:root {
    /* Integrated IROBROO Premium Brand Portfolio */
    --primary-color: #003057;
    /* IROBROO Navy */
    --primary-light: #004a85;
    --accent-color: #f9be00;
    /* IROBROO Gold */
    --accent-glow: rgba(249, 190, 0, 0.1);
    --secondary-color: #0066FF;
    /* Complementary Tech Blue */

    --text-main: #1D2939;
    /* Deep gray for readability */
    --text-muted: #667085;
    /* Soft gray for metadata */
    --text-light: #98A2B3;

    --bg-white: #FFFFFF;
    --bg-soft: #F9FAFB;
    --bg-ice: #F2F4F7;

    --border-color: #EAECF0;
    --border-radius-sm: 8px;
    --border-radius-md: 12px;
    --border-radius-lg: 24px;

    --shadow-sm: 0px 1px 2px rgba(16, 24, 40, 0.05);
    --shadow-md: 0px 4px 12px -2px rgba(16, 24, 40, 0.06), 0px 12px 16px -4px rgba(16, 24, 40, 0.08);
    --shadow-lg: 0px 20px 24px -4px rgba(16, 24, 40, 0.08), 0px 8px 8px -4px rgba(16, 24, 40, 0.03);

    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Offset for fixed navbar */
main,
.main-content {
    padding-top: 80px;
}

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

body {
    font-family: 'Inter', 'Prompt', sans-serif;
    color: var(--text-main);
    background-color: var(--bg-white);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    text-rendering: optimizeLegibility;
}

a {
    text-decoration: none !important;
}

h1,
h2,
h3,
h4 {
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--primary-color);
}

/* Container */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 40px;
}

/* Navbar - High End */
.navbar {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    height: 80px;
    display: flex;
    align-items: center;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 2000;
    border-bottom: 1px solid var(--border-color);
}

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

.nav-logo img {
    height: 32px;
    object-fit: contain;
}

.nav-logo h2 {
    font-size: 1.4rem;
    font-weight: 800;
    color: var(--primary-color);
}

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

.nav-links a {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    transition: var(--transition-smooth);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--accent-color);
}

/* Hero Section - Solid & Sharp */
.hero {
    padding: 160px 0 100px;
    background: var(--bg-soft);
    overflow: hidden;
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: 60px;
}

.hero-content h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--primary-color);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 40px;
    max-width: 600px;
}

.hero-visual {
    position: relative;
}

.visual-box {
    width: 100%;
    height: 500px;
    background: var(--bg-ice);
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
    position: relative;
    border: 1px solid var(--border-color);
}

.visual-box img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

/* Feature Cards - Floating Prism Style */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.feature-card {
    background: var(--bg-white);
    padding: 40px;
    border-radius: var(--border-radius-md);
    border: 1px solid var(--border-color);
    transition: var(--transition-smooth);
    position: relative;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: var(--accent-color);
}

.feature-card .icon-box {
    width: 56px;
    height: 56px;
    background: var(--bg-soft);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    color: var(--accent-color);
    font-size: 1.5rem;
}

/* Global Elements */
.btn {
    padding: 12px 28px;
    border-radius: var(--border-radius-sm);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    text-decoration: none !important;
}

.btn-primary {
    background: var(--accent-color);
    color: var(--primary-color);
    box-shadow: 0 4px 14px rgba(249, 190, 0, 0.3);
}

.btn-primary:hover {
    background: #e5af00;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(249, 190, 0, 0.4);
}

.btn-secondary {
    background: white;
    color: var(--primary-color);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover {
    background: var(--bg-soft);
    border-color: var(--text-muted);
}

/* Footer - Clean Deep */
footer {
    background: var(--primary-color);
    color: white;
    padding: 100px 0 40px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 80px;
    margin-bottom: 60px;
}

footer h3,
footer h4 {
    color: white;
    margin-bottom: 24px;
}

footer p {
    color: #98A2B3;
    font-size: 0.95rem;
}

.footer-bottom {
    border-top: 1px solid #1D2939;
    padding-top: 32px;
    display: flex;
    justify-content: space-between;
    color: #667085;
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 1024px) {
    .hero-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-content p {
        margin: 0 auto 40px;
    }

    .features-grid {
        grid-template-columns: 1fr 1fr;
    }

    .hero-content h1 {
        font-size: 3rem;
    }
}

@media (max-width: 768px) {
    .features-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        display: none;
    }

    .container {
        padding: 0 20px;
    }
}