/* ==========================================================================
   ZETA COMPONENTS — Navbar, Buttons, Dropdowns, Alerts, Footer
   ========================================================================== */

/* ===== Admin Bar ===== */
.zeta-admin-bar {
    background: var(--zeta-admin-bg);
    color: #c9c9c9;
    font-size: 0.8rem;
    border-bottom: 1px solid rgba(255,255,255,0.06);
}

.zeta-admin-bar-inner {
    max-width: var(--zeta-max-width);
    margin: 0 auto;
    padding: 0.5rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.zeta-admin-link {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: #c9c9c9;
    transition: var(--zeta-transition);
}

.zeta-admin-link:hover { color: #ffffff; }

.zeta-admin-badge {
    background: var(--zeta-primary);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 0.2rem 0.6rem;
    border-radius: var(--zeta-radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===== Navbar ===== */
.zeta-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--zeta-nav-bg);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--zeta-border);
}

.zeta-nav {
    max-width: var(--zeta-max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.zeta-nav-row {
    height: var(--zeta-header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.zeta-logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    font-weight: 800;
    font-size: 1.2rem;
    letter-spacing: -0.02em;
    transition: var(--zeta-transition);
}

.zeta-logo:hover { opacity: 0.85; }

.zeta-logo-mark {
    width: 36px;
    height: 36px;
    border-radius: var(--zeta-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 800;
    font-size: 1.05rem;
    box-shadow: var(--zeta-shadow-sm);
    flex-shrink: 0;
}

.zeta-logo-mark img {
    border-radius: var(--zeta-radius);
}
.zeta-nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.zeta-nav-link {
    position: relative;
    font-weight: 500;
    font-size: 0.93rem;
    color: var(--zeta-text-soft);
    padding: 0.4rem 0;
    transition: var(--zeta-transition);
}

.zeta-nav-link::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -3px;
    width: 0;
    height: 2px;
    border-radius: 2px;
    background: var(--zeta-primary);
    transition: width 0.25s var(--zeta-ease);
}

.zeta-nav-link:hover { color: var(--zeta-text); }
.zeta-nav-link:hover::after,
.zeta-nav-link.zeta-active::after { width: 100%; }
.zeta-nav-link.zeta-active { color: var(--zeta-primary); }

.zeta-nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

/* ===== Theme Toggle ===== */
.zeta-theme-toggle {
    width: 42px;
    height: 42px;
    border-radius: var(--zeta-radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--zeta-surface);
    border: 1px solid var(--zeta-border);
    color: var(--zeta-text);
    transition: var(--zeta-transition);
    font-size: 1.1rem;
    flex-shrink: 0;
}

.zeta-theme-toggle:hover {
    background: var(--zeta-primary-soft);
    border-color: var(--zeta-primary);
    transform: rotate(180deg);
}

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

[data-zeta-theme="dark"] .zeta-theme-toggle .zeta-icon-sun { display: block; }
[data-zeta-theme="dark"] .zeta-theme-toggle .zeta-icon-moon { display: none; }

/* ===== Buttons ===== */
.zeta-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    font-size: 0.88rem;
    padding: 0.62rem 1.3rem;
    border-radius: var(--zeta-radius);
    transition: var(--zeta-transition);
    cursor: pointer;
    white-space: nowrap;
    border: 1.5px solid transparent;
}

.zeta-btn-primary {
    background: var(--zeta-primary);
    color: #ffffff;
    box-shadow: var(--zeta-shadow-sm);
}

.zeta-btn-primary:hover {
    background: var(--zeta-primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--zeta-shadow);
}

.zeta-btn-outline {
    background: transparent;
    color: var(--zeta-text);
    border-color: var(--zeta-border);
}

.zeta-btn-outline:hover {
    border-color: var(--zeta-primary);
    color: var(--zeta-primary);
}

.zeta-btn-sm { padding: 0.4rem 0.9rem; font-size: 0.8rem; }
.zeta-btn-block { width: 100%; }

/* ===== Dropdown ===== */
.zeta-dropdown {
    position: relative;
}

.zeta-dropdown-menu {
    position: absolute;
    top: calc(100% + 0.75rem);
    right: 0;
    min-width: 230px;
    background: var(--zeta-bg-elevated);
    border-radius: var(--zeta-radius);
    box-shadow: var(--zeta-shadow-lg);
    border: 1px solid var(--zeta-border);
    padding: 0.5rem;
    opacity: 0;
    visibility: hidden;
    transform: translateY(8px);
    transition: var(--zeta-transition);
    z-index: 110;
}

