold;
    transition: var(--transition);
    opacity: 0;
    visibility: hidden;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    box-shadow: 0 0 20px var(--glow-shadow);
    transform: scale(1.1);
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-container {
    background: var(--card-bg);
    border: 2px solid var(--accent-blue);
    border-radius: 20px;
    max-width: 95vw;
    max-height: 90vh;
    width: 900px;
    overflow: hidden;
    box-shadow: 0 20px 60px var(--glow-shadow);
    transform: scale(0.8);
    transition: var(--transition);
}

.modal-overlay.active .modal-container {
    transform: scale(1);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--accent-blue);
    background: var(--button-bg);
}

.modal-header h3 {
    color: var(--accent-blue);
    margin: 0;
    text-shadow: 0 0 10px var(--glow-shadow);
    font-size: 1.4rem;
}

.modal-close {
    background: transparent;
    border: 1px solid var(--accent-blue);
    color: var(--accent-blue);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.8rem;
    font-weight: bold;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--accent-blue);
    color: white;
    box-shadow: 0 0 15px var(--glow-shadow);
    transform: scale(1.1);
}

.modal-content {
    padding: 2rem;
    max-height: 70vh;
    overflow-y: auto;
}

/* Loading Overlay */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 3000;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.loading-overlay.active {
    opacity: 1;
    visibility: visible;
}

.loading-spinner {
    width: 60px;
    height: 60px;
    border: 4px solid var(--button-bg);
    border-top: 4px solid var(--accent-blue);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 1.5rem;
}

.loading-text {
    color: var(--accent-blue);
    font-size: 1.3rem;
    font-weight: 600;
    text-shadow: 0 0 10px var(--glow-shadow);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    top: 100px;
    right: 2rem;
    z-index: 2500;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.toast {
    background: var(--card-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 10px;
    padding: 1rem 1.5rem;
    color: var(--primary-text);
    box-shadow: 0 5px 20px var(--glow-shadow);
    transform: translateX(100%);
    transition: var(--transition);
    max-width: 350px;
    min-width: 250px;
}

.toast.show {
    transform: translateX(0);
}

.toast.success {
    border-color: var(--success-color);
    box-shadow: 0 5px 20px rgba(0, 255, 136, 0.3);
}

.toast.error {
    border-color: var(--error-color);
    box-shadow: 0 5px 20px rgba(255, 71, 87, 0.3);
}

.toast.warning {
    border-color: var(--warning-color);
    box-shadow: 0 5px 20px rgba(255, 165, 2, 0.3);
}

/* Calculator Styles */
.calculator-form {
    background: var(--card-bg);
    border-radius: 15px;
    padding: 2rem;
}

.calculator-form h4 {
    color: var(--accent-blue);
    margin-bottom: 2rem;
    text-align: center;
    font-size: 1.5rem;
}

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

.calculator-form label {
    display: block;
    color: var(--primary-text);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.calculator-form input[type="number"],
.calculator-form input[type="range"] {
    width: 100%;
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--primary-text);
    outline: none;
    transition: var(--transition);
    margin-bottom: 0.5rem;
}

.calculator-form input[type="range"] {
    padding: 0;
    height: 8px;
    background: var(--button-bg);
    border-radius: 4px;
    appearance: none;
}

.calculator-form input[type="range"]::-webkit-slider-thumb {
    appearance: none;
    width: 20px;
    height: 20px;
    background: var(--accent-blue);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 0 10px var(--glow-shadow);
}

.calculator-form input[type="range"]::-moz-range-thumb {
    width: 20px;
    height: 20px;
    background: var(--accent-blue);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 0 10px var(--glow-shadow);
}

.calculate-btn {
    background: var(--accent-blue);
    border: none;
    color: white;
    padding: 1rem 2rem;
    border-radius: 25px;
    cursor: pointer;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
    width: 100%;
    margin: 1rem 0;
}

.calculate-btn:hover {
    box-shadow: 0 0 20px var(--glow-shadow);
    transform: scale(1.02);
}

.results-container {
    margin-top: 2rem;
}

.result-card {
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 12px;
    padding: 1.5rem;
}

.result-card h5 {
    color: var(--accent-blue);
    margin-bottom: 1rem;
    text-align: center;
    font-size: 1.2rem;
}

.result-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--card-bg);
}

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

.result-item.highlight {
    background: var(--card-bg);
    margin: 0 -1rem;
    padding: 1rem;
    border-radius: 8px;
    border: 1px solid var(--accent-blue);
}

.result-item span:first-child {
    color: var(--secondary-text);
    font-weight: 500;
}

.result-item span:last-child {
    color: var(--accent-blue);
    font-weight: 600;
    font-size: 1.1rem;
}

/* File Upload Styles */
.upload-area {
    border: 2px dashed var(--accent-blue);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--button-bg);
}

.upload-area:hover {
    background: var(--card-bg);
    box-shadow: 0 0 20px var(--glow-shadow);
}

.upload-icon {
    font-size: 3rem;
    color: var(--accent-blue);
    margin-bottom: 1rem;
}

.upload-hint {
    color: var(--secondary-text);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.uploaded-files {
    margin-top: 2rem;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--button-bg);
    border: 1px solid var(--accent-blue);
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 0.5rem;
}

.file-info {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
}

.file-icon {
    font-size: 1.5rem;
    color: var(--accent-blue);
}

.file-name {
    color: var(--primary-text);
    font-weight: 500;
}

.file-size {
    color: var(--secondary-text);
    font-size: 0.9rem;
}

.remove-file {
    background: var(--error-color);
    border: none;
    color: white;
    width: 30px;
    height: 30px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 1.2rem;
    font-weight: bold;
    transition: var(--transition);
}

