/* Institutional FinTech Palette */
:root {
    --color-bg-primary: #FFFFFF; /* Pure White */
    --color-bg-secondary: #F7F9FC; /* Light Clinical Grey */
    --color-navy: #0A2540; /* Deep Navy */
    --color-electric: #0074D9; /* Electric Blue */
    --color-electric-hover: #005bb5;
    --color-text-main: #333333;
    --color-text-light: #F7F9FC;
    --color-text-navy: #0A2540;
    --font-primary: 'Inter', sans-serif;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

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

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-smooth);
}

/* Header & Nav */
.global-header {
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background-color: var(--color-navy);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 80px;
}

.logo {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--color-text-light);
    letter-spacing: -0.02em;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 2.5rem;
}

.main-nav a {
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(247, 249, 252, 0.8);
}

.main-nav a:hover {
    color: var(--color-text-light);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px; /* Offset for header */
    background-color: var(--color-navy);
    background-image: url('assets/hero-bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(to right, rgba(10, 37, 64, 0.9) 0%, rgba(10, 37, 64, 0.6) 100%);
    z-index: 1;
}

.hero-container {
    position: relative;
    z-index: 10;
    max-width: 900px;
    margin: 0; /* Left aligned */
}

.headline {
    font-size: clamp(3rem, 5vw, 4.5rem);
    font-weight: 700;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 1.5rem;
    color: var(--color-text-light);
}

.subheadline {
    font-size: 1.25rem;
    color: rgba(247, 249, 252, 0.85);
    max-width: 700px;
    margin-bottom: 3rem;
    font-weight: 400;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.875rem 2rem;
    border-radius: 4px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--color-electric);
    color: #FFFFFF;
    border: none;
}

.btn-primary:hover {
    background-color: var(--color-electric-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px rgba(0, 116, 217, 0.4);
}

/* Problem Section */
.problem-section {
    padding: 8rem 0;
    background-color: var(--color-bg-primary);
    text-align: center;
}

.problem-container h2 {
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text-navy);
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.problem-container p {
    font-size: 1.25rem;
    color: var(--color-text-main);
    max-width: 800px;
    margin: 0 auto;
}

/* Features Grid */
.features-section {
    padding: 8rem 0;
    background-color: var(--color-bg-secondary);
}

.features-container {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.feature-card {
    background-color: var(--color-bg-primary);
    padding: 3rem 2rem;
    border-radius: 8px;
    box-shadow: 0 10px 30px -10px rgba(0, 0, 0, 0.05);
    border-top: 4px solid var(--color-electric);
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--color-text-navy);
    margin-bottom: 1rem;
}

.feature-card p {
    font-size: 1.05rem;
    color: var(--color-text-main);
}

/* Compliance Section */
.compliance-section {
    padding: 8rem 0;
    background-color: var(--color-bg-primary);
    text-align: center;
    border-bottom: 1px solid var(--color-bg-secondary);
}

.compliance-container h2 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-text-navy);
    margin-bottom: 1.5rem;
}

.compliance-container p {
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto 3rem auto;
}

.compliance-logos {
    display: flex;
    justify-content: center;
    gap: 2rem;
}

.logo-box {
    padding: 1.5rem 2.5rem;
    background-color: var(--color-bg-secondary);
    border-radius: 4px;
    font-weight: 600;
    color: var(--color-navy);
    border: 1px solid rgba(10, 37, 64, 0.1);
}

/* Vanguard Use-Case Section */
.vanguard-section {
    padding: 6rem 0;
    background-color: var(--color-bg-primary);
    text-align: center;
}

.vanguard-container h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--color-text-navy);
    margin-bottom: 1rem;
}

.vanguard-container p {
    font-size: 1.15rem;
    margin-bottom: 2.5rem;
}

/* Footer */
.global-footer {
    padding: 5rem 0 2rem 0;
    background-color: var(--color-navy);
    color: var(--color-text-light);
}

.footer-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4rem;
    flex-wrap: wrap;
    gap: 2rem;
}

.footer-logo {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.footer-left p {
    color: rgba(247, 249, 252, 0.7);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    gap: 2rem;
}

.footer-links a {
    color: var(--color-text-light);
    font-weight: 500;
    font-size: 0.95rem;
}

.footer-links a:hover {
    color: var(--color-electric);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 2rem;
    text-align: center;
}

.disclaimer {
    font-size: 0.7rem;
    color: rgba(247, 249, 252, 0.4);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.slide-in-up {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.is-visible {
    opacity: 1;
    transform: translate(0);
}

/* Responsive */
@media (max-width: 992px) {
    .features-container {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .headline {
        font-size: 2.5rem;
    }
    
    .main-nav {
        display: none;
    }
    
    .footer-top {
        flex-direction: column;
        text-align: center;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 1rem;
    }
}