/* ============================================================
   layout.css — Structural elements: nav, footer, main spacing
   ============================================================ */

/* --- Main -------------------------------------------------- */
main {
    padding-top: var(--nav-h);
}

/* --- Navigation -------------------------------------------- */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 1px 16px rgba(25, 28, 29, 0.06);
}

/* Public marketing header: glass over the page surface, not over white */
.nav--public {
    background: rgba(248, 249, 250, 0.82);
    backdrop-filter: saturate(140%) blur(14px);
    -webkit-backdrop-filter: saturate(140%) blur(14px);
    box-shadow: 0 1px 24px rgba(25, 28, 29, 0.05);
}

.nav__inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 2rem;
    height: var(--nav-h);
    max-width: var(--max-w);
    margin: 0 auto;
}

/* Public marketing header follows the 1200px content column */
.nav--public .nav__inner { max-width: 1200px; }

.nav__brand-group {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav__logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: 'Manrope', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--c-primary);
    text-decoration: none;
}

/* Wordmark logo — public header and app nav */
.nav__logo-img {
    display: block;
    max-height: 28px;
    width: auto;
}

.nav__links {
    display: none;
    gap: 1.5rem;
    align-items: center;
    list-style: none;
}

.nav__link {
    font-family: 'Manrope', sans-serif;
    font-size: 0.9375rem;
    font-weight: 500;
    letter-spacing: -0.01em;
    color: var(--c-on-surface-var);
    text-decoration: none;
    transition: color 0.2s;
}
.nav__link:hover      { color: var(--c-primary); }
/* No underline rule — the active item is carried by colour and weight */
.nav__link--active {
    color: var(--c-primary);
    font-weight: 700;
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* Hamburger button */
.nav__burger {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 2rem;
    height: 2rem;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
}
.nav__burger span {
    display: block;
    height: 2px;
    background: var(--c-on-surface-var);
    border-radius: 2px;
    transition: transform 0.25s, opacity 0.25s;
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px)  rotate(45deg);  }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile drawer */
.nav__mobile {
    display: none;
    flex-direction: column;
    background: var(--c-surface-lowest);
    padding: 1.25rem 2rem 1.5rem;
    gap: 0.25rem;
    box-shadow: 0 12px 24px -16px rgba(25, 28, 29, 0.18);
}
.nav__mobile.is-open { display: flex; }

.nav__mobile-link {
    font-family: 'Manrope', sans-serif;
    font-size: 1rem;
    font-weight: 500;
    color: var(--c-on-surface-var);
    text-decoration: none;
    padding: 0.75rem 0;
    transition: color 0.2s;
}
.nav__mobile-link:hover      { color: var(--c-primary); }
.nav__mobile-link--active    { color: var(--c-primary); font-weight: 700; }

/* Below the desktop breakpoint the login slot lives in the drawer instead */
@media (max-width: 767px) {
    .nav--public .nav__inner  { padding: 0 1.25rem; gap: 0.75rem; }
    .nav--public .nav__login  { display: none; }
    .nav--public .nav__logo-img { max-width: 8.75rem; }
    .nav--public .nav__actions  { gap: 0.625rem; }
}

@media (min-width: 768px) {
    .nav__links    { display: flex; }
    .nav__burger   { display: none;  }
}

/* --- Footer ------------------------------------------------ */
.footer {
    background: var(--c-surface-low);
    padding: 2.875rem 0;
}

.footer__inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 1.5rem;
}

.footer__brand {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer__logo {
    display: block;
    max-height: 30px;
    width: auto;
}

.footer__copy {
    font-size: 0.8125rem;
    color: var(--c-outline);
    max-width: 26rem;
    line-height: 1.6;
    margin: 0;
}

.footer__links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.625rem;
}

.footer__link {
    font-size: 0.875rem;
    color: var(--c-on-surface-var);
    text-decoration: none;
    transition: color 0.15s;
}
.footer__link:hover { color: var(--c-accent-strong); }