:root {
    --primary: #0f172a;       /* Deep Slate/Navy */
    --secondary: #1e3a8a;     /* Professional Corporate Blue */
    --accent: #2563eb;        /* Bright Active Blue */
    --light: #f8fafc;
    --dark: #020617;
    --text-muted: rgba(255, 255, 255, 0.8);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

body {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    color: #fff;
    overflow-x: hidden;
}

/* Header Styles */
.header {
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 1px;
    color: #fff;
    display: flex;
    align-items: center;
    gap: 10px;
}

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

.nav-links a {
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    padding: 8px 16px;
    border-radius: 30px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.nav-links a:hover {
    background: rgba(255, 255, 255, 0.15);
}

.nav-links a.btn-login {
    background: var(--accent);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.3);
}

.nav-links a.btn-login:hover {
    background: #1d4ed8;
    transform: translateY(-2px);
}

/* Hero Section with Online Background Image */
.hero {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 6rem 2rem;
    position: relative;
    z-index: 1;
}

.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Online Corporate Boardroom background image */
    background: url('https://images.unsplash.com/photo-1486406146926-c627a92ad1ab?q=80&w=1920') no-repeat center center;
    background-size: cover;
    /* Dark overlay tint matrix to balance brightness and maximize typography readability */
    opacity: 0.18; 
    z-index: -1;
}

.hero h1 {
    font-size: 3.8rem;
    margin-bottom: 1.5rem;
    text-shadow: 0 4px 12px rgba(0,0,0,0.5);
    max-width: 900px;
    line-height: 1.2;
    font-weight: 800;
}

.hero p {
    font-size: 1.35rem;
    margin-bottom: 2.5rem;
    max-width: 750px;
    text-shadow: 0 2px 6px rgba(0,0,0,0.4);
    color: var(--text-muted);
    line-height: 1.5;
}

/* Action Buttons */
.cta-buttons {
    display: flex;
    gap: 1.5rem;
    margin-top: 1rem;
    z-index: 2;
}

.btn {
    padding: 1rem 2.5rem;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(0,0,0,0.2);
}

.btn-primary {
    background: #fff;
    color: var(--primary);
}

.btn-secondary {
    background: transparent;
    color: #fff;
    border: 2px solid #fff;
}

.btn:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 22px rgba(0,0,0,0.3);
}

.btn-primary:hover {
    background: var(--light);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* About Section */
.about-section {
    padding: 5rem 2rem;
    background: rgba(15, 23, 42, 0.4);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    text-align: center;
}

.about-container {
    max-width: 900px;
    margin: 0 auto;
}

.about-section h2 {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.about-section h2::after {
    content: '';
    width: 60px;
    height: 4px;
    background: var(--accent);
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    border-radius: 2px;
}

.about-section p {
    font-size: 1.2rem;
    line-height: 1.8;
    color: var(--text-muted);
    margin-top: 1.5rem;
}

/* Features Section */
.features {
    padding: 5rem 2rem;
    background: rgba(15, 23, 42, 0.2);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    text-align: center;
}

.features h2 {
    font-size: 2.5rem;
    margin-bottom: 3.5rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

.feature-card {
    background: rgba(255, 255, 255, 0.06);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: 16px;
    padding: 2.5rem 2rem;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.feature-card:hover {
    transform: translateY(-10px);
    background: rgba(255, 255, 255, 0.12);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 12px 30px rgba(0,0,0,0.2);
}

.feature-icon {
    font-size: 2.8rem;
    margin-bottom: 1.5rem;
    color: #fff;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 600;
}

.feature-card p {
    color: var(--text-muted);
    line-height: 1.6;
    font-size: 1.05rem;
}

/* Footer */
.footer {
    padding: 2.5rem 2rem;
    text-align: center;
    background: rgba(2, 6, 23, 0.7);
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    margin-top: auto;
}

.footer p {
    margin-bottom: 0.5rem;
    font-size: 1.1rem;
}

.copyright {
    font-size: 0.9rem;
    opacity: 0.6;
}

/* Decorative Vector Elements */
.circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.03);
    pointer-events: none;
    z-index: 0;
}

.circle-1 { width: 400px; height: 400px; top: -10%; left: -5%; }
.circle-2 { width: 300px; height: 300px; bottom: 15%; right: -5%; }

/* Responsive UI Optimization Engine */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.6rem; }
    .hero p { font-size: 1.15rem; }
    .cta-buttons { flex-direction: column; width: 100%; max-width: 320px; gap: 1rem; }
    .header { flex-direction: column; gap: 1.2rem; text-align: center; }
    .nav-links { width: 100%; justify-content: center; flex-wrap: wrap; }
    .circle { display: none; }
    .about-section h2, .features h2 { font-size: 2rem; }
}


.logo {
    display: flex;
    align-items: center;
}

.landing-img {
    height: 45px;      /* Restricts the vertical blowout */
    width: auto;        /* Keeps the logo aspect ratio perfect */
    display: block;
    object-fit: contain;
}