.zeta-dropdown.zeta-open .zeta-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.zeta-dropdown-item {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.6rem 0.75rem;
    border-radius: var(--zeta-radius-sm);
    font-size: 0.87rem;
    color: var(--zeta-text-soft);
    transition: var(--zeta-transition);
}

.zeta-dropdown-item:hover {
    background: var(--zeta-surface);
    color: var(--zeta-primary);
}

.zeta-dropdown-divider {
    height: 1px;
    background: var(--zeta-border);
    margin: 0.4rem 0;
}

/* ===== Mobile Menu ===== */
.zeta-hamburger {
    display: none;
    width: 26px;
    height: 20px;
    position: relative;
    cursor: pointer;
    flex-shrink: 0;
}

.zeta-hamburger span {
    display: block;
    position: absolute;
    height: 2px;
    width: 100%;
    background: var(--zeta-text);
    border-radius: 2px;
    transition: var(--zeta-transition);
}

.zeta-hamburger span:nth-child(1) { top: 0; }
.zeta-hamburger span:nth-child(2) { top: 9px; }
.zeta-hamburger span:nth-child(3) { top: 18px; }

.zeta-hamburger.zeta-open span:nth-child(1) { transform: rotate(45deg); top: 9px; }
.zeta-hamburger.zeta-open span:nth-child(2) { opacity: 0; }
.zeta-hamburger.zeta-open span:nth-child(3) { transform: rotate(-45deg); top: 9px; }

.zeta-mobile-menu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s var(--zeta-ease);
}

.zeta-mobile-menu.zeta-open {
    max-height: 600px;
}

.zeta-mobile-menu-inner {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.5rem 0 1.5rem;
    border-top: 1px solid var(--zeta-border);
    margin-top: 0.5rem;
}

.zeta-mobile-menu .zeta-nav-link {
    padding: 0.65rem 0;
}

.zeta-mobile-divider {
    height: 1px;
    background: var(--zeta-border);
    margin: 0.5rem 0;
}

@media (max-width: 860px) {
    .zeta-nav-links, .zeta-nav-actions-desktop { display: none; }
    .zeta-hamburger { display: block; }
}

@media (min-width: 861px) {
    .zeta-mobile-menu { display: none; }
}

/* ===== Alerts ===== */
.zeta-alerts-wrap {
    max-width: var(--zeta-max-width);
    margin: 0 auto;
    padding: 1.5rem 1.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.zeta-alert {
    border-radius: var(--zeta-radius);
    padding: 0.9rem 1.2rem;
    font-size: 0.88rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    box-shadow: var(--zeta-shadow-sm);
    border: 1px solid;
    animation: zetaSlideDown 0.3s var(--zeta-ease);
}

.zeta-alert-close {
    opacity: 0.55;
    font-weight: 700;
    transition: var(--zeta-transition);
}

.zeta-alert-close:hover { opacity: 1; }

.zeta-alert-success { background: var(--zeta-success-bg); color: var(--zeta-success); border-color: var(--zeta-success-border); }
.zeta-alert-error   { background: var(--zeta-danger-bg); color: var(--zeta-danger); border-color: var(--zeta-danger-border); }
.zeta-alert-info    { background: var(--zeta-info-bg); color: var(--zeta-info); border-color: var(--zeta-info-border); }
.zeta-alert-warning { background: var(--zeta-warning-bg); color: var(--zeta-warning); border-color: var(--zeta-warning-border); }

/* ===== Footer ===== */
.zeta-footer {
    background: var(--zeta-bg-soft);
    border-top: 1px solid var(--zeta-border);
    margin-top: auto;
}

.zeta-footer-grid {
    max-width: var(--zeta-max-width);
    margin: 0 auto;
    padding: 4rem 1.5rem;
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 2.5rem;
}

.zeta-footer-heading {
    font-weight: 700;
    font-size: 0.9rem;
    margin-bottom: 1rem;
    color: var(--zeta-text);
}

.zeta-footer-links {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
}

.zeta-footer-links a {
    color: var(--zeta-text-soft);
    font-size: 0.87rem;
    transition: var(--zeta-transition);
}

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

.zeta-footer-bottom {
    border-top: 1px solid var(--zeta-border);
    text-align: center;
    padding: 1.25rem;
    font-size: 0.78rem;
    color: var(--zeta-text-muted);
}

@media (max-width: 768px) {
    .zeta-footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
    .zeta-footer-grid { grid-template-columns: 1fr; }
}