/* Reset / Normalize */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    -webkit-text-size-adjust: 100%;
    -moz-text-size-adjust: 100%;
    text-size-adjust: 100%;
}

body {
    font-family: var(--font-sans);
    background: var(--cream);
    color: var(--ink);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

img, svg {
    display: block;
    max-width: 100%;
}

a {
    color: var(--green);
    text-decoration: none;
    transition: color 0.15s ease;
}

a:hover {
    color: var(--green-dark);
}

ul, ol {
    list-style: none;
}

/* Container */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Site Header */
.site-header {
    background: var(--green);
    color: var(--white);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-md) var(--space-lg);
}

.logo {
    color: var(--white);
    font-weight: 700;
    font-size: 1.25rem;
    text-decoration: none;
    letter-spacing: -0.02em;
}

.logo:hover {
    color: var(--white);
}

.main-nav {
    display: flex;
    gap: var(--space-lg);
    align-items: center;
}

.main-nav a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.15s ease;
}

.main-nav a:hover,
.main-nav a.active {
    color: var(--white);
}

.nav-auth {
    display: flex;
    gap: var(--space-md);
    align-items: center;
}

.nav-auth a {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.15s ease;
}

.nav-auth a:hover {
    color: var(--white);
}

.nav-auth .nav-user {
    color: var(--white);
    font-weight: 600;
    font-size: 0.95rem;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--white);
    font-size: 1.5rem;
    cursor: pointer;
    padding: var(--space-xs);
    line-height: 1;
}

/* Page Hero */
.page-hero {
    background: var(--green);
    color: var(--white);
    padding: var(--space-xl) 0 var(--space-3xl);
}

.page-hero .container {
    max-width: var(--max-width);
}

/* Main content */
main {
    min-height: calc(100vh - 64px - 200px);
}

/* Site Footer */
.site-footer {
    background: var(--ink);
    color: var(--muted);
    padding: var(--space-xl) 0;
    margin-top: var(--space-3xl);
}

.footer-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: var(--space-md);
}

.footer-links {
    display: flex;
    gap: var(--space-lg);
}

.footer-links a {
    color: var(--muted);
    font-size: 0.9rem;
    text-decoration: none;
    transition: color 0.15s ease;
}

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

.footer-disclaimer {
    font-size: 0.8rem;
    color: var(--muted);
    font-style: italic;
    max-width: var(--max-width);
    margin: var(--space-md) auto 0;
    padding: 0 var(--space-lg);
    text-align: center;
}

.footer-copy {
    font-size: 0.85rem;
}

/* Grid helpers */
.grid-2, .grid-3, .grid-4 {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

/* Page title */
.page-title {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: var(--space-lg);
    color: var(--ink);
    letter-spacing: -0.02em;
}

/* Responsive */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .menu-toggle {
        display: block;
    }

    .main-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--green-dark);
        flex-direction: column;
        padding: var(--space-md) var(--space-lg);
        gap: var(--space-sm);
        box-shadow: var(--shadow-lg);
    }

    .main-nav.open {
        display: flex;
    }

    .main-nav a {
        padding: var(--space-sm) 0;
        display: block;
    }

    .nav-auth {
        display: none;
    }

    .main-nav.open ~ .nav-auth,
    .nav-auth.open {
        display: flex;
    }

    .header-inner {
        flex-wrap: wrap;
    }

    .grid-2, .grid-3, .grid-4 {
        grid-template-columns: 1fr;
    }

    .page-hero {
        padding: var(--space-lg) 0 var(--space-2xl);
    }

    .container {
        padding: 0 var(--space-md);
    }

    .footer-inner {
        flex-direction: column;
        text-align: center;
    }

    .page-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .header-inner {
        padding: var(--space-sm) var(--space-md);
    }
}