/* =========================================================
   layout.css — nav, footer, page shells
   ========================================================= */

/* ---------- NAV ---------- */
.nav-wrapper {
    position: fixed;
    top: 24px;
    inset-inline: 0;
    display: flex;
    justify-content: center;
    z-index: 1000;
    padding: 0 clamp(16px, 4vw, 32px);
    pointer-events: none;
}

.nav-wrapper > * { pointer-events: auto; }

.site-nav {
    background: var(--nav-bg);
    backdrop-filter: blur(16px) saturate(1.2);
    -webkit-backdrop-filter: blur(16px) saturate(1.2);
    border: 1px solid var(--border);
    border-radius: var(--radius-pill);
    display: flex;
    align-items: center;
    gap: 20px;
    padding: 12px 12px 12px 32px;
    width: 100%;
    max-width: 1320px;
    box-shadow: var(--card-shadow);
    transition: background var(--t-med) var(--ease), border-color var(--t-med) var(--ease);
}

html[dir="rtl"] .site-nav {
    padding: 12px 32px 12px 12px;
}

.site-nav.scrolled {
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
}

.logo {
    font-family: var(--font-head);
    font-size: 1.5rem;
    font-weight: 900;
    color: var(--text);
    letter-spacing: -0.04em;
    flex-shrink: 0;
}

.logo span {
    color: var(--chartreuse);
    font-size: 2rem;
    line-height: 0;
}

.nav-links {
    display: flex;
    gap: clamp(20px, 2.5vw, 36px);
    margin-inline-start: auto;
}

.nav-links a {
    font-family: var(--font-body);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--text);
    text-transform: uppercase;
    letter-spacing: 1.2px;
    position: relative;
    padding: 8px 0;
}

html[lang="ar"] .nav-links a {
    letter-spacing: 0;
    font-size: 0.95rem;
    text-transform: none;
}

.nav-links a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    bottom: 0;
    inset-inline-start: 0;
    background-color: var(--chartreuse);
    transition: width var(--t-med) var(--ease);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 10px;
}

.theme-toggle,
.lang-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    border: 1px solid var(--border);
    color: var(--text);
    background: transparent;
    transition: all var(--t-fast) var(--ease);
    font-size: 0.75rem;
    font-weight: 700;
    letter-spacing: 0.5px;
}

.theme-toggle:hover,
.lang-toggle:hover {
    background: var(--chartreuse);
    color: var(--black);
    border-color: var(--chartreuse);
    transform: translateY(-1px);
}

.theme-toggle .icon-sun,
.theme-toggle .icon-moon {
    display: none;
}

html[data-theme="light"] .theme-toggle .icon-moon { display: block; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }

.nav-portal {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text);
    transition: all var(--t-fast) var(--ease);
}

html[lang="ar"] .nav-portal {
    text-transform: none;
    font-size: 0.85rem;
    letter-spacing: 0;
}

.nav-portal:hover {
    border-color: var(--chartreuse);
    color: var(--chartreuse);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    border-radius: 50%;
    align-items: center;
    justify-content: center;
    margin-inline-start: auto;
}

.nav-toggle span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text);
    transition: all var(--t-fast) var(--ease);
}

/* Mobile nav */
@media (max-width: 1100px) {
    .nav-links .long { display: none; }
    .nav-portal span { display: none; }
    .nav-portal { padding: 10px; }
}

@media (max-width: 960px) {
    .nav-toggle { display: flex; }
    .nav-links {
        position: fixed;
        top: calc(var(--nav-h) + 40px);
        inset-inline: 5%;
        background: var(--bg);
        border: 1px solid var(--border);
        border-radius: var(--radius-md);
        flex-direction: column;
        padding: 24px;
        gap: 16px;
        box-shadow: 0 30px 80px rgba(0, 0, 0, 0.15);
        opacity: 0;
        pointer-events: none;
        transform: translateY(-10px);
        transition: all var(--t-med) var(--ease);
    }
    .nav-links.open {
        opacity: 1;
        pointer-events: auto;
        transform: translateY(0);
    }
    .nav-links a {
        font-size: 1rem;
        padding: 8px;
    }
    .nav-actions { margin-inline-start: auto; }
    .btn-sm { display: none; }
    .site-nav { padding: 12px 16px 12px 24px; }
    html[dir="rtl"] .site-nav { padding: 12px 24px 12px 16px; }
}

@media (max-width: 640px) {
    .nav-wrapper { top: 16px; }
    .lang-toggle, .nav-portal { display: none; }
}

/* ---------- FOOTER ---------- */
.site-footer {
    background: var(--bg-dark);
    color: var(--white);
    padding: 100px 0 40px;
    margin-top: 80px;
}

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

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.2fr;
    gap: 60px;
    margin-bottom: 80px;
}

.footer-brand { max-width: 360px; }
.footer-brand p {
    color: var(--cloud);
    margin: 20px 0 32px;
    font-size: 0.95rem;
    line-height: 1.7;
}

.footer-socials {
    display: flex;
    gap: 12px;
}

.footer-socials a {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--white);
    transition: all var(--t-fast) var(--ease);
}

.footer-socials a:hover {
    background: var(--chartreuse);
    color: var(--black);
    border-color: var(--chartreuse);
    transform: translateY(-2px);
}

.footer-col h4 {
    color: var(--white);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    margin-bottom: 24px;
    font-weight: 700;
}

html[lang="ar"] .footer-col h4 {
    text-transform: none;
    letter-spacing: 0;
    font-size: 1rem;
}

.footer-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    color: var(--cloud);
    font-size: 0.9rem;
    transition: color var(--t-fast) var(--ease);
}

.footer-col a:hover { color: var(--chartreuse); }
.footer-col li { color: var(--cloud); font-size: 0.9rem; }

.footer-bottom {
    padding-top: 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
    color: var(--cloud);
    font-size: 0.85rem;
}

.footer-legal {
    display: flex;
    gap: 24px;
}

.footer-legal a { color: var(--cloud); }
.footer-legal a:hover { color: var(--chartreuse); }

@media (max-width: 900px) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    .footer-brand { grid-column: 1 / -1; max-width: none; }
}

@media (max-width: 560px) {
    .footer-grid { grid-template-columns: 1fr; }
    .footer-bottom { flex-direction: column; text-align: center; }
}