/* === Layout System === */

/* Container */
.container {
    width: 100%;
    max-width: var(--wide-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
}

/* Navbar */
.navbar {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-nav);
    height: var(--nav-height);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar__inner {
    max-width: var(--wide-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo */
.navbar__logo {
    font-size: 1.375rem;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 1px;
}

.logo-buck {
    font-family: var(--font-display);
    font-weight: 700;
    color: var(--text-inverse);
}

.logo-talk {
    font-family: var(--font-body);
    font-weight: 700;
    color: var(--emerald);
}

/* Nav Links */
.navbar__links {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    list-style: none;
}

.navbar__links li a {
    display: block;
    padding: var(--space-sm) var(--space-md);
    color: #94A3B8;
    font-size: 0.875rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: color var(--transition), background var(--transition);
    text-decoration: none;
}

.navbar__links li a:hover,
.navbar__links li.active a {
    color: var(--text-inverse);
    background: rgba(255, 255, 255, 0.08);
}


/* Mobile Toggle */
.navbar__toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.hamburger,
.hamburger::before,
.hamburger::after {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-inverse);
    border-radius: 1px;
    transition: transform var(--transition);
}

.hamburger {
    position: relative;
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    left: 0;
}

.hamburger::before { top: -7px; }
.hamburger::after { top: 7px; }

/* Mobile open state */
.navbar__toggle[aria-expanded="true"] .hamburger { background: transparent; }
.navbar__toggle[aria-expanded="true"] .hamburger::before { top: 0; transform: rotate(45deg); }
.navbar__toggle[aria-expanded="true"] .hamburger::after { top: 0; transform: rotate(-45deg); }

/* Site Main */
.site-main {
    min-height: calc(100vh - var(--nav-height) - 200px);
}

/* Footer */
.site-footer {
    background: var(--bg-footer);
    color: #94A3B8;
    padding: var(--space-3xl) 0;
    margin-top: var(--space-4xl);
}

.footer__inner {
    max-width: var(--wide-width);
    margin: 0 auto;
    padding: 0 var(--space-lg);
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-xl);
    align-items: flex-start;
}

.footer__brand {
    flex: 1;
    min-width: 200px;
}

.footer__tagline {
    margin-top: var(--space-sm);
    font-size: 0.875rem;
    color: #64748B;
}

.footer__links ul {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.footer__links a {
    color: #94A3B8;
    font-size: 0.875rem;
    text-decoration: none;
}

.footer__links a:hover { color: var(--emerald); }

.footer__legal {
    width: 100%;
    padding-top: var(--space-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 0.75rem;
    color: #475569;
}

/* === Responsive === */
@media (max-width: 768px) {
    .navbar__links {
        position: fixed;
        top: var(--nav-height);
        left: 0;
        right: 0;
        background: var(--bg-nav);
        flex-direction: column;
        padding: var(--space-lg);
        gap: 0;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: transform 0.25s ease, opacity 0.25s ease;
    }

    .navbar__links.is-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .navbar__links li a {
        padding: var(--space-md);
        font-size: 1rem;
    }

    .navbar__toggle {
        display: block;
    }

    .footer__inner {
        flex-direction: column;
    }

    .footer__links ul {
        flex-wrap: wrap;
        gap: var(--space-md);
    }

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

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

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

@media (max-width: 640px) {
    .navbar__logo {
        font-size: 1.125rem;
    }

    .site-footer {
        padding: var(--space-2xl) 0;
        margin-top: var(--space-3xl);
    }
}