/* ================================================
   NAVEGACIÓN PÚBLICA — navegacion.css
   ================================================ */

.navbar {
    position: sticky;
    top: 0;
    z-index: var(--z-navbar); /* = 100, definido en main.css */
    background-color: var(--color-white);
    border-bottom: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-sm);
    /* CORRECCIÓN: isolation crea un stacking context propio,
       garantizando que el navbar quede siempre sobre el hero */
    isolation: isolate;
}

/* ─────────────────────────────────────────────
   LAYOUT:  [nav]  [spacer]  [right][logo]
   ───────────────────────────────────────────── */
.navbar__inner {
    display: flex;
    align-items: center;
    width: 100%;
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--container-padding);
    height: 72px;
}

.navbar__nav {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    flex: 0 0 auto;
}

.navbar__spacer {
    flex: 1 1 auto;
}

.navbar__end {
    display: flex;
    align-items: center;
    flex: 0 0 auto;
}

.navbar__right {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.navbar__logo {
    display: flex;
    align-items: center;
    flex-shrink: 0;
    margin-left: var(--space-5);
    padding-left: var(--space-5);
    border-left: 1px solid var(--color-border-light);
    text-decoration: none;
}

.navbar__logo img {
    height: 52px;
    width: auto;
}

/* ── Items y triggers izquierda ─────────────── */
.navbar__item { position: relative; }

.navbar__trigger {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    font-family: var(--font-primary);
    color: var(--color-navy);
    background: none;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    white-space: nowrap;
}

.navbar__trigger:hover {
    background-color: var(--color-primary-xlight);
    color: var(--color-primary-dark);
}

.navbar__chevron {
    font-size: 0.7rem;
    transition: transform var(--transition-fast);
}

.navbar__chevron--open { transform: rotate(180deg); }

/* ── Mega dropdown ──────────────────────────── */
.navbar__mega {
    position: absolute;
    top: calc(100% + var(--space-2));
    left: 0;
    min-width: 560px;
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-xl);
    /* CORRECCIÓN: usa --z-dropdown (200) que supera al --z-navbar (100) */
    z-index: var(--z-dropdown);
    animation: dropFadeIn 0.15s ease both;
}

.navbar__mega-inner {
    display: grid;
    grid-template-columns: 1fr 1fr;
    overflow: hidden;
    border-radius: var(--radius-xl);
}

.navbar__mega-panel {
    padding: var(--space-6);
    background: linear-gradient(160deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.navbar__mega-img {
    width: 100%;
    max-height: 140px;
    object-fit: contain;
    border-radius: var(--radius-lg);
}

.navbar__mega-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
    margin: 0;
}

.navbar__mega-desc {
    font-size: var(--font-size-xs);
    color: rgba(255,255,255,0.7);
    line-height: var(--line-height-relaxed);
    margin: 0;
}

.navbar__mega-links {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2);
    padding: var(--space-4);
    align-content: start;
}

.navbar__mega-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    border: 1px solid var(--color-border-light);
    text-decoration: none;
    color: var(--color-navy);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: all var(--transition-fast);
    background-color: var(--color-white);
}

.navbar__mega-link:hover {
    background-color: var(--color-primary-xlight);
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.navbar__mega-link-icon {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-md);
    background-color: var(--color-bg);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    overflow: hidden;
    font-size: var(--font-size-base);
    color: var(--color-primary);
}

.navbar__mega-link-icon img {
    width: 100%;
    height: 100%;
    object-fit: contain;
}

/* ── Auth (Estudiante / Docente) ────────────── */
.navbar__item--auth { position: relative; }

.navbar__auth-trigger {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-primary);
    color: var(--color-navy);
    background: none;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.navbar__auth-trigger:hover {
    border-color: var(--color-primary);
    color: var(--color-primary-dark);
    background-color: var(--color-primary-xlight);
}

.navbar__auth-dropdown {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    min-width: 200px;
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-xl);
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
    /* CORRECCIÓN: usa --z-dropdown (200) que supera al --z-navbar (100) */
    z-index: var(--z-dropdown);
    animation: dropFadeInRight 0.15s ease both;
}

/* ── Botones ────────────────────────────────── */
.btn-platform {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.6rem 1.25rem;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-primary);
    border-radius: var(--radius-full);
    border: none;
    cursor: pointer;
    text-decoration: none;
    box-shadow: var(--shadow-primary);
    transition: all var(--transition-normal);
    white-space: nowrap;
}

.btn-platform:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(242,146,36,0.45);
    color: var(--color-white);
}

.btn-platform--full { width: 100%; }

.btn-action {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: 0.6rem 1.25rem;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-primary);
    border-radius: var(--radius-full);
    border: 1.5px solid transparent;
    cursor: pointer;
    text-decoration: none;
    transition: all var(--transition-fast);
    white-space: nowrap;
    background: none;
}

.btn-action--navy { color: var(--color-navy); border-color: var(--color-navy); }
.btn-action--navy:hover { background-color: var(--color-navy); color: var(--color-white); }
.btn-action--full { width: 100%; }

/* ── Usuario autenticado ────────────────────── */
.navbar__item--user { position: relative; }

.navbar__user-trigger {
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1) var(--space-2);
    background: none;
    border: 1.5px solid var(--color-border-light);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-primary);
}

.navbar__user-trigger:hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-xlight);
}

.navbar__user-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    object-fit: cover;
}

.navbar__user-initials {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: var(--color-white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    flex-shrink: 0;
}

.navbar__user-initials--lg {
    width: 64px;
    height: 64px;
    font-size: var(--font-size-xl);
    margin: 0 auto;
}

