:root {
    /* New Light Theme Palette */
    --primary-color: #0052cc;
    /* Professional Blue */
    --primary-hover: #0747a6;
    --secondary-color: #00b8d9;
    /* Cyan/Teal accent */
    --accent-color: #ffab00;
    /* Warm accent */
    --bg-color: #ffffff;
    --bg-secondary: #f4f5f7;
    --text-main: #172b4d;
    --text-muted: #5e6c84;
    --border-color: #dfe1e6;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --header-bg: rgba(255, 255, 255, 0.95);

    --font-heading: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

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

/* Typography */
h1,
h2,
h3 {
    font-family: var(--font-heading);
    color: var(--text-main);
    font-weight: 700;
    line-height: 1.25;
}

h1 {
    font-size: 3.5rem;
    letter-spacing: -0.01em;
}

h2 {
    font-size: 2.25rem;
    margin-bottom: 1rem;
}

h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color 0.2s ease;
}

/* Utility Classes */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

.btn {
    display: inline-block;
    padding: 12px 32px;
    border-radius: 6px;
    /* Squarer buttons */
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
    border: none;
    box-shadow: 0 2px 4px rgba(0, 82, 204, 0.2);
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 82, 204, 0.3);
}

/* Header */
header {
    background: var(--header-bg);
    backdrop-filter: blur(8px);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
    height: 72px;
    display: flex;
    align-items: center;
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

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

.nav-links a:hover {
    color: var(--primary-color);
}

/* Hero Section - Left Aligned */
.hero {
    min-height: 90vh;
    display: flex;
    align-items: center;
    padding-top: 72px;
    /* Header height */
    position: relative;
    background: linear-gradient(135deg, #fff 0%, #f0f4ff 100%);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr;
    align-items: center;
    text-align: left;
    /* Left align */
}

@media (min-width: 900px) {
    .hero .container {
        grid-template-columns: 1fr 1fr;
        gap: 60px;
    }
}

.hero-content {
    max-width: 600px;
    z-index: 10;
}

.hero h1 {
    margin-bottom: 1.5rem;
    color: var(--text-main);
}

.hero h1 span {
    color: var(--primary-color);
    background: none;
    -webkit-background-clip: unset;
    background-clip: unset;
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    font-weight: 400;
}

/* Decorative element for Hero right side (since we don't have an image requested) */
/* We can add a simple geometric shape or pattern */
.hero-visual {
    display: none;
}

@media (min-width: 900px) {
    .hero-visual {
        display: block;
        height: 400px;
        background: radial-gradient(circle, var(--secondary-color) 0%, transparent 70%);
        opacity: 0.1;
        border-radius: 50%;
    }
}


/* Features Section */
.features {
    padding: 100px 0;
    background: var(--bg-color);
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 60px;
}

.section-header h2 {
    color: var(--text-main);
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 32px;
}

.feature-card {
    background: white;
    padding: 40px 32px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    box-shadow: none;
    transition: all 0.3s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--card-shadow);
    border-color: var(--primary-color);
}

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 24px;
    background: var(--bg-secondary);
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
}

.feature-card h3 {
    margin-bottom: 12px;
    color: var(--text-main);
}

.feature-card p {
    color: var(--text-muted);
    font-size: 1rem;
    line-height: 1.6;
}

/* Contact Section */
.contact {
    padding: 100px 0;
    background: var(--bg-secondary);
    /* Light grey bg */
    text-align: center;
}

.contact .section-header {
    margin-bottom: 40px;
}

.contact-text {
    max-width: 600px;
    margin: 0 auto;
    font-size: 1.1rem;
    color: var(--text-muted);
}

.qr-container {
    background: white;
    padding: 16px;
    border-radius: 12px;
    display: inline-block;
    margin-top: 32px;
    box-shadow: var(--card-shadow);
}

.qr-container img {
    max-width: 200px;
    display: block;
}

/* Footer */
footer {
    padding: 40px 0;
    background: white;
    text-align: center;
    color: var(--text-muted);
    border-top: 1px solid var(--border-color);
}

footer a {
    color: var(--text-muted);
}

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


/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .hero h1 {
        font-size: 2.5rem;
    }

    .nav-links {
        display: none;
    }

    .logo {
        font-size: 1.4rem;
    }

    .hero {
        text-align: center;
    }

    .hero .container {
        text-align: center;
        grid-template-columns: 1fr;
    }
}