.remove-file:hover {
    transform: scale(1.1);
}

/* Responsive Design */
@media (max-width: 1200px) {
    .nav-container {
        padding: 1rem 1.5rem;
    }
    
    .main-content {
        padding: 1.5rem;
    }
}

@media (max-width: 1024px) {
    .nav-menu {
        display: none;
    }
    
    .hamburger {
        display: flex;
    }
    
    .sidebar {
        width: 280px;
    }
    
    .hero-title {
        font-size: clamp(1.8rem, 4vw, 2.5rem);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
    }
    
    .tools-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
}

@media (max-width: 768px) {
    .nav-container {
        padding: 1rem;
    }
    
    .logo-text {
        font-size: 1rem;
    }
    
    .search-container {
        display: none;
    }
    
    .sidebar {
        position: fixed;
        left: -320px;
        top: 80px;
        height: calc(100vh - 80px);
        z-index: 1500;
        transition: left var(--transition);
        width: 320px;
    }
    
    .sidebar.active {
        left: 0;
    }
    
    .main-content {
        padding: 1rem;
        margin-left: 0;
    }
    
    .hero-section {
        padding: 2rem 1rem;
        margin-bottom: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-button {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }
    
    .tools-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .portfolio-summary {
        grid-template-columns: 1fr;
    }
    
    .portfolio-charts {
        grid-template-columns: 1fr;
    }
    
    .learning-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        padding: 2rem 1rem;
    }
    
    .modal-container {
        width: 95vw;
        margin: 1rem;
    }
    
    .modal-content {
        padding: 1rem;
    }
    
    .toast-container {
        right: 1rem;
        left: 1rem;
    }
    
    .toast {
        max-width: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .section-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    .back-to-top {
        bottom: 1rem;
        right: 1rem;
        width: 50px;
        height: 50px;
        font-size: 1.5rem;
    }
    
    .newsletter-signup {
        flex-direction: column;
        gap: 1rem;
    }
    
    .newsletter-btn {
        width: 100%;
    }
}

/* Print Styles */
@media print {
    .navbar,
    .sidebar,
    .footer,
    .modal-overlay,
    .loading-overlay,
    .toast-container,
    .back-to-top {
        display: none !important;
    }
    
    .main-content {
        margin-top: 0;
        padding: 0;
    }
    
    body {
        background: white;
        color: black;
    }
    
    .hero-section,
    .tool-card,
    .learning-card,
    .summary-card {
        border: 1px solid #ccc;
        box-shadow: none;
    }
}

/* 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;
}

/* Focus styles for keyboard navigation */
*:focus {
    outline: 2px solid var(--accent-blue);
    outline-offset: 2px;
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}/* Accessibility */

/* Market Section Styles */
.market-section {
    background: var(--card-bg);
    border-radius: 20px;
    padding: 2rem;
    margin-bottom: 3rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 32px var(--shadow-color);
}

.market-content {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.market-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.market-summary .summary-card {
    background: var(--button-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-align: center;
    transition: var(--transition);
}

.market-summary .summary-card:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.index-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-text);
    margin: 0.5rem 0;
}

.index-change {
    font-size: 1rem;
    font-weight: 600;
}

.index-change.positive {
    color: var(--success-color);
}

.index-change.negative {
    color: var(--error-color);
}

.market-movers {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.movers-section {
    background: var(--button-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.movers-section h3 {
    color: var(--accent-blue);
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--accent-blue);
    padding-bottom: 0.5rem;
}

.movers-list {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mover-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem;
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.mover-item:hover {
    border-color: var(--accent-blue);
    transform: translateX(3px);
}

.mover-info {
    display: flex;
    flex-direction: column;
}

.mover-symbol {
    font-weight: 600;
    color: var(--primary-text);
    font-size: 0.9rem;
}

.mover-name {
    font-size: 0.8rem;
    color: var(--secondary-text);
}

.mover-price {
    text-align: right;
}

.mover-current {
    font-weight: 600;
    color: var(--primary-text);
    font-size: 0.9rem;
}

.mover-change {
    font-size: 0.8rem;
    font-weight: 600;
}

.popular-stocks {
    background: var(--button-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
}

.popular-stocks h3 {
    color: var(--accent-blue);
    margin-bottom: 1rem;
    border-bottom: 2px solid var(--accent-blue);
    padding-bottom: 0.5rem;
}

.stocks-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stock-item {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.stock-item:hover {
    border-color: var(--accent-blue);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--shadow-color);
}

.stock-symbol {
    font-weight: 600;
    color: var(--primary-text);
    margin-bottom: 0.5rem;
}

.stock-price {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary-text);
    margin-bottom: 0.25rem;
}

.stock-change {
    font-size: 0.9rem;
    font-weight: 600;
}

.view-all-btn, .view-more-btn {
    background: var(--accent-blue);
    color: white;
    padding: 0.75rem 1.5rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    transition: var(--transition);
    display: inline-block;
}

.view-all-btn:hover, .view-more-btn:hover {
    background: #0052a3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px var(--glow-shadow);
}

.view-more-container {
    text-align: center;
    margin-top: 1rem;
}

.loading-message {
    text-align: center;
    color: var(--secondary-text);
    padding: 1rem;
    font-style: italic;
}

@media (max-width: 768px) {
    .market-summary {
        grid-template-columns: 1fr;
    }
    
    .market-movers {
        grid-template-columns: 1fr;
    }
    
    .stocks-grid {
        grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    }
}