.navbar__user-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-navy);
    max-width: 140px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.navbar__user-dropdown {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    min-width: 240px;
    background-color: var(--color-white);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
    /* CORRECCIÓN: usa --z-dropdown (200) que supera al --z-navbar (100) */
    z-index: var(--z-dropdown);
    animation: dropFadeInRight 0.15s ease both;
}

.navbar__user-header {
    padding: var(--space-5);
    background: linear-gradient(135deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
}

.navbar__user-header-avatar {
    width: 64px;
    height: 64px;
    border-radius: var(--radius-full);
    object-fit: cover;
    border: 3px solid rgba(255,255,255,0.3);
}

.navbar__user-fullname { font-size: var(--font-size-sm); font-weight: var(--font-weight-semibold); color: var(--color-white); margin: 0; }
.navbar__user-email { font-size: var(--font-size-xs); color: rgba(255,255,255,0.65); margin: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 200px; }
.navbar__user-role { display: inline-block; padding: 0.15rem 0.6rem; background-color: rgba(242,146,36,0.2); color: var(--color-primary); font-size: var(--font-size-xs); font-weight: var(--font-weight-semibold); border-radius: var(--radius-full); border: 1px solid rgba(242,146,36,0.3); }

.navbar__user-links { display: flex; flex-direction: column; padding: var(--space-2) 0; }

.navbar__user-link {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3) var(--space-5);
    font-size: var(--font-size-sm);
    color: var(--color-navy);
    text-decoration: none;
    transition: background-color var(--transition-fast), color var(--transition-fast);
    border: none;
    background: none;
    cursor: pointer;
    font-family: var(--font-primary);
    width: 100%;
    text-align: left;
}

.navbar__user-link:hover { background-color: var(--color-primary-xlight); color: var(--color-primary-dark); }
.navbar__user-link i { width: 16px; text-align: center; color: var(--color-primary); flex-shrink: 0; }
.navbar__user-link--danger { color: var(--color-error); }
.navbar__user-link--danger:hover { background-color: var(--color-error-light); color: var(--color-error); }
.navbar__user-link--danger i { color: var(--color-error); }
.navbar__user-divider { height: 1px; background-color: var(--color-border-light); margin: var(--space-1) 0; }

/* ── Hamburguesa ────────────────────────────── */
.navbar__hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: none;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    padding: var(--space-2);
    transition: border-color var(--transition-fast);
}

.navbar__hamburger:hover { border-color: var(--color-primary); }
.navbar__hamburger span { display: block; height: 2px; background-color: var(--color-navy); border-radius: 2px; transition: all var(--transition-fast); transform-origin: center; }
.navbar__hamburger--open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.navbar__hamburger--open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.navbar__hamburger--open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ── Mobile ─────────────────────────────────── */
.navbar__mobile {
    border-top: 1px solid var(--color-border-light);
    background-color: var(--color-white);
    padding: var(--space-4);          /* padding uniforme y contenido */
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    width: 100%;
    box-sizing: border-box;
}

.navbar__mobile-nav { display: flex; flex-direction: column; gap: var(--space-2); }

.navbar__mobile-group {
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--color-border-light);
    width: 100%;
}

.navbar__mobile-trigger {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    font-family: var(--font-primary);
    color: var(--color-navy);
    background-color: var(--color-bg);
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background-color var(--transition-fast);
}

.navbar__mobile-trigger:hover { background-color: var(--color-primary-xlight); }
.navbar__mobile-trigger i { font-size: 0.7rem; transition: transform var(--transition-fast); flex-shrink: 0; }
.navbar__mobile-sub { padding: var(--space-2) 0; background-color: var(--color-white); }
.navbar__mobile-link { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-3) var(--space-5); font-size: var(--font-size-sm); color: var(--color-text-secondary); text-decoration: none; transition: all var(--transition-fast); }
.navbar__mobile-link:hover { background-color: var(--color-primary-xlight); color: var(--color-primary-dark); padding-left: calc(var(--space-5) + 4px); }
.navbar__mobile-link--danger { color: var(--color-error); }
.navbar__mobile-link--danger:hover { background-color: var(--color-error-light); color: var(--color-error); }
.navbar__mobile-divider { height: 1px; background-color: var(--color-border-light); margin: var(--space-2) 0; }

/* Cards Estudiante / Docente — ancho completo */
.navbar__mobile-auth {
    background-color: var(--color-bg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    padding: var(--space-5) var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    width: 100%;
    box-sizing: border-box;
}

.navbar__mobile-auth-label {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-navy);
    margin: 0 0 var(--space-1);
    text-align: center;
}

/* Botones dentro de auth — ancho completo */
.navbar__mobile-auth .btn-platform,
.navbar__mobile-auth .btn-action {
    width: 100%;
    justify-content: center;
}

/* ── Animaciones ────────────────────────────── */
@keyframes dropFadeIn {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes dropFadeInRight {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ─────────────────────────────── */

/* Defaults: desktop muestra logo desktop, oculta logo mobile */
.navbar__logo--desktop { display: flex; }
.navbar__logo--mobile  { display: none; }

@media (max-width: 1024px) {
    .navbar__nav       { display: none; }
    .navbar__end       { display: none; }
    .navbar__spacer    { display: none; }
    .navbar__hamburger { display: flex; margin-left: auto; }

    /* En mobile: ocultar logo desktop, mostrar logo mobile a la izquierda */
    .navbar__logo--desktop { display: none; }
    .navbar__logo--mobile  {
        display: flex;
        align-items: center;
        margin-left: 0;
        padding-left: 0;
        border-left: none;
        flex-shrink: 0;
    }
}