/* Perseus CI - Corporate Styles */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --color-primary: #0f172a; /* Slate 900 */
    --color-secondary: #334155; /* Slate 700 */
    --color-accent: #0284c7; /* Sky 600 */
    --color-text: #1e293b; /* Slate 800 */
    --color-text-light: #64748b; /* Slate 500 */
    --color-bg: #ffffff;
    --color-bg-alt: #f8fafc; /* Slate 50 */
    --color-border: #e2e8f0;
    --font-main: 'Inter', sans-serif;
    --spacing-container: 1200px;
    --spacing-padding: 2rem;
}

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

body {
    font-family: var(--font-main);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-bg);
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    color: var(--color-primary);
    font-weight: 600;
    margin-bottom: 1rem;
    line-height: 1.2;
}

h1 { font-size: 2.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2rem; letter-spacing: -0.01em; }
h3 { font-size: 1.5rem; }

p { margin-bottom: 1rem; }
a { color: var(--color-accent); text-decoration: none; transition: 0.2s; }
a:hover { text-decoration: underline; }

/* Layout Utilities */
.container {
    max-width: var(--spacing-container);
    margin: 0 auto;
    padding: 0 var(--spacing-padding);
}

.section { padding: 4rem 0; }
.section-alt { background-color: var(--color-bg-alt); }

/* Header */
header {
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--color-primary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    text-decoration: none !important;
}

.nav-menu {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    color: var(--color-secondary);
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-link:hover { color: var(--color-accent); text-decoration: none; }

/* Mobile Menu Toggle */
.menu-toggle { display: none; background: none; border: none; font-size: 1.5rem; cursor: pointer; }

/* Hero */
.hero {
    padding: 6rem 0;
    background: linear-gradient(to right, #f8fafc 50%, #fff 50%);
}
.hero-content {
    max-width: 800px;
}
.hero h1 { margin-bottom: 1.5rem; }
.hero p { font-size: 1.125rem; color: var(--color-text-light); margin-bottom: 2rem; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 500;
    text-decoration: none !important;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-secondary); }

/* Grid */
.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.card {
    background: #fff;
    padding: 2rem;
    border: 1px solid var(--color-border);
    border-radius: 6px;
}
.card h3 { margin-bottom: 0.5rem; }
.card p { color: var(--color-text-light); margin-bottom: 0; }

/* Footer */
footer {
    background: var(--color-primary);
    color: #fff;
    padding: 4rem 0;
    margin-top: auto;
    font-size: 0.9rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 3rem;
    margin-bottom: 2rem;
}

.footer-col h4 { color: #fff; margin-bottom: 1.5rem; }
.footer-col p { color: #94a3b8; margin-bottom: 0.5rem; }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a { color: #cbd5e1; }
.footer-col a:hover { color: #fff; }

.footer-bottom {
    border-top: 1px solid #334155;
    padding-top: 2rem;
    text-align: center;
    color: #64748b;
}

/* Forms */
.form-group { margin-bottom: 1.5rem; }
.form-label { display: block; margin-bottom: 0.5rem; font-weight: 500; }
.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    font-family: inherit;
}
.form-control:focus { outline: 2px solid var(--color-accent); border-color: transparent; }

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: absolute;
        top: 80px;
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 2rem;
        border-bottom: 1px solid var(--color-border);
        text-align: center;
    }
    .nav-menu.active { display: flex; }
    .menu-toggle { display: block; }
    .hero { background: #f8fafc; text-align: center; }
    .hero-content { margin: 0 auto; }
}