:root {
    --bg-main: #ffffff;
    --bg-card: #f9fafb;
    --bg-surface: #f3f4f6;
    --text-primary: #111827;
    --text-secondary: #4b5563;
    --text-tertiary: #9ca3af;
    --accent: #4f46e5; /* Neo-bank Indigo */
    --accent-hover: #4338ca;
    --accent-light: #e0e7ff;
    --success: #10b981;
    --danger: #ef4444;
    --warning: #f59e0b;
    --border: #e5e7eb;
    --radius: 24px;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    --shadow-lg: 0 10px 40px rgba(79, 70, 229, 0.15);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

.hidden {
    display: none !important;
}

/* Landing Page - Neo Bank Style */
.landing-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 3rem;
    max-width: 1200px;
    margin: 0 auto;
}
.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.8rem;
}
.brand-name {
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
    color: var(--text-primary);
}
.nav-links {
    display: flex;
    align-items: center;
    gap: 2.5rem;
}
.nav-link {
    color: var(--text-secondary);
    font-weight: 600;
}
.nav-link:hover {
    color: var(--accent);
}

.landing-hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 6rem 2rem 4rem;
    max-width: 900px;
    margin: 0 auto;
}
.pill-badge {
    background: var(--accent-light);
    color: var(--accent);
    padding: 0.5rem 1rem;
    border-radius: 9999px;
    font-size: 0.875rem;
    font-weight: 700;
    margin-bottom: 2rem;
    display: inline-block;
}
.hero-title {
    font-size: 5rem;
    font-weight: 900;
    letter-spacing: -2.5px;
    margin-bottom: 1.5rem;
    line-height: 1.05;
    color: var(--text-primary);
}
.hero-title span {
    color: var(--accent);
}
.hero-subtitle {
    font-size: 1.35rem;
    color: var(--text-secondary);
    max-width: 700px;
    margin-bottom: 3.5rem;
    line-height: 1.6;
}

.features-section {
    background: var(--bg-surface);
    padding: 6rem 2rem;
    margin-top: 4rem;
}
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
}
.feature-card {
    background: var(--bg-main);
    padding: 2.5rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    text-align: left;
}
.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--accent-light);
    color: var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    font-weight: bold;
}
.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
}
.feature-card p {
    color: var(--text-secondary);
}

/* Advanced Loader */
#loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    z-index: 1000;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}
.loader-content {
    display: flex;
    flex-direction: column;
    align-items: center;
}
.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.8s cubic-bezier(0.5, 0, 0.5, 1) infinite;
    margin-bottom: 2rem;
}
@keyframes spin {
    to { transform: rotate(360deg); }
}
#loading-text {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
    transition: opacity 0.3s;
}

.success-checkmark {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--success);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    animation: scaleIn 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
}
.success-checkmark::after {
    content: '';
    width: 16px;
    height: 28px;
    border: solid white;
    border-width: 0 4px 4px 0;
    transform: rotate(45deg) translate(-2px, -4px);
}
@keyframes scaleIn {
    from { transform: scale(0); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

/* Auth Cards */
.view {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}
.center-view {
    align-items: center;
    justify-content: center;
    padding: 2rem;
    background: var(--bg-surface);
}
.auth-card {
    background: var(--bg-main);
    padding: 3.5rem 3rem;
    border-radius: var(--radius);
    width: 100%;
    max-width: 440px;
    box-shadow: var(--shadow);
    text-align: center;
}
.logo {
    width: 70px;
    height: 70px;
    object-fit: contain;
    margin-bottom: 2rem;
}
.auth-card h2 {
    font-size: 2rem;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 0.5rem;
}
.auth-card p {
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
}
form {
    display: flex;
    flex-direction: column;
    gap: 1.2rem;
}
input {
    width: 100%;
    padding: 1.1rem 1.2rem;
    background: var(--bg-card);
    border: 1px solid transparent;
    border-radius: 12px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}
input:focus {
    outline: none;
    background: var(--bg-main);
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-light);
}
.input-group {
    text-align: left;
}
.input-group label {
    display: block;
    font-size: 0.9rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-secondary);
}

/* Buttons */
.btn {
    padding: 1.1rem 1.5rem;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    display: inline-block;
    text-decoration: none;
}
.btn.small {
    padding: 0.8rem 1.5rem;
    font-size: 0.95rem;
}
.btn.large {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
    border-radius: 16px;
}
.btn.primary {
    background: var(--accent);
    color: white;
}
.btn.primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}
.btn.success { background: var(--success); color: white; }
.btn.danger { background: var(--danger); color: white; }
.btn.warning { background: var(--warning); color: white; }
.btn.secondary { background: var(--bg-card); color: var(--text-primary); }
.btn.outline { background: transparent; border: 1px solid var(--border); color: var(--text-primary); }

.btn.outline:hover, .btn.secondary:hover {
    background: var(--bg-surface);
}

/* Dashboard Styles */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 3rem;
    background: var(--bg-main);
    border-bottom: 1px solid var(--border);
    max-width: 1400px;
    margin: 0 auto;
}
.logo-small {
    width: 40px;
    height: 40px;
    object-fit: contain;
}
.balance {
    font-size: 1.35rem;
    font-weight: 800;
    color: var(--text-primary);
}
.container {
    padding: 2rem 3rem;
    max-width: 1400px;
    margin: 0 auto;
}
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 2rem;
}
.card {
    background: var(--bg-main);
    padding: 2rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
}
.card h3 {
    font-size: 1.2rem;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    font-weight: 700;
}
.search-box {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}
.stock-info {
    background: var(--bg-card);
    padding: 1.5rem;
    border-radius: 16px;
}
#stock-price {
    font-size: 2.5rem;
    font-weight: 800;
    letter-spacing: -1px;
}
#stock-currency {
    color: var(--text-secondary);
    font-weight: 500;
}
.trade-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 1.5rem;
}
.trade-actions input {
    width: 100px;
}
.table-container {
    overflow-x: auto;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th, td {
    padding: 1.2rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}
th {
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}
tbody tr:hover {
    background: var(--bg-card);
}
.loan-actions {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 768px) {
    .hero-title { font-size: 3rem; }
    .landing-nav { padding: 1rem 1.5rem; }
    .container { padding: 1.5rem; }
}