/* Default Avatar Icon Shadow - Enhanced 3D Effect */
#defaultAuthIcon {
    filter: drop-shadow(0 8px 16px rgba(0, 0, 0, 0.4)) drop-shadow(0 4px 8px rgba(0, 0, 0, 0.3));
    width: 32px !important;
    height: 32px !important;
    display: inline-flex !important;
    align-items: center !important;
    justify-content: center !important;
    cursor: pointer !important;
    color: rgba(255, 255, 255, 0.72) !important;
}

#defaultAuthIcon svg {
    width: 100% !important;
    height: 100% !important;
    display: block !important;
    cursor: pointer !important;
    fill: currentColor !important;
}

#defaultAuthIcon svg * {
    fill: currentColor !important;
    stroke: none !important;
}

#authBtn.logged-in #defaultAuthIcon,
.login-trigger-btn.logged-in #defaultAuthIcon,
#authBtn.logged-in .default-auth-icon,
.login-trigger-btn.logged-in .default-auth-icon {
    display: none !important;
    visibility: hidden !important;
    opacity: 0 !important;
    pointer-events: none !important;
    width: 0 !important;
    height: 0 !important;
    min-width: 0 !important;
    min-height: 0 !important;
    margin: 0 !important;
    padding: 0 !important;
    overflow: hidden !important;
}

.auth-display-none {
    display: none !important;
}

#navUserAvatar.show,
.nav-user-avatar.show,
.login-trigger-btn.logged-in #navUserAvatar.show,
.login-trigger-btn.logged-in .nav-user-avatar.show {
    display: inline-block !important;
    visibility: visible !important;
    opacity: 1 !important;
}

/* Keep the auth slot size stable so logout does not reflow the nav */
#auth-container {
    width: var(--nav-auth-slot-size, 44px) !important;
    min-width: var(--nav-auth-slot-size, 44px) !important;
    height: var(--nav-auth-slot-size, 44px) !important;
    min-height: var(--nav-auth-slot-size, 44px) !important;
    flex: 0 0 var(--nav-auth-slot-size, 44px) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
}

#auth-container>.login-trigger-btn,
#auth-container>#authBtn {
    width: var(--nav-auth-slot-size, 44px) !important;
    min-width: var(--nav-auth-slot-size, 44px) !important;
    height: var(--nav-auth-slot-size, 44px) !important;
    min-height: var(--nav-auth-slot-size, 44px) !important;
    padding: 0 !important;
    gap: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    flex: 0 0 var(--nav-auth-slot-size, 44px) !important;
    border-radius: 50% !important;
}

/* 确保未登录时按钮也是透明背景，无正方形色块 */
.login-trigger-btn,
button.login-trigger-btn,
#authBtn {
    background: transparent !important;
    background-color: transparent !important;
    border: none !important;
    box-shadow: none !important;
    outline: none !important;
    cursor: pointer !important;
    color: rgba(255, 255, 255, 0.92) !important;
}

/* Default icon hover - HIGHEST PRIORITY */
#defaultAuthIcon:hover,
.login-trigger-btn:hover #defaultAuthIcon {
    transform: scale(1.1) !important;
    filter: drop-shadow(0 0 0 3px rgba(255, 255, 255, 0.9)) drop-shadow(0 0 15px rgba(255, 255, 255, 0.7)) brightness(1.3) !important;
    transition: all 0.3s ease !important;
}

/* Ensure avatar maintains perfect circle - CRITICAL: High priority overrides */
.login-trigger-btn.logged-in,
button.login-trigger-btn.logged-in {
    padding: 0 !important;
    background: transparent !important;
    /* Remove background to prevent offset */
    background-color: transparent !important;
    border: none !important;
    /* Remove border that might show through */
    box-shadow: none !important;
    /* Remove any box shadow */
    width: var(--nav-auth-slot-size, 44px) !important;
    height: var(--nav-auth-slot-size, 44px) !important;
    border-radius: 50% !important;
}

.login-trigger-btn.logged-in .nav-user-avatar,
#navUserAvatar {
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    min-height: 32px !important;
    object-fit: cover !important;
    border-radius: 50% !important;
    border: none !important;
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4),
        0 4px 8px rgba(0, 0, 0, 0.3) !important;
    transition: all 0.3s ease;
}

/* Avatar hover - HIGHEST PRIORITY - All possible selectors */
#navUserAvatar:hover,
.nav-user-avatar:hover,
.login-trigger-btn:hover #navUserAvatar,
.login-trigger-btn:hover .nav-user-avatar,
.login-trigger-btn.logged-in:hover .nav-user-avatar {
    transform: scale(0.9) !important;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.4) !important;
    transition: all 0.3s ease !important;
}

/* ==========================================================================
   GALLERY PAGE SPECIFIC FIXES (prompts.html)
   Targeting .user-avatar-btn structure
   ========================================================================== */

/* 1. Ensure the container button matches main page size (48px, avatar 40px centered inside) */
.user-avatar-btn {
    width: 48px !important;
    height: 48px !important;
    min-width: 48px !important;
    min-height: 48px !important;
    border-radius: 50% !important;
    padding: 0 !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    background: transparent !important;
    overflow: visible !important;
    flex-shrink: 0 !important;
    border: none !important;
    box-shadow: none !important;
}

/* 2. Force the image to cover exactly - match main page avatar size */
.user-avatar-btn img {
    width: 32px !important;
    height: 32px !important;
    min-width: 32px !important;
    min-height: 32px !important;
    object-fit: cover !important;
    border-radius: 50% !important;
    display: block !important;
    margin: 0 !important;
    border: none !important;
    aspect-ratio: 1 / 1 !important;
}

/* 3. Hover effects for Gallery avatar */
.user-avatar-btn:hover {
    transform: scale(1.08);
    /* Keep the subtle scale */
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.12) !important;
}

/* Light theme keeps the nav auth trigger visible on the bright navigation bar. */
html[data-theme="light"] .login-trigger-btn,
html[data-theme="light"] button.login-trigger-btn,
html[data-theme="light"] #authBtn {
    color: rgba(15, 23, 42, 0.82) !important;
}

html[data-theme="light"] #defaultAuthIcon {
    color: rgba(15, 23, 42, 0.68) !important;
    filter: drop-shadow(0 6px 12px rgba(15, 23, 42, 0.16)) !important;
}

html[data-theme="light"] #defaultAuthIcon:hover,
html[data-theme="light"] .login-trigger-btn:hover #defaultAuthIcon {
    filter: drop-shadow(0 0 0 3px rgba(15, 23, 42, 0.22))
        drop-shadow(0 0 14px rgba(59, 130, 246, 0.24))
        brightness(1.05) !important;
}

html[data-theme="light"] .login-trigger-btn.logged-in .nav-user-avatar,
html[data-theme="light"] #navUserAvatar {
    box-shadow: 0 5px 12px rgba(15, 23, 42, 0.13),
        0 1px 4px rgba(15, 23, 42, 0.08) !important;
}

html[data-theme="light"] #navUserAvatar:hover,
html[data-theme="light"] .nav-user-avatar:hover,
html[data-theme="light"] .login-trigger-btn:hover #navUserAvatar,
html[data-theme="light"] .login-trigger-btn:hover .nav-user-avatar,
html[data-theme="light"] .login-trigger-btn.logged-in:hover .nav-user-avatar {
    box-shadow: 0 7px 18px rgba(15, 23, 42, 0.16) !important;
}