/* ============================
   PITIAS — Header / Navegación
   Glassmorphism nav, logo,
   menú hamburguesa
   ============================ */

/* ── Header Principal ── */

.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: var(--header-height);
    background: var(--glass-bg-dark);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-bottom: var(--glass-border);
    z-index: var(--z-sticky);
    transition: box-shadow var(--transition-base);
}

.header.is-scrolled {
    box-shadow: var(--shadow-md);
}

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

/* ── Logo ── */

.header-logo {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    text-decoration: none;
    flex-shrink: 0;
}

.header-logo img {
    height: 44px;
    width: auto;
}

/* ── Navegación ── */

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

.nav-list {
    display: flex;
    align-items: center;
    gap: var(--space-lg);
    list-style: none;
    padding: 0;
    margin: 0;
}

.nav-link {
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    color: var(--color-negro-texto);
    text-decoration: none;
    padding: var(--space-xs) 0;
    position: relative;
    transition: color var(--transition-base);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-violeta);
    transition: width var(--transition-base);
}

.nav-link:hover,
.nav-link.is-active {
    color: var(--color-violeta);
}

.nav-link:hover::after,
.nav-link.is-active::after {
    width: 100%;
}

.nav-link:focus-visible {
    outline: 2px solid var(--color-violeta);
    outline-offset: 4px;
    border-radius: var(--radius-sm);
}

/* ── Botón de Sesión / Avatar ── */

.header-auth {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.btn-login {
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    padding: var(--space-xs) var(--space-md);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--color-violeta);
    background: transparent;
    border: 1.5px solid var(--color-violeta);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-base);
}

.btn-login:hover {
    background: rgba(91, 45, 160, 0.08);
}

.btn-login img {
    width: 18px;
    height: 18px;
}

/* ── Menú de Usuario (dropdown) ── */

.user-menu {
    position: relative;
    display: flex;
    align-items: center;
}

.user-menu.is-hidden {
    display: none;
}

.user-menu-btn {
    background: none;
    border: 2px solid transparent;
    cursor: pointer;
    padding: 2px;
    border-radius: var(--radius-full);
    transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.user-menu-btn:hover {
    border-color: var(--color-violeta);
    box-shadow: 0 0 0 3px rgba(91, 45, 160, 0.15);
}

.user-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    object-fit: cover;
    display: block;
}

/* ── Dropdown Panel ── */

.user-dropdown {
    position: absolute;
    top: calc(100% + var(--space-sm));
    right: 0;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(212, 189, 229, 0.3);
    border-radius: var(--radius-lg);
    box-shadow: 0 12px 40px rgba(91, 45, 160, 0.15);
    min-width: 220px;
    padding: var(--space-sm) 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px) scale(0.97);
    transition: all 0.2s ease;
    z-index: var(--z-dropdown);
}

.user-dropdown.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

.user-dropdown-header {
    padding: var(--space-sm) var(--space-md) var(--space-xs);
}

.user-dropdown-name {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-bold);
    color: var(--color-negro-texto);
    margin: 0;
    line-height: 1.3;
}

.user-dropdown-email {
    font-size: var(--font-size-xs);
    color: rgba(26, 26, 30, 0.5);
    margin: 2px 0 0;
    line-height: 1.3;
}

.user-dropdown-divider {
    height: 1px;
    background: rgba(212, 189, 229, 0.3);
    margin: var(--space-xs) 0;
}

.user-dropdown-nav {
    display: flex;
    flex-direction: column;
}

.user-dropdown-link {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-md);
    font-family: var(--font-family);
    font-size: var(--font-size-sm);
    color: var(--color-negro-texto);
    text-decoration: none;
    background: none;
    border: none;
    width: 100%;
    text-align: left;
    cursor: pointer;
    transition: background var(--transition-fast);
}

.user-dropdown-link:hover {
    background: rgba(212, 189, 229, 0.15);
}

.user-dropdown-link svg {
    flex-shrink: 0;
    color: var(--color-violeta);
    opacity: 0.7;
}

.user-dropdown-signout {
    color: #b91c1c;
}

.user-dropdown-signout svg {
    color: #b91c1c;
    opacity: 0.8;
}

.user-dropdown-signout:hover {
    background: rgba(185, 28, 28, 0.06);
}

/* ── Auth Prompt Overlay ── */

.auth-prompt-overlay {
    position: fixed;
    inset: 0;
    background: rgba(26, 26, 30, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.auth-prompt-overlay.is-visible {
    opacity: 1;
}

.auth-prompt-card {
    position: relative;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(212, 189, 229, 0.3);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(91, 45, 160, 0.2);
    padding: var(--space-2xl) var(--space-xl);
    max-width: 400px;
    width: 90%;
    text-align: center;
    transform: scale(0.9) translateY(20px);
    transition: transform 0.3s ease;
}

.auth-prompt-overlay.is-visible .auth-prompt-card {
    transform: scale(1) translateY(0);
}

.auth-prompt-icon {
    color: var(--color-violeta);
    margin-bottom: var(--space-md);
}

.auth-prompt-title {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-negro-texto);
    margin-bottom: var(--space-sm);
}

.auth-prompt-text {
    font-size: var(--font-size-sm);
    color: rgba(26, 26, 30, 0.6);
    margin-bottom: var(--space-lg);
    line-height: var(--line-height-base);
}

.auth-prompt-btn {
    width: 100%;
    justify-content: center;
}

.auth-prompt-close {
    position: absolute;
    top: var(--space-md);
    right: var(--space-md);
    background: none;
    border: none;
    color: rgba(26, 26, 30, 0.4);
    cursor: pointer;
    padding: var(--space-2xs);
    border-radius: var(--radius-sm);
    transition: color var(--transition-fast), background var(--transition-fast);
}

.auth-prompt-close:hover {
    color: var(--color-negro-texto);
    background: rgba(212, 189, 229, 0.2);
}

/* ── Menú Hamburguesa (Móvil) ── */

.hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 28px;
    height: 28px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: calc(var(--z-overlay) + 1);
}

.hamburger-line {
    width: 100%;
    height: 2px;
    background: var(--color-negro-texto);
    border-radius: var(--radius-full);
    transition: all var(--transition-base);
    transform-origin: center;
}

.hamburger.is-active .hamburger-line:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.is-active .hamburger-line:nth-child(2) {
    opacity: 0;
}

.hamburger.is-active .hamburger-line:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

/* ── Panel Móvil ── */

.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--gradiente-etereo);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    box-shadow: -4px 0 24px rgba(0, 0, 0, 0.1);
    padding: calc(var(--header-height) + var(--space-xl)) var(--space-xl) var(--space-xl);
    z-index: var(--z-overlay);
    transition: right var(--transition-base);
}

.mobile-menu.is-open {
    right: 0;
}

.mobile-menu .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
}

.mobile-menu .nav-link {
    display: block;
    width: 100%;
    padding: var(--space-md) 0;
    font-size: var(--font-size-md);
    border-bottom: 1px solid rgba(212, 189, 229, 0.3);
}

.mobile-menu-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(26, 26, 30, 0.4);
    z-index: calc(var(--z-overlay) - 1);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.mobile-menu-overlay.is-visible {
    opacity: 1;
}

/* ── Spacer para contenido bajo header fijo ── */

.header-spacer {
    height: var(--header-height